Bump version to 2.3.3.

Bump version to 2.3.3pre1.
Merge signedness security patch from Sebastian Krahmer
2026-05-25 07:15:35 -04:00 · 2002-01-25 23:31:06 +00:00 · 2002-01-25 07:06:33 +00:00 · 2002-01-25 03:13:35 +00:00 · 2002-01-25 02:53:48 +00:00 · 2002-01-25 02:45:09 +00:00
90 changed files with 9862 additions and 3226 deletions
--- a/.cvsignore
+++ b/.cvsignore
@@ -1,21 +1,18 @@
-.ignore
-.cvsignore
+ID
 Makefile
-a
-b
 config.cache
 config.h
 config.log
 config.status
-dist.tar.gz
+gmon.out
 rsync
-rsync-*
-rsync.aux
-rsync.dvi
-rsync.log
-tech_report.aux
-tech_report.dvi
-tech_report.log
-tech_report.ps
-test
-
+shconfig
+testdir
+tests-dont-exist
+testtmp
+testtmp.*
+tls
+zlib/dummy
+confdefs.h
+conftest.c
+conftest.log
--- a/42
+++ b/42
@@ -0,0 +1,42 @@
+To build and install rsync
+
+  $ ./configure
+  $ make
+  # make install
+
+You may set the installation directory and other parameters by options
+to ./configure.  To see them, use:
+
+  $ ./configure --help
+
+As of 2.4.7, rsync uses Eric Troan's popt option-parsing library.  A
+cut-down copy of release 1.5 is included in the rsync distribution,
+and will be used it there is no popt library on your build host, or if
+the --with-included-popt option is passed to ./configure.
+
+
+
+HP-UX NOTES
+-----------
+
+The HP-UX 10.10 "bundled" C compiler seems not to be able to cope with
+ANSI C.  You may see this error message in config.log if ./configure
+fails:
+
+  (Bundled) cc: "configure", line 2162: error 1705: Function prototypes are an ANSI feature.
+
+Install gcc or HP's "ANSI/C Compiler".
+
+
+
+MAC OSX NOTES
+-------------
+
+Mac OS X (Darwin) seems to have an IPv6 stack, but it does not
+completely implement the "New Sockets" API.  
+
+<http://www.ipv6.org/impl/mac.html> says that Apple do not support
+IPv6 yet.  If your build fails, try again with --disable-ipv6.
+
+
+
--- a/Makefile.in
+++ b/Makefile.in
@@ -9,6 +9,7 @@ mandir=@mandir@
 LIBS=@LIBS@
 CC=@CC@
 CFLAGS=@CFLAGS@
+LDFLAGS=@LDFLAGS@

 INSTALLCMD=@INSTALL@

@@ -16,20 +17,29 @@ srcdir=@srcdir@
 VPATH=$(srcdir)
 SHELL=/bin/sh

+VERSION=@VERSION@

 .SUFFIXES:
 .SUFFIXES: .c .o

-HEADS=byteorder.h config.h errcode.h proto.h rsync.h version.h \
-	lib/fnmatch.h lib/getopt.h lib/mdfour.h
-LIBOBJ=lib/getopt.o lib/fnmatch.o lib/compat.o lib/snprintf.o lib/mdfour.o
+LIBOBJ=lib/fnmatch.o lib/compat.o lib/snprintf.o lib/mdfour.o \
+	lib/permstring.o \
+	@LIBOBJS@
 ZLIBOBJ=zlib/deflate.o zlib/infblock.o zlib/infcodes.o zlib/inffast.o \
 	zlib/inflate.o zlib/inftrees.o zlib/infutil.o zlib/trees.o \
 	zlib/zutil.o zlib/adler32.o 
 OBJS1=rsync.o generator.o receiver.o cleanup.o sender.o exclude.o util.o main.o checksum.o match.o syscall.o log.o backup.o
-OBJS2=options.o flist.o io.o compat.o hlink.o token.o uidlist.o socket.o fileio.o
+OBJS2=options.o flist.o io.o compat.o hlink.o token.o uidlist.o socket.o fileio.o batch.o \
+	clientname.o
 DAEMON_OBJ = params.o loadparm.o clientserver.o access.o connection.o authenticate.o
-OBJS=$(OBJS1) $(OBJS2) $(DAEMON_OBJ) $(LIBOBJ) $(ZLIBOBJ)
+popt_OBJS=popt/findme.o  popt/popt.o  popt/poptconfig.o \
+	popt/popthelp.o popt/poptparse.o
+OBJS=$(OBJS1) $(OBJS2) $(DAEMON_OBJ) $(LIBOBJ) $(ZLIBOBJ) @BUILD_POPT@
+
+tls_OBJ = tls.o syscall.o lib/permstring.o 
+
+# Programs we must have to run the test cases
+CHECK_PROGS = rsync tls

 # note that the -I. is needed to handle config.h when using VPATH
 .c.o:
@@ -53,9 +63,20 @@ install-strip:
 	$(MAKE) INSTALLCMD='$(INSTALLCMD) -s' install

 rsync: $(OBJS)
+	@echo "Please ignore warnings below about mktemp -- it is used in a safe way"
 	$(CC) $(CFLAGS) $(LDFLAGS) -o rsync $(OBJS) $(LIBS)

-$(OBJS): $(HEADS)
+$(OBJS): config.h
+
+tls: $(tls_OBJ)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(tls_OBJ) $(LIBS)
+
+Makefile: Makefile.in configure config.status
+	echo "WARNING: You need to run ./config.status --recheck"
+
+# don't actually run autoconf, just issue a warning
+configure: configure.in
+	echo "WARNING: you need to rerun autoconf"

 rsync.1: rsync.yo
 	yodl2man -o rsync.1 rsync.yo
@@ -67,11 +88,12 @@ proto:
 	cat *.c lib/compat.c | awk -f mkproto.awk > proto.h

 clean:
-	rm -f *~ $(OBJS) rsync 
+	rm -f *~ $(OBJS) rsync $(TLS_OBJ) tls
+	rm -rf ./testtmp
+	rm -f config.cache 

 distclean: clean
-	rm -f config.h config.cache config.status Makefile
-
+	rm -f Makefile config.h config.status

 # this target is really just for my use. It only works on a limited
 # range of machines and is used to produce a list of potentially
@@ -80,3 +102,34 @@ finddead:
 	nm *.o */*.o |grep 'U ' | awk '{print $$2}' | sort -u > nmused.txt
 	nm *.o */*.o |grep 'T ' | awk '{print $$3}' | sort -u > nmfns.txt
 	comm -13 nmused.txt nmfns.txt 
+
+# 'check' is the GNU name, 'test' is the name for everybody else :-)
+.PHONY: check test
+
+test: check
+
+
+# There seems to be no standard way to specify some variables as
+# exported from a Makefile apart from listing them like this.
+
+# TODO: Tests that depend on built test aide programs like tls need to
+# know where the build directory is.
+
+# This depends on building rsync; if we need any helper programs it
+# should depend on them too.
+
+# We try to run the scripts with POSIX mode on, in the hope that will
+# catch Bash-isms earlier even if we're running on GNU.  Of course, we
+# might lose in the future where POSIX diverges from old sh.
+
+check: all $(CHECK_PROGS)
+	POSIXLY_CORRECT=1 TLS=`pwd`/tls rsync_bin=`pwd`/rsync srcdir="$(srcdir)" $(srcdir)/runtests.sh
+
+# This does *not* depend on building or installing: you can use it to
+# check a version installed from a binary or some other source tree,
+# if you want.
+
+installcheck: $(CHECK_PROGS)
+	POSIXLY_CORRECT=1 TLS=`pwd`/tls rsync_bin="$(bindir)/rsync" srcdir="$(srcdir)" $(srcdir)/runtests.sh
+
+# TODO: Add 'dist' target; need to know which files will be included
--- a/7
+++ b/7
@@ -0,0 +1,7 @@
+rsync 2.3.3 (26 Jan 2002)
+
+  SECURITY FIXES:
+
+    * Signedness security patch from Sebastian Krahmer
+      <krahmer@suse.de> -- in some cases we were not sufficiently
+      careful about reading integers from the network.
--- a/148
+++ b/148
@@ -0,0 +1,148 @@
+rsync 2.5.1 (2002-01-03)
+
+  BUG FIXES: 
+   
+    * Fix for segfault in --daemon mode configuration parser.  (Paul
+      Mackerras)
+
+    * Correct string<->address parsing for both IPv4 and 6.
+      (YOSHIFUJI Hideaki, SUMIKAWA Munechika and Jun-ichiro "itojun"
+      Hagino)
+
+    * Various fixes for IPv6 support.  (Dave Dykstra)
+
+    * rsync.1 typo fix.  (Matt Kraai)
+
+    * Test suite typo fixes.  (Tom Schmidt)
+
+    * rsync.1 grammar and clarity improvements.  (Edward
+      Welbourne)
+
+    * Correction to ./configure tests for inet_ntop.  (Jeff Garzik)
+
+  ENHANCEMENTS:
+
+    * --progress and -P now show estimated data transfer rate (in a
+        multiple of bytes/s) and estimated time to completion.  (Rik
+        Faith)
+   
+    * --no-detach option, required to run as a W32 service and also
+        useful when running on Unix under daemontools, AIX's SRC, or a
+        debugger.  (Max Bowsher, Jos Backus)
+
+    * Clearer error messages for some conditions.
+
+rsync 2.5.0 (2001-11-30)
+
+  ANNOUNCEMENTS
+
+    * Martin Pool <mbp@samba.org> is now a co-maintainer.
+
+  NEW FEATURES
+
+    * Support for LSB-compliant packaging <http://www.linuxbase.org/>
+
+    * Shell wildcards are allowed in "auth users" lines.
+
+    * Merged UNC rsync+ patch to support creation of standalone patch
+      sets.  By Bert J. Dempsey and Debra Weiss, updated by Jos
+      Backus.  <http://www.ils.unc.edu/i2dsi/unc_rsync+.html>
+
+    * IPv6 support based on a patch from KAME.net, on systems
+      including modern versions of Linux, Solaris, and HP-UX.  Also
+      includes IPv6 compatibility functions for old OSs by the
+      Internet Software Consortium, Paul Vixie, the OpenSSH
+      portability project, and OpenBSD.
+
+  ENHANCEMENTS
+
+    * Include/exclude cluestick: with -vv, print out whether files are
+      included or excluded and why.
+
+    * Many error messages have more friendly explanations and more
+      details.
+
+    * Manual page improvements plus scanty protocol documentation.
+
+    * When running as --daemon in the background and using a "log
+      file" rsyncd.conf directive, close the log file every time it is
+      open when going to sleep on the socket.  This allows the log
+      file to get cleaned out by another process.
+
+    * Change to using libpopt rather than getopt for processing
+      options.	This makes the code cleaner and the behaviour more
+      consistent across platforms.  popt is included and built if not
+      installed on the platform.
+
+    * More details in --version, including note about whether 64-bit
+      files, symlinks and hardlinks are supported.
+
+    * MD4 code may use less CPU cycles.
+
+    * Use mkstemp on systems where it is secure.  If we use mktemp,
+      explain that we do it in a secure way.
+
+    * --whole-file is the default when source and target are on the
+	local machine.
+
+  BUG FIXES:
+
+    * Fix for various bugs causing rsync to hang.
+
+    * Attempt to fix Large File Summit support on AIX.
+
+    * Attempt to fix error handling lockup bug.
+
+    * Give a non-0 exit code if *any* of the files we have been asked
+      to transfer fail to transfer 
+
+    * For log messages containing ridiculously long strings that might
+      overflow a buffer rsync no longer aborts, but rather prints an
+      ellipsis at the end of the string.  (Patch from Ed Santiago.)
+
+  PLATFORMS:
+
+    * Improved support for UNICOS (tested on Cray T3E and Cray SV1)
+
+    * autoconf2.52 (or later) is now required to rebuild the autoconf
+      scripts.	It is not required to simply build rsync.
+
+    * Platforms thought to work in this release:
+
+		Cray SV1 UNICOS 10.0.0.8 cc
+		Debian Linux 2.2 UltraSparc gcc
+		Debian Linux testing/unstable ARM gcc
+		FreeBSD 3.3-RELEASE i386 cc
+		FreeBSD 4.1.1-RELEASE i386 cc
+		FreeBSD 4.3-STABLE i386 cc
+		HP PA-RISC HP-UX 10.20 gcc
+		HP PA-RISC HP-UX 11.11 cc
+		IRIX 6.5 MIPS cc
+		IRIX 6.5 MIPS gcc
+		Mac OS X PPC (--disable-ipv6) cc
+		NetBSD 1.5 i386 gcc
+		NetBSD Current i386 cc
+		OpenBSD 2.5 Sparc gcc
+		OpenBSD 2.9 i386 cc
+		OpenBSD Current i386 cc
+		RedHat 6.2 i386 gcc
+		RedHat 6.2 i386 insure++
+		RedHat 7.0 i386 gcc
+		RedHat 7.1 i386 (Kernel 2.4.10) gcc
+		Slackware 8.0 i686 (Kernel 2.4.10)
+		Solaris 8 UltraSparc cc
+		Solaris 8 UltraSparc gcc
+		Solaris 8 i386 gcc
+		SuSE 7.1 i386 gcc2.95.2
+		SuSE 7.1 ppc gcc2.95.2
+		i386-pc-sco3.2v5.0.5 cc
+		i386-pc-sco3.2v5.0.5 gcc
+		powerpc-ibm-aix4.3.3.0 cc
+		i686-unknown-sysv5UnixWare7.1.0 gcc
+		i686-unknown-sysv5UnixWare7.1.0 cc
+
+  TESTING:
+
+    * The existing test.sh script by Phil Hands has been merged into a
+      test framework that works from both "make check" and the Samba
+      build farm.
--- a/36
+++ b/36
@@ -90,11 +90,14 @@ Options
 SETUP
 -----

-Rsync uses rsh or ssh for communication. It does not need to be setuid
-and requires no special privileges for installation. It does not
-require a inetd entry or a daemon. You must, however, have a working
-rsh or ssh system. Using ssh is recommended for its security
-features. 
+Rsync normally uses rsh or ssh for communication.  It does not need to
+be setuid and requires no special privileges for installation.  You
+must, however, have a working rsh or ssh system. Using ssh is
+recommended for its security features.
+
+Alternatively, rsync can run in `daemon' mode, listening on a socket.
+This is generally used for public file distribution, although
+authentication and access control are available.

 To install rsync, first run the "configure" script. This will create a
 Makefile and config.h appropriate for your system. Then type
@@ -125,8 +128,7 @@ There is a mailing list for the discussion of rsync and its
 applications. It is open to anyone to join. I will announce new
 versions on this list. 

-To join the mailing list send mail to listproc@samba.org with
-no subject and a body of "subscribe rsync Your Name".
+To join the mailing list see the web page at http://lists.samba.org/

 To send mail to everyone on the list send it to rsync@samba.org

@@ -141,9 +143,7 @@ This will give you access to the bug tracking system used by the
 developers of rsync and will allow you to look at other bug reports or
 submit a new bug report.

-If you don't have web access then mail bug reports to
-rsync-bugs@samba.org or (if you think it will be of interest to lots
-of people) send it to rsync@samba.org
+If you don't have web access then mail bug reports to rsync@samba.org.


 CVS TREE
@@ -153,22 +153,24 @@ If you want to get the very latest version of rsync direct from the
 source code repository then you can use anonymous cvs. You will need a
 recent version of cvs then use the following commands:

-	cvs -d :pserver:cvs@cvs.samba.org:/cvsroot login
+	cvs -d :pserver:cvs@pserver.samba.org:/cvsroot login
 	Password: cvs

-	cvs -d :pserver:cvs@cvs.samba.org:/cvsroot co rsync
+	cvs -d :pserver:cvs@pserver.samba.org:/cvsroot co rsync

-Look at the cvs documentation for more details.
+Look at the cvs documentation, or http://samba.org/cvs.html, for more
+details.


 COPYRIGHT
 ---------

-Rsync was written by Andrew Tridgell and Paul Mackerras, and is
-available under the Gnu Public License.
+rsync was originally written by Andrew Tridgell and has been improved
+by many developers around the world.  rsync may be used, modified and
+redistributed only under the terms of the GNU General Public License,
+found in the file COPYING in this distribution, or at 

-tridge@samba.org
-paulus@cs.anu.edu.au
+  http://www.fsf.org/licenses/gpl.html


 AVAILABILITY
--- a/309
+++ b/309
@@ -0,0 +1,309 @@
+-*- indented-text -*-
+
+URGENT ---------------------------------------------------------------
+
+
+IMPORTANT ------------------------------------------------------------
+
+Cross-test versions
+
+  Part of the regression suite should be making sure that we don't
+  break backwards compatibility: old clients vs new servers and so
+  on.  Ideally we would test the cross product of versions.  
+
+  It might be sufficient to test downloads from well-known public
+  rsync servers running different versions of rsync.  This will give
+  some testing and also be the most common case for having different
+  versions and not being able to upgrade.
+
+use chroot
+
+  If the platform doesn't support it, then don't even try.
+
+  If running as non-root, then don't fail, just give a warning.
+  (There was a thread about this a while ago?)
+
+    http://lists.samba.org/pipermail/rsync/2001-August/thread.html
+    http://lists.samba.org/pipermail/rsync/2001-September/thread.html
+
+--files-from
+
+  Avoids traversal.  Better option than a pile of --include statements
+  for people who want to generate the file list using a find(1)
+  command or a script.
+
+
+Performance
+
+  Traverse just one directory at a time.  Tridge says it's possible.
+
+  At the moment rsync reads the whole file list into memory at the
+  start, which makes us use a lot of memory and also not pipeline
+  network access as much as we could.
+
+
+Handling duplicate names
+
+  We need to be careful of duplicate names getting into the file list.
+  See clean_flist().  This could happen if multiple arguments include
+  the same file.  Bad.
+
+  I think duplicates are only a problem if they're both flowing
+  through the pipeline at the same time.  For example we might have
+  updated the first occurrence after reading the checksums for the
+  second.  So possibly we just need to make sure that we don't have
+  both in the pipeline at the same time.  
+
+  Possibly if we did one directory at a time that would be sufficient.
+
+  Alternatively we could pre-process the arguments to make sure no
+  duplicates will ever be inserted.  There could be some bad cases
+  when we're collapsing symlinks.
+
+  We could have a hash table.
+
+  The root of the problem is that we do not want more than one file
+  list entry referring to the same file.  At first glance there are
+  several ways this could happen: symlinks, hardlinks, and repeated
+  names on the command line.
+
+  If names are repeated on the command line, they may be present in
+  different forms, perhaps by traversing directory paths in different
+  ways, traversing paths including symlinks.  Also we need to allow
+  for expansion of globs by rsync.
+
+  At the moment, clean_flist() requires having the entire file list in
+  memory.  Duplicate names are detected just by a string comparison.
+
+  We don't need to worry about hard links causing duplicates because
+  files are never updated in place.  Similarly for symlinks.
+
+  I think even if we're using a different symlink mode we don't need
+  to worry.
+
+  Unless we're really clever this will introduce a protocol
+  incompatibility, so we need to be able to accept the old format as
+  well.
+
+
+Memory accounting
+
+  At exit, show how much memory was used for the file list, etc.
+
+  Also we do a wierd exponential-growth allocation in flist.c.  I'm
+  not sure this makes sense with modern mallocs.  At any rate it will
+  make us allocate a huge amount of memory for large file lists.
+
+  We can try using the GNU/SVID/XPG mallinfo() function to get some
+  heap statistics.
+
+
+Hard-link handling
+
+  At the moment hardlink handling is very expensive, so it's off by
+  default.  It does not need to be so.  
+
+  Since most of the solutions are rather intertwined with the file
+  list it is probably better to fix that first, although fixing
+  hardlinks is possibly simpler.
+
+  We can rule out hardlinked directories since they will probably
+  screw us up in all kinds of ways.  They simply should not be used.
+
+  At the moment rsync only cares about hardlinks to regular files.  I
+  guess you could also use them for sockets, devices and other beasts,
+  but I have not seen them.
+
+  When trying to reproduce hard links, we only need to worry about
+  files that have more than one name (nlinks>1 && !S_ISDIR). 
+
+  The basic point of this is to discover alternate names that refer to
+  the same file.  All operations, including creating the file and
+  writing modifications to it need only to be done for the first name.
+  For all later names, we just create the link and then leave it
+  alone.
+
+  If hard links are to be preserved:
+
+    Before the generator/receiver fork, the list of files is received
+    from the sender (recv_file_list), and a table for detecting hard
+    links is built.
+
+    The generator looks for hard links within the file list and does
+    not send checksums for them, though it does send other metadata.
+
+    The sender sends the device number and inode with file entries, so
+    that files are uniquely identified.
+
+    The receiver goes through and creates hard links (do_hard_links)
+    after all data has been written, but before directory permissions
+    are set.
+
+  At the moment device and inum are sent as 4-byte integers, which
+  will probably cause problems on large filesystems.  On Linux the
+  kernel uses 64-bit ino_t's internally, and people will soon have
+  filesystems big enough to use them.  We ought to follow NFS4 in
+  using 64-bit device and inode identification, perhaps with a
+  protocol version bump.
+
+  Once we've seen all the names for a particular file, we no longer
+  need to think about it and we can deallocate the memory.
+
+  We can also have the case where there are links to a file that are
+  not in the tree being transferred.  There's nothing we can do about
+  that.  Because we rename the destination into place after writing,
+  any hardlinks to the old file are always going to be orphaned.  In
+  fact that is almost necessary because otherwise we'd get really
+  confused if we were generating checksums for one name of a file and
+  modifying another.
+
+  At the moment the code seems to make a whole second copy of the file
+  list, which seems unnecessary.
+
+  We should have a test case that exercises hard links.  Since it
+  might be hard to compare ./tls output where the inodes change we
+  might need a little program to check whether several names refer to
+  the same file.
+
+IPv6
+
+  Implement suggestions from http://www.kame.net/newsletter/19980604/
+  and ftp://ftp.iij.ad.jp/pub/RFC/rfc2553.txt
+
+  If a host has multiple addresses, then listen try to connect to all
+  in order until we get through.  (getaddrinfo may return multiple
+  addresses.)  This is kind of implemented already.
+
+  Possibly also when starting as a server we may need to listen on
+  multiple passive addresses.  This might be a bit harder, because we
+  may need to select on all of them.  Hm.
+
+  Define a syntax for IPv6 literal addresses.  Since they include
+  colons, they tend to break most naming systems, including ours.
+  Based on the HTTP IPv6 syntax, I think we should use
+ 
+     rsync://[::1]/foo/bar
+     [::1]::bar
+
+  which should just take a small change to the parser code.
+
+Errors
+
+  If we hang or get SIGINT, then explain where we were up to.  Perhaps
+  have a static buffer that contains the current function name, or
+  some kind of description of what we were trying to do.  This is a
+  little easier on people than needing to run strace/truss.
+
+  "The dungeon collapses!  You are killed."  Rather than "unexpected
+  eof" give a message that is more detailed if possible and also more
+  helpful.  
+
+File attributes
+
+  Device major/minor numbers should be at least 32 bits each.  See
+  http://lists.samba.org/pipermail/rsync/2001-November/005357.html
+
+  Transfer ACLs.  Need to think of a standard representation.
+  Probably better not to even try to convert between NT and POSIX.
+  Possibly can share some code with Samba.
+
+Empty directories
+
+  With the current common --include '*/' --exclude '*' pattern, people
+  can end up with many empty directories.  We might avoid this by
+  lazily creating such directories.
+
+zlib
+
+  Perhaps don't use our own zlib.  Will we actually be incompatible,
+  or just be slightly less efficient?
+
+logging
+
+  Perhaps flush stdout after each filename, so that people trying to
+  monitor progress in a log file can do so more easily.  See
+  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=48108
+
+  At the connections that just get a list of modules are not logged,
+  but they should be.
+
+rsyncd over ssh
+
+  There are already some patches to do this.
+
+proxy authentication
+
+  Allow RSYNC_PROXY to be http://user:pass@proxy.foo:3128/, and do
+  HTTP Basic Proxy-Authentication.  
+
+  Multiple schemes are possible, up to and including the insanity that
+  is NTLM, but Basic probably covers most cases.
+
+SOCKS
+
+  Add --with-socks, and then perhaps a command-line option to put them
+  on or off.  This might be more reliable than LD_PRELOAD hacks.
+
+PLATFORMS ------------------------------------------------------------
+
+Win32
+
+  Don't detach, because this messes up --srvany.
+
+  http://sources.redhat.com/ml/cygwin/2001-08/msg00234.html
+
+  According to "Effective TCP/IP Programming" (??) close() on a socket
+  has incorrect behaviour on Windows -- it sends a RST packet to the
+  other side, which gives a "connection reset by peer" error.  On that
+  platform we should probably do shutdown() instead.  However, on Unix
+  we are correct to call close(), because shutdown() discards
+  untransmitted data.
+
+DOCUMENTATION --------------------------------------------------------
+
+Update README
+
+BUILD FARM -----------------------------------------------------------
+
+Add machines
+
+  AMDAHL UTS (Dave Dykstra)
+
+  Cygwin (on different versions of Win32?)
+
+  HP-UX variants (via HP?)
+
+  SCO
+
+NICE -----------------------------------------------------------------
+
+--no-detach and --no-fork options
+
+  Very useful for debugging.  Also good when running under a
+  daemon-monitoring process that tries to restart the service when the
+  parent exits.
+
+hang/timeout friendliness
+
+verbose output
+  
+  Indicate whether files are new, updated, or deleted
+
+internationalization
+
+  Change to using gettext().  Probably need to ship this for platforms
+  that don't have it.  
+
+  Solicit translations.
+
+  Does anyone care?
+
+rsyncsh 
+
+   Write a small emulation of interactive ftp as a Pythonn program
+   that calls rsync.  Commands such as "cd", "ls", "ls *.c" etc map
+   fairly directly into rsync commands: it just needs to remember the
+   current host, directory and so on.  We can probably even do
+   completion of remote filenames.
+
+%K%
--- a/access.c
+++ b/access.c
@@ -68,6 +68,7 @@ static int match_address(char *addr, char *tok)
 			mask = ntohl(mask);
 		} else {
 			int bits = atoi(p+1);
+			if (bits == 0) return 1;
 			if (bits <= 0 || bits > 32) {
 				rprintf(FERROR,"malformed mask in %s\n", tok);
 				return 0;
--- a/acconfig.h
+++ b/acconfig.h
@@ -1,13 +1,10 @@
-#undef HAVE_BROKEN_READDIR
-#undef HAVE_ERRNO_DECL
-#undef HAVE_LONGLONG
-#undef HAVE_OFF64_T
-#undef HAVE_REMSH
-#undef HAVE_UNSIGNED_CHAR
-#undef HAVE_UTIMBUF
 #undef ino_t
 #undef HAVE_CONNECT
 #undef HAVE_SHORT_INO_T
 #undef HAVE_GETOPT_LONG
 #undef REPLACE_INET_NTOA
+#undef REPLACE_INET_ATON
 #undef HAVE_GETTIMEOFDAY_TZ
+#undef ENABLE_IPV6
+#undef HAVE_SOCKADDR_LEN
+#undef HAVE_SOCKETPAIR
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -21,3 +21,51 @@ AC_DEFUN(AC_VALIDATE_CACHE_SYSTEM_TYPE, [
    ac_cv_build_system_type="$build"
    ac_cv_target_system_type="$target"
 ])
+
+dnl Check for socklen_t: historically on BSD it is an int, and in
+dnl POSIX 1g it is a type of its own, but some platforms use different
+dnl types for the argument to getsockopt, getpeername, etc.  So we
+dnl have to test to find something that will work.
+
+dnl This is no good, because passing the wrong pointer on C compilers is
+dnl likely to only generate a warning, not an error.  We don't call this at
+dnl the moment.
+
+AC_DEFUN([TYPE_SOCKLEN_T],
+[
+   AC_CHECK_TYPE([socklen_t], ,[
+      AC_MSG_CHECKING([for socklen_t equivalent])
+      AC_CACHE_VAL([rsync_cv_socklen_t_equiv],
+      [
+         # Systems have either "struct sockaddr *" or
+         # "void *" as the second argument to getpeername
+         rsync_cv_socklen_t_equiv=
+         for arg2 in "struct sockaddr" void; do
+            for t in int size_t unsigned long "unsigned long"; do
+               AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <sys/socket.h>
+
+                  int getpeername (int, $arg2 *, $t *);
+               ],[
+                  $t len;
+                  getpeername(0,0,&len);
+               ],[
+                  rsync_cv_socklen_t_equiv="$t"
+                  break
+               ])
+            done
+         done
+
+         if test "x$rsync_cv_socklen_t_equiv" = x; then
+            AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
+         fi
+      ])
+      AC_MSG_RESULT($rsync_cv_socklen_t_equiv)
+      AC_DEFINE_UNQUOTED(socklen_t, $rsync_cv_socklen_t_equiv,
+			[type to use in place of socklen_t if not defined])],
+      [#include <sys/types.h>
+#include <sys/socket.h>])
+])
+
+
--- a/authenticate.c
+++ b/authenticate.c
@@ -1,5 +1,6 @@
-/* 
-   Copyright (C) Andrew Tridgell 1998
+/* -*- c-file-style: "linux"; -*-
+   
+   Copyright (C) 1998-2000 by Andrew Tridgell 
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -85,7 +86,7 @@ static int get_secret(int module, char *user, char *secret, int len)
 	if (fd == -1) return 0;

 	if (do_stat(fname, &st) == -1) {
-		rprintf(FERROR,"stat(%s) : %s\n", fname, strerror(errno));
+		rsyserr(FERROR, errno, "stat(%s)", fname);
 		ok = 0;
 	} else if (lp_strict_modes(module)) {
 		if ((st.st_mode & 06) != 0) {
@@ -104,8 +105,8 @@ static int get_secret(int module, char *user, char *secret, int len)

 	while (!found) {
 		int i = 0;
-		memset(line, 0, sizeof(line));
-		while (i<(sizeof(line)-1)) {
+		memset(line, 0, sizeof line);
+		while ((size_t) i < (sizeof(line)-1)) {
 			if (read(fd, &line[i], 1) != 1) {
 				memset(line, 0, sizeof(line));
 				close(fd);
@@ -135,7 +136,6 @@ static int get_secret(int module, char *user, char *secret, int len)
 static char *getpassf(char *filename)
 {
 	char buffer[100];
-	int len=0;
 	int fd=0;
 	STRUCT_STAT st;
 	int ok = 1;
@@ -145,13 +145,13 @@ static char *getpassf(char *filename)
 	if (!filename) return NULL;

 	if ( (fd=open(filename,O_RDONLY)) == -1) {
-		rprintf(FERROR,"could not open password file \"%s\"\n",filename);
+		rsyserr(FERROR, errno, "could not open password file \"%s\"",filename);
 		if (envpw) rprintf(FERROR,"falling back to RSYNC_PASSWORD environment variable.\n");	
 		return NULL;
 	}
 	
 	if (do_stat(filename, &st) == -1) {
-		rprintf(FERROR,"stat(%s) : %s\n", filename, strerror(errno));
+		rsyserr(FERROR, errno, "stat(%s)", filename);
 		ok = 0;
 	} else if ((st.st_mode & 06) != 0) {
 		rprintf(FERROR,"password file must not be other-accessible\n");
@@ -170,7 +170,7 @@ static char *getpassf(char *filename)
 	if (envpw) rprintf(FERROR,"RSYNC_PASSWORD environment variable ignored\n");

 	buffer[sizeof(buffer)-1]='\0';
-	if ( (len=read(fd,buffer,sizeof(buffer)-1)) > 0)
+	if (read(fd,buffer,sizeof(buffer)-1) > 0)
 	{
 		char *p = strtok(buffer,"\n\r");
 		close(fd);
@@ -234,12 +234,12 @@ char *auth_server(int fd, int module, char *addr, char *leader)
 	if (sscanf(line,"%99s %29s", user, pass) != 2) {
 		return NULL;
 	}
-
+	
 	users = strdup(users);
 	if (!users) return NULL;

 	for (tok=strtok(users," ,\t"); tok; tok = strtok(NULL," ,\t")) {
-		if (strcmp(tok, user) == 0) break;
+		if (fnmatch(tok, user, 0) == 0) break;
 	}
 	free(users);

@@ -272,6 +272,9 @@ void auth_client(int fd, char *user, char *challenge)
 	if (!user || !*user) return;

 	if (!(pass=getpassf(password_file)) && !(pass=getenv("RSYNC_PASSWORD"))) {
+		/* XXX: cyeoh says that getpass is deprecated, because
+		   it may return a truncated password on some systems,
+		   and it is not in the LSB. */
 		pass = getpass("Password: ");
 	}

--- a/backup.c
+++ b/backup.c
@@ -39,11 +39,11 @@ static int make_simple_backup(char *fname)
 		return 0;
 	}

-	slprintf(fnamebak,sizeof(fnamebak),"%s%s",fname,backup_suffix);
+	snprintf(fnamebak,sizeof(fnamebak),"%s%s",fname,backup_suffix);
 	if (do_rename(fname,fnamebak) != 0) {
 		/* cygwin (at least version b19) reports EINVAL */
 		if (errno != ENOENT && errno != EINVAL) {
-			rprintf(FERROR,"rename %s %s : %s\n",fname,fnamebak,strerror(errno));
+			rsyserr(FERROR, errno, "rename %s to backup %s", fname, fnamebak);
 			return 0;
 		}
 	} else if (verbose > 1) {
@@ -92,9 +92,9 @@ static int make_bak_dir(char *fname,char *bak_path)
        while(strncmp(bak_path,"./",2)==0) bak_path += 2;

        if(bak_path[strlen(bak_path)-1]!='/') {
-                slprintf(fullpath,sizeof(fullpath),"%s/",bak_path);
+                snprintf(fullpath,sizeof(fullpath),"%s/",bak_path);
        } else {
-                slprintf(fullpath,sizeof(fullpath),"%s",bak_path);
+                snprintf(fullpath,sizeof(fullpath),"%s",bak_path);
        }
        p=fullpath;
        q=&fullpath[strlen(fullpath)];  /* End of bak_path string */
@@ -197,7 +197,10 @@ static int keep_backup(char *fname)
 	if (do_stat (fname, &st)) return 1;
 #endif

-	file = make_file (0, fname);
+	file = make_file(-1, fname, NULL, 1);
+
+	/* the file could have disappeared */
+	if (!file) return 1;

        /* make a complete pathname for backup file */
        if (strlen(backup_dir) + strlen(fname) > (MAXPATHLEN - 1)) {
@@ -205,7 +208,7 @@ static int keep_backup(char *fname)
                return 0;
        }

-        slprintf(keep_name, sizeof (keep_name), "%s/%s", backup_dir, fname);
+        snprintf(keep_name, sizeof (keep_name), "%s/%s", backup_dir, fname);


 #ifdef HAVE_MKNOD
--- a/batch.c
+++ b/batch.c
@@ -0,0 +1,605 @@
+/* -*- c-file-style: "linux" -*-
+   
+   Weiss 1/1999
+   Batch utilities for rsync.
+
+*/
+
+#include "rsync.h"
+#include <time.h>
+
+char rsync_flist_file[27] = "rsync_flist.";
+char rsync_csums_file[27] = "rsync_csums.";
+char rsync_delta_file[27] = "rsync_delta.";
+char rsync_argvs_file[27] = "rsync_argvs.";
+
+char batch_file_ext[15];
+
+int fdb;
+int fdb_delta;
+int fdb_open;
+int fdb_close;
+
+struct file_list *batch_flist;
+
+void create_batch_file_ext()
+{
+	struct tm *timeptr;
+	time_t elapsed_seconds;
+
+	/* Save run date and time to use for batch file extensions */
+	time(&elapsed_seconds);
+	timeptr = localtime(&elapsed_seconds);
+
+	sprintf(batch_file_ext, "%4d%02d%02d%02d%02d%02d",
+		timeptr->tm_year + 1900, timeptr->tm_mon + 1,
+		timeptr->tm_mday, timeptr->tm_hour, timeptr->tm_min,
+		timeptr->tm_sec);
+	rprintf(FINFO,"batch file extension: %s\n", batch_file_ext);
+}
+
+void set_batch_file_ext(char *ext)
+{
+	strcpy(batch_file_ext, ext);
+}
+
+void write_batch_flist_file(char *buff, int bytes_to_write)
+{
+
+	if (fdb_open) {
+		/* Set up file extension */
+		strcat(rsync_flist_file, batch_file_ext);
+
+		/* Open batch flist file for writing; create it if it doesn't exist */
+		fdb =
+		    do_open(rsync_flist_file, O_WRONLY | O_CREAT | O_TRUNC,
+			    S_IREAD | S_IWRITE);
+		if (fdb == -1) {
+			rprintf(FERROR, "Batch file %s open error: %s\n",
+				rsync_flist_file, strerror(errno));
+			close(fdb);
+			exit_cleanup(1);
+		}
+		fdb_open = 0;
+	}
+
+	/* Write buffer to batch flist file */
+
+	if (write(fdb, buff, bytes_to_write) == -1) {
+		rprintf(FERROR, "Batch file %s write error: %s\n",
+			rsync_flist_file, strerror(errno));
+		close(fdb);
+		exit_cleanup(1);
+	}
+
+
+	if (fdb_close) {
+		close(fdb);
+	}
+}
+
+void write_batch_flist_info(int flist_count, struct file_struct **fptr)
+{
+	int i;
+	int bytes_to_write;
+
+	/* Write flist info to batch file */
+
+	bytes_to_write =
+	    sizeof(unsigned) +
+	    sizeof(time_t) +
+	    sizeof(OFF_T) +
+	    sizeof(mode_t) +
+	    sizeof(INO64_T) +
+	    sizeof(DEV64_T) +
+	    sizeof(DEV64_T) +
+	    sizeof(uid_t) +
+	    sizeof(gid_t);
+
+	fdb_open = 1;
+	fdb_close = 0;
+
+	for (i = 0; i < flist_count; i++) {
+		write_batch_flist_file((char *) fptr[i], bytes_to_write);
+		write_char_bufs(fptr[i]->basename);
+		write_char_bufs(fptr[i]->dirname);
+		write_char_bufs(fptr[i]->basedir);
+		write_char_bufs(fptr[i]->link);
+		if (i == flist_count - 1) {
+			fdb_close = 1;
+		}
+		write_char_bufs(fptr[i]->sum);
+	}
+
+}
+
+void write_char_bufs(char *buf)
+{
+	/* Write the size of the string which will follow  */
+
+	char b[4];
+	if (buf != NULL)
+		SIVAL(b, 0, strlen(buf));
+	else {
+		SIVAL(b, 0, 0);
+	}
+
+	write_batch_flist_file(b, sizeof(int));
+
+	/*  Write the string if there is one */
+
+	if (buf != NULL) {
+		write_batch_flist_file(buf, strlen(buf));
+	}
+}
+
+void write_batch_argvs_file(int argc, char *argv[])
+{
+	int fdb;
+	int i;
+	char buff[256];
+
+	strcat(rsync_argvs_file, batch_file_ext);
+
+
+	/* Open batch argvs file for writing; create it if it doesn't exist */
+	fdb = do_open(rsync_argvs_file, O_WRONLY | O_CREAT | O_TRUNC,
+		      S_IREAD | S_IWRITE | S_IEXEC);
+	if (fdb == -1) {
+		rprintf(FERROR, "Batch file %s open error: %s\n",
+			rsync_argvs_file, strerror(errno));
+		close(fdb);
+		exit_cleanup(1);
+	}
+	buff[0] = '\0';
+	/* Write argvs info to batch file */
+
+	for (i = 0; i < argc; ++i) {
+		if (i == argc - 2)
+		    continue;
+		/*
+		 * FIXME:
+		 * I think directly manipulating argv[] is probably bogus
+		 */
+		if (!strcmp(argv[i], "--write-batch")) {
+			/* Safer to change it here than script */
+			/* Change to --read-batch + ext * to get ready for remote */
+			strlcat(buff, "--read-batch ", sizeof(buff));
+			strlcat(buff, batch_file_ext, sizeof(buff));
+		} else {
+			strlcat(buff, argv[i], sizeof(buff));
+		}
+
+		if (i < (argc - 1)) {
+			strlcat(buff, " ", sizeof(buff));
+		}
+	}
+	strlcat(buff, "\n", sizeof(buff));
+	if (!write(fdb, buff, strlen(buff))) {
+		rprintf(FERROR, "Batch file %s write error: %s\n",
+			rsync_argvs_file, strerror(errno));
+		close(fdb);
+		exit_cleanup(1);
+	}
+	close(fdb);
+}
+
+struct file_list *create_flist_from_batch()
+{
+	unsigned char flags;
+
+	fdb_open = 1;
+	fdb_close = 0;
+
+	batch_flist = (struct file_list *) malloc(sizeof(batch_flist[0]));
+	if (!batch_flist) {
+		out_of_memory("create_flist_from_batch");
+	}
+	batch_flist->count = 0;
+	batch_flist->malloced = 1000;
+	batch_flist->files =
+	    (struct file_struct **) malloc(sizeof(batch_flist->files[0]) *
+					   batch_flist->malloced);
+	if (!batch_flist->files) {
+		out_of_memory("create_flist_from_batch");	/* dw -- will exit */
+	}
+
+	for (flags = read_batch_flags(); flags; flags = read_batch_flags()) {
+
+		int i = batch_flist->count;
+
+		if (i >= batch_flist->malloced) {
+			if (batch_flist->malloced < 1000)
+				batch_flist->malloced += 1000;
+			else
+				batch_flist->malloced *= 2;
+			batch_flist->files =
+			    (struct file_struct **) realloc(batch_flist->
+							    files,
+							    sizeof
+							    (batch_flist->
+							     files[0]) *
+							    batch_flist->
+							    malloced);
+			if (!batch_flist->files)
+				out_of_memory("create_flist_from_batch");
+		}
+		read_batch_flist_info(&batch_flist->files[i]);
+		batch_flist->files[i]->flags = flags;
+
+		batch_flist->count++;
+	}
+
+	return batch_flist;
+
+}
+
+int read_batch_flist_file(char *buff, int len)
+{
+	int bytes_read;
+
+	if (fdb_open) {
+
+		/*  Set up file extension  */
+		strcat(rsync_flist_file, batch_file_ext);
+
+		/* Open batch flist file for reading */
+		fdb = do_open(rsync_flist_file, O_RDONLY, 0);
+		if (fdb == -1) {
+			rprintf(FERROR, "Batch file %s open error: %s\n",
+				rsync_flist_file, strerror(errno));
+			close(fdb);
+			exit_cleanup(1);
+		}
+		fdb_open = 0;
+	}
+
+	/* Read flist batch file */
+
+	bytes_read = read(fdb, buff, len);
+
+	if (bytes_read == -1) {
+		rprintf(FERROR, "Batch file %s read error: %s\n",
+			rsync_flist_file, strerror(errno));
+		close(fdb);
+		exit_cleanup(1);
+	}
+	if (bytes_read == 0) {	/* EOF */
+		close(fdb);
+	}
+	return bytes_read;
+}
+
+unsigned char read_batch_flags()
+{
+	int flags;
+
+	if (read_batch_flist_file((char *) &flags, 4)) {
+		return 1;
+	} else {
+		return 0;
+	}
+}
+
+void read_batch_flist_info(struct file_struct **fptr)
+{
+	int int_str_len;
+	char char_str_len[4];
+	char buff[256];
+	struct file_struct *file;
+
+	file = (struct file_struct *) malloc(sizeof(*file));
+	if (!file)
+		out_of_memory("read_batch_flist_info");
+	memset((char *) file, 0, sizeof(*file));
+
+	(*fptr) = file;
+
+	read_batch_flist_file((char *) &file->modtime, sizeof(time_t));
+	read_batch_flist_file((char *) &file->length, sizeof(OFF_T));
+	read_batch_flist_file((char *) &file->mode, sizeof(mode_t));
+	read_batch_flist_file((char *) &file->inode, sizeof(INO64_T));
+	read_batch_flist_file((char *) &file->dev, sizeof(DEV64_T));
+	read_batch_flist_file((char *) &file->rdev, sizeof(DEV64_T));
+	read_batch_flist_file((char *) &file->uid, sizeof(uid_t));
+	read_batch_flist_file((char *) &file->gid, sizeof(gid_t));
+	read_batch_flist_file(char_str_len, sizeof(char_str_len));
+	int_str_len = IVAL(char_str_len, 0);
+	if (int_str_len > 0) {
+		read_batch_flist_file(buff, int_str_len);
+		buff[int_str_len] = '\0';
+		file->basename = strdup(buff);
+	} else {
+		file->basename = NULL;
+	}
+
+	read_batch_flist_file(char_str_len, sizeof(char_str_len));
+	int_str_len = IVAL(char_str_len, 0);
+	if (int_str_len > 0) {
+		read_batch_flist_file(buff, int_str_len);
+		buff[int_str_len] = '\0';
+		file[0].dirname = strdup(buff);
+	} else {
+		file[0].dirname = NULL;
+	}
+
+	read_batch_flist_file(char_str_len, sizeof(char_str_len));
+	int_str_len = IVAL(char_str_len, 0);
+	if (int_str_len > 0) {
+		read_batch_flist_file(buff, int_str_len);
+		buff[int_str_len] = '\0';
+		file[0].basedir = strdup(buff);
+	} else {
+		file[0].basedir = NULL;
+	}
+
+	read_batch_flist_file(char_str_len, sizeof(char_str_len));
+	int_str_len = IVAL(char_str_len, 0);
+	if (int_str_len > 0) {
+		read_batch_flist_file(buff, int_str_len);
+		buff[int_str_len] = '\0';
+		file[0].link = strdup(buff);
+	} else {
+		file[0].link = NULL;
+	}
+
+	read_batch_flist_file(char_str_len, sizeof(char_str_len));
+	int_str_len = IVAL(char_str_len, 0);
+	if (int_str_len > 0) {
+		read_batch_flist_file(buff, int_str_len);
+		buff[int_str_len] = '\0';
+		file[0].sum = strdup(buff);
+	} else {
+		file[0].sum = NULL;
+	}
+}
+
+void write_batch_csums_file(void *buff, int bytes_to_write)
+{
+
+	static int fdb_open = 1;
+
+	if (fdb_open) {
+		/* Set up file extension */
+		strcat(rsync_csums_file, batch_file_ext);
+
+		/* Open batch csums file for writing; create it if it doesn't exist */
+		fdb =
+		    do_open(rsync_csums_file, O_WRONLY | O_CREAT | O_TRUNC,
+			    S_IREAD | S_IWRITE);
+		if (fdb == -1) {
+			rprintf(FERROR, "Batch file %s open error: %s\n",
+				rsync_csums_file, strerror(errno));
+			close(fdb);
+			exit_cleanup(1);
+		}
+		fdb_open = 0;
+	}
+
+	/* Write buffer to batch csums file */
+
+	if (write(fdb, buff, bytes_to_write) == -1) {
+		rprintf(FERROR, "Batch file %s write error: %s\n",
+			rsync_csums_file, strerror(errno));
+		close(fdb);
+		exit_cleanup(1);
+	}
+}
+
+void close_batch_csums_file()
+{
+	close(fdb);
+
+}
+
+void write_batch_csum_info(int *flist_entry, int flist_count,
+			   struct sum_struct *s)
+{
+	size_t i;
+	unsigned int int_zero = 0;
+	extern int csum_length;
+
+	fdb_open = 1;
+
+	/* Write csum info to batch file */
+
+	/* FIXME: This will break if s->count is ever not exactly an int. */
+	write_batch_csums_file(flist_entry, sizeof(int));
+	if (s)
+		write_batch_csums_file(&s->count, sizeof(int));
+	else
+		write_batch_csums_file(&int_zero, sizeof (int));
+	
+	if (s) {
+		for (i = 0; i < s->count; i++) {
+			write_batch_csums_file(&s->sums[i].sum1, sizeof(uint32));
+			if ((*flist_entry == flist_count - 1)
+			    && (i == s->count - 1)) {
+				fdb_close = 1;
+			}
+			write_batch_csums_file(s->sums[i].sum2,
+					       csum_length);
+		}
+	}
+}
+
+int read_batch_csums_file(char *buff, int len)
+{
+	static int fdb_open = 1;
+	int bytes_read;
+
+	if (fdb_open) {
+
+		/*  Set up file extension  */
+		strcat(rsync_csums_file, batch_file_ext);
+
+		/* Open batch flist file for reading */
+		fdb = do_open(rsync_csums_file, O_RDONLY, 0);
+		if (fdb == -1) {
+			rprintf(FERROR, "Batch file %s open error: %s\n",
+				rsync_csums_file, strerror(errno));
+			close(fdb);
+			exit_cleanup(1);
+		}
+		fdb_open = 0;
+	}
+
+	/* Read csums batch file */
+
+	bytes_read = read(fdb, buff, len);
+
+	if (bytes_read == -1) {
+		rprintf(FERROR, "Batch file %s read error: %s\n",
+			rsync_csums_file, strerror(errno));
+		close(fdb);
+		exit_cleanup(1);
+	}
+	return bytes_read;
+}
+
+
+void read_batch_csum_info(int flist_entry, struct sum_struct *s,
+			  int *checksums_match)
+{
+	int i;
+	int file_flist_entry;
+	int file_chunk_ct;
+	uint32 file_sum1;
+	char file_sum2[SUM_LENGTH];
+	extern int csum_length;
+
+
+	read_batch_csums_file((char *) &file_flist_entry, sizeof(int));
+	if (file_flist_entry != flist_entry) {
+		rprintf(FINFO, "file_list_entry NE flist_entry\n");
+		rprintf(FINFO, "file_flist_entry = %d  flist_entry = %d\n",
+			file_flist_entry, flist_entry);
+		close(fdb);
+		exit_cleanup(1);
+
+	} else {
+		read_batch_csums_file((char *) &file_chunk_ct,
+				      sizeof(int));
+		*checksums_match = 1;
+		for (i = 0; i < file_chunk_ct; i++) {
+
+			read_batch_csums_file((char *) &file_sum1,
+					      sizeof(uint32));
+			read_batch_csums_file(file_sum2, csum_length);
+
+			if ((s->sums[i].sum1 != file_sum1) ||
+			    (memcmp
+			     (s->sums[i].sum2, file_sum2,
+			      csum_length) != 0)) {
+				*checksums_match = 0;
+			}
+		}		/*  end for  */
+	}
+
+}
+
+void write_batch_delta_file(char *buff, int bytes_to_write)
+{
+	static int fdb_delta_open = 1;
+
+	if (fdb_delta_open) {
+		/* Set up file extension */
+		strcat(rsync_delta_file, batch_file_ext);
+
+		/* Open batch delta file for writing; create it if it doesn't exist */
+		fdb_delta =
+		    do_open(rsync_delta_file, O_WRONLY | O_CREAT | O_TRUNC,
+			    S_IREAD | S_IWRITE);
+		if (fdb_delta == -1) {
+			rprintf(FERROR, "Batch file %s open error: %s\n",
+				rsync_delta_file, strerror(errno));
+			close(fdb_delta);
+			exit_cleanup(1);
+		}
+		fdb_delta_open = 0;
+	}
+
+	/* Write buffer to batch delta file */
+
+	if (write(fdb_delta, buff, bytes_to_write) == -1) {
+		rprintf(FERROR, "Batch file %s write error: %s\n",
+			rsync_delta_file, strerror(errno));
+		close(fdb_delta);
+		exit_cleanup(1);
+	}
+}
+void close_batch_delta_file()
+{
+	close(fdb_delta);
+
+}
+
+int read_batch_delta_file(char *buff, int len)
+{
+	static int fdb_delta_open = 1;
+	int bytes_read;
+
+	if (fdb_delta_open) {
+
+		/*  Set up file extension  */
+		strcat(rsync_delta_file, batch_file_ext);
+
+		/* Open batch flist file for reading */
+		fdb_delta = do_open(rsync_delta_file, O_RDONLY, 0);
+		if (fdb_delta == -1) {
+			rprintf(FERROR, "Batch file %s open error: %s\n",
+				rsync_delta_file, strerror(errno));
+			close(fdb_delta);
+			exit_cleanup(1);
+		}
+		fdb_delta_open = 0;
+	}
+
+	/* Read delta batch file */
+
+	bytes_read = read(fdb_delta, buff, len);
+
+	if (bytes_read == -1) {
+		rprintf(FERROR, "Batch file %s read error: %s\n",
+			rsync_delta_file, strerror(errno));
+		close(fdb_delta);
+		exit_cleanup(1);
+	}
+	return bytes_read;
+}
+
+
+void show_flist(int index, struct file_struct **fptr)
+{
+	/*  for debugging    show_flist(flist->count, flist->files * */
+
+	int i;
+	for (i = 0; i < index; i++) {
+		rprintf(FINFO, "flist->flags=%#x\n", fptr[i]->flags);
+		rprintf(FINFO, "flist->modtime=%#lx\n",
+			(long unsigned) fptr[i]->modtime);
+		rprintf(FINFO, "flist->length=%.0f\n",
+			(double) fptr[i]->length);
+		rprintf(FINFO, "flist->mode=%#o\n", (int) fptr[i]->mode);
+		rprintf(FINFO, "flist->basename=%s\n", fptr[i]->basename);
+		if (fptr[i]->dirname)
+			rprintf(FINFO, "flist->dirname=%s\n",
+				fptr[i]->dirname);
+		if (fptr[i]->basedir)
+			rprintf(FINFO, "flist->basedir=%s\n",
+				fptr[i]->basedir);
+	}
+}
+
+void show_argvs(int argc, char *argv[])
+{
+	/*  for debugging  * */
+
+	int i;
+	rprintf(FINFO, "BATCH.C:show_argvs,argc=%d\n", argc);
+	for (i = 0; i < argc; i++) {
+		/*    if (argv[i])   */
+		rprintf(FINFO, "i=%d,argv[i]=%s\n", i, argv[i]);
+
+	}
+}
--- a/cleanup.c
+++ b/cleanup.c
@@ -1,5 +1,6 @@
-/* 
-   Copyright (C) Andrew Tridgell 1996
+/* -*- c-file-style: "linux" -*-
+   
+   Copyright (C) 1996-2000 by Andrew Tridgell
   Copyright (C) Paul Mackerras 1996
   
   This program is free software; you can redistribute it and/or modify
@@ -32,15 +33,27 @@ static struct map_struct *cleanup_buf;
 static int cleanup_pid = 0;
 extern int io_error;

+pid_t cleanup_child_pid = -1;
+
+/*
+ * Code is one of the RERR_* codes from errcode.h.
+ */
 void _exit_cleanup(int code, const char *file, int line)
 {
 	extern int keep_partial;
-
-	if (code == 0 && io_error) code = RERR_FILEIO;
+	extern int log_got_error;

 	signal(SIGUSR1, SIG_IGN);
 	signal(SIGUSR2, SIG_IGN);

+	if (cleanup_child_pid != -1) {
+		int status;
+		if (waitpid(cleanup_child_pid, &status, WNOHANG) == cleanup_child_pid) {
+			status = WEXITSTATUS(status);
+			if (status > code) code = status;
+		}
+	}
+
 	if (cleanup_got_literal && cleanup_fname && keep_partial) {
 		char *fname = cleanup_fname;
 		cleanup_fname = NULL;
@@ -62,6 +75,10 @@ void _exit_cleanup(int code, const char *file, int line)
 		}
 	}

+	if (code == 0 && (io_error || log_got_error)) {
+		code = RERR_PARTIAL;
+	}
+
 	if (code) log_exit(code, file, line);

 	exit(code);
--- a/clientname.c
+++ b/clientname.c
@@ -0,0 +1,283 @@
+/* -*- c-file-style: "linux" -*-
+   
+   rsync -- fast file replication program
+   
+   Copyright (C) 1992-2001 by Andrew Tridgell <tridge@samba.org>
+   Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/**
+ * @file clientname.c
+ * 
+ * Functions for looking up the remote name or addr of a socket.
+ *
+ * This file is now converted to use the new-style getaddrinfo()
+ * interface, which supports IPv6 but is also supported on recent
+ * IPv4-only machines.  On systems that don't have that interface, we
+ * emulate it using the KAME implementation.
+ **/
+
+#include "rsync.h"
+
+static const char default_name[] = "UNKNOWN";
+
+
+/**
+ * Return the IP addr of the client as a string 
+ **/
+char *client_addr(int fd)
+{
+	struct sockaddr_storage ss;
+	socklen_t length = sizeof ss;
+	static char addr_buf[100];
+	static int initialised;
+
+	if (initialised) return addr_buf;
+
+	initialised = 1;
+
+	client_sockaddr(fd, &ss, &length);
+
+	getnameinfo((struct sockaddr *)&ss, length,
+		    addr_buf, sizeof(addr_buf), NULL, 0, NI_NUMERICHOST);
+	
+	return addr_buf;
+}
+
+
+static int get_sockaddr_family(const struct sockaddr_storage *ss)
+{
+	return ((struct sockaddr *) ss)->sa_family;
+}
+
+
+/**
+ * Return the DNS name of the client.
+ *
+ * The name is statically cached so that repeated lookups are quick,
+ * so there is a limit of one lookup per customer.
+ *
+ * If anything goes wrong, including the name->addr->name check, then
+ * we just use "UNKNOWN", so you can use that value in hosts allow
+ * lines.
+ **/
+char *client_name(int fd)
+{
+	struct sockaddr_storage ss;
+	socklen_t ss_len = sizeof ss;
+	static char name_buf[100];
+	static char port_buf[100];
+	static int initialised;
+
+	if (initialised) return name_buf;
+
+	strcpy(name_buf, default_name);
+	initialised = 1;
+
+	client_sockaddr(fd, &ss, &ss_len);
+
+	if (!lookup_name(fd, &ss, ss_len, name_buf, sizeof name_buf, port_buf, sizeof port_buf))
+		check_name(fd, &ss, ss_len, name_buf, port_buf);
+
+	return name_buf;
+}
+
+
+
+/**
+ * Get the sockaddr for the client.
+ *
+ * If it comes in as an ipv4 address mapped into IPv6 format then we
+ * convert it back to a regular IPv4.
+ **/
+void client_sockaddr(int fd,
+		     struct sockaddr_storage *ss,
+		     socklen_t *ss_len)
+{
+	if (getpeername(fd, (struct sockaddr *) ss, ss_len)) {
+		/* FIXME: Can we really not continue? */
+		rprintf(FERROR, RSYNC_NAME ": getpeername on fd%d failed: %s\n",
+			fd, strerror(errno));
+		exit_cleanup(RERR_SOCKETIO);
+	}
+
+#ifdef INET6
+        if (get_sockaddr_family(ss) == AF_INET6 && 
+	    IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)ss)->sin6_addr)) {
+		/* OK, so ss is in the IPv6 family, but it is really
+		 * an IPv4 address: something like
+		 * "::ffff:10.130.1.2".  If we use it as-is, then the
+		 * reverse lookup might fail or perhaps something else
+		 * bad might happen.  So instead we convert it to an
+		 * equivalent address in the IPv4 address family.  */
+		struct sockaddr_in6 sin6;
+		struct sockaddr_in *sin;
+
+		memcpy(&sin6, ss, sizeof(sin6));
+		sin = (struct sockaddr_in *)ss;
+		memset(sin, 0, sizeof(*sin));
+		sin->sin_family = AF_INET;
+		*ss_len = sizeof(struct sockaddr_in);
+#ifdef HAVE_SOCKADDR_LEN
+		sin->sin_len = *ss_len;
+#endif
+		sin->sin_port = sin6.sin6_port;
+
+		/* There is a macro to extract the mapped part
+		 * (IN6_V4MAPPED_TO_SINADDR ?), but it does not seem
+		 * to be present in the Linux headers. */
+		memcpy(&sin->sin_addr, &sin6.sin6_addr.s6_addr[12],
+			sizeof(sin->sin_addr));
+        }
+#endif
+}
+
+
+/**
+ * Look up a name from @p ss into @p name_buf.
+ **/
+int lookup_name(int fd, const struct sockaddr_storage *ss,
+		socklen_t ss_len,
+		char *name_buf, size_t name_buf_len,
+		char *port_buf, size_t port_buf_len)
+{
+	int name_err;
+	
+	/* reverse lookup */
+	name_err = getnameinfo((struct sockaddr *) ss, ss_len,
+			       name_buf, name_buf_len,
+			       port_buf, port_buf_len,
+			       NI_NAMEREQD | NI_NUMERICSERV);
+	if (name_err != 0) {
+		strcpy(name_buf, default_name);
+		rprintf(FERROR, RSYNC_NAME ": name lookup failed for %s: %s\n",
+			client_addr(fd),
+			gai_strerror(name_err));
+		return name_err;
+	}
+
+	return 0;
+}
+
+
+
+/**
+ * Compare an addrinfo from the resolver to a sockinfo.
+ *
+ * Like strcmp, returns 0 for identical.
+ **/
+int compare_addrinfo_sockaddr(const struct addrinfo *ai,
+			      const struct sockaddr_storage *ss)
+{
+	int ss_family = get_sockaddr_family(ss);
+	const char fn[] = "compare_addrinfo_sockaddr";
+		      
+	if (ai->ai_family != ss_family) {
+		rprintf(FERROR,
+			"%s: response family %d != %d\n",
+			fn, ai->ai_family, ss_family);
+		return 1;
+	}
+
+	/* The comparison method depends on the particular AF. */
+	if (ss_family == AF_INET) {
+		const struct sockaddr_in *sin1, *sin2;
+
+		sin1 = (const struct sockaddr_in *) ss;
+		sin2 = (const struct sockaddr_in *) ai->ai_addr;
+		
+		return memcmp(&sin1->sin_addr, &sin2->sin_addr,
+			      sizeof sin1->sin_addr);
+	}
+#ifdef INET6
+	else if (ss_family == AF_INET6) {
+		const struct sockaddr_in6 *sin1, *sin2;
+
+		sin1 = (const struct sockaddr_in6 *) ss;
+		sin2 = (const struct sockaddr_in6 *) ai->ai_addr;
+		
+		return memcmp(&sin1->sin6_addr, &sin2->sin6_addr,
+			      sizeof sin1->sin6_addr);
+	}
+#endif /* INET6 */
+	else {
+		/* don't know */
+		return 1;
+	}
+}
+
+
+/**
+ * Do a forward lookup on @p name_buf and make sure it corresponds to
+ * @p ss -- otherwise we may be being spoofed.  If we suspect we are,
+ * then we don't abort the connection but just emit a warning, and
+ * change @p name_buf to be "UNKNOWN".
+ **/
+int check_name(int fd,
+	       const struct sockaddr_storage *ss,
+	       socklen_t ss_len,
+	       char *name_buf,
+	       const char *port_buf)
+{
+	struct addrinfo hints, *res, *res0;
+	int error;
+	int ss_family = get_sockaddr_family(ss);
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = ss_family;
+	hints.ai_flags = AI_CANONNAME;
+	hints.ai_socktype = SOCK_STREAM;
+	error = getaddrinfo(name_buf, port_buf, &hints, &res0);
+	if (error) {
+		rprintf(FERROR,
+			RSYNC_NAME ": forward name lookup for %s failed: %s\n",
+			name_buf, gai_strerror(error));
+		strcpy(name_buf, default_name);
+		return error;
+	}
+
+
+	/* Given all these results, we expect that one of them will be
+	 * the same as ss.  The comparison is a bit complicated. */
+	for (res = res0; res; res = res->ai_next) {
+		if (!compare_addrinfo_sockaddr(res, ss))
+			break;	/* OK, identical */
+	}
+
+	if (!res0) {
+		/* We hit the end of the list without finding an
+		 * address that was the same as ss. */
+		rprintf(FERROR, RSYNC_NAME
+			": no known address for \"%s\": "
+			"spoofed address?\n",
+			name_buf);
+		strcpy(name_buf, default_name);
+	} else if (res == NULL) {
+		/* We hit the end of the list without finding an
+		 * address that was the same as ss. */
+		rprintf(FERROR, RSYNC_NAME
+			": %s is not a known address for \"%s\": "
+			"spoofed address?\n",
+			client_addr(fd),
+			name_buf);
+		strcpy(name_buf, default_name);
+	}
+
+	freeaddrinfo(res0);
+	return 0;
+}
+
--- a/clientserver.c
+++ b/clientserver.c
@@ -1,5 +1,7 @@
-/* 
-   Copyright (C) Andrew Tridgell 1998
+/* -*- c-file-style: "linux"; -*-
+   
+   Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
+   Copyright (C) 2001 by Martin Pool <mbp@samba.org>
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -16,7 +18,7 @@
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

-/* the socket based protocol for setting up a connection wit rsyncd */
+/* the socket based protocol for setting up a connection with rsyncd */

 #include "rsync.h"

@@ -27,6 +29,10 @@ extern int rsync_port;
 char *auth_user;
 int sanitize_paths = 0;

+/*
+ * Run a client connected to an rsyncd.  The alternative to this
+ * function for remote-shell connections is do_cmd.
+ */
 int start_socket_client(char *host, char *path, int argc, char *argv[])
 {
 	int fd, i;
@@ -36,10 +42,30 @@ int start_socket_client(char *host, char *path, int argc, char *argv[])
 	char *p, *user=NULL;
 	extern int remote_version;
 	extern int am_sender;
-	extern struct in_addr socket_address;
+	extern char *shell_cmd;
+	extern int kludge_around_eof;
+	extern char *bind_address;
+	extern int default_af_hint;
+       
+	if (argc == 0 && !am_sender) {
+		extern int list_only;
+		list_only = 1;
+	}

+        /* This is just a friendliness enhancement: if the connection
+         * is to an rsyncd then there is no point specifying the -e option.
+         * Note that this is only set if the -e was explicitly specified,
+         * not if the environment variable just happens to be set.
+         * See http://lists.samba.org/pipermail/rsync/2000-September/002744.html
+         */
+        if (shell_cmd) {
+                rprintf(FERROR, "WARNING: --rsh or -e option ignored when "
+                        "connecting to rsync daemon\n");
+                /* continue */
+        }
+        
 	if (*path == '/') {
-		rprintf(FERROR,"ERROR: The remote path must start with a module name\n");
+		rprintf(FERROR,"ERROR: The remote path must start with a module name not a /\n");
 		return -1;
 	}

@@ -53,7 +79,8 @@ int start_socket_client(char *host, char *path, int argc, char *argv[])
 	if (!user) user = getenv("USER");
 	if (!user) user = getenv("LOGNAME");

-	fd = open_socket_out(host, rsync_port, &socket_address);
+	fd = open_socket_out_wrapped (host, rsync_port, bind_address,
+				      default_af_hint);
 	if (fd == -1) {
 		exit_cleanup(RERR_SOCKETIO);
 	}
@@ -82,6 +109,10 @@ int start_socket_client(char *host, char *path, int argc, char *argv[])
 	io_printf(fd,"%s\n",path);
 	if (p) *p = '/';

+	/* Old servers may just drop the connection here,
+	 rather than sending a proper EXIT command.  Yuck. */
+	kludge_around_eof = remote_version < 25;
+
 	while (1) {
 		if (!read_line(fd, line, sizeof(line)-1)) {
 			return -1;
@@ -93,8 +124,12 @@ int start_socket_client(char *host, char *path, int argc, char *argv[])
 		}

 		if (strcmp(line,"@RSYNCD: OK") == 0) break;
+
+		if (strcmp(line,"@RSYNCD: EXIT") == 0) exit(0);
+
 		rprintf(FINFO,"%s\n", line);
 	}
+	kludge_around_eof = False;

 	for (i=0;i<sargc;i++) {
 		io_printf(fd,"%s\n", sargs[i]);
@@ -117,7 +152,7 @@ static int rsync_module(int fd, int i)
 	char *argv[MAX_ARGS];
 	char **argp;
 	char line[MAXPATHLEN];
-	uid_t uid = (uid_t)-2;
+	uid_t uid = (uid_t)-2;  /* canonically "nobody" */
 	gid_t gid = (gid_t)-2;
 	char *p;
 	char *addr = client_addr(fd);
@@ -133,9 +168,9 @@ static int rsync_module(int fd, int i)

 	if (!allow_access(addr, host, lp_hosts_allow(i), lp_hosts_deny(i))) {
 		rprintf(FERROR,"rsync denied on module %s from %s (%s)\n",
-			name, client_name(fd), client_addr(fd));
+			name, host, addr);
 		io_printf(fd,"@ERROR: access denied to %s from %s (%s)\n",
-			  name, client_name(fd), client_addr(fd));
+			  name, host, addr);
 		return -1;
 	}

@@ -172,7 +207,7 @@ static int rsync_module(int fd, int i)
 		if (!name_to_uid(p, &uid)) {
 			if (!isdigit(*p)) {
 				rprintf(FERROR,"Invalid uid %s\n", p);
-				io_printf(fd,"@ERROR: invalid uid\n");
+				io_printf(fd,"@ERROR: invalid uid %s\n", p);
 				return -1;
 			} 
 			uid = atoi(p);
@@ -182,12 +217,19 @@ static int rsync_module(int fd, int i)
 		if (!name_to_gid(p, &gid)) {
 			if (!isdigit(*p)) {
 				rprintf(FERROR,"Invalid gid %s\n", p);
-				io_printf(fd,"@ERROR: invalid gid\n");
+				io_printf(fd,"@ERROR: invalid gid %s\n", p);
 				return -1;
 			} 
 			gid = atoi(p);
 		}
 	}
+        
+        /* TODO: If we're not root, but the configuration requests
+         * that we change to some uid other than the current one, then
+         * log a warning. */
+
+        /* TODO: Perhaps take a list of gids, and make them into the
+         * supplementary groups. */

 	p = lp_include_from(i);
 	add_exclude_file(p, 1, 1);
@@ -201,24 +243,36 @@ static int rsync_module(int fd, int i)
 	p = lp_exclude(i);
 	add_exclude_line(p);

-	log_open();
+	log_init();

 	if (use_chroot) {
+		/*
+		 * XXX: The 'use chroot' flag is a fairly reliable
+		 * source of confusion, because it fails under two
+		 * important circumstances: running as non-root,
+		 * running on Win32 (or possibly others).  On the
+		 * other hand, if you are running as root, then it
+		 * might be better to always use chroot.
+		 *
+		 * So, perhaps if we can't chroot we should just issue
+		 * a warning, unless a "require chroot" flag is set,
+		 * in which case we fail.
+		 */
 		if (chroot(lp_path(i))) {
-			rprintf(FERROR,"chroot %s failed\n", lp_path(i));
+			rsyserr(FERROR, errno, "chroot %s failed", lp_path(i));
 			io_printf(fd,"@ERROR: chroot failed\n");
 			return -1;
 		}

 		if (!push_dir("/", 0)) {
-			rprintf(FERROR,"chdir %s failed\n", lp_path(i));
+                        rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i));
 			io_printf(fd,"@ERROR: chdir failed\n");
 			return -1;
 		}

 	} else {
 		if (!push_dir(lp_path(i), 0)) {
-			rprintf(FERROR,"chdir %s failed\n", lp_path(i));
+			rsyserr(FERROR, errno, "chdir %s failed\n", lp_path(i));
 			io_printf(fd,"@ERROR: chdir failed\n");
 			return -1;
 		}
@@ -227,13 +281,13 @@ static int rsync_module(int fd, int i)

 	if (am_root) {
 		if (setgid(gid)) {
-			rprintf(FERROR,"setgid %d failed\n", gid);
+			rsyserr(FERROR, errno, "setgid %d failed", (int) gid);
 			io_printf(fd,"@ERROR: setgid failed\n");
 			return -1;
 		}

 		if (setuid(uid)) {
-			rprintf(FERROR,"setuid %d failed\n", uid);
+			rsyserr(FERROR, errno, "setuid %d failed", (int) uid);
 			io_printf(fd,"@ERROR: setuid failed\n");
 			return -1;
 		}
@@ -291,7 +345,8 @@ static int rsync_module(int fd, int i)
 		}
 	}

-	ret = parse_arguments(argc, argv, 0);
+        argp = argv;
+	ret = parse_arguments(&argc, (const char ***) &argp, 0);

 	if (request) {
 		if (*auth_user) {
@@ -306,22 +361,27 @@ static int rsync_module(int fd, int i)
 		free(request);
 	}

-#if !TRIDGE
+#ifndef DEBUG
 	/* don't allow the logs to be flooded too fast */
 	if (verbose > 1) verbose = 1;
 #endif

-	argc -= optind;
-	argp = argv + optind;
-	optind = 0;
-
 	if (remote_version < 23) {
 		if (remote_version == 22 || (remote_version > 17 && am_sender))
 			io_start_multiplex_out(fd);
 	}
+        
+        /* For later protocol versions, we don't start multiplexing
+         * until we've configured nonblocking in start_server.  That
+         * means we're in a sticky situation now: there's no way to
+         * convey errors to the client. */

+        /* FIXME: Hold off on reporting option processing errors until
+         * we've set up nonblocking and multiplexed IO and can get the
+         * message back to them. */
 	if (!ret) {
-		option_error();
+                option_error();
+                exit_cleanup(RERR_UNSUPPORTED);
 	}

 	if (lp_timeout(i)) {
@@ -340,10 +400,14 @@ static void send_listing(int fd)
 {
 	int n = lp_numservices();
 	int i;
-	
+	extern int remote_version;
+
 	for (i=0;i<n;i++)
 		if (lp_list(i))
 		    io_printf(fd, "%-15s\t%s\n", lp_name(i), lp_comment(i));
+
+	if (remote_version >= 25)
+		io_printf(fd,"@RSYNCD: EXIT\n");
 }

 /* this is called when a socket connection is established to a client
@@ -363,7 +427,7 @@ static int start_daemon(int fd)

 	set_socket_options(fd,"SO_KEEPALIVE");
 	set_socket_options(fd,lp_socket_options());
-	
+	set_nonblocking(fd);

 	io_printf(fd,"@RSYNCD: %d\n", PROTOCOL_VERSION);

@@ -423,6 +487,7 @@ int daemon_main(void)
 	extern char *config_file;
 	extern int orig_umask;
 	char *pid_file;
+	extern int no_detach;

 	if (is_a_socket(STDIN_FILENO)) {
 		int i;
@@ -438,15 +503,21 @@ int daemon_main(void)
 		return start_daemon(STDIN_FILENO);
 	}

-	become_daemon();
+	if (!no_detach)
+	    become_daemon();

 	if (!lp_load(config_file, 1)) {
 		exit_cleanup(RERR_SYNTAX);
 	}

-	log_open();
+	log_init();

-	rprintf(FINFO,"rsyncd version %s starting\n",VERSION);
+	rprintf(FINFO, "rsyncd version %s starting, listening on port %d\n",
+		RSYNC_VERSION,
+                rsync_port);
+        /* TODO: If listening on a particular address, then show that
+         * address too.  In fact, why not just do inet_ntop on the
+         * local address??? */

 	if (((pid_file = lp_pid_file()) != NULL) && (*pid_file != '\0')) {
 		char pidbuf[16];
@@ -456,10 +527,10 @@ int daemon_main(void)
 		if ((fd = do_open(lp_pid_file(), O_WRONLY|O_CREAT|O_TRUNC,
 					0666 & ~orig_umask)) == -1) {
 		    cleanup_set_pid(0);
-		    rprintf(FLOG,"failed to create pid file %s\n", pid_file);
+		    rsyserr(FLOG, errno, "failed to create pid file %s", pid_file);
 		    exit_cleanup(RERR_FILEIO);
 		}
-		slprintf(pidbuf, sizeof(pidbuf), "%d\n", pid);
+		snprintf(pidbuf, sizeof(pidbuf), "%d\n", pid);
 		write(fd, pidbuf, strlen(pidbuf));
 		close(fd);
 	}
--- a/compat.c
+++ b/compat.c
@@ -36,6 +36,9 @@ extern int checksum_seed;
 extern int remote_version;
 extern int verbose;

+extern int read_batch;  /* dw */
+extern int write_batch;  /* dw */
+
 void setup_protocol(int f_out,int f_in)
 {
 	if (remote_version == 0) {
@@ -55,12 +58,11 @@ void setup_protocol(int f_out,int f_in)
 		exit_cleanup(RERR_PROTOCOL);
 	}	
 	
-	if (verbose > 2)
-		rprintf(FINFO, "local_version=%d remote_version=%d\n",
-			PROTOCOL_VERSION, remote_version);
-	
 	if (remote_version >= 12) {
 		if (am_server) {
+		    if (read_batch || write_batch) /* dw */
+			checksum_seed = 32761;
+		    else
 			checksum_seed = time(NULL);
 			write_int(f_out,checksum_seed);
 		} else {
--- a/config.guess
+++ b/config.guess
--- a/config.sub
+++ b/config.sub
@@ -1,6 +1,10 @@
 #! /bin/sh
-# Configuration validation subroutine script, version 1.1.
-#   Copyright (C) 1991, 92-97, 1998 Free Software Foundation, Inc.
+# Configuration validation subroutine script.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+#   Free Software Foundation, Inc.
+
+timestamp='2001-06-08'
+
 # This file is (in principle) common to ALL GNU software.
 # The presence of a machine in this file suggests that SOME GNU software
 # can handle that machine.  It does not imply ALL GNU software can.
@@ -25,6 +29,8 @@
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.

+# Please send patches to <config-patches@gnu.org>.
+#
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
 # If it is invalid, we print an error message on stderr and exit with code 1.
@@ -45,30 +51,73 @@
 #	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
 # It is wrong to echo any other type of specification.

-if [ x$1 = x ]
-then
-	echo Configuration name missing. 1>&2
-	echo "Usage: $0 CPU-MFR-OPSYS" 1>&2
-	echo "or     $0 ALIAS" 1>&2
-	echo where ALIAS is a recognized configuration type. 1>&2
-	exit 1
-fi
+me=`echo "$0" | sed -e 's,.*/,,'`

-# First pass through any local machine types.
-case $1 in
-	*local*)
-		echo $1
-		exit 0
-		;;
-	*)
-	;;
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit 0 ;;
+    --version | -v )
+       echo "$version" ; exit 0 ;;
+    --help | --h* | -h )
+       echo "$usage"; exit 0 ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit 0;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
 esac

 # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  linux-gnu*)
+  nto-qnx* | linux-gnu* | storm-chaos* | os2-emx* | windows32-*)
    os=-$maybe_os
    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
    ;;
@@ -94,15 +143,33 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple)
+	-apple | -axis)
 		os=
 		basic_machine=$1
 		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+ 	-chorusrdb)
+ 		os=-chorusrdb
+		basic_machine=$1
+ 		;;
 	-hiux*)
 		os=-hiuxwe2
 		;;
 	-sco5)
-		os=sco3.2v5
+		os=-sco3.2v5
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
 	-sco4)
@@ -121,6 +188,9 @@ case $os in
 		os=-sco3.2v2
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
+	-udk*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
 	-isc)
 		os=-isc2.2
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
@@ -143,26 +213,50 @@ case $os in
 	-psos*)
 		os=-psos
 		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
 esac

 # Decode aliases for certain CPU-COMPANY combinations.
 case $basic_machine in
 	# Recognize the basic CPU types without company name.
 	# Some are omitted here because they have special meanings below.
-	tahoe | i860 | m32r | m68k | m68000 | m88k | ns32k | arc | arm \
-		| arme[lb] | pyramid | mn10200 | mn10300 | tron | a29k \
-		| 580 | i960 | h8300 | hppa | hppa1.0 | hppa1.1 | hppa2.0 \
-		| alpha | alphaev5 | alphaev56 | we32k | ns16k | clipper \
-		| i370 | sh | powerpc | powerpcle | 1750a | dsp16xx | pdp11 \
-		| mips64 | mipsel | mips64el | mips64orion | mips64orionel \
-		| mipstx39 | mipstx39el \
-		| sparc | sparclet | sparclite | sparc64 | v850)
+	tahoe | i860 | ia64 | m32r | m68k | m68000 | m88k | ns32k | arc \
+	        | arm | arme[lb] | arm[bl]e | armv[2345] | armv[345][lb] | strongarm | xscale \
+		| pyramid | mn10200 | mn10300 | tron | a29k \
+		| 580 | i960 | h8300 \
+		| x86 | ppcbe | mipsbe | mipsle | shbe | shle \
+		| hppa | hppa1.0 | hppa1.1 | hppa2.0 | hppa2.0w | hppa2.0n \
+		| hppa64 \
+		| alpha | alphaev[4-8] | alphaev56 | alphapca5[67] \
+		| alphaev6[78] \
+		| we32k | ns16k | clipper | i370 | sh | sh[34] \
+		| powerpc | powerpcle \
+		| 1750a | dsp16xx | pdp10 | pdp11 \
+		| mips16 | mips64 | mipsel | mips64el \
+		| mips64orion | mips64orionel | mipstx39 | mipstx39el \
+		| mips64vr4300 | mips64vr4300el | mips64vr4100 | mips64vr4100el \
+		| mips64vr5000 | mips64vr5000el | mcore | s390 | s390x \
+		| sparc | sparclet | sparclite | sparc64 | sparcv9 | sparcv9b \
+		| v850 | c4x \
+		| thumb | d10v | d30v | fr30 | avr | openrisc | tic80 \
+		| pj | pjl | h8500 | z8k)
 		basic_machine=$basic_machine-unknown
 		;;
+	m6811 | m68hc11 | m6812 | m68hc12)
+		# Motorola 68HC11/12.
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+		;;
+
 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
-	i[34567]86)
+	i*86 | x86_64)
 	  basic_machine=$basic_machine-pc
 	  ;;
 	# Object if more than one company name word.
@@ -171,27 +265,52 @@ case $basic_machine in
 		exit 1
 		;;
 	# Recognize the basic CPU types with company name.
-	vax-* | tahoe-* | i[34567]86-* | i860-* | m32r-* | m68k-* | m68000-* \
-	      | m88k-* | sparc-* | ns32k-* | fx80-* | arc-* | arm-* | c[123]* \
+	# FIXME: clean up the formatting here.
+	vax-* | tahoe-* | i*86-* | i860-* | ia64-* | m32r-* | m68k-* | m68000-* \
+	      | m88k-* | sparc-* | ns32k-* | fx80-* | arc-* | c[123]* \
+	      | arm-*  | armbe-* | armle-* | armv*-* | strongarm-* | xscale-* \
 	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
-	      | power-* | none-* | 580-* | cray2-* | h8300-* | i960-* \
-	      | xmp-* | ymp-* | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* \
-	      | alpha-* | alphaev5-* | alphaev56-* | we32k-* | cydra-* \
-	      | ns16k-* | pn-* | np1-* | xps100-* | clipper-* | orion-* \
-	      | sparclite-* | pdp11-* | sh-* | powerpc-* | powerpcle-* \
-	      | sparc64-* | mips64-* | mipsel-* \
-	      | mips64el-* | mips64orion-* | mips64orionel-*  \
-	      | mipstx39-* | mipstx39el-* \
-	      | f301-*)
+	      | power-* | none-* | 580-* | cray2-* | h8300-* | h8500-* | i960-* \
+	      | xmp-* | ymp-* \
+	      | x86-* | ppcbe-* | mipsbe-* | mipsle-* | shbe-* | shle-* \
+	      | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* | hppa2.0w-* \
+	      | hppa2.0n-* | hppa64-* \
+	      | alpha-* | alphaev[4-8]-* | alphaev56-* | alphapca5[67]-* \
+	      | alphaev6[78]-* \
+	      | we32k-* | cydra-* | ns16k-* | pn-* | np1-* | xps100-* \
+	      | clipper-* | orion-* \
+	      | sparclite-* | pdp10-* | pdp11-* | sh-* | sh[34]-* | sh[34]eb-* \
+	      | powerpc-* | powerpcle-* | sparc64-* | sparcv9-* | sparcv9b-* | sparc86x-* \
+	      | mips16-* | mips64-* | mipsel-* \
+	      | mips64el-* | mips64orion-* | mips64orionel-* \
+	      | mips64vr4100-* | mips64vr4100el-* | mips64vr4300-* | mips64vr4300el-* \
+	      | mipstx39-* | mipstx39el-* | mcore-* \
+	      | f30[01]-* | f700-* | s390-* | s390x-* | sv1-* | t3e-* \
+	      | [cjt]90-* \
+	      | m88110-* | m680[01234]0-* | m683?2-* | m68360-* | z8k-* | d10v-* \
+	      | thumb-* | v850-* | d30v-* | tic30-* | tic80-* | c30-* | fr30-* \
+	      | bs2000-* | tic54x-* | c54x-* | x86_64-* | pj-* | pjl-*)
 		;;
 	# Recognize the various machine names and aliases which stand
 	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-unknown
+		os=-bsd
+		;;
 	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
 		basic_machine=m68000-att
 		;;
 	3b*)
 		basic_machine=we32k-att
 		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
 	alliant | fx80)
 		basic_machine=fx80-alliant
 		;;
@@ -207,20 +326,24 @@ case $basic_machine in
 		os=-sysv
 		;;
 	amiga | amiga-*)
-		basic_machine=m68k-cbm
+		basic_machine=m68k-unknown
 		;;
 	amigaos | amigados)
-		basic_machine=m68k-cbm
+		basic_machine=m68k-unknown
 		os=-amigaos
 		;;
 	amigaunix | amix)
-		basic_machine=m68k-cbm
+		basic_machine=m68k-unknown
 		os=-sysv4
 		;;
 	apollo68)
 		basic_machine=m68k-apollo
 		os=-sysv
 		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
 	aux)
 		basic_machine=m68k-apple
 		os=-aux
@@ -257,13 +380,16 @@ case $basic_machine in
 		basic_machine=cray2-cray
 		os=-unicos
 		;;
-	[ctj]90-cray)
-		basic_machine=c90-cray
+	[cjt]90)
+		basic_machine=${basic_machine}-cray
 		os=-unicos
 		;;
 	crds | unos)
 		basic_machine=m68k-crds
 		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
 	da30 | da30-*)
 		basic_machine=m68k-da30
 		;;
@@ -297,6 +423,10 @@ case $basic_machine in
 	encore | umax | mmax)
 		basic_machine=ns32k-encore
 		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
 	fx2800)
 		basic_machine=i860-alliant
 		;;
@@ -307,6 +437,10 @@ case $basic_machine in
 		basic_machine=tron-gmicro
 		os=-sysv
 		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
 	h3050r* | hiux*)
 		basic_machine=hppa1.1-hitachi
 		os=-hiuxwe2
@@ -315,6 +449,14 @@ case $basic_machine in
 		basic_machine=h8300-hitachi
 		os=-hms
 		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
 	harris)
 		basic_machine=m88k-harris
 		os=-sysv3
@@ -330,13 +472,30 @@ case $basic_machine in
 		basic_machine=m68k-hp
 		os=-hpux
 		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
 	hp9k2[0-9][0-9] | hp9k31[0-9])
 		basic_machine=m68000-hp
 		;;
 	hp9k3[2-9][0-9])
 		basic_machine=m68k-hp
 		;;
-	hp9k7[0-9][0-9] | hp7[0-9][0-9] | hp9k8[0-9]7 | hp8[0-9]7)
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
 		basic_machine=hppa1.1-hp
 		;;
 	hp9k8[0-9][0-9] | hp8[0-9][0-9])
@@ -345,27 +504,42 @@ case $basic_machine in
 	hppa-next)
 		os=-nextstep3
 		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
 	i370-ibm* | ibm*)
 		basic_machine=i370-ibm
-		os=-mvs
 		;;
 # I'm not sure what "Sysv32" means.  Should this be sysv3.2?
-	i[34567]86v32)
+	i*86v32)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv32
 		;;
-	i[34567]86v4*)
+	i*86v4*)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv4
 		;;
-	i[34567]86v)
+	i*86v)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv
 		;;
-	i[34567]86sol2)
+	i*86sol2)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-solaris2
 		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	i386-vsta | vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
 	iris | iris4d)
 		basic_machine=mips-sgi
 		case $os in
@@ -391,9 +565,17 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
+	mingw32)
+		basic_machine=i386-pc
+		os=-mingw32
+		;;
 	miniframe)
 		basic_machine=m68000-convergent
 		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
 	mipsel*-linux*)
 		basic_machine=mipsel-unknown
 		os=-linux-gnu
@@ -408,10 +590,34 @@ case $basic_machine in
 	mips3*)
 		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
 		;;
+	mmix*)
+		basic_machine=mmix-knuth
+		os=-mmixware
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
 	ncr3000)
 		basic_machine=i486-ncr
 		os=-sysv4
 		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
 	news | news700 | news800 | news900)
 		basic_machine=m68k-sony
 		os=-newsos
@@ -424,6 +630,10 @@ case $basic_machine in
 		basic_machine=mips-sony
 		os=-newsos
 		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
 	next | m*-next )
 		basic_machine=m68k-next
 		case $os in
@@ -449,9 +659,32 @@ case $basic_machine in
 		basic_machine=i960-intel
 		os=-nindy
 		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
 	np1)
 		basic_machine=np1-gould
 		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
 	pa-hitachi)
 		basic_machine=hppa1.1-hitachi
 		os=-hiuxwe2
@@ -469,28 +702,28 @@ case $basic_machine in
        pc532 | pc532-*)
 		basic_machine=ns32k-pc532
 		;;
-	pentium | p5 | k5 | nexen)
+	pentium | p5 | k5 | k6 | nexgen)
 		basic_machine=i586-pc
 		;;
-	pentiumpro | p6 | k6 | 6x86)
+	pentiumpro | p6 | 6x86 | athlon)
 		basic_machine=i686-pc
 		;;
 	pentiumii | pentium2)
-		basic_machine=i786-pc
+		basic_machine=i686-pc
 		;;
-	pentium-* | p5-* | k5-* | nexen-*)
+	pentium-* | p5-* | k5-* | k6-* | nexgen-*)
 		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
-	pentiumpro-* | p6-* | k6-* | 6x86-*)
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
 		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	pentiumii-* | pentium2-*)
-		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	pn)
 		basic_machine=pn-gould
 		;;
-	power)	basic_machine=rs6000-ibm
+	power)	basic_machine=power-ibm
 		;;
 	ppc)	basic_machine=powerpc-unknown
 	        ;;
@@ -505,12 +738,24 @@ case $basic_machine in
 	ps2)
 		basic_machine=i386-ibm
 		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
 	rm[46]00)
 		basic_machine=mips-siemens
 		;;
 	rtpc | rtpc-*)
 		basic_machine=romp-ibm
 		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
 	sequent)
 		basic_machine=i386-sequent
 		;;
@@ -518,6 +763,10 @@ case $basic_machine in
 		basic_machine=sh-hitachi
 		os=-hms
 		;;
+	sparclite-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
 	sps7)
 		basic_machine=m68k-bull
 		os=-sysv2
@@ -525,6 +774,13 @@ case $basic_machine in
 	spur)
 		basic_machine=spur-unknown
 		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
 	sun2)
 		basic_machine=m68000-sun
 		;;
@@ -565,10 +821,22 @@ case $basic_machine in
 	sun386 | sun386i | roadrunner)
 		basic_machine=i386-sun
 		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
 	symmetry)
 		basic_machine=i386-sequent
 		os=-dynix
 		;;
+	t3e)
+		basic_machine=t3e-cray
+		os=-unicos
+		;;
+	tic54x | c54x*)
+		basic_machine=tic54x-unknown
+		os=-coff
+		;;
 	tx39)
 		basic_machine=mipstx39-unknown
 		;;
@@ -586,6 +854,10 @@ case $basic_machine in
 		basic_machine=a29k-nyu
 		os=-sym1
 		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
 	vaxv)
 		basic_machine=vax-dec
 		os=-sysv
@@ -609,6 +881,18 @@ case $basic_machine in
 		basic_machine=a29k-wrs
 		os=-vxworks
 		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	windows32)
+		basic_machine=i386-pc
+		os=-windows32-msvcrt
+		;;
 	xmp)
 		basic_machine=xmp-cray
 		os=-unicos
@@ -616,6 +900,10 @@ case $basic_machine in
        xps | xps100)
 		basic_machine=xps100-honeywell
 		;;
+	z8k-*-coff)
+		basic_machine=z8k-unknown
+		os=-sim
+		;;
 	none)
 		basic_machine=none-none
 		os=-none
@@ -623,6 +911,15 @@ case $basic_machine in

 # Here we handle the default manufacturer of certain CPU types.  It is in
 # some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
 	mips)
 		if [ x$os = x-linux-gnu ]; then
 			basic_machine=mips-unknown
@@ -639,13 +936,20 @@ case $basic_machine in
 	vax)
 		basic_machine=vax-dec
 		;;
+	pdp10)
+		# there are many clones, so DEC is not a safe bet
+		basic_machine=pdp10-unknown
+		;;
 	pdp11)
 		basic_machine=pdp11-dec
 		;;
 	we32k)
 		basic_machine=we32k-att
 		;;
-	sparc)
+	sh3 | sh4)
+		basic_machine=sh-unknown
+		;;
+	sparc | sparcv9 | sparcv9b)
 		basic_machine=sparc-sun
 		;;
        cydra)
@@ -657,6 +961,19 @@ case $basic_machine in
 	orion105)
 		basic_machine=clipper-highlevel
 		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	c4x*)
+		basic_machine=c4x-none
+		os=-coff
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
 	*)
 		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
 		exit 1
@@ -710,14 +1027,36 @@ case $os in
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -netbsd* | -openbsd* | -freebsd* | -riscix* \
-	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* \
+	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* \
 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -rhapsody* \
-	      | -openstep*)
+	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* | -os2*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto*)
+		os=-nto-qnx
+		;;
+	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo $os | sed -e 's|mac|macos|'`
+		;;
 	-linux*)
 		os=`echo $os | sed -e 's|linux|linux-gnu|'`
 		;;
@@ -727,6 +1066,12 @@ case $os in
 	-sunos6*)
 		os=`echo $os | sed -e 's|sunos6|solaris3|'`
 		;;
+	-opened*)
+		os=-openedition
+		;;
+	-wince*)
+		os=-wince
+		;;
 	-osfrose*)
 		os=-osfrose
 		;;
@@ -742,12 +1087,18 @@ case $os in
 	-acis*)
 		os=-aos
 		;;
+	-386bsd)
+		os=-bsd
+		;;
 	-ctix* | -uts*)
 		os=-sysv
 		;;
 	-ns2 )
 	        os=-nextstep2
 		;;
+	-nsk*)
+		os=-nsk
+		;;
 	# Preserve the version number of sinix5.
 	-sinix5.*)
 		os=`echo $os | sed -e 's|sinix|sysv|'`
@@ -773,9 +1124,18 @@ case $os in
 	# This must come after -sysvr4.
 	-sysv*)
 		;;
+	-ose*)
+		os=-ose
+		;;
+	-es1800*)
+		os=-ose
+		;;
 	-xenix)
 		os=-xenix
 		;;
+        -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+	        os=-mint
+		;;
 	-none)
 		;;
 	*)
@@ -801,9 +1161,15 @@ case $basic_machine in
 	*-acorn)
 		os=-riscix1.2
 		;;
+	arm*-rebel)
+		os=-linux
+		;;
 	arm*-semi)
 		os=-aout
 		;;
+	pdp10-*)
+		os=-tops20
+		;;
        pdp11-*)
 		os=-none
 		;;
@@ -822,6 +1188,15 @@ case $basic_machine in
 		# default.
 		# os=-sunos4
 		;;
+	m68*-cisco)
+		os=-aout
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
 	*-tti)	# must be before sparc entry or we get the wrong os.
 		os=-sysv3
 		;;
@@ -834,6 +1209,15 @@ case $basic_machine in
 	*-ibm)
 		os=-aix
 		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
 	*-hp)
 		os=-hpux
 		;;
@@ -894,9 +1278,21 @@ case $basic_machine in
 	*-masscomp)
 		os=-rtu
 		;;
-	f301-fujitsu)
+	f30[01]-fujitsu | f700-fujitsu)
 		os=-uxpv
 		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
 	*)
 		os=-none
 		;;
@@ -918,9 +1314,15 @@ case $basic_machine in
 			-aix*)
 				vendor=ibm
 				;;
+			-beos*)
+				vendor=be
+				;;
 			-hpux*)
 				vendor=hp
 				;;
+			-mpeix*)
+				vendor=hp
+				;;
 			-hiux*)
 				vendor=hitachi
 				;;
@@ -936,7 +1338,7 @@ case $basic_machine in
 			-genix*)
 				vendor=ns
 				;;
-			-mvs*)
+			-mvs* | -opened*)
 				vendor=ibm
 				;;
 			-ptx*)
@@ -948,9 +1350,26 @@ case $basic_machine in
 			-aux*)
 				vendor=apple
 				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
 		esac
 		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
 		;;
 esac

 echo $basic_machine$os
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
--- a/configure.in
+++ b/configure.in
@@ -1,20 +1,225 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_INIT(byteorder.h)
+
+AC_INIT()
+AC_CONFIG_SRCDIR([byteorder.h])
 AC_CONFIG_HEADER(config.h)
+AC_PREREQ(2.52)

-# compile with optimisation and without debugging by default
-CFLAGS=${CFLAGS-"-O"}
+RSYNC_VERSION=2.5.2pre3
+AC_SUBST(RSYNC_VERSION)
+AC_MSG_NOTICE([Configuring rsync $RSYNC_VERSION])

-AC_CANONICAL_SYSTEM
-AC_VALIDATE_CACHE_SYSTEM_TYPE
+AC_DEFINE_UNQUOTED(RSYNC_VERSION, ["$RSYNC_VERSION"], [rsync release version])
+
+LDFLAGS=${LDFLAGS-""}
+
+AC_CANONICAL_TARGET([])

 dnl Checks for programs.
 AC_PROG_CC
+AC_PROG_CPP
 AC_PROG_INSTALL
+AC_PROG_CC_STDC
 AC_SUBST(SHELL)

+AC_DEFINE([_GNU_SOURCE], 1,
+          [Define _GNU_SOURCE so that we get all necessary prototypes])
+
+if test "$xac_cv_prog_cc_stdc" = xno
+then
+	AC_MSG_WARN([rsync requires an ANSI C compiler and you don't seem to have one])
+fi
+
+# We must decide this before testing the compiler.
+
+# Please allow this to default to yes, so that your users have more
+# chance of getting a useful stack trace if problems occur.
+
+AC_MSG_CHECKING([whether to include debugging symbols])
+AC_ARG_ENABLE(debug,
+	AC_HELP_STRING([--enable-debug],
+		[including debugging symbols and features (default yes)]),
+		[], [])
+
+if test x"$enable_debug" = x"no"
+then
+    AC_MSG_RESULT(no)
+    CFLAGS=${CFLAGS-"-O"}
+else
+    AC_MSG_RESULT([yes])
+    # leave CFLAGS alone; AC_PROG_CC will try to include -g if it can
+    dnl AC_DEFINE(DEBUG, 1, [Define to turn on debugging code that may slow normal operation])
+    dnl CFLAGS=${CFLAGS-"-g"}
+fi
+
+
+
+
+AC_ARG_ENABLE(profile,
+	AC_HELP_STRING([--enable-profile],	
+		[turn on CPU profiling (default no)],
+		[], []))
+if test x"$enable_profile" = xyes
+then
+	CFLAGS="$CFLAGS -pg"
+fi
+
+
+# This is needed for our included version of popt.  Kind of silly, but
+# I don't want our version too far out of sync.
+CFLAGS="$CFLAGS -DHAVE_CONFIG_H"
+
+# If GCC, turn on warnings.
+if test "x$GCC" = "xyes"
+then
+	CFLAGS="$CFLAGS -Wall -W"
+fi
+
+AC_ARG_WITH(included-popt,
+        [  --with-included-popt    use bundled popt library, not from system])
+
+AC_ARG_WITH(rsync-path,
+	[  --with-rsync-path=PATH  set default --rsync-path to PATH (default: \"rsync\")],
+	[ RSYNC_PATH="$with_rsync_path" ],
+	[ RSYNC_PATH="rsync" ])
+AC_DEFINE_UNQUOTED(RSYNC_PATH, "$RSYNC_PATH", [ ])
+
 AC_CHECK_PROG(HAVE_REMSH, remsh, 1, 0)
-AC_DEFINE_UNQUOTED(HAVE_REMSH, $HAVE_REMSH)
+AC_DEFINE_UNQUOTED(HAVE_REMSH, $HAVE_REMSH, [ ])
+
+
+# arrgh. libc in the current debian stable screws up the largefile
+# stuff, getting byte range locking wrong
+AC_CACHE_CHECK([for broken largefile support],rsync_cv_HAVE_BROKEN_LARGEFILE,[
+AC_TRY_RUN([
+#define _FILE_OFFSET_BITS 64
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+int main(void) 
+{
+	struct flock lock;
+        int status;
+	int fd = open("conftest.dat", O_CREAT|O_RDWR, 0600);
+	lock.l_type = F_WRLCK;
+	lock.l_whence = SEEK_SET;
+	lock.l_start = 0;
+	lock.l_len = 1;
+	lock.l_pid = 0;
+	
+	fcntl(fd,F_SETLK,&lock);
+	if (fork() == 0) {
+		lock.l_start = 1;		
+		exit(fcntl(fd,F_SETLK,&lock) == 0);
+        }
+        wait(&status);
+	unlink("conftest.dat");
+	exit(WEXITSTATUS(status));
+}
+],
+rsync_cv_HAVE_BROKEN_LARGEFILE=yes,rsync_cv_HAVE_BROKEN_LARGEFILE=no,rsync_cv_HAVE_BROKEN_LARGEFILE=cross)])
+if test x"$rsync_cv_HAVE_BROKEN_LARGEFILE" != x"yes"; then
+   AC_SYS_LARGEFILE
+fi
+
+ipv6type=unknown
+ipv6lib=none
+ipv6trylibc=yes
+
+AC_ARG_ENABLE(ipv6, 
+	AC_HELP_STRING([--disable-ipv6], [don't even try to use IPv6]))
+
+if test "x$enable_ipv6" != xno
+then
+	AC_MSG_CHECKING([ipv6 stack type])
+	for i in inria kame linux-glibc linux-inet6 toshiba v6d zeta; do
+		case $i in
+		inria)
+			# http://www.kame.net/
+			AC_EGREP_CPP(yes, [
+#include <netinet/in.h>
+#ifdef IPV6_INRIA_VERSION
+yes
+#endif],
+				[ipv6type=$i;
+				AC_DEFINE(INET6, 1, [true if you have IPv6])
+				])
+			;;
+		kame)
+			# http://www.kame.net/
+			AC_EGREP_CPP(yes, [
+#include <netinet/in.h>
+#ifdef __KAME__
+yes
+#endif],
+				[ipv6type=$i; 
+				AC_DEFINE(INET6, 1, [true if you have IPv6])])
+			;;
+		linux-glibc)
+			# http://www.v6.linux.or.jp/
+			AC_EGREP_CPP(yes, [
+#include <features.h>
+#if defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1
+yes
+#endif],
+				[ipv6type=$i;
+AC_DEFINE(INET6, 1, [true if you have IPv6])])
+			;;
+		linux-inet6)
+			# http://www.v6.linux.or.jp/
+			if test -d /usr/inet6 -o -f /usr/inet6/lib/libinet6.a; then
+				ipv6type=$i
+				ipv6lib=inet6
+				ipv6libdir=/usr/inet6/lib
+				ipv6trylibc=yes;
+				AC_DEFINE(INET6, 1, [true if you have IPv6])
+				CFLAGS="-I/usr/inet6/include $CFLAGS"
+			fi
+			;;
+		toshiba)
+			AC_EGREP_CPP(yes, [
+#include <sys/param.h>
+#ifdef _TOSHIBA_INET6
+yes
+#endif],
+				[ipv6type=$i;
+				ipv6lib=inet6;
+				ipv6libdir=/usr/local/v6/lib;
+				AC_DEFINE(INET6, 1, [true if you have IPv6])])
+			;;
+		v6d)
+			AC_EGREP_CPP(yes, [
+#include </usr/local/v6/include/sys/v6config.h>
+#ifdef __V6D__
+yes
+#endif],
+				[ipv6type=$i;
+				ipv6lib=v6;
+				ipv6libdir=/usr/local/v6/lib;
+				AC_DEFINE(INET6, 1, [true if you have IPv6])])
+			;;
+		zeta)
+			AC_EGREP_CPP(yes, [
+#include <sys/param.h>
+#ifdef _ZETA_MINAMI_INET6
+yes
+#endif],
+				[ipv6type=$i;
+				ipv6lib=inet6;
+				ipv6libdir=/usr/local/v6/lib;
+				AC_DEFINE(INET6, 1, [true if you have IPv6])])
+			;;
+		esac
+		if test "$ipv6type" != "unknown"; then
+			break
+		fi
+	done
+	AC_MSG_RESULT($ipv6type)
+
+	AC_SEARCH_LIBS(getaddrinfo, inet6)
+fi

 AC_C_BIGENDIAN
 AC_HEADER_DIRENT
@@ -23,7 +228,9 @@ AC_HEADER_SYS_WAIT
 AC_CHECK_HEADERS(sys/fcntl.h sys/select.h fcntl.h sys/time.h sys/unistd.h unistd.h utime.h grp.h)
 AC_CHECK_HEADERS(compat.h sys/param.h ctype.h sys/wait.h sys/ioctl.h)
 AC_CHECK_HEADERS(sys/filio.h string.h stdlib.h sys/socket.h sys/mode.h)
-AC_CHECK_HEADERS(glob.h)
+AC_CHECK_HEADERS(glob.h alloca.h mcheck.h sys/sysctl.h arpa/inet.h arpa/nameser.h)
+AC_CHECK_HEADERS(netdb.h)
+AC_CHECK_HEADERS(malloc.h)

 AC_CHECK_SIZEOF(int)
 AC_CHECK_SIZEOF(long)
@@ -38,131 +245,22 @@ AC_TYPE_OFF_T
 AC_TYPE_SIZE_T
 AC_TYPE_PID_T
 AC_TYPE_GETGROUPS
-AC_STRUCT_ST_RDEV
-AC_CHECK_TYPE(ino_t,unsigned)
+AC_CHECK_MEMBERS([struct stat.st_rdev])
+
+AC_CHECK_TYPE([ino_t], [unsigned])
+TYPE_SOCKLEN_T

 AC_CACHE_CHECK([for errno in errno.h],rsync_cv_errno, [
    AC_TRY_COMPILE([#include <errno.h>],[int i = errno],
 	rsync_cv_errno=yes,rsync_cv_have_errno_decl=no)])
 if test x"$rsync_cv_errno" = x"yes"; then
-   AC_DEFINE(HAVE_ERRNO_DECL)
-fi
-
-AC_FUNC_MEMCMP
-AC_FUNC_UTIME_NULL
-AC_CHECK_FUNCS(waitpid wait4 getcwd strdup strerror chown chmod mknod)
-AC_CHECK_FUNCS(fchmod fstat strchr readlink link utime utimes strftime)
-AC_CHECK_FUNCS(memmove lchown vsnprintf snprintf setsid glob strpbrk)
-AC_CHECK_FUNCS(strlcat strlcpy inet_aton socketpair)
-
-AC_CACHE_CHECK([for working fnmatch],rsync_cv_HAVE_FNMATCH,[
-AC_TRY_RUN([#include <fnmatch.h>
-main() { exit((fnmatch("*.o", "x.o", FNM_PATHNAME) == 0 &&
-               fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME) != 0) ? 0: 1); }],
-rsync_cv_HAVE_FNMATCH=yes,rsync_cv_HAVE_FNMATCH=no,rsync_cv_HAVE_FNMATCH=cross)])
-if test x"$rsync_cv_HAVE_FNMATCH" = x"yes"; then
-    AC_DEFINE(HAVE_FNMATCH)
-fi
-
-# sometimes getopt_long cannot parse same arguments twice
-# e.g. on certain versions of CygWin32
-AC_CACHE_CHECK([for working getopt_long],rsync_cv_HAVE_GETOPT_LONG,[
-AC_TRY_RUN([#include <getopt.h>
-main() {
-    int i, x = 0; char *argv[] = { "x", "--xx" };
-    struct option o[] = {{"xx", 0, 0, 1}, {0,0,0,0}};
-    getopt_long(2, argv, "x", o, &i) == 1 ? x++ : 0; optind = 0;
-    getopt_long(2, argv, "x", o, &i) == 1 ? x++ : 0;
-    exit(x == 2 ? 0 : 1);
-}], rsync_cv_HAVE_GETOPT_LONG=yes,rsync_cv_HAVE_GETOPT_LONG=no,
-    rsync_cv_HAVE_GETOPT_LONG=cross)])
-if test x"$rsync_cv_HAVE_GETOPT_LONG" = x"yes"; then
-    AC_DEFINE(HAVE_GETOPT_LONG)
-fi
-
-AC_CACHE_CHECK([for long long],rsync_cv_HAVE_LONGLONG,[
-AC_TRY_RUN([#include <stdio.h>
-main() { long long x = 1000000; x *= x; exit(((x/1000000) == 1000000)? 0: 1); }],
-rsync_cv_HAVE_LONGLONG=yes,rsync_cv_HAVE_LONGLONG=no,rsync_cv_HAVE_LONGLONG=cross)])
-if test x"$rsync_cv_HAVE_LONGLONG" = x"yes"; then
-    AC_DEFINE(HAVE_LONGLONG)
-fi
-
-AC_CACHE_CHECK([for off64_t],rsync_cv_HAVE_OFF64_T,[
-AC_TRY_RUN([#include <stdio.h>
-#include <sys/stat.h>
-main() { struct stat64 st; off64_t s; if (sizeof(off_t) == sizeof(off64_t)) exit(1); exit((lstat64("/dev/null", &st)==0)?0:1); }],
-rsync_cv_HAVE_OFF64_T=yes,rsync_cv_HAVE_OFF64_T=no,rsync_cv_HAVE_OFF64_T=cross)])
-if test x"$rsync_cv_HAVE_OFF64_T" = x"yes"; then
-    AC_DEFINE(HAVE_OFF64_T)
-fi
-
-AC_CACHE_CHECK([for short ino_t],rsync_cv_HAVE_SHORT_INO_T,[
-AC_TRY_RUN([#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-main() { if (sizeof(ino_t) < sizeof(unsigned int)) return 0; return 1; }],
-rsync_cv_HAVE_SHORT_INO_T=yes,rsync_cv_HAVE_SHORT_INO_T=no,rsync_cv_HAVE_SHORT_INO_T=cross)])
-if test x"$rsync_cv_HAVE_SHORT_INO_T" = x"yes"; then
-    AC_DEFINE(HAVE_SHORT_INO_T)
-fi
-
-AC_CACHE_CHECK([for unsigned char],rsync_cv_HAVE_UNSIGNED_CHAR,[
-AC_TRY_RUN([#include <stdio.h>
-main() { char c; c=250; exit((c > 0)?0:1); }],
-rsync_cv_HAVE_UNSIGNED_CHAR=yes,rsync_cv_HAVE_UNSIGNED_CHAR=no,rsync_cv_HAVE_UNSIGNED_CHAR=cross)])
-if test x"$rsync_cv_HAVE_UNSIGNED_CHAR" = x"yes"; then
-    AC_DEFINE(HAVE_UNSIGNED_CHAR)
-fi
-
-AC_CACHE_CHECK([for broken readdir],rsync_cv_HAVE_BROKEN_READDIR,[
-AC_TRY_RUN([#include <sys/types.h>
-#include <dirent.h>
-main() { struct dirent *di; DIR *d = opendir("."); di = readdir(d);
-if (di && di->d_name[-2] == '.' && di->d_name[-1] == 0 &&
-di->d_name[0] == 0) exit(0); exit(1);} ],
-rsync_cv_HAVE_BROKEN_READDIR=yes,rsync_cv_HAVE_BROKEN_READDIR=no,rsync_cv_HAVE_BROKEN_READDIR=cross)])
-if test x"$rsync_cv_HAVE_BROKEN_READDIR" = x"yes"; then
-    AC_DEFINE(HAVE_BROKEN_READDIR)
-fi
-
-AC_CACHE_CHECK([for utimbuf],rsync_cv_HAVE_UTIMBUF,[
-AC_TRY_COMPILE([#include <sys/types.h>
-#include <utime.h>],
-[struct utimbuf tbuf;  tbuf.actime = 0; tbuf.modtime = 1; exit(utime("foo.c",&tbuf));],
-rsync_cv_HAVE_UTIMBUF=yes,rsync_cv_HAVE_UTIMBUF=no,rsync_cv_HAVE_UTIMBUF=cross)])
-if test x"$rsync_cv_HAVE_UTIMBUF" = x"yes"; then
-    AC_DEFINE(HAVE_UTIMBUF)
-fi
-
-AC_CACHE_CHECK([if gettimeofday takes tz argument],rsync_cv_HAVE_GETTIMEOFDAY_TZ,[
-AC_TRY_RUN([
-#include <sys/time.h>
-#include <unistd.h>
-main() { struct timeval tv; exit(gettimeofday(&tv, NULL));}],
-           rsync_cv_HAVE_GETTIMEOFDAY_TZ=yes,rsync_cv_HAVE_GETTIMEOFDAY_TZ=no,rsync_cv_HAVE_GETTIMEOFDAY_TZ=cross)])
-if test x"$rsync_cv_HAVE_GETTIMEOFDAY_TZ" = x"yes"; then
-    AC_DEFINE(HAVE_GETTIMEOFDAY_TZ)
-fi
-
-
-AC_CACHE_CHECK([for broken inet_ntoa],rsync_cv_REPLACE_INET_NTOA,[
-AC_TRY_RUN([
-#include <stdio.h>
-#include <sys/types.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-main() { struct in_addr ip; ip.s_addr = 0x12345678;
-if (strcmp(inet_ntoa(ip),"18.52.86.120") &&
-    strcmp(inet_ntoa(ip),"120.86.52.18")) { exit(0); } 
-exit(1);}],
-           rsync_cv_REPLACE_INET_NTOA=yes,rsync_cv_REPLACE_INET_NTOA=no,rsync_cv_REPLACE_INET_NTOA=cross)])
-if test x"$rsync_cv_REPLACE_INET_NTOA" = x"yes"; then
-    AC_DEFINE(REPLACE_INET_NTOA)
+   AC_DEFINE(HAVE_ERRNO_DECL, 1, [ ])
 fi

 # The following test taken from the cvs sources
 # If we can't find connect, try looking in -lsocket, -lnsl, and -linet.
+# These need checks to be before checks for any other functions that
+#    might be in the same libraries.
 # The Irix 5 libc.so has connect and gethostbyname, but Irix 5 also has
 # libsocket.so which has a bad implementation of gethostbyname (it
 # only looks in /etc/hosts), so we only look for -lsocket if we need
@@ -191,11 +289,37 @@ if test x"$ac_cv_func_connect" = x"no"; then
       test x"$ac_cv_lib_inet_connect" = x"yes"; then
        # ac_cv_func_connect=yes
        # don't!  it would cause AC_CHECK_FUNC to succeed next time configure is run
-        AC_DEFINE(HAVE_CONNECT)
+        AC_DEFINE(HAVE_CONNECT, 1, [ ])
    fi
 fi

-# 
+AC_CHECK_LIB(resolv, inet_ntop)
+
+dnl AC_MSG_NOTICE([Looking in libraries: $LIBS])
+
+AC_CHECK_FUNCS(inet_ntop, , AC_LIBOBJ(lib/inet_ntop)) 
+AC_CHECK_FUNCS(inet_pton, , AC_LIBOBJ(lib/inet_pton))
+
+AC_CHECK_FUNCS(getaddrinfo, , AC_LIBOBJ(lib/getaddrinfo)) 
+AC_CHECK_FUNCS(getnameinfo, , AC_LIBOBJ(lib/getnameinfo))
+
+AC_CHECK_MEMBER([struct sockaddr.sa_len], 
+		[ AC_DEFINE(HAVE_SOCKADDR_LEN) ],
+		[],
+		[
+#include <sys/types.h>
+#include <sys/socket.h>
+])
+
+AC_MSG_CHECKING(struct sockaddr_storage)
+AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/socket.h>],
+[struct sockaddr_storage x;],
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(HAVE_SOCKADDR_STORAGE, 1, 
+		[Define if you have strct sockaddr_storage.] ),
+	AC_MSG_RESULT(no))
+
 # if we can't find strcasecmp, look in -lresolv (for Unixware at least)
 #
 AC_CHECK_FUNCS(strcasecmp)
@@ -203,6 +327,198 @@ if test x"$ac_cv_func_strcasecmp" = x"no"; then
    AC_CHECK_LIB(resolv, strcasecmp)
 fi

+dnl At the moment we don't test for a broken memcmp(), because all we
+dnl need to do is test for equality, not comparison, and it seems that
+dnl every platform has a memcmp that can do at least that.  
+dnl AC_FUNC_MEMCMP
+
+AC_FUNC_UTIME_NULL
+AC_CHECK_FUNCS(waitpid wait4 getcwd strdup strerror chown chmod mknod)
+AC_CHECK_FUNCS(fchmod fstat strchr readlink link utime utimes strftime)
+AC_CHECK_FUNCS(memmove lchown vsnprintf snprintf asprintf setsid glob strpbrk)
+AC_CHECK_FUNCS(strlcat strlcpy mtrace mallinfo)
+
+AC_CACHE_CHECK([for working socketpair],rsync_cv_HAVE_SOCKETPAIR,[
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <sys/socket.h>
+
+main() {
+       int fd[2];
+       exit((socketpair(AF_UNIX, SOCK_STREAM, 0, fd) != -1) ? 0 : 1);
+}],
+rsync_cv_HAVE_SOCKETPAIR=yes,rsync_cv_HAVE_SOCKETPAIR=no,rsync_cv_HAVE_SOCKETPAIR=cross)])
+if test x"$rsync_cv_HAVE_SOCKETPAIR" = x"yes"; then
+    AC_DEFINE(HAVE_SOCKETPAIR, 1, [ ])
+fi
+
+AC_CACHE_CHECK([for working fnmatch],rsync_cv_HAVE_FNMATCH,[
+AC_TRY_RUN([#include <fnmatch.h>
+main() { exit((fnmatch("*.o", "x.o", FNM_PATHNAME) == 0 &&
+               fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME) != 0) ? 0: 1); }],
+rsync_cv_HAVE_FNMATCH=yes,rsync_cv_HAVE_FNMATCH=no,rsync_cv_HAVE_FNMATCH=cross)])
+if test x"$rsync_cv_HAVE_FNMATCH" = x"yes"; then
+    AC_DEFINE(HAVE_FNMATCH, 1, [ ])
+fi
+
+if test x"$with_included_popt" != x"yes"
+then
+    AC_CHECK_LIB(popt, poptGetContext, , [with_included_popt=yes])
+fi
+
+AC_MSG_CHECKING([whether to use included libpopt])
+if test x"$with_included_popt" = x"yes"
+then
+    AC_MSG_RESULT($srcdir/popt)
+    BUILD_POPT='$(popt_OBJS)'
+    CFLAGS="$CFLAGS -I$srcdir/popt"
+else
+    AC_MSG_RESULT(no)
+fi
+
+AC_CACHE_CHECK([for long long],rsync_cv_HAVE_LONGLONG,[
+AC_TRY_RUN([#include <stdio.h>
+main() { long long x = 1000000; x *= x; exit(((x/1000000) == 1000000)? 0: 1); }],
+rsync_cv_HAVE_LONGLONG=yes,rsync_cv_HAVE_LONGLONG=no,rsync_cv_HAVE_LONGLONG=cross)])
+if test x"$rsync_cv_HAVE_LONGLONG" = x"yes"; then
+    AC_DEFINE(HAVE_LONGLONG, 1, [ ])
+fi
+
+AC_CACHE_CHECK([for off64_t],rsync_cv_HAVE_OFF64_T,[
+AC_TRY_RUN([#include <stdio.h>
+#include <sys/stat.h>
+main() { struct stat64 st; off64_t s; if (sizeof(off_t) == sizeof(off64_t)) exit(1); exit((lstat64("/dev/null", &st)==0)?0:1); }],
+rsync_cv_HAVE_OFF64_T=yes,rsync_cv_HAVE_OFF64_T=no,rsync_cv_HAVE_OFF64_T=cross)])
+if test x"$rsync_cv_HAVE_OFF64_T" = x"yes"; then
+    AC_DEFINE(HAVE_OFF64_T, 1, [ ])
+fi
+
+AC_CACHE_CHECK([for short ino_t],rsync_cv_HAVE_SHORT_INO_T,[
+AC_TRY_RUN([#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+main() { if (sizeof(ino_t) < sizeof(unsigned int)) return 0; return 1; }],
+rsync_cv_HAVE_SHORT_INO_T=yes,rsync_cv_HAVE_SHORT_INO_T=no,rsync_cv_HAVE_SHORT_INO_T=cross)])
+if test x"$rsync_cv_HAVE_SHORT_INO_T" = x"yes"; then
+    AC_DEFINE(HAVE_SHORT_INO_T, 1, [ ])
+fi
+
+AC_CACHE_CHECK([for unsigned char],rsync_cv_HAVE_UNSIGNED_CHAR,[
+AC_TRY_RUN([#include <stdio.h>
+main() { char c; c=250; exit((c > 0)?0:1); }],
+rsync_cv_HAVE_UNSIGNED_CHAR=yes,rsync_cv_HAVE_UNSIGNED_CHAR=no,rsync_cv_HAVE_UNSIGNED_CHAR=cross)])
+if test x"$rsync_cv_HAVE_UNSIGNED_CHAR" = x"yes"; then
+    AC_DEFINE(HAVE_UNSIGNED_CHAR, 1, [ ])
+fi
+
+AC_CACHE_CHECK([for broken readdir],rsync_cv_HAVE_BROKEN_READDIR,[
+AC_TRY_RUN([#include <sys/types.h>
+#include <dirent.h>
+main() { struct dirent *di; DIR *d = opendir("."); di = readdir(d);
+if (di && di->d_name[-2] == '.' && di->d_name[-1] == 0 &&
+di->d_name[0] == 0) exit(0); exit(1);} ],
+rsync_cv_HAVE_BROKEN_READDIR=yes,rsync_cv_HAVE_BROKEN_READDIR=no,rsync_cv_HAVE_BROKEN_READDIR=cross)])
+if test x"$rsync_cv_HAVE_BROKEN_READDIR" = x"yes"; then
+    AC_DEFINE(HAVE_BROKEN_READDIR, 1, [ ])
+fi
+
+AC_CACHE_CHECK([for utimbuf],rsync_cv_HAVE_UTIMBUF,[
+AC_TRY_COMPILE([#include <sys/types.h>
+#include <utime.h>],
+[struct utimbuf tbuf;  tbuf.actime = 0; tbuf.modtime = 1; exit(utime("foo.c",&tbuf));],
+rsync_cv_HAVE_UTIMBUF=yes,rsync_cv_HAVE_UTIMBUF=no,rsync_cv_HAVE_UTIMBUF=cross)])
+if test x"$rsync_cv_HAVE_UTIMBUF" = x"yes"; then
+    AC_DEFINE(HAVE_UTIMBUF, 1, [ ])
+fi
+
+AC_CACHE_CHECK([if gettimeofday takes tz argument],rsync_cv_HAVE_GETTIMEOFDAY_TZ,[
+AC_TRY_RUN([
+#include <sys/time.h>
+#include <unistd.h>
+main() { struct timeval tv; exit(gettimeofday(&tv, NULL));}],
+           rsync_cv_HAVE_GETTIMEOFDAY_TZ=yes,rsync_cv_HAVE_GETTIMEOFDAY_TZ=no,rsync_cv_HAVE_GETTIMEOFDAY_TZ=cross)])
+if test x"$rsync_cv_HAVE_GETTIMEOFDAY_TZ" = x"yes"; then
+    AC_DEFINE(HAVE_GETTIMEOFDAY_TZ, 1, [ ])
+fi
+
+AC_CACHE_CHECK([for C99 vsnprintf],rsync_cv_HAVE_C99_VSNPRINTF,[
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <stdarg.h>
+void foo(const char *format, ...) { 
+       va_list ap;
+       int len;
+       char buf[5];
+
+       va_start(ap, format);
+       len = vsnprintf(0, 0, format, ap);
+       va_end(ap);
+       if (len != 5) exit(1);
+
+       if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);
+
+       exit(0);
+}
+main() { foo("hello"); }
+],
+rsync_cv_HAVE_C99_VSNPRINTF=yes,rsync_cv_HAVE_C99_VSNPRINTF=no,rsync_cv_HAVE_C99_VSNPRINTF=cross)])
+if test x"$rsync_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
+    AC_DEFINE(HAVE_C99_VSNPRINTF, 1, [ ])
+fi
+
+
+AC_CACHE_CHECK([for secure mkstemp],rsync_cv_HAVE_SECURE_MKSTEMP,[
+AC_TRY_RUN([#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+main() { 
+  struct stat st;
+  char tpl[20]="/tmp/test.XXXXXX"; 
+  int fd = mkstemp(tpl); 
+  if (fd == -1) exit(1);
+  unlink(tpl);
+  if (fstat(fd, &st) != 0) exit(1);
+  if ((st.st_mode & 0777) != 0600) exit(1);
+  exit(0);
+}],
+rsync_cv_HAVE_SECURE_MKSTEMP=yes,
+rsync_cv_HAVE_SECURE_MKSTEMP=no,
+rsync_cv_HAVE_SECURE_MKSTEMP=cross)])
+if test x"$rsync_cv_HAVE_SECURE_MKSTEMP" = x"yes"; then
+    AC_DEFINE(HAVE_SECURE_MKSTEMP, 1, [ ])
+fi
+
+
+AC_CACHE_CHECK([for broken inet_ntoa],rsync_cv_REPLACE_INET_NTOA,[
+AC_TRY_RUN([
+#include <stdio.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+main() { struct in_addr ip; ip.s_addr = 0x12345678;
+if (strcmp(inet_ntoa(ip),"18.52.86.120") &&
+    strcmp(inet_ntoa(ip),"120.86.52.18")) { exit(1); } 
+exit(0);}],
+           rsync_cv_REPLACE_INET_NTOA=no,rsync_cv_REPLACE_INET_NTOA=yes,rsync_cv_REPLACE_INET_NTOA=cross)])
+if test x"$rsync_cv_REPLACE_INET_NTOA" = x"yes"; then
+    AC_DEFINE(REPLACE_INET_NTOA, 1, [ ])
+fi
+
+
+AC_CACHE_CHECK([for broken inet_aton],rsync_cv_REPLACE_INET_ATON,[
+AC_TRY_RUN([
+#include <stdio.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+main() { struct in_addr ip; 
+if (inet_aton("example", &ip) == 0) exit(0); exit(1);}],
+           rsync_cv_REPLACE_INET_ATON=no,rsync_cv_REPLACE_INET_ATON=yes,rsync_cv_REPLACE_INET_ATON=cross)])
+if test x"$rsync_cv_REPLACE_INET_ATON" = x"yes"; then
+    AC_DEFINE(REPLACE_INET_ATON, 1, [ ])
+fi
+
 #
 # The following test was mostly taken from the tcl/tk plus patches
 #
@@ -232,6 +548,11 @@ fi
 AC_SUBST(OBJ_SAVE)
 AC_SUBST(OBJ_RESTORE)
 AC_SUBST(CC_SHOBJ_FLAG)
+AC_SUBST(BUILD_POPT)

+AC_CONFIG_FILES([Makefile lib/dummy zlib/dummy popt/dummy shconfig])
+AC_OUTPUT

-AC_OUTPUT(Makefile lib/dummy zlib/dummy)
+AC_MSG_RESULT()
+AC_MSG_RESULT([    rsync ${RSYNC_VERSION} configuration successful])
+AC_MSG_RESULT()
--- a/csprotocol.txt
+++ b/csprotocol.txt
@@ -0,0 +1,82 @@
+This is kind of informal and may be wrong, but it helped me.  It's
+basically a summary of clientserver.c and authenticate.c.
+
+ -- Martin Pool <mbp@samba.org>
+
+$Id$
+
+
+
+
+This is the protocol used for rsync --daemon; i.e. connections to port
+873 rather than invocations over a remote shell.
+
+When the server accepts a connection, it prints a greeting
+
+  @RSYNCD: <version>
+
+where <version> is the numeric version; currently 24.  It follows this
+with a free text message-of-the-day.  It expects to see a similar
+greeting back from the client.
+
+The server is now in the connected state.  The client can either send
+the command
+
+  #list
+
+to get a listing of modules, or the name of a module.  After this, the
+connection is now bound to a particular module.  Access per host for
+this module is now checked, as is per-module connection limits.
+
+If authentication is required to use this module, the server will say
+
+  @RSYNCD: AUTHREQD <challenge>
+
+where <challenge> is a random string of base64 characters.  The client
+must respond with
+
+  <user> <response>
+
+where <user> is the username they claim to be, and <response> is the
+base64 form of the MD4 hash of challenge+password.
+
+At this point the server applies all remaining constraints before
+handing control to the client, including switching uid/gid, setting up
+include and exclude lists, moving to the root of the module, and doing
+chroot.
+
+If the login is acceptable, then the server will respond with
+
+  @RSYNCD: OK
+
+The client now writes some rsync options, as if it were remotely
+executing the command.  The server parses these arguments as if it had
+just been invoked with them, but they're added to the existing state.
+So if the client specifies a list of files to be included or excluded,
+they'll defer to existing limits specified in the server
+configuration.
+
+At this point the client and server both switch to using a
+multiplexing layer across the socket.  The main point of this is to
+allow the server to asynchronously pass errors back, while still
+allowing streamed and pipelined data.
+
+Unfortunately, the multiplex protocol is not used at every stage.  We
+start up in plain socket mode and then change over by calling
+io_start_buffering.  Of course both the client and the server have to
+do this at the same point.
+
+The server then talks to the client as normal across the socket,
+passing checksums, file lists and so on.  For documentation of that,
+stay tuned (or write it yourself!).
+
+
+
+------------
+Protocol version changes
+
+25	 (2001-08-20, 2.4.7pre2) 
+
+	 Send an explicit "@RSYNC EXIT" command at the end of the
+	 module listing.  We never intentionally end the transmission
+	 by just closing the socket anymore.
--- a/errcode.h
+++ b/errcode.h
@@ -1,4 +1,26 @@
-/* error codes returned by rsync */
+/* -*- c-file-style: "linux"; -*-
+   
+   Copyright (C) 1998-2000 by Andrew Tridgell
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ * error codes returned by rsync.  If you change these, please also update the
+ * string mappings in log.c
+ */

 #define RERR_SYNTAX     1       /* syntax or usage error */
 #define RERR_PROTOCOL   2       /* protocol incompatibility */
@@ -14,5 +36,22 @@
 #define RERR_SIGNAL     20      /* status returned when sent SIGUSR1, SIGINT */
 #define RERR_WAITCHILD  21      /* some error returned by waitpid() */
 #define RERR_MALLOC     22      /* error allocating core memory buffers */
+#define RERR_PARTIAL    23      /* partial transfer */

 #define RERR_TIMEOUT    30      /* timeout in data send/receive */
+
+/* Although it doesn't seem to be specified anywhere,
+ * ssh and the shell seem to return these values:
+ *
+ * 124 if the command exited with status 255
+ * 125 if the command is killed by a signal
+ * 126 if the command cannot be run
+ * 127 if the command is not found
+ *
+ * and we could use this to give a better explanation if the remote
+ * command is not found.
+ */
+#define RERR_CMD_FAILED 124
+#define RERR_CMD_KILLED 125
+#define RERR_CMD_RUN 126
+#define RERR_CMD_NOTFOUND 127
--- a/exclude.c
+++ b/exclude.c
@@ -27,6 +27,50 @@ extern int delete_mode;

 static struct exclude_struct **exclude_list;

+/*
+ * Optimization for special case when all included files are explicitly
+ *   listed without wildcards in the "exclude" list followed by a "- *"
+ *   to exclude the rest.
+ * Contributed by Dave Dykstra <dwd@bell-labs.com>
+ */
+static int only_included_files = 1;
+static struct exclude_struct *exclude_the_rest;
+
+int send_included_file_names(int f,struct file_list *flist)
+{
+	struct exclude_struct *ex, **ex_list;
+	int n;
+	char *p;
+
+	if (!only_included_files || (exclude_the_rest == NULL) || delete_mode)
+		return 0;
+
+	if (verbose > 1) {
+		rprintf(FINFO,"(using include-only optimization) ");
+	}
+
+	/* set exclude_list to NULL temporarily so check_exclude */
+	/*   will always return true */
+	ex_list = exclude_list;
+	exclude_list = NULL;
+	for (n=0; (ex = ex_list[n]) != NULL; n++) {
+		if (ex == exclude_the_rest)
+			break;
+		p = ex->pattern;
+		while (*p == '/') {
+			/* skip the allowed beginning slashes */
+			p++;
+		}
+		/* silently skip files that don't exist to
+		   be more like non-optimized case */
+		if (access(p,0) == 0)
+			send_file_name(f,flist,p,0,0);
+	}
+	exclude_list = ex_list;
+	
+	return 1;
+}
+
 /* build an exclude structure given a exclude pattern */
 static struct exclude_struct *make_exclude(char *pattern, int include)
 {
@@ -51,18 +95,15 @@ static struct exclude_struct *make_exclude(char *pattern, int include)
 	if (!ret->pattern) out_of_memory("make_exclude");

 	if (strpbrk(pattern, "*[?")) {
-	    ret->regular_exp = 1;
-	    ret->fnmatch_flags = FNM_PATHNAME;
-	    if (strstr(pattern, "**")) {
-		    static int tested;
-		    if (!tested) {
-			    tested = 1;
-			    if (fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME)==0) {
-				    rprintf(FERROR,"WARNING: fnmatch FNM_PATHNAME is broken on your system\n");
-			    }
-		    }
-		    ret->fnmatch_flags = 0;
+	    if (!ret->include && (*pattern == '*') && (*(pattern+1) == '\0')) {
+		    exclude_the_rest = ret;
+	    } else {
+		    only_included_files = 0;
 	    }
+	    ret->regular_exp = 1;
+	    ret->fnmatch_flags = strstr(pattern, "**") ? 0 : FNM_PATHNAME;
+	} else if (!ret->include) {
+		only_included_files = 0;
 	}

 	if (strlen(pattern) > 1 && pattern[strlen(pattern)-1] == '/') {
@@ -104,17 +145,15 @@ static int check_one_exclude(char *name,struct exclude_struct *ex,
 	}

 	if (ex->regular_exp) {
-		if (fnmatch(pattern, name, ex->fnmatch_flags) == 0) {
+		if (fnmatch(pattern, name, ex->fnmatch_flags) == 0)
 			return 1;
-		}
 	} else {
 		int l1 = strlen(name);
 		int l2 = strlen(pattern);
 		if (l2 <= l1 && 
 		    strcmp(name+(l1-l2),pattern) == 0 &&
-		    (l1==l2 || (!match_start && name[l1-(l2+1)] == '/'))) {
+		    (l1==l2 || (!match_start && name[l1-(l2+1)] == '/')))
 			return 1;
-		}
 	}

 	return 0;
@@ -160,6 +199,8 @@ void add_exclude_list(char *pattern,struct exclude_struct ***list, int include)
 		}
 		free((*list));
 		*list = NULL;
+		only_included_files = 1;
+		exclude_the_rest = NULL;
 		return;
 	}

@@ -257,7 +298,8 @@ void send_exclude_list(int f)
 void recv_exclude_list(int f)
 {
 	char line[MAXPATHLEN];
-	int l;
+	unsigned int l;
+
 	while ((l=read_int(f))) {
 		if (l >= MAXPATHLEN) overflow("recv_exclude_list");
 		read_sbuf(f,line,l);
--- a/fileio.c
+++ b/fileio.c
@@ -36,7 +36,7 @@ int sparse_end(int f)
 }


-static int write_sparse(int f,char *buf,int len)
+static int write_sparse(int f,char *buf,size_t len)
 {
 	int l1=0,l2=0;
 	int ret;
@@ -69,7 +69,7 @@ static int write_sparse(int f,char *buf,int len)



-int write_file(int f,char *buf,int len)
+int write_file(int f,char *buf,size_t len)
 {
 	int ret = 0;

--- a/flist.c
+++ b/flist.c
@@ -282,7 +282,7 @@ static void receive_file_entry(struct file_struct **fptr,
 	static gid_t last_gid;
 	static char lastname[MAXPATHLEN];
 	char thisname[MAXPATHLEN];
-	int l1=0,l2=0;
+	unsigned int l1=0,l2=0;
 	char *p;
 	struct file_struct *file;

@@ -299,11 +299,7 @@ static void receive_file_entry(struct file_struct **fptr,
 	memset((char *)file, 0, sizeof(*file));
 	(*fptr) = file;

-	if (l2 >= MAXPATHLEN-l1) {
-		rprintf(FERROR,"overflow: flags=0x%x l1=%d l2=%d lastname=%s\n",
-			flags, l1, l2, lastname);
-		overflow("receive_file_entry");
-	}
+	if (l2 >= MAXPATHLEN-l1) overflow("receive_file_entry");

 	strlcpy(thisname,lastname,l1+1);
 	read_sbuf(f,&thisname[l1],l2);
@@ -349,6 +345,10 @@ static void receive_file_entry(struct file_struct **fptr,

 	if (preserve_links && S_ISLNK(file->mode)) {
 		int l = read_int(f);
+		if (l < 0) {
+			rprintf(FERROR,"overflow: l=%d\n", l);
+			overflow("receive_file_entry");
+		}
 		file->link = (char *)malloc(l+1);
 		if (!file->link) out_of_memory("receive_file_entry 2");
 		read_sbuf(f,file->link,l);
@@ -413,8 +413,7 @@ static int skip_filesystem(char *fname, STRUCT_STAT *st)
 	return (st2.st_dev != filesystem_dev);
 }

-/* create a file_struct for a named file */
-struct file_struct *make_file(int f, char *fname)
+static struct file_struct *make_file(int f, char *fname)
 {
 	struct file_struct *file;
 	STRUCT_STAT st;
@@ -436,7 +435,7 @@ struct file_struct *make_file(int f, char *fname)

 	if (readlink_stat(fname,&st,linkbuf) != 0) {
 		io_error = 1;
-		rprintf(FERROR,"readlink %s: %s\n",
+		rprintf(FERROR,"%s: %s\n",
 			fname,strerror(errno));
 		return NULL;
 	}
@@ -673,10 +672,8 @@ struct file_list *send_file_list(int f,int argc,char *argv[])
 		}

 		if (link_stat(fname,&st) != 0) {
-			if (f != -1) {
-				io_error=1;
-				rprintf(FERROR,"link_stat %s : %s\n",fname,strerror(errno));
-			}
+			io_error=1;
+			rprintf(FERROR,"%s : %s\n",fname,strerror(errno));
 			continue;
 		}

@@ -744,7 +741,8 @@ struct file_list *send_file_list(int f,int argc,char *argv[])
 		if (one_file_system)
 			set_filesystem(fname);

-		send_file_name(f,flist,fname,recurse,FLAG_DELETE);
+		if (!recurse || !send_included_file_names(f,flist))
+			send_file_name(f,flist,fname,recurse,FLAG_DELETE);

 		if (olddir != NULL) {
 			flist_dir = NULL;
@@ -928,7 +926,7 @@ int flist_find(struct file_list *flist,struct file_struct *f)
 /*
 * free up one file
 */
-void free_file(struct file_struct *file)
+static void free_file(struct file_struct *file)
 {
 	if (!file) return;
 	if (file->basename) free(file->basename);
@@ -1005,12 +1003,12 @@ static void clean_flist(struct file_list *flist, int strip_root)
 	if (verbose <= 3) return;

 	for (i=0;i<flist->count;i++) {
-		rprintf(FINFO,"[%d] i=%d %s %s mode=0%o len=%.0f\n",
+		rprintf(FINFO,"[%d] i=%d %s %s mode=0%o len=%d\n",
 			getpid(), i, 
 			NS(flist->files[i]->dirname),
 			NS(flist->files[i]->basename),
 			flist->files[i]->mode,
-			(double)flist->files[i]->length);
+			(int)flist->files[i]->length);
 	}
 }

--- a/generator.c
+++ b/generator.c
@@ -1,6 +1,10 @@
-/* 
-   Copyright (C) Andrew Tridgell 1996
+/* -*- c-file-style: "linux" -*-
+
+   rsync -- fast file replication program
+   
+   Copyright (C) 1996-2000 by Andrew Tridgell 
   Copyright (C) Paul Mackerras 1996
+   Copyright (C) 2002 by Martin Pool <mbp@samba.org>
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -35,6 +39,8 @@ extern int size_only;
 extern int io_timeout;
 extern int remote_version;
 extern int always_checksum;
+extern int modify_window;
+extern char *compare_dest;


 /* choose whether to skip a particular file */
@@ -49,6 +55,15 @@ static int skip_file(char *fname,
 	   of the file time to determine whether to sync */
 	if (always_checksum && S_ISREG(st->st_mode)) {
 		char sum[MD4_SUM_LENGTH];
+		char fnamecmpdest[MAXPATHLEN];
+
+		if (compare_dest != NULL) {
+			if (access(fname, 0) != 0) {
+				snprintf(fnamecmpdest,MAXPATHLEN,"%s/%s",
+						    compare_dest,fname);
+				fname = fnamecmpdest;
+			}
+		}
 		file_checksum(fname,sum,st->st_size);
 		if (remote_version < 21) {
 			return (memcmp(sum,file->sum,2) == 0);
@@ -65,7 +80,7 @@ static int skip_file(char *fname,
 		return 0;
 	}

-	return (st->st_mtime == file->modtime);
+	return (cmp_modtime(st->st_mtime,file->modtime) == 0);
 }


@@ -87,25 +102,30 @@ static int adapt_block_size(struct file_struct *file, int bsize)
 /*
  send a sums struct down a fd
  */
-static void send_sums(struct sum_struct *s,int f_out)
+static void send_sums(struct sum_struct *s, int f_out)
 {
-	int i;
-	
-	/* tell the other guy how many we are going to be doing and how many
-	   bytes there are in the last chunk */
-	write_int(f_out,s?s->count:0);
-	write_int(f_out,s?s->n:block_size);
-	write_int(f_out,s?s->remainder:0);
+	if (s) {
+		size_t i;

-	if (!s) return;
+		/* tell the other guy how many we are going to be
+		   doing and how many bytes there are in the last
+		   chunk */
+		write_int(f_out, s->count);
+		write_int(f_out, s->n);
+		write_int(f_out, s->remainder);

-	for (i=0;i<s->count;i++) {
-		write_int(f_out,s->sums[i].sum1);
-		write_buf(f_out,s->sums[i].sum2,csum_length);
+		for (i = 0; i < s->count; i++) {
+			write_int(f_out, s->sums[i].sum1);
+			write_buf(f_out, s->sums[i].sum2, csum_length);
+		}
+	} else {
+		/* we don't have checksums */
+		write_int(f_out, 0);
+		write_int(f_out, block_size);
+		write_int(f_out, 0);
 	}
 }

-
 /*
  generate a stream of signatures/checksums that describe a buffer

@@ -165,6 +185,15 @@ static struct sum_struct *generate_sums(struct map_struct *buf,OFF_T len,int n)
 }


+
+/*
+ * Acts on file number I from FLIST, whose name is fname.
+ *
+ * First fixes up permissions, then generates checksums for the file.
+ *
+ * (This comment was added later by mbp who was trying to work it out;
+ * it might be wrong.)
+ */ 
 void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 {  
 	int fd;
@@ -189,7 +218,8 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)

 	if (only_existing && statret == -1 && errno == ENOENT) {
 		/* we only want to update existing files */
-		if (verbose > 1) rprintf(FINFO,"not creating %s\n",fname);
+		if (verbose > 1) rprintf(FINFO, RSYNC_NAME
+					 ": not creating new file \"%s\"\n",fname);
 		return;
 	}

@@ -203,10 +233,18 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 	}

 	if (S_ISDIR(file->mode)) {
-		if (dry_run) return;
+                /* The file to be received is a directory, so we need
+                 * to prepare appropriately.  If there is already a
+                 * file of that name and it is *not* a directory, then
+                 * we need to delete it.  If it doesn't exist, then
+                 * recursively create it. */
+          
+		if (dry_run) return; /* XXXX -- might cause inaccuracies?? -- mbp */
 		if (statret == 0 && !S_ISDIR(st.st_mode)) {
 			if (robust_unlink(fname) != 0) {
-				rprintf(FERROR,"unlink %s : %s\n",fname,strerror(errno));
+				rprintf(FERROR, RSYNC_NAME
+					": recv_generator: unlink \"%s\" to make room for directory: %s\n",
+                                        fname,strerror(errno));
 				return;
 			}
 			statret = -1;
@@ -215,11 +253,13 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 			if (!(relative_paths && errno==ENOENT && 
 			      create_directory_path(fname)==0 && 
 			      do_mkdir(fname,file->mode)==0)) {
-				rprintf(FERROR,"mkdir %s : %s (2)\n",
+				rprintf(FERROR, RSYNC_NAME ": recv_generator: mkdir \"%s\": %s (2)\n",
 					fname,strerror(errno));
 			}
 		}
-		if (set_perms(fname,file,NULL,0) && verbose) 
+		/* f_out is set to -1 when doing final directory 
+		   permission and modification time repair */
+		if (set_perms(fname,file,NULL,0) && verbose && (f_out != -1)) 
 			rprintf(FINFO,"%s/\n",fname);
 		return;
 	}
@@ -232,7 +272,7 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)

 		if (safe_symlinks && unsafe_symlink(file->link, fname)) {
 			if (verbose) {
-				rprintf(FINFO,"ignoring unsafe symlink %s -> %s\n",
+				rprintf(FINFO,RSYNC_NAME ": ignoring unsafe symlink \"%s\" -> \"%s\"\n",
 					fname,file->link);
 			}
 			return;
@@ -241,20 +281,26 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 			l = readlink(fname,lnk,MAXPATHLEN-1);
 			if (l > 0) {
 				lnk[l] = 0;
+				/* A link already pointing to the
+				 * right place -- no further action
+				 * required. */
 				if (strcmp(lnk,file->link) == 0) {
 					set_perms(fname,file,&st,1);
 					return;
 				}
-			}
+			}  
+			/* Not a symlink, so delete whatever's
+			 * already there and put a new symlink
+			 * in place. */			   
+			delete_file(fname);
 		}
-		delete_file(fname);
 		if (do_symlink(file->link,fname) != 0) {
-			rprintf(FERROR,"symlink %s -> %s : %s\n",
+			rprintf(FERROR,RSYNC_NAME": symlink \"%s\" -> \"%s\": %s\n",
 				fname,file->link,strerror(errno));
 		} else {
 			set_perms(fname,file,NULL,0);
 			if (verbose) {
-				rprintf(FINFO,"%s -> %s\n",
+				rprintf(FINFO,RSYNC_NAME": %s -> %s\n",
 					fname,file->link);
 			}
 		}
@@ -287,12 +333,14 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)

 	if (preserve_hard_links && check_hard_link(file)) {
 		if (verbose > 1)
-			rprintf(FINFO,"%s is a hard link\n",f_name(file));
+			rprintf(FINFO, RSYNC_NAME
+				": \"%s\" is a hard link\n",f_name(file));
 		return;
 	}

 	if (!S_ISREG(file->mode)) {
-		rprintf(FINFO,"skipping non-regular file %s\n",fname);
+		rprintf(FINFO, RSYNC_NAME
+			": skipping non-regular file \"%s\"\n",fname);
 		return;
 	}

@@ -301,7 +349,7 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 	if ((statret == -1) && (compare_dest != NULL)) {
 		/* try the file at compare_dest instead */
 		int saveerrno = errno;
-		slprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname);
+		snprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname);
 		statret = link_stat(fnamecmpbuf,&st);
 		if (!S_ISREG(st.st_mode))
 			statret = -1;
@@ -317,7 +365,9 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 			if (!dry_run) send_sums(NULL,f_out);
 		} else {
 			if (verbose > 1)
-				rprintf(FERROR,"recv_generator failed to open %s\n",fname);
+				rprintf(FERROR, RSYNC_NAME
+					": recv_generator failed to open \"%s\": %s\n",
+					fname, strerror(errno));
 		}
 		return;
 	}
@@ -333,7 +383,7 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 		return;
 	}

-	if (update_only && st.st_mtime > file->modtime && fnamecmp == fname) {
+	if (update_only && cmp_modtime(st.st_mtime,file->modtime)>0 && fnamecmp == fname) {
 		if (verbose > 1)
 			rprintf(FINFO,"%s is newer\n",fname);
 		return;
@@ -360,7 +410,7 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 	fd = do_open(fnamecmp, O_RDONLY, 0);

 	if (fd == -1) {
-		rprintf(FERROR,"failed to open %s, continuing : %s\n",fnamecmp,strerror(errno));
+		rprintf(FERROR,RSYNC_NAME": failed to open \"%s\", continuing : %s\n",fnamecmp,strerror(errno));
 		/* pretend the file didn't exist */
 		write_int(f_out,i);
 		send_sums(NULL,f_out);
@@ -401,6 +451,11 @@ void generate_files(int f,struct file_list *flist,char *local_name,int f_recv)
 		rprintf(FINFO,"generator starting pid=%d count=%d\n",
 			(int)getpid(),flist->count);

+	/* we expect to just sit around now, so don't exit on a
+	   timeout. If we really get a timeout then the other process should
+	   exit */
+	io_timeout = 0;
+
 	for (i = 0; i < flist->count; i++) {
 		struct file_struct *file = flist->files[i];
 		mode_t saved_mode = file->mode;
@@ -411,6 +466,8 @@ void generate_files(int f,struct file_list *flist,char *local_name,int f_recv)
 		   them. This is then fixed after the files are transferred */
 		if (!am_root && S_ISDIR(file->mode)) {
 			file->mode |= S_IWUSR; /* user write */
+                        /* XXX: Could this be causing a problem on SCO?  Perhaps their
+                         * handling of permissions is strange? */
 		}

 		recv_generator(local_name?local_name:f_name(file),
@@ -428,11 +485,6 @@ void generate_files(int f,struct file_list *flist,char *local_name,int f_recv)

 	write_int(f,-1);

-	/* we expect to just sit around now, so don't exit on a
-	   timeout. If we really get a timeout then the other process should
-	   exit */
-	io_timeout = 0;
-
 	if (remote_version >= 13) {
 		/* in newer versions of the protocol the files can cycle through
 		   the system more than once to catch initial checksum errors */
--- a/hlink.c
+++ b/hlink.c
@@ -1,6 +1,7 @@
 /* 
   Copyright (C) Andrew Tridgell 1996
   Copyright (C) Paul Mackerras 1996
+   Copyright (C) 2002 by Martin Pool <mbp@samba.org>
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -23,19 +24,22 @@ extern int dry_run;
 extern int verbose;

 #if SUPPORT_HARD_LINKS
-static int hlink_compare(struct file_struct *f1,struct file_struct *f2)
+static int hlink_compare(struct file_struct *f1, struct file_struct *f2)
 {
-  if (!S_ISREG(f1->mode) && !S_ISREG(f2->mode)) return 0;
-  if (!S_ISREG(f1->mode)) return -1;
-  if (!S_ISREG(f2->mode)) return 1;
+	if (!S_ISREG(f1->mode) && !S_ISREG(f2->mode))
+		return 0;
+	if (!S_ISREG(f1->mode))
+		return -1;
+	if (!S_ISREG(f2->mode))
+		return 1;

-  if (f1->dev != f2->dev) 
-    return (int)(f1->dev>f2->dev?1:-1);
+	if (f1->dev != f2->dev)
+		return (int) (f1->dev > f2->dev ? 1 : -1);

-  if (f1->inode != f2->inode) 
-    return (int)(f1->inode>f2->inode?1:-1);
+	if (f1->inode != f2->inode)
+		return (int) (f1->inode > f2->inode ? 1 : -1);

-  return file_compare(&f1,&f2);
+	return file_compare(&f1, &f2);
 }


@@ -47,22 +51,25 @@ void init_hard_links(struct file_list *flist)
 {
 #if SUPPORT_HARD_LINKS
 	int i;
-	if (flist->count < 2) return;
+	if (flist->count < 2)
+		return;

-	if (hlink_list) free(hlink_list);
-    
-	if (!(hlink_list = 
-	      (struct file_struct *)malloc(sizeof(hlink_list[0])*flist->count)))
+	if (hlink_list)
+		free(hlink_list);
+
+	if (!(hlink_list =
+	      (struct file_struct *) malloc(sizeof(hlink_list[0]) *
+					    flist->count)))
 		out_of_memory("init_hard_links");

 	for (i = 0; i < flist->count; i++)
-		memcpy(&hlink_list[i], flist->files[i], sizeof(hlink_list[0]));
+		memcpy(&hlink_list[i], flist->files[i],
+		       sizeof(hlink_list[0]));

-	qsort(hlink_list,flist->count,
-	      sizeof(hlink_list[0]),
-	      (int (*)())hlink_compare);
+	qsort(hlink_list, flist->count,
+	      sizeof(hlink_list[0]), (int (*)()) hlink_compare);

-	hlink_count=flist->count;
+	hlink_count = flist->count;
 #endif
 }

@@ -71,86 +78,102 @@ void init_hard_links(struct file_list *flist)
 int check_hard_link(struct file_struct *file)
 {
 #if SUPPORT_HARD_LINKS
-  int low=0,high=hlink_count-1;
-  int ret=0;
+	int low = 0, high = hlink_count - 1;
+	int ret = 0;

-  if (!hlink_list || !S_ISREG(file->mode)) return 0;
+	if (!hlink_list || !S_ISREG(file->mode))
+		return 0;

-  while (low != high) {
-    int mid = (low+high)/2;
-    ret = hlink_compare(&hlink_list[mid],file);
-    if (ret == 0) {
-	    low = mid;
-	    break;
-    }
-    if (ret > 0) 
-      high=mid;
-    else
-      low=mid+1;
-  }
+	while (low != high) {
+		int mid = (low + high) / 2;
+		ret = hlink_compare(&hlink_list[mid], file);
+		if (ret == 0) {
+			low = mid;
+			break;
+		}
+		if (ret > 0)
+			high = mid;
+		else
+			low = mid + 1;
+	}

-  if (hlink_compare(&hlink_list[low],file) != 0) return 0;
+	if (hlink_compare(&hlink_list[low], file) != 0)
+		return 0;

-  if (low > 0 &&
-      S_ISREG(hlink_list[low-1].mode) &&
-      file->dev == hlink_list[low-1].dev &&
-      file->inode == hlink_list[low-1].inode)
-    return 1;
+	if (low > 0 &&
+	    S_ISREG(hlink_list[low - 1].mode) &&
+	    file->dev == hlink_list[low - 1].dev &&
+	    file->inode == hlink_list[low - 1].inode)
+		return 1;
 #endif

-  return 0;
+	return 0;
 }


 #if SUPPORT_HARD_LINKS
 static void hard_link_one(int i)
 {
-	STRUCT_STAT st1,st2;
+	STRUCT_STAT st1, st2;

-	if (link_stat(f_name(&hlink_list[i-1]),&st1) != 0) return;
+	if (link_stat(f_name(&hlink_list[i - 1]), &st1) != 0)
+		return;

-	if (link_stat(f_name(&hlink_list[i]),&st2) != 0) {
-		if (do_link(f_name(&hlink_list[i-1]),f_name(&hlink_list[i])) != 0) {
+	if (link_stat(f_name(&hlink_list[i]), &st2) != 0) {
+		if (do_link
+		    (f_name(&hlink_list[i - 1]),
+		     f_name(&hlink_list[i])) != 0) {
 			if (verbose > 0)
-				rprintf(FINFO,"link %s => %s : %s\n",
+				rprintf(FINFO, "link %s => %s : %s\n",
 					f_name(&hlink_list[i]),
-					f_name(&hlink_list[i-1]),strerror(errno));
+					f_name(&hlink_list[i - 1]),
+					strerror(errno));
 			return;
 		}
 	} else {
-		if (st2.st_dev == st1.st_dev && st2.st_ino == st1.st_ino) return;
-		
+		if (st2.st_dev == st1.st_dev && st2.st_ino == st1.st_ino)
+			return;
+
 		if (robust_unlink(f_name(&hlink_list[i])) != 0 ||
-		    do_link(f_name(&hlink_list[i-1]),f_name(&hlink_list[i])) != 0) {
+		    do_link(f_name(&hlink_list[i - 1]),
+			    f_name(&hlink_list[i])) != 0) {
 			if (verbose > 0)
-				rprintf(FINFO,"link %s => %s : %s\n",
+				rprintf(FINFO, "link %s => %s : %s\n",
 					f_name(&hlink_list[i]),
-					f_name(&hlink_list[i-1]),strerror(errno));
+					f_name(&hlink_list[i - 1]),
+					strerror(errno));
 			return;
 		}
 	}
 	if (verbose > 0)
-		rprintf(FINFO,"%s => %s\n",
-			f_name(&hlink_list[i]),f_name(&hlink_list[i-1]));
+		rprintf(FINFO, "%s => %s\n",
+			f_name(&hlink_list[i]),
+			f_name(&hlink_list[i - 1]));
 }
 #endif

-/* create any hard links in the flist */
-void do_hard_links(struct file_list *flist)
+
+
+/**
+ * Create any hard links in the global hlink_list.  They were put
+ * there by running init_hard_links on the filelist.
+ **/
+void do_hard_links(void)
 {
 #if SUPPORT_HARD_LINKS
 	int i;
-  
-	if (!hlink_list) return;

-	for (i=1;i<hlink_count;i++) {
+	if (!hlink_list)
+		return;
+
+	for (i = 1; i < hlink_count; i++) {
 		if (S_ISREG(hlink_list[i].mode) &&
-		    S_ISREG(hlink_list[i-1].mode) &&
-		    hlink_list[i].basename && hlink_list[i-1].basename &&
-		    hlink_list[i].dev == hlink_list[i-1].dev &&
-		    hlink_list[i].inode == hlink_list[i-1].inode) {
+		    S_ISREG(hlink_list[i - 1].mode) &&
+		    hlink_list[i].basename && hlink_list[i - 1].basename &&
+		    hlink_list[i].dev == hlink_list[i - 1].dev &&
+		    hlink_list[i].inode == hlink_list[i - 1].inode) {
 			hard_link_one(i);
-		}	
+		}
 	}
 #endif
 }
--- a/io.c
+++ b/io.c
@@ -18,7 +18,7 @@
 */

 /*
-  socket and pipe IO utilities used in rsync 
+  Utilities used in rsync 

  tridge, June 1996
  */
@@ -38,9 +38,6 @@ extern int io_timeout;
 extern struct stats stats;

 static int buffer_f_in = -1;
-static int io_error_fd = -1;
-
-static void read_loop(int fd, char *buf, int len);

 void setup_readbuffer(int f_in)
 {
@@ -67,83 +64,39 @@ static void check_timeout(void)
 	}
 }

-/* setup the fd used to propogate errors */
-void io_set_error_fd(int fd)
-{
-	io_error_fd = fd;
-}
-
-/* read some data from the error fd and write it to the write log code */
-static void read_error_fd(void)
-{
-	char buf[200];
-	int n;
-	int fd = io_error_fd;
-	int tag, len;
-
-	io_error_fd = -1;
-
-	read_loop(fd, buf, 4);
-	tag = IVAL(buf, 0);
-
-	len = tag & 0xFFFFFF;
-	tag = tag >> 24;
-	tag -= MPLEX_BASE;
-
-	while (len) {
-		n = len;
-		if (n > (sizeof(buf)-1)) n = sizeof(buf)-1;
-		read_loop(fd, buf, n);
-		rwrite((enum logcode)tag, buf, n);
-		len -= n;
-	}
-
-	io_error_fd = fd;
-}
-

+static char *read_buffer;
+static char *read_buffer_p;
+static int read_buffer_len;
+static int read_buffer_size;
 static int no_flush;
+static int no_flush_read;

 /* read from a socket with IO timeout. return the number of
   bytes read. If no bytes can be read then exit, never return
   a number <= 0 */
-static int read_timeout(int fd, char *buf, int len)
+static int read_timeout(int fd, char *buf, size_t len)
 {
 	int n, ret=0;

+	no_flush_read++;
 	io_flush();
+	no_flush_read--;

 	while (ret == 0) {
 		fd_set fds;
 		struct timeval tv;
-		int fd_count = fd+1;

 		FD_ZERO(&fds);
 		FD_SET(fd, &fds);
-		if (io_error_fd != -1) {
-			FD_SET(io_error_fd, &fds);
-			if (io_error_fd > fd) fd_count = io_error_fd+1;
-		}
-
 		tv.tv_sec = io_timeout?io_timeout:SELECT_TIMEOUT;
 		tv.tv_usec = 0;

-		errno = 0;
-
-		if (select(fd_count, &fds, NULL, NULL, &tv) < 1) {
-			if (errno == EBADF) {
-				exit_cleanup(RERR_SOCKETIO);
-			}
+		if (select(fd+1, &fds, NULL, NULL, &tv) != 1) {
 			check_timeout();
 			continue;
 		}

-		if (io_error_fd != -1 && FD_ISSET(io_error_fd, &fds)) {
-			read_error_fd();
-		}
-
-		if (!FD_ISSET(fd, &fds)) continue;
-
 		n = read(fd, buf, len);

 		if (n > 0) {
@@ -159,6 +112,14 @@ static int read_timeout(int fd, char *buf, int len)
 			continue;
 		}

+		if (n == -1 && 
+		    (errno == EAGAIN || errno == EWOULDBLOCK)) {
+			/* this shouldn't happen, if it does then
+			   sleep for a short time to prevent us
+			   chewing too much CPU */
+			u_sleep(100);
+			continue;
+		}

 		if (n == 0) {
 			if (eof_error) {
@@ -167,9 +128,6 @@ static int read_timeout(int fd, char *buf, int len)
 			exit_cleanup(RERR_STREAMIO);
 		}

-		/* this prevents us trying to write errors on a dead socket */
-		io_multiplexing_close();
-
 		rprintf(FERROR,"read error: %s\n", strerror(errno));
 		exit_cleanup(RERR_STREAMIO);
 	}
@@ -179,7 +137,7 @@ static int read_timeout(int fd, char *buf, int len)

 /* continue trying to read len bytes - don't return until len
   has been read */
-static void read_loop(int fd, char *buf, int len)
+static void read_loop(int fd, char *buf, size_t len)
 {
 	while (len) {
 		int n = read_timeout(fd, buf, len);
@@ -192,9 +150,10 @@ static void read_loop(int fd, char *buf, int len)
 /* read from the file descriptor handling multiplexing - 
   return number of bytes read
   never return <= 0 */
-static int read_unbuffered(int fd, char *buf, int len)
+static int read_unbuffered(int fd, char *buf, size_t len)
 {
 	static int remaining;
+	char ibuf[4];
 	int tag, ret=0;
 	char line[1024];

@@ -210,8 +169,8 @@ static int read_unbuffered(int fd, char *buf, int len)
 			continue;
 		}

-		read_loop(fd, line, 4);
-		tag = IVAL(line, 0);
+		read_loop(fd, ibuf, 4);
+		tag = IVAL(ibuf, 0);

 		remaining = tag & 0xFFFFFF;
 		tag = tag >> 24;
@@ -234,7 +193,7 @@ static int read_unbuffered(int fd, char *buf, int len)
 		read_loop(fd, line, remaining);
 		line[remaining] = 0;

-		rprintf((enum logcode)tag,"%s", line);
+		rprintf(tag,"%s", line);
 		remaining = 0;
 	}

@@ -242,15 +201,64 @@ static int read_unbuffered(int fd, char *buf, int len)
 }


+
+/* This function was added to overcome a deadlock problem when using
+ * ssh.  It looks like we can't allow our receive queue to get full or
+ * ssh will clag up. Uggh.  */
+static void read_check(int f)
+{
+	int n = 8192;
+
+	if (f == -1) return;
+
+	if (read_buffer_len == 0) {
+		read_buffer_p = read_buffer;
+	}
+
+	if (n > MAX_READ_BUFFER/4)
+		n = MAX_READ_BUFFER/4;
+
+	if (read_buffer_p != read_buffer) {
+		memmove(read_buffer,read_buffer_p,read_buffer_len);
+		read_buffer_p = read_buffer;
+	}
+
+	if (n > (read_buffer_size - read_buffer_len)) {
+		read_buffer_size += n;
+		read_buffer = (char *)Realloc(read_buffer,read_buffer_size);
+		if (!read_buffer) out_of_memory("read check");      
+		read_buffer_p = read_buffer;      
+	}
+
+	n = read_unbuffered(f,read_buffer+read_buffer_len,n);
+	read_buffer_len += n;
+}
+
+
 /* do a buffered read from fd. don't return until all N bytes
   have been read. If all N can't be read then exit with an error */
-static void readfd(int fd,char *buffer,int N)
+static void readfd(int fd,char *buffer,size_t N)
 {
 	int  ret;
 	int total=0;  
 	
+	if ((read_buffer_len < N) && (N < 1024)) {
+		read_check(buffer_f_in);
+	}
+	
 	while (total < N) {
+		if (read_buffer_len > 0 && buffer_f_in == fd) {
+			ret = MIN(read_buffer_len,N-total);
+			memcpy(buffer+total,read_buffer_p,ret);
+			read_buffer_p += ret;
+			read_buffer_len -= ret;
+			total += ret;
+			continue;
+		} 
+
+		no_flush_read++;
 		io_flush();
+		no_flush_read--;

 		ret = read_unbuffered(fd,buffer + total,N-total);
 		total += ret;
@@ -295,12 +303,12 @@ int64 read_longint(int f)
 	return ret;
 }

-void read_buf(int f,char *buf,int len)
+void read_buf(int f,char *buf,size_t len)
 {
 	readfd(f,buf,len);
 }

-void read_sbuf(int f,char *buf,int len)
+void read_sbuf(int f,char *buf,size_t len)
 {
 	read_buf(f,buf,len);
 	buf[len] = 0;
@@ -318,12 +326,14 @@ unsigned char read_byte(int f)
 /* write len bytes to fd, possibly reading from buffer_f_in if set
   in order to unclog the pipe. don't return until all len
   bytes have been written */
-static void writefd_unbuffered(int fd,char *buf,int len)
+static void writefd_unbuffered(int fd,char *buf,size_t len)
 {
 	int total = 0;
 	fd_set w_fds, r_fds;
 	int fd_count, count;
 	struct timeval tv;
+	int reading=0;
+	int blocked=0;

 	no_flush++;

@@ -331,50 +341,55 @@ static void writefd_unbuffered(int fd,char *buf,int len)
 		FD_ZERO(&w_fds);
 		FD_ZERO(&r_fds);
 		FD_SET(fd,&w_fds);
-		fd_count = fd;
+		fd_count = fd+1;

-		if (io_error_fd != -1) {
-			FD_SET(io_error_fd,&r_fds);
-			if (io_error_fd > fd_count) 
-				fd_count = io_error_fd;
+		if (!no_flush_read) {
+			reading = (buffer_f_in != -1);
+		}
+
+		if (reading) {
+			FD_SET(buffer_f_in,&r_fds);
+			if (buffer_f_in > fd) 
+				fd_count = buffer_f_in+1;
 		}

 		tv.tv_sec = io_timeout?io_timeout:SELECT_TIMEOUT;
 		tv.tv_usec = 0;

-		errno = 0;
-
-		count = select(fd_count+1,
-			       io_error_fd != -1?&r_fds:NULL,
+		count = select(fd_count,
+			       reading?&r_fds:NULL,
 			       &w_fds,NULL,
 			       &tv);

 		if (count <= 0) {
-			if (errno == EBADF) {
-				exit_cleanup(RERR_SOCKETIO);
-			}
 			check_timeout();
 			continue;
 		}

-		if (io_error_fd != -1 && FD_ISSET(io_error_fd, &r_fds)) {
-			read_error_fd();
+		if (reading && FD_ISSET(buffer_f_in, &r_fds)) {
+			read_check(buffer_f_in);
 		}

 		if (FD_ISSET(fd, &w_fds)) {
-			int ret, n = len-total;
-			
-			ret = write(fd,buf+total,n?n:1);
+			int n = (len-total)>>blocked;
+			int ret = write(fd,buf+total,n?n:1);

 			if (ret == -1 && errno == EINTR) {
 				continue;
 			}

+			if (ret == -1 && 
+			    (errno == EAGAIN || errno == EWOULDBLOCK)) {
+				blocked++;
+				continue;
+			}
+
 			if (ret <= 0) {
 				rprintf(FERROR,"erroring writing %d bytes - exiting\n", len);
 				exit_cleanup(RERR_STREAMIO);
 			}

+			blocked = 0;
 			total += ret;

 			if (io_timeout)
@@ -393,43 +408,22 @@ void io_start_buffering(int fd)
 {
 	if (io_buffer) return;
 	multiplex_out_fd = fd;
-	io_buffer = (char *)malloc(IO_BUFFER_SIZE);
+	io_buffer = (char *)malloc(IO_BUFFER_SIZE+4);
 	if (!io_buffer) out_of_memory("writefd");
 	io_buffer_count = 0;
+
+	/* leave room for the multiplex header in case it's needed */
+	io_buffer += 4;
 }

-/* write an message to a multiplexed stream. If this fails then rsync
-   exits */
-static void mplex_write(int fd, enum logcode code, char *buf, int len)
-{
-	char buffer[4096];
-	int n = len;
-
-	SIVAL(buffer, 0, ((MPLEX_BASE + (int)code)<<24) + len);
-
-	if (n > (sizeof(buffer)-4)) {
-		n = sizeof(buffer)-4;
-	}
-
-	memcpy(&buffer[4], buf, n);
-	writefd_unbuffered(fd, buffer, n+4);
-
-	len -= n;
-	buf += n;
-
-	if (len) {
-		writefd_unbuffered(fd, buf, len);
-	}
-}
-
-
 void io_flush(void)
 {
 	int fd = multiplex_out_fd;
 	if (!io_buffer_count || no_flush) return;

 	if (io_multiplexing_out) {
-		mplex_write(fd, FNONE, io_buffer, io_buffer_count);
+		SIVAL(io_buffer-4, 0, (MPLEX_BASE<<24) + io_buffer_count);
+		writefd_unbuffered(fd, io_buffer-4, io_buffer_count+4);
 	} else {
 		writefd_unbuffered(fd, io_buffer, io_buffer_count);
 	}
@@ -440,16 +434,16 @@ void io_end_buffering(int fd)
 {
 	io_flush();
 	if (!io_multiplexing_out) {
-		free(io_buffer);
+		free(io_buffer-4);
 		io_buffer = NULL;
 	}
 }

-static void writefd(int fd,char *buf,int len)
+static void writefd(int fd,char *buf,size_t len)
 {
 	stats.total_written += len;

-	if (!io_buffer || fd != multiplex_out_fd) {
+	if (!io_buffer) {
 		writefd_unbuffered(fd, buf, len);
 		return;
 	}
@@ -492,7 +486,7 @@ void write_longint(int f, int64 x)
 	writefd(f,b,8);
 }

-void write_buf(int f,char *buf,int len)
+void write_buf(int f,char *buf,size_t len)
 {
 	writefd(f,buf,len);
 }
@@ -509,7 +503,7 @@ void write_byte(int f,unsigned char c)
 	write_buf(f,(char *)&c,1);
 }

-int read_line(int f, char *buf, int maxlen)
+int read_line(int f, char *buf, size_t maxlen)
 {
 	eof_error = 0;

@@ -567,36 +561,31 @@ void io_start_multiplex_in(int fd)
 {
 	multiplex_in_fd = fd;
 	io_flush();
+	if (read_buffer_len) {
+		fprintf(stderr,"ERROR: data in read buffer at mplx start\n");
+		exit_cleanup(RERR_STREAMIO);
+	}
+
 	io_multiplexing_in = 1;
 }

-/* write an message to the multiplexed error stream */
-int io_multiplex_write(enum logcode code, char *buf, int len)
+/* write an message to the error stream */
+int io_multiplex_write(int f, char *buf, size_t len)
 {
 	if (!io_multiplexing_out) return 0;

 	io_flush();
+
+	SIVAL(io_buffer-4, 0, ((MPLEX_BASE + f)<<24) + len);
+	memcpy(io_buffer, buf, len);
+
 	stats.total_written += (len+4);
-	mplex_write(multiplex_out_fd, code, buf, len);
-	return 1;
-}

-/* write a message to the special error fd */
-int io_error_write(int f, enum logcode code, char *buf, int len)
-{
-	if (f == -1) return 0;
-	mplex_write(f, code, buf, len);
+	writefd_unbuffered(multiplex_out_fd, io_buffer-4, len+4);
 	return 1;
 }

-/* stop output multiplexing */
-void io_multiplexing_close(void)
-{
-	io_multiplexing_out = 0;
-}
-
 void io_close_input(int fd)
 {
 	buffer_f_in = -1;
 }
-
--- a/lib/compat.c
+++ b/lib/compat.c
@@ -95,29 +95,17 @@
 }
 #endif

-#ifdef REPLACE_INET_NTOA
- char *rep_inet_ntoa(struct in_addr ip)
-{
-	unsigned char *p = (unsigned char *)&ip.s_addr;
-	static char buf[18];
-#if WORDS_BIGENDIAN
-	slprintf(buf, 18, "%d.%d.%d.%d", 
-		 (int)p[0], (int)p[1], (int)p[2], (int)p[3]);
-#else
-	slprintf(buf, 18, "%d.%d.%d.%d", 
-		 (int)p[3], (int)p[2], (int)p[1], (int)p[0]);
-#endif
-	return buf;
-}
-#endif

 #ifndef HAVE_STRLCPY
-/* like strncpy but does not 0 fill the buffer and always null 
-   terminates. bufsize is the size of the destination buffer */
+/* Like strncpy but does not 0 fill the buffer and always null 
+ * terminates. bufsize is the size of the destination buffer.
+ *
+ * Returns the index of the terminating byte. */
 size_t strlcpy(char *d, const char *s, size_t bufsize)
 {
 	size_t len = strlen(s);
 	size_t ret = len;
+	if (bufsize <= 0) return 0;
 	if (len >= bufsize) len = bufsize-1;
 	memcpy(d, s, len);
 	d[len] = 0;
@@ -146,7 +134,23 @@
 }
 #endif

-#ifndef HAVE_INET_ATON
+#ifdef REPLACE_INET_NTOA
+ char *rep_inet_ntoa(struct in_addr ip)
+{
+	unsigned char *p = (unsigned char *)&ip.s_addr;
+	static char buf[18];
+#if WORDS_BIGENDIAN
+	snprintf(buf, 18, "%d.%d.%d.%d", 
+		 (int)p[0], (int)p[1], (int)p[2], (int)p[3]);
+#else
+	snprintf(buf, 18, "%d.%d.%d.%d", 
+		 (int)p[3], (int)p[2], (int)p[1], (int)p[0]);
+#endif
+	return buf;
+}
+#endif
+
+#ifdef REPLACE_INET_ATON
 int inet_aton(const char *cp, struct in_addr *inp)
 {
 	unsigned int a1, a2, a3, a4;
@@ -154,12 +158,12 @@

 	if (strcmp(cp, "255.255.255.255") == 0) {
 		inp->s_addr = (unsigned) -1;
-		return 1;
+		return 0;
 	}

 	if (sscanf(cp, "%u.%u.%u.%u", &a1, &a2, &a3, &a4) != 4 ||
 	    a1 > 255 || a2 > 255 || a3 > 255 || a4 > 255) {
-		return 1;
+		return 0;
 	}

 	ret = (a1 << 24) | (a2 << 16) | (a3 << 8) | a4;
--- a/lib/getopt.c
+++ b/lib/getopt.c
@@ -1,751 +0,0 @@
-#include "../rsync.h"
-#ifndef HAVE_GETOPT_LONG
-
-/* Getopt for GNU.
-   NOTE: getopt is now part of the C library, so if you don't know what
-   "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu
-   before changing it!
-
-   Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94
-   	Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
-   Ditto for AIX 3.2 and <stdlib.h>.  */
-#ifndef _NO_PROTO
-#define _NO_PROTO
-#endif
-
-/* Comment out all this code if we are using the GNU C Library, and are not
-   actually compiling the library itself.  This code is part of the GNU C
-   Library, but also included in many other GNU distributions.  Compiling
-   and linking in this code is a waste when using the GNU C library
-   (especially if it is a shared library).  Rather than having every GNU
-   program understand `configure --with-gnu-libc' and omit the object files,
-   it is simpler to just do this in the source for each such file.  */
-
-#if defined (_LIBC) || !defined (__GNU_LIBRARY__)
-
-/* This is for other GNU distributions with internationalized messages.
-   The GNU C Library itself does not yet support such messages.  */
-#if HAVE_LIBINTL_H
-# include <libintl.h>
-#else
-# define gettext(msgid) (msgid)
-#endif
-
-/* This version of `getopt' appears to the caller like standard Unix `getopt'
-   but it behaves differently for the user, since it allows the user
-   to intersperse the options with the other arguments.
-
-   As `getopt' works, it permutes the elements of ARGV so that,
-   when it is done, all the options precede everything else.  Thus
-   all application programs are extended to handle flexible argument order.
-
-   Setting the environment variable POSIXLY_CORRECT disables permutation.
-   Then the behavior is completely standard.
-
-   GNU application programs can use a third alternative mode in which
-   they can distinguish the relative order of options and other arguments.  */
-
-/* For communication from `getopt' to the caller.
-   When `getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when `ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-char *optarg = NULL;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to `getopt'.
-
-   On entry to `getopt', zero means this is the first call; initialize.
-
-   When `getopt' returns EOF, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, `optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-/* XXX 1003.2 says this must be 1 before any call.  */
-int optind = 0;
-
-/* The next char to be scanned in the option-element
-   in which the last option character we returned was found.
-   This allows us to pick up the scan where we left off.
-
-   If this is zero, or a null string, it means resume the scan
-   by advancing to the next ARGV-element.  */
-
-static char *nextchar;
-
-/* Callers store zero here to inhibit the error message
-   for unrecognized options.  */
-
-int opterr = 1;
-
-/* Set to an option character which was unrecognized.
-   This must be initialized on some systems to avoid linking in the
-   system's own getopt implementation.  */
-
-int optopt = '?';
-
-/* Describe how to deal with options that follow non-option ARGV-elements.
-
-   If the caller did not specify anything,
-   the default is REQUIRE_ORDER if the environment variable
-   POSIXLY_CORRECT is defined, PERMUTE otherwise.
-
-   REQUIRE_ORDER means don't recognize them as options;
-   stop option processing when the first non-option is seen.
-   This is what Unix does.
-   This mode of operation is selected by either setting the environment
-   variable POSIXLY_CORRECT, or using `+' as the first character
-   of the list of option characters.
-
-   PERMUTE is the default.  We permute the contents of ARGV as we scan,
-   so that eventually all the non-options are at the end.  This allows options
-   to be given in any order, even with programs that were not written to
-   expect this.
-
-   RETURN_IN_ORDER is an option available to programs that were written
-   to expect options and other ARGV-elements in any order and that care about
-   the ordering of the two.  We describe each non-option ARGV-element
-   as if it were the argument of an option with character code 1.
-   Using `-' as the first character of the list of option characters
-   selects this mode of operation.
-
-   The special argument `--' forces an end of option-scanning regardless
-   of the value of `ordering'.  In the case of RETURN_IN_ORDER, only
-   `--' can cause `getopt' to return EOF with `optind' != ARGC.  */
-
-static enum
-{
-  REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
-} ordering;
-
-/* Value of POSIXLY_CORRECT environment variable.  */
-static char *posixly_correct;
-
-#ifdef	__GNU_LIBRARY__
-/* We want to avoid inclusion of string.h with non-GNU libraries
-   because there are many ways it can cause trouble.
-   On some systems, it contains special magic macros that don't work
-   in GCC.  */
-#include <string.h>
-#define	my_index	strchr
-#else
-
-/* Avoid depending on library functions or files
-   whose names are inconsistent.  */
-
-char *getenv ();
-
-static char *
-my_index (str, chr)
-     const char *str;
-     int chr;
-{
-  while (*str)
-    {
-      if (*str == chr)
-	return (char *) str;
-      str++;
-    }
-  return 0;
-}
-
-/* If using GCC, we can safely declare strlen this way.
-   If not using GCC, it is ok not to declare it.  */
-#ifdef __GNUC__
-/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
-   That was relevant to code that was here before.  */
-#if !defined (__STDC__) || !__STDC__
-/* gcc with -traditional declares the built-in strlen to return int,
-   and has done so at least since version 2.4.5. -- rms.  */
-extern int strlen (const char *);
-#endif /* not __STDC__ */
-#endif /* __GNUC__ */
-
-#endif /* not __GNU_LIBRARY__ */
-
-/* Handle permutation of arguments.  */
-
-/* Describe the part of ARGV that contains non-options that have
-   been skipped.  `first_nonopt' is the index in ARGV of the first of them;
-   `last_nonopt' is the index after the last of them.  */
-
-static int first_nonopt;
-static int last_nonopt;
-
-/* Exchange two adjacent subsequences of ARGV.
-   One subsequence is elements [first_nonopt,last_nonopt)
-   which contains all the non-options that have been skipped so far.
-   The other is elements [last_nonopt,optind), which contains all
-   the options processed since those non-options were skipped.
-
-   `first_nonopt' and `last_nonopt' are relocated so that they describe
-   the new indices of the non-options in ARGV after they are moved.  */
-
-static void
-exchange (argv)
-     char **argv;
-{
-  int bottom = first_nonopt;
-  int middle = last_nonopt;
-  int top = optind;
-  char *tem;
-
-  /* Exchange the shorter segment with the far end of the longer segment.
-     That puts the shorter segment into the right place.
-     It leaves the longer segment in the right place overall,
-     but it consists of two parts that need to be swapped next.  */
-
-  while (top > middle && middle > bottom)
-    {
-      if (top - middle > middle - bottom)
-	{
-	  /* Bottom segment is the short one.  */
-	  int len = middle - bottom;
-	  register int i;
-
-	  /* Swap it with the top part of the top segment.  */
-	  for (i = 0; i < len; i++)
-	    {
-	      tem = argv[bottom + i];
-	      argv[bottom + i] = argv[top - (middle - bottom) + i];
-	      argv[top - (middle - bottom) + i] = tem;
-	    }
-	  /* Exclude the moved bottom segment from further swapping.  */
-	  top -= len;
-	}
-      else
-	{
-	  /* Top segment is the short one.  */
-	  int len = top - middle;
-	  register int i;
-
-	  /* Swap it with the bottom part of the bottom segment.  */
-	  for (i = 0; i < len; i++)
-	    {
-	      tem = argv[bottom + i];
-	      argv[bottom + i] = argv[middle + i];
-	      argv[middle + i] = tem;
-	    }
-	  /* Exclude the moved top segment from further swapping.  */
-	  bottom += len;
-	}
-    }
-
-  /* Update records for the slots the non-options now occupy.  */
-
-  first_nonopt += (optind - last_nonopt);
-  last_nonopt = optind;
-}
-
-/* Initialize the internal data when the first call is made.  */
-
-static const char *
-_getopt_initialize (optstring)
-     const char *optstring;
-{
-  /* Start processing options with ARGV-element 1 (since ARGV-element 0
-     is the program name); the sequence of previously skipped
-     non-option ARGV-elements is empty.  */
-
-  first_nonopt = last_nonopt = optind = 1;
-
-  nextchar = NULL;
-
-  posixly_correct = getenv ("POSIXLY_CORRECT");
-
-  /* Determine how to handle the ordering of options and nonoptions.  */
-
-  if (optstring[0] == '-')
-    {
-      ordering = RETURN_IN_ORDER;
-      ++optstring;
-    }
-  else if (optstring[0] == '+')
-    {
-      ordering = REQUIRE_ORDER;
-      ++optstring;
-    }
-  else if (posixly_correct != NULL)
-    ordering = REQUIRE_ORDER;
-  else
-    ordering = PERMUTE;
-
-  return optstring;
-}
-
-/* Scan elements of ARGV (whose length is ARGC) for option characters
-   given in OPTSTRING.
-
-   If an element of ARGV starts with '-', and is not exactly "-" or "--",
-   then it is an option element.  The characters of this element
-   (aside from the initial '-') are option characters.  If `getopt'
-   is called repeatedly, it returns successively each of the option characters
-   from each of the option elements.
-
-   If `getopt' finds another option character, it returns that character,
-   updating `optind' and `nextchar' so that the next call to `getopt' can
-   resume the scan with the following option character or ARGV-element.
-
-   If there are no more option characters, `getopt' returns `EOF'.
-   Then `optind' is the index in ARGV of the first ARGV-element
-   that is not an option.  (The ARGV-elements have been permuted
-   so that those that are not options now come last.)
-
-   OPTSTRING is a string containing the legitimate option characters.
-   If an option character is seen that is not listed in OPTSTRING,
-   return '?' after printing an error message.  If you set `opterr' to
-   zero, the error message is suppressed but we still return '?'.
-
-   If a char in OPTSTRING is followed by a colon, that means it wants an arg,
-   so the following text in the same ARGV-element, or the text of the following
-   ARGV-element, is returned in `optarg'.  Two colons mean an option that
-   wants an optional arg; if there is text in the current ARGV-element,
-   it is returned in `optarg', otherwise `optarg' is set to zero.
-
-   If OPTSTRING starts with `-' or `+', it requests different methods of
-   handling the non-option ARGV-elements.
-   See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
-
-   Long-named options begin with `--' instead of `-'.
-   Their names may be abbreviated as long as the abbreviation is unique
-   or is an exact match for some defined option.  If they have an
-   argument, it follows the option name in the same ARGV-element, separated
-   from the option name by a `=', or else the in next ARGV-element.
-   When `getopt' finds a long-named option, it returns 0 if that option's
-   `flag' field is nonzero, the value of the option's `val' field
-   if the `flag' field is zero.
-
-   The elements of ARGV aren't really const, because we permute them.
-   But we pretend they're const in the prototype to be compatible
-   with other systems.
-
-   LONGOPTS is a vector of `struct option' terminated by an
-   element containing a name which is zero.
-
-   LONGIND returns the index in LONGOPT of the long-named option found.
-   It is only valid when a long-named option has been found by the most
-   recent call.
-
-   If LONG_ONLY is nonzero, '-' as well as '--' can introduce
-   long-named options.  */
-
-int
-_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
-     int argc;
-     char *const *argv;
-     const char *optstring;
-     const struct option *longopts;
-     int *longind;
-     int long_only;
-{
-  optarg = NULL;
-
-  if (optind == 0)
-    optstring = _getopt_initialize (optstring);
-
-  if (nextchar == NULL || *nextchar == '\0')
-    {
-      /* Advance to the next ARGV-element.  */
-
-      if (ordering == PERMUTE)
-	{
-	  /* If we have just processed some options following some non-options,
-	     exchange them so that the options come first.  */
-
-	  if (first_nonopt != last_nonopt && last_nonopt != optind)
-	    exchange ((char **) argv);
-	  else if (last_nonopt != optind)
-	    first_nonopt = optind;
-
-	  /* Skip any additional non-options
-	     and extend the range of non-options previously skipped.  */
-
-	  while (optind < argc
-		 && (argv[optind][0] != '-' || argv[optind][1] == '\0'))
-	    optind++;
-	  last_nonopt = optind;
-	}
-
-      /* The special ARGV-element `--' means premature end of options.
-	 Skip it like a null option,
-	 then exchange with previous non-options as if it were an option,
-	 then skip everything else like a non-option.  */
-
-      if (optind != argc && !strcmp (argv[optind], "--"))
-	{
-	  optind++;
-
-	  if (first_nonopt != last_nonopt && last_nonopt != optind)
-	    exchange ((char **) argv);
-	  else if (first_nonopt == last_nonopt)
-	    first_nonopt = optind;
-	  last_nonopt = argc;
-
-	  optind = argc;
-	}
-
-      /* If we have done all the ARGV-elements, stop the scan
-	 and back over any non-options that we skipped and permuted.  */
-
-      if (optind == argc)
-	{
-	  /* Set the next-arg-index to point at the non-options
-	     that we previously skipped, so the caller will digest them.  */
-	  if (first_nonopt != last_nonopt)
-	    optind = first_nonopt;
-	  return EOF;
-	}
-
-      /* If we have come to a non-option and did not permute it,
-	 either stop the scan or describe it to the caller and pass it by.  */
-
-      if ((argv[optind][0] != '-' || argv[optind][1] == '\0'))
-	{
-	  if (ordering == REQUIRE_ORDER)
-	    return EOF;
-	  optarg = argv[optind++];
-	  return 1;
-	}
-
-      /* We have found another option-ARGV-element.
-	 Skip the initial punctuation.  */
-
-      nextchar = (argv[optind] + 1
-		  + (longopts != NULL && argv[optind][1] == '-'));
-    }
-
-  /* Decode the current option-ARGV-element.  */
-
-  /* Check whether the ARGV-element is a long option.
-
-     If long_only and the ARGV-element has the form "-f", where f is
-     a valid short option, don't consider it an abbreviated form of
-     a long option that starts with f.  Otherwise there would be no
-     way to give the -f short option.
-
-     On the other hand, if there's a long option "fubar" and
-     the ARGV-element is "-fu", do consider that an abbreviation of
-     the long option, just like "--fu", and not "-f" with arg "u".
-
-     This distinction seems to be the most useful approach.  */
-
-  if (longopts != NULL
-      && (argv[optind][1] == '-'
-	  || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
-    {
-      char *nameend;
-      const struct option *p;
-      const struct option *pfound = NULL;
-      int exact = 0;
-      int ambig = 0;
-      int indfound;
-      int option_index;
-
-      for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
-	/* Do nothing.  */ ;
-
-      /* Test all long options for either exact match
-	 or abbreviated matches.  */
-      for (p = longopts, option_index = 0; p->name; p++, option_index++)
-	if (!strncmp (p->name, nextchar, nameend - nextchar))
-	  {
-	    if (nameend - nextchar == strlen (p->name))
-	      {
-		/* Exact match found.  */
-		pfound = p;
-		indfound = option_index;
-		exact = 1;
-		break;
-	      }
-	    else if (pfound == NULL)
-	      {
-		/* First nonexact match found.  */
-		pfound = p;
-		indfound = option_index;
-	      }
-	    else
-	      /* Second or later nonexact match found.  */
-	      ambig = 1;
-	  }
-
-      if (ambig && !exact)
-	{
-	  if (opterr)
-	    fprintf (stderr, gettext ("%s: option `%s' is ambiguous\n"),
-		     argv[0], argv[optind]);
-	  nextchar += strlen (nextchar);
-	  optind++;
-	  return '?';
-	}
-
-      if (pfound != NULL)
-	{
-	  option_index = indfound;
-	  optind++;
-	  if (*nameend)
-	    {
-	      /* Don't test has_arg with >, because some C compilers don't
-		 allow it to be used on enums.  */
-	      if (pfound->has_arg)
-		optarg = nameend + 1;
-	      else
-		{
-		  if (opterr)
-		   if (argv[optind - 1][1] == '-')
-		    /* --option */
-		    fprintf (stderr,
-		     gettext ("%s: option `--%s' doesn't allow an argument\n"),
-		     argv[0], pfound->name);
-		   else
-		    /* +option or -option */
-		    fprintf (stderr,
-		     gettext ("%s: option `%c%s' doesn't allow an argument\n"),
-		     argv[0], argv[optind - 1][0], pfound->name);
-
-		  nextchar += strlen (nextchar);
-		  return '?';
-		}
-	    }
-	  else if (pfound->has_arg == 1)
-	    {
-	      if (optind < argc)
-		optarg = argv[optind++];
-	      else
-		{
-		  if (opterr)
-		    fprintf (stderr,
-			   gettext ("%s: option `%s' requires an argument\n"),
-			   argv[0], argv[optind - 1]);
-		  nextchar += strlen (nextchar);
-		  return optstring[0] == ':' ? ':' : '?';
-		}
-	    }
-	  nextchar += strlen (nextchar);
-	  if (longind != NULL)
-	    *longind = option_index;
-	  if (pfound->flag)
-	    {
-	      *(pfound->flag) = pfound->val;
-	      return 0;
-	    }
-	  return pfound->val;
-	}
-
-      /* Can't find it as a long option.  If this is not getopt_long_only,
-	 or the option starts with '--' or is not a valid short
-	 option, then it's an error.
-	 Otherwise interpret it as a short option.  */
-      if (!long_only || argv[optind][1] == '-'
-	  || my_index (optstring, *nextchar) == NULL)
-	{
-	  if (opterr)
-	    {
-	      if (argv[optind][1] == '-')
-		/* --option */
-		fprintf (stderr, gettext ("%s: unrecognized option `--%s'\n"),
-			 argv[0], nextchar);
-	      else
-		/* +option or -option */
-		fprintf (stderr, gettext ("%s: unrecognized option `%c%s'\n"),
-			 argv[0], argv[optind][0], nextchar);
-	    }
-	  nextchar = (char *) "";
-	  optind++;
-	  return '?';
-	}
-    }
-
-  /* Look at and handle the next short option-character.  */
-
-  {
-    char c = *nextchar++;
-    char *temp = my_index (optstring, c);
-
-    /* Increment `optind' when we start to process its last character.  */
-    if (*nextchar == '\0')
-      ++optind;
-
-    if (temp == NULL || c == ':')
-      {
-	if (opterr)
-	  {
-	    if (posixly_correct)
-	      /* 1003.2 specifies the format of this message.  */
-	      fprintf (stderr, gettext ("%s: illegal option -- %c\n"),
-		       argv[0], c);
-	    else
-	      fprintf (stderr, gettext ("%s: invalid option -- %c\n"),
-		       argv[0], c);
-	  }
-	optopt = c;
-	return '?';
-      }
-    if (temp[1] == ':')
-      {
-	if (temp[2] == ':')
-	  {
-	    /* This is an option that accepts an argument optionally.  */
-	    if (*nextchar != '\0')
-	      {
-		optarg = nextchar;
-		optind++;
-	      }
-	    else
-	      optarg = NULL;
-	    nextchar = NULL;
-	  }
-	else
-	  {
-	    /* This is an option that requires an argument.  */
-	    if (*nextchar != '\0')
-	      {
-		optarg = nextchar;
-		/* If we end this ARGV-element by taking the rest as an arg,
-		   we must advance to the next element now.  */
-		optind++;
-	      }
-	    else if (optind == argc)
-	      {
-		if (opterr)
-		  {
-		    /* 1003.2 specifies the format of this message.  */
-		    fprintf (stderr,
-			   gettext ("%s: option requires an argument -- %c\n"),
-			   argv[0], c);
-		  }
-		optopt = c;
-		if (optstring[0] == ':')
-		  c = ':';
-		else
-		  c = '?';
-	      }
-	    else
-	      /* We already incremented `optind' once;
-		 increment it again when taking next ARGV-elt as argument.  */
-	      optarg = argv[optind++];
-	    nextchar = NULL;
-	  }
-      }
-    return c;
-  }
-}
-
-int
-getopt (argc, argv, optstring)
-     int argc;
-     char *const *argv;
-     const char *optstring;
-{
-  return _getopt_internal (argc, argv, optstring,
-			   (const struct option *) 0,
-			   (int *) 0,
-			   0);
-}
-
-int
-getopt_long (argc, argv, options, long_options, opt_index)
-     int argc;
-     char *const *argv;
-     const char *options;
-     const struct option *long_options;
-     int *opt_index;
-{
-  return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
-}
-
-#endif	/* _LIBC or not __GNU_LIBRARY__.  */
-
-#ifdef TEST
-
-/* Compile with -DTEST to make an executable for use in testing
-   the above definition of `getopt'.  */
-
-int
-main (argc, argv)
-     int argc;
-     char **argv;
-{
-  int c;
-  int digit_optind = 0;
-
-  while (1)
-    {
-      int this_option_optind = optind ? optind : 1;
-
-      c = getopt (argc, argv, "abc:d:0123456789");
-      if (c == EOF)
-	break;
-
-      switch (c)
-	{
-	case '0':
-	case '1':
-	case '2':
-	case '3':
-	case '4':
-	case '5':
-	case '6':
-	case '7':
-	case '8':
-	case '9':
-	  if (digit_optind != 0 && digit_optind != this_option_optind)
-	    printf ("digits occur in two different argv-elements.\n");
-	  digit_optind = this_option_optind;
-	  printf ("option %c\n", c);
-	  break;
-
-	case 'a':
-	  printf ("option a\n");
-	  break;
-
-	case 'b':
-	  printf ("option b\n");
-	  break;
-
-	case 'c':
-	  printf ("option c with value `%s'\n", optarg);
-	  break;
-
-	case '?':
-	  break;
-
-	default:
-	  printf ("?? getopt returned character code 0%o ??\n", c);
-	}
-    }
-
-  if (optind < argc)
-    {
-      printf ("non-option ARGV-elements: ");
-      while (optind < argc)
-	printf ("%s ", argv[optind++]);
-      printf ("\n");
-    }
-
-  exit (0);
-}
-
-#endif /* TEST */
-#else  /* HAVE_GETOPT_LONG */
-void getopt_dummy(void) {}
-#endif
--- a/lib/getopt.h
+++ b/lib/getopt.h
@@ -1,129 +0,0 @@
-/* Declarations for getopt.
-   Copyright (C) 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 2, or (at your option) any
-   later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-#ifndef _GETOPT_H
-#define _GETOPT_H 1
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-/* For communication from `getopt' to the caller.
-   When `getopt' finds an option that takes an argument,
-   the argument value is returned here.
-   Also, when `ordering' is RETURN_IN_ORDER,
-   each non-option ARGV-element is returned here.  */
-
-extern char *optarg;
-
-/* Index in ARGV of the next element to be scanned.
-   This is used for communication to and from the caller
-   and for communication between successive calls to `getopt'.
-
-   On entry to `getopt', zero means this is the first call; initialize.
-
-   When `getopt' returns EOF, this is the index of the first of the
-   non-option elements that the caller should itself scan.
-
-   Otherwise, `optind' communicates from one call to the next
-   how much of ARGV has been scanned so far.  */
-
-extern int optind;
-
-/* Callers store zero here to inhibit the error message `getopt' prints
-   for unrecognized options.  */
-
-extern int opterr;
-
-/* Set to an option character which was unrecognized.  */
-
-extern int optopt;
-
-/* Describe the long-named options requested by the application.
-   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
-   of `struct option' terminated by an element containing a name which is
-   zero.
-
-   The field `has_arg' is:
-   no_argument		(or 0) if the option does not take an argument,
-   required_argument	(or 1) if the option requires an argument,
-   optional_argument 	(or 2) if the option takes an optional argument.
-
-   If the field `flag' is not NULL, it points to a variable that is set
-   to the value given in the field `val' when the option is found, but
-   left unchanged if the option is not found.
-
-   To have a long-named option do something other than set an `int' to
-   a compiled-in constant, such as set a value from `optarg', set the
-   option's `flag' field to zero and its `val' field to a nonzero
-   value (the equivalent single-letter option character, if there is
-   one).  For long options that have a zero `flag' field, `getopt'
-   returns the contents of the `val' field.  */
-
-struct option
-{
-#if defined (__STDC__) && __STDC__
-  const char *name;
-#else
-  char *name;
-#endif
-  /* has_arg can't be an enum because some compilers complain about
-     type mismatches in all the code that assumes it is an int.  */
-  int has_arg;
-  int *flag;
-  int val;
-};
-
-/* Names for the values of the `has_arg' field of `struct option'.  */
-
-#define	no_argument		0
-#define required_argument	1
-#define optional_argument	2
-
-#if defined (__STDC__) && __STDC__
-#ifdef __GNU_LIBRARY__
-/* Many other libraries have conflicting prototypes for getopt, with
-   differences in the consts, in stdlib.h.  To avoid compilation
-   errors, only prototype getopt for the GNU C library.  */
-extern int getopt (int argc, char *const *argv, const char *shortopts);
-#else /* not __GNU_LIBRARY__ */
-extern int getopt ();
-#endif /* __GNU_LIBRARY__ */
-extern int getopt_long (int argc, char *const *argv, const char *shortopts,
-		        const struct option *longopts, int *longind);
-extern int getopt_long_only (int argc, char *const *argv,
-			     const char *shortopts,
-		             const struct option *longopts, int *longind);
-
-/* Internal only.  Users should not call this directly.  */
-extern int _getopt_internal (int argc, char *const *argv,
-			     const char *shortopts,
-		             const struct option *longopts, int *longind,
-			     int long_only);
-#else /* not __STDC__ */
-extern int getopt ();
-extern int getopt_long ();
-extern int getopt_long_only ();
-
-extern int _getopt_internal ();
-#endif /* __STDC__ */
-
-#ifdef	__cplusplus
-}
-#endif
-
-#endif /* _GETOPT_H */
--- a/lib/inet_ntop.c
+++ b/lib/inet_ntop.c
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 1996-2001  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#include "rsync.h"
+
+#define NS_INT16SZ	 2
+#define NS_IN6ADDRSZ	16
+
+/*
+ * WARNING: Don't even consider trying to compile this on a system where
+ * sizeof(int) < 4.  sizeof(int) > 4 is fine; all the world's not a VAX.
+ */
+
+static const char *inet_ntop4(const unsigned char *src, char *dst,
+			      size_t size);
+
+#ifdef AF_INET6
+static const char *inet_ntop6(const unsigned char *src, char *dst,
+			      size_t size);
+#endif
+
+/* char *
+ * isc_net_ntop(af, src, dst, size)
+ *	convert a network format address to presentation format.
+ * return:
+ *	pointer to presentation format address (`dst'), or NULL (see errno).
+ * author:
+ *	Paul Vixie, 1996.
+ */
+const char *
+inet_ntop(int af, const void *src, char *dst, size_t size)
+{
+	switch (af) {
+	case AF_INET:
+		return (inet_ntop4(src, dst, size));
+#ifdef AF_INET6
+	case AF_INET6:
+		return (inet_ntop6(src, dst, size));
+#endif
+	default:
+		errno = EAFNOSUPPORT;
+		return (NULL);
+	}
+	/* NOTREACHED */
+}
+
+/* const char *
+ * inet_ntop4(src, dst, size)
+ *	format an IPv4 address
+ * return:
+ *	`dst' (as a const)
+ * notes:
+ *	(1) uses no statics
+ *	(2) takes a unsigned char* not an in_addr as input
+ * author:
+ *	Paul Vixie, 1996.
+ */
+static const char *
+inet_ntop4(const unsigned char *src, char *dst, size_t size)
+{
+	static const char *fmt = "%u.%u.%u.%u";
+	char tmp[sizeof "255.255.255.255"];
+
+	if ((size_t)sprintf(tmp, fmt, src[0], src[1], src[2], src[3]) >= size)
+	{
+		errno = ENOSPC;
+		return (NULL);
+	}
+	strcpy(dst, tmp);
+
+	return (dst);
+}
+
+/* const char *
+ * isc_inet_ntop6(src, dst, size)
+ *	convert IPv6 binary address into presentation (printable) format
+ * author:
+ *	Paul Vixie, 1996.
+ */
+#ifdef AF_INET6
+static const char *
+inet_ntop6(const unsigned char *src, char *dst, size_t size)
+{
+	/*
+	 * Note that int32_t and int16_t need only be "at least" large enough
+	 * to contain a value of the specified size.  On some systems, like
+	 * Crays, there is no such thing as an integer variable with 16 bits.
+	 * Keep this in mind if you think this function should have been coded
+	 * to use pointer overlays.  All the world's not a VAX.
+	 */
+	char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], *tp;
+	struct { int base, len; } best, cur;
+	unsigned int words[NS_IN6ADDRSZ / NS_INT16SZ];
+	int i;
+
+	/*
+	 * Preprocess:
+	 *	Copy the input (bytewise) array into a wordwise array.
+	 *	Find the longest run of 0x00's in src[] for :: shorthanding.
+	 */
+	memset(words, '\0', sizeof words);
+	for (i = 0; i < NS_IN6ADDRSZ; i++)
+		words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3));
+	best.base = -1;
+	cur.base = -1;
+	for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) {
+		if (words[i] == 0) {
+			if (cur.base == -1)
+				cur.base = i, cur.len = 1;
+			else
+				cur.len++;
+		} else {
+			if (cur.base != -1) {
+				if (best.base == -1 || cur.len > best.len)
+					best = cur;
+				cur.base = -1;
+			}
+		}
+	}
+	if (cur.base != -1) {
+		if (best.base == -1 || cur.len > best.len)
+			best = cur;
+	}
+	if (best.base != -1 && best.len < 2)
+		best.base = -1;
+
+	/*
+	 * Format the result.
+	 */
+	tp = tmp;
+	for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++) {
+		/* Are we inside the best run of 0x00's? */
+		if (best.base != -1 && i >= best.base &&
+		    i < (best.base + best.len)) {
+			if (i == best.base)
+				*tp++ = ':';
+			continue;
+		}
+		/* Are we following an initial run of 0x00s or any real hex? */
+		if (i != 0)
+			*tp++ = ':';
+		/* Is this address an encapsulated IPv4? */
+		if (i == 6 && best.base == 0 &&
+		    (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) {
+			if (!inet_ntop4(src+12, tp,
+					sizeof tmp - (tp - tmp)))
+				return (NULL);
+			tp += strlen(tp);
+			break;
+		}
+		tp += sprintf(tp, "%x", words[i]);
+	}
+	/* Was it a trailing run of 0x00's? */
+	if (best.base != -1 && (best.base + best.len) ==
+	    (NS_IN6ADDRSZ / NS_INT16SZ))
+		*tp++ = ':';
+	*tp++ = '\0';
+
+	/*
+	 * Check for overflow, copy, and we're done.
+	 */
+	if ((size_t)(tp - tmp) > size) {
+		errno = ENOSPC;
+		return (NULL);
+	}
+	strcpy(dst, tmp);
+	return (dst);
+}
+#endif /* AF_INET6 */
--- a/lib/inet_pton.c
+++ b/lib/inet_pton.c
@@ -0,0 +1,210 @@
+/*
+ * Copyright (C) 1996-2001  Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+ * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+ * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "rsync.h"
+
+#define NS_INT16SZ	 2
+#define NS_INADDRSZ	 4
+#define NS_IN6ADDRSZ	16
+
+/*
+ * WARNING: Don't even consider trying to compile this on a system where
+ * sizeof(int) < 4.  sizeof(int) > 4 is fine; all the world's not a VAX.
+ */
+
+static int inet_pton4(const char *src, unsigned char *dst);
+static int inet_pton6(const char *src, unsigned char *dst);
+
+/* int
+ * isc_net_pton(af, src, dst)
+ *	convert from presentation format (which usually means ASCII printable)
+ *	to network format (which is usually some kind of binary format).
+ * return:
+ *	1 if the address was valid for the specified address family
+ *	0 if the address wasn't valid (`dst' is untouched in this case)
+ *	-1 if some other error occurred (`dst' is untouched in this case, too)
+ * author:
+ *	Paul Vixie, 1996.
+ */
+int
+inet_pton(int af,
+	  const char *src,
+	  void *dst)
+{
+	switch (af) {
+	case AF_INET:
+		return (inet_pton4(src, dst));
+#ifdef INET6
+	case AF_INET6:
+		return (inet_pton6(src, dst));
+#endif
+	default:
+		errno = EAFNOSUPPORT;
+		return (-1);
+	}
+	/* NOTREACHED */
+}
+
+/* int
+ * inet_pton4(src, dst)
+ *	like inet_aton() but without all the hexadecimal and shorthand.
+ * return:
+ *	1 if `src' is a valid dotted quad, else 0.
+ * notice:
+ *	does not touch `dst' unless it's returning 1.
+ * author:
+ *	Paul Vixie, 1996.
+ */
+static int
+inet_pton4(src, dst)
+	const char *src;
+	unsigned char *dst;
+{
+	static const char digits[] = "0123456789";
+	int saw_digit, octets, ch;
+	unsigned char tmp[NS_INADDRSZ], *tp;
+
+	saw_digit = 0;
+	octets = 0;
+	*(tp = tmp) = 0;
+	while ((ch = *src++) != '\0') {
+		const char *pch;
+
+		if ((pch = strchr(digits, ch)) != NULL) {
+			unsigned int new = *tp * 10 + (pch - digits);
+
+			if (new > 255)
+				return (0);
+			*tp = new;
+			if (! saw_digit) {
+				if (++octets > 4)
+					return (0);
+				saw_digit = 1;
+			}
+		} else if (ch == '.' && saw_digit) {
+			if (octets == 4)
+				return (0);
+			*++tp = 0;
+			saw_digit = 0;
+		} else
+			return (0);
+	}
+	if (octets < 4)
+		return (0);
+	memcpy(dst, tmp, NS_INADDRSZ);
+	return (1);
+}
+
+/* int
+ * inet_pton6(src, dst)
+ *	convert presentation level address to network order binary form.
+ * return:
+ *	1 if `src' is a valid [RFC1884 2.2] address, else 0.
+ * notice:
+ *	(1) does not touch `dst' unless it's returning 1.
+ *	(2) :: in a full address is silently ignored.
+ * credit:
+ *	inspired by Mark Andrews.
+ * author:
+ *	Paul Vixie, 1996.
+ */
+#ifdef INET6
+static int
+inet_pton6(src, dst)
+	const char *src;
+	unsigned char *dst;
+{
+	static const char xdigits_l[] = "0123456789abcdef",
+			  xdigits_u[] = "0123456789ABCDEF";
+	unsigned char tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp;
+	const char *xdigits, *curtok;
+	int ch, saw_xdigit;
+	unsigned int val;
+
+	memset((tp = tmp), '\0', NS_IN6ADDRSZ);
+	endp = tp + NS_IN6ADDRSZ;
+	colonp = NULL;
+	/* Leading :: requires some special handling. */
+	if (*src == ':')
+		if (*++src != ':')
+			return (0);
+	curtok = src;
+	saw_xdigit = 0;
+	val = 0;
+	while ((ch = *src++) != '\0') {
+		const char *pch;
+
+		if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
+			pch = strchr((xdigits = xdigits_u), ch);
+		if (pch != NULL) {
+			val <<= 4;
+			val |= (pch - xdigits);
+			if (val > 0xffff)
+				return (0);
+			saw_xdigit = 1;
+			continue;
+		}
+		if (ch == ':') {
+			curtok = src;
+			if (!saw_xdigit) {
+				if (colonp)
+					return (0);
+				colonp = tp;
+				continue;
+			}
+			if (tp + NS_INT16SZ > endp)
+				return (0);
+			*tp++ = (unsigned char) (val >> 8) & 0xff;
+			*tp++ = (unsigned char) val & 0xff;
+			saw_xdigit = 0;
+			val = 0;
+			continue;
+		}
+		if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) &&
+		    inet_pton4(curtok, tp) > 0) {
+			tp += NS_INADDRSZ;
+			saw_xdigit = 0;
+			break;	/* '\0' was seen by inet_pton4(). */
+		}
+		return (0);
+	}
+	if (saw_xdigit) {
+		if (tp + NS_INT16SZ > endp)
+			return (0);
+		*tp++ = (unsigned char) (val >> 8) & 0xff;
+		*tp++ = (unsigned char) val & 0xff;
+	}
+	if (colonp != NULL) {
+		/*
+		 * Since some memmove()'s erroneously fail to handle
+		 * overlapping regions, we'll do the shift by hand.
+		 */
+		const int n = tp - colonp;
+		int i;
+
+		for (i = 1; i <= n; i++) {
+			endp[- i] = colonp[n - i];
+			colonp[n - i] = 0;
+		}
+		tp = endp;
+	}
+	if (tp != endp)
+		return (0);
+	memcpy(dst, tmp, NS_IN6ADDRSZ);
+	return (1);
+}
+#endif
--- a/lib/mdfour.c
+++ b/lib/mdfour.c
@@ -28,30 +28,23 @@

 static struct mdfour *m;

-#define F(X,Y,Z) (((X)&(Y)) | ((~(X))&(Z)))
-#define G(X,Y,Z) (((X)&(Y)) | ((X)&(Z)) | ((Y)&(Z)))
-#define H(X,Y,Z) ((X)^(Y)^(Z))
-#ifdef LARGE_INT32
-#define lshift(x,s) ((((x)<<(s))&0xFFFFFFFF) | (((x)>>(32-(s)))&0xFFFFFFFF))
-#else
-#define lshift(x,s) (((x)<<(s)) | ((x)>>(32-(s))))
-#endif
+#define MASK32 (0xffffffff)

-#define ROUND1(a,b,c,d,k,s) a = lshift((uint32)(a + F(b,c,d) + X[k]), s)
-#define ROUND2(a,b,c,d,k,s) a = lshift((uint32)(a + G(b,c,d) + X[k] + 0x5A827999),s)
-#define ROUND3(a,b,c,d,k,s) a = lshift((uint32)(a + H(b,c,d) + X[k] + 0x6ED9EBA1),s)
+#define F(X,Y,Z) ((((X)&(Y)) | ((~(X))&(Z))))
+#define G(X,Y,Z) ((((X)&(Y)) | ((X)&(Z)) | ((Y)&(Z))))
+#define H(X,Y,Z) (((X)^(Y)^(Z)))
+#define lshift(x,s) (((((x)<<(s))&MASK32) | (((x)>>(32-(s)))&MASK32)))
+
+#define ROUND1(a,b,c,d,k,s) a = lshift((a + F(b,c,d) + M[k])&MASK32, s)
+#define ROUND2(a,b,c,d,k,s) a = lshift((a + G(b,c,d) + M[k] + 0x5A827999)&MASK32,s)
+#define ROUND3(a,b,c,d,k,s) a = lshift((a + H(b,c,d) + M[k] + 0x6ED9EBA1)&MASK32,s)

 /* this applies md4 to 64 byte chunks */
 static void mdfour64(uint32 *M)
 {
-	int j;
 	uint32 AA, BB, CC, DD;
-	uint32 X[16];
 	uint32 A,B,C,D;

-	for (j=0;j<16;j++)
-		X[j] = M[j];
-
 	A = m->A; B = m->B; C = m->C; D = m->D; 
 	AA = A; BB = B; CC = C; DD = D;

@@ -64,6 +57,7 @@ static void mdfour64(uint32 *M)
        ROUND1(A,B,C,D, 12,  3);  ROUND1(D,A,B,C, 13,  7);  
 	ROUND1(C,D,A,B, 14, 11);  ROUND1(B,C,D,A, 15, 19);	

+
        ROUND2(A,B,C,D,  0,  3);  ROUND2(D,A,B,C,  4,  5);  
 	ROUND2(C,D,A,B,  8,  9);  ROUND2(B,C,D,A, 12, 13);
        ROUND2(A,B,C,D,  1,  3);  ROUND2(D,A,B,C,  5,  5);  
@@ -82,15 +76,11 @@ static void mdfour64(uint32 *M)
        ROUND3(A,B,C,D,  3,  3);  ROUND3(D,A,B,C, 11,  9);  
 	ROUND3(C,D,A,B,  7, 11);  ROUND3(B,C,D,A, 15, 15);

-	A += AA; B += BB; C += CC; D += DD;
+	A += AA; B += BB; 
+	C += CC; D += DD;
 	
-#ifdef LARGE_INT32
-	A &= 0xFFFFFFFF; B &= 0xFFFFFFFF;
-	C &= 0xFFFFFFFF; D &= 0xFFFFFFFF;
-#endif
-
-	for (j=0;j<16;j++)
-		X[j] = 0;
+	A &= MASK32; B &= MASK32; 
+	C &= MASK32; D &= MASK32;

 	m->A = A; m->B = B; m->C = C; m->D = D;
 }
--- a/lib/permstring.c
+++ b/lib/permstring.c
@@ -0,0 +1,61 @@
+/* 
+   Copyright (C) Andrew Tridgell 1996
+   Copyright (C) Paul Mackerras 1996
+   Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "rsync.h"
+
+/**
+ * Produce a string representation of Unix mode bits like that used by
+ * ls(1).
+ *
+ * @param buf buffer of at least 11 characters
+ **/
+void permstring(char *perms,
+		int mode)
+{
+	static const char *perm_map = "rwxrwxrwx";
+	int i;
+
+	strcpy(perms, "----------");
+	
+	for (i=0;i<9;i++) {
+		if (mode & (1<<i)) perms[9-i] = perm_map[8-i];
+	}
+
+	/* Handle setuid/sticky bits.  You might think the indices are
+	 * off by one, but remember there's a type char at the
+	 * start.  */
+	if (mode & S_ISUID)
+		perms[3] = (mode & S_IXUSR) ? 's' : 'S';
+
+	if (mode & S_ISGID)
+		perms[6] = (mode & S_IXGRP) ? 's' : 'S';
+	
+	if (mode & S_ISVTX)
+		perms[9] = (mode & S_IXOTH) ? 't' : 'T';
+		
+	if (S_ISLNK(mode)) perms[0] = 'l';
+	if (S_ISDIR(mode)) perms[0] = 'd';
+	if (S_ISBLK(mode)) perms[0] = 'b';
+	if (S_ISCHR(mode)) perms[0] = 'c';
+	if (S_ISSOCK(mode)) perms[0] = 's';
+	if (S_ISFIFO(mode)) perms[0] = 'p';
+}
+
+	
--- a/lib/permstring.h
+++ b/lib/permstring.h
@@ -0,0 +1,3 @@
+#define PERMSTRING_SIZE 11
+
+void permstring(char *perms, int mode);
--- a/lib/snprintf.c
+++ b/lib/snprintf.c
--- a/loadparm.c
+++ b/loadparm.c
@@ -1,6 +1,11 @@
 /* This is based on loadparm.c from Samba, written by Andrew Tridgell
   and Karl Auer */

+/* some fixes
+ *
+ * Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+ */
+
 /* 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -77,8 +82,6 @@ struct parm_struct
 	unsigned flags;
 };

-static BOOL bLoaded = False;
-
 #ifndef GLOBAL_NAME
 #define GLOBAL_NAME "global"
 #endif
@@ -134,6 +137,7 @@ typedef struct
 	char *dont_compress;
 	int timeout;
 	int max_connections;
+	BOOL ignore_nonreadable;
 } service;


@@ -162,9 +166,10 @@ static service sDefault =
 	NULL,    /* include from */
 	"%o %h [%a] %m (%u) %f %l",    /* log format */
 	NULL,    /* refuse options */
-	"*.gz *.tgz *.zip *.z *.rpm *.deb",    /* dont compress */
+	"*.gz *.tgz *.zip *.z *.rpm *.deb *.iso *.bz2 *.tbz",    /* dont compress */
 	0,        /* timeout */
-	0        /* max connections */
+	0,        /* max connections */
+	False     /* ignore nonreadable */
 };


@@ -262,6 +267,7 @@ static struct parm_struct parm_table[] =
  {"read only",        P_BOOL,    P_LOCAL,  &sDefault.read_only,   NULL,   0},
  {"list",             P_BOOL,    P_LOCAL,  &sDefault.list,        NULL,   0},
  {"use chroot",       P_BOOL,    P_LOCAL,  &sDefault.use_chroot,  NULL,   0},
+  {"ignore nonreadable",P_BOOL,   P_LOCAL,  &sDefault.ignore_nonreadable,  NULL,   0},
  {"uid",              P_STRING,  P_LOCAL,  &sDefault.uid,         NULL,   0},
  {"gid",              P_STRING,  P_LOCAL,  &sDefault.gid,         NULL,   0},
  {"hosts allow",      P_STRING,  P_LOCAL,  &sDefault.hosts_allow, NULL,   0},
@@ -340,6 +346,7 @@ FN_LOCAL_BOOL(lp_list, list)
 FN_LOCAL_BOOL(lp_use_chroot, use_chroot)
 FN_LOCAL_BOOL(lp_transfer_logging, transfer_logging)
 FN_LOCAL_BOOL(lp_ignore_errors, ignore_errors)
+FN_LOCAL_BOOL(lp_ignore_nonreadable, ignore_nonreadable)
 FN_LOCAL_STRING(lp_uid, uid)
 FN_LOCAL_STRING(lp_gid, gid)
 FN_LOCAL_STRING(lp_hosts_allow, hosts_allow)
@@ -377,14 +384,28 @@ static void init_service(service *pservice)
 	copy_service(pservice,&sDefault);
 }

-static void string_set(char **s, char *v)
+
+/**
+ * Assign a copy of @p v to @p *s.  Handles NULL strings.  @p *v must
+ * be initialized when this is called, either to NULL or a malloc'd
+ * string.
+ *
+ * @fixme There is a small leak here in that sometimes the existing
+ * value will be dynamically allocated, and the old copy is lost.
+ * However, we can't always deallocate the old value, because in the
+ * case of sDefault, it points to a static string.  It would be nice
+ * to have either all-strdup'd values, or to never need to free
+ * memory.
+ **/
+static void string_set(char **s, const char *v)
 {
 	if (!v) {
 		*s = NULL;
 		return;
 	}
 	*s = strdup(v);
-	if (!*s) exit_cleanup(RERR_MALLOC);
+	if (!*s)
+		exit_cleanup(RERR_MALLOC);
 }


@@ -730,8 +751,6 @@ BOOL lp_load(char *pszFname, int globals_only)
 	iServiceIndex = -1;
 	bRetval = pm_process(n2, globals_only?NULL:do_section, do_parameter);
  
-	bLoaded = True;
-
 	return (bRetval);
 }

--- a/log.c
+++ b/log.c
@@ -24,7 +24,7 @@
 #include "rsync.h"

 static FILE *logfile;
-static int log_error_fd = -1;
+

 static void logit(int priority, char *buf)
 {
@@ -77,66 +77,60 @@ void log_open(void)
 	logit(LOG_INFO,"rsyncd started\n");
 #endif
 }
+		

-/* setup the error file descriptor - used when we are a server
-   that is receiving files */
-void set_error_fd(int fd)
-{
-	log_error_fd = fd;
-}
-
-/* this is the underlying (unformatted) rsync debugging function. Call
-   it with FINFO, FERROR or FLOG */
-void rwrite(enum logcode code, char *buf, int len)
+/* this is the rsync debugging function. Call it with FINFO, FERROR or FLOG */
+ void rprintf(int fd, const char *format, ...)
 {
+	va_list ap;  
+	char buf[1024];
+	int len;
 	FILE *f=NULL;
 	extern int am_daemon;
-	extern int am_server;
 	extern int quiet;
 	/* recursion can happen with certain fatal conditions */

-	if (quiet && code == FINFO) return;
+	if (quiet != 0 && fd == FINFO) return;
+
+	va_start(ap, format);
+	len = vslprintf(buf, sizeof(buf), format, ap);
+	va_end(ap);

 	if (len < 0) exit_cleanup(RERR_MESSAGEIO);

+	if (len > sizeof(buf)-1) exit_cleanup(RERR_MESSAGEIO);
+
 	buf[len] = 0;

-	if (code == FLOG) {
+	if (fd == FLOG) {
 		if (am_daemon) logit(LOG_INFO, buf);
 		return;
 	}

-	/* first try to pass it off the our sibling */
-	if (am_server && io_error_write(log_error_fd, code, buf, len)) {
-		return;
-	}
-
-	/* then try to pass it to the other end */
-	if (am_server && io_multiplex_write(code, buf, len)) {
-		return;
-	}
-
 	if (am_daemon) {
 		static int depth;
 		int priority = LOG_INFO;
-		if (code == FERROR) priority = LOG_WARNING;
+		if (fd == FERROR) priority = LOG_WARNING;

 		if (depth) return;

 		depth++;

 		log_open();
-		logit(priority, buf);
+		if (!io_multiplex_write(fd, buf, strlen(buf))) {
+			logit(priority, buf);
+		}

 		depth--;
 		return;
 	}

-	if (code == FERROR) {
+	if (fd == FERROR) {
 		f = stderr;
 	} 

-	if (code == FINFO) {
+	if (fd == FINFO) {
+		extern int am_server;
 		if (am_server) 
 			f = stderr;
 		else
@@ -149,25 +143,8 @@ void rwrite(enum logcode code, char *buf, int len)

 	if (buf[len-1] == '\r' || buf[len-1] == '\n') fflush(f);
 }
-		

-/* this is the rsync debugging function. Call it with FINFO, FERROR or FLOG */
- void rprintf(enum logcode code, const char *format, ...)
-{
-	va_list ap;  
-	char buf[1024];
-	int len;
-
-	va_start(ap, format);
-	len = vslprintf(buf, sizeof(buf), format, ap);
-	va_end(ap);
-
-	if (len > sizeof(buf)-1) exit_cleanup(RERR_MESSAGEIO);
-
-	rwrite(code, buf, len);
-}
-
-void rflush(enum logcode code)
+void rflush(int fd)
 {
 	FILE *f = NULL;
 	extern int am_daemon;
@@ -176,15 +153,15 @@ void rflush(enum logcode code)
 		return;
 	}

-	if (code == FLOG) {
+	if (fd == FLOG) {
 		return;
 	} 

-	if (code == FERROR) {
+	if (fd == FERROR) {
 		f = stderr;
 	} 

-	if (code == FINFO) {
+	if (fd == FINFO) {
 		extern int am_server;
 		if (am_server) 
 			f = stderr;
@@ -200,7 +177,7 @@ void rflush(enum logcode code)

 /* a generic logging routine for send/recv, with parameter
   substitiution */
-static void log_formatted(enum logcode code,
+static void log_formatted(int fd,
 			  char *format, char *op, struct file_struct *file,
 			  struct stats *initial_stats)
 {
@@ -215,6 +192,8 @@ static void log_formatted(enum logcode code,
 	extern int am_daemon;
 	int64 b;

+	memset(buf,0,sizeof(buf));
+
 	strlcpy(buf, format, sizeof(buf));
 	
 	for (s=&buf[0]; 
@@ -276,7 +255,7 @@ static void log_formatted(enum logcode code,

 		l = strlen(n);

-		if ((l-1) + ((int)(s - &buf[0])) > sizeof(buf)) {
+		if (l + ((int)(s - &buf[0])) > sizeof(buf)) {
 			rprintf(FERROR,"buffer overflow expanding %%%c - exiting\n",
 				p[0]);
 			exit_cleanup(RERR_MESSAGEIO);
@@ -290,7 +269,7 @@ static void log_formatted(enum logcode code,
 		s = p+l;
 	}

-	rprintf(code,"%s\n", buf);
+	rprintf(fd,"%s\n", buf);
 }

 /* log the outgoing transfer of a file */
--- a/main.c
+++ b/main.c
@@ -1,6 +1,8 @@
-/* 
-   Copyright (C) Andrew Tridgell 1996
+/* -*- c-file-style: "linux" -*-
+   
+   Copyright (C) 1996-2001 by Andrew Tridgell <tridge@samba.org>
   Copyright (C) Paul Mackerras 1996
+   Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -25,6 +27,26 @@ struct stats stats;

 extern int verbose;

+static void show_malloc_stats(void);
+
+/****************************************************************************
+wait for a process to exit, calling io_flush while waiting
+****************************************************************************/
+void wait_process(pid_t pid, int *status)
+{
+	while (waitpid(pid, status, WNOHANG) == 0) {
+		msleep(20);
+		io_flush();
+	}
+        
+        /* TODO: If the child exited on a signal, then log an
+         * appropriate error message.  Perhaps we should also accept a
+         * message describing the purpose of the child.  Also indicate
+         * this to the caller so that thhey know something went
+         * wrong.  */
+	*status = WEXITSTATUS(*status);
+}
+
 static void report(int f)
 {
 	time_t t = time(NULL);
@@ -35,6 +57,11 @@ static void report(int f)
 	extern int remote_version;
 	int send_stats;

+	if (do_stats) {
+		/* These come out from every process */
+		show_malloc_stats();
+	}
+
 	if (am_daemon) {
 		log_exit(0, __FILE__, __LINE__);
 		if (f == -1 || !am_sender) return;
@@ -105,15 +132,51 @@ static void report(int f)
 }


-static int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
+/**
+ * If our C library can get malloc statistics, then show them to FINFO
+ **/
+static void show_malloc_stats(void)
+{
+#ifdef HAVE_MALLINFO
+	struct mallinfo mi;
+	extern int am_server;
+	extern int am_sender;
+	extern int am_daemon;
+
+	mi = mallinfo();
+
+	rprintf(FINFO, RSYNC_NAME "[%d] (%s%s%s) heap statistics:\n",
+		getpid(),
+		am_server ? "server " : "",
+		am_daemon ? "daemon " : "",
+		am_sender ? "sender" : "receiver");
+	rprintf(FINFO, "  arena:     %10d   (bytes from sbrk)\n", mi.arena);
+	rprintf(FINFO, "  ordblks:   %10d   (chunks not in use)\n", mi.ordblks);
+	rprintf(FINFO, "  smblks:    %10d\n", mi.smblks);
+	rprintf(FINFO, "  hblks:     %10d   (chunks from mmap)\n", mi.hblks);
+	rprintf(FINFO, "  hblkhd:    %10d   (bytes from mmap)\n", mi.hblkhd);
+	rprintf(FINFO, "  usmblks:   %10d\n", mi.usmblks);
+	rprintf(FINFO, "  fsmblks:   %10d\n", mi.fsmblks);
+	rprintf(FINFO, "  uordblks:  %10d   (bytes used)\n", mi.uordblks);
+	rprintf(FINFO, "  fordblks:  %10d   (bytes free)\n", mi.fordblks);
+	rprintf(FINFO, "  keepcost:  %10d   (bytes in releasable chunk)\n", mi.keepcost);
+#endif /* HAVE_MALLINFO */
+}
+
+
+/* Start the remote shell.   cmd may be NULL to use the default. */
+static pid_t do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f_out)
 {
 	char *args[100];
-	int i,argc=0, ret;
+	int i,argc=0;
+	pid_t ret;
 	char *tok,*dir=NULL;
 	extern int local_server;
 	extern char *rsync_path;
+	extern int blocking_io;
+	extern int read_batch;

-	if (!local_server) {
+	if (!read_batch && !local_server) { /* dw -- added read_batch */
 		if (!cmd)
 			cmd = getenv(RSYNC_RSH_ENV);
 		if (!cmd)
@@ -144,6 +207,9 @@ static int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f
 		args[argc++] = rsync_path;

 		server_options(args,&argc);
+
+
+		if (strcmp(cmd, RSYNC_RSH) == 0) blocking_io = 1;
 	}

 	args[argc++] = ".";
@@ -161,6 +227,8 @@ static int do_cmd(char *cmd,char *machine,char *user,char *path,int *f_in,int *f
 	}

 	if (local_server) {
+		if (read_batch)
+		    create_flist_from_batch();
 		ret = local_child(argc, args, f_in, f_out);
 	} else {
 		ret = piped_child(args,f_in,f_out);
@@ -236,6 +304,7 @@ static void do_server_sender(int f_in, int f_out, int argc,char *argv[])
 	char *dir = argv[0];
 	extern int relative_paths;
 	extern int recurse;
+	extern int remote_version;

 	if (verbose > 2)
 		rprintf(FINFO,"server_sender starting pid=%d\n",(int)getpid());
@@ -267,7 +336,12 @@ static void do_server_sender(int f_in, int f_out, int argc,char *argv[])
 	}

 	send_files(flist,f_out,f_in);
+	io_flush();
 	report(f_out);
+	if (remote_version >= 24) {
+		/* final goodbye message */		
+ 		read_int(f_in);
+ 	}
 	io_flush();
 	exit_cleanup(0);
 }
@@ -319,19 +393,21 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 		set_error_fd(error_pipe[1]);

 		recv_files(f_in,flist,local_name,recv_pipe[1]);
+		io_flush();
 		report(f_in);

 		write_int(recv_pipe[1],1);
 		close(recv_pipe[1]);
 		io_flush();
-		/* finally we go to sleep until our parent kills us with
-		   a USR2 signal */
-		while (1) sleep(60);
+		/* finally we go to sleep until our parent kills us
+		   with a USR2 signal. We sleep for a short time as on
+		   some OSes a signal won't interrupt a sleep! */
+		while (msleep(20))
+			;
 	}

 	close(recv_pipe[1]);
 	close(error_pipe[1]);
-	io_close_input(f_in);
 	if (f_in != f_out) close(f_in);

 	io_start_buffering(f_out);
@@ -365,6 +441,8 @@ static void do_server_recv(int f_in, int f_out, int argc,char *argv[])
 	extern int am_daemon;
 	extern int module_id;
 	extern int am_sender;
+	extern int read_batch;   /* dw */
+	extern struct file_list *batch_flist;  /* dw */

 	if (verbose > 2)
 		rprintf(FINFO,"server_recv(%d) starting pid=%d\n",argc,(int)getpid());
@@ -390,7 +468,10 @@ static void do_server_recv(int f_in, int f_out, int argc,char *argv[])
 	if (delete_mode && !delete_excluded)
 		recv_exclude_list(f_in);

-	flist = recv_file_list(f_in);
+	if (read_batch) /*  dw  */
+	    flist = batch_flist;
+	else
+	    flist = recv_file_list(f_in);
 	if (!flist) {
 		rprintf(FERROR,"server_recv: recv_file_list error\n");
 		exit_cleanup(RERR_FILESELECT);
@@ -414,16 +495,22 @@ void start_server(int f_in, int f_out, int argc, char *argv[])
 	extern int cvs_exclude;
 	extern int am_sender;
 	extern int remote_version;
+	extern int read_batch; /* dw */

 	setup_protocol(f_out, f_in);

+	set_nonblocking(f_in);
+	set_nonblocking(f_out);
+
 	if (remote_version >= 23)
 		io_start_multiplex_out(f_out);

 	if (am_sender) {
-		recv_exclude_list(f_in);
-		if (cvs_exclude)
+		if (!read_batch) { /* dw */
+		    recv_exclude_list(f_in);
+		    if (cvs_exclude)
 			add_cvs_excludes();
+		}
 		do_server_sender(f_in, f_out, argc, argv);
 	} else {
 		do_server_recv(f_in, f_out, argc, argv);
@@ -431,14 +518,29 @@ void start_server(int f_in, int f_out, int argc, char *argv[])
 	exit_cleanup(0);
 }

-int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
+
+/*
+ * This is called once the connection has been negotiated.  It is used
+ * for rsyncd, remote-shell, and local connections.
+ */
+int client_run(int f_in, int f_out, pid_t pid, int argc, char *argv[])
 {
 	struct file_list *flist;
 	int status = 0, status2 = 0;
 	char *local_name = NULL;
 	extern int am_sender;
-	extern int list_only;
 	extern int remote_version;
+	extern pid_t cleanup_child_pid;
+	extern int write_batch; /* dw */
+	extern int read_batch; /* dw */
+	extern struct file_list *batch_flist; /*  dw */
+
+	cleanup_child_pid = pid;
+	if (read_batch)
+	    flist = batch_flist;  /* dw */
+
+	set_nonblocking(f_in);
+	set_nonblocking(f_out);

 	setup_protocol(f_out,f_in);

@@ -453,32 +555,39 @@ int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
 			add_cvs_excludes();
 		if (delete_mode && !delete_excluded) 
 			send_exclude_list(f_out);
-		flist = send_file_list(f_out,argc,argv);
+		if (!read_batch) /*  dw -- don't write to pipe */
+		    flist = send_file_list(f_out,argc,argv);
 		if (verbose > 3) 
 			rprintf(FINFO,"file list sent\n");

 		send_files(flist,f_out,f_in);
-		if (pid != -1) {
-			if (verbose > 3)
-				rprintf(FINFO,"client_run waiting on %d\n",pid);
-			io_flush();
-			wait_process(pid, &status);
-		}
-		report(-1);
 		if (remote_version >= 24) {
 			/* final goodbye message */		
 			read_int(f_in);
 		}
+		if (pid != -1) {
+			if (verbose > 3)
+				rprintf(FINFO,"client_run waiting on %d\n", (int) pid);
+			io_flush();
+			wait_process(pid, &status);
+		}
+		report(-1);
 		exit_cleanup(status);
 	}

-	if (argc == 0) list_only = 1;
+	if (argc == 0) {
+		extern int list_only;
+		list_only = 1;
+	}
 	
-	send_exclude_list(f_out);
+	if (!write_batch) /* dw */
+	    send_exclude_list(f_out);
 	
 	flist = recv_file_list(f_in);
 	if (!flist || flist->count == 0) {
-		rprintf(FINFO,"client: nothing to do\n");
+		rprintf(FINFO, "client: nothing to do: "
+                        "perhaps you need to specify some filenames or "
+                        "the --recursive option?\n");
 		exit_cleanup(0);
 	}
 	
@@ -488,12 +597,12 @@ int client_run(int f_in, int f_out, int pid, int argc, char *argv[])
 	
 	if (pid != -1) {
 		if (verbose > 3)
-			rprintf(FINFO,"client_run2 waiting on %d\n",pid);
+			rprintf(FINFO,"client_run2 waiting on %d\n", (int) pid);
 		io_flush();
 		wait_process(pid, &status);
 	}
 	
-	return status | status2;
+	return MAX(status, status2);
 }

 static char *find_colon(char *s)
@@ -511,18 +620,49 @@ static char *find_colon(char *s)
 	return p;
 }

+
+static int copy_argv (char *argv[])
+{
+	int i;
+
+	for (i = 0; argv[i]; i++) {
+		if (!(argv[i] = strdup(argv[i]))) {
+			rprintf (FERROR, "out of memory at %s(%d)\n",
+				 __FILE__, __LINE__);
+			return RERR_MALLOC;
+		}
+	}
+
+	return 0;
+}
+
+
+/*
+ * Start a client for either type of remote connection.  Work out
+ * whether the arguments request a remote shell or rsyncd connection,
+ * and call the appropriate connection function, then run_client.
+ */
 static int start_client(int argc, char *argv[])
 {
 	char *p;
 	char *shell_machine = NULL;
 	char *shell_path = NULL;
 	char *shell_user = NULL;
-	int pid, ret;
+	int ret;
+	pid_t pid;
 	int f_in,f_out;
 	extern int local_server;
 	extern int am_sender;
 	extern char *shell_cmd;
 	extern int rsync_port;
+	extern int whole_file;
+	extern int read_batch;
+	int rc;
+
+	/* Don't clobber argv[] so that ps(1) can still show the right
+           command line. */
+	if ((rc = copy_argv (argv)))
+		return rc;

 	if (strncasecmp(URL_PREFIX, argv[0], strlen(URL_PREFIX)) == 0) {
 		char *host, *path;
@@ -543,7 +683,8 @@ static int start_client(int argc, char *argv[])
 		return start_socket_client(host, path, argc-1, argv+1);
 	}

-	p = find_colon(argv[0]);
+	if (!read_batch) { /* dw */
+	    p = find_colon(argv[0]);

 	if (p) {
 		if (p[1] == ':') {
@@ -568,6 +709,8 @@ static int start_client(int argc, char *argv[])
 		p = find_colon(argv[argc-1]);
 		if (!p) {
 			local_server = 1;
+			/* disable "rsync algorithm" when both sides local */
+			whole_file = 1;
 		} else if (p[1] == ':') {
 			*p = 0;
 			return start_socket_client(argv[argc-1], p+2, argc-1, argv);
@@ -588,7 +731,12 @@ static int start_client(int argc, char *argv[])
 		}
 		argc--;
 	}
-	
+	} else {
+	    am_sender = 1;  /*  dw */
+	    local_server = 1;  /* dw */
+	    shell_path = argv[argc-1];  /* dw */
+	}
+
 	if (shell_machine) {
 		p = strchr(shell_machine,'@');
 		if (p) {
@@ -610,6 +758,11 @@ static int start_client(int argc, char *argv[])
 		usage(FERROR);
 		exit_cleanup(RERR_SYNTAX);
 	}
+
+	if (argc == 0 && !am_sender) {
+		extern int list_only;
+		list_only = 1;
+	}
 	
 	pid = do_cmd(shell_cmd,shell_machine,shell_user,shell_path,&f_in,&f_out);
 	
@@ -627,9 +780,17 @@ static RETSIGTYPE sigusr1_handler(int val) {
 }

 static RETSIGTYPE sigusr2_handler(int val) {
+	extern int log_got_error;
+	if (log_got_error) _exit(RERR_PARTIAL);
 	_exit(0);
 }

+static RETSIGTYPE sigchld_handler(int val) {
+#ifdef WNOHANG
+	while (waitpid(-1, NULL, WNOHANG) > 0) ;
+#endif
+}
+
 int main(int argc,char *argv[])
 {       
 	extern int am_root;
@@ -637,9 +798,19 @@ int main(int argc,char *argv[])
 	extern int dry_run;
 	extern int am_daemon;
 	extern int am_server;
+	int ret;
+	extern int read_batch;   /*  dw */
+	extern int write_batch;  /*  dw */
+	extern char *batch_ext;   /*  dw */
+	int orig_argc;  /* dw */
+	char **orig_argv;
+
+	orig_argc = argc;   /* dw */
+	orig_argv = argv;

 	signal(SIGUSR1, sigusr1_handler);
 	signal(SIGUSR2, sigusr2_handler);
+	signal(SIGCHLD, sigchld_handler);

 	starttime = time(NULL);
 	am_root = (getuid() == 0);
@@ -655,15 +826,13 @@ int main(int argc,char *argv[])
 	   carried across */
 	orig_umask = (int)umask(0);

-	if (!parse_arguments(argc, argv, 1)) {
+	if (!parse_arguments(&argc, (const char ***) &argv, 1)) {
+                /* FIXME: We ought to call the same error-handling
+                 * code here, rather than relying on getopt. */
+		option_error();
 		exit_cleanup(RERR_SYNTAX);
 	}

-	argc -= optind;
-	argv += optind;
-	optind = 0;
-
-	signal(SIGCHLD,SIG_IGN);
 	signal(SIGINT,SIGNAL_CAST sig_int);
 	signal(SIGPIPE,SIGNAL_CAST sig_int);
 	signal(SIGHUP,SIGNAL_CAST sig_int);
@@ -675,6 +844,15 @@ int main(int argc,char *argv[])
 	   that implement getcwd that way "pwd" can't be found after chroot. */
 	push_dir(NULL,0);

+	if (write_batch) { /* dw */
+	    create_batch_file_ext();
+	    write_batch_argvs_file(orig_argc, orig_argv);
+	}
+
+	if (read_batch) { /* dw */
+	    set_batch_file_ext(batch_ext);
+	}
+
 	if (am_daemon) {
 		return daemon_main();
 	}
@@ -695,9 +873,13 @@ int main(int argc,char *argv[])
 #endif

 	if (am_server) {
+		set_nonblocking(STDIN_FILENO);
+		set_nonblocking(STDOUT_FILENO);
 		start_server(STDIN_FILENO, STDOUT_FILENO, argc, argv);
 	}

-	return start_client(argc, argv);
+	ret = start_client(argc, argv);
+	exit_cleanup(ret);
+	return ret;
 }

--- a/match.c
+++ b/match.c
@@ -260,6 +260,7 @@ static void hash_search(int f,struct sum_struct *s,
 void match_sums(int f,struct sum_struct *s,struct map_struct *buf,OFF_T len)
 {
 	char file_sum[MD4_SUM_LENGTH];
+	extern int write_batch;  /*  dw */

 	last_match = 0;
 	false_alarms = 0;
@@ -295,6 +296,8 @@ void match_sums(int f,struct sum_struct *s,struct map_struct *buf,OFF_T len)
 		if (verbose > 2)
 			rprintf(FINFO,"sending file_sum\n");
 		write_buf(f,file_sum,MD4_SUM_LENGTH);
+		if (write_batch) /* dw */
+		    write_batch_delta_file(file_sum, MD4_SUM_LENGTH);
 	}

 	if (targets) {
--- a/options.c
+++ b/options.c
@@ -1,5 +1,7 @@
-/* 
-   Copyright (C) Andrew Tridgell 1998
+/*  -*- c-file-style: "linux" -*-
+    
+    Copyright (C) 1998-2001 by Andrew Tridgell <tridge@samba.org>
+    Copyright (C) 2000, 2001, 2002 by Martin Pool <mbp@samba.org>
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -16,10 +18,8 @@
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

-/* options parsing code */
-
 #include "rsync.h"
-
+#include "popt.h"

 int make_backups = 0;
 int whole_file = 0;
@@ -52,7 +52,7 @@ int io_error = 0;
 int read_only = 0;
 int module_id = -1;
 int am_server = 0;
-int am_sender=0;
+int am_sender = 0;
 int recurse = 0;
 int am_daemon=0;
 int do_stats=0;
@@ -62,9 +62,33 @@ int safe_symlinks=0;
 int copy_unsafe_links=0;
 int block_size=BLOCK_SIZE;
 int size_only=0;
+int bwlimit=0;
 int delete_after=0;
 int only_existing=0;
 int max_delete=0;
+int ignore_errors=0;
+#ifdef _WIN32
+int modify_window=2;
+#else
+int modify_window=0;
+#endif
+int blocking_io=0;
+
+/** Network address family. **/
+#ifdef INET6
+int default_af_hint = 0;	/* Any protocol */
+#else
+int default_af_hint = AF_INET;	/* Must use IPv4 */
+#endif
+
+/** Do not go into the background when run as --daemon.  Good
+ * for debugging and required for running as a service on W32,
+ * or under Unix process-monitors. **/
+int no_detach = 0;
+
+
+int read_batch=0;
+int write_batch=0;

 char *backup_suffix = BACKUP_SUFFIX;
 char *tmpdir = NULL;
@@ -73,7 +97,7 @@ char *config_file = RSYNCD_CONF;
 char *shell_cmd = NULL;
 char *log_format = NULL;
 char *password_file = NULL;
-char *rsync_path = RSYNC_NAME;
+char *rsync_path = RSYNC_PATH;
 char *backup_dir = NULL;
 int rsync_port = RSYNC_PORT;

@@ -82,12 +106,66 @@ int quiet = 0;
 int always_checksum = 0;
 int list_only = 0;

-struct in_addr socket_address = {INADDR_ANY};
+char *batch_ext = NULL;
+
+static int modify_window_set;
+
+/** Local address to bind.  As a character string because it's
+ * interpreted by the IPv6 layer: should be a numeric IP4 or ip6
+ * address, or a hostname. **/
+char *bind_address;
+
+
+static void print_rsync_version(enum logcode f)
+{
+        char const *got_socketpair = "no ";
+        char const *hardlinks = "no ";
+        char const *links = "no ";
+	char const *ipv6 = "no ";
+	STRUCT_STAT *dumstat;
+
+#ifdef HAVE_SOCKETPAIR
+        got_socketpair = "";
+#endif
+
+#if SUPPORT_HARD_LINKS
+        hardlinks = "";
+#endif
+
+#if SUPPORT_LINKS
+        links = "";
+#endif
+
+#if INET6
+	ipv6 = "";
+#endif       
+
+        rprintf(f, "%s  version %s  protocol version %d\n",
+                RSYNC_NAME, RSYNC_VERSION, PROTOCOL_VERSION);
+        rprintf(f,
+                "Copyright (C) 1996-2002 by Andrew Tridgell and others\n");
+	rprintf(f, "<http://rsync.samba.org/>\n");
+        rprintf(f, "Capabilities: %d-bit files, %ssocketpairs, "
+                "%shard links, %ssymlinks, batchfiles, %sIPv6,\n",
+                (int) (sizeof(OFF_T) * 8),
+                got_socketpair, hardlinks, links, ipv6);
+
+	/* Note that this field may not have type ino_t.  It depends
+	 * on the complicated interaction between largefile feature
+	 * macros. */
+	rprintf(f, "              %d-bit system inums, %d-bit internal inums\n",
+		(int) (sizeof(dumstat->st_ino) * 8),
+		(int) (sizeof(INO64_T) * 8));
+
+#ifdef NO_INT64
+        rprintf(f, "WARNING: no 64-bit integers on this platform!\n");
+#endif
+}
+

 void usage(enum logcode F)
 {
-  rprintf(F,"rsync version %s Copyright Andrew Tridgell and Paul Mackerras\n\n",
-	  VERSION);
+  print_rsync_version(F);

  rprintf(F,"rsync is a file transfer program capable of efficient remote update\nvia a fast differencing algorithm.\n\n");

@@ -111,8 +189,8 @@ void usage(enum logcode F)
  rprintf(F,"     --backup-dir            make backups into this directory\n");
  rprintf(F,"     --suffix=SUFFIX         override backup suffix\n");  
  rprintf(F," -u, --update                update only (don't overwrite newer files)\n");
-  rprintf(F," -l, --links                 preserve soft links\n");
-  rprintf(F," -L, --copy-links            treat soft links like regular files\n");
+  rprintf(F," -l, --links                 copy symlinks as symlinks\n");
+  rprintf(F," -L, --copy-links            copy the referent of symlinks\n");
  rprintf(F,"     --copy-unsafe-links     copy links outside the source tree\n");
  rprintf(F,"     --safe-links            ignore links outside the destination tree\n");
  rprintf(F," -H, --hard-links            preserve hard links\n");
@@ -133,6 +211,7 @@ void usage(enum logcode F)
  rprintf(F,"     --delete                delete files that don't exist on the sending side\n");
  rprintf(F,"     --delete-excluded       also delete excluded files on the receiving side\n");
  rprintf(F,"     --delete-after          delete after transferring, not before\n");
+  rprintf(F,"     --ignore-errors         delete even if there are IO errors\n");
  rprintf(F,"     --max-delete=NUM        don't delete more than NUM files\n");
  rprintf(F,"     --partial               keep partially transferred files\n");
  rprintf(F,"     --force                 force deletion of directories even if not empty\n");
@@ -140,6 +219,7 @@ void usage(enum logcode F)
  rprintf(F,"     --timeout=TIME          set IO timeout in seconds\n");
  rprintf(F," -I, --ignore-times          don't exclude files that match length and time\n");
  rprintf(F,"     --size-only             only use file size when determining if a file should be transferred\n");
+  rprintf(F,"     --modify-window=NUM     Timestamp window (seconds) for file match (default=%d)\n",modify_window);
  rprintf(F," -T  --temp-dir=DIR          create temporary files in directory DIR\n");
  rprintf(F,"     --compare-dest=DIR      also compare destination files relative to DIR\n");
  rprintf(F," -P                          equivalent to --partial --progress\n");
@@ -150,105 +230,134 @@ void usage(enum logcode F)
  rprintf(F,"     --include-from=FILE     don't exclude patterns listed in FILE\n");
  rprintf(F,"     --version               print version number\n");  
  rprintf(F,"     --daemon                run as a rsync daemon\n");  
-  rprintf(F,"     --address               bind to the specified address\n");  
+  rprintf(F,"     --no-detach             do not detach from the parent\n");  
+  rprintf(F,"     --address=ADDRESS       bind to the specified address\n");  
  rprintf(F,"     --config=FILE           specify alternate rsyncd.conf file\n");  
  rprintf(F,"     --port=PORT             specify alternate rsyncd port number\n");
+  rprintf(F,"     --blocking-io           use blocking IO for the remote shell\n");  
  rprintf(F,"     --stats                 give some file transfer stats\n");  
  rprintf(F,"     --progress              show progress during transfer\n");  
  rprintf(F,"     --log-format=FORMAT     log file transfers using specified format\n");  
  rprintf(F,"     --password-file=FILE    get password from FILE\n");
+  rprintf(F,"     --bwlimit=KBPS          limit I/O bandwidth, KBytes per second\n");
+  rprintf(F,"     --read-batch=EXT        read batch file\n");
+  rprintf(F,"     --write-batch           write batch file\n");
  rprintf(F," -h, --help                  show this help screen\n");
+#ifdef INET6
+  rprintf(F," -4                          prefer IPv4\n");
+  rprintf(F," -6                          prefer IPv6\n");
+#endif

  rprintf(F,"\n");

  rprintf(F,"\nPlease see the rsync(1) and rsyncd.conf(5) man pages for full documentation\n");
-  rprintf(F,"See http://rsync.samba.org/ for updates and bug reports\n");
+  rprintf(F,"See http://rsync.samba.org/ for updates, bug reports, and answers\n");
 }

-enum {OPT_VERSION, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
+enum {OPT_VERSION = 1000, OPT_SUFFIX, OPT_SENDER, OPT_SERVER, OPT_EXCLUDE,
      OPT_EXCLUDE_FROM, OPT_DELETE, OPT_DELETE_EXCLUDED, OPT_NUMERIC_IDS,
      OPT_RSYNC_PATH, OPT_FORCE, OPT_TIMEOUT, OPT_DAEMON, OPT_CONFIG, OPT_PORT,
      OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_STATS, OPT_PARTIAL, OPT_PROGRESS,
      OPT_COPY_UNSAFE_LINKS, OPT_SAFE_LINKS, OPT_COMPARE_DEST,
      OPT_LOG_FORMAT, OPT_PASSWORD_FILE, OPT_SIZE_ONLY, OPT_ADDRESS,
-      OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR};
+      OPT_DELETE_AFTER, OPT_EXISTING, OPT_MAX_DELETE, OPT_BACKUP_DIR, 
+      OPT_IGNORE_ERRORS, OPT_BWLIMIT, OPT_BLOCKING_IO,
+      OPT_MODIFY_WINDOW, OPT_READ_BATCH, OPT_WRITE_BATCH};

-static char *short_options = "oblLWHpguDCtcahvqrRIxnSe:B:T:zP";
-
-static struct option long_options[] = {
-  {"version",     0,     0,    OPT_VERSION},
-  {"server",      0,     0,    OPT_SERVER},
-  {"sender",      0,     0,    OPT_SENDER},
-  {"existing",    0,     0,    OPT_EXISTING},
-  {"delete",      0,     0,    OPT_DELETE},
-  {"delete-excluded", 0, 0,    OPT_DELETE_EXCLUDED},
-  {"force",       0,     0,    OPT_FORCE},
-  {"numeric-ids", 0,     0,    OPT_NUMERIC_IDS},
-  {"exclude",     1,     0,    OPT_EXCLUDE},
-  {"exclude-from",1,     0,    OPT_EXCLUDE_FROM},
-  {"include",     1,     0,    OPT_INCLUDE},
-  {"include-from",1,     0,    OPT_INCLUDE_FROM},
-  {"rsync-path",  1,     0,    OPT_RSYNC_PATH},
-  {"password-file", 1,	0,     OPT_PASSWORD_FILE},
-  {"one-file-system",0,  0,    'x'},
-  {"ignore-times",0,     0,    'I'},
-  {"size-only",   0,     0,    OPT_SIZE_ONLY},
-  {"help",        0,     0,    'h'},
-  {"dry-run",     0,     0,    'n'},
-  {"sparse",      0,     0,    'S'},
-  {"cvs-exclude", 0,     0,    'C'},
-  {"archive",     0,     0,    'a'},
-  {"checksum",    0,     0,    'c'},
-  {"backup",      0,     0,    'b'},
-  {"update",      0,     0,    'u'},
-  {"verbose",     0,     0,    'v'},
-  {"quiet",       0,     0,    'q'},
-  {"recursive",   0,     0,    'r'},
-  {"relative",    0,     0,    'R'},
-  {"devices",     0,     0,    'D'},
-  {"perms",       0,     0,    'p'},
-  {"links",       0,     0,    'l'},
-  {"copy-links",  0,     0,    'L'},
-  {"copy-unsafe-links", 0, 0,  OPT_COPY_UNSAFE_LINKS},
-  {"safe-links",  0,     0,    OPT_SAFE_LINKS},
-  {"whole-file",  0,     0,    'W'},
-  {"hard-links",  0,     0,    'H'},
-  {"owner",       0,     0,    'o'},
-  {"group",       0,     0,    'g'},
-  {"times",       0,     0,    't'},
-  {"rsh",         1,     0,    'e'},
-  {"suffix",      1,     0,    OPT_SUFFIX},
-  {"block-size",  1,     0,    'B'},
-  {"timeout",     1,     0,    OPT_TIMEOUT},
-  {"temp-dir",    1,     0,    'T'},
-  {"compare-dest", 1,    0,    OPT_COMPARE_DEST},
-  {"compress",	  0,	 0,    'z'},
-  {"daemon",      0,     0,    OPT_DAEMON},
-  {"stats",       0,     0,    OPT_STATS},
-  {"progress",    0,     0,    OPT_PROGRESS},
-  {"partial",     0,     0,    OPT_PARTIAL},
-  {"delete-after",0,     0,    OPT_DELETE_AFTER},
-  {"config",      1,     0,    OPT_CONFIG},
-  {"port",        1,     0,    OPT_PORT},
-  {"log-format",  1,     0,    OPT_LOG_FORMAT},
-  {"address",     1,     0,    OPT_ADDRESS},
-  {"max-delete",  1,     0,    OPT_MAX_DELETE},
-  {"backup-dir",  1,     0,    OPT_BACKUP_DIR},
-  {0,0,0,0}};
+static struct poptOption long_options[] = {
+  /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
+  {"version",          0,  POPT_ARG_NONE,   0,             OPT_VERSION},
+  {"suffix",           0,  POPT_ARG_STRING, &backup_suffix},
+  {"rsync-path",       0,  POPT_ARG_STRING, &rsync_path},
+  {"password-file",    0,  POPT_ARG_STRING, &password_file},
+  {"ignore-times",    'I', POPT_ARG_NONE,   &ignore_times},
+  {"size-only",        0,  POPT_ARG_NONE,   &size_only},
+  {"modify-window",    0,  POPT_ARG_INT,    &modify_window, OPT_MODIFY_WINDOW},
+  {"one-file-system", 'x', POPT_ARG_NONE,   &one_file_system},
+  {"delete",           0,  POPT_ARG_NONE,   &delete_mode},
+  {"existing",         0,  POPT_ARG_NONE,   &only_existing},
+  {"delete-after",     0,  POPT_ARG_NONE,   &delete_after},
+  {"delete-excluded",  0,  POPT_ARG_NONE,   0,              OPT_DELETE_EXCLUDED},
+  {"force",            0,  POPT_ARG_NONE,   &force_delete},
+  {"numeric-ids",      0,  POPT_ARG_NONE,   &numeric_ids},
+  {"exclude",          0,  POPT_ARG_STRING, 0,              OPT_EXCLUDE},
+  {"include",          0,  POPT_ARG_STRING, 0,              OPT_INCLUDE},
+  {"exclude-from",     0,  POPT_ARG_STRING, 0,              OPT_EXCLUDE_FROM},
+  {"include-from",     0,  POPT_ARG_STRING, 0,              OPT_INCLUDE_FROM},
+  {"safe-links",       0,  POPT_ARG_NONE,   &safe_symlinks},
+  {"help",            'h', POPT_ARG_NONE,   0,              'h'},
+  {"backup",          'b', POPT_ARG_NONE,   &make_backups},
+  {"dry-run",         'n', POPT_ARG_NONE,   &dry_run},
+  {"sparse",          'S', POPT_ARG_NONE,   &sparse_files},
+  {"cvs-exclude",     'C', POPT_ARG_NONE,   &cvs_exclude},
+  {"update",          'u', POPT_ARG_NONE,   &update_only},
+  {"links",           'l', POPT_ARG_NONE,   &preserve_links},
+  {"copy-links",      'L', POPT_ARG_NONE,   &copy_links},
+  {"whole-file",      'W', POPT_ARG_NONE,   &whole_file},
+  {"copy-unsafe-links", 0, POPT_ARG_NONE,   &copy_unsafe_links},
+  {"perms",           'p', POPT_ARG_NONE,   &preserve_perms},
+  {"owner",           'o', POPT_ARG_NONE,   &preserve_uid},
+  {"group",           'g', POPT_ARG_NONE,   &preserve_gid},
+  {"devices",         'D', POPT_ARG_NONE,   &preserve_devices},
+  {"times",           't', POPT_ARG_NONE,   &preserve_times},
+  {"checksum",        'c', POPT_ARG_NONE,   &always_checksum},
+  {"verbose",         'v', POPT_ARG_NONE,   0,               'v'},
+  {"quiet",           'q', POPT_ARG_NONE,   0,               'q'},
+  {"archive",         'a', POPT_ARG_NONE,   0,               'a'}, 
+  {"server",           0,  POPT_ARG_NONE,   &am_server},
+  {"sender",           0,  POPT_ARG_NONE,   0,               OPT_SENDER},
+  {"recursive",       'r', POPT_ARG_NONE,   &recurse},
+  {"relative",        'R', POPT_ARG_NONE,   &relative_paths},
+  {"rsh",             'e', POPT_ARG_STRING, &shell_cmd},
+  {"block-size",      'B', POPT_ARG_INT,    &block_size},
+  {"max-delete",       0,  POPT_ARG_INT,    &max_delete},
+  {"timeout",          0,  POPT_ARG_INT,    &io_timeout},
+  {"temp-dir",        'T', POPT_ARG_STRING, &tmpdir},
+  {"compare-dest",     0,  POPT_ARG_STRING, &compare_dest},
+  /* TODO: Should this take an optional int giving the compression level? */
+  {"compress",        'z', POPT_ARG_NONE,   &do_compression},
+  {"daemon",           0,  POPT_ARG_NONE,   &am_daemon},
+  {"no-detach",        0,  POPT_ARG_NONE,   &no_detach},
+  {"stats",            0,  POPT_ARG_NONE,   &do_stats},
+  {"progress",         0,  POPT_ARG_NONE,   &do_progress},
+  {"partial",          0,  POPT_ARG_NONE,   &keep_partial},
+  {"ignore-errors",    0,  POPT_ARG_NONE,   &ignore_errors},
+  {"blocking-io",      0,  POPT_ARG_NONE,   &blocking_io},
+  {0,                 'P', POPT_ARG_NONE,   0,               'P'},
+  {"config",           0,  POPT_ARG_STRING, &config_file},
+  {"port",             0,  POPT_ARG_INT,    &rsync_port},
+  {"log-format",       0,  POPT_ARG_STRING, &log_format},
+  {"bwlimit",          0,  POPT_ARG_INT,    &bwlimit},
+  {"address",          0,  POPT_ARG_STRING, &bind_address, 0},
+  {"backup-dir",       0,  POPT_ARG_STRING, &backup_dir},
+  {"hard-links",      'H', POPT_ARG_NONE,   &preserve_hard_links},
+  {"read-batch",       0,  POPT_ARG_STRING, &batch_ext, OPT_READ_BATCH},
+  {"write-batch",      0,  POPT_ARG_NONE,   &write_batch},
+#ifdef INET6
+  {0,		      '4', POPT_ARG_VAL,    &default_af_hint,   AF_INET },
+  {0,		      '6', POPT_ARG_VAL,    &default_af_hint,   AF_INET6 },
+#endif
+  {0,0,0,0}
+};


 static char err_buf[100];

+
+/* We store the option error message, if any, so that we can log the
+   connection attempt (which requires parsing the options), and then
+   show the error later on. */
 void option_error(void)
 {
 	if (err_buf[0]) {
-		rprintf(FLOG,"%s", err_buf);
-		rprintf(FERROR,"%s", err_buf);
+		rprintf(FLOG, "%s", err_buf);
+		rprintf(FERROR, "%s: %s", RSYNC_NAME, err_buf);
 	} else {
-		rprintf(FLOG,"Error parsing options - unsupported option?\n");
-		rprintf(FERROR,"Error parsing options - unsupported option?\n");
+		rprintf (FERROR, "Error parsing options: "
+			 "option may be supported on client but not on server?\n");
+		rprintf (FERROR, RSYNC_NAME ": Error parsing options: "
+			 "option may be supported on client but not on server?\n");
 	}
-	exit_cleanup(RERR_UNSUPPORTED);
 }

 /* check to see if we should refuse this option */
@@ -258,19 +367,19 @@ static int check_refuse_options(char *ref, int opt)
 	char *p;
 	const char *name;

-	for (i=0; long_options[i].name; i++) {
+	for (i=0; long_options[i].longName; i++) {
 		if (long_options[i].val == opt) break;
 	}
 	
-	if (!long_options[i].name) return 0;
+	if (!long_options[i].longName) return 0;

-	name = long_options[i].name;
+	name = long_options[i].longName;
 	len = strlen(name);

 	while ((p = strstr(ref,name))) {
 		if ((p==ref || p[-1]==' ') &&
 		    (p[len] == ' ' || p[len] == 0)) {
-			slprintf(err_buf,sizeof(err_buf),
+			snprintf(err_buf,sizeof(err_buf),
 				 "The '%s' option is not supported by this server\n", name);
 			return 1;
 		}
@@ -280,168 +389,93 @@ static int check_refuse_options(char *ref, int opt)
 }


-int parse_arguments(int argc, char *argv[], int frommain)
+static int count_args(char const **argv)
+{
+        int i = 0;
+
+        while (argv[i] != NULL)
+                i++;
+        
+        return i;
+}
+
+
+/* Process command line arguments.  Called on both local and remote.
+ * Returns if all options are OK, otherwise fills in err_buf and
+ * returns 0. */
+int parse_arguments(int *argc, const char ***argv, int frommain)
 {
 	int opt;
-	int option_index;
 	char *ref = lp_refuse_options(module_id);
+        poptContext pc;

-	while ((opt = getopt_long(argc, argv, 
-				  short_options, long_options, &option_index)) 
-	       != -1) {
+        /* TODO: Call poptReadDefaultConfig; handle errors. */

+        /* The context leaks in case of an error, but if there's a
+         * problem we always exit anyhow. */
+        pc = poptGetContext(RSYNC_NAME, *argc, *argv, long_options, 0);
+
+	while ((opt = poptGetNextOpt(pc)) != -1) {
 		if (ref) {
 			if (check_refuse_options(ref, opt)) return 0;
 		}

+                /* most options are handled automatically by popt;
+                 * only special cases are returned and listed here. */
+
 		switch (opt) {
 		case OPT_VERSION:
-			rprintf(FINFO,"rsync version %s  protocol version %d\n\n",
-				VERSION,PROTOCOL_VERSION);
-			rprintf(FINFO,"Written by Andrew Tridgell and Paul Mackerras\n");
+                        print_rsync_version(FINFO);
 			exit_cleanup(0);
 			
-		case OPT_SUFFIX:
-			backup_suffix = optarg;
+		case OPT_MODIFY_WINDOW:
+                        /* The value has already been set by popt, but
+                         * we need to remember that we're using a
+                         * non-default setting. */
+			modify_window_set = 1;
 			break;
 			
-		case OPT_RSYNC_PATH:
-			rsync_path = optarg;
-			break;
-	
-		case OPT_PASSWORD_FILE:
-			password_file =optarg;
-			break;		
-
-		case 'I':
-			ignore_times = 1;
-			break;
-
-		case OPT_SIZE_ONLY:
-			size_only = 1;
-			break;
-
-		case 'x':
-			one_file_system=1;
-			break;
-
-		case OPT_DELETE:
-			delete_mode = 1;
-			break;
-
-		case OPT_EXISTING:
-			only_existing = 1;
-			break;
-
-		case OPT_DELETE_AFTER:
-			delete_after = 1;
-			break;
-
 		case OPT_DELETE_EXCLUDED:
 			delete_excluded = 1;
 			delete_mode = 1;
 			break;

-		case OPT_FORCE:
-			force_delete = 1;
-			break;
-
-		case OPT_NUMERIC_IDS:
-			numeric_ids = 1;
-			break;
-
 		case OPT_EXCLUDE:
-			add_exclude(optarg, 0);
+			add_exclude(poptGetOptArg(pc), 0);
 			break;

 		case OPT_INCLUDE:
-			add_exclude(optarg, 1);
+			add_exclude(poptGetOptArg(pc), 1);
 			break;

 		case OPT_EXCLUDE_FROM:
-			add_exclude_file(optarg,1, 0);
+			add_exclude_file(poptGetOptArg(pc), 1, 0);
 			break;

 		case OPT_INCLUDE_FROM:
-			add_exclude_file(optarg,1, 1);
-			break;
-
-		case OPT_COPY_UNSAFE_LINKS:
-			copy_unsafe_links=1;
-			break;
-
-		case OPT_SAFE_LINKS:
-			safe_symlinks=1;
+			add_exclude_file(poptGetOptArg(pc), 1, 1);
 			break;

 		case 'h':
 			usage(FINFO);
 			exit_cleanup(0);

-		case 'b':
-			make_backups=1;
-			break;
-
-		case 'n':
-			dry_run=1;
-			break;
-
-		case 'S':
-			sparse_files=1;
-			break;
-
-		case 'C':
-			cvs_exclude=1;
-			break;
-
-		case 'u':
-			update_only=1;
-			break;
-
-		case 'l':
-			preserve_links=1;
-			break;
-
-		case 'L':
-			copy_links=1;
-			break;
-
-		case 'W':
-			whole_file=1;
-			break;
-
 		case 'H':
 #if SUPPORT_HARD_LINKS
 			preserve_hard_links=1;
-#else 
-			slprintf(err_buf,sizeof(err_buf),"hard links are not supported on this server\n");
+#else
+                        /* FIXME: Don't say "server" if this is
+                         * happening on the client. */
+                        /* FIXME: Why do we have the duplicated
+                         * rprintf?  Everybody who gets this message
+                         * ought to send it to the client and also to
+                         * the logs. */
+			snprintf(err_buf,sizeof(err_buf),
+                                 "hard links are not supported on this %s\n",
+				 am_server ? "server" : "client");
 			rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
 			return 0;
-#endif
-			break;
-
-		case 'p':
-			preserve_perms=1;
-			break;
-
-		case 'o':
-			preserve_uid=1;
-			break;
-
-		case 'g':
-			preserve_gid=1;
-			break;
-
-		case 'D':
-			preserve_devices=1;
-			break;
-
-		case 't':
-			preserve_times=1;
-			break;
-
-		case 'c':
-			always_checksum=1;
+#endif /* SUPPORT_HARD_LINKS */
 			break;

 		case 'v':
@@ -464,10 +498,6 @@ int parse_arguments(int argc, char *argv[], int frommain)
 			preserve_devices=1;
 			break;

-		case OPT_SERVER:
-			am_server = 1;
-			break;
-
 		case OPT_SENDER:
 			if (!am_server) {
 				usage(FERROR);
@@ -476,99 +506,40 @@ int parse_arguments(int argc, char *argv[], int frommain)
 			am_sender = 1;
 			break;

-		case 'r':
-			recurse = 1;
-			break;
-
-		case 'R':
-			relative_paths = 1;
-			break;
-
-		case 'e':
-			shell_cmd = optarg;
-			break;
-
-		case 'B':
-			block_size = atoi(optarg);
-			break;
-
-		case OPT_MAX_DELETE:
-			max_delete = atoi(optarg);
-			break;
-
-		case OPT_TIMEOUT:
-			io_timeout = atoi(optarg);
-			break;
-
-		case 'T':
-			tmpdir = optarg;
-			break;
-
-		case OPT_COMPARE_DEST:
-			compare_dest = optarg;
-			break;
-
-		case 'z':
-			do_compression = 1;
-			break;
-
-		case OPT_DAEMON:
-			am_daemon = 1;
-			break;
-
-		case OPT_STATS:
-			do_stats = 1;
-			break;
-
-		case OPT_PROGRESS:
-			do_progress = 1;
-			break;
-
-		case OPT_PARTIAL:
-			keep_partial = 1;
-			break;
-
 		case 'P':
 			do_progress = 1;
 			keep_partial = 1;
 			break;

-		case OPT_CONFIG:
-			config_file = optarg;
-			break;
-
-		case OPT_PORT:
-			rsync_port = atoi(optarg);
-			break;
-
-		case OPT_LOG_FORMAT:
-			log_format = optarg;
-			break;
-
-		case OPT_ADDRESS:
-			{
-				struct in_addr *ia;
-				if ((ia = ip_address(optarg))) {
-					socket_address = *ia;
-				}
-			}
-			break;
-
-		case OPT_BACKUP_DIR:
-			backup_dir = optarg;
+		case OPT_READ_BATCH:
+			/* The filename is stored in batch_ext for us by popt */
+			read_batch = 1;
 			break;

 		default:
-			slprintf(err_buf,sizeof(err_buf),"unrecognised option\n");
-			return 0;
+                        /* FIXME: If --daemon is specified, then errors for later
+                         * parameters seem to disappear. */
+                        snprintf(err_buf, sizeof(err_buf),
+                                 "%s%s: %s\n",
+                                 am_server ? "on remote machine: " : "",
+                                 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
+                                 poptStrerror(opt));
+                        return 0;
 		}
 	}
+
+        *argv = poptGetArgs(pc);
+        if (*argv)
+                *argc = count_args(*argv);
+        else
+                *argc = 0;
+
 	return 1;
 }


-/* need to pass all the valid options from the client to the server */
-
+/* Construct a filtered list of options to pass through from the
+ * client to the server */
 void server_options(char **args,int *argc)
 {
 	int ac = *argc;
@@ -576,6 +547,11 @@ void server_options(char **args,int *argc)
 	static char bsize[30];
 	static char iotime[30];
 	static char mdelete[30];
+	static char mwindow[30];
+	static char bw[50];
+	static char fext[20];
+	static char wbatch[14];
+
 	int i, x;

 	args[ac++] = "--server";
@@ -587,6 +563,7 @@ void server_options(char **args,int *argc)
 	argstr[0] = '-';
 	for (i=0;i<verbose;i++)
 		argstr[x++] = 'v';
+
 	/* the -q option is intentionally left out */
 	if (make_backups)
 		argstr[x++] = 'b';
@@ -628,25 +605,48 @@ void server_options(char **args,int *argc)
 		argstr[x++] = 'S';
 	if (do_compression)
 		argstr[x++] = 'z';
+
+	/* this is a complete hack - blame Rusty 
+
+	   this is a hack to make the list_only (remote file list)
+	   more useful */
+	if (list_only && !recurse) 
+		argstr[x++] = 'r';
+
 	argstr[x] = 0;

 	if (x != 1) args[ac++] = argstr;

 	if (block_size != BLOCK_SIZE) {
-		slprintf(bsize,sizeof(bsize),"-B%d",block_size);
+		snprintf(bsize,sizeof(bsize),"-B%d",block_size);
 		args[ac++] = bsize;
 	}    

 	if (max_delete && am_sender) {
-		slprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
+		snprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
 		args[ac++] = mdelete;
 	}    
+	
+	if (write_batch) {
+		snprintf(wbatch,sizeof(wbatch),"--write-batch");
+		args[ac++] = wbatch;
+	}
+
+	if (batch_ext != NULL) {
+		snprintf(fext,sizeof(fext),"--read-batch=%s",batch_ext);
+		args[ac++] = fext;
+	}

 	if (io_timeout) {
-		slprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
+		snprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
 		args[ac++] = iotime;
 	}    

+	if (bwlimit) {
+		snprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
+		args[ac++] = bw;
+	}
+
 	if (strcmp(backup_suffix, BACKUP_SUFFIX)) {
 		args[ac++] = "--suffix";
 		args[ac++] = backup_suffix;
@@ -661,6 +661,12 @@ void server_options(char **args,int *argc)
 	if (size_only)
 		args[ac++] = "--size-only";

+	if (modify_window_set) {
+	        snprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
+			 modify_window);
+		args[ac++] = mwindow;
+	}
+
 	if (keep_partial)
 		args[ac++] = "--partial";

@@ -670,6 +676,9 @@ void server_options(char **args,int *argc)
 	if (delete_after)
 		args[ac++] = "--delete-after";

+	if (ignore_errors)
+		args[ac++] = "--ignore-errors";
+
 	if (copy_unsafe_links)
 		args[ac++] = "--copy-unsafe-links";

--- a/packaging/lsb/rsync.spec
+++ b/packaging/lsb/rsync.spec
@@ -0,0 +1,84 @@
+Summary: Program for efficient remote updates of files.
+Name: rsync
+Version: 2.5.1
+Release: 1
+Copyright: GPL
+Group: Applications/Networking
+Source:	ftp://samba.anu.edu.au/pub/rsync/rsync-2.5.1.tar.gz
+URL: http://samba.anu.edu.au/rsync/
+Packager: Andrew Tridgell <tridge@samba.anu.edu.au>
+BuildRoot: /tmp/rsync
+
+%description
+rsync is a replacement for rcp that has many more features.
+
+rsync uses the "rsync algorithm" which provides a very fast method for
+bringing remote files into sync. It does this by sending just the
+differences in the files across the link, without requiring that both
+sets of files are present at one of the ends of the link beforehand.
+
+A technical report describing the rsync algorithm is included with
+this package. 
+
+%changelog
+* Mon Sept 11 2000 John H Terpstra <jht@turbolinux.com>
+  Changed target paths to be Linux Standards Base compliant
+
+* Mon Jan 25 1999 Stefan Hornburg <racke@linuxia.de>
+  quoted RPM_OPT_FLAGS for the sake of robustness  
+* Mon May 18 1998 Andrew Tridgell <tridge@samba.anu.edu.au>
+  reworked for auto-building when I release rsync (tridge@samba.anu.edu.au)
+
+* Sat May 16 1998 John H Terpstra <jht@aquasoft.com.au>
+  Upgraded to Rsync 2.0.6
+    -new feature anonymous rsync
+
+* Mon Apr  6 1998 Douglas N. Arnold <dna@math.psu.edu>
+
+Upgrade to rsync version 1.7.2.
+
+* Sun Mar  1 1998 Douglas N. Arnold <dna@math.psu.edu>
+
+Built 1.6.9-1 based on the 1.6.3-2 spec file of John A. Martin.
+Changes from 1.6.3-2 packaging: added latex and dvips commands
+to create tech_report.ps.
+
+* Mon Aug 25 1997 John A. Martin <jam@jamux.com>
+
+Built 1.6.3-2 after finding no rsync-1.6.3-1.src.rpm although there
+was an ftp://ftp.redhat.com/pub/contrib/alpha/rsync-1.6.3-1.alpha.rpm
+showing no packager nor signature but giving 
+"Source RPM: rsync-1.6.3-1.src.rpm".
+
+Changes from 1.6.2-1 packaging: added '$RPM_OPT_FLAGS' to make, strip
+to '%build', removed '%prefix'.
+
+* Thu Apr 10 1997 Michael De La Rue <miked@ed.ac.uk>
+
+rsync-1.6.2-1 packaged.  (This entry by jam to credit Michael for the
+previous package(s).)
+
+%prep
+%setup
+
+%build
+./configure --prefix=/usr --mandir=/usr/share/man
+make CFLAGS="$RPM_OPT_FLAGS"
+strip rsync
+
+%install
+mkdir -p $RPM_BUILD_ROOT/usr/{bin,share/man/{man1,man5}}
+install -m755 rsync $RPM_BUILD_ROOT/usr/bin
+install -m644 rsync.1 $RPM_BUILD_ROOT/usr/share/man/man1
+install -m644 rsyncd.conf.5 $RPM_BUILD_ROOT/usr/share/man/man5
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%attr(-,root,root) /usr/bin/rsync
+%attr(-,root,root) /usr/share/man/man1/rsync.1
+%attr(-,root,root) /usr/share/man/man5/rsyncd.conf.5
+%attr(-,root,root) %doc tech_report.tex
+%attr(-,root,root) %doc README
+%attr(-,root,root) %doc COPYING
--- a/packaging/lsb/rsync.spec.tmpl
+++ b/packaging/lsb/rsync.spec.tmpl
@@ -0,0 +1,84 @@
+Summary: Program for efficient remote updates of files.
+Name: rsync
+Version: PVERSION
+Release: PRELEASE
+Copyright: GPL
+Group: Applications/Networking
+Source:	ftp://samba.anu.edu.au/pub/rsync/rsync-PVERSION.tar.gz
+URL: http://samba.anu.edu.au/rsync/
+Packager: Andrew Tridgell <tridge@samba.anu.edu.au>
+BuildRoot: /tmp/rsync
+
+%description
+rsync is a replacement for rcp that has many more features.
+
+rsync uses the "rsync algorithm" which provides a very fast method for
+bringing remote files into sync. It does this by sending just the
+differences in the files across the link, without requiring that both
+sets of files are present at one of the ends of the link beforehand.
+
+A technical report describing the rsync algorithm is included with
+this package. 
+
+%changelog
+* Mon Sept 11 2000 John H Terpstra <jht@turbolinux.com>
+  Changed target paths to be Linux Standards Base compliant
+
+* Mon Jan 25 1999 Stefan Hornburg <racke@linuxia.de>
+  quoted RPM_OPT_FLAGS for the sake of robustness  
+* Mon May 18 1998 Andrew Tridgell <tridge@samba.anu.edu.au>
+  reworked for auto-building when I release rsync (tridge@samba.anu.edu.au)
+
+* Sat May 16 1998 John H Terpstra <jht@aquasoft.com.au>
+  Upgraded to Rsync 2.0.6
+    -new feature anonymous rsync
+
+* Mon Apr  6 1998 Douglas N. Arnold <dna@math.psu.edu>
+
+Upgrade to rsync version 1.7.2.
+
+* Sun Mar  1 1998 Douglas N. Arnold <dna@math.psu.edu>
+
+Built 1.6.9-1 based on the 1.6.3-2 spec file of John A. Martin.
+Changes from 1.6.3-2 packaging: added latex and dvips commands
+to create tech_report.ps.
+
+* Mon Aug 25 1997 John A. Martin <jam@jamux.com>
+
+Built 1.6.3-2 after finding no rsync-1.6.3-1.src.rpm although there
+was an ftp://ftp.redhat.com/pub/contrib/alpha/rsync-1.6.3-1.alpha.rpm
+showing no packager nor signature but giving 
+"Source RPM: rsync-1.6.3-1.src.rpm".
+
+Changes from 1.6.2-1 packaging: added '$RPM_OPT_FLAGS' to make, strip
+to '%build', removed '%prefix'.
+
+* Thu Apr 10 1997 Michael De La Rue <miked@ed.ac.uk>
+
+rsync-1.6.2-1 packaged.  (This entry by jam to credit Michael for the
+previous package(s).)
+
+%prep
+%setup
+
+%build
+./configure --prefix=/usr --mandir=/usr/share/man
+make CFLAGS="$RPM_OPT_FLAGS"
+strip rsync
+
+%install
+mkdir -p $RPM_BUILD_ROOT/usr/{bin,share/man/{man1,man5}}
+install -m755 rsync $RPM_BUILD_ROOT/usr/bin
+install -m644 rsync.1 $RPM_BUILD_ROOT/usr/share/man/man1
+install -m644 rsyncd.conf.5 $RPM_BUILD_ROOT/usr/share/man/man5
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%attr(-,root,root) /usr/bin/rsync
+%attr(-,root,root) /usr/share/man/man1/rsync.1
+%attr(-,root,root) /usr/share/man/man5/rsyncd.conf.5
+%attr(-,root,root) %doc tech_report.tex
+%attr(-,root,root) %doc README
+%attr(-,root,root) %doc COPYING
--- a/packaging/redhat/5.0/rsync.spec
+++ b/packaging/redhat/5.0/rsync.spec
@@ -1,10 +1,10 @@
 Summary: Program for efficient remote updates of files.
 Name: rsync
-Version: 2.4.1
+Version: 2.5.1
 Release: 1
 Copyright: GPL
 Group: Applications/Networking
-Source:	ftp://samba.anu.edu.au/pub/rsync/rsync-2.4.1.tar.gz
+Source:	ftp://samba.anu.edu.au/pub/rsync/rsync-2.5.1.tar.gz
 URL: http://samba.anu.edu.au/rsync/
 Packager: Andrew Tridgell <tridge@samba.anu.edu.au>
 BuildRoot: /tmp/rsync
--- a/packaging/redhat/7.1/rsync.spec
+++ b/packaging/redhat/7.1/rsync.spec
@@ -0,0 +1,81 @@
+Summary: Program for efficient remote updates of files.
+Name: rsync
+Version: 2.5.1
+Release: 1
+Copyright: GPL
+Group: Applications/Networking
+Source:	ftp://samba.anu.edu.au/pub/rsync/rsync-2.5.1.tar.gz
+URL: http://samba.anu.edu.au/rsync/
+Packager: Andrew Tridgell <tridge@samba.anu.edu.au>
+BuildRoot: /tmp/rsync
+
+%description
+rsync is a replacement for rcp that has many more features.
+
+rsync uses the "rsync algorithm" which provides a very fast method for
+bringing remote files into sync. It does this by sending just the
+differences in the files across the link, without requiring that both
+sets of files are present at one of the ends of the link beforehand.
+
+A technical report describing the rsync algorithm is included with
+this package. 
+
+%changelog
+* Mon Jan 25 1999 Stefan Hornburg <racke@linuxia.de>
+  quoted RPM_OPT_FLAGS for the sake of robustness  
+* Mon May 18 1998 Andrew Tridgell <tridge@samba.anu.edu.au>
+  reworked for auto-building when I release rsync (tridge@samba.anu.edu.au)
+
+* Sat May 16 1998 John H Terpstra <jht@aquasoft.com.au>
+  Upgraded to Rsync 2.0.6
+    -new feature anonymous rsync
+
+* Mon Apr  6 1998 Douglas N. Arnold <dna@math.psu.edu>
+
+Upgrade to rsync version 1.7.2.
+
+* Sun Mar  1 1998 Douglas N. Arnold <dna@math.psu.edu>
+
+Built 1.6.9-1 based on the 1.6.3-2 spec file of John A. Martin.
+Changes from 1.6.3-2 packaging: added latex and dvips commands
+to create tech_report.ps.
+
+* Mon Aug 25 1997 John A. Martin <jam@jamux.com>
+
+Built 1.6.3-2 after finding no rsync-1.6.3-1.src.rpm although there
+was an ftp://ftp.redhat.com/pub/contrib/alpha/rsync-1.6.3-1.alpha.rpm
+showing no packager nor signature but giving 
+"Source RPM: rsync-1.6.3-1.src.rpm".
+
+Changes from 1.6.2-1 packaging: added '$RPM_OPT_FLAGS' to make, strip
+to '%build', removed '%prefix'.
+
+* Thu Apr 10 1997 Michael De La Rue <miked@ed.ac.uk>
+
+rsync-1.6.2-1 packaged.  (This entry by jam to credit Michael for the
+previous package(s).)
+
+%prep
+%setup
+
+%build
+./configure --prefix=/usr
+make CFLAGS="$RPM_OPT_FLAGS"
+strip rsync
+
+%install
+mkdir -p $RPM_BUILD_ROOT/usr/{bin,man/{man1,man5}}
+install -m755 rsync $RPM_BUILD_ROOT/usr/bin
+install -m644 rsync.1* $RPM_BUILD_ROOT/usr/man/man1
+install -m644 rsyncd.conf.5* $RPM_BUILD_ROOT/usr/man/man5
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%attr(-,root,root) /usr/bin/rsync
+%attr(-,root,root) /usr/man/man1/rsync.1*
+%attr(-,root,root) /usr/man/man5/rsyncd.conf.5*
+%attr(-,root,root) %doc tech_report.tex
+%attr(-,root,root) %doc README
+%attr(-,root,root) %doc COPYING
--- a/packaging/redhat/7.1/rsync.spec.tmpl
+++ b/packaging/redhat/7.1/rsync.spec.tmpl
@@ -0,0 +1,81 @@
+Summary: Program for efficient remote updates of files.
+Name: rsync
+Version: PVERSION
+Release: PRELEASE
+Copyright: GPL
+Group: Applications/Networking
+Source:	ftp://samba.anu.edu.au/pub/rsync/rsync-PVERSION.tar.gz
+URL: http://samba.anu.edu.au/rsync/
+Packager: Andrew Tridgell <tridge@samba.anu.edu.au>
+BuildRoot: /tmp/rsync
+
+%description
+rsync is a replacement for rcp that has many more features.
+
+rsync uses the "rsync algorithm" which provides a very fast method for
+bringing remote files into sync. It does this by sending just the
+differences in the files across the link, without requiring that both
+sets of files are present at one of the ends of the link beforehand.
+
+A technical report describing the rsync algorithm is included with
+this package. 
+
+%changelog
+* Mon Jan 25 1999 Stefan Hornburg <racke@linuxia.de>
+  quoted RPM_OPT_FLAGS for the sake of robustness  
+* Mon May 18 1998 Andrew Tridgell <tridge@samba.anu.edu.au>
+  reworked for auto-building when I release rsync (tridge@samba.anu.edu.au)
+
+* Sat May 16 1998 John H Terpstra <jht@aquasoft.com.au>
+  Upgraded to Rsync 2.0.6
+    -new feature anonymous rsync
+
+* Mon Apr  6 1998 Douglas N. Arnold <dna@math.psu.edu>
+
+Upgrade to rsync version 1.7.2.
+
+* Sun Mar  1 1998 Douglas N. Arnold <dna@math.psu.edu>
+
+Built 1.6.9-1 based on the 1.6.3-2 spec file of John A. Martin.
+Changes from 1.6.3-2 packaging: added latex and dvips commands
+to create tech_report.ps.
+
+* Mon Aug 25 1997 John A. Martin <jam@jamux.com>
+
+Built 1.6.3-2 after finding no rsync-1.6.3-1.src.rpm although there
+was an ftp://ftp.redhat.com/pub/contrib/alpha/rsync-1.6.3-1.alpha.rpm
+showing no packager nor signature but giving 
+"Source RPM: rsync-1.6.3-1.src.rpm".
+
+Changes from 1.6.2-1 packaging: added '$RPM_OPT_FLAGS' to make, strip
+to '%build', removed '%prefix'.
+
+* Thu Apr 10 1997 Michael De La Rue <miked@ed.ac.uk>
+
+rsync-1.6.2-1 packaged.  (This entry by jam to credit Michael for the
+previous package(s).)
+
+%prep
+%setup
+
+%build
+./configure --prefix=/usr
+make CFLAGS="$RPM_OPT_FLAGS"
+strip rsync
+
+%install
+mkdir -p $RPM_BUILD_ROOT/usr/{bin,man/{man1,man5}}
+install -m755 rsync $RPM_BUILD_ROOT/usr/bin
+install -m644 rsync.1* $RPM_BUILD_ROOT/usr/man/man1
+install -m644 rsyncd.conf.5* $RPM_BUILD_ROOT/usr/man/man5
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%files
+%attr(-,root,root) /usr/bin/rsync
+%attr(-,root,root) /usr/man/man1/rsync.1*
+%attr(-,root,root) /usr/man/man5/rsyncd.conf.5*
+%attr(-,root,root) %doc tech_report.tex
+%attr(-,root,root) %doc README
+%attr(-,root,root) %doc COPYING
--- a/popt/.cvsignore
+++ b/popt/.cvsignore
@@ -0,0 +1,9 @@
+ID
+Makefile
+config.cache
+config.h
+config.log
+config.status
+dummy
+rsync
+zlib/dummy
--- a/popt/CHANGES
+++ b/popt/CHANGES
@@ -0,0 +1,43 @@
+1.3 ->
+	- heavy dose of const's
+	- poptParseArgvString() now NULL terminates the list
+
+1.2.3 -> 1.3
+	- added support for single -
+	- misc bug fixes
+	- portability improvements
+
+1.2.2 -> 1.2.3
+	- fixed memset() in help message generation (Dale Hawkins)
+	- added extern "C" stuff to popt.h for C++ compilers (Dale Hawkins)
+	- const'ified poptParseArgvString (Jeff Garzik)
+
+1.2.1 -> 1.2.2
+	- fixed bug in chaind alias happens which seems to have only
+	  affected --triggers in rpm
+	- added POPT_ARG_VAL
+	- popt.3 installed by default
+
+1.2 -> 1.2.1
+	- added POPT_ARG_INTL_DOMAIN (Elliot Lee)
+	- updated Makefile's to be more GNUish (Elliot Lee)
+
+1.1 -> 1.2
+	- added popt.3 man page (Robert Lynch)
+	- don't use mmap anymore (its lack of portability isn't worth the
+	  trouble)
+	- added test script
+	- added support for exec
+	- removed support for *_POPT_ALIASES env variable -- it was a bad
+	  idea
+	- reorganized into multiple source files
+	- added automatic help generation, POPT_AUTOHELP
+	- added table callbacks
+	- added table inclusion
+	- updated man page for new features
+	- added test scripts
+
+1.0 -> 1.1
+	- moved to autoconf (Fred Fish)
+	- added STRERROR replacement (Norbert Warmuth)
+	- added const keywords (Bruce Perens)
--- a/popt/COPYING
+++ b/popt/COPYING
@@ -0,0 +1,22 @@
+Copyright (c) 1998  Red Hat Software
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
--- a/popt/README
+++ b/popt/README
@@ -0,0 +1,18 @@
+This is the popt command line option parsing library. While it is similiar
+to getopt(3), it contains a number of enhancements, including:
+
+	1) popt is fully reentrant
+	2) popt can parse arbitrary argv[] style arrays while 
+	   getopt(2) makes this quite difficult
+	3) popt allows users to alias command line arguments
+	4) popt provides convience functions for parsting strings
+	   into argv[] style arrays
+
+popt is used by rpm, the Red Hat install program, and many other Red Hat
+utilities, all of which provide excellent examples of how to use popt. 
+Complete documentation on popt is available in popt.ps (included in this
+tarball), which is excerpted with permission from the book "Linux
+Application Development" by Michael K. Johnson and Erik Troan (availble
+from Addison Wesley in May, 1998).
+
+Comments on popt should be addressed to ewt@redhat.com.
--- a/popt/config.log
+++ b/popt/config.log
@@ -0,0 +1,104 @@
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+configure:592: checking host system type
+configure:613: checking target system type
+configure:631: checking build system type
+configure:665: checking for a BSD compatible install
+configure:718: checking whether build environment is sane
+configure:775: checking whether make sets ${MAKE}
+configure:821: checking for working aclocal
+configure:834: checking for working autoconf
+configure:847: checking for working automake
+configure:860: checking for working autoheader
+configure:873: checking for working makeinfo
+configure:891: checking for gcc
+configure:1004: checking whether the C compiler (gcc  ) works
+configure:1020: gcc -o conftest    conftest.c  1>&5
+configure:1046: checking whether the C compiler (gcc  ) is a cross-compiler
+configure:1051: checking whether we are using GNU C
+configure:1079: checking whether gcc accepts -g
+configure:1111: checking for POSIXized ISC
+configure:1135: checking for gcc
+configure:1248: checking whether the C compiler (gcc -g -O2 ) works
+configure:1264: gcc -o conftest -g -O2   conftest.c  1>&5
+configure:1290: checking whether the C compiler (gcc -g -O2 ) is a cross-compiler
+configure:1295: checking whether we are using GNU C
+configure:1323: checking whether gcc accepts -g
+configure:1355: checking how to run the C preprocessor
+configure:1436: checking whether gcc needs -traditional
+configure:1485: checking for gcc option to accept ANSI C
+configure:1564: checking for function prototypes
+configure:1795: checking for ranlib
+configure:1834: checking for ld used by GCC
+configure:1896: checking if the linker (/usr/bin/ld) is GNU ld
+configure:1912: checking for BSD-compatible nm
+configure:1948: checking whether ln -s works
+ltconfig:603: checking for object suffix
+ltconfig:604: gcc -c -g -O2  conftest.c 1>&5
+ltconfig:629: checking for executable suffix
+ltconfig:630: gcc -o conftest -g -O2   conftest.c  1>&5
+ltconfig:776: checking if gcc PIC flag -fPIC works
+ltconfig:777: gcc -c -g -O2 -fPIC -DPIC  conftest.c 1>&5
+ltconfig:829: checking if gcc supports -c -o file.o
+ltconfig:830: gcc -c -g -O2 -o out/conftest2.o  conftest.c 1>&5
+ltconfig:862: checking if gcc supports -c -o file.lo
+ltconfig:863: gcc -c -g -O2 -c -o conftest.lo  conftest.c 1>&5
+ltconfig:914: checking if gcc supports -fno-rtti -fno-exceptions
+ltconfig:915: gcc -c -g -O2 -fno-rtti -fno-exceptions -c conftest.c  conftest.c 1>&5
+ltconfig:958: checking if gcc static flag -static works
+ltconfig:959: gcc -o conftest -g -O2   -static conftest.c  1>&5
+GNU ld version 2.10.91 (with BFD 2.10.91.0.2)
+ltconfig:1635: checking if global_symbol_pipe works
+ltconfig:1636: gcc -c -g -O2  conftest.c 1>&5
+ltconfig:1639: eval "/usr/bin/nm -B conftest.o | sed -n -e 's/^.*[ 	]\([ABCDGISTW]\)[ 	][ 	]*\(\)\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2\3 \3/p' > conftest.nm"
+ltconfig:1691: gcc -o conftest -g -O2 -fno-builtin -fno-rtti -fno-exceptions   conftest.c conftstm.o 1>&5
+configure:2150: checking for a BSD compatible install
+configure:2231: checking for alloca.h
+configure:2231: checking for libintl.h
+configure:2231: checking for mcheck.h
+configure:2231: checking for unistd.h
+configure:2268: checking for /usr/ucblib in LIBS
+configure:2284: checking for GNU xgettext
+configure:2294: checking for strerror
+configure:2294: checking for mtrace
+configure:2347: checking for setreuid
+configure:2438: checking for working const
+configure:2513: checking for inline
+configure:2553: checking for off_t
+configure:2586: checking for size_t
+configure:2621: checking for working alloca.h
+configure:2654: checking for alloca
+configure:2856: checking for unistd.h
+configure:2895: checking for getpagesize
+configure:2948: checking for working mmap
+configure:3124: checking for argz.h
+configure:3124: checking for limits.h
+configure:3124: checking for locale.h
+configure:3124: checking for nl_types.h
+configure:3124: checking for malloc.h
+configure:3124: checking for string.h
+configure:3124: checking for unistd.h
+configure:3124: checking for sys/param.h
+configure:3164: checking for getcwd
+configure:3164: checking for munmap
+configure:3164: checking for putenv
+configure:3164: checking for setenv
+configure:3164: checking for setlocale
+configure:3164: checking for strchr
+configure:3164: checking for strcasecmp
+configure:3164: checking for strdup
+configure:3164: checking for __argz_count
+configure:3164: checking for __argz_stringify
+configure:3164: checking for __argz_next
+configure:3283: checking for LC_MESSAGES
+configure:3316: checking whether NLS is requested
+configure:3336: checking whether included gettext is requested
+configure:3355: checking for libintl.h
+configure:3382: checking for gettext in libc
+configure:3508: checking for msgfmt
+configure:3542: checking for dcgettext
+configure:3597: checking for gmsgfmt
+configure:3633: checking for xgettext
+configure:3673: gcc -o conftest -Wall -g -O2   conftest.c  1>&5
+configure:4131: checking for catalogs to be installed
--- a/popt/dummy.in
+++ b/popt/dummy.in
--- a/popt/findme.c
+++ b/popt/findme.c
@@ -0,0 +1,46 @@
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from 
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#include "system.h"
+#include "findme.h"
+
+const char * findProgramPath(const char * argv0) {
+    char * path = getenv("PATH");
+    char * pathbuf;
+    char * start, * chptr;
+    char * buf, *local = NULL;
+
+    /* If there is a / in the argv[0], it has to be an absolute
+       path */
+    if (strchr(argv0, '/'))
+	return xstrdup(argv0);
+
+    if (!path) return NULL;
+
+    local = start = pathbuf = malloc(strlen(path) + 1);
+    buf = malloc(strlen(path) + strlen(argv0) + 2);
+    strcpy(pathbuf, path);
+
+    chptr = NULL;
+    do {
+	if ((chptr = strchr(start, ':')))
+	    *chptr = '\0';
+	sprintf(buf, "%s/%s", start, argv0);
+
+	if (!access(buf, X_OK)) {
+		if (local) free(local);
+		return buf;
+	}
+
+	if (chptr) 
+	    start = chptr + 1;
+	else
+	    start = NULL;
+    } while (start && *start);
+
+    free(buf);
+    if (local) free(local);
+
+    return NULL;
+}
--- a/popt/findme.h
+++ b/popt/findme.h
@@ -0,0 +1,10 @@
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from 
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#ifndef H_FINDME
+#define H_FINDME
+
+const char * findProgramPath(const char * argv0);
+
+#endif
--- a/popt/popt.c
+++ b/popt/popt.c
@@ -0,0 +1,782 @@
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#include "system.h"
+#include "findme.h"
+#include "poptint.h"
+
+#ifndef HAVE_STRERROR
+static char * strerror(int errno) {
+    extern int sys_nerr;
+    extern char * sys_errlist[];
+
+    if ((0 <= errno) && (errno < sys_nerr))
+	return sys_errlist[errno];
+    else
+	return POPT_("unknown errno");
+}
+#endif
+
+void poptSetExecPath(poptContext con, const char * path, int allowAbsolute) {
+    if (con->execPath) xfree(con->execPath);
+    con->execPath = xstrdup(path);
+    con->execAbsolute = allowAbsolute;
+}
+
+static void invokeCallbacks(poptContext con, const struct poptOption * table,
+			    int post) {
+    const struct poptOption * opt = table;
+    poptCallbackType cb;
+
+    while (opt->longName || opt->shortName || opt->arg) {
+	if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
+	    invokeCallbacks(con, opt->arg, post);
+	} else if (((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) &&
+		   ((!post && (opt->argInfo & POPT_CBFLAG_PRE)) ||
+		    ( post && (opt->argInfo & POPT_CBFLAG_POST)))) {
+	    cb = (poptCallbackType)opt->arg;
+	    cb(con, post ? POPT_CALLBACK_REASON_POST : POPT_CALLBACK_REASON_PRE,
+	       NULL, NULL, opt->descrip);
+	}
+	opt++;
+    }
+}
+
+poptContext poptGetContext(const char * name, int argc, const char ** argv,
+			   const struct poptOption * options, int flags) {
+    poptContext con = malloc(sizeof(*con));
+
+    memset(con, 0, sizeof(*con));
+
+    con->os = con->optionStack;
+    con->os->argc = argc;
+    con->os->argv = argv;
+    con->os->argb = NULL;
+
+    if (!(flags & POPT_CONTEXT_KEEP_FIRST))
+	con->os->next = 1;			/* skip argv[0] */
+
+    con->leftovers = calloc( (argc + 1), sizeof(char *) );
+    con->options = options;
+    con->aliases = NULL;
+    con->numAliases = 0;
+    con->flags = flags;
+    con->execs = NULL;
+    con->numExecs = 0;
+    con->finalArgvAlloced = argc * 2;
+    con->finalArgv = calloc( con->finalArgvAlloced, sizeof(*con->finalArgv) );
+    con->execAbsolute = 1;
+    con->arg_strip = NULL;
+
+    if (getenv("POSIXLY_CORRECT") || getenv("POSIX_ME_HARDER"))
+	con->flags |= POPT_CONTEXT_POSIXMEHARDER;
+
+    if (name)
+	con->appName = strcpy(malloc(strlen(name) + 1), name);
+
+    invokeCallbacks(con, con->options, 0);
+
+    return con;
+}
+
+static void cleanOSE(struct optionStackEntry *os)
+{
+    if (os->nextArg) {
+	xfree(os->nextArg);
+	os->nextArg = NULL;
+    }
+    if (os->argv) {
+	xfree(os->argv);
+	os->argv = NULL;
+    }
+    if (os->argb) {
+	PBM_FREE(os->argb);
+	os->argb = NULL;
+    }
+}
+
+void poptResetContext(poptContext con) {
+    int i;
+
+    while (con->os > con->optionStack) {
+	cleanOSE(con->os--);
+    }
+    if (con->os->argb) {
+	PBM_FREE(con->os->argb);
+	con->os->argb = NULL;
+    }
+    con->os->currAlias = NULL;
+    con->os->nextCharArg = NULL;
+    con->os->nextArg = NULL;
+    con->os->next = 1;			/* skip argv[0] */
+
+    con->numLeftovers = 0;
+    con->nextLeftover = 0;
+    con->restLeftover = 0;
+    con->doExec = NULL;
+
+    for (i = 0; i < con->finalArgvCount; i++) {
+	if (con->finalArgv[i]) {
+	    xfree(con->finalArgv[i]);
+	    con->finalArgv[i] = NULL;
+	}
+    }
+
+    con->finalArgvCount = 0;
+
+    if (con->arg_strip) {
+	PBM_FREE(con->arg_strip);
+	con->arg_strip = NULL;
+    }
+}
+
+/* Only one of longName, shortName may be set at a time */
+static int handleExec(poptContext con, char * longName, char shortName) {
+    int i;
+
+    i = con->numExecs - 1;
+    if (longName) {
+	while (i >= 0 && (!con->execs[i].longName ||
+	    strcmp(con->execs[i].longName, longName))) i--;
+    } else {
+	while (i >= 0 &&
+	    con->execs[i].shortName != shortName) i--;
+    }
+
+    if (i < 0) return 0;
+
+    if (con->flags & POPT_CONTEXT_NO_EXEC)
+	return 1;
+
+    if (con->doExec == NULL) {
+	con->doExec = con->execs + i;
+	return 1;
+    }
+
+    /* We already have an exec to do; remember this option for next
+       time 'round */
+    if ((con->finalArgvCount + 1) >= (con->finalArgvAlloced)) {
+	con->finalArgvAlloced += 10;
+	con->finalArgv = realloc(con->finalArgv,
+			sizeof(*con->finalArgv) * con->finalArgvAlloced);
+    }
+
+    i = con->finalArgvCount++;
+    {	char *s  = malloc((longName ? strlen(longName) : 0) + 3);
+	if (longName)
+	    sprintf(s, "--%s", longName);
+	else
+	    sprintf(s, "-%c", shortName);
+	con->finalArgv[i] = s;
+    }
+
+    return 1;
+}
+
+/* Only one of longName, shortName may be set at a time */
+static int handleAlias(poptContext con, const char * longName, char shortName,
+		       /*@keep@*/ const char * nextCharArg) {
+    int i;
+
+    if (con->os->currAlias && con->os->currAlias->longName && longName &&
+	!strcmp(con->os->currAlias->longName, longName))
+	return 0;
+    if (con->os->currAlias && shortName &&
+	    shortName == con->os->currAlias->shortName)
+	return 0;
+
+    i = con->numAliases - 1;
+    if (longName) {
+	while (i >= 0 && (!con->aliases[i].longName ||
+	    strcmp(con->aliases[i].longName, longName))) i--;
+    } else {
+	while (i >= 0 &&
+	    con->aliases[i].shortName != shortName) i--;
+    }
+
+    if (i < 0) return 0;
+
+    if ((con->os - con->optionStack + 1) == POPT_OPTION_DEPTH)
+	return POPT_ERROR_OPTSTOODEEP;
+
+    if (nextCharArg && *nextCharArg)
+	con->os->nextCharArg = nextCharArg;
+
+    con->os++;
+    con->os->next = 0;
+    con->os->stuffed = 0;
+    con->os->nextArg = NULL;
+    con->os->nextCharArg = NULL;
+    con->os->currAlias = con->aliases + i;
+    poptDupArgv(con->os->currAlias->argc, con->os->currAlias->argv,
+		&con->os->argc, &con->os->argv);
+    con->os->argb = NULL;
+
+    return 1;
+}
+
+static void execCommand(poptContext con) {
+    const char ** argv;
+    int pos = 0;
+    const char * script = con->doExec->script;
+
+    argv = malloc(sizeof(*argv) *
+			(6 + con->numLeftovers + con->finalArgvCount));
+
+    if (!con->execAbsolute && strchr(script, '/')) return;
+
+    if (!strchr(script, '/') && con->execPath) {
+	char *s = malloc(strlen(con->execPath) + strlen(script) + 2);
+	sprintf(s, "%s/%s", con->execPath, script);
+	argv[pos] = s;
+    } else {
+	argv[pos] = script;
+    }
+    pos++;
+
+    argv[pos] = findProgramPath(con->os->argv[0]);
+    if (argv[pos]) pos++;
+    argv[pos++] = ";";
+
+    memcpy(argv + pos, con->finalArgv, sizeof(*argv) * con->finalArgvCount);
+    pos += con->finalArgvCount;
+
+    if (con->numLeftovers) {
+	argv[pos++] = "--";
+	memcpy(argv + pos, con->leftovers, sizeof(*argv) * con->numLeftovers);
+	pos += con->numLeftovers;
+    }
+
+    argv[pos++] = NULL;
+
+#ifdef __hpux
+    setresuid(getuid(), getuid(),-1);
+#else
+/*
+ * XXX " ... on BSD systems setuid() should be preferred over setreuid()"
+ * XXX 	sez' Timur Bakeyev <mc@bat.ru>
+ * XXX	from Norbert Warmuth <nwarmuth@privat.circular.de>
+ */
+#if defined(HAVE_SETUID)
+    setuid(getuid());
+#elif defined (HAVE_SETREUID)
+    setreuid(getuid(), getuid()); /*hlauer: not portable to hpux9.01 */
+#else
+    ; /* Can't drop privileges */
+#endif
+#endif
+
+    execvp(argv[0], (char *const *)argv);
+}
+
+/*@observer@*/ static const struct poptOption *
+findOption(const struct poptOption * table, const char * longName,
+    char shortName,
+    /*@out@*/ poptCallbackType * callback, /*@out@*/ const void ** callbackData,
+    int singleDash)
+{
+    const struct poptOption * opt = table;
+    const struct poptOption * opt2;
+    const struct poptOption * cb = NULL;
+
+    /* This happens when a single - is given */
+    if (singleDash && !shortName && !*longName)
+	shortName = '-';
+
+    while (opt->longName || opt->shortName || opt->arg) {
+	if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
+	    opt2 = findOption(opt->arg, longName, shortName, callback,
+			      callbackData, singleDash);
+	    if (opt2) {
+		if (*callback && !*callbackData)
+		    *callbackData = opt->descrip;
+		return opt2;
+	    }
+	} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_CALLBACK) {
+	    cb = opt;
+	} else if (longName && opt->longName &&
+		   (!singleDash || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) &&
+		   !strcmp(longName, opt->longName)) {
+	    break;
+	} else if (shortName && shortName == opt->shortName) {
+	    break;
+	}
+	opt++;
+    }
+
+    if (!opt->longName && !opt->shortName) return NULL;
+    *callbackData = NULL;
+    *callback = NULL;
+    if (cb) {
+	*callback = (poptCallbackType)cb->arg;
+	if (!(cb->argInfo & POPT_CBFLAG_INC_DATA))
+	    *callbackData = cb->descrip;
+    }
+
+    return opt;
+}
+
+static const char *findNextArg(poptContext con, unsigned argx, int delete)
+{
+    struct optionStackEntry * os = con->os;
+    const char * arg;
+
+    do {
+	int i;
+	arg = NULL;
+	while (os->next == os->argc && os > con->optionStack) os--;
+	if (os->next == os->argc && os == con->optionStack) break;
+	for (i = os->next; i < os->argc; i++) {
+	    if (os->argb && PBM_ISSET(i, os->argb)) continue;
+	    if (*os->argv[i] == '-') continue;
+	    if (--argx > 0) continue;
+	    arg = os->argv[i];
+	    if (delete) {
+		if (os->argb == NULL) os->argb = PBM_ALLOC(os->argc);
+		PBM_SET(i, os->argb);
+	    }
+	    break;
+	}
+	if (os > con->optionStack) os--;
+    } while (arg == NULL);
+    return arg;
+}
+
+static /*@only@*/ const char * expandNextArg(poptContext con, const char * s)
+{
+    const char *a;
+    size_t alen;
+    char *t, *te;
+    size_t tn = strlen(s) + 1;
+    char c;
+
+    te = t = malloc(tn);;
+    while ((c = *s++) != '\0') {
+	switch (c) {
+#if 0	/* XXX can't do this */
+	case '\\':	/* escape */
+	    c = *s++;
+	    break;
+#endif
+	case '!':
+	    if (!(s[0] == '#' && s[1] == ':' && s[2] == '+'))
+		break;
+	    if ((a = findNextArg(con, 1, 1)) == NULL)
+		break;
+	    s += 3;
+
+	    alen = strlen(a);
+	    tn += alen;
+	    *te = '\0';
+	    t = realloc(t, tn);
+	    te = t + strlen(t);
+	    strncpy(te, a, alen); te += alen;
+	    continue;
+	    /*@notreached@*/ break;
+	default:
+	    break;
+	}
+	*te++ = c;
+    }
+    *te = '\0';
+    t = realloc(t, strlen(t)+1);	/* XXX memory leak, hard to plug */
+    return t;
+}
+
+static void poptStripArg(poptContext con, int which)
+{
+    if(con->arg_strip == NULL) {
+	con->arg_strip = PBM_ALLOC(con->optionStack[0].argc);
+    }
+    PBM_SET(which, con->arg_strip);
+}
+
+/* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
+int poptGetNextOpt(poptContext con)
+{
+    const struct poptOption * opt = NULL;
+    int done = 0;
+
+    /* looks a bit tricky to get rid of alloca properly in this fn */
+#if HAVE_ALLOCA_H
+#define ALLOCA(x) alloca(x)
+#else
+#define ALLOCA(x) malloc(x)
+#endif
+
+
+    while (!done) {
+	const char * origOptString = NULL;
+	poptCallbackType cb = NULL;
+	const void * cbData = NULL;
+	const char * longArg = NULL;
+	int canstrip = 0;
+
+	while (!con->os->nextCharArg && con->os->next == con->os->argc
+		&& con->os > con->optionStack) {
+	    cleanOSE(con->os--);
+	}
+	if (!con->os->nextCharArg && con->os->next == con->os->argc) {
+	    invokeCallbacks(con, con->options, 1);
+	    if (con->doExec) execCommand(con);
+	    return -1;
+	}
+
+	/* Process next long option */
+	if (!con->os->nextCharArg) {
+	    char * localOptString, * optString;
+	    int thisopt;
+
+	    if (con->os->argb && PBM_ISSET(con->os->next, con->os->argb)) {
+		con->os->next++;
+		continue;
+	    }
+	    thisopt=con->os->next;
+	    origOptString = con->os->argv[con->os->next++];
+
+	    if (con->restLeftover || *origOptString != '-') {
+		con->leftovers[con->numLeftovers++] = origOptString;
+		if (con->flags & POPT_CONTEXT_POSIXMEHARDER)
+		    con->restLeftover = 1;
+		continue;
+	    }
+
+	    /* Make a copy we can hack at */
+	    localOptString = optString =
+			strcpy(ALLOCA(strlen(origOptString) + 1),
+			origOptString);
+
+	    if (!optString[0])
+		return POPT_ERROR_BADOPT;
+
+	    if (optString[1] == '-' && !optString[2]) {
+		con->restLeftover = 1;
+		continue;
+	    } else {
+		char *oe;
+		int singleDash;
+
+		optString++;
+		if (*optString == '-')
+		    singleDash = 0, optString++;
+		else
+		    singleDash = 1;
+
+		/* XXX aliases with arg substitution need "--alias=arg" */
+		if (handleAlias(con, optString, '\0', NULL))
+		    continue;
+		if (handleExec(con, optString, '\0'))
+		    continue;
+
+		/* Check for "--long=arg" option. */
+		for (oe = optString; *oe && *oe != '='; oe++)
+		    ;
+		if (*oe == '=') {
+		    *oe++ = '\0';
+		    /* XXX longArg is mapped back to persistent storage. */
+		    longArg = origOptString + (oe - localOptString);
+		}
+
+		opt = findOption(con->options, optString, '\0', &cb, &cbData,
+				 singleDash);
+		if (!opt && !singleDash)
+		    return POPT_ERROR_BADOPT;
+	    }
+
+	    if (!opt) {
+		con->os->nextCharArg = origOptString + 1;
+	    } else {
+		if(con->os == con->optionStack &&
+		   opt->argInfo & POPT_ARGFLAG_STRIP) {
+		    canstrip = 1;
+		    poptStripArg(con, thisopt);
+		}
+	    }
+	}
+
+	/* Process next short option */
+	if (con->os->nextCharArg) {
+	    origOptString = con->os->nextCharArg;
+
+	    con->os->nextCharArg = NULL;
+
+	    if (handleAlias(con, NULL, *origOptString,
+			    origOptString + 1)) {
+		origOptString++;
+		continue;
+	    }
+	    if (handleExec(con, NULL, *origOptString))
+		continue;
+
+	    opt = findOption(con->options, NULL, *origOptString, &cb,
+			     &cbData, 0);
+	    if (!opt)
+		return POPT_ERROR_BADOPT;
+
+	    origOptString++;
+	    if (*origOptString)
+		con->os->nextCharArg = origOptString;
+	}
+
+	if (opt->arg && (opt->argInfo & POPT_ARG_MASK) == POPT_ARG_NONE) {
+	    *((int *)opt->arg) = 1;
+	} else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_VAL) {
+	    if (opt->arg)
+		*((int *) opt->arg) = opt->val;
+	} else if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE) {
+	    if (con->os->nextArg) {
+		xfree(con->os->nextArg);
+		con->os->nextArg = NULL;
+	    }
+	    if (longArg) {
+		con->os->nextArg = expandNextArg(con, longArg);
+	    } else if (con->os->nextCharArg) {
+		con->os->nextArg = expandNextArg(con, con->os->nextCharArg);
+		con->os->nextCharArg = NULL;
+	    } else {
+		while (con->os->next == con->os->argc &&
+		       con->os > con->optionStack) {
+		    cleanOSE(con->os--);
+		}
+		if (con->os->next == con->os->argc)
+		    return POPT_ERROR_NOARG;
+
+		/* make sure this isn't part of a short arg or the
+                   result of an alias expansion */
+		if(con->os == con->optionStack &&
+		   opt->argInfo & POPT_ARGFLAG_STRIP &&
+		   canstrip) {
+		    poptStripArg(con, con->os->next);
+		}
+		
+		con->os->nextArg = expandNextArg(con, con->os->argv[con->os->next++]);
+	    }
+
+	    if (opt->arg) {
+		long aLong;
+		char *end;
+
+		switch (opt->argInfo & POPT_ARG_MASK) {
+		  case POPT_ARG_STRING:
+		    /* XXX memory leak, hard to plug */
+		    *((const char **) opt->arg) = xstrdup(con->os->nextArg);
+		    break;
+
+		  case POPT_ARG_INT:
+		  case POPT_ARG_LONG:
+		    aLong = strtol(con->os->nextArg, &end, 0);
+		    if (!(end && *end == '\0'))
+			return POPT_ERROR_BADNUMBER;
+
+		    if (aLong == LONG_MIN || aLong == LONG_MAX)
+			return POPT_ERROR_OVERFLOW;
+		    if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_LONG) {
+			*((long *) opt->arg) = aLong;
+		    } else {
+			if (aLong > INT_MAX || aLong < INT_MIN)
+			    return POPT_ERROR_OVERFLOW;
+			*((int *) opt->arg) = aLong;
+		    }
+		    break;
+
+		  default:
+		    fprintf(stdout, POPT_("option type (%d) not implemented in popt\n"),
+		      opt->argInfo & POPT_ARG_MASK);
+		    exit(EXIT_FAILURE);
+		}
+	    }
+	}
+
+	if (cb)
+	    cb(con, POPT_CALLBACK_REASON_OPTION, opt, con->os->nextArg, cbData);
+	else if (opt->val && ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL))
+	    done = 1;
+
+	if ((con->finalArgvCount + 2) >= (con->finalArgvAlloced)) {
+	    con->finalArgvAlloced += 10;
+	    con->finalArgv = realloc(con->finalArgv,
+			    sizeof(*con->finalArgv) * con->finalArgvAlloced);
+	}
+
+	{    char *s = malloc((opt->longName ? strlen(opt->longName) : 0) + 3);
+	    if (opt->longName)
+		sprintf(s, "--%s", opt->longName);
+	    else
+		sprintf(s, "-%c", opt->shortName);
+	    con->finalArgv[con->finalArgvCount++] = s;
+	}
+
+	if (opt->arg && (opt->argInfo & POPT_ARG_MASK) != POPT_ARG_NONE
+		     && (opt->argInfo & POPT_ARG_MASK) != POPT_ARG_VAL) {
+	    con->finalArgv[con->finalArgvCount++] = xstrdup(con->os->nextArg);
+	}
+    }
+
+    return opt->val;
+}
+
+const char * poptGetOptArg(poptContext con) {
+    const char * ret = con->os->nextArg;
+    con->os->nextArg = NULL;
+    return ret;
+}
+
+const char * poptGetArg(poptContext con) {
+    if (con->numLeftovers == con->nextLeftover) return NULL;
+    return con->leftovers[con->nextLeftover++];
+}
+
+const char * poptPeekArg(poptContext con) {
+    if (con->numLeftovers == con->nextLeftover) return NULL;
+    return con->leftovers[con->nextLeftover];
+}
+
+const char ** poptGetArgs(poptContext con) {
+    if (con->numLeftovers == con->nextLeftover) return NULL;
+
+    /* some apps like [like RPM ;-) ] need this NULL terminated */
+    con->leftovers[con->numLeftovers] = NULL;
+
+    return (con->leftovers + con->nextLeftover);
+}
+
+void poptFreeContext(poptContext con) {
+    int i;
+
+    poptResetContext(con);
+    if (con->os->argb) free(con->os->argb);
+
+    for (i = 0; i < con->numAliases; i++) {
+	if (con->aliases[i].longName) xfree(con->aliases[i].longName);
+	free(con->aliases[i].argv);
+    }
+
+    for (i = 0; i < con->numExecs; i++) {
+	if (con->execs[i].longName) xfree(con->execs[i].longName);
+	xfree(con->execs[i].script);
+    }
+    if (con->execs) xfree(con->execs);
+
+    free(con->leftovers);
+    free(con->finalArgv);
+    if (con->appName) xfree(con->appName);
+    if (con->aliases) free(con->aliases);
+    if (con->otherHelp) xfree(con->otherHelp);
+    if (con->execPath) xfree(con->execPath);
+    if (con->arg_strip) PBM_FREE(con->arg_strip);
+    
+    free(con);
+}
+
+int poptAddAlias(poptContext con, struct poptAlias newAlias,
+		/*@unused@*/ int flags)
+{
+    int aliasNum = con->numAliases++;
+    struct poptAlias * alias;
+
+    /* SunOS won't realloc(NULL, ...) */
+    if (!con->aliases)
+	con->aliases = malloc(sizeof(newAlias) * con->numAliases);
+    else
+	con->aliases = realloc(con->aliases,
+			       sizeof(newAlias) * con->numAliases);
+    alias = con->aliases + aliasNum;
+
+    alias->longName = (newAlias.longName)
+	? strcpy(malloc(strlen(newAlias.longName) + 1), newAlias.longName)
+	: NULL;
+    alias->shortName = newAlias.shortName;
+    alias->argc = newAlias.argc;
+    alias->argv = newAlias.argv;
+
+    return 0;
+}
+
+const char * poptBadOption(poptContext con, int flags) {
+    struct optionStackEntry * os;
+
+    if (flags & POPT_BADOPTION_NOALIAS)
+	os = con->optionStack;
+    else
+	os = con->os;
+
+    return os->argv[os->next - 1];
+}
+
+#define POPT_ERROR_NOARG	-10
+#define POPT_ERROR_BADOPT	-11
+#define POPT_ERROR_OPTSTOODEEP	-13
+#define POPT_ERROR_BADQUOTE	-15	/* only from poptParseArgString() */
+#define POPT_ERROR_ERRNO	-16	/* only from poptParseArgString() */
+
+const char *const poptStrerror(const int error) {
+    switch (error) {
+      case POPT_ERROR_NOARG:
+	return POPT_("missing argument");
+      case POPT_ERROR_BADOPT:
+	return POPT_("unknown option");
+      case POPT_ERROR_OPTSTOODEEP:
+	return POPT_("aliases nested too deeply");
+      case POPT_ERROR_BADQUOTE:
+	return POPT_("error in paramter quoting");
+      case POPT_ERROR_BADNUMBER:
+	return POPT_("invalid numeric value");
+      case POPT_ERROR_OVERFLOW:
+	return POPT_("number too large or too small");
+      case POPT_ERROR_ERRNO:
+	return strerror(errno);
+      default:
+	return POPT_("unknown error");
+    }
+}
+
+int poptStuffArgs(poptContext con, const char ** argv) {
+    int argc;
+
+    if ((con->os - con->optionStack) == POPT_OPTION_DEPTH)
+	return POPT_ERROR_OPTSTOODEEP;
+
+    for (argc = 0; argv[argc]; argc++)
+	;
+
+    con->os++;
+    con->os->next = 0;
+    con->os->nextArg = NULL;
+    con->os->nextCharArg = NULL;
+    con->os->currAlias = NULL;
+    poptDupArgv(argc, argv, &con->os->argc, &con->os->argv);
+    con->os->argb = NULL;
+    con->os->stuffed = 1;
+
+    return 0;
+}
+
+const char * poptGetInvocationName(poptContext con) {
+    return con->os->argv[0];
+}
+
+int poptStrippedArgv(poptContext con, int argc, char **argv)
+{
+    int i,j=1, numargs=argc;
+    
+    for(i=1; i<argc; i++) {
+	if(PBM_ISSET(i, con->arg_strip)) {
+	    numargs--;
+	}
+    }
+    
+    for(i=1; i<argc; i++) {
+	if(PBM_ISSET(i, con->arg_strip)) {
+	    continue;
+	} else {
+	    if(j<numargs) {
+		argv[j++]=argv[i];
+	    } else {
+		argv[j++]='\0';
+	    }
+	}
+    }
+    
+    return(numargs);
+}
--- a/popt/popt.h
+++ b/popt/popt.h
@@ -0,0 +1,130 @@
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from 
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#ifndef H_POPT
+#define H_POPT
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>			/* for FILE * */
+
+#define POPT_OPTION_DEPTH	10
+
+#define POPT_ARG_NONE		0
+#define POPT_ARG_STRING		1
+#define POPT_ARG_INT		2
+#define POPT_ARG_LONG		3
+#define POPT_ARG_INCLUDE_TABLE	4	/* arg points to table */
+#define POPT_ARG_CALLBACK	5	/* table-wide callback... must be
+					   set first in table; arg points 
+					   to callback, descrip points to 
+					   callback data to pass */
+#define POPT_ARG_INTL_DOMAIN    6       /* set the translation domain
+					   for this table and any
+					   included tables; arg points
+					   to the domain string */
+#define POPT_ARG_VAL		7	/* arg should take value val */
+#define POPT_ARG_MASK		0x0000FFFF
+#define POPT_ARGFLAG_ONEDASH	0x80000000  /* allow -longoption */
+#define POPT_ARGFLAG_DOC_HIDDEN 0x40000000  /* don't show in help/usage */
+#define POPT_ARGFLAG_STRIP	0x20000000  /* strip this arg from argv (only applies to long args) */
+#define POPT_CBFLAG_PRE		0x80000000  /* call the callback before parse */
+#define POPT_CBFLAG_POST	0x40000000  /* call the callback after parse */
+#define POPT_CBFLAG_INC_DATA	0x20000000  /* use data from the include line,
+					       not the subtable */
+
+#define POPT_ERROR_NOARG	-10
+#define POPT_ERROR_BADOPT	-11
+#define POPT_ERROR_OPTSTOODEEP	-13
+#define POPT_ERROR_BADQUOTE	-15	/* only from poptParseArgString() */
+#define POPT_ERROR_ERRNO	-16	/* only from poptParseArgString() */
+#define POPT_ERROR_BADNUMBER	-17
+#define POPT_ERROR_OVERFLOW	-18
+
+/* poptBadOption() flags */
+#define POPT_BADOPTION_NOALIAS  (1 << 0)  /* don't go into an alias */
+
+/* poptGetContext() flags */
+#define POPT_CONTEXT_NO_EXEC	(1 << 0)  /* ignore exec expansions */
+#define POPT_CONTEXT_KEEP_FIRST	(1 << 1)  /* pay attention to argv[0] */
+#define POPT_CONTEXT_POSIXMEHARDER (1 << 2) /* options can't follow args */
+
+struct poptOption {
+    /*@observer@*/ /*@null@*/ const char * longName;	/* may be NULL */
+    char shortName;		/* may be '\0' */
+    int argInfo;
+    /*@shared@*/ /*@null@*/ void * arg;		/* depends on argInfo */
+    int val;			/* 0 means don't return, just update flag */
+    /*@shared@*/ /*@null@*/ const char * descrip;	/* description for autohelp -- may be NULL */
+    /*@shared@*/ /*@null@*/ const char * argDescrip;	/* argument description for autohelp */
+};
+
+struct poptAlias {
+    /*@owned@*/ /*@null@*/ const char * longName;	/* may be NULL */
+    char shortName;		/* may be '\0' */
+    int argc;
+    /*@owned@*/ const char ** argv;		/* must be free()able */
+};
+
+extern struct poptOption poptHelpOptions[];
+#define POPT_AUTOHELP { NULL, '\0', POPT_ARG_INCLUDE_TABLE, poptHelpOptions, \
+			0, "Help options", NULL },
+
+typedef struct poptContext_s * poptContext;
+#ifndef __cplusplus
+typedef struct poptOption * poptOption;
+#endif
+
+enum poptCallbackReason { POPT_CALLBACK_REASON_PRE, 
+			  POPT_CALLBACK_REASON_POST,
+			  POPT_CALLBACK_REASON_OPTION };
+typedef void (*poptCallbackType)(poptContext con, 
+				 enum poptCallbackReason reason,
+			         const struct poptOption * opt,
+				 const char * arg, const void * data);
+
+/*@only@*/ poptContext poptGetContext(/*@keep@*/ const char * name,
+		int argc, /*@keep@*/ const char ** argv,
+		/*@keep@*/ const struct poptOption * options, int flags);
+void poptResetContext(poptContext con);
+
+/* returns 'val' element, -1 on last item, POPT_ERROR_* on error */
+int poptGetNextOpt(poptContext con);
+/* returns NULL if no argument is available */
+/*@observer@*/ /*@null@*/ const char * poptGetOptArg(poptContext con);
+/* returns NULL if no more options are available */
+/*@observer@*/ /*@null@*/ const char * poptGetArg(poptContext con);
+/*@observer@*/ /*@null@*/ const char * poptPeekArg(poptContext con);
+/*@observer@*/ /*@null@*/ const char ** poptGetArgs(poptContext con);
+/* returns the option which caused the most recent error */
+/*@observer@*/ const char * poptBadOption(poptContext con, int flags);
+void poptFreeContext( /*@only@*/ poptContext con);
+int poptStuffArgs(poptContext con, /*@keep@*/ const char ** argv);
+int poptAddAlias(poptContext con, struct poptAlias alias, int flags);
+int poptReadConfigFile(poptContext con, const char * fn);
+/* like above, but reads /etc/popt and $HOME/.popt along with environment 
+   vars */
+int poptReadDefaultConfig(poptContext con, int useEnv);
+/* argv should be freed -- this allows ', ", and \ quoting, but ' is treated
+   the same as " and both may include \ quotes */
+int poptDupArgv(int argc, const char **argv,
+		/*@out@*/ int * argcPtr, /*@out@*/ const char *** argvPtr);
+int poptParseArgvString(const char * s,
+		/*@out@*/ int * argcPtr, /*@out@*/ const char *** argvPtr);
+/*@observer@*/ const char *const poptStrerror(const int error);
+void poptSetExecPath(poptContext con, const char * path, int allowAbsolute);
+void poptPrintHelp(poptContext con, FILE * f, int flags);
+void poptPrintUsage(poptContext con, FILE * f, int flags);
+void poptSetOtherOptionHelp(poptContext con, const char * text);
+/*@observer@*/ const char * poptGetInvocationName(poptContext con);
+/* shuffles argv pointers to remove stripped args, returns new argc */
+int poptStrippedArgv(poptContext con, int argc, char **argv);
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif
--- a/popt/poptconfig.c
+++ b/popt/poptconfig.c
@@ -0,0 +1,142 @@
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from 
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#include "system.h"
+#include "poptint.h"
+
+static void configLine(poptContext con, char * line) {
+    int nameLength = strlen(con->appName);
+    char * opt;
+    struct poptAlias alias;
+    char * entryType;
+    char * longName = NULL;
+    char shortName = '\0';
+    
+    if (strncmp(line, con->appName, nameLength)) return;
+    line += nameLength;
+    if (!*line || !isspace(*line)) return;
+    while (*line && isspace(*line)) line++;
+    entryType = line;
+
+    while (!*line || !isspace(*line)) line++;
+    *line++ = '\0';
+    while (*line && isspace(*line)) line++;
+    if (!*line) return;
+    opt = line;
+
+    while (!*line || !isspace(*line)) line++;
+    *line++ = '\0';
+    while (*line && isspace(*line)) line++;
+    if (!*line) return;
+
+    if (opt[0] == '-' && opt[1] == '-')
+	longName = opt + 2;
+    else if (opt[0] == '-' && !opt[2])
+	shortName = opt[1];
+
+    if (!strcmp(entryType, "alias")) {
+	if (poptParseArgvString(line, &alias.argc, &alias.argv)) return;
+	alias.longName = longName, alias.shortName = shortName;
+	poptAddAlias(con, alias, 0);
+    } else if (!strcmp(entryType, "exec")) {
+	con->execs = realloc(con->execs,
+				sizeof(*con->execs) * (con->numExecs + 1));
+	if (longName)
+	    con->execs[con->numExecs].longName = xstrdup(longName);
+	else
+	    con->execs[con->numExecs].longName = NULL;
+
+	con->execs[con->numExecs].shortName = shortName;
+	con->execs[con->numExecs].script = xstrdup(line);
+	
+	con->numExecs++;
+    }
+}
+
+int poptReadConfigFile(poptContext con, const char * fn) {
+    char * file=NULL, * chptr, * end;
+    char * buf=NULL, * dst;
+    int fd, rc;
+    int fileLength;
+
+    fd = open(fn, O_RDONLY);
+    if (fd < 0) {
+	if (errno == ENOENT)
+	    return 0;
+	else 
+	    return POPT_ERROR_ERRNO;
+    }
+
+    fileLength = lseek(fd, 0, SEEK_END);
+    (void) lseek(fd, 0, 0);
+
+    file = malloc(fileLength + 1);
+    if (read(fd, file, fileLength) != fileLength) {
+	rc = errno;
+	close(fd);
+	errno = rc;
+	if (file) free(file);
+	return POPT_ERROR_ERRNO;
+    }
+    close(fd);
+
+    dst = buf = malloc(fileLength + 1);
+
+    chptr = file;
+    end = (file + fileLength);
+    while (chptr < end) {
+	switch (*chptr) {
+	  case '\n':
+	    *dst = '\0';
+	    dst = buf;
+	    while (*dst && isspace(*dst)) dst++;
+	    if (*dst && *dst != '#') {
+		configLine(con, dst);
+	    }
+	    chptr++;
+	    break;
+	  case '\\':
+	    *dst++ = *chptr++;
+	    if (chptr < end) {
+		if (*chptr == '\n') 
+		    dst--, chptr++;	
+		    /* \ at the end of a line does not insert a \n */
+		else
+		    *dst++ = *chptr++;
+	    }
+	    break;
+	  default:
+	    *dst++ = *chptr++;
+	    break;
+	}
+    }
+
+    free(file);
+    free(buf);
+
+    return 0;
+}
+
+int poptReadDefaultConfig(poptContext con, /*@unused@*/ int useEnv) {
+    char * fn, * home;
+    int rc;
+
+    if (!con->appName) return 0;
+
+    rc = poptReadConfigFile(con, "/etc/popt");
+    if (rc) return rc;
+    if (getuid() != geteuid()) return 0;
+
+    if ((home = getenv("HOME"))) {
+	fn = malloc(strlen(home) + 20);
+	strcpy(fn, home);
+	strcat(fn, "/.popt");
+	rc = poptReadConfigFile(con, fn);
+	free(fn);
+	if (rc) return rc;
+    }
+
+    return 0;
+}
+
--- a/popt/popthelp.c
+++ b/popt/popthelp.c
@@ -0,0 +1,301 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from 
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#include "system.h"
+#include "poptint.h"
+
+static void displayArgs(poptContext con,
+		/*@unused@*/ enum poptCallbackReason foo,
+		struct poptOption * key, 
+		/*@unused@*/ const char * arg, /*@unused@*/ void * data) {
+    if (key->shortName== '?')
+	poptPrintHelp(con, stdout, 0);
+    else
+	poptPrintUsage(con, stdout, 0);
+    exit(0);
+}
+
+struct poptOption poptHelpOptions[] = {
+    { NULL, '\0', POPT_ARG_CALLBACK, (void *)&displayArgs, '\0', NULL, NULL },
+    { "help", '?', 0, NULL, '?', N_("Show this help message"), NULL },
+    { "usage", '\0', 0, NULL, 'u', N_("Display brief usage message"), NULL },
+    { NULL, '\0', 0, NULL, 0, NULL, NULL }
+} ;
+
+
+/*@observer@*/ /*@null@*/ static const char *const
+getTableTranslationDomain(const struct poptOption *table)
+{
+  const struct poptOption *opt;
+
+  for(opt = table;
+      opt->longName || opt->shortName || opt->arg;
+      opt++) {
+    if(opt->argInfo == POPT_ARG_INTL_DOMAIN)
+      return opt->arg;
+  }
+
+  return NULL;
+}
+
+/*@observer@*/ /*@null@*/ static const char *const
+getArgDescrip(const struct poptOption * opt, const char *translation_domain)
+{
+    if (!(opt->argInfo & POPT_ARG_MASK)) return NULL;
+
+    if (opt == (poptHelpOptions + 1) || opt == (poptHelpOptions + 2))
+	if (opt->argDescrip) return POPT_(opt->argDescrip);
+
+    if (opt->argDescrip) return D_(translation_domain, opt->argDescrip);
+    return POPT_("ARG");
+}
+
+static void singleOptionHelp(FILE * f, int maxLeftCol, 
+			     const struct poptOption * opt,
+			     const char *translation_domain) {
+    int indentLength = maxLeftCol + 5;
+    int lineLength = 79 - indentLength;
+    const char * help = D_(translation_domain, opt->descrip);
+    int helpLength;
+    const char * ch;
+    char format[10];
+    char * left;
+    const char * argDescrip = getArgDescrip(opt, translation_domain);
+
+    left = malloc(maxLeftCol + 1);
+    *left = '\0';
+
+    if (opt->longName && opt->shortName)
+	sprintf(left, "-%c, --%s", opt->shortName, opt->longName);
+    else if (opt->shortName) 
+	sprintf(left, "-%c", opt->shortName);
+    else if (opt->longName)
+	sprintf(left, "--%s", opt->longName);
+    if (!*left) return ;
+    if (argDescrip) {
+	strcat(left, "=");
+	strcat(left, argDescrip);
+    }
+
+    if (help)
+	fprintf(f,"  %-*s   ", maxLeftCol, left);
+    else {
+	fprintf(f,"  %s\n", left); 
+	goto out;
+    }
+
+    helpLength = strlen(help);
+    while (helpLength > lineLength) {
+	ch = help + lineLength - 1;
+	while (ch > help && !isspace(*ch)) ch--;
+	if (ch == help) break;		/* give up */
+	while (ch > (help + 1) && isspace(*ch)) ch--;
+	ch++;
+
+	sprintf(format, "%%.%ds\n%%%ds", (int) (ch - help), indentLength);
+	fprintf(f, format, help, " ");
+	help = ch;
+	while (isspace(*help) && *help) help++;
+	helpLength = strlen(help);
+    }
+
+    if (helpLength) fprintf(f, "%s\n", help);
+
+out:
+    free(left);
+}
+
+static int maxArgWidth(const struct poptOption * opt,
+		       const char * translation_domain) {
+    int max = 0;
+    int this;
+    const char * s;
+    
+    while (opt->longName || opt->shortName || opt->arg) {
+	if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
+	    this = maxArgWidth(opt->arg, translation_domain);
+	    if (this > max) max = this;
+	} else if (!(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) {
+	    this = opt->shortName ? 2 : 0;
+	    if (opt->longName) {
+		if (this) this += 2;
+		this += strlen(opt->longName) + 2;
+	    }
+
+	    s = getArgDescrip(opt, translation_domain);
+	    if (s)
+		this += strlen(s) + 1;
+	    if (this > max) max = this;
+	}
+
+	opt++;
+    }
+    
+    return max;
+}
+
+static void singleTableHelp(FILE * f, const struct poptOption * table, 
+			    int left,
+			    const char *translation_domain) {
+    const struct poptOption * opt;
+    const char *sub_transdom;
+
+    opt = table;
+    while (opt->longName || opt->shortName || opt->arg) {
+	if ((opt->longName || opt->shortName) && 
+	    !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN))
+	    singleOptionHelp(f, left, opt, translation_domain);
+	opt++;
+    }
+
+    opt = table;
+    while (opt->longName || opt->shortName || opt->arg) {
+	if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
+	    sub_transdom = getTableTranslationDomain(opt->arg);
+	    if(!sub_transdom)
+		sub_transdom = translation_domain;
+	    
+	    if (opt->descrip)
+		fprintf(f, "\n%s\n", D_(sub_transdom, opt->descrip));
+
+	    singleTableHelp(f, opt->arg, left, sub_transdom);
+	}
+	opt++;
+    }
+}
+
+static int showHelpIntro(poptContext con, FILE * f) {
+    int len = 6;
+    const char * fn;
+
+    fprintf(f, POPT_("Usage:"));
+    if (!(con->flags & POPT_CONTEXT_KEEP_FIRST)) {
+	fn = con->optionStack->argv[0];
+	if (strchr(fn, '/')) fn = strchr(fn, '/') + 1;
+	fprintf(f, " %s", fn);
+	len += strlen(fn) + 1;
+    }
+
+    return len;
+}
+
+void poptPrintHelp(poptContext con, FILE * f, /*@unused@*/ int flags) {
+    int leftColWidth;
+
+    showHelpIntro(con, f);
+    if (con->otherHelp)
+	fprintf(f, " %s\n", con->otherHelp);
+    else
+	fprintf(f, " %s\n", POPT_("[OPTION...]"));
+
+    leftColWidth = maxArgWidth(con->options, NULL);
+    singleTableHelp(f, con->options, leftColWidth, NULL);
+}
+
+static int singleOptionUsage(FILE * f, int cursor, 
+			     const struct poptOption * opt,
+			     const char *translation_domain) {
+    int len = 3;
+    char shortStr[2] = { '\0', '\0' };
+    const char * item = shortStr;
+    const char * argDescrip = getArgDescrip(opt, translation_domain);
+
+    if (opt->shortName) {
+	if (!(opt->argInfo & POPT_ARG_MASK)) 
+	    return cursor;	/* we did these already */
+	len++;
+	*shortStr = opt->shortName;
+	shortStr[1] = '\0';
+    } else if (opt->longName) {
+	len += 1 + strlen(opt->longName);
+	item = opt->longName;
+    }
+
+    if (len == 3) return cursor;
+
+    if (argDescrip) 
+	len += strlen(argDescrip) + 1;
+
+    if ((cursor + len) > 79) {
+	fprintf(f, "\n       ");
+	cursor = 7;
+    } 
+
+    fprintf(f, " [-%s%s%s%s]", opt->shortName ? "" : "-", item,
+	    argDescrip ? (opt->shortName ? " " : "=") : "",
+	    argDescrip ? argDescrip : "");
+
+    return cursor + len + 1;
+}
+
+static int singleTableUsage(FILE * f, int cursor, const struct poptOption * table,
+		     const char *translation_domain) {
+    const struct poptOption * opt;
+    
+    opt = table;
+    while (opt->longName || opt->shortName || opt->arg) {
+        if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INTL_DOMAIN)
+	    translation_domain = (const char *)opt->arg;
+	else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) 
+	    cursor = singleTableUsage(f, cursor, opt->arg,
+				      translation_domain);
+	else if ((opt->longName || opt->shortName) && 
+		 !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN))
+	  cursor = singleOptionUsage(f, cursor, opt, translation_domain);
+
+	opt++;
+    }
+
+    return cursor;
+}
+
+static int showShortOptions(const struct poptOption * opt, FILE * f, 
+			    char * str) {
+    char s[300];		/* this is larger then the ascii set, so
+				   it should do just fine */
+
+    s[0] = '\0';
+    if (str == NULL) {
+	memset(s, 0, sizeof(s));
+	str = s;
+    }
+
+    while (opt->longName || opt->shortName || opt->arg) {
+	if (opt->shortName && !(opt->argInfo & POPT_ARG_MASK))
+	    str[strlen(str)] = opt->shortName;
+	else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE)
+	    showShortOptions(opt->arg, f, str);
+
+	opt++;
+    } 
+
+    if (s != str || !*s)
+	return 0;
+
+    fprintf(f, " [-%s]", s);
+    return strlen(s) + 4;
+}
+
+void poptPrintUsage(poptContext con, FILE * f, /*@unused@*/ int flags) {
+    int cursor;
+
+    cursor = showHelpIntro(con, f);
+    cursor += showShortOptions(con->options, f, NULL);
+    singleTableUsage(f, cursor, con->options, NULL);
+
+    if (con->otherHelp) {
+	cursor += strlen(con->otherHelp) + 1;
+	if (cursor > 79) fprintf(f, "\n       ");
+	fprintf(f, " %s", con->otherHelp);
+    }
+
+    fprintf(f, "\n");
+}
+
+void poptSetOtherOptionHelp(poptContext con, const char * text) {
+    if (con->otherHelp) xfree(con->otherHelp);
+    con->otherHelp = xstrdup(text);
+}
--- a/popt/poptint.h
+++ b/popt/poptint.h
@@ -0,0 +1,87 @@
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from 
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#ifndef H_POPTINT
+#define H_POPTINT
+
+/* Bit mask macros. */
+typedef	unsigned int __pbm_bits;
+#define	__PBM_NBITS		(8 * sizeof (__pbm_bits))
+#define	__PBM_IX(d)		((d) / __PBM_NBITS)
+#define __PBM_MASK(d)		((__pbm_bits) 1 << ((d) % __PBM_NBITS))
+typedef struct {
+    __pbm_bits bits[1];
+} pbm_set;
+#define	__PBM_BITS(set)	((set)->bits)
+
+#define	PBM_ALLOC(d)	calloc(__PBM_IX (d) + 1, sizeof(__pbm_bits))
+#define	PBM_FREE(s)	free(s);
+#define PBM_SET(d, s)   (__PBM_BITS (s)[__PBM_IX (d)] |= __PBM_MASK (d))
+#define PBM_CLR(d, s)   (__PBM_BITS (s)[__PBM_IX (d)] &= ~__PBM_MASK (d))
+#define PBM_ISSET(d, s) ((__PBM_BITS (s)[__PBM_IX (d)] & __PBM_MASK (d)) != 0)
+
+struct optionStackEntry {
+    int argc;
+    /*@only@*/ const char ** argv;
+    /*@only@*/ pbm_set * argb;
+    int next;
+    /*@only@*/ const char * nextArg;
+    /*@keep@*/ const char * nextCharArg;
+    /*@dependent@*/ struct poptAlias * currAlias;
+    int stuffed;
+};
+
+struct execEntry {
+    const char * longName;
+    char shortName;
+    const char * script;
+};
+
+struct poptContext_s {
+    struct optionStackEntry optionStack[POPT_OPTION_DEPTH];
+    /*@dependent@*/ struct optionStackEntry * os;
+    /*@owned@*/ const char ** leftovers;
+    int numLeftovers;
+    int nextLeftover;
+    /*@keep@*/ const struct poptOption * options;
+    int restLeftover;
+    /*@only@*/ const char * appName;
+    /*@only@*/ struct poptAlias * aliases;
+    int numAliases;
+    int flags;
+    struct execEntry * execs;
+    int numExecs;
+    /*@only@*/ const char ** finalArgv;
+    int finalArgvCount;
+    int finalArgvAlloced;
+    /*@dependent@*/ struct execEntry * doExec;
+    /*@only@*/ const char * execPath;
+    int execAbsolute;
+    /*@only@*/ const char * otherHelp;
+    pbm_set * arg_strip;
+};
+
+#define	xfree(_a)	free((void *)_a)
+
+#ifdef HAVE_LIBINTL_H
+#include <libintl.h>
+#endif
+
+#if defined(HAVE_GETTEXT) && !defined(__LCLINT__)
+#define _(foo) gettext(foo)
+#else
+#define _(foo) (foo)
+#endif
+
+#if defined(HAVE_DGETTEXT) && !defined(__LCLINT__)
+#define D_(dom, str) dgettext(dom, str)
+#define POPT_(foo) D_("popt", foo)
+#else
+#define POPT_(foo) (foo)
+#define D_(dom, str) (str)
+#endif
+
+#define N_(foo) (foo)
+
+#endif
--- a/popt/poptparse.c
+++ b/popt/poptparse.c
@@ -0,0 +1,102 @@
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from 
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#include "system.h"
+
+#define POPT_ARGV_ARRAY_GROW_DELTA 5
+
+int poptDupArgv(int argc, const char **argv,
+		int * argcPtr, const char *** argvPtr)
+{
+    size_t nb = (argc + 1) * sizeof(*argv);
+    const char ** argv2;
+    char * dst;
+    int i;
+
+    for (i = 0; i < argc; i++) {
+	if (argv[i] == NULL)
+	    return POPT_ERROR_NOARG;
+	nb += strlen(argv[i]) + 1;
+    }
+	
+    dst = malloc(nb);
+    argv2 = (void *) dst;
+    dst += (argc + 1) * sizeof(*argv);
+
+    for (i = 0; i < argc; i++) {
+	argv2[i] = dst;
+	dst += strlen(strcpy(dst, argv[i])) + 1;
+    }
+    argv2[argc] = NULL;
+
+    *argvPtr = argv2;
+    *argcPtr = argc;
+    return 0;
+}
+
+int poptParseArgvString(const char * s, int * argcPtr, const char *** argvPtr)
+{
+    const char * src;
+    char quote = '\0';
+    int argvAlloced = POPT_ARGV_ARRAY_GROW_DELTA;
+    const char ** argv = malloc(sizeof(*argv) * argvAlloced);
+    int argc = 0;
+    int buflen = strlen(s) + 1;
+    char *buf0 = calloc(buflen, 1);
+    char *buf = buf0;
+
+    argv[argc] = buf;
+
+    for (src = s; *src; src++) {
+	if (quote == *src) {
+	    quote = '\0';
+	} else if (quote) {
+	    if (*src == '\\') {
+		src++;
+		if (!*src) {
+		    free(argv);
+		    free(buf0);
+		    return POPT_ERROR_BADQUOTE;
+		}
+		if (*src != quote) *buf++ = '\\';
+	    }
+	    *buf++ = *src;
+	} else if (isspace(*src)) {
+	    if (*argv[argc]) {
+		buf++, argc++;
+		if (argc == argvAlloced) {
+		    argvAlloced += POPT_ARGV_ARRAY_GROW_DELTA;
+		    argv = realloc(argv, sizeof(*argv) * argvAlloced);
+		}
+		argv[argc] = buf;
+	    }
+	} else switch (*src) {
+	  case '"':
+	  case '\'':
+	    quote = *src;
+	    break;
+	  case '\\':
+	    src++;
+	    if (!*src) {
+		free(argv);
+		free(buf0);
+		return POPT_ERROR_BADQUOTE;
+	    }
+	    /*@fallthrough@*/
+	  default:
+	    *buf++ = *src;
+	    break;
+	}
+    }
+
+    if (strlen(argv[argc])) {
+	argc++, buf++;
+    }
+
+    (void) poptDupArgv(argc, argv, argcPtr, argvPtr);
+
+    free(argv);
+    free(buf0);
+    return 0;
+}
--- a/popt/system.h
+++ b/popt/system.h
@@ -0,0 +1,55 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+
+#if HAVE_MCHECK_H 
+#include <mcheck.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef __NeXT
+/* access macros are not declared in non posix mode in unistd.h -
+ don't try to use posix on NeXTstep 3.3 ! */
+#include <libc.h>
+#endif
+
+/* AIX requires this to be the first thing in the file.  */ 
+#ifndef __GNUC__
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+#pragma alloca
+#  else
+#   ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+#   endif
+#  endif
+# endif
+#elif defined(__GNUC__) && defined(__STRICT_ANSI__)
+#define alloca __builtin_alloca
+#endif
+
+/*@only@*/ char * xstrdup (const char *str);
+
+#if HAVE_MCHECK_H && defined(__GNUC__)
+#define	vmefail()	(fprintf(stderr, "virtual memory exhausted.\n"), exit(EXIT_FAILURE), NULL)
+#define xstrdup(_str)   (strcpy((malloc(strlen(_str)+1) ? : vmefail()), (_str)))
+#else
+#define	xstrdup(_str)	strdup(_str)
+#endif  /* HAVE_MCHECK_H && defined(__GNUC__) */
+
+
+#include "popt.h"
--- a/receiver.c
+++ b/receiver.c
@@ -36,12 +36,14 @@ extern char *compare_dest;
 extern int make_backups;
 extern char *backup_suffix;

+
 static struct delete_list {
 	dev_t dev;
 	INO_T inode;
 } *delete_list;
 static int dlist_len, dlist_alloc_len;

+
 /* yuck! This function wouldn't have been necessary if I had the sorting
   algorithm right. Unfortunately fixing the sorting algorithm would introduce
   a backward incompatibility as file list indexes are sent over the link.
@@ -102,14 +104,12 @@ static void delete_one(struct file_struct *f)
 /* this deletes any files on the receiving side that are not present
   on the sending side. For version 1.6.4 I have changed the behaviour
   to match more closely what most people seem to expect of this option */
-void delete_files(struct file_list *flist)
+static void delete_files(struct file_list *flist)
 {
 	struct file_list *local_file_list;
 	int i, j;
 	char *name;
 	extern int module_id;
-	extern int max_delete;
-	static int deletion_count;

 	if (cvs_exclude)
 		add_cvs_excludes();
@@ -137,7 +137,6 @@ void delete_files(struct file_list *flist)
 			rprintf(FINFO,"deleting in %s\n", name);

 		for (i=local_file_list->count-1;i>=0;i--) {
-			if (max_delete && deletion_count > max_delete) break;
 			if (!local_file_list->files[i]->basename) continue;
 			if (remote_version < 19 &&
 			    S_ISDIR(local_file_list->files[i]->mode))
@@ -145,12 +144,10 @@ void delete_files(struct file_list *flist)
 			if (-1 == flist_find(flist,local_file_list->files[i])) {
 				char *f = f_name(local_file_list->files[i]);
 				int k = strlen(f) - strlen(backup_suffix);
-/* Hi Andrew, do we really need to play with backup_suffix here? */
 				if (make_backups && ((k <= 0) ||
 					    (strcmp(f+k,backup_suffix) != 0))) {
 					(void) make_backup(f);
 				} else {
-					deletion_count++;
 					delete_one(local_file_list->files[i]);
 				}
 			}
@@ -203,7 +200,8 @@ static int get_tmpname(char *fnametmp, char *fname)
 static int receive_data(int f_in,struct map_struct *buf,int fd,char *fname,
 			OFF_T total_size)
 {
-	int i,n,remainder,len,count;
+	int i;
+	unsigned int n,remainder,len,count;
 	OFF_T offset = 0;
 	OFF_T offset2;
 	char *data;
@@ -225,8 +223,8 @@ static int receive_data(int f_in,struct map_struct *buf,int fd,char *fname,
 			extern int cleanup_got_literal;

 			if (verbose > 3) {
-				rprintf(FINFO,"data recv %d at %.0f\n",
-					i,(double)offset);
+				rprintf(FINFO,"data recv %d at %d\n",
+					i,(int)offset);
 			}

 			stats.literal_data += i;
@@ -243,7 +241,7 @@ static int receive_data(int f_in,struct map_struct *buf,int fd,char *fname,
 		} 

 		i = -(i+1);
-		offset2 = i*(OFF_T)n;
+		offset2 = i*n;
 		len = n;
 		if (i == count-1 && remainder != 0)
 			len = remainder;
@@ -251,15 +249,13 @@ static int receive_data(int f_in,struct map_struct *buf,int fd,char *fname,
 		stats.matched_data += len;
 		
 		if (verbose > 3)
-			rprintf(FINFO,"chunk[%d] of size %d at %.0f offset=%.0f\n",
-				i,len,(double)offset2,(double)offset);
+			rprintf(FINFO,"chunk[%d] of size %d at %d offset=%d\n",
+				i,len,(int)offset2,(int)offset);
 		
-		if (buf) {
-			map = map_ptr(buf,offset2,len);
+		map = map_ptr(buf,offset2,len);
 		
-			see_token(map, len);
-			sum_update(map,len);
-		}
+		see_token(map, len);
+		sum_update(map,len);
 		
 		if (fd != -1 && write_file(fd,map,len) != len) {
 			rprintf(FERROR,"write failed on %s : %s\n",
@@ -269,7 +265,7 @@ static int receive_data(int f_in,struct map_struct *buf,int fd,char *fname,
 		offset += len;
 	}

-	end_progress(total_size);
+	end_progress();

 	if (fd != -1 && offset > 0 && sparse_end(fd) != 0) {
 		rprintf(FERROR,"write failed on %s : %s\n",
@@ -293,8 +289,6 @@ static int receive_data(int f_in,struct map_struct *buf,int fd,char *fname,
 }


-/* main routine for receiver process. Receiver process runs on the
-	same host as the generator process. */

 int recv_files(int f_in,struct file_list *flist,char *local_name,int f_gen)
 {  
@@ -318,6 +312,12 @@ int recv_files(int f_in,struct file_list *flist,char *local_name,int f_gen)
 		rprintf(FINFO,"recv_files(%d) starting\n",flist->count);
 	}

+	if (!delete_after) {
+		if (recurse && delete_mode && !local_name && flist->count>0) {
+			delete_files(flist);
+		}
+	}
+
 	while (1) {      
 		cleanup_disable();

@@ -398,7 +398,7 @@ int recv_files(int f_in,struct file_list *flist,char *local_name,int f_gen)
 		if (fd1 != -1 && st.st_size > 0) {
 			buf = map_file(fd1,st.st_size);
 			if (verbose > 2)
-				rprintf(FINFO,"recv mapped %s of size %.0f\n",fnamecmp,(double)st.st_size);
+				rprintf(FINFO,"recv mapped %s of size %d\n",fnamecmp,(int)st.st_size);
 		} else {
 			buf = NULL;
 		}
@@ -469,7 +469,7 @@ int recv_files(int f_in,struct file_list *flist,char *local_name,int f_gen)
 		finish_transfer(fname, fnametmp, file);

 		cleanup_disable();
-
+				
 		if (!recv_ok) {
 			if (csum_length == SUM_LENGTH) {
 				rprintf(FERROR,"ERROR: file corruption in %s. File changed during transfer?\n",
--- a/rsync.c
+++ b/rsync.c
@@ -43,7 +43,7 @@ void free_sums(struct sum_struct *s)


 /*
- * delete a file or directory. If force_delet is set then delete 
+ * delete a file or directory. If force_delete is set then delete 
 * recursively 
 */
 int delete_file(char *fname)
@@ -62,27 +62,26 @@ int delete_file(char *fname)
 	ret = do_stat(fname, &st);
 #endif
 	if (ret) {
-		rprintf(FERROR,"stat(%s) : %s\n", fname, strerror(errno));
 		return -1;
 	}

 	if (!S_ISDIR(st.st_mode)) {
 		if (robust_unlink(fname) == 0 || errno == ENOENT) return 0;
-		rprintf(FERROR,"unlink(%s) : %s\n", fname, strerror(errno));
+		rprintf(FERROR,"delete_file: unlink(%s) : %s\n", fname, strerror(errno));
 		return -1;
 	}

 	if (do_rmdir(fname) == 0 || errno == ENOENT) return 0;
 	if (!force_delete || !recurse || 
 	    (errno != ENOTEMPTY && errno != EEXIST)) {
-		rprintf(FERROR,"rmdir(%s) : %s\n", fname, strerror(errno));
+		rprintf(FERROR,"delete_file: rmdir(%s) : %s\n", fname, strerror(errno));
 		return -1;
 	}

 	/* now we do a recsursive delete on the directory ... */
 	d = opendir(fname);
 	if (!d) {
-		rprintf(FERROR,"opendir(%s): %s\n",
+		rprintf(FERROR,"delete_file: opendir(%s): %s\n",
 			fname,strerror(errno));
 		return -1;
 	}
@@ -92,7 +91,7 @@ int delete_file(char *fname)
 		if (strcmp(dname,".")==0 ||
 		    strcmp(dname,"..")==0)
 			continue;
-		slprintf(buf, sizeof(buf), "%s/%s", fname, dname);
+		snprintf(buf, sizeof(buf), "%s/%s", fname, dname);
 		if (verbose > 0)
 			rprintf(FINFO,"deleting %s\n", buf);
 		if (delete_file(buf) != 0) {
@@ -104,7 +103,7 @@ int delete_file(char *fname)
 	closedir(d);
 	
 	if (do_rmdir(fname) != 0) {
-		rprintf(FERROR,"rmdir(%s) : %s\n", fname, strerror(errno));
+		rprintf(FERROR,"delete_file: rmdir(%s) : %s\n", fname, strerror(errno));
 		return -1;
 	}

@@ -163,7 +162,7 @@ int set_perms(char *fname,struct file_struct *file,STRUCT_STAT *st,
 	}

 	if (preserve_times && !S_ISLNK(st->st_mode) &&
-	    st->st_mtime != file->modtime) {
+	    cmp_modtime(st->st_mtime, file->modtime) != 0) {
 		/* don't complain about not setting times on directories
 		   because some filesystems can't do it */
 		if (set_modtime(fname,file->modtime) != 0 &&
--- a/rsync.h
+++ b/rsync.h
@@ -47,8 +47,8 @@
 #define SAME_TIME (1<<7)

 /* update this if you make incompatible changes */
-#define PROTOCOL_VERSION 24
-#define MIN_PROTOCOL_VERSION 15
+#define PROTOCOL_VERSION 21
+#define MIN_PROTOCOL_VERSION 11
 #define MAX_PROTOCOL_VERSION 30

 #define RSYNC_PORT 873
@@ -58,12 +58,14 @@
 #define CHUNK_SIZE (32*1024)
 #define MAX_MAP_SIZE (256*1024)
 #define IO_BUFFER_SIZE (4092)
+#define MAX_READ_BUFFER (1024*1024)

 #define MAX_ARGS 1000

 #define MPLEX_BASE 7
-
-enum logcode {FNONE=0, FERROR=1, FINFO=2, FLOG=3};
+#define FERROR 1
+#define FINFO 2
+#define FLOG 3

 #include "errcode.h"

@@ -321,9 +323,9 @@ struct sum_buf {

 struct sum_struct {
  OFF_T flength;		/* total file length */
-  int count;			/* how many chunks */
-  int remainder;		/* flength % block_length */
-  int n;			/* block_length */
+  size_t count;			/* how many chunks */
+  size_t remainder;		/* flength % block_length */
+  size_t n;			/* block_length */
  struct sum_buf *sums;		/* points to info for each chunk */
 };

@@ -472,7 +474,7 @@ extern int errno;
 #define NS(s) ((s)?(s):"<NULL>")

 /* use magic gcc attributes to catch format errors */
- void rprintf(enum logcode , const char *, ...)
+ void rprintf(int , const char *, ...)
 #ifdef __GNUC__
     __attribute__ ((format (printf, 2, 3)))
 #endif
--- a/rsync.yo
+++ b/rsync.yo
@@ -1,5 +1,5 @@
 mailto(rsync-bugs@samba.org)
-manpage(rsync)(1)(1 Mar 1999)()()
+manpage(rsync)(1)(14 Dec 2001)()()
 manpagename(rsync)(faster, flexible replacement for rcp)
 manpagesynopsis()

@@ -19,7 +19,7 @@ manpagedescription()

 rsync is a program that behaves in much the same way that rcp does,
 but has many more options and uses the rsync remote-update protocol to
-greatly speedup file transfers when the destination file already
+greatly speed up file transfers when the destination file already
 exists.

 The rsync remote-update protocol allows rsync to transfer just the
@@ -81,7 +81,7 @@ Once installed you can use rsync to any machine that you can use rsh
 to.  rsync uses rsh for its communications, unless both the source and
 destination are local.

-You can also specify an alternative to rsh, by either using the -e
+You can also specify an alternative to rsh, either by using the -e
 command line option, or by setting the RSYNC_RSH environment variable.

 One common substitute is to use ssh, which offers a high degree of
@@ -139,10 +139,10 @@ It is also possible to use rsync without using rsh or ssh as the
 transport. In this case you will connect to a remote rsync server
 running on TCP port 873. 

-You may establish the connetcion via a web proxy by setting the
+You may establish the connection via a web proxy by setting the
 environment variable RSYNC_PROXY to a hostname:port pair pointing to
-your web proxy. Note that your web proxy must allow proxying to port
-873, this must be configured in your proxy servers ruleset.
+your web proxy.  Note that your web proxy's configuration must allow
+proxying to port 873.

 Using rsync in this way is the same as using it with rsh or ssh except
 that:
@@ -223,11 +223,11 @@ verb(
 -r, --recursive             recurse into directories
 -R, --relative              use relative path names
 -b, --backup                make backups (default ~ suffix)
-     --backup-dir=DIR        put backups in the specified directory
+     --backup-dir            make backups into this directory
     --suffix=SUFFIX         override backup suffix
 -u, --update                update only (don't overwrite newer files)
- -l, --links                 preserve soft links
- -L, --copy-links            treat soft links like regular files
+ -l, --links                 copy symlinks as symlinks
+ -L, --copy-links            copy the referent of symlinks
     --copy-unsafe-links     copy links outside the source tree
     --safe-links            ignore links outside the destination tree
 -H, --hard-links            preserve hard links
@@ -248,6 +248,7 @@ verb(
     --delete                delete files that don't exist on the sending side
     --delete-excluded       also delete excluded files on the receiving side
     --delete-after          delete after transferring, not before
+     --ignore-errors         delete even if there are IO errors
     --max-delete=NUM        don't delete more than NUM files
     --partial               keep partially transferred files
     --force                 force deletion of directories even if not empty
@@ -255,6 +256,7 @@ verb(
     --timeout=TIME          set IO timeout in seconds
 -I, --ignore-times          don't exclude files that match length and time
     --size-only             only use file size when determining if a file should be transferred
+     --modify-window=NUM     Timestamp window (seconds) for file match (default=0)
 -T  --temp-dir=DIR          create temporary files in directory DIR
     --compare-dest=DIR      also compare destination files relative to DIR
 -P                          equivalent to --partial --progress
@@ -265,14 +267,21 @@ verb(
     --include-from=FILE     don't exclude patterns listed in FILE
     --version               print version number
     --daemon                run as a rsync daemon
-     --address               bind to the specified address
+     --no-detach             do not detach from the parent
+     --address=ADDRESS       bind to the specified address
     --config=FILE           specify alternate rsyncd.conf file
     --port=PORT             specify alternate rsyncd port number
+     --blocking-io           use blocking IO for the remote shell
     --stats                 give some file transfer stats
     --progress              show progress during transfer
     --log-format=FORMAT     log file transfers using specified format
     --password-file=FILE    get password from FILE
+     --bwlimit=KBPS          limit I/O bandwidth, KBytes per second
+     --read-batch=FILE       read batch file
+     --write-batch           write batch file
 -h, --help                  show this help screen
+
+
 )

 manpageoptions()
@@ -313,14 +322,26 @@ regardless of timestamp. This is useful when starting to use rsync
 after using another mirroring system which may not preserve timestamps
 exactly.

+dit(bf(--modify-window)) When comparing two timestamps rsync treats
+the timestamps as being equal if they are within the value of
+modify_window. This is normally zero, but you may find it useful to
+set this to a larger value in some situations. In particular, when
+transferring to/from FAT filesystems which cannot represent times with
+a 1 second resolution this option is useful.
+
 dit(bf(-c, --checksum)) This forces the sender to checksum all files using
 a 128-bit MD4 checksum before transfer. The checksum is then
 explicitly checked on the receiver and any files of the same name
 which already exist and have the same checksum and size on the
 receiver are skipped.  This option can be quite slow.

-dit(bf(-a, --archive)) This is equivalent to -rlptgoD. It is a quick way
-of saying you want recursion and want to preserve everything.
+dit(bf(-a, --archive)) This is equivalent to -rlptgoD. It is a quick
+way of saying you want recursion and want to preserve almost
+everything.  
+
+Note however that bf(-a) bf(does not preserve hardlinks), because
+finding multiply-linked files is expensive.  You must separately
+specify bf(-H).

 dit(bf(-r, --recursive)) This tells rsync to copy directories
 recursively. If you don't specify this then rsync won't copy
@@ -357,17 +378,16 @@ dit(bf(-u, --update)) This forces rsync to skip any files for which the
 destination file already exists and has a date later than the source
 file.

-dit(bf(-l, --links)) This tells rsync to recreate symbolic links on the
-remote system  to  be the same as the local system. Without this
-option, all symbolic links are skipped.
+dit(bf(-l, --links)) When symlinks are encountered, recreate the
+symlink on the destination.

-dit(bf(-L, --copy-links)) This tells rsync to treat symbolic links just
-like ordinary files.
+dit(bf(-L, --copy-links)) When symlinks are encountered, the file that
+they point to is copied, rather than the symlink.

-dit(bf(--copy-unsafe-links)) This tells rsync to treat symbolic links that
-point outside the source tree like ordinary files.  Absolute symlinks are
-also treated like ordinary files, and so are any symlinks in the source
-path itself when --relative is used.
+dit(bf(--copy-unsafe-links)) This tells rsync to copy the referent of
+symbolic links that point outside the source tree.  Absolute symlinks
+are also treated like ordinary files, and so are any symlinks in the
+source path itself when --relative is used.

 dit(bf(--safe-links)) This tells rsync to ignore any symbolic links
 which point outside the destination tree. All absolute symlinks are
@@ -384,22 +404,24 @@ are in the list of files being sent.
 This option can be quite slow, so only use it if you need it.

 dit(bf(-W, --whole-file)) With this option the incremental rsync algorithm
-is  not used  and  the whole file is sent as-is instead. This may be
-useful when using rsync with a local machine.
+is not used and the whole file is sent as-is instead.  The transfer may be
+faster if this option is used when the bandwidth between the source and
+target machines is higher than the bandwidth to disk (especially when the
+"disk" is actually a networked file system).  This is the default when both
+the source and target are on the local machine.

 dit(bf(-p, --perms)) This option causes rsync to update the remote
 permissions to be the same as the local permissions.

-dit(bf(-o, --owner)) This option causes rsync to update the  remote  owner
-of the  file to be the same as the local owner. This is only available
-to the super-user.  Note that if the source system is a daemon using chroot,
-the --numeric-ids option is implied because the source system cannot get
-access to the usernames.
+dit(bf(-o, --owner)) This option causes rsync to set the owner of the
+destination file to be the same as the source file.  On most systems,
+only the super-user can set file ownership.  

-dit(bf(-g, --group)) This option causes rsync to update the  remote  group
-of the file to be the same as the local group.  If the receving system is
-not running as the super-user, only groups that the receiver is a member of
-will be preserved (by group name, not group id number).
+dit(bf(-g, --group)) This option causes rsync to set the group of the
+destination file to be the same as the source file.  If the receiving
+program is not running as the super-user, only groups that the
+receiver is a member of will be preserved (by group name, not group id
+number).

 dit(bf(-D, --devices)) This option causes rsync to transfer character and
 block device information to the remote system to recreate these
@@ -448,7 +470,7 @@ If the sending side detects any IO errors then the deletion of any
 files at the destination will be automatically disabled. This is to
 prevent temporary filesystem failures (such as NFS errors) on the
 sending side causing a massive deletion of files on the
-destination. 
+destination.  You can override this with the --ignore-errors option.

 dit(bf(--delete-excluded)) In addition to deleting the files on the
 receiving side that are not on the sending side, this tells rsync to also
@@ -459,6 +481,9 @@ transferring files to try to ensure that there is sufficient space on
 the receiving filesystem. If you want to delete after transferring
 then use the --delete-after switch.

+dit(bf(--ignore-errors)) Tells --delete to go ahead and delete files
+even when there are IO errors.
+
 dit(bf(--force)) This options tells rsync to delete directories even if
 they are not empty.  This applies to both the --delete option and to
 cases where rsync tries to copy a normal file but the destination
@@ -467,7 +492,7 @@ contains a directory of the same name.
 Since this option was added, deletions were reordered to be done depth-first
 so it is hardly ever needed anymore except in very obscure cases.

-dit(bf(-B , --block_size=BLOCKSIZE)) This controls the block size used in
+dit(bf(-B , --block-size=BLOCKSIZE)) This controls the block size used in
 the rsync algorithm. See the technical report for details.

 dit(bf(-e, --rsh=COMMAND)) This option allows you to choose an alternative
@@ -478,6 +503,8 @@ like to instead use ssh because of its high security.
 You can also choose the remote shell program using the RSYNC_RSH
 environment variable.

+See also the --blocking-io option which is affected by this option.
+
 dit(bf(--rsync-path=PATH)) Use this to specify the path to the copy of
 rsync on the remote machine. Useful when it's not in your path. Note
 that this is the full path to the binary, not just the directory that
@@ -494,9 +521,9 @@ See the section on exclude patterns for information on the syntax of
 this option.

 dit(bf(--exclude-from=FILE)) This option is similar to the --exclude
-option, but instead it adds all filenames listed in the file FILE to
-the exclude list.  Blank lines in FILE and lines starting with ';' or '#'
-are ignored.
+option, but instead it adds all exclude patterns listed in the file
+FILE to the exclude list.  Blank lines in FILE and lines starting with
+';' or '#' are ignored.

 dit(bf(--include=PATTERN)) This option tells rsync to not exclude the
 specified pattern of filenames. This is useful as it allows you to
@@ -522,8 +549,9 @@ quote(RCS SCCS CVS CVS.adm RCSLOG cvslog.* tags TAGS .make.state
 then files listed in a $HOME/.cvsignore are added to the list and any
 files listed in the CVSIGNORE environment variable (space delimited).

-Finally in each directory any files listed in the .cvsignore file in
-that directory are added to the list.
+Finally, any file is ignored if it is in the same directory as a
+.cvsignore file and matches one of the patterns listed therein.  See
+the bf(cvs(1)) manual for more information.

 dit(bf(--csum-length=LENGTH)) By default the primary checksum used in
 rsync is a very strong 16 byte MD4 checksum. In most cases you will
@@ -549,20 +577,20 @@ scratch directory when creating temporary copies of the files
 transferred on the receiving side.  The default behavior is to create
 the temporary files in the receiving directory.

-dit(bf(--compare-dest=DIR)) This option instructs rsync to use DIR as an
-additional directory to compare destination files against when doing
-transfers.  This is useful for doing transfers to a new destination while
-leaving existing files intact, and then doing a flash-cutover when all
-files have been successfully transferred (for example by moving directories
-around and removing the old directory, although this requires also doing
-the transfer with -I to avoid skipping files that haven't changed).  This
-option increases the usefulness of --partial because partially transferred
-files will remain in the new temporary destination until they have a chance
-to be completed.  If DIR is a relative path, it is relative to the
-destination directory.
+dit(bf(--compare-dest=DIR)) This option instructs rsync to use DIR on
+the destination machine as an additional directory to compare destination
+files against when doing transfers.  This is useful for doing transfers to
+a new destination while leaving existing files intact, and then doing a
+flash-cutover when all files have been successfully transferred (for
+example by moving directories around and removing the old directory,
+although this requires also doing the transfer with -I to avoid skipping
+files that haven't changed).  This option increases the usefulness of
+--partial because partially transferred files will remain in the new
+temporary destination until they have a chance to be completed.  If DIR is
+a relative path, it is relative to the destination directory.

 dit(bf(-z, --compress)) With this option, rsync compresses any data from
-the source file(s) which it sends to the destination machine.  This
+the files that it sends to the destination machine.  This
 option is useful on slow links.  The compression method used is the
 same method that gzip uses.

@@ -580,21 +608,33 @@ what ownership to give files. The special uid 0 and the special group
 0 are never mapped via user/group names even if the --numeric-ids
 option is not specified.

-If the source system is a daemon using chroot, or if a user or group name
-does not exist on the destination system, then the numeric id from the
-source system is used instead.
+If the source system is a daemon using chroot, or if a user or group
+name does not exist on the destination system, then the numeric id
+from the source system is used instead.

 dit(bf(--timeout=TIMEOUT)) This option allows you to set a maximum IO
 timeout in seconds. If no data is transferred for the specified time
 then rsync will exit. The default is 0, which means no timeout.

-dit(bf(--daemon)) This tells rsync that it is to run as a rsync
-daemon. If standard input is a socket then rsync will assume that it
-is being run via inetd, otherwise it will detach from the current
-terminal and become a background daemon. The daemon will read the
-config file (/etc/rsyncd.conf) on each connect made by a client and
-respond to requests accordingly. See the rsyncd.conf(5) man page for more
-details. 
+dit(bf(--daemon)) This tells rsync that it is to run as a daemon.  The
+daemon may be accessed using the bf(host::module) or
+bf(rsync://host/module/) syntax.
+
+If standard input is a socket then rsync will assume that it is being
+run via inetd, otherwise it will detach from the current terminal and
+become a background daemon.  The daemon will read the config file
+(/etc/rsyncd.conf) on each connect made by a client and respond to
+requests accordingly.  See the rsyncd.conf(5) man page for more
+details.
+
+dit(bf(--no-detach)) When running as a daemon, this option instructs
+rsync to not detach itself and become a background process.  This
+option is required when running as a service on Cygwin, and may also
+be useful when rsync is supervised by a program such as
+bf(daemontools) or AIX's bf(System Resource Controller).
+bf(--no-detach) is also recommended when rsync is run under a
+debugger.  This option has no effect if rsync is run from inetd or
+sshd.

 dit(bf(--address)) By default rsync will bind to the wildcard address
 when run as a daemon with the --daemon option or when connecting to a
@@ -609,6 +649,12 @@ specified.
 dit(bf(--port=PORT)) This specifies an alternate TCP port number to use
 rather than the default port 873.

+dit(bf(--blocking-io)) This tells rsync to use blocking IO when launching
+a remote shell transport.  If -e or --rsh are not specified or are set to
+the default "rsh", this defaults to blocking IO, otherwise it defaults to
+non-blocking IO.  You may find the --blocking-io option is needed for some
+remote shells that can't handle non-blocking IO.  Ssh prefers blocking IO.
+
 dit(bf(--log-format=FORMAT)) This allows you to specify exactly what the
 rsync client logs to stdout on a per-file basis. The log format is
 specified using the same format conventions as the log format option in
@@ -642,6 +688,19 @@ transport, not when using a remote shell as the transport. The file
 must not be world readable. It should contain just the password as a
 single line.

+dit(bf(--bwlimit=KBPS)) This option allows you to specify a maximum
+transfer rate in kilobytes per second. This option is most effective when
+using rsync with large files (several megabytes and up). Due to the nature
+of rsync transfers, blocks of data are sent, then if rsync determines the
+transfer was too fast, it will wait before sending the next data block. The
+result is an average transfer rate equalling the specified limit. A value
+of zero specifies no limit.
+
+dit(bf(--read-batch)) Apply a previously generated change batch.
+
+dit(bf(--write-batch)) Generate a set of files that can be transferred
+as a batch update.
+
 enddit()

 manpagesection(EXCLUDE PATTERNS)
@@ -649,15 +708,19 @@ manpagesection(EXCLUDE PATTERNS)
 The exclude and include patterns specified to rsync allow for flexible
 selection of which files to transfer and which files to skip.

-rsync builds a ordered list of include/exclude options as specified on
+rsync builds an ordered list of include/exclude options as specified on
 the command line. When a filename is encountered, rsync checks the
 name against each exclude/include pattern in turn. The first matching
-pattern is acted on. If it is an exclude pattern than that file is
+pattern is acted on. If it is an exclude pattern, then that file is
 skipped. If it is an include pattern then that filename is not
 skipped. If no matching include/exclude pattern is found then the
 filename is not skipped.

-Note that the --include and --exclude options take one pattern
+Note that when used with -r (which is implied by -a), every subcomponent of
+every path is visited from top down, so include/exclude patterns get
+applied recursively to each subcomponent.
+
+Note also that the --include and --exclude options take one pattern
 each. To add multiple patterns use the --include-from and
 --exclude-from options or multiple --include and --exclude options. 

@@ -666,9 +729,11 @@ The patterns can take several forms. The rules are:
 itemize(
  it() if the pattern starts with a / then it is matched against the
  start of the filename, otherwise it is matched against the end of
-  the filename. Thus /foo would match a file called foo
-  at the base of the tree whereas foo would match any file
-  called foo anywhere in the tree.
+  the filename.  Thus "/foo" would match a file called "foo" at the base of
+  the tree.  On the other hand, "foo" would match any file called "foo"
+  anywhere in the tree because the algorithm is applied recursively from
+  top down; it behaves as if each path component gets a turn at being the
+  end of the file name.

  it() if the pattern ends with a / then it will only match a
  directory, not a file, link or device.
@@ -677,12 +742,15 @@ itemize(
  *?[ then expression matching is applied using the shell filename
  matching rules. Otherwise a simple string match is used.

+  it() if the pattern includes a double asterisk "**" then all wildcards in
+  the pattern will match slashes, otherwise they will stop at slashes.
+
  it() if the pattern contains a / (not counting a trailing /) then it
  is matched against the full filename, including any leading
  directory. If the pattern doesn't contain a / then it is matched
-  only against the final component of the filename.  Furthermore, if
-  the pattern includes a double asterisk "**" then all wildcards in
-  the pattern will match slashes, otherwise they will stop at slashes.
+  only against the final component of the filename.  Again, remember
+  that the algorithm is applied recursively so "full filename" can 
+  actually be any portion of a path.

  it() if the pattern starts with "+ " (a plus followed by a space)
  then it is always considered an include pattern, even if specified as
@@ -693,13 +761,20 @@ itemize(
  part of an include option. The "- " part is discarded before matching.

  it() if the pattern is a single exclamation mark ! then the current
-  exclude list is reset, removing all previous exclude patterns.
+  include/exclude list is reset, removing all previously defined patterns.
 )

 The +/- rules are most useful in exclude lists, allowing you to have a
 single exclude list that contains both include and exclude options.

-Here are some examples:
+If you end an exclude list with --exclude '*', note that since the
+algorithm is applied recursively that unless you explicitly include
+parent directories of files you want to include then the algorithm
+will stop at the parent directories and never see the files below
+them.  To include all directories, use --include '*/' before the
+--exclude '*'.
+
+Here are some exclude/include examples:

 itemize(
  it() --exclude "*.o" would exclude all filenames matching *.o
@@ -716,6 +791,55 @@ itemize(
  it would be excluded by the "*")
 )

+manpagesection(BATCH MODE)
+
+bf(Note:) Batch mode should be considered experimental in this version
+of rsync.  The interface or behaviour may change before it stabilizes.
+
+The following call generates 4 files that encapsulate the information
+for synchronizing the contents of bf(target_dir) with the updates found in
+bf(src_dir)
+
+quote(
+$ rsync --write-batch [other rsync options here] \nl()
+           /somewhere/src_dir /somewhere/target_dir
+)
+
+The generated files are labeled with a common timestamp:
+
+itemize(
+it() bf(rsync_argvs.<timestamp>) command-line arguments
+it() bf(rsync_flist.<timestamp>) rsync internal file metadata
+it() bf(rsync_csums.<timestamp>) rsync checksums
+it() bf(rsync_delta.<timestamp>) data blocks for file update & change
+)
+
+See bf(http://www.ils.unc.edu/i2dsi/unc_rsync+.html) for papers and technical
+reports.
+
+manpagesection(SYMBOLIC LINKS)
+
+Three basic behaviours are possible when rsync encounters a symbolic
+link in the source directory.
+
+By default, symbolic links are not transferred at all.  A message
+"skipping non-regular" file is emitted for any symlinks that exist.
+
+If bf(--links) is specified, then symlinks are recreated with the same
+target on the destination.  Note that bf(--archive) implies
+bf(--links).
+
+If bf(--copy-links) is specified, then symlinks are "collapsed" by
+copying their referent, rather than the symlink.
+
+rsync also distinguishes "safe" and "unsafe" symbolic links.  An
+example where this might be used is a web site mirror that wishes
+ensure the rsync module they copy does not include symbolic links to
+bf(/etc/passwd) in the public section of the site.  Using
+bf(--copy-unsafe-links) will cause any links to be copied as the file
+they point to on the destination.  Using bf(--safe-links) will cause
+unsafe links to be ommitted altogether.
+
 manpagesection(DIAGNOSTICS)

 rsync occasionally produces error messages that may seem a little
@@ -739,6 +863,33 @@ it. The most common cause is incorrectly configured shell startup
 scripts (such as .cshrc or .profile) that contain output statements
 for non-interactive logins.

+If you are having trouble debugging include and exclude patterns, then
+try specifying the -vv option.  At this level of verbosity rsync will
+show why each individual file is included or excluded.
+
+manpagesection(EXIT VALUES)
+
+startdit()
+dit(bf(RERR_SYNTAX     1))       Syntax or usage error 
+dit(bf(RERR_PROTOCOL   2))       Protocol incompatibility 
+dit(bf(RERR_FILESELECT 3))       Errors selecting input/output files, dirs
+
+dit(bf(RERR_UNSUPPORTED 4)) Requested action not supported: an attempt
+was made to manipulate 64-bit files on a platform that cannot support
+them; or an option was speciifed that is supported by the client and
+not by the server.
+
+dit(bf(RERR_SOCKETIO   10))      Error in socket IO 
+dit(bf(RERR_FILEIO     11))      Error in file IO 
+dit(bf(RERR_STREAMIO   12))      Error in rsync protocol data stream 
+dit(bf(RERR_MESSAGEIO  13))      Errors with program diagnostics 
+dit(bf(RERR_IPC        14))      Error in IPC code 
+dit(bf(RERR_SIGNAL     20))      Received SIGUSR1 or SIGINT 
+dit(bf(RERR_WAITCHILD  21))      Some error returned by waitpid() 
+dit(bf(RERR_MALLOC     22))      Error allocating core memory buffers 
+dit(bf(RERR_TIMEOUT    30))      Timeout in data send/receive 
+enddit()
+
 manpagesection(ENVIRONMENT VARIABLES)

 startdit()
@@ -799,7 +950,9 @@ rsync is distributed under the GNU public license.  See the file
 COPYING for details.

 A WEB site is available at
-url(http://rsync.samba.org/)(http://rsync.samba.org/)
+url(http://rsync.samba.org/)(http://rsync.samba.org/).  The site
+includes an FAQ-O-Matic which may cover questions unanswered by this
+manual page.

 The primary ftp site for rsync is
 url(ftp://rsync.samba.org/pub/rsync)(ftp://rsync.samba.org/pub/rsync).
@@ -812,13 +965,22 @@ Jean-loup Gailly and Mark Adler.
 manpagesection(THANKS)

 Thanks to Richard Brent, Brendan Mackay, Bill Waite, Stephen Rothwell
-and David Bell for helpful suggestions and testing of rsync. I've
-probably missed some people, my apologies if I have.
+and David Bell for helpful suggestions, patches and testing of rsync.
+I've probably missed some people, my apologies if I have.
+
+Especial thanks also to: David Dykstra, Jos Backus, Sebastian Krahmer.


 manpageauthor()

-rsync was written by Andrew Tridgell and Paul Mackerras.  They may be
-contacted via email at tridge@samba.org and
-Paul.Mackerras@cs.anu.edu.au
+rsync was written by Andrew Tridgell <tridge@samba.org> and Paul
+Mackerras.

+rsync is now maintained by Martin Pool <mbp@samba.org>.  
+
+Mailing lists for support and development are available at
+url(http://lists.samba.org)(lists.samba.org) 
+
+If you suspect you have found a security vulnerability in rsync,
+please send it directly to Martin Pool and Andrew Tridgell.  For other
+enquiries, please use the mailing list.
--- a/rsync3.txt
+++ b/rsync3.txt
@@ -0,0 +1,469 @@
+-*- indented-text -*-
+
+Notes towards a new version of rsync 
+Martin Pool <mbp@samba.org>, September 2001.
+
+
+Good things about the current implementation:
+
+  - Widely known and adopted.
+
+  - Fast/efficient, especially for moderately small sets of files over
+    slow links (transoceanic or modem.)
+
+  - Fairly reliable.
+
+  - The choice of runnning over a plain TCP socket or tunneling over
+    ssh.
+
+  - rsync operations are idempotent: you can always run the same
+    command twice to make sure it worked properly without any fear.
+    (Are there any exceptions?)
+
+  - Small changes to files cause small deltas.
+
+  - There is a way to evolve the protocol to some extent.
+
+  - rdiff and rsync --write-batch allow generation of standalone patch
+    sets.  rsync+ is pretty cheesy, though.  xdelta seems cleaner.
+
+  - Process triangle is creative, but seems to provoke OS bugs.
+
+  - "Morning-after property": you don't need to know anything on the
+    local machine about the state of the remote machine, or about
+    transfers that have been done in the past.
+
+  - You can easily push or pull simply by switching the order of
+    files.
+
+  - The "modules" system has some neat features compared to
+    e.g. Apache's per-directory configuration.  In particular, because
+    you can set a userid and chroot directory, there is strong
+    protection between different modules.  I haven't seen any calls
+    for a more flexible system.
+
+
+Bad things about the current implementation:
+
+  - Persistent and hard-to-diagnose hang bugs remain
+
+  - Protocol is sketchily documented, tied to this implementation, and
+    hard to modify/extend
+
+  - Both the program and the protocol assume a single non-interactive
+    one-way transfer 
+
+  - A list of all files are held in memory for the entire transfer,
+    which cripples scalability to large file trees
+
+  - Opening a new socket for every operation causes problems,
+    especially when running over SSH with password authentication.
+
+  - Renamed files are not handled: the old file is removed, and the
+    new file created from scratch.
+
+  - The versioning approach assumes that future versions of the
+    program know about all previous versions, and will do the right
+    thing.
+
+  - People always get confused about ':' vs '::'
+
+  - Error messages can be cryptic.
+
+  - Default behaviour is not intuitive: in too many cases rsync will
+    happily do nothing.  Perhaps -a should be the default?
+
+  - People get confused by trailing slashes, though it's hard to think
+    of another reasonable way to make this necessary distinction
+    between a directory and its contents.
+
+
+Protocol philosophy:
+
+   *The* big difference between protocols like HTTP, FTP, and NFS is
+    that their fundamental operations are "read this file", "delete
+    this file", and "make this directory", whereas rsync is "make this
+    directory like this one".
+
+
+Questionable features:
+
+  These are neat, but not necessarily clean or worth preserving.  
+
+  - The remote rsync can be wrapped by some other program, such as in
+    tridge's rsync-mail scripts.  The general feature of sending and
+    retrieving mail over rsync is good, but this is perhaps not the
+    right way to implement it.
+
+
+Desirable features:
+
+  These don't really require architectural changes; they're just
+  something to keep in mind.
+ 
+  - Synchronize ACLs and extended attributes
+
+  - Anonymous servers should be efficient
+
+  - Code should be portable to non-UNIX systems
+
+  - Should be possible to document the protocol in RFC form
+
+  - --dry-run option
+
+  - IPv6 support.  Pretty straightforward.
+
+  - Allow the basis and destination files to be different.  For
+    example, you could use this when you have a CD-ROM and want to
+    download an updated image onto a hard drive.
+
+  - Efficiently interrupt and restart a transfer.  We can write a
+    checkpoint file that says where we're up to in the filesystem.
+    Alternatively, as long as transfers are idempotent, we can just
+    restart the whole thing.  [NFSv4]
+
+  - Scripting support.  
+
+  - Propagate atimes and do not modify them.  This is very ugly on
+    Unix.  It might be better to try to add O_NOATIME to kernels, and
+    call that.
+
+  - Unicode.  Probably just use UTF-8 for everything.
+
+  - Open authentication system.  Can we use PAM?  Is SASL an adequate
+    mapping of PAM to the network, or useful in some other way?
+
+  - Resume interrupted transfers without the --partial flag.  We need
+    to leave the temporary file behind, and then know to use it.  This
+    leaves a risk of large temporary files accumulating, which is not
+    good.  Perhaps it should be off by default.
+
+  - tcpwrappers support.  Should be trivial; can already be done
+    through tcpd or inetd.
+
+  - Socks support built in.  It's not clear this is any better than
+    just linking against the socks library, though.
+
+  - When run over SSH, invoke with predictable command-line arguments,
+    so that people can restrict what commands sshd will run.  (Is this
+    really required?)
+
+  - Comparison mode: give a list of which files are new, gone, or
+    different.  Set return code depending on whether anything has
+    changed.
+
+  - Internationalized messages (gettext?)
+
+  - Optionally use real regexps rather than globs?
+
+  - Show overall progress.  Pretty hard to do, especially if we insist
+    on not scanning the directory tree up front.
+
+
+Regression testing:
+
+  - Support automatic testing.
+
+  - Have hard internal timeouts against hangs.
+
+  - Be deterministic.
+
+  - Measure performance.
+
+
+Hard links:
+
+  At the moment, we can recreate hard links, but it's a bit
+  inefficient: it depends on holding a list of all files in the tree.
+  Every time we see a file with a linkcount >1, we need to search for
+  another known name that has the same (fsid,inum) tuple.  We could do
+  that more efficiently by keeping a list of only files with
+  linkcount>1, and removing files from that list as all their names
+  become known.
+
+
+Command-line options:
+
+  We have rather a lot at the moment.  We might get more if the tool
+  becomes more flexible.  Do we need a .rc or configuration file?
+  That wouldn't really fit with its pattern of use: cp and tar don't
+  have them, though ssh does.
+
+
+Scripting issues:
+
+  - Perhaps support multiple scripting languages: candidates include
+    Perl, Python, Tcl, Scheme (guile?), sh, ...
+
+  - Simply running a subprocess and looking at its stdout/exit code
+    might be sufficient, though it could also be pretty slow if it's
+    called often.
+
+  - There are security issues about running remote code, at least if
+    it's not running in the users own account.  So we can either
+    disallow it, or use some kind of sandbox system.
+
+  - Python is a good language, but the syntax is not so good for
+    giving small fragments on the command line.
+
+  - Tcl is broken Lisp.
+
+  - Lots of sysadmins know Perl, though Perl can give some bizarre or
+    confusing errors.  The built in stat operators and regexps might
+    be useful.
+
+  - Sadly probably not enough people know Scheme.
+
+  - sh is hard to embed.
+
+
+Scripting hooks:
+
+  - Whether to transfer a file
+
+  - What basis file to use
+
+  - Logging
+  
+  - Whether to allow transfers (for public servers)
+
+  - Authentication
+
+  - Locking
+
+  - Cache
+
+  - Generating backup path/name.
+
+  - Post-processing of backups, e.g. to do compression.
+
+  - After transfer, before replacement: so that we can spit out a diff
+    of what was changed, or kick off some kind of reconciliation
+    process.
+
+
+VFS:
+
+  Rather than talking straight to the filesystem, rsyncd talks through
+  an internal API.  Samba has one.  Is it useful?
+
+  - Could be a tidy way to implement cached signatures.
+
+  - Keep files compressed on disk?
+
+
+Interactive interface:
+
+  - Something like ncFTP, or integration into GNOME-vfs.  Probably
+    hold a single socket connection open.
+
+  - Can either call us as a separate process, or as a library.
+
+  - The standalone process needs to produce output in a form easily
+    digestible by a calling program, like the --emacs feature some
+    have.  Same goes for output: rpm outputs a series of hash symbols,
+    which are easier for a GUI to handle than "\r30% complete"
+    strings.
+
+  - Yow!  emacs support.  (You could probably build that already, of
+    course.)  I'd like to be able to write a simple script on a remote
+    machine that rsyncs it to my workstation, edits it there, then
+    pushes it back up.
+
+
+Pie-in-the-sky features:
+
+  These might have a severe impact on the protocol, and are not
+  clearly in our core requirements.  It looks like in many of them
+  having scripting hooks will allow us 
+
+  - Transport over UDP multicast.  The hard part is handling multiple
+    destinations which have different basis files.  We can look at
+    multicast-TFTP for inspiration.
+
+  - Conflict resolution.  Possibly general scripting support will be
+    sufficient.
+
+  - Integrate with locking.  It's hard to see a good general solution,
+    because Unix systems have several locking mechanisms, and grabbing
+    the lock from programs that don't expect it could cause deadlocks,
+    timeouts, or other problems.  Scripting support might help.
+
+  - Replicate in place, rather than to a temporary file.  This is
+    dangerous in the case of interruption, and it also means that the
+    delta can't refer to blocks that have already been overwritten.
+    On the other hand we could semi-trivially do this at first by
+    simply generating a delta with no copy instructions.
+
+  - Replicate block devices.  Most of the difficulties here are to do
+    with replication in place, though on some systems we will also
+    have to do I/O on block boundaries.
+
+  - Peer to peer features.  Flavour of the year.  Can we think about
+    ways for clients to smoothly and voluntarily become servers for
+    content they receive?
+
+  - Imagine a situation where the destination has a much faster link
+    to the cloud than the source.  In this case, Mojo Nation downloads
+    interleaved blocks from several slower servers.  The general
+    situation might be a way for a master rsync process to farm out
+    tasks to several subjobs.  In this particular case they'd need
+    different sockets.  This might be related to multicast.
+
+
+Unlikely features:
+
+  - Allow remote source and destination.  If this can be cleanly
+    designed into the protocol, perhaps with the remote machine acting
+    as a kind of echo, then it's good.  It's uncommon enough that we
+    don't want to shape the whole protocol around it, though.
+
+    In fact, in a triangle of machines there are two possibilities:
+    all traffic passes from remote1 to remote2 through local, or local
+    just sets up the transfer and then remote1 talks to remote2.  FTP
+    supports the second but it's not clearly good.  There are some
+    security problems with being able to instruct one machine to open
+    a connection to another.
+
+
+In favour of evolving the protocol:
+
+  - Keeping compatibility with existing rsync servers will help with
+    adoption and testing.
+
+  - We should at the very least be able to fall back to the new
+    protocol.
+
+  - Error handling is not so good.
+
+
+In favour of using a new protocol:
+
+  - Maintaining compatibility might soak up development time that
+    would better go into improving a new protocol.
+
+  - If we start from scratch, it can be documented as we go, and we
+    can avoid design decisions that make the protocol complex or
+    implementation-bound. 
+
+
+Error handling:
+
+  - Errors should come back reliably, and be clearly associated with
+    the particular file that caused the problem.
+
+  - Some errors ought to cause the whole transfer to abort; some are
+    just warnings.  If any errors have occurred, then rsync ought to
+    return an error.
+
+
+Concurrency:
+
+  - We want to keep the CPU, filesystem, and network as full as
+    possible as much of the time as possible.
+
+  - We can do nonblocking network IO, but not so for disk.
+
+  - It makes sense to on the destination be generating signatures and
+    applying patches at the same time. 
+
+  - Can structure this with nonblocking, threads, separate processes,
+    etc.
+
+
+Uses:
+
+  - Mirroring software distributions:
+
+  - Synchronizing laptop and desktop
+
+  - NFS filesystem migration/replication.  See
+    http://www.ietf.org/proceedings/00jul/00july-133.htm#P24510_1276764
+
+  - Sync with PDA
+ 
+  - Network backup systems
+
+  - CVS filemover
+
+
+Conflict resolution:
+
+  - Requires application-specific knowledge.  We want to provide
+    policy, rather than mechanism.
+
+  - Possibly allowing two-way migration across a single connection
+    would be useful.
+
+
+Moved files: <http://rsync.samba.org/cgi-bin/rsync.fom?file=44>
+
+  - There's no trivial way to detect renamed files, especially if they
+    move between directories.
+
+  - If we had a picture of the remote directory from last time on
+    either machine, then the inode numbers might give us a hint about
+    files which may have been renamed.
+
+  - Files that are renamed and not modified can be detected by
+    examining the directory listing, looking for files with the same
+    size/date as the origin.
+
+
+Filesystem migration:
+
+  NFSv4 probably wants to migrate file locks, but that's not really
+  our problem.
+
+
+Atomic updates:
+
+  The NFSv4 working group wants atomic migration.  Most of the
+  responsibility for this lies on the NFS server or OS.  
+
+  If migrating a whole tree, then we could do a nearly-atomic rename
+  at the end.  This ties in to having separate basis and destination
+  files.
+
+  There's no way in Unix to replace a whole set of files atomically.
+  However, if we get them all onto the destination machine and then do
+  the updates quickly it would greatly reduce the window.  
+
+
+Scalability:
+ 
+  We should aim to work well on machines in use in a year or two.
+  That probably means transfers of many millions of files in one
+  batch, and gigabytes or terabytes of data.
+
+  For argument's sake: at the low end, we want to sync ten files for a
+  total of 10kb across a 1kB/s link.  At the high end, we want to sync
+  1e9 files for 1TB of data across a 1GB/s link.
+
+  On the whole CPU usage is not normally a limiting factor, if only
+  because running over SSH burns a lot of cycles on encryption.
+
+  Perhaps have resource throttling without relying on rlimit.
+
+
+Streaming:
+
+  A big attraction of rsync is that there are few round-trip delays:
+  basically only one to get started, and then everything is
+  pipelined.  This is a problem with FTP, and NFS (at least up to
+  v3).  NFSv4 can pipeline operations, but building on that is
+  probably a bit complicated.
+
+
+Related work:
+
+  - mirror.pl http://freshmeat.net/project/mirror/
+
+  - ProFTPd
+
+  - Apache
+
+  - http://freshmeat.net/search/?site=Freshmeat&q=mirror&section=projects
+
+  - BitTorrent -- p2p mirroring
+    http://bitconjurer.org/BitTorrent/ 
--- a/rsyncd.conf.yo
+++ b/rsyncd.conf.yo
@@ -44,7 +44,12 @@ in string values.
 manpagesection(LAUNCHING THE RSYNC DAEMON)

 The rsync daemon is launched by specifying the --daemon option to
-rsync. The daemon must run with root privileges.
+rsync. 
+
+The daemon must run with root privileges if you wish to use chroot, to
+bind to a port numbered under 1024 (as is the default 873), or to set
+file ownership.  Otherwise, it must just have permission to read and
+write the appropriate data, log, and lock files.

 You can launch it either via inetd or as a stand-alone daemon. If run
 as a daemon then just run the command "rsync --daemon" from a suitable
@@ -128,8 +133,11 @@ dit(bf(use chroot)) If "use chroot" is true, the rsync server will chroot
 to the "path" before starting the file transfer with the client.  This has
 the advantage of extra protection against possible implementation security
 holes, but it has the disadvantages of requiring super-user privileges and
-of not being able to follow symbolic links outside of the new root path.
-The default is to use chroot.
+of not being able to follow symbolic links outside of the new root path
+when reading.  When "use chroot" is false, for security reasons
+symlinks may only be relative paths pointing to other files within the
+root path, and leading slashes are removed from absolute paths.  The
+default for "use chroot" is true.

 dit(bf(max connections)) The "max connections" option allows you to
 specify the maximum number of simultaneous connections you will allow
@@ -156,12 +164,13 @@ for modules to be listable.
 dit(bf(uid)) The "uid" option specifies the user name or user id that
 file transfers to and from that module should take place as when the daemon
 was run as root. In combination with the "gid" option this determines what
-file permissions are available. The default is the user "nobody".
+file permissions are available. The default is uid -2, which is normally
+the user "nobody".

 dit(bf(gid)) The "gid" option specifies the group name or group id that
 file transfers to and from that module should take place as when the daemon
-was run as root. This complements the "uid" option. The default is the
-group "nobody".
+was run as root. This complements the "uid" option. The default is gid -2,
+which is normally the group "nobody".

 dit(bf(exclude)) The "exclude" option allows you to specify a space
 separated list of patterns to add to the exclude list. This is
@@ -199,13 +208,14 @@ on the server that contains include patterns, one per line. This is
 equivalent to the client specifying the --include-from option with a
 equivalent file.

-dit(bf(auth users)) The "auth users" option specifies a comma
-and space separated list of usernames that will be allowed to connect
-to this module. The usernames do not need to exist on the local
-system. If "auth users" is set then the client will be challenged to
-supply a username and password to connect to the module. A challenge
-response authentication protocol is used for this exchange. The plain
-text usernames are passwords are stored in the file specified by the
+dit(bf(auth users)) The "auth users" option specifies a comma and
+space separated list of usernames that will be allowed to connect to
+this module. The usernames do not need to exist on the local
+system. The usernames may also contain shell wildcard characters. If
+"auth users" is set then the client will be challenged to supply a
+username and password to connect to the module. A challenge response
+authentication protocol is used for this exchange. The plain text
+usernames are passwords are stored in the file specified by the
 "secrets file" option. The default is for all users to be able to
 connect without a password (this is called "anonymous rsync").

@@ -220,7 +230,8 @@ limit the length of passwords that can be typed at the client end, so
 you may find that passwords longer than 8 characters don't work. 

 There is no default for the "secrets file" option, you must choose a name
-(such as tt(/etc/rsyncd.secrets)).
+(such as tt(/etc/rsyncd.secrets)).  The file must normally not be readable
+by "other"; see "strict modes".

 dit(bf(strict modes)) The "strict modes" option determines whether or not 
 the permissions on the secrets file will be checked.  If "strict modes" is
@@ -282,6 +293,11 @@ to a temporary resource shortage or other IO error. In some cases this
 test is counter productive so you can use this option to turn off this
 behaviour. 

+dit(bf(ignore nonreadable)) This tells the rsync server to completely
+ignore files that are not readable by the user. This is useful for
+public archives that may have some non-readable files among the
+directories, and the sysadmin doesn't want those files to be seen at all.
+
 dit(bf(transfer logging)) The "transfer logging" option enables per-file 
 logging of downloads and uploads in a format somewhat similar to that
 used by ftp daemons. If you want to customize the log formats look at
@@ -342,7 +358,7 @@ The "dont compress" option takes a space separated list of
 case-insensitive wildcard patterns. Any source filename matching one
 of the patterns will not be compressed during transfer.

-The default setting is verb(*.gz *.tgz *.zip *.z *.rpm *.deb)
+The default setting is verb(*.gz *.tgz *.zip *.z *.rpm *.deb *.iso *.bz2 *.tbz)

 enddit()

@@ -382,7 +398,7 @@ gid = nobody nl()
 use chroot = no nl()
 max connections = 4 nl()
 syslog facility = local5 nl()
-pid file = /etc/rsyncd.pid
+pid file = /var/run/rsyncd.pid

 verb([ftp]
        path = /var/ftp/pub
--- a/rsyncsh.txt
+++ b/rsyncsh.txt
@@ -0,0 +1,26 @@
+rsyncsh
+Copyright (C) 2001 by Martin Pool
+
+This is a quick hack to build an interactive shell around rsync, the
+same way we have the ftp, lftp and ncftp programs for the FTP
+protocol.  The key application for this is connecting to a public
+rsync server, such as rsync.kernel.org, change down through and list
+directories, and finally pull down the file you want.
+
+rsync is somewhat ill-at-ease as an interactive operation, since every
+network connection is used to carry out exactly one operation.  rsync
+kind of "forks across the network" passing the options and filenames
+to operate upon, and the connection is closed when the transfer is
+complete.  (This might be fixed in the future, either by adapting the
+current protocol to allow chained operations over a single socket, or
+by writing a new protocol that better supports interactive use.)
+
+So, rsyncsh runs a new rsync command and opens a new socket for every
+(network-based) command you type.
+
+This has two consequences.  Firstly, there is more command latency
+than is really desirable.  More seriously, if the connection cannot be
+done automatically, because for example it uses SSH with a password,
+then you will need to enter the password every time.  We might even
+fix this in the future, though, by having a way to automatically feed
+the password to SSH if it's entered once.
--- a/runtests.sh
+++ b/runtests.sh
@@ -0,0 +1,247 @@
+#! /bin/sh
+
+# Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version
+# 2 as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+# rsync top-level test script -- this invokes all the other more
+# detailed tests in order.  This script can either be called by `make
+# check' or `make installcheck'.  `check' runs against the copies of
+# the program and other files in the build directory, and
+# `installcheck' against the installed copy of the program.  
+
+# In either case we need to also be able to find the source directory,
+# since we read test scripts and possibly other information from
+# there.
+
+# Whenever possible, informational messages are written to stdout and
+# error messages to stderr.  They're separated out by the build farm
+# display scripts.
+
+# According to the GNU autoconf manual, the only valid place to set up
+# directory locations is through Make, since users are allowed to (try
+# to) change their mind on the Make command line.  So, Make has to
+# pass in all the values we need.
+
+# For other configured settings we read ./config.sh, which tells us
+# about shell commands on this machine and similar things.
+
+# rsync_bin gives the location of the rsync binary.  This is either
+# builddir/rsync if we're testing an uninstalled copy, or
+# install_prefix/bin/rsync if we're testing an installed copy.  On the
+# build farm rsync will be installed, but into a scratch /usr.
+
+# srcdir gives the location of the source tree, which lets us find the
+# build scripts.  At the moment we assume we are invoked from the
+# source directory.
+
+# This script must be invoked from the build directory.  
+
+# A scratch directory, 'testtmp', is created in the build directory to
+# hold working files.
+
+# This script also uses the $loglevel environment variable.  1 is the
+# default value, and 10 the most verbose.  You can set this from the
+# Make command line.  It's also set by the build farm to give more
+# detail for failing builds.
+
+
+# NOTES FOR TEST CASES:
+
+# Each test case runs in its own shell. 
+
+# Exit codes from tests:
+
+#    1  tests failed
+#    2  error in starting tests
+#   77  this test skipped (random value unlikely to happen by chance, same as
+#       automake)
+
+# HOWEVER, the overall exit code to the farm is different: we return
+# the *number of tests that failed*, so that it will show up nicely in
+# the overall summary.
+
+# rsync.fns contains some general setup functions and definitions.
+
+
+# NOTES ON PORTABILITY:
+
+# Both this script and the Makefile have to be pretty conservative
+# about which Unix features they use.
+
+# We cannot count on Make exporting variables to commands, unless
+# they're explicitly given on the command line.
+
+# Also, we can't count on 'cp -a' or 'mkdir -p', although they're
+# pretty handy.
+
+# I think some of the GNU documentation suggests that we shouldn't
+# rely on shell functions.  However, the Bash manual seems to say that
+# they're in POSIX 1003.2, and since the build farm relies on them
+# they're probably working on most machines we really care about.
+
+# You cannot use "function foo {" syntax, but must instead say "foo()
+# {", or it breaks on FreeBSD.
+
+# BSD machines tend not to have "head" or "seq".
+
+# You cannot do "export VAR=VALUE" all on one line; the export must be
+# separate from the assignment.  (SCO SysV)
+
+
+
+# STILL TO DO:
+
+# We need a good protection against tests that hang indefinitely.
+# Perhaps some combination of starting them in the background, wait,
+# and kill?
+
+# Perhaps we need a common way to cleanup tests.  At the moment just
+# clobbering the directory when we're done should be enough.
+
+# If any of the targets fail, then (GNU?) Make returns 2, instead of
+# the return code from the failing command.  This is fine, but it
+# means that the build farm just shows "2" for failed tests, not the
+# number of tests that actually failed.  For more details we might
+# need to grovel through the log files to find a line saying how many
+# failed.
+
+
+set -e
+
+. "./shconfig"
+
+RUNSHFLAGS='-e'
+
+if [ -n "$loglevel" ] && [ "$loglevel" -gt 8 ]
+then
+    if set -x
+    then
+	# If it doesn't work the first time, don't keep trying.
+	RUNSHFLAGS="$RUNSHFLAGS -x"
+    fi
+fi
+
+echo "============================================================"
+echo "$0 running in `pwd`"
+echo "    rsync_bin=$rsync_bin"
+echo "    srcdir=$srcdir"
+
+if test ! -f $rsync_bin
+then
+    echo "rsync_bin $rsync_bin is not a file" >&2
+    exit 2
+fi
+
+if test ! -d $srcdir
+then
+    echo "srcdir $srcdir is not a directory" >&2
+    exit 2
+fi
+
+RSYNC="$rsync_bin"
+
+export rsync_bin RSYNC
+
+skipped=0
+missing=0
+passed=0
+failed=0
+
+# Prefix for scratch directory.  We create separate directories for
+# each test case, so that they can be left behind in case of failure
+# to aid investigation.
+scratchbase="`pwd`"/testtmp
+echo "    scratchbase=$scratchbase"
+
+suitedir="$srcdir/testsuite"
+
+export scratchdir suitedir
+
+prep_scratch() {
+    [ -d "$scratchdir" ] && rm -rf "$scratchdir"
+    mkdir "$scratchdir"
+    return 0
+}
+
+discard_scratch() {
+    [ -d "$scratchdir" ] && rm -rf "$scratchdir"
+    return 0
+}
+
+if [ "x$whichtests" = x ]
+then
+    whichtests="*.test"
+fi
+
+for testscript in $suitedir/$whichtests
+do
+    testbase=`echo $testscript | sed 's!.*/!!' | sed -e 's/.test\$//'`
+    scratchdir="$scratchbase.$testbase"
+
+    prep_scratch
+
+    set +e
+    sh $RUNSHFLAGS "$testscript" >"$scratchdir/test.log" 2>&1
+    result=$?
+    set -e
+
+    case $result in
+    0)
+	echo "PASS    $testbase"
+	passed=`expr $passed + 1`
+	discard_scratch
+	;;
+    77)
+	echo "SKIP    $testbase"
+	skipped=`expr $skipped + 1`
+	discard_scratch
+	;;
+    78)
+        # It failed, but we expected that.  don't dump out error logs, 
+	# because most users won't want to see them.  But do leave
+	# the working directory around.
+	echo "XFAIL   $testbase"
+	failed=`expr $failed + 1`
+	;;
+    *)
+	echo "FAIL    $testbase"
+	echo "----- $testbase failed: log follows"
+	cat "$scratchdir/test.log"
+	echo "----- $testbase log ends"
+	failed=`expr $failed + 1`
+	if [ "x$nopersist" = "xyes" ]
+	then
+	    exit 1
+	fi
+    esac
+done
+
+echo '------------------------------------------------------------'
+echo "----- overall results:"
+echo "      $passed passed"
+[ "$failed" -gt 0 ]  && echo "      $failed failed"
+[ "$skipped" -gt 0 ] && echo "      $skipped skipped"
+[ "$missing" -gt 0 ] && echo "      $missing missing"
+echo '------------------------------------------------------------'
+
+# OK, so expr exits with 0 if the result is neither null nor zero; and
+# 1 if the expression is null or zero.  This is the opposite of what
+# we want, and if we just call expr then this script will always fail,
+# because -e is set.
+
+result=`expr $failed + $missing || true`
+echo "overall result is $result"
+exit $result
--- a/sender.c
+++ b/sender.c
@@ -83,9 +83,9 @@ static struct sum_struct *receive_sums(int f)

 void send_files(struct file_list *flist,int f_out,int f_in)
 { 
-	int fd;
+	int fd = -1;
 	struct sum_struct *s;
-	struct map_struct *buf;
+	struct map_struct *buf = NULL;
 	STRUCT_STAT st;
 	char fname[MAXPATHLEN];  
 	int i;
@@ -93,12 +93,17 @@ void send_files(struct file_list *flist,int f_out,int f_in)
 	int phase = 0;
 	extern struct stats stats;		
 	struct stats initial_stats;
+	extern int write_batch;   /* dw */
+	extern int read_batch;    /* dw */
+	int checksums_match;   /* dw */
+	int buff_len;  /* dw */
+	char buff[CHUNK_SIZE];    /* dw */
+	int j;   /* dw */
+	int done;   /* dw */

 	if (verbose > 2)
 		rprintf(FINFO,"send_files starting\n");

-	setup_readbuffer(f_in);
-
 	while (1) {
 		int offset=0;

@@ -159,56 +164,109 @@ void send_files(struct file_list *flist,int f_out,int f_in)
 			rprintf(FERROR,"receive_sums failed\n");
 			return;
 		}
-	  
-		fd = do_open(fname, O_RDONLY, 0);
-		if (fd == -1) {
-			io_error = 1;
-			rprintf(FERROR,"send_files failed to open %s: %s\n",
-				fname,strerror(errno));
-			free_sums(s);
-			continue;
-		}
-	  
-		/* map the local file */
-		if (do_fstat(fd,&st) != 0) {
-			io_error = 1;
-			rprintf(FERROR,"fstat failed : %s\n",strerror(errno));
-			free_sums(s);
-			close(fd);
-			return;
-		}
-	  
-		if (st.st_size > 0) {
-			buf = map_file(fd,st.st_size);
-		} else {
-			buf = NULL;
-		}
-	  
-		if (verbose > 2)
-			rprintf(FINFO,"send_files mapped %s of size %.0f\n",
-				fname,(double)st.st_size);

-		write_int(f_out,i);
+		if (write_batch)
+		    write_batch_csum_info(&i,flist->count,s);
 	  
-		write_int(f_out,s->count);
-		write_int(f_out,s->n);
-		write_int(f_out,s->remainder);
+		if (!read_batch) {
+			fd = do_open(fname, O_RDONLY, 0);
+			if (fd == -1) {
+				io_error = 1;
+				rprintf(FERROR,"send_files failed to open %s: %s\n",
+					fname,strerror(errno));
+				free_sums(s);
+				continue;
+			}
+	  
+			/* map the local file */
+			if (do_fstat(fd,&st) != 0) {
+				io_error = 1;
+				rprintf(FERROR,"fstat failed : %s\n",strerror(errno));
+				free_sums(s);
+				close(fd);
+				return;
+			}
+	  
+			if (st.st_size > 0) {
+				buf = map_file(fd,st.st_size);
+			} else {
+				buf = NULL;
+			}
+	  
+			if (verbose > 2)
+				rprintf(FINFO,"send_files mapped %s of size %.0f\n",
+					fname,(double)st.st_size);
+
+			write_int(f_out,i);
+	  
+			if (write_batch)
+				write_batch_delta_file((char *)&i,sizeof(i));
+
+			write_int(f_out,s->count);
+			write_int(f_out,s->n);
+			write_int(f_out,s->remainder);
+		}
 	  
 		if (verbose > 2)
-			rprintf(FINFO,"calling match_sums %s\n",fname);
+			if (!read_batch)
+			    rprintf(FINFO,"calling match_sums %s\n",fname);
 	  
 		if (!am_server) {
 			log_transfer(file, fname+offset);
 		}

 		set_compression(fname);
-	  
-		match_sums(f_out,s,buf,st.st_size);

-		log_send(file, &initial_stats);
-	  	  
-		if (buf) unmap_file(buf);
-		close(fd);
+                if (read_batch) { /* dw */
+                   /* read checksums originally computed on sender side */
+                   read_batch_csum_info(i, s, &checksums_match);
+                   if (checksums_match) {
+                       read_batch_delta_file( (char *) &j, sizeof(int) );
+                       if (j != i) {    /* if flist index entries don't match*/ 
+                          rprintf(FINFO,"index mismatch in send_files\n");
+                          rprintf(FINFO,"read index = %d flist ndx = %d\n",j,i);
+                          close_batch_delta_file();
+                          close_batch_csums_file();
+                          exit_cleanup(1);
+                       }
+                       else {
+                         write_int(f_out,j);
+                         write_int(f_out,s->count);
+                         write_int(f_out,s->n);
+                         write_int(f_out,s->remainder);
+                         done=0;
+                         while (!done) {
+                            read_batch_delta_file( (char *) &buff_len, sizeof(int) );
+                            write_int(f_out,buff_len);
+                            if (buff_len == 0) {
+                               done = 1;
+                            }
+                            else {
+                               if (buff_len > 0) {
+                                  read_batch_delta_file(buff, buff_len);
+                                  write_buf(f_out,buff,buff_len);
+                               }
+                            }
+                         }  /* end while  */
+                         read_batch_delta_file( buff, MD4_SUM_LENGTH);
+                         write_buf(f_out, buff, MD4_SUM_LENGTH);
+
+                       }  /* j=i */
+                   } else {  /* not checksum match */
+                      rprintf (FINFO,"readbatch & checksums don't match\n");
+                      rprintf (FINFO,"filename=%s is being skipped\n",
+			       fname);
+                      continue;
+                   }
+                } else  {
+		    match_sums(f_out,s,buf,st.st_size);
+		    log_send(file, &initial_stats);
+                }
+
+		if (!read_batch) { /* dw */
+		    if (buf) unmap_file(buf);
+		    close(fd);
+		}
 	  
 		free_sums(s);
 	  
@@ -222,6 +280,11 @@ void send_files(struct file_list *flist,int f_out,int f_in)
 	match_report();

 	write_int(f_out,-1);
+	if (write_batch || read_batch) { /* dw */
+	    close_batch_csums_file();
+	    close_batch_delta_file();
+	}
+
 }


--- a/shconfig.in
+++ b/shconfig.in
@@ -0,0 +1,12 @@
+#! /bin/sh
+
+# config.sh.in 
+
+# This file is processed by config.status to produce config.status,
+# containing autoconf-determined values needed by the test scripts.
+
+ECHO_T="@ECHO_T@"
+ECHO_N="@ECHO_N@"
+ECHO_C="@ECHO_C@"
+
+export ECHO_T ECHO_N ECHO_C
--- a/socket.c
+++ b/socket.c
@@ -1,5 +1,9 @@
-/* 
-   Copyright (C) Andrew Tridgell 1998
+/* -*- c-file-style: "linux" -*-
+   
+   rsync -- fast file replication program
+   
+   Copyright (C) 1992-2001 by Andrew Tridgell <tridge@samba.org>
+   Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -16,31 +20,38 @@
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

-/*
-  socket functions used in rsync 
-
-  */
+/**
+ * @file socket.c
+ * 
+ * Socket functions used in rsync.
+ *
+ * This file is now converted to use the new-style getaddrinfo()
+ * interface, which supports IPv6 but is also supported on recent
+ * IPv4-only machines.  On systems that don't have that interface, we
+ * emulate it using the KAME implementation.
+ **/

 #include "rsync.h"


-/* establish a proxy connection on an open socket to a web roxy by using the CONNECT
-   method */
+/* Establish a proxy connection on an open socket to a web roxy by
+ * using the CONNECT method. */
 static int establish_proxy_connection(int fd, char *host, int port)
 {
 	char buffer[1024];
 	char *cp;

-	slprintf(buffer, sizeof(buffer), "CONNECT %s:%d HTTP/1.0\r\n\r\n", host, port);
-	if (write(fd, buffer, strlen(buffer)) != strlen(buffer)) {
-		rprintf(FERROR, "failed to write to proxy - %s\n",
+	snprintf(buffer, sizeof(buffer), "CONNECT %s:%d HTTP/1.0\r\n\r\n", host, port);
+	if (write(fd, buffer, strlen(buffer)) != (int) strlen(buffer)) {
+		rprintf(FERROR, "failed to write to proxy: %s\n",
 			strerror(errno));
 		return -1;
 	}

 	for (cp = buffer; cp < &buffer[sizeof(buffer) - 1]; cp++) {
 		if (read(fd, cp, 1) != 1) {
-			rprintf(FERROR, "failed to read from proxy\n");
+			rprintf(FERROR, "failed to read from proxy: %s\n",
+				strerror(errno));
 			return -1;
 		}
 		if (*cp == '\n')
@@ -71,7 +82,8 @@ static int establish_proxy_connection(int fd, char *host, int port)
 		for (cp = buffer; cp < &buffer[sizeof(buffer) - 1];
 		     cp++) {
 			if (read(fd, cp, 1) != 1) {
-				rprintf(FERROR, "failed to read from proxy\n");
+				rprintf(FERROR, "failed to read from proxy: %s\n",
+					strerror(errno));
 				return -1;
 			}
 			if (*cp == '\n')
@@ -86,24 +98,76 @@ static int establish_proxy_connection(int fd, char *host, int port)
 }


-/* open a socket to a tcp remote host with the specified port 
-   based on code from Warren
-   proxy support by Stephen Rothwell */
-int open_socket_out(char *host, int port, struct in_addr *address)
+/**
+ * Try to set the local address for a newly-created socket.  Return -1
+ * if this fails.
+ **/
+int try_bind_local(int s,
+		   int ai_family, int ai_socktype,
+		   const char *bind_address)
+{
+	int error;
+	struct addrinfo bhints, *bres_all, *r;
+
+	memset(&bhints, 0, sizeof(bhints));
+	bhints.ai_family = ai_family;
+	bhints.ai_socktype = ai_socktype;
+	bhints.ai_flags = AI_PASSIVE;
+	if ((error = getaddrinfo(bind_address, NULL, &bhints, &bres_all))) {
+		rprintf(FERROR, RSYNC_NAME ": getaddrinfo %s: %s\n",
+			bind_address, gai_strerror(error));
+		return -1;
+	}
+
+	for (r = bres_all; r; r = r->ai_next) {
+		if (bind(s, r->ai_addr, r->ai_addrlen) == -1)
+			continue;
+		return s;
+	}
+
+	/* no error message; there might be some problem that allows
+	 * creation of the socket but not binding, perhaps if the
+	 * machine has no ipv6 address of this name. */
+	return -1;
+}
+
+
+/**
+ * Open a socket to a tcp remote host with the specified port .
+ *
+ * Based on code from Warren.  Proxy support by Stephen Rothwell.
+ * getaddrinfo() rewrite contributed by KAME.net.
+ *
+ * Now that we support IPv6 we need to look up the remote machine's
+ * address first, using @p af_hint to set a preference for the type
+ * of address.  Then depending on whether it has v4 or v6 addresses we
+ * try to open a connection.
+ *
+ * The loop allows for machines with some addresses which may not be
+ * reachable, perhaps because we can't e.g. route ipv6 to that network
+ * but we can get ip4 packets through.
+ *
+ * @param bind_address Local address to use.  Normally NULL to bind
+ * the wildcard address.
+ *
+ * @param af_hint Address family, e.g. AF_INET or AF_INET6.
+ **/
+int open_socket_out(char *host, int port, const char *bind_address,
+		    int af_hint)
 {
 	int type = SOCK_STREAM;
-	struct sockaddr_in sock_out;
-	struct sockaddr_in sock;
-	int res;
-	struct hostent *hp;
+	int error;
+	int s;
+	struct addrinfo hints, *res0, *res;
+	char portbuf[10];
 	char *h;
-	unsigned p;
 	int proxied = 0;
 	char buffer[1024];
 	char *cp;

-	/* if we have a RSYNC_PROXY env variable then redirect our connetcion via a web proxy
-	   at the given address. The format is hostname:port */
+	/* if we have a RSYNC_PROXY env variable then redirect our
+	 * connetcion via a web proxy at the given address. The format
+	 * is hostname:port */
 	h = getenv("RSYNC_PROXY");
 	proxied = (h != NULL) && (*h != '\0');

@@ -111,113 +175,192 @@ int open_socket_out(char *host, int port, struct in_addr *address)
 		strlcpy(buffer, h, sizeof(buffer));
 		cp = strchr(buffer, ':');
 		if (cp == NULL) {
-			rprintf(FERROR, "invalid proxy specification\n");
+			rprintf(FERROR,
+				"invalid proxy specification: should be HOST:PORT\n");
 			return -1;
 		}
 		*cp++ = '\0';
-		p = atoi(cp);
+		strcpy(portbuf, cp);
 		h = buffer;
 	} else {
+		snprintf(portbuf, sizeof(portbuf), "%d", port);
 		h = host;
-		p = port;
 	}

-	res = socket(PF_INET, type, 0);
-	if (res == -1) {
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = af_hint;
+	hints.ai_socktype = type;
+	error = getaddrinfo(h, portbuf, &hints, &res0);
+	if (error) {
+		rprintf(FERROR, RSYNC_NAME ": getaddrinfo: %s %s: %s\n",
+			h, portbuf, gai_strerror(error));
 		return -1;
 	}

-	hp = gethostbyname(h);
-	if (!hp) {
-		rprintf(FERROR,"unknown host: %s\n", h);
-		close(res);
+	s = -1;
+	/* Try to connect to all addresses for this machine until we get
+	 * through.  It might e.g. be multi-homed, or have both IPv4 and IPv6
+	 * addresses.  We need to create a socket for each record, since the
+	 * address record tells us what protocol to use to try to connect. */
+	for (res = res0; res; res = res->ai_next) {
+		s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+		if (s < 0)
+			continue;
+
+		if (bind_address)
+			if (try_bind_local(s, res->ai_family, type,
+					   bind_address) == -1) {
+				close(s);
+				s = -1;
+				continue;
+			}
+
+		if (connect(s, res->ai_addr, res->ai_addrlen) < 0) {
+			close(s);
+			s = -1;
+			continue;
+		}
+		if (proxied &&
+		    establish_proxy_connection(s, host, port) != 0) {
+			close(s);
+			s = -1;
+			continue;
+		} else
+			break;
+	}
+	freeaddrinfo(res0);
+	if (s < 0) {
+		rprintf(FERROR, RSYNC_NAME ": failed to connect to %s: %s\n",
+			h, strerror(errno));
 		return -1;
 	}
-
-	memcpy(&sock_out.sin_addr, hp->h_addr, hp->h_length);
-	sock_out.sin_port = htons(p);
-	sock_out.sin_family = PF_INET;
-
-	if (address) {
-		sock.sin_addr = *address;
-		sock.sin_port = 0;
-		sock.sin_family = hp->h_addrtype;
-		bind(res, (struct sockaddr * ) &sock,sizeof(sock));
-	}
-
-	if (connect(res,(struct sockaddr *)&sock_out,sizeof(sock_out))) {
-		rprintf(FERROR,"failed to connect to %s - %s\n", h, strerror(errno));
-		close(res);
-		return -1;
-	}
-
-	if (proxied && establish_proxy_connection(res, host, port) != 0) {
-		close(res);
-		return -1;
-	}
-
-	return res;
+	return s;
 }


-/****************************************************************************
-open a socket of the specified type, port and address for incoming data
-****************************************************************************/
-static int open_socket_in(int type, int port, struct in_addr *address)
+/**
+ * Open an outgoing socket, but allow for it to be intercepted by
+ * $RSYNC_CONNECT_PROG, which will execute a program across a TCP
+ * socketpair rather than really opening a socket.
+ *
+ * We use this primarily in testing to detect TCP flow bugs, but not
+ * cause security problems by really opening remote connections.
+ *
+ * This is based on the Samba LIBSMB_PROG feature.
+ *
+ * @param bind_address Local address to use.  Normally NULL to get the stack default.
+ **/
+int open_socket_out_wrapped (char *host,
+			     int port,
+			     const char *bind_address,
+			     int af_hint)
 {
-	struct hostent *hp;
-	struct sockaddr_in sock;
-	char host_name[MAXHOSTNAMELEN];
-	int res;
-	int one=1;
+	char *prog;

-	/* get my host name */
-	if (gethostname(host_name, sizeof(host_name)) == -1) { 
-		rprintf(FERROR,"gethostname failed\n"); 
-		return -1; 
-	} 
-
-	/* get host info */
-	if ((hp = gethostbyname(host_name)) == 0) {
-		rprintf(FERROR,"gethostbyname: Unknown host %s\n",host_name);
-		return -1;
-	}
-  
-	memset((char *)&sock,0,sizeof(sock));
-	memcpy((char *)&sock.sin_addr,(char *)hp->h_addr, hp->h_length);
-	sock.sin_port = htons(port);
-	sock.sin_family = hp->h_addrtype;
-	if (address) {
-		sock.sin_addr = *address;
-	} else {
-		sock.sin_addr.s_addr = INADDR_ANY;
-	}
-	res = socket(hp->h_addrtype, type, 0);
-	if (res == -1) { 
-		rprintf(FERROR,"socket failed\n"); 
-		return -1; 
-	}
-
-	setsockopt(res,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
-
-	/* now we've got a socket - we need to bind it */
-	if (bind(res, (struct sockaddr * ) &sock,sizeof(sock)) == -1) { 
-		rprintf(FERROR,"bind failed on port %d\n", port);
-		close(res); 
-		return -1;
-	}
-
-	return res;
+	if ((prog = getenv ("RSYNC_CONNECT_PROG")) != NULL) 
+		return sock_exec (prog);
+	else 
+		return open_socket_out (host, port, bind_address,
+					af_hint);
 }


-/****************************************************************************
-determine if a file descriptor is in fact a socket
-****************************************************************************/
+
+/**
+ * Open a socket of the specified type, port and address for incoming data
+ *
+ * Try to be better about handling the results of getaddrinfo(): when
+ * opening an inbound socket, we might get several address results,
+ * e.g. for the machine's ipv4 and ipv6 name.  
+ * 
+ * If binding a wildcard, then any one of them should do.  If an address
+ * was specified but it's insufficiently specific then that's not our
+ * fault.  
+ * 
+ * However, some of the advertized addresses may not work because e.g. we
+ * don't have IPv6 support in the kernel.  In that case go on and try all
+ * addresses until one succeeds.
+ * 
+ * @param bind_address Local address to bind, or NULL to allow it to
+ * default.
+ **/
+static int open_socket_in(int type, int port, const char *bind_address,
+			  int af_hint)
+{
+	int one=1;
+	int s;
+	struct addrinfo hints, *all_ai, *resp;
+	char portbuf[10];
+	int error;
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = af_hint;
+	hints.ai_socktype = type;
+	hints.ai_flags = AI_PASSIVE;
+	snprintf(portbuf, sizeof(portbuf), "%d", port);
+	error = getaddrinfo(bind_address, portbuf, &hints, &all_ai);
+	if (error) {
+		rprintf(FERROR, RSYNC_NAME ": getaddrinfo: bind address %s: %s\n",
+			bind_address, gai_strerror(error));
+		return -1;
+	}
+
+	/* We may not be able to create the socket, if for example the
+	 * machine knows about IPv6 in the C library, but not in the
+	 * kernel. */
+	for (resp = all_ai; resp; resp = resp->ai_next) {
+		s = socket(resp->ai_family, resp->ai_socktype,
+			   resp->ai_protocol);
+
+		if (s == -1) 
+			/* See if there's another address that will work... */
+			continue;
+		
+		setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
+			   (char *)&one, sizeof one);
+		
+		/* now we've got a socket - we need to bind it */
+		if (bind(s, all_ai->ai_addr, all_ai->ai_addrlen) < 0) {
+			/* Nope, try another */
+			close(s);
+			continue;
+		}
+		
+		return s;
+	}
+
+	rprintf(FERROR, RSYNC_NAME ": open inbound socket on port %d failed: "
+		"%s\n",
+		port, 
+		strerror(errno));
+
+	freeaddrinfo(all_ai);
+	return -1; 
+}
+
+
+/*
+ * Determine if a file descriptor is in fact a socket
+ */
 int is_a_socket(int fd)
 {
-	int v,l;
+	int v;
+	socklen_t l;
 	l = sizeof(int);
+
+        /* Parameters to getsockopt, setsockopt etc are very
+         * unstandardized across platforms, so don't be surprised if
+         * there are compiler warnings on e.g. SCO OpenSwerver or AIX.
+         * It seems they all eventually get the right idea.
+         *
+         * Debian says: ``The fifth argument of getsockopt and
+         * setsockopt is in reality an int [*] (and this is what BSD
+         * 4.* and libc4 and libc5 have).  Some POSIX confusion
+         * resulted in the present socklen_t.  The draft standard has
+         * not been adopted yet, but glibc2 already follows it and
+         * also has socklen_t [*]. See also accept(2).''
+         *
+         * We now return to your regularly scheduled programming.  */
 	return(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&v, &l) == 0);
 }

@@ -225,10 +368,11 @@ int is_a_socket(int fd)
 void start_accept_loop(int port, int (*fn)(int ))
 {
 	int s;
-	extern struct in_addr socket_address;
+	extern char *bind_address;
+	extern int default_af_hint;

 	/* open an incoming socket */
-	s = open_socket_in(SOCK_STREAM, port, &socket_address);
+	s = open_socket_in(SOCK_STREAM, port, bind_address, default_af_hint);
 	if (s == -1)
 		exit_cleanup(RERR_SOCKETIO);

@@ -244,8 +388,13 @@ void start_accept_loop(int port, int (*fn)(int ))
 	while (1) {
 		fd_set fds;
 		int fd;
-		struct sockaddr addr;
-		int in_addrlen = sizeof(addr);
+		struct sockaddr_storage addr;
+		socklen_t addrlen = sizeof addr;
+
+		/* close log file before the potentially very long select so
+		   file can be trimmed by another process instead of growing
+		   forever */
+		log_close();

 		FD_ZERO(&fds);
 		FD_SET(s, &fds);
@@ -256,7 +405,7 @@ void start_accept_loop(int port, int (*fn)(int ))

 		if(!FD_ISSET(s, &fds)) continue;

-		fd = accept(s,&addr,&in_addrlen);
+		fd = accept(s,(struct sockaddr *)&addr,&addrlen);

 		if (fd == -1) continue;

@@ -271,7 +420,9 @@ void start_accept_loop(int port, int (*fn)(int ))

 		if (fork()==0) {
 			close(s);
-
+			/* open log file in child before possibly giving
+			   up privileges  */
+			log_open();
 			_exit(fn(fd));
 		}

@@ -377,7 +528,8 @@ void set_socket_options(int fd, char *options)
 		}
 		
 		if (ret != 0)
-			rprintf(FERROR,"Failed to set socket option %s\n",tok);
+			rprintf(FERROR, "failed to set socket option %s: %s\n", tok,
+				strerror(errno));
 	}

 	free(options);
@@ -414,114 +566,111 @@ void become_daemon(void)
 	}
 }

+
 /*******************************************************************
- return the IP addr of the client as a string 
+this is like socketpair but uses tcp. It is used by the Samba
+regression test code
+The function guarantees that nobody else can attach to the socket,
+or if they do that this function fails and the socket gets closed
+returns 0 on success, -1 on failure
+the resulting file descriptors are symmetrical
 ******************************************************************/
-char *client_addr(int fd)
+static int socketpair_tcp(int fd[2])
 {
-	struct sockaddr sa;
-	struct sockaddr_in *sockin = (struct sockaddr_in *) (&sa);
-	int     length = sizeof(sa);
-	static char addr_buf[100];
-	static int initialised;
-
-	if (initialised) return addr_buf;
-
-	initialised = 1;
-
-	if (getpeername(fd, &sa, &length)) {
-		exit_cleanup(RERR_SOCKETIO);
-	}
+	int listener;
+	struct sockaddr_in sock;
+	struct sockaddr_in sock2;
+	socklen_t socklen = sizeof(sock);
+	int connect_done = 0;
 	
-	strlcpy(addr_buf,(char *)inet_ntoa(sockin->sin_addr), sizeof(addr_buf));
-	return addr_buf;
-}
+	fd[0] = fd[1] = listener = -1;

+	memset(&sock, 0, sizeof(sock));
+	
+	if ((listener = socket(PF_INET, SOCK_STREAM, 0)) == -1) goto failed;

-/*******************************************************************
- return the DNS name of the client 
- ******************************************************************/
-char *client_name(int fd)
-{
-	struct sockaddr sa;
-	struct sockaddr_in *sockin = (struct sockaddr_in *) (&sa);
-	int     length = sizeof(sa);
-	static char name_buf[100];
-	struct hostent *hp;
-	char **p;
-	char *def = "UNKNOWN";
-	static int initialised;
+        memset(&sock2, 0, sizeof(sock2));
+#ifdef HAVE_SOCK_SIN_LEN
+        sock2.sin_len = sizeof(sock2);
+#endif
+        sock2.sin_family = PF_INET;

-	if (initialised) return name_buf;
+        bind(listener, (struct sockaddr *)&sock2, sizeof(sock2));

-	initialised = 1;
+	if (listen(listener, 1) != 0) goto failed;

-	strcpy(name_buf,def);
+	if (getsockname(listener, (struct sockaddr *)&sock, &socklen) != 0) goto failed;

-	if (getpeername(fd, &sa, &length)) {
-		exit_cleanup(RERR_SOCKETIO);
-	}
+	if ((fd[1] = socket(PF_INET, SOCK_STREAM, 0)) == -1) goto failed;

-	/* Look up the remote host name. */
-	if ((hp = gethostbyaddr((char *) &sockin->sin_addr,
-				sizeof(sockin->sin_addr),
-				AF_INET))) {
-		strlcpy(name_buf,(char *)hp->h_name,sizeof(name_buf));
-	}
+	set_nonblocking(fd[1]);

+	sock.sin_addr.s_addr = htonl(INADDR_LOOPBACK);

-	/* do a forward lookup as well to prevent spoofing */
-	hp = gethostbyname(name_buf);
-	if (!hp) {
-		strcpy(name_buf,def);
-		rprintf(FERROR,"reverse name lookup failed\n");
+	if (connect(fd[1],(struct sockaddr *)&sock,sizeof(sock)) == -1) {
+		if (errno != EINPROGRESS) goto failed;
 	} else {
-		for (p=hp->h_addr_list;*p;p++) {
-			if (memcmp(*p, &sockin->sin_addr, hp->h_length) == 0) {
-				break;
-			}
-		}
-		if (!*p) {
-			strcpy(name_buf,def);
-			rprintf(FERROR,"reverse name lookup mismatch - spoofed address?\n");
-		} 
+		connect_done = 1;
 	}

-	return name_buf;
+	if ((fd[0] = accept(listener, (struct sockaddr *)&sock, &socklen)) == -1) goto failed;
+
+	close(listener);
+	if (connect_done == 0) {
+		if (connect(fd[1],(struct sockaddr *)&sock,sizeof(sock)) != 0
+		    && errno != EISCONN) goto failed;
+	}
+
+	set_blocking (fd[1]);
+
+	/* all OK! */
+	return 0;
+
+ failed:
+	if (fd[0] != -1) close(fd[0]);
+	if (fd[1] != -1) close(fd[1]);
+	if (listener != -1) close(listener);
+	return -1;
 }

-/*******************************************************************
-convert a string to an IP address. The string can be a name or
-dotted decimal number
-  ******************************************************************/
-struct in_addr *ip_address(const char *str)
+
+
+/**
+ * Run a program on a local tcp socket, so that we can talk to it's
+ * stdin and stdout.  This is used to fake a connection to a daemon
+ * for testing -- not for the normal case of running SSH.
+ *
+ * @return a socket which is attached to a subprocess running
+ * "prog". stdin and stdout are attached. stderr is left attached to
+ * the original stderr
+ **/
+int sock_exec(const char *prog)
 {
-	static struct in_addr ret;
-	struct hostent *hp;
-
-	/* try as an IP address */
-	if (inet_aton(str, &ret) != 0) {
-		return &ret;
+	int fd[2];
+	
+	if (socketpair_tcp(fd) != 0) {
+		rprintf (FERROR, RSYNC_NAME
+			 ": socketpair_tcp failed (%s)\n",
+			 strerror(errno));
+		return -1;
 	}
-
-	/* otherwise assume it's a network name of some sort and use 
-	   gethostbyname */
-	if ((hp = gethostbyname(str)) == 0) {
-		rprintf(FERROR, "gethostbyname: Unknown host. %s\n",str);
-		return NULL;
+	if (fork() == 0) {
+		close(fd[0]);
+		close(0);
+		close(1);
+		dup(fd[1]);
+		dup(fd[1]);
+		if (verbose > 3) {
+			/* Can't use rprintf because we've forked. */
+			fprintf (stderr,
+				 RSYNC_NAME ": execute socket program \"%s\"\n",
+				 prog);
+		}
+		exit (system (prog));
 	}
-
-	if (hp->h_addr == NULL) {
-		rprintf(FERROR, "gethostbyname: host address is invalid for host %s\n",str);
-		return NULL;
-	}
-
-	if (hp->h_length > sizeof(ret)) {
-		rprintf(FERROR, "gethostbyname: host address is too large\n");
-		return NULL;
-	}
-
-	memcpy(&ret.s_addr, hp->h_addr, hp->h_length);
-
-	return(&ret);
+	close (fd[1]);
+	return fd[0];
 }
+
+
+
--- a/syscall.c
+++ b/syscall.c
@@ -113,11 +113,27 @@ int do_mkdir(char *fname, mode_t mode)
 	return mkdir(fname, mode);
 }

-char *do_mktemp(char *template)
+/* like mkstemp but forces permissions */
+int do_mkstemp(char *template, mode_t perms)
 {
-	if (dry_run) return NULL;
-	if (read_only) {errno = EROFS; return NULL;}
-	return mktemp(template);
+	if (dry_run) return -1;
+	if (read_only) {errno = EROFS; return -1;}
+
+#if defined(HAVE_SECURE_MKSTEMP) && defined(HAVE_FCHMOD)
+	{
+		int fd = mkstemp(template);
+		if (fd == -1) return -1;
+		if (fchmod(fd, perms) != 0) {
+			close(fd);
+			unlink(template);
+			return -1;
+		}
+		return fd;
+	}
+#else
+	if (!mktemp(template)) return -1;
+	return do_open(template, O_RDWR|O_EXCL|O_CREAT, perms);
+#endif
 }

 int do_stat(const char *fname, STRUCT_STAT *st)
--- a/test.sh
+++ b/test.sh
@@ -54,9 +54,13 @@ mkdir ${FROM}/emptydir
 ps ax > ${FROM}/pslist
 echo -n "This file has no trailing lf" > ${FROM}/nolf
 ln -s nolf ${FROM}/nolf-symlink
-cat /etc/inittab /etc/services /etc/resolv.conf > ${FROM}/${F1}
+
+# Gather some random text.  We need files that will exist and be
+# publicly readable on all platforms: hopefully this will work.
+cat /etc/*tab /etc/services /etc/*.conf /etc/*rc > ${FROM}/${F1}
+
 mkdir ${FROM}/dir
-cp ${FROM}/${F1} ${FROM}/dir
+cp ${FROM}/${F1} ${FROM}/dir/
 mkdir ${FROM}/dir/subdir
 mkdir ${FROM}/dir/subdir/subsubdir
 ls -ltr /etc > ${FROM}/dir/subdir/subsubdir/etc-ltr-list
--- a/testsuite/00-hello.test
+++ b/testsuite/00-hello.test
@@ -0,0 +1,5 @@
+#! /bin/sh
+
+echo $0 running
+
+"$rsync_bin" --version || exit 1
--- a/testsuite/README
+++ b/testsuite/README
@@ -0,0 +1,7 @@
+This directory contains automatic test cases for rsync.  You can run
+them yourself if you want, preferably by doing "make check" in the
+top-level source directory.  (Not implemented yet.)
+
+They also run automatically on the build farm, and you can see the
+results on http://build.samba.org/.  That's controlled by the file
+./runlist.
--- a/testsuite/daemon.test
+++ b/testsuite/daemon.test
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+# Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+
+# This program is distributable under the terms of the GNU GPL (see
+# COPYING)
+
+# We don't really want to start the server listening, because that
+# might interfere with the security or operation of the test machine.
+# Instead we use the fake-connect feature to dynamically assign a pair
+# of ports.
+
+# Having started the server we try some basic operations against it:
+
+# getting a list of module
+# listing files in a module
+# retrieving a module
+# uploading to a module
+# checking the log file
+# password authentication
+
+# TODO: Put the common framework in a common file, so that we can have
+# subtests fail and keep going.
+
+. "$suitedir/rsync.fns"
+
+build_rsyncd_conf
+
+RSYNC_CONNECT_PROG="$rsync_bin --config=$conf --daemon"
+export RSYNC_CONNECT_PROG
+
+$rsync_bin -v localhost::
--- a/testsuite/duplicates.test
+++ b/testsuite/duplicates.test
@@ -0,0 +1,57 @@
+#! /bin/sh
+
+# Copyright (C) 2002 by Martin Pool <mbp@samba.org>
+
+# This program is distributable under the terms of the GNU GPL see
+# COPYING).
+
+# Test rsync handling of duplicate filenames.  
+
+# It's quite possible that the user might specify the same source file
+# more than once on the command line, perhaps through shell variables
+# or wildcard expansions.  It might cause problems for rsync if the
+# same name occurred more than once in the file list, because we might
+# be trying to update the first copy and generate checksums for the
+# second copy at the same time.  See clean_flist() for the implementation.
+
+# We don't need to worry about hardlinks or symlinks.  Because we
+# always rename-and-replace the new copy, they can't affect us.
+
+# This test is not great, because it is a timing-dependent bug.
+
+. $srcdir/testsuite/rsync.fns
+
+echo "SKIP THIS FOR NOW; It's a known bug"
+exit 77
+
+set -x
+
+# Build some hardlinks
+
+fromdir="$scratchdir/from"
+todir="$scratchdir/to"
+
+mkdir "$fromdir"
+name1="$fromdir/name1"
+name2="$fromdir/name2"
+echo "This is the file" > "$name1"
+ln -s "$name1" "$name2" || fail "can't create symlink"
+
+outfile="$scratchdir/rsync.out"
+
+checkit "rsync -avv \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$fromdir/\" \"$todir/\"" "$fromdir" "$todir" \
+    | tee "$outfile"
+
+# Make sure each file was only copied once...
+if [ `grep -c '^name1$' "$outfile"` != 1 ]
+then
+    test_xfail "name1 was not copied exactly once"
+fi
+if [ `grep -c '^name2$' "$outfile"` != 1 ]
+then
+    test_xfail "name2 was not copied exactly once"
+fi
+
+exit 0
+# last [] may have failed but if we get here then we've won
+
--- a/testsuite/hands.test
+++ b/testsuite/hands.test
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+# Copyright (C) 1998,1999 Philip Hands <phil@hands.com>
+# Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+#
+# This program is distributable under the terms of the GNU GPL (see COPYING)
+
+. "$suitedir/rsync.fns"
+
+hands_setup
+
+# Main script starts here
+
+runtest "basic operation" 'checkit "$RSYNC -av ${FROM}/ ${TO}" ${FROM}/ ${TO}'
+
+ln ${FROM}/filelist ${FROM}/dir
+runtest "hard links" 'checkit "$RSYNC -avH ${FROM}/ ${TO}" ${FROM}/ ${TO}'
+
+rm ${TO}/text
+runtest "one file" 'checkit "$RSYNC -avH ${FROM}/ ${TO}" ${FROM}/ ${TO}'
+
+echo "extra line" >> ${TO}/text
+runtest "extra data" 'checkit "$RSYNC -avH ${FROM}/ ${TO}" ${FROM}/ ${TO}'
+
+cp ${FROM}/text ${TO}/ThisShouldGo
+runtest " --delete" 'checkit "$RSYNC --delete -avH ${FROM}/ ${TO}" ${FROM}/ ${TO}'
+
+checkforlogs ${LOG}.?
+
+hands_cleanup
--- a/testsuite/hardlinks.test
+++ b/testsuite/hardlinks.test
@@ -0,0 +1,38 @@
+#! /bin/sh
+
+# Copyright (C) 2002 by Martin Pool <mbp@samba.org>
+
+# This program is distributable under the terms of the GNU GPL (see
+# COPYING).
+
+# Test rsync handling of hardlinks.  By default (in 2.5.1) rsync does
+# not detect symlinks and they get split into different files.  If you
+# specify -H, then hard links are detected and recreated as hardlinks
+# on the other end.
+
+. $srcdir/testsuite/rsync.fns
+
+set -x
+
+# Build some hardlinks
+
+fromdir="$scratchdir/from"
+todir="$scratchdir/to"
+
+# TODO: Need to test whether hardlinks are possible on this OS/filesystem
+
+mkdir "$fromdir"
+name1="$fromdir/name1"
+name2="$fromdir/name2"
+name3="$fromdir/name3"
+name4="$fromdir/name4"
+echo "This is the file" > "$name1"
+ln "$name1" "$name2" || fail "Can't create hardlink"
+ln "$name2" "$name3" || fail "Can't create hardlink"
+cp "$name2" "$name4" || fail "Can't copy file"
+
+checkit "rsync -aHvv \"$fromdir/\" \"$todir/\"" "$fromdir" "$todir"
+
+exit 0
+# last [] may have failed but if we get here then we've won
+
--- a/testsuite/longdir.test
+++ b/testsuite/longdir.test
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# Copyright (C) 1998,1999 Philip Hands <phil@hands.com>
+# Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+#
+# This program is distributable under the terms of the GNU GPL (see COPYING)
+
+. "$suitedir/rsync.fns"
+
+# set -x
+
+hands_setup
+
+LONGDIR=${FROM}/This-is-a-directory-with-a-stupidly-long-name-created-in-an-attempt-to-provoke-an-error-found-in-2.0.11-that-should-hopefully-never-appear-again-if-this-test-does-its-job/This-is-a-directory-with-a-stupidly-long-name-created-in-an-attempt-to-provoke-an-error-found-in-2.0.11-that-should-hopefully-never-appear-again-if-this-test-does-its-job/This-is-a-directory-with-a-stupidly-long-name-created-in-an-attempt-to-provoke-an-error-found-in-2.0.11-that-should-hopefully-never-appear-again-if-this-test-does-its-job
+
+makepath ${LONGDIR}
+date > ${LONGDIR}/1
+ls -la / > ${LONGDIR}/2
+checkit "$RSYNC --delete -avH ${FROM}/ ${TO}" ${FROM}/ ${TO}
--- a/testsuite/rsync.fns
+++ b/testsuite/rsync.fns
@@ -0,0 +1,234 @@
+#! /bin/sh
+
+# Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+
+# General-purpose test functions for rsync.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version
+# 2 as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+TMP="$scratchdir"
+FROM=${TMP}/from
+TO=${TMP}/to
+LOG=${TMP}/log
+RSYNC="$rsync_bin"
+
+runtest() {
+    echo $ECHO_N "Test $1: $ECHO_C"
+    if eval "$2"
+    then
+	echo "${ECHO_T}	done."
+	return 0
+    else
+	echo "${ECHO_T} failed!"
+	return 1
+    fi
+}
+
+printmsg() {
+    echo "$1"
+}
+
+
+rsync_ls_lR() {
+    find "$@" -print | sort | xargs $TLS
+}
+
+
+####################
+# Build test directories TO and FROM, with FROM full of files.
+
+hands_setup() {
+    # Clean before creation
+    rm -rf $FROM
+    rm -rf $TO
+
+    [ -d $TMP ] || mkdir $TMP
+    [ -d $FROM ] || mkdir $FROM
+    [ -d $TO ] || mkdir $TO
+
+    # On some BSD systems, the umask affects the mode of created
+    # symlinks, even though the mode apparently has no effect on how
+    # the links behave in the future, and it cannot be changed using
+    # chmod!  rsync always sets its umask to 000 so that it can
+    # accurately recreate permissions, but this script is probably run
+    # with a different umask. 
+
+    # This causes a little problem that "ls -l" of the two will not be
+    # the same.  So, we need to set our umask before doing any creations.
+
+    # set up test data
+    touch ${FROM}/empty
+    mkdir ${FROM}/emptydir
+
+    # a hundred lines of text or so
+    rsync_ls_lR "${srcdir}" > ${FROM}/filelist
+
+    # This might fail on systems that don't have -n
+    echo $ECHO_N "This file has no trailing lf$ECHO_C" > ${FROM}/nolf
+    umask 0
+    ln -s nolf ${FROM}/nolf-symlink
+    umask 022
+
+    cat $srcdir/*.c > ${FROM}/text
+    mkdir ${FROM}/dir
+    cp ${FROM}/text ${FROM}/dir
+    mkdir ${FROM}/dir/subdir
+    mkdir ${FROM}/dir/subdir/subsubdir
+    ls -ltr /etc > ${FROM}/dir/subdir/subsubdir/etc-ltr-list
+    mkdir ${FROM}/dir/subdir/subsubdir2
+    ls -lt /bin > ${FROM}/dir/subdir/subsubdir2/bin-lt-list
+
+#      echo testing head:
+#      ls -lR ${srcdir} | head -10 || echo failed
+}
+
+
+hands_cleanup() {
+    rm -r "$TMP"
+}
+
+
+
+
+####################
+# Many machines do not have "mkdir -p", so we have to build up long paths.
+# How boring.  
+makepath () {
+    echo "        makepath $1"
+    p="$1"
+    (
+	# Absolut Unix.
+	if echo $p | grep '^/' >/dev/null
+	then
+	    cd /
+	fi
+    
+	# This will break if $1 contains a space.
+	for c in `echo $p | tr '/' ' '`
+	do 
+	    if [ -d "$c" ] || mkdir "$c" 
+	    then
+		cd "$c" || return $?
+	    else
+		echo "failed to create $c" >&2; return $?
+	    fi
+	done
+    )
+}
+
+
+
+###########################
+# Run a test (in '$1') then compare directories $2 and $3 to see if
+# there are any difference.  If there are, explain them.
+
+checkit() {
+    failed=
+
+    # We can just write everything to stdout/stderr, because the
+    # wrapper hides it unless there is a problem.
+
+    echo "Running: \"$1\""  
+    eval "$1" 
+    status=$?
+    if [ $status != 0 ]; then
+	failed="YES";
+    fi
+
+    echo "-------------"
+    echo "check how the files compare with diff:"
+    echo ""
+    diff -cr $2 $3 || failed=YES
+    echo "-------------"
+    echo "check how the directory listings compare with diff:"
+    echo ""
+    ( cd "$2" && rsync_ls_lR . ) > ${TMP}/ls-from 
+    ( cd "$3" && rsync_ls_lR . ) > ${TMP}/ls-to 
+    diff -c ${TMP}/ls-from ${TMP}/ls-to || failed=YES
+    if [ -z "${failed}" ] ; then
+	return 0
+    else
+	return 1
+    fi
+}
+
+
+# In fact, we need a more general feature of capturing all stderr/log files,
+# and dumping them if something goes wrong.
+
+checkforlogs() {
+  # skip it if we're under debian-test
+  if test -n "${Debian}" ; then return 0 ; fi
+
+  if [ -f $1 -a -s $1 ] ; then
+	echo "Failures have occurred.  $1 follows:" >&2
+	cat $1 >&2
+	exit 1
+  fi
+}
+
+
+build_rsyncd_conf() {
+    # Build an appropriate configuration file
+    conf="$scratchdir/test-rsyncd.conf"
+    echo "building configuration $conf"
+
+    port=2612
+    pidfile="$scratchdir/rsyncd.pid"
+    logfile="$scratchdir/rsyncd.log"
+
+    cat >$conf <<EOF
+# rsyncd configuration file autogenerated by $0
+
+pid file = $pidfile
+use chroot = no
+hosts allow = localhost, 127.0.0.1
+log file = $logfile
+
+[test-from] = $scratchdir/daemon-from/
+	read only = yes
+
+[test-to] = $scratchdir/daemon-to/
+	read only = no
+EOF
+}
+
+
+build_symlinks() {
+    fromdir="$scratchdir/from"
+    todir="$scratchdir/to"
+    mkdir "$fromdir"
+    date >"$fromdir/referent"
+    ln -s referent "$fromdir/relative"
+    ln -s "$fromdir/referent" "$fromdir/absolute"
+    ln -s nonexistent "$fromdir/dangling"
+    ln -s "$srcdir/rsync.c" "$fromdir/unsafe"
+}
+
+test_fail() {
+    echo "$@" >&2
+    exit 1
+}
+
+# It failed, but we expected that.  don't dump out error logs, 
+# because most users won't want to see them.  But do leave
+# the working directory around.
+test_xfail() {
+    echo "$@" >&2
+    exit 78
+}
+
+# be reproducible
+umask 077
--- a/testsuite/ssh-basic.test
+++ b/testsuite/ssh-basic.test
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+# Copyright (C) 1998,1999 Philip Hands <phil@hands.com>
+# Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+
+# This program is distributable under the terms of the GNU GPL (see
+# COPYING)
+
+# This script tests ssh, if possible.  It's called by runtests.sh
+
+. "$suitedir/rsync.fns"
+
+if [ "x$rsync_enable_ssh_tests" != xyes ]
+then
+    echo "Skipping SSH tests because \$rsync_enable_ssh_tests is not set"
+    exit 77
+fi
+
+if ! type ssh >/dev/null ; then
+    echo "Skipping SSH tests because ssh is not in the path"
+    exit 77
+fi
+
+if ! [ "`ssh -o'BatchMode yes' localhost echo yes`" = "yes" ]; then
+    echo "Skipping SSH tests because ssh conection to localhost not authorised"
+    exit 77
+fi
+
+runtest "ssh: basic test" 'checkit "$RSYNC -avH -e ssh --rsync-path=$RSYNC ${FROM}/ localhost:${TO}" ${FROM}/ ${TO}'
+
+mv ${TO}/${F1} ${TO}/ThisShouldGo
+
+runtest "ssh: renamed file" 'checkit "$RSYNC --delete -avH -e ssh --rsync-path=$RSYNC ${FROM}/ localhost:${TO}" ${FROM}/ ${TO}'
--- a/testsuite/symlink-ignore.test
+++ b/testsuite/symlink-ignore.test
@@ -0,0 +1,29 @@
+#! /bin/sh
+
+# Copyright (C) 2001 by Martin Pool <mbp@samba.org>
+
+# This program is distributable under the terms of the GNU GPL (see
+# COPYING).
+
+# Test rsync's somewhat over-featured symlink control: the default
+# behaviour is that symlinks should not be copied at all.
+
+. $srcdir/testsuite/rsync.fns
+
+set -x
+
+build_symlinks || test_fail "failed to build symlinks"
+
+# Copy recursively, but without -l or -L or -a, and all the symlinks
+# should be missing.
+"$rsync_bin" -r "$fromdir/" "$todir" || test_fail "rsync returned $?"
+
+[ -f "${todir}/referent" ] || test_fail "referent was not copied"
+[ -d "${todir}/from" ] && test_fail "extra level of directories"
+[ -L "${todir}/dangling" ] && test_fail "dangling symlink was copied"
+[ -L "${todir}/relative" ] && test_fail "relative symlink was copied" 
+[ -L "${todir}/absolute" ] && test_fail "absolute symlink was copied"
+
+exit 0
+# last [] may have failed but if we get here then we've one
+
--- a/tls.c
+++ b/tls.c
@@ -0,0 +1,141 @@
+/* -*- c-file-style: "linux" -*-
+ *
+ * Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/**
+ * \section tls
+ *
+ * tls -- Trivial recursive ls, for comparing two directories after
+ * running an rsync.
+ *
+ * The problem with using the system's own ls is that some features
+ * have little quirks that make directories look different when for
+ * our purposes they're the same -- for example, the BSD braindamage
+ * about setting the mode on symlinks based on your current umask.
+ *
+ * All the filenames must be given on the command line -- tls does not
+ * even read directories, let alone recurse.  The typical usage is
+ * "find|sort|xargs tls".
+ *
+ * The format is not exactly the same as any particular Unix ls(1).
+ *
+ * A key requirement for this program is that the output be "very
+ * reproducible."  So we mask away information that can accidentally
+ * change.
+ **/
+
+
+
+#include "rsync.h"
+
+#define PROGRAM "tls"
+
+/* These are to make syscall.o shut up. */
+int dry_run = 0;
+int read_only = 1;
+int list_only = 0;
+
+
+static void failed (char const *what,
+		    char const *where)
+{
+	fprintf (stderr, PROGRAM ": %s %s: %s\n",
+		 what, where, strerror (errno));
+	exit (1);
+}
+
+
+
+static void list_file (const char *fname)
+{
+	struct stat buf;
+	char permbuf[PERMSTRING_SIZE];
+	struct tm *mt;
+	char datebuf[50];
+	char linkbuf[4096];
+
+	if (do_lstat(fname, &buf) == -1)
+		failed ("stat", fname);
+
+	/* The size of anything but a regular file is probably not
+	 * worth thinking about. */
+	if (!S_ISREG(buf.st_mode))
+		buf.st_size = 0;
+
+	/* On some BSD platforms the mode bits of a symlink are
+	 * undefined.  Also it tends not to be possible to reset a
+	 * symlink's mtime, so we have to ignore it too. */
+	if (S_ISLNK(buf.st_mode)) {
+		int len;
+		buf.st_mode &= ~0777;
+		buf.st_mtime = (time_t)0;
+		buf.st_uid = buf.st_gid = 0;
+		strcpy(linkbuf, " -> ");
+		/* const-cast required for silly UNICOS headers */
+		len = readlink((char *) fname, linkbuf+4, sizeof(linkbuf) - 4);
+		if (len == -1) 
+			failed("readlink", fname);
+		else
+			/* it's not nul-terminated */
+			linkbuf[4+len] = 0;
+	} else {
+		linkbuf[0] = 0;
+	}
+
+	permstring(permbuf, buf.st_mode);
+
+	if (buf.st_mtime) {
+		mt = gmtime(&buf.st_mtime);
+		
+		sprintf(datebuf, "%04d-%02d-%02d %02d:%02d:%02d",
+			mt->tm_year + 1900,
+			mt->tm_mon + 1,
+			mt->tm_mday,
+			mt->tm_hour,
+			mt->tm_min,
+			mt->tm_sec);
+	} else {
+		strcpy(datebuf, "                   ");
+	}
+	
+	/* TODO: Perhaps escape special characters in fname? */
+	
+	
+	/* NB: need to pass size as a double because it might be be
+	 * too large for a long. */
+	printf("%s %12.0f %6d.%-6d %6d %s %s%s\n",
+	       permbuf, (double) buf.st_size,
+	       buf.st_uid, buf.st_gid,
+	       buf.st_nlink,
+	       datebuf, fname, linkbuf);
+}
+
+
+int main (int argc, char *argv[])
+{
+	if (argc < 2) {
+		fprintf (stderr, "usage: " PROGRAM " DIR ...\n"
+			 "Trivial file listing program for portably checking rsync\n");
+		return 1;
+	}
+
+	for (argv++; *argv; argv++) {
+		list_file (*argv);
+	}
+
+	return 0;
+}
--- a/token.c
+++ b/token.c
@@ -90,18 +90,29 @@ static int simple_recv_token(int f,char **data)
 static void simple_send_token(int f,int token,
 			      struct map_struct *buf,OFF_T offset,int n)
 {
+	extern int write_batch; /* dw */
+	int hold_int; /* dw */
+
 	if (n > 0) {
 		int l = 0;
 		while (l < n) {
 			int n1 = MIN(CHUNK_SIZE,n-l);
 			write_int(f,n1);
 			write_buf(f,map_ptr(buf,offset+l,n1),n1);
+			if (write_batch) {
+			    write_batch_delta_file( (char *) &n1, sizeof(int) );
+			    write_batch_delta_file(map_ptr(buf,offset+l,n1),n1);
+			}
 			l += n1;
 		}
 	}
 	/* a -2 token means to send data only and no token */
 	if (token != -2) {
 		write_int(f,-(token+1));
+		if (write_batch) {
+		    hold_int = -(token+1);
+		    write_batch_delta_file( (char *) &hold_int, sizeof(int) );
+		}
 	}
 }

@@ -134,6 +145,8 @@ send_deflated_token(int f, int token,
 {
 	int n, r;
 	static int init_done, flush_pending;
+	extern int write_batch;  /* dw */
+	char temp_byte;   /* dw */

 	if (last_token == -1) {
 		/* initialization */
@@ -166,13 +179,27 @@ send_deflated_token(int f, int token,
 		n = last_token - run_start;
 		if (r >= 0 && r <= 63) {
 			write_byte(f, (n==0? TOKEN_REL: TOKENRUN_REL) + r);
+			if (write_batch) { /* dw */
+			    temp_byte = (char)( (n==0? TOKEN_REL: TOKENRUN_REL) + r);
+			    write_batch_delta_file(&temp_byte,sizeof(char));
+			}
 		} else {
 			write_byte(f, (n==0? TOKEN_LONG: TOKENRUN_LONG));
 			write_int(f, run_start);
+			if (write_batch) { /* dw */
+			    temp_byte = (char)(n==0? TOKEN_LONG: TOKENRUN_LONG);
+			    write_batch_delta_file(&temp_byte,sizeof(temp_byte));
+			    write_batch_delta_file((char *)&run_start,sizeof(run_start));
+			}
 		}
 		if (n != 0) {
 			write_byte(f, n);
 			write_byte(f, n >> 8);
+			if (write_batch) { /* dw */
+			    write_batch_delta_file((char *)&n,sizeof(char));
+			    temp_byte = (char) n >> 8;
+			    write_batch_delta_file(&temp_byte,sizeof(temp_byte));
+			}
 		}
 		last_run_end = last_token;
 		run_start = token;
@@ -231,6 +258,8 @@ send_deflated_token(int f, int token,
 					obuf[0] = DEFLATED_DATA + (n >> 8);
 					obuf[1] = n;
 					write_buf(f, obuf, n+2);
+					if (write_batch) /* dw */
+					    write_batch_delta_file(obuf,n+2);
 				}
 			}
 		} while (nb != 0 || tx_strm.avail_out == 0);
@@ -240,6 +269,10 @@ send_deflated_token(int f, int token,
 	if (token == -1) {
 		/* end of file - clean up */
 		write_byte(f, END_FLAG);
+		if (write_batch) { /* dw */
+		    temp_byte = END_FLAG;
+		    write_batch_delta_file((char *)&temp_byte,sizeof(temp_byte));
+		}

 	} else if (token != -2) {
 		/* add the data in the current block to the compressor's
--- a/util.c
+++ b/util.c
@@ -26,15 +26,30 @@

 extern int verbose;

-/* create a file descriptor - like pipe() but use socketpair if
-   possible (because of blocking issues on pipes */
-int fd_pair(int fd[2])
+/****************************************************************************
+Set a fd into nonblocking mode. Uses POSIX O_NONBLOCK if available,
+else
+if SYSV use O_NDELAY
+if BSD use FNDELAY
+****************************************************************************/
+int set_nonblocking(int fd)
 {
-#if HAVE_SOCKETPAIR
-	return socketpair(AF_UNIX, SOCK_STREAM, 0, fd);
+	int val;
+#ifdef O_NONBLOCK
+#define FLAG_TO_SET O_NONBLOCK
 #else
-	return pipe(fd);
+#ifdef SYSV
+#define FLAG_TO_SET O_NDELAY
+#else /* BSD */
+#define FLAG_TO_SET FNDELAY
 #endif
+#endif
+	
+	if((val = fcntl(fd, F_GETFL, 0)) == -1)
+		return -1;
+	val |= FLAG_TO_SET;
+	return fcntl( fd, F_SETFL, val);
+#undef FLAG_TO_SET
 }


@@ -45,8 +60,8 @@ int piped_child(char **command,int *f_in,int *f_out)
  int to_child_pipe[2];
  int from_child_pipe[2];

-  if (fd_pair(to_child_pipe) < 0 ||
-      fd_pair(from_child_pipe) < 0) {
+  if (pipe(to_child_pipe) < 0 ||
+      pipe(from_child_pipe) < 0) {
    rprintf(FERROR,"pipe: %s\n",strerror(errno));
    exit_cleanup(RERR_IPC);
  }
@@ -86,6 +101,9 @@ int piped_child(char **command,int *f_in,int *f_out)
  *f_in = from_child_pipe[0];
  *f_out = to_child_pipe[1];

+  set_nonblocking(*f_in);
+  set_nonblocking(*f_out);
+  
  return pid;
 }

@@ -95,8 +113,8 @@ int local_child(int argc, char **argv,int *f_in,int *f_out)
 	int to_child_pipe[2];
 	int from_child_pipe[2];

-	if (fd_pair(to_child_pipe) < 0 ||
-	    fd_pair(from_child_pipe) < 0) {
+	if (pipe(to_child_pipe) < 0 ||
+	    pipe(from_child_pipe) < 0) {
 		rprintf(FERROR,"pipe: %s\n",strerror(errno));
 		exit_cleanup(RERR_IPC);
 	}
@@ -211,7 +229,7 @@ int create_directory_path(char *fname)

   derived from GNU C's cccp.c.
 */
-static int full_write(int desc, char *ptr, int len)
+static int full_write(int desc, char *ptr, size_t len)
 {
 	int total_written;
 	
@@ -237,11 +255,11 @@ static int full_write(int desc, char *ptr, int len)
   for an error.  

   derived from GNU C's cccp.c. */
-static int safe_read(int desc, char *ptr, int len)
+static int safe_read(int desc, char *ptr, size_t len)
 {
 	int n_chars;
 
-	if (len <= 0)
+	if (len == 0)
 		return len;
 
 #ifdef EINTR
@@ -379,6 +397,17 @@ int robust_rename(char *from, char *to)
 		return -1;
 	return do_rename(from, to);
 #endif
+    }
+
+
+/* sleep for a while via select */
+void u_sleep(int usec)
+{
+	struct timeval tv;
+
+	tv.tv_sec = 0;
+	tv.tv_usec = usec;
+	select(0, NULL, NULL, NULL, &tv);
 }


@@ -779,12 +808,12 @@ int u_strcmp(const char *cs1, const char *cs2)

 static OFF_T last_ofs;

-void end_progress(OFF_T size)
+void end_progress(void)
 {
 	extern int do_progress, am_server;

 	if (do_progress && !am_server) {
-		rprintf(FINFO,"%.0f (100%%)\n", (double)size);
+		rprintf(FINFO,"\n");
 	}
 	last_ofs = 0;
 }
@@ -871,15 +900,3 @@ char *timestring(time_t t)
 	return(TimeBuf);
 }

-
-/****************************************************************************
- like waitpid but does the WEXITSTATUS
-****************************************************************************/
-#ifndef WEXITSTATUS
-#define	WEXITSTATUS(stat)	((int)(((stat)>>8)&0xFF))
-#endif
-void wait_process(pid_t pid, int *status)
-{
-	waitpid(pid, status, 0);
-	*status = WEXITSTATUS(*status);
-}
--- a/version.h
+++ b/version.h
@@ -1 +1 @@
-#define VERSION "2.4.1"
+#define VERSION "2.3.3"
--- a/zlib/.cvsignore
+++ b/zlib/.cvsignore
@@ -0,0 +1 @@
+dummy