Move some code from util.c to util2.c and add sum_as_hex().

Makefile.in

@@ -34,7 +34,7 @@ LIBOBJ=lib/wildmatch.o lib/compat.o lib/snprintf.o lib/mdfour.o lib/md5.o \
 zlib_OBJS=zlib/deflate.o zlib/inffast.o zlib/inflate.o zlib/inftrees.o \
 	zlib/trees.o zlib/zutil.o zlib/adler32.o zlib/compress.o zlib/crc32.o
 OBJS1=flist.o 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 delete.o
+	util.o util2.o main.o checksum.o match.o syscall.o log.o backup.o delete.o
 OBJS2=options.o io.o compat.o hlink.o token.o uidlist.o socket.o hashtable.o \
 	fileio.o batch.o clientname.o chmod.o acls.o xattrs.o
 OBJS3=progress.o pipe.o

log.c

@@ -683,23 +683,14 @@ static void log_formatted(enum logcode code, const char *format, const char *op,
 			if (protocol_version >= 30
 			 && (iflags & ITEM_TRANSFER
 			  || (always_checksum && S_ISREG(file->mode)))) {
-				int i, x1, x2;
 				const char *sum = iflags & ITEM_TRANSFER
 						? sender_file_sum : F_SUM(file);
-				c = buf2 + checksum_len*2;
-				*c = '\0';
-				for (i = checksum_len; --i >= 0; ) {
-					x1 = CVAL(sum, i);
-					x2 = x1 >> 4;
-					x1 &= 0xF;
-					*--c = x1 <= 9 ? x1 + '0' : x1 + 'a' - 10;
-					*--c = x2 <= 9 ? x2 + '0' : x2 + 'a' - 10;
-				}
+				n = sum_as_hex(sum);
 			} else {
 				memset(buf2, ' ', checksum_len*2);
 				buf2[checksum_len*2] = '\0';
+				n = buf2;
 			}
-			n = buf2;
 			break;
 		case 'i':
 			if (iflags & ITEM_DELETED) {

util.c

@@ -114,18 +114,6 @@ void print_child_argv(const char *prefix, char **cmd)
 	rprintf(FCLIENT, " (%d args)\n", cnt);
 }
 
-NORETURN void out_of_memory(const char *str)
-{
-	rprintf(FERROR, "ERROR: out of memory in %s [%s]\n", str, who_am_i());
-	exit_cleanup(RERR_MALLOC);
-}
-
-NORETURN void overflow_exit(const char *str)
-{
-	rprintf(FERROR, "ERROR: buffer overflow in %s [%s]\n", str, who_am_i());
-	exit_cleanup(RERR_MALLOC);
-}
-
 /* This returns 0 for success, 1 for a symlink if symlink time-setting
  * is not possible, or -1 for any other error. */
 int set_modtime(const char *fname, time_t modtime, uint32 mod_nsec, mode_t mode)
@@ -1305,36 +1293,6 @@ char *timestring(time_t t)
 	return TimeBuf;
 }
 
-/**
- * Sleep for a specified number of milliseconds.
- *
- * Always returns TRUE.  (In the future it might return FALSE if
- * interrupted.)
- **/
-int msleep(int t)
-{
-	int tdiff = 0;
-	struct timeval tval, t1, t2;
-
-	gettimeofday(&t1, NULL);
-
-	while (tdiff < t) {
-		tval.tv_sec = (t-tdiff)/1000;
-		tval.tv_usec = 1000*((t-tdiff)%1000);
-
-		errno = 0;
-		select(0,NULL,NULL, NULL, &tval);
-
-		gettimeofday(&t2, NULL);
-		if (t2.tv_sec < t1.tv_sec)
-			t1 = t2; /* Time went backwards, so start over. */
-		tdiff = (t2.tv_sec - t1.tv_sec)*1000 +
-			(t2.tv_usec - t1.tv_usec)/1000;
-	}
-
-	return True;
-}
-
 /* Determine if two time_t values are equivalent (either exact, or in
  * the modification timestamp window established by --modify-window).
  *
@@ -1392,24 +1350,6 @@ int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
 }
 #endif
 
-#define MALLOC_MAX 0x40000000
-
-void *_new_array(unsigned long num, unsigned int size, int use_calloc)
-{
-	if (num >= MALLOC_MAX/size)
-		return NULL;
-	return use_calloc ? calloc(num, size) : malloc(num * size);
-}
-
-void *_realloc_array(void *ptr, unsigned int size, size_t num)
-{
-	if (num >= MALLOC_MAX/size)
-		return NULL;
-	if (!ptr)
-		return malloc(size * num);
-	return realloc(ptr, size * num);
-}
-
 /* Take a filename and filename length and return the most significant
  * filename suffix we can find.  This ignores suffixes such as "~",
  * ".bak", ".orig", ".~1~", etc. */

util2.c

@@ -0,0 +1,109 @@
+/*
+ * Utility routines used in rsync.
+ *
+ * Copyright (C) 1996-2000 Andrew Tridgell
+ * Copyright (C) 1996 Paul Mackerras
+ * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
+ * Copyright (C) 2003-2013 Wayne Davison
+ *
+ * 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 3 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, visit the http://fsf.org website.
+ */
+
+#include "rsync.h"
+#include "ifuncs.h"
+#include "itypes.h"
+#include "inums.h"
+
+extern int checksum_len;
+
+/**
+ * Sleep for a specified number of milliseconds.
+ *
+ * Always returns TRUE.  (In the future it might return FALSE if
+ * interrupted.)
+ **/
+int msleep(int t)
+{
+	int tdiff = 0;
+	struct timeval tval, t1, t2;
+
+	gettimeofday(&t1, NULL);
+
+	while (tdiff < t) {
+		tval.tv_sec = (t-tdiff)/1000;
+		tval.tv_usec = 1000*((t-tdiff)%1000);
+
+		errno = 0;
+		select(0,NULL,NULL, NULL, &tval);
+
+		gettimeofday(&t2, NULL);
+		if (t2.tv_sec < t1.tv_sec)
+			t1 = t2; /* Time went backwards, so start over. */
+		tdiff = (t2.tv_sec - t1.tv_sec)*1000 +
+			(t2.tv_usec - t1.tv_usec)/1000;
+	}
+
+	return True;
+}
+
+#define MALLOC_MAX 0x40000000
+
+void *_new_array(unsigned long num, unsigned int size, int use_calloc)
+{
+	if (num >= MALLOC_MAX/size)
+		return NULL;
+	return use_calloc ? calloc(num, size) : malloc(num * size);
+}
+
+void *_realloc_array(void *ptr, unsigned int size, size_t num)
+{
+	if (num >= MALLOC_MAX/size)
+		return NULL;
+	if (!ptr)
+		return malloc(size * num);
+	return realloc(ptr, size * num);
+}
+
+const char *sum_as_hex(const char *sum)
+{
+	static char buf[MAX_DIGEST_LEN*2+1];
+	int i, x1, x2;
+	char *c = buf + checksum_len*2;
+
+	assert(c - buf < (int)sizeof buf);
+
+	*c = '\0';
+
+	for (i = checksum_len; --i >= 0; ) {
+		x1 = CVAL(sum, i);
+		x2 = x1 >> 4;
+		x1 &= 0xF;
+		*--c = x1 <= 9 ? x1 + '0' : x1 + 'a' - 10;
+		*--c = x2 <= 9 ? x2 + '0' : x2 + 'a' - 10;
+	}
+
+	return buf;
+}
+
+NORETURN void out_of_memory(const char *str)
+{
+	rprintf(FERROR, "ERROR: out of memory in %s [%s]\n", str, who_am_i());
+	exit_cleanup(RERR_MALLOC);
+}
+
+NORETURN void overflow_exit(const char *str)
+{
+	rprintf(FERROR, "ERROR: buffer overflow in %s [%s]\n", str, who_am_i());
+	exit_cleanup(RERR_MALLOC);
+}