Files
rsync/compat.c
Andrew Tridgell 13c5fc0e14 save one round trip (version swapping) for daemon.
This is an imcompatible change in the socket protocol. You get "is
your shell clean" if using an older rsync client
1998-05-13 08:58:07 +00:00

77 lines
1.9 KiB
C

/*
Copyright (C) Andrew Tridgell 1996
Copyright (C) Paul Mackerras 1996
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.
*/
/* compatability routines for older rsync protocol versions */
#include "rsync.h"
extern int am_server;
extern int csum_length;
extern int preserve_links;
extern int preserve_perms;
extern int preserve_devices;
extern int preserve_uid;
extern int preserve_gid;
extern int preserve_times;
extern int always_checksum;
extern int checksum_seed;
extern int remote_version;
extern int verbose;
void setup_protocol(int f_out,int f_in)
{
if (remote_version == 0) {
if (am_server) {
remote_version = read_int(f_in);
write_int(f_out,PROTOCOL_VERSION);
write_flush(f_out);
} else {
write_int(f_out,PROTOCOL_VERSION);
write_flush(f_out);
remote_version = read_int(f_in);
}
}
if (remote_version < MIN_PROTOCOL_VERSION ||
remote_version > MAX_PROTOCOL_VERSION) {
rprintf(FERROR,"protocol version mismatch - is your shell clean?\n");
exit_cleanup(1);
}
if (verbose > 2)
rprintf(FINFO, "local_version=%d remote_version=%d\n",
PROTOCOL_VERSION, remote_version);
if (remote_version >= 12) {
if (am_server) {
checksum_seed = time(NULL);
write_int(f_out,checksum_seed);
} else {
checksum_seed = read_int(f_in);
}
}
checksum_init();
}