79 lines
2.1 KiB
C
79 lines
2.1 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.
|
|
*/
|
|
|
|
/**
|
|
* @file compat.c
|
|
*
|
|
* Compatibility routines for older rsync protocol versions.
|
|
**/
|
|
|
|
#include "rsync.h"
|
|
|
|
extern int am_server;
|
|
|
|
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;
|
|
|
|
extern int read_batch; /* dw */
|
|
extern int write_batch; /* dw */
|
|
|
|
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);
|
|
} else {
|
|
write_int(f_out,PROTOCOL_VERSION);
|
|
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");
|
|
rprintf(FERROR,"(see the rsync man page for an explanation)\n");
|
|
exit_cleanup(RERR_PROTOCOL);
|
|
}
|
|
if (remote_version < OLD_PROTOCOL_VERSION)
|
|
rprintf(FINFO,"%s is very old version of rsync, upgrade recommended.\n",
|
|
am_server ? "Server" : "Client");
|
|
|
|
if (am_server) {
|
|
if (read_batch || write_batch) /* dw */
|
|
checksum_seed = 32761;
|
|
else
|
|
checksum_seed = time(NULL);
|
|
write_int(f_out,checksum_seed);
|
|
} else {
|
|
checksum_seed = read_int(f_in);
|
|
}
|
|
}
|
|
|