| | 1 | /* |
| | 2 | Copyright (C) Andrew Tridgell 1996 |
| | 3 | Copyright (C) Paul Mackerras 1996 |
| | 4 | |
| | 5 | This program is free software; you can redistribute it and/or modify |
| | 6 | it under the terms of the GNU General Public License as published by |
| | 7 | the Free Software Foundation; either version 2 of the License, or |
| | 8 | (at your option) any later version. |
| | 9 | |
| | 10 | This program is distributed in the hope that it will be useful, |
| | 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 13 | GNU General Public License for more details. |
| | 14 | |
| | 15 | You should have received a copy of the GNU General Public License |
| | 16 | along with this program; if not, write to the Free Software |
| | 17 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| | 18 | */ |
| | 19 | |
| | 20 | /** |
| | 21 | * @file compat.c |
| | 22 | * |
| | 23 | * Compatibility routines for older rsync protocol versions. |
| | 24 | **/ |
| | 25 | |
| | 26 | #include "rsync.h" |
| | 27 | |
| | 28 | extern int am_server; |
| | 29 | |
| | 30 | extern int preserve_links; |
| | 31 | extern int preserve_perms; |
| | 32 | extern int preserve_devices; |
| | 33 | extern int preserve_uid; |
| | 34 | extern int preserve_gid; |
| | 35 | extern int preserve_times; |
| | 36 | extern int always_checksum; |
| | 37 | extern int checksum_seed; |
| | 38 | |
| | 39 | |
| | 40 | extern int remote_version; |
| | 41 | extern int verbose; |
| | 42 | |
| | 43 | extern int read_batch; /* dw */ |
| | 44 | extern int write_batch; /* dw */ |
| | 45 | |
| | 46 | void setup_protocol(int f_out,int f_in) |
| | 47 | { |
| | 48 | if (remote_version == 0) { |
| | 49 | if (am_server) { |
| | 50 | remote_version = read_int(f_in); |
| | 51 | write_int(f_out,PROTOCOL_VERSION); |
| | 52 | } else { |
| | 53 | write_int(f_out,PROTOCOL_VERSION); |
| | 54 | remote_version = read_int(f_in); |
| | 55 | } |
| | 56 | } |
| | 57 | |
| | 58 | if (remote_version < MIN_PROTOCOL_VERSION || |
| | 59 | remote_version > MAX_PROTOCOL_VERSION) { |
| | 60 | rprintf(FERROR,"protocol version mismatch - is your shell clean?\n"); |
| | 61 | rprintf(FERROR,"(see the rsync man page for an explanation)\n"); |
| | 62 | exit_cleanup(RERR_PROTOCOL); |
| | 63 | } |
| | 64 | |
| | 65 | if (remote_version >= 12) { |
| | 66 | if (am_server) { |
| | 67 | if (read_batch || write_batch) /* dw */ |
| | 68 | checksum_seed = 32761; |
| | 69 | else |
| | 70 | checksum_seed = time(NULL); |
| | 71 | write_int(f_out,checksum_seed); |
| | 72 | } else { |
| | 73 | checksum_seed = read_int(f_in); |
| | 74 | } |
| | 75 | } |
| | 76 | |
| | 77 | checksum_init(); |
| | 78 | } |
| | 79 | |
Matt McCutchen's Web Site / rsync / rsync.git / blame_incremental