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4fe159a8 AT |
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 | /* compatability routines for older rsync protocol versions */ | |
21 | ||
22 | #include "rsync.h" | |
23 | ||
aae43eb3 AT |
24 | extern int am_server; |
25 | ||
4fe159a8 AT |
26 | extern int preserve_links; |
27 | extern int preserve_perms; | |
28 | extern int preserve_devices; | |
29 | extern int preserve_uid; | |
30 | extern int preserve_gid; | |
31 | extern int preserve_times; | |
32 | extern int always_checksum; | |
aae43eb3 | 33 | extern int checksum_seed; |
4fe159a8 AT |
34 | |
35 | ||
36 | extern int remote_version; | |
76076c4b | 37 | extern int verbose; |
4fe159a8 | 38 | |
aae43eb3 | 39 | void setup_protocol(int f_out,int f_in) |
4fe159a8 | 40 | { |
13c5fc0e AT |
41 | if (remote_version == 0) { |
42 | if (am_server) { | |
43 | remote_version = read_int(f_in); | |
44 | write_int(f_out,PROTOCOL_VERSION); | |
13c5fc0e AT |
45 | } else { |
46 | write_int(f_out,PROTOCOL_VERSION); | |
13c5fc0e AT |
47 | remote_version = read_int(f_in); |
48 | } | |
49 | } | |
aae43eb3 | 50 | |
13c5fc0e AT |
51 | if (remote_version < MIN_PROTOCOL_VERSION || |
52 | remote_version > MAX_PROTOCOL_VERSION) { | |
53 | rprintf(FERROR,"protocol version mismatch - is your shell clean?\n"); | |
d310a212 | 54 | rprintf(FERROR,"(see the rsync man page for an explanation)\n"); |
65417579 | 55 | exit_cleanup(RERR_PROTOCOL); |
13c5fc0e AT |
56 | } |
57 | ||
58 | if (verbose > 2) | |
59 | rprintf(FINFO, "local_version=%d remote_version=%d\n", | |
60 | PROTOCOL_VERSION, remote_version); | |
61 | ||
62 | if (remote_version >= 12) { | |
63 | if (am_server) { | |
64 | checksum_seed = time(NULL); | |
65 | write_int(f_out,checksum_seed); | |
66 | } else { | |
67 | checksum_seed = read_int(f_in); | |
68 | } | |
69 | } | |
70 | ||
71 | checksum_init(); | |
4fe159a8 AT |
72 | } |
73 |