Commit | Line | Data |
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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 | ||
d1f83bcc MP |
20 | /** |
21 | * @file compat.c | |
22 | * | |
23 | * Compatibility routines for older rsync protocol versions. | |
24 | **/ | |
4fe159a8 AT |
25 | |
26 | #include "rsync.h" | |
27 | ||
aae43eb3 AT |
28 | extern int am_server; |
29 | ||
4fe159a8 AT |
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; | |
aae43eb3 | 37 | extern int checksum_seed; |
4fe159a8 AT |
38 | |
39 | ||
40 | extern int remote_version; | |
76076c4b | 41 | extern int verbose; |
4fe159a8 | 42 | |
6902ed17 MP |
43 | extern int read_batch; /* dw */ |
44 | extern int write_batch; /* dw */ | |
45 | ||
aae43eb3 | 46 | void setup_protocol(int f_out,int f_in) |
4fe159a8 | 47 | { |
13c5fc0e AT |
48 | if (remote_version == 0) { |
49 | if (am_server) { | |
50 | remote_version = read_int(f_in); | |
51 | write_int(f_out,PROTOCOL_VERSION); | |
13c5fc0e AT |
52 | } else { |
53 | write_int(f_out,PROTOCOL_VERSION); | |
13c5fc0e AT |
54 | remote_version = read_int(f_in); |
55 | } | |
56 | } | |
aae43eb3 | 57 | |
13c5fc0e AT |
58 | if (remote_version < MIN_PROTOCOL_VERSION || |
59 | remote_version > MAX_PROTOCOL_VERSION) { | |
60 | rprintf(FERROR,"protocol version mismatch - is your shell clean?\n"); | |
d310a212 | 61 | rprintf(FERROR,"(see the rsync man page for an explanation)\n"); |
65417579 | 62 | exit_cleanup(RERR_PROTOCOL); |
13c5fc0e AT |
63 | } |
64 | ||
13c5fc0e AT |
65 | if (remote_version >= 12) { |
66 | if (am_server) { | |
6902ed17 MP |
67 | if (read_batch || write_batch) /* dw */ |
68 | checksum_seed = 32761; | |
69 | else | |
13c5fc0e AT |
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(); | |
4fe159a8 AT |
78 | } |
79 |