Commit | Line | Data |
---|---|---|
0f78b815 | 1 | /* |
d1f83bcc | 2 | * Compatibility routines for older rsync protocol versions. |
0f78b815 WD |
3 | * |
4 | * Copyright (C) Andrew Tridgell 1996 | |
5 | * Copyright (C) Paul Mackerras 1996 | |
6 | * Copyright (C) 2004, 2005, 2006 Wayne Davison | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
e7c67065 WD |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
0f78b815 | 21 | */ |
4fe159a8 AT |
22 | |
23 | #include "rsync.h" | |
24 | ||
8a9709de WD |
25 | int remote_protocol = 0; |
26 | ||
b9f592fb | 27 | extern int verbose; |
aae43eb3 | 28 | extern int am_server; |
57b12568 | 29 | extern int inplace; |
e461b9be | 30 | extern int fuzzy_basis; |
b9f592fb | 31 | extern int read_batch; |
aae43eb3 | 32 | extern int checksum_seed; |
57b12568 | 33 | extern int basis_dir_cnt; |
a1cc199b | 34 | extern int prune_empty_dirs; |
8a9709de | 35 | extern int protocol_version; |
57b12568 | 36 | extern char *dest_option; |
4fe159a8 | 37 | |
aae43eb3 | 38 | void setup_protocol(int f_out,int f_in) |
4fe159a8 | 39 | { |
8a9709de | 40 | if (remote_protocol == 0) { |
aa434321 | 41 | if (!read_batch) |
8a9709de | 42 | write_int(f_out, protocol_version); |
aa434321 | 43 | remote_protocol = read_int(f_in); |
8a9709de WD |
44 | if (protocol_version > remote_protocol) |
45 | protocol_version = remote_protocol; | |
13c5fc0e | 46 | } |
b9f592fb WD |
47 | if (read_batch && remote_protocol > protocol_version) { |
48 | rprintf(FERROR, "The protocol version in the batch file is too new (%d > %d).\n", | |
49 | remote_protocol, protocol_version); | |
50 | exit_cleanup(RERR_PROTOCOL); | |
51 | } | |
aae43eb3 | 52 | |
8a9709de WD |
53 | if (verbose > 3) { |
54 | rprintf(FINFO, "(%s) Protocol versions: remote=%d, negotiated=%d\n", | |
55 | am_server? "Server" : "Client", remote_protocol, protocol_version); | |
56 | } | |
57 | if (remote_protocol < MIN_PROTOCOL_VERSION | |
58 | || remote_protocol > MAX_PROTOCOL_VERSION) { | |
4ccfd96c | 59 | rprintf(FERROR,"protocol version mismatch -- is your shell clean?\n"); |
d310a212 | 60 | rprintf(FERROR,"(see the rsync man page for an explanation)\n"); |
65417579 | 61 | exit_cleanup(RERR_PROTOCOL); |
8a9709de WD |
62 | } |
63 | if (remote_protocol < OLD_PROTOCOL_VERSION) { | |
1b2db7ae | 64 | rprintf(FINFO,"%s is very old version of rsync, upgrade recommended.\n", |
8a9709de WD |
65 | am_server? "Client" : "Server"); |
66 | } | |
67 | if (protocol_version < MIN_PROTOCOL_VERSION) { | |
68 | rprintf(FERROR, "--protocol must be at least %d on the %s.\n", | |
69 | MIN_PROTOCOL_VERSION, am_server? "Server" : "Client"); | |
70 | exit_cleanup(RERR_PROTOCOL); | |
71 | } | |
72 | if (protocol_version > PROTOCOL_VERSION) { | |
73 | rprintf(FERROR, "--protocol must be no more than %d on the %s.\n", | |
74 | PROTOCOL_VERSION, am_server? "Server" : "Client"); | |
75 | exit_cleanup(RERR_PROTOCOL); | |
76 | } | |
1b2db7ae | 77 | |
a1cc199b WD |
78 | if (protocol_version < 29) { |
79 | if (fuzzy_basis) { | |
80 | rprintf(FERROR, | |
81 | "--fuzzy requires protocol 29 or higher" | |
82 | " (negotiated %d).\n", | |
83 | protocol_version); | |
84 | exit_cleanup(RERR_PROTOCOL); | |
85 | } | |
e461b9be | 86 | |
a1cc199b WD |
87 | if (basis_dir_cnt && inplace) { |
88 | rprintf(FERROR, | |
89 | "%s with --inplace requires protocol 29 or higher" | |
90 | " (negotiated %d).\n", | |
91 | dest_option, protocol_version); | |
92 | exit_cleanup(RERR_PROTOCOL); | |
93 | } | |
57b12568 | 94 | |
a1cc199b WD |
95 | if (basis_dir_cnt > 1) { |
96 | rprintf(FERROR, | |
97 | "Using more than one %s option requires protocol" | |
98 | " 29 or higher (negotiated %d).\n", | |
99 | dest_option, protocol_version); | |
100 | exit_cleanup(RERR_PROTOCOL); | |
101 | } | |
102 | ||
103 | if (prune_empty_dirs) { | |
104 | rprintf(FERROR, | |
105 | "--prune-empty-dirs requires protocol 29 or higher" | |
106 | " (negotiated %d).\n", | |
107 | protocol_version); | |
108 | exit_cleanup(RERR_PROTOCOL); | |
109 | } | |
57b12568 WD |
110 | } |
111 | ||
bc63ae3f | 112 | if (am_server) { |
b1bf649c | 113 | if (!checksum_seed) |
13c5fc0e | 114 | checksum_seed = time(NULL); |
b1bf649c | 115 | write_int(f_out, checksum_seed); |
bc63ae3f S |
116 | } else { |
117 | checksum_seed = read_int(f_in); | |
13c5fc0e | 118 | } |
4fe159a8 | 119 | } |