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3d19b4c8 AT |
1 | /* |
2 | Copyright (C) Andrew Tridgell 1999 | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | */ | |
18 | ||
19 | /* backup handling code */ | |
20 | ||
21 | #include "rsync.h" | |
22 | ||
23 | extern int verbose; | |
24 | extern char *backup_suffix; | |
25 | ||
26 | ||
27 | int make_backup(char *fname) | |
28 | { | |
29 | char fnamebak[MAXPATHLEN]; | |
30 | if (strlen(fname) + strlen(backup_suffix) > (MAXPATHLEN-1)) { | |
31 | rprintf(FERROR,"backup filename too long\n"); | |
32 | return 0; | |
33 | } | |
34 | ||
35 | slprintf(fnamebak,sizeof(fnamebak),"%s%s",fname,backup_suffix); | |
36 | if (do_rename(fname,fnamebak) != 0) { | |
37 | /* cygwin (at least version b19) reports EINVAL */ | |
38 | if (errno != ENOENT && errno != EINVAL) { | |
39 | rprintf(FERROR,"rename %s %s : %s\n",fname,fnamebak,strerror(errno)); | |
40 | return 0; | |
41 | } | |
42 | } else if (verbose > 1) { | |
43 | rprintf(FINFO,"backed up %s to %s\n",fname,fnamebak); | |
44 | } | |
45 | return 1; | |
46 | } |