1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
libfakechroot -- fake chroot environment
Copyright (c) 2010, 2013, 2015 Piotr Roszatycki <dexter@debian.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <config.h>
#ifdef HAVE___LXSTAT64
#define _LARGEFILE64_SOURCE
#define _XOPEN_SOURCE 500
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include "libfakechroot.h"
#include "readlink.h"
LOCAL int __lxstat64_rel(int, const char *, struct stat64 *);
wrapper(__lxstat64, int, (int ver, const char * filename, struct stat64 * buf))
{
debug("__lxstat64(%d, \"%s\", &buf)", ver, filename);
if (filename && !fakechroot_localdir(filename)) {
char abs_filename[FAKECHROOT_PATH_MAX];
rel2abs(filename, abs_filename);
filename = abs_filename;
}
return __lxstat64_rel(ver, filename, buf);
}
/* Prevent looping with realpath() */
LOCAL int __lxstat64_rel(int ver, const char * filename, struct stat64 * buf)
{
char tmp[FAKECHROOT_PATH_MAX];
int retval;
READLINK_TYPE_RETURN linksize;
const char *orig_filename;
debug("__lxstat64_rel(%d, \"%s\", &buf)", ver, filename);
orig_filename = filename;
expand_chroot_rel_path(filename);
retval = nextcall(__lxstat64)(ver, filename, buf);
/* deal with http://bugs.debian.org/561991 */
if ((retval == 0) && (buf->st_mode & S_IFMT) == S_IFLNK)
if ((linksize = readlink(orig_filename, tmp, sizeof(tmp)-1)) != -1)
buf->st_size = linksize;
return retval;
}
#else
typedef int empty_translation_unit;
#endif
|