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
|
/*
* Copyright (c) 2008-2010 Wind River Systems; see
* guts/COPYRIGHT for information.
*
* static int
* wrap___fxstatat64(int ver, int dirfd, const char *path, struct stat64 *buf, int flags) {
* int rc = -1;
*/
pseudo_msg_t *msg;
int save_errno;
mode_t save_mode = 0;
#ifdef PSEUDO_NO_REAL_AT_FUNCTIONS
if (dirfd != AT_FDCWD) {
errno = ENOSYS;
return -1;
}
#endif
/* If the file is actually a symlink, we grab the db values
* for the underlying target, then mask in the size and mode
* from the link. Otherwise, we just use the db values (if
* any).
*/
if (flags & AT_SYMLINK_NOFOLLOW) {
#ifdef PSEUDO_NO_REAL_AT_FUNCTIONS
rc = real___lxstat64(ver, path, buf);
#else
rc = real___fxstatat64(ver, dirfd, path, buf, flags);
#endif
if (rc == -1) {
return rc;
}
/* it's a symlink, stash its mode */
if (S_ISLNK(buf->st_mode)) {
save_mode = buf->st_mode;
}
} else {
#ifdef PSEUDO_NO_REAL_AT_FUNCTIONS
rc = real___xstat64(ver, path, buf);
#else
rc = real___fxstatat64(ver, dirfd, path, buf, flags);
#endif
if (rc == -1) {
return rc;
}
}
/* if we got here: we have valid stat data, for either the symlink
* (if it is a symlink, and we have NOFOLLOW on) or the target.
*/
save_errno = errno;
if (ver != _STAT_VER) {
pseudo_debug(1, "version mismatch: got stat version %d, only supporting %d\n", ver, _STAT_VER);
errno = save_errno;
return rc;
}
/* query database
* note that symlink canonicalizing is now automatic, so we
* don't need to check for a symlink on this end
*/
msg = pseudo_client_op(OP_STAT, 0, -1, dirfd, path, buf);
if (msg) {
pseudo_stat_msg(buf, msg);
if (save_mode) {
buf->st_mode = save_mode;
}
}
errno = save_errno;
/* return rc;
* }
*/
|
