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
|
/*
* static int
* wrap_fchown(int fd, uid_t owner, gid_t group) {
* int rc = -1;
*/
pseudo_msg_t *msg;
struct stat64 buf;
int save_errno;
if (real___fxstat64(_STAT_VER, fd, &buf) == -1) {
save_errno = errno;
pseudo_debug(2, "fchown failing because fxstat failed: %s\n",
strerror(errno));
errno = save_errno;
return -1;
}
if (owner == -1 || group == -1) {
msg = pseudo_client_op(OP_STAT, fd, -1, NULL, &buf);
/* copy in any existing values... */
if (msg) {
if (msg->result == RESULT_SUCCEED) {
pseudo_stat_msg(&buf, msg);
} else {
pseudo_debug(2, "fchown fd %d, ino %llu, unknown file.\n",
fd, (unsigned long long) buf.st_ino);
}
} else {
pseudo_diag("stat within chown of fd %d [%llu] failed.\n",
fd, (unsigned long long) buf.st_ino);
}
}
/* now override with arguments */
if (owner != -1) {
buf.st_uid = owner;
}
if (group != -1) {
buf.st_gid = group;
}
pseudo_debug(2, "fchown, fd %d: %d:%d -> %d:%d\n",
fd, owner, group, buf.st_uid, buf.st_gid);
msg = pseudo_client_op(OP_FCHOWN, fd, -1, 0, &buf);
if (!msg) {
errno = ENOSYS;
rc = -1;
} else if (msg->result != RESULT_SUCCEED) {
errno = msg->xerrno;
rc = -1;
} else {
rc = 0;
}
/* return rc;
* }
*/
|