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
|
/*
* setresuid() for uClibc
*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <sys/syscall.h>
#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
#include <unistd.h>
#if defined(__NR_setresuid32)
# undef __NR_setresuid
# define __NR_setresuid __NR_setresuid32
_syscall3(int, setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
libc_hidden_weak(setresuid)
#elif defined(__NR_setresuid)
# define __NR___syscall_setresuid __NR_setresuid
static __inline__ _syscall3(int, __syscall_setresuid,
__kernel_uid_t, rgid, __kernel_uid_t, egid, __kernel_uid_t, sgid)
int setresuid(uid_t ruid, uid_t euid, uid_t suid)
{
if (((ruid + 1) > (uid_t) ((__kernel_uid_t) - 1U))
|| ((euid + 1) > (uid_t) ((__kernel_uid_t) - 1U))
|| ((suid + 1) > (uid_t) ((__kernel_uid_t) - 1U))) {
__set_errno(EINVAL);
return -1;
}
return (__syscall_setresuid(ruid, euid, suid));
}
libc_hidden_weak(setresuid)
#endif
#endif
|
