1 /*
2  * setresgid() for uClibc
3  *
4  * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
5  *
6  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
7  */
8 
9 #include <sys/syscall.h>
10 #ifdef __USE_GNU
11 #include <unistd.h>
12 
13 #if defined(__NR_setresgid32)
14 # undef __NR_setresgid
15 # define __NR_setresgid __NR_setresgid32
16 
17 _syscall3(int, setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
18 libc_hidden_weak(setresgid)
19 
20 #elif defined(__NR_setresgid)
21 
22 # define __NR___syscall_setresgid __NR_setresgid
23 static __inline__ _syscall3(int, __syscall_setresgid,
24 		__kernel_gid_t, rgid, __kernel_gid_t, egid, __kernel_gid_t, sgid)
25 
26 int setresgid(gid_t rgid, gid_t egid, gid_t sgid)
27 {
28 	if (((rgid + 1) > (gid_t) ((__kernel_gid_t) - 1U))
29 		|| ((egid + 1) > (gid_t) ((__kernel_gid_t) - 1U))
30 		|| ((sgid + 1) > (gid_t) ((__kernel_gid_t) - 1U))) {
31 		__set_errno(EINVAL);
32 		return -1;
33 	}
34 	return (__syscall_setresgid(rgid, egid, sgid));
35 }
36 libc_hidden_weak(setresgid)
37 
38 #endif
39 
40 #endif
41