1 /* Copyright (C) 1998, 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 #include <linux/posix_types.h>
23 #include "kernel-features.h"
26 #if defined __NR_setresuid || defined __NR_setresuid32
28 # ifdef __NR_setresuid32
29 # if __ASSUME_32BITUIDS == 0
30 /* This variable is shared with all files that need to check for 32bit
32 extern int __libc_missing_32bit_uids
;
34 # endif /* __NR_setresuid32 */
37 __setresuid (uid_t ruid
, uid_t euid
, uid_t suid
)
41 # if __ASSUME_32BITUIDS > 0 || !defined __NR_setresuid
42 result
= INLINE_SETXID_SYSCALL (setresuid32
, 3, ruid
, euid
, suid
);
44 # ifdef __NR_setresuid32
45 if (__libc_missing_32bit_uids
<= 0)
47 int saved_errno
= errno
;
49 result
= INLINE_SETXID_SYSCALL (setresuid32
, 3, ruid
, euid
, suid
);
55 __set_errno (saved_errno
);
56 __libc_missing_32bit_uids
= 1;
58 # endif /* __NR_setresuid32 */
60 if (((ruid
+ 1) > (uid_t
) ((__kernel_uid_t
) -1U))
61 || ((euid
+ 1) > (uid_t
) ((__kernel_uid_t
) -1U))
62 || ((suid
+ 1) > (uid_t
) ((__kernel_uid_t
) -1U)))
68 result
= INLINE_SETXID_SYSCALL (setresuid
, 3, ruid
, euid
, suid
);
69 # ifdef __NR_setresuid32
76 libc_hidden_def (__setresuid
)
78 weak_alias (__setresuid
, setresuid
)
83 #include <sysdeps/generic/setresuid.c>