mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-05 11:11:04 +00:00
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/* Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include <sys/types.h>
|
|
#include <sys/fsuid.h>
|
|
|
|
#include <sysdep.h>
|
|
#include <sys/syscall.h>
|
|
#include <linux/posix_types.h>
|
|
#include "kernel-features.h"
|
|
|
|
|
|
#ifdef __NR_setfsgid
|
|
|
|
# ifdef __NR_setfsgid32
|
|
# if __ASSUME_32BITUIDS == 0
|
|
/* This variable is shared with all files that need to check for 32bit
|
|
uids. */
|
|
extern int __libc_missing_32bit_uids attribute_hidden;
|
|
# endif
|
|
# endif /* __NR_setfsgid32 */
|
|
|
|
int
|
|
setfsgid (gid_t gid)
|
|
{
|
|
INTERNAL_SYSCALL_DECL (err);
|
|
# if __ASSUME_32BITUIDS > 0
|
|
/* No error checking. */
|
|
return INTERNAL_SYSCALL (setfsgid32, err, 1, gid);
|
|
# else
|
|
# ifdef __NR_setfsgid32
|
|
if (__libc_missing_32bit_uids <= 0)
|
|
{
|
|
int result;
|
|
|
|
result = INTERNAL_SYSCALL (setfsgid32, err, 1, gid);
|
|
if (! INTERNAL_SYSCALL_ERROR_P (result, err)
|
|
|| INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
|
|
return result;
|
|
|
|
__libc_missing_32bit_uids = 1;
|
|
}
|
|
# endif /* __NR_setfsgid32 */
|
|
if (gid != (gid_t) ((__kernel_gid_t) gid))
|
|
{
|
|
__set_errno (EINVAL);
|
|
return -1;
|
|
}
|
|
|
|
/* No error checking. */
|
|
return INTERNAL_SYSCALL (setfsgid, err, 1, gid);
|
|
# endif
|
|
}
|
|
#endif
|