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/* vi: set sw=4 ts=4: */
/*
* setreuid() 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>
#include <unistd.h>
#include <bits/wordsize.h>
libc_hidden_proto(setreuid)
#if (__WORDSIZE == 32 && defined(__NR_setreuid32)) || __WORDSIZE == 64
# ifdef __NR_setreuid32
# undef __NR_setreuid
# define __NR_setreuid __NR_setreuid32
# endif
_syscall2(int, setreuid, uid_t, ruid, uid_t, euid)
#else
# define __NR___syscall_setreuid __NR_setreuid
static __inline__ _syscall2(int, __syscall_setreuid,
__kernel_uid_t, ruid, __kernel_uid_t, euid)
int setreuid(uid_t ruid, uid_t euid)
{
if (((ruid + 1) > (uid_t) ((__kernel_uid_t) - 1U))
|| ((euid + 1) > (uid_t) ((__kernel_uid_t) - 1U))) {
__set_errno(EINVAL);
return -1;
}
return (__syscall_setreuid(ruid, euid));
}
#endif
libc_hidden_def(setreuid)
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