| /* vi: set sw=4 ts=4: */ |
| /* |
| * setuid() 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> |
| |
| #if (__WORDSIZE == 32 && defined(__NR_setuid32)) || __WORDSIZE == 64 |
| # ifdef __NR_setuid32 |
| # undef __NR_setuid |
| # define __NR_setuid __NR_setuid32 |
| # endif |
| |
| _syscall1(int, setuid, uid_t, uid) |
| |
| #else |
| |
| # define __NR___syscall_setuid __NR_setuid |
| static __inline__ _syscall1(int, __syscall_setuid, __kernel_uid_t, uid) |
| |
| int setuid(uid_t uid) |
| { |
| if (uid == (uid_t) ~ 0 || uid != (uid_t) ((__kernel_uid_t) uid)) { |
| __set_errno(EINVAL); |
| return -1; |
| } |
| return (__syscall_setuid(uid)); |
| } |
| #endif |