| /* 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> |
| |
| |
| #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) |