| /* vi: set sw=4 ts=4: */ |
| /* |
| * setresuid() 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> |
| #if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__ |
| #include <unistd.h> |
| |
| #if defined(__NR_setresuid32) |
| # undef __NR_setresuid |
| # define __NR_setresuid __NR_setresuid32 |
| |
| _syscall3(int, setresuid, uid_t, ruid, uid_t, euid, uid_t, suid) |
| libc_hidden_def(setresuid) |
| |
| #elif defined(__NR_setresuid) |
| |
| # define __NR___syscall_setresuid __NR_setresuid |
| static __inline__ _syscall3(int, __syscall_setresuid, |
| __kernel_uid_t, rgid, __kernel_uid_t, egid, __kernel_uid_t, sgid) |
| |
| int setresuid(uid_t ruid, uid_t euid, uid_t suid) |
| { |
| if (((ruid + 1) > (uid_t) ((__kernel_uid_t) - 1U)) |
| || ((euid + 1) > (uid_t) ((__kernel_uid_t) - 1U)) |
| || ((suid + 1) > (uid_t) ((__kernel_uid_t) - 1U))) { |
| __set_errno(EINVAL); |
| return -1; |
| } |
| return (__syscall_setresuid(ruid, euid, suid)); |
| } |
| libc_hidden_def(setresuid) |
| |
| #endif |
| |
| #endif |