/* 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 __always_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