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- /*
- * 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_weak(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_weak(setresuid)
- #endif
- #endif
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