diff options
Diffstat (limited to 'libc/sysdeps/linux/common/setresuid.c')
| -rw-r--r-- | libc/sysdeps/linux/common/setresuid.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/setresuid.c b/libc/sysdeps/linux/common/setresuid.c new file mode 100644 index 000000000..280ddcafc --- /dev/null +++ b/libc/sysdeps/linux/common/setresuid.c @@ -0,0 +1,25 @@ +/* vi: set sw=4 ts=4: */ +/* + * setresuid() for uClibc + * + * Copyright (C) 2000-2004 by Erik Andersen <andersen@codpoet.org> + * + * GNU Library General Public License (LGPL) version 2 or later. + */ + +#include "syscalls.h" + +#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)); +} |