diff options
Diffstat (limited to 'libc/sysdeps/linux/common/setuid.c')
| -rw-r--r-- | libc/sysdeps/linux/common/setuid.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/setuid.c b/libc/sysdeps/linux/common/setuid.c new file mode 100644 index 000000000..a9ca830df --- /dev/null +++ b/libc/sysdeps/linux/common/setuid.c @@ -0,0 +1,44 @@ +/* vi: set sw=4 ts=4: */ +/* + * setuid syscall for uClibc + * + * Copyright (C) 2002 by Erik Andersen <andersen@codpoet.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License + * for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#define _GNU_SOURCE +#include <features.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/syscall.h> + +#ifndef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) __syscall_setuid (args) +#define __NR___syscall_setuid __NR_setuid +static inline _syscall1(int, __syscall_setuid, int, id); +#endif + +int setuid(uid_t uid) +{ + if (uid == (uid_t) ~0 || uid != (uid_t) ((int) uid)) { + __set_errno (EINVAL); + return -1; + } + + return(INLINE_SYSCALL(setuid, 1, uid)); +} + |