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Diffstat (limited to 'libc/sysdeps/linux/common/setuid.c')
-rw-r--r--libc/sysdeps/linux/common/setuid.c44
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));
+}
+