1 files changed, 36 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/setgroups.c b/libc/sysdeps/linux/common/setgroups.c
new file mode 100644
index 000000000..622d24d58
--- /dev/null
+++ b/libc/sysdeps/linux/common/setgroups.c
@@ -0,0 +1,36 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * setgroups() 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"
+#include <unistd.h>
+#include <grp.h>
+
+#define __NR___syscall_setgroups __NR_setgroups
+static inline _syscall2(int, __syscall_setgroups,
+		size_t, size, const __kernel_gid_t *, list);
+
+int setgroups(size_t n, const gid_t * groups)
+{
+	if (n > (size_t) sysconf(_SC_NGROUPS_MAX)) {
+		__set_errno(EINVAL);
+		return -1;
+	} else {
+		size_t i;
+		__kernel_gid_t kernel_groups[n];
+
+		for (i = 0; i < n; i++) {
+			kernel_groups[i] = (groups)[i];
+			if (groups[i] != (gid_t) ((__kernel_gid_t) groups[i])) {
+				__set_errno(EINVAL);
+				return -1;
+			}
+		}
+		return (__syscall_setgroups(n, kernel_groups));
+	}
+}