From 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 Mon Sep 17 00:00:00 2001
From: Rich Felker <dalias@aerifal.cx>
Date: Sat, 12 Feb 2011 00:22:29 -0500
Subject: initial check-in, version 0.5.0

---
 src/linux/initgroups.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 src/linux/initgroups.c

(limited to 'src/linux/initgroups.c')

diff --git a/src/linux/initgroups.c b/src/linux/initgroups.c
new file mode 100644
index 00000000..ef9bc10a
--- /dev/null
+++ b/src/linux/initgroups.c
@@ -0,0 +1,15 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <grp.h>
+#include <limits.h>
+
+int getgrouplist(const char *, gid_t, gid_t *, int *);
+int setgroups(size_t, const gid_t *);
+
+int initgroups(const char *user, gid_t gid)
+{
+	gid_t groups[NGROUPS_MAX];
+	int count;
+	if (getgrouplist(user, gid, groups, &count) < 0) return -1;
+	return setgroups(count, groups);
+}
-- 
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