From be7c51d27abf6c1a269a3f42a96c86f7c0016dec Mon Sep 17 00:00:00 2001
From: nekral-guest <nekral-guest@5a98b0ae-9ef6-0310-add3-de5d479b70d7>
Date: Sun, 3 Feb 2008 16:51:08 +0000
Subject: [PATCH] New function to find a group by its GID on the local
 database.

---
 ChangeLog     |  2 ++
 lib/groupio.c | 12 ++++++++++++
 lib/groupio.h |  2 ++
 3 files changed, 16 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 42dcf688..f4593305 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,8 @@
 
 	* lib/pwio.c, lib/pwio.h: New function to find an user by
 	its UID on the local database.
+	* lib/groupio.c, lib/groupio.h: New function to find a group by
+	its GID on the local database.
 
 2008-02-02  Nicolas François  <nicolas.francois@centraliens.net>
 
diff --git a/lib/groupio.c b/lib/groupio.c
index 9d9b3d30..9839819e 100644
--- a/lib/groupio.c
+++ b/lib/groupio.c
@@ -113,6 +113,18 @@ const struct group *gr_locate (const char *name)
 	return commonio_locate (&group_db, name);
 }
 
+const struct group *gr_locate_gid (gid_t gid)
+{
+	const struct group *grp;
+
+	gr_rewind ();
+	while (   ((grp = gr_next ()) != NULL)
+	       && (grp->gr_gid != gid)) {
+	}
+
+	return grp;
+}
+
 int gr_update (const struct group *gr)
 {
 	return commonio_update (&group_db, (const void *) gr);
diff --git a/lib/groupio.h b/lib/groupio.h
index e2b5d04e..2d587a58 100644
--- a/lib/groupio.h
+++ b/lib/groupio.h
@@ -1,5 +1,7 @@
+#include <grp.h>
 extern int gr_close (void);
 extern const struct group *gr_locate (const char *);
+extern const struct group *gr_locate_gid (gid_t gid);
 extern int gr_lock (void);
 extern int gr_name (const char *);
 extern const struct group *gr_next (void);