From 4f4d04f00b768157cde2c4b457377d70c61b4692 Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Fri, 14 Aug 2020 16:57:42 -0400
Subject: implement

---
 src/grp/getgrgid.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'src/grp/getgrgid.c')

diff --git a/src/grp/getgrgid.c b/src/grp/getgrgid.c
index 0d39ffc2..af10469c 100644
--- a/src/grp/getgrgid.c
+++ b/src/grp/getgrgid.c
@@ -1,10 +1,20 @@
 #include "sys/types.h"
 #include <grp.h>
-#include "stddef.h"
+#include "_grp.h"
 
 struct group * getgrgid(gid_t gid)
 {
-	(void)gid;
+	struct group *grp = NULL;
+	setgrent();
+
+	while ((grp = getgrent()) != NULL) {
+		if (grp->gr_gid == gid) {
+			endgrent();
+			return grp;
+		}
+	}
+
+	endgrent();
 	return NULL;
 }
 
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