From f8b6cf5b3a31d24aa10004f1b9e98171b706bd8e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Love=20H=C3=B6rnquist=20=C3=85strand?= <lha@kth.se>
Date: Wed, 27 Aug 2008 11:14:17 +0000
Subject: [PATCH] check for duplicates

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@23701 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/krb5/plugin.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/krb5/plugin.c b/lib/krb5/plugin.c
index fb1ee3228..8b24d5710 100644
--- a/lib/krb5/plugin.c
+++ b/lib/krb5/plugin.c
@@ -137,6 +137,11 @@ krb5_plugin_register(krb5_context context,
 {
     struct plugin *e;
 
+    /* check for duplicates */
+    for (e = registered; e != NULL; e = e->next)
+	if (e->type == type && strcmp(e->name,name)== 0 && e->symbol == symbol)
+	    return 0;
+
     e = calloc(1, sizeof(*e));
     if (e == NULL) {
 	krb5_set_error_message(context, ENOMEM, "malloc: out of memory");