check for duplicates

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@23701 ec53bebd-3082-4978-b11e-865c3cabbd6b
2008-08-27 11:14:17 +00:00
parent f7090285fd
commit f8b6cf5b3a
1 changed files with 5 additions and 0 deletions
--- 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");