From: Martin Mares <mj@ucw.cz>
Date: Sun, 12 Mar 2000 22:40:07 +0000 (+0000)
Subject: Don't crash when filter_same() gets called on FILTER_ACCEPT or FILTER_REJECT.
X-Git-Tag: v1.2.0~1277
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81ce667b7b7c38e109984602cf4e5ecbec80f7f1;p=thirdparty%2Fbird.git

Don't crash when filter_same() gets called on FILTER_ACCEPT or FILTER_REJECT.
---

diff --git a/filter/filter.c b/filter/filter.c
index 3bb21e682..5faabfefa 100644
--- a/filter/filter.c
+++ b/filter/filter.c
@@ -557,5 +557,10 @@ filters_postconfig(void)
 int
 filter_same(struct filter *new, struct filter *old)
 {
+  if (old == new)	/* Handle FILTER_ACCEPT and FILTER_REJECT */
+    return 1;
+  if (old == FILTER_ACCEPT || old == FILTER_REJECT ||
+      new == FILTER_ACCEPT || new == FILTER_REJECT)
+    return 0;
   return i_same(new->root, old->root);
 }