From f40e41cf94de0b9a81696a860958d9712d4cb806 Mon Sep 17 00:00:00 2001
From: wessels <>
Date: Fri, 27 Mar 1998 11:44:54 +0000
Subject: [PATCH] warn about adding duplicate/overlapping IP keys for binary
 trees

---
 src/acl.cc | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/acl.cc b/src/acl.cc
index 22a62d5aea..ed84fc77b9 100644
--- a/src/acl.cc
+++ b/src/acl.cc
@@ -1,6 +1,6 @@
 
 /*
- * $Id: acl.cc,v 1.152 1998/03/17 03:59:21 wessels Exp $
+ * $Id: acl.cc,v 1.153 1998/03/27 04:44:54 wessels Exp $
  *
  * DEBUG: section 28    Access Control
  * AUTHOR: Duane Wessels
@@ -477,13 +477,21 @@ aclParseIpList(void **curtree)
     tree **Tree;
     char *t = NULL;
     acl_ip_data *q;
+    acl_ip_data *x;
     Tree = xmalloc(sizeof(tree *));
     *curtree = Tree;
     tree_init(Tree);
     while ((t = strtokFile())) {
 	q = aclParseIpData(t);
 	while (q != NULL) {
-	    tree_add(Tree, bintreeNetworkCompare, q, NULL);
+	    x = tree_srch(Tree, bintreeIpNetworkCompare, &q->addr1);
+	    if (NULL != x) {
+		debug(0, 0) ("aclParseIpList: Ignoring duplicate/clashing entry\n");
+		debug(0, 0) ("--> %s already exists\n", inet_ntoa(x->addr1));
+		debug(0, 0) ("--> %s is ignored\n", inet_ntoa(q->addr1));
+	    } else {
+		tree_add(Tree, bintreeNetworkCompare, q, NULL);
+	    }
 	    q = q->next;
 	}
     }
-- 
2.47.3