From: wessels <>
Date: Mon, 19 Apr 1999 13:16:29 +0000 (+0000)
Subject: Fixed queue traversal.  we only check the last queue entry because
X-Git-Tag: SQUID_3_0_PRE1~2257
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0c4fe9e4aeb7eb18fce2ff00c4707e8ea1df7a60;p=thirdparty%2Fsquid.git

Fixed queue traversal.  we only check the last queue entry because
n->prev was always NULL after removing it from the double linked list.
---

diff --git a/src/dns_internal.cc b/src/dns_internal.cc
index 9dff6a8b4d..af0b81998b 100644
--- a/src/dns_internal.cc
+++ b/src/dns_internal.cc
@@ -1,6 +1,6 @@
 
 /*
- * $Id: dns_internal.cc,v 1.11 1999/04/19 07:06:14 wessels Exp $
+ * $Id: dns_internal.cc,v 1.12 1999/04/19 07:16:29 wessels Exp $
  *
  * DEBUG: section 78    DNS lookups; interacts with lib/rfc1035.c
  * AUTHOR: Duane Wessels
@@ -318,14 +318,16 @@ static void
 idnsCheckQueue(void *unused)
 {
     dlink_node *n;
+    dlink_node *p = NULL;
     idns_query *q;
     event_queued = 0;
-    for (n = lru_list.tail; n; n = n->prev) {
+    for (n = lru_list.tail; n; n = p) {
 	q = n->data;
 	if (tvSubDsec(q->sent_t, current_time) < 5.0)
 	    break;
 	debug(78, 3) ("idnsCheckQueue: ID %#04x timeout\n",
 	    q->id);
+	p = n->prev;
 	dlinkDelete(&q->lru, &lru_list);
 	if (q->nsends < IDNS_MAX_TRIES) {
 	    idnsSendQuery(q);