---------------------
PatchSet 4953 
Date: 2007/06/29 15:43:22
Author: amosjeffries
Branch: squid3-ipv6
Tag: (none) 
Log:
The RFC1035 Destrpy* functions have been altered to atomically ensure that
pointers are set to NULL after the memory they reference is free'd.

Members: 
	src/dns_internal.cc:1.15.6.27->1.15.6.28 

Index: squid3/src/dns_internal.cc
===================================================================
RCS file: /cvsroot/squid-sf//squid3/src/dns_internal.cc,v
retrieving revision 1.15.6.27
retrieving revision 1.15.6.28
diff -u -r1.15.6.27 -r1.15.6.28
--- squid3/src/dns_internal.cc	24 Jun 2007 11:51:27 -0000	1.15.6.27
+++ squid3/src/dns_internal.cc	29 Jun 2007 15:43:22 -0000	1.15.6.28
@@ -1,6 +1,6 @@
 
 /*
- * $Id: dns_internal.cc,v 1.15.6.27 2007/06/24 11:51:27 amosjeffries Exp $
+ * $Id: dns_internal.cc,v 1.15.6.28 2007/06/29 15:43:22 amosjeffries Exp $
  *
  * DEBUG: section 78    DNS lookups; interacts with lib/rfc1035.c
  * AUTHOR: Duane Wessels
@@ -885,7 +885,7 @@
 void
 idnsDropMessage(rfc1035_message *message, idns_query *q)
 {
-    rfc1035MessageDestroy(message);
+    rfc1035MessageDestroy(&message);
     if (q->hash.key) {
         hash_remove_link(idns_lookup_hash, &q->hash);
         q->hash.key = NULL;
@@ -912,19 +912,19 @@
 
     if (q == NULL) {
         debugs(78, 3, "idnsGrokReply: Late response");
-        rfc1035MessageDestroy(message);
+        rfc1035MessageDestroy(&message);
         return;
     }
 
     if (rfc1035QueryCompare(&q->query, message->query) != 0) {
         debugs(78, 3, "idnsGrokReply: Query mismatch (" << q->query.name << " != " << message->query->name << ")");
-        rfc1035MessageDestroy(message);
+        rfc1035MessageDestroy(&message);
         return;
     }
 
     if (message->tc) {
         dlinkDelete(&q->lru, &lru_list);
-        rfc1035MessageDestroy(message);
+        rfc1035MessageDestroy(&message);
 
         if (!q->need_vc) {
             q->need_vc = 1;
@@ -952,7 +952,7 @@
              * the name server."
              */
             debugs(78, 3, "idnsGrokReply: Query result: SERV_FAIL");
-            rfc1035MessageDestroy(message);
+            rfc1035MessageDestroy(&message);
             q->start_t = current_time;
             q->id = idnsQueryID();
             rfc1035SetQueryID(q->buf, q->id);
@@ -1020,7 +1020,7 @@
 #endif
 
     idnsCallback(q, message->answer, n, q->error);
-    rfc1035MessageDestroy(message);
+    rfc1035MessageDestroy(&message);
 
     cbdataFree(q);
 }