Attachment 15402 Details for Bug 48346

[patch] cachenegative patch for bind8.

bind-chroot-8.2.6-CAN-2003-0914-gd-1.diff (text/plain), 1.66 KB, created by Roman Drahtmueller on 2003-11-26 22:02:00 UTC

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Creator: Roman Drahtmueller

Created: 2003-11-26 22:02:00 UTC

Size: 1.66 KB

patch

obsolete

>diff -Naur bind-chroot-8.2.6-1.5.2/src/bin/named/ns_resp.c bind-chroot-8.2.6-1.5.2.rwm/src/bin/named/ns_resp.c
>--- bind-chroot-8.2.6-1.5.2/src/bin/named/ns_resp.c	Wed Nov 26 08:42:29 2003
>+++ bind-chroot-8.2.6-1.5.2.rwm/src/bin/named/ns_resp.c	Wed Nov 26 08:48:50 2003
>@@ -280,7 +280,7 @@
> 	u_int qtype, qclass;
> 	int restart;	/* flag for processing cname response */
> 	int validanswer, dbflags;
>-	int cname, lastwascname, externalcname;
>+	int cname, lastwascname, externalcname, cachenegative;
> 	int count, founddata, foundname;
> 	int buflen;
> 	int newmsglen;
>@@ -905,6 +905,7 @@
> 	cname = 0;
> 	lastwascname = 0;
> 	externalcname = 0;
>+	cachenegative = 1;
> 	strcpy(aname, qname);
> 
> 	if (count) {
>@@ -974,6 +975,7 @@
> 						 name);
> 				db_freedata(dp);
> 				validanswer = 0;
>+				cachenegative = 0;
> 				continue;
> 			}
> 			if (type == T_CNAME &&
>@@ -1004,6 +1006,7 @@
> 				 "last was cname, ignoring auth. and add.");
> 				db_freedata(dp);
> 				validanswer = 0;
>+				cachenegative = 0;
> 				break;
> 			}
> 			if (i < arfirst) {
>@@ -1019,6 +1022,7 @@
> 							sin_ntoa(from));
> 						db_freedata(dp);
> 						validanswer = 0;
>+						cachenegative = 0;
> 						continue;
> 					} else if (!ns_samedomain(name,
> 							       qp->q_domain)) {
>@@ -1032,6 +1036,7 @@
> 							 sin_ntoa(from));
> 						db_freedata(dp);
> 						validanswer = 0;
>+						cachenegative = 0;
> 						continue;
> 					}
> 					if (type == T_NS) {
>@@ -1210,8 +1215,9 @@
> 	     )
> 	    )
> 	{
>-		cache_n_resp(msg, msglen, from, qp->q_name,
>-			     qp->q_class, qp->q_type);
>+		if (cachenegative)
>+			cache_n_resp(msg, msglen, from, qp->q_name,
>+				     qp->q_class, qp->q_type);
> 
> 		if (!qp->q_cmsglen) {
> 			ns_debug(ns_log_default, 3,

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