Added some checks for NULL-pointers.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1969 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_backend_random.c

@@ -481,6 +481,7 @@ VRT_init_random_backend(struct backend **bp, struct vrt_random_backend *t)
 	be = t->bentry;
 	while (be != NULL) {
 		bs = calloc(sizeof *bs, 1);
+		XXXAN(bs);
 		bs->magic = BRSPEC_MAGIC;
 		AN(be->port);
 		bs->portname = strdup(be->port);
@@ -506,7 +507,7 @@ VRT_init_random_backend(struct backend **bp, struct vrt_random_backend *t)
 		bs_prev = bs;
 		be = be->next;
 	}
-	
+	XXXAN(bs_first);
 	bs_first->next = bs;
 	ber->blist = bs;
 	

bin/varnishd/cache_backend_round_robin.c

@@ -465,6 +465,7 @@ VRT_init_round_robin_backend(struct backend **bp, struct vrt_round_robin_backend
 	be = t->bentry;
 	while (be != NULL) {
 		bs = calloc(sizeof *bs, 1);
+		XXXAN(bs);
 		bs->magic = BSPEC_MAGIC;
 		AN(be->port);
 		bs->portname = strdup(be->port);
@@ -485,6 +486,7 @@ VRT_init_round_robin_backend(struct backend **bp, struct vrt_round_robin_backend
 		be = be->next;
 	}
 	
+	XXXAN(bs_first);
 	bs_first->next = bs;
 	brr->blist = bs;
 	

bin/varnishd/cache_response.c

@@ -132,6 +132,7 @@ RES_BuildHttp(struct sess *sp)
 	 */
 	http_Unset(sp->http, H_Date);
 	time_str = malloc(50);
+	XXXAN(time_str);
 	sprintf(time_str, "Date: ");
 	TIM_format(TIM_real(), &(time_str[6]));
 	http_SetHeader(sp->wrk, sp->fd, sp->http, time_str);