Changeset 5183

Timestamp:

Sep 29, 2015 8:38:42 AM (9 years ago)

Author:

nanang

Message:

Fix #1889: DNS parser should return error on RR class != IN only when RR type is known.

File:

• pjproject/trunk/pjlib-util/src/pjlib-util/dns.c (modified) (1 diff)

pjproject/trunk/pjlib-util/src/pjlib-util/dns.c

@@ -327 +327 @@
 
     /* Class MUST be IN */
-    if (rr->dnsclass != 1)
-        return PJLIB_UTIL_EDNSINCLASS;
+    if (rr->dnsclass != 1) {
+        /* Class is not IN, return error only if type is known (see #1889) */
+        if (rr->type == PJ_DNS_TYPE_A     || rr->type == PJ_DNS_TYPE_AAAA  ||
+            rr->type == PJ_DNS_TYPE_CNAME || rr->type == PJ_DNS_TYPE_NS    ||
+            rr->type == PJ_DNS_TYPE_PTR   || rr->type == PJ_DNS_TYPE_SRV)
+        {
+            return PJLIB_UTIL_EDNSINCLASS;
+        }
+    }
 
     /* Get TTL */