1995. [bug] 'host' was reporting multiple "is an alias" messages.

                        [RT #15702]

CHANGES

+1995.	[bug]		'host' was reporting multiple "is an alias" messages.
+			[RT #15702]
+
 1994.	[port]		OpenSSL 0.9.8 support. [RT #15694]
 
 1993.	[bug]		Log messsage, via syslog, were missing the space

bin/dig/host.c

@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: host.c,v 1.106 2005/08/25 00:40:49 marka Exp $ */
+/* $Id: host.c,v 1.107 2006/03/02 01:45:46 marka Exp $ */
 
 /*! \file */
 
@@ -39,6 +39,7 @@
 #include <dns/rdataclass.h>
 #include <dns/rdataset.h>
 #include <dns/rdatatype.h>
+#include <dns/rdatastruct.h>
 
 #include <dig/dig.h>
 
@@ -355,6 +356,32 @@ printrdata(dns_message_t *msg, dns_rdataset_t *rdataset, dns_name_t *owner,
 	return (ISC_R_SUCCESS);
 }
 
+static void
+chase_cnamechain(dns_message_t *msg, dns_name_t *qname) {
+	isc_result_t result;
+	dns_rdataset_t *rdataset;
+	dns_rdata_cname_t cname;
+	dns_rdata_t rdata = DNS_RDATA_INIT;
+	unsigned int i = msg->counts[DNS_SECTION_ANSWER];
+
+ 	while (i-- > 0) {
+		rdataset = NULL;
+		result = dns_message_findname(msg, DNS_SECTION_ANSWER, qname,
+					      dns_rdatatype_cname, 0, NULL,
+					      &rdataset);
+		if (result != ISC_R_SUCCESS)
+			return;
+		result = dns_rdataset_first(rdataset);
+		check_result(result, "dns_rdataset_first");
+		dns_rdata_reset(&rdata);
+		dns_rdataset_current(rdataset, &rdata);
+		result = dns_rdata_tostruct(&rdata, &cname, NULL);
+		check_result(result, "dns_rdata_tostruct");
+		dns_name_copy(&cname.cname, qname, NULL);
+		dns_rdata_freestruct(&cname);
+	}
+}
+
 isc_result_t
 printmessage(dig_query_t *query, dns_message_t *msg, isc_boolean_t headers) {
 	isc_boolean_t did_flag = ISC_FALSE;
@@ -393,10 +420,15 @@ printmessage(dig_query_t *query, dns_message_t *msg, isc_boolean_t headers) {
 	if (default_lookups && query->lookup->rdtype == dns_rdatatype_a) {
 		char namestr[DNS_NAME_FORMATSIZE];
 		dig_lookup_t *lookup;
+		dns_fixedname_t fixed;
+		dns_name_t *name;
 
 		/* Add AAAA and MX lookups. */
-
-		dns_name_format(query->lookup->name, namestr, sizeof(namestr));
+		dns_fixedname_init(&fixed);
+		name = dns_fixedname_name(&fixed);
+		dns_name_copy(query->lookup->name, name, NULL);
+		chase_cnamechain(msg, name);
+		dns_name_format(name, namestr, sizeof(namestr));
 		lookup = clone_lookup(query->lookup, ISC_FALSE);
 		if (lookup != NULL) {
 			strncpy(lookup->textname, namestr,