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1209. [bug] Dig, host, nslookup were not checking the message ids

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on the responses. [RT #2454]
This commit is contained in:
Mark Andrews 2002-02-21 04:48:00 +00:00
parent fcde24ec36
commit e53a5a116f
2 changed files with 36 additions and 1 deletions
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3
CHANGES
View file

@ -1,3 +1,6 @@
1209. [bug] Dig, host, nslookup were not checking the message ids
on the responses. [RT #2454]
1208. [bug] dns_master_load*() failed to log a error message if
an error was detected when parsing the ownername of
a record. [RT #2448]

34
bin/dig/dighost.c
View file

@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: dighost.c,v 1.240 2002/02/20 03:32:56 marka Exp $ */
/* $Id: dighost.c,v 1.241 2002/02/21 04:48:00 marka Exp $ */
/*
* Notice to programmers: Do not use this code as an example of how to
@ -2118,6 +2118,8 @@ recv_done(isc_task_t *task, isc_event_t *event) {
dig_lookup_t *n, *l;
isc_boolean_t docancel = ISC_FALSE;
unsigned int parseflags;
dns_messageid_t id;
unsigned int msgflags;
UNUSED(task);
INSIST(!free_now);
@ -2172,6 +2174,36 @@ recv_done(isc_task_t *task, isc_event_t *event) {
b = ISC_LIST_HEAD(sevent->bufferlist);
ISC_LIST_DEQUEUE(sevent->bufferlist, &query->recvbuf, link);
result = dns_message_peekheader(b, &id, &msgflags);
if (result != ISC_R_SUCCESS || l->sendmsg->id != id) {
if (l->tcp_mode) {
if (result == ISC_R_SUCCESS)
printf(";; ERROR: ID mismatch\n");
else
printf(";; ERROR: runt message\n");
isc_event_free(&event);
clear_query(query);
check_next_lookup(l);
UNLOCK_LOOKUP;
return;
}
if (result == ISC_R_SUCCESS)
printf(";; Warning: ID mismatch\n");
else
printf(";; Warning: runt message received\n");
isc_buffer_invalidate(&query->recvbuf);
isc_buffer_init(&query->recvbuf, query->recvspace, COMMSIZE);
ISC_LIST_ENQUEUE(query->recvlist, &query->recvbuf, link);
result = isc_socket_recvv(query->sock, &query->recvlist, 1,
global_task, recv_done, query);
check_result(result, "isc_socket_recvv");
recvcount++;
isc_event_free(&event);
UNLOCK_LOOKUP;
return;
}
result = dns_message_create(mctx, DNS_MESSAGE_INTENTPARSE, &msg);
check_result(result, "dns_message_create");