mir/bind
2
0
Fork 0
mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-09-01 06:55:30 +00:00
Code Issues Releases Wiki Activity

Retry a lookup in TCP mode after getting a reply with TC flag set

Browse Source
This commit is contained in:
Michael Sawyer
2000-09-11 19:38:22 +00:00
parent 53df51bf45
commit e9429ff25a
1 changed files with 16 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
bin/dig/dighost.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/ */
/* $Id: dighost.c,v 1.118 2000/08/28 05:06:18 marka Exp $ */ /* $Id: dighost.c,v 1.119 2000/09/11 19:38:22 mws Exp $ */
/* /*
* Notice to programmers: Do not use this code as an example of how to * Notice to programmers: Do not use this code as an example of how to
@@ -1973,7 +1973,8 @@ recv_done(isc_task_t *task, isc_event_t *event) {
debug("before parse starts"); debug("before parse starts");
result = dns_message_parse(msg, b, ISC_TRUE); result = dns_message_parse(msg, b, ISC_TRUE);
if (result != ISC_R_SUCCESS) { if (result != ISC_R_SUCCESS) {
printf(";; Got bad packet:\n"); printf(";; Got bad packet: %s\n",
dns_result_totext(result));
hex_dump(b); hex_dump(b);
query->waiting_connect = ISC_FALSE; query->waiting_connect = ISC_FALSE;
if (!l->tcp_mode) { if (!l->tcp_mode) {
@@ -1989,6 +1990,19 @@ recv_done(isc_task_t *task, isc_event_t *event) {
UNLOCK_LOOKUP; UNLOCK_LOOKUP;
return; return;
} }
if ((msg->flags & DNS_MESSAGEFLAG_TC) != 0) {
printf(";; Truncated, retrying in TCP mode.\n");
n = requeue_lookup(l, ISC_TRUE);
n->tcp_mode = ISC_TRUE;
dns_message_destroy(&msg);
isc_event_free(&event);
clear_query(query);
cancel_lookup(l);
check_next_lookup(l);
UNLOCK_LOOKUP;
return;
}
if (key != NULL) { if (key != NULL) {
result = dns_tsig_verify(&query->recvbuf, msg, result = dns_tsig_verify(&query->recvbuf, msg,
NULL, NULL); NULL, NULL);