int debug = sip_debug_test_pvt(p);
const char *e;
int error = 0;
+ int oldmethod = p->method;
+ int acked = 0;
/* Get Method and Cseq */
cseq = get_header(req, "Cseq");
if (seqno == p->pendinginvite) {
p->invitestate = INV_TERMINATED;
p->pendinginvite = 0;
- __sip_ack(p, seqno, 1 /* response */, 0);
+ acked = __sip_ack(p, seqno, 1 /* response */, 0);
if (find_sdp(req)) {
if (process_sdp(p, req, SDP_T38_NONE))
return -1;
} else if (p->glareinvite == seqno) {
/* handle ack for the 491 pending sent for glareinvite */
p->glareinvite = 0;
- __sip_ack(p, seqno, 1, 0);
+ acked = __sip_ack(p, seqno, 1, 0);
+ }
+ if (!acked) {
+ /* Got an ACK that did not match anything. Ignore
+ * silently and restore previous method */
+ p->method = oldmethod;
}
- /* Got an ACK that we did not match. Ignore silently */
if (!p->lastinvite && ast_strlen_zero(p->randdata)) {
pvt_set_needdestroy(p, "unmatched ACK");
}