Function t_retransmit_reply

modules/tm/t_reply.c:1102–1156

Retransmits the last sent inbound reply. * input: p_msg==request for which I want to retransmit an associated reply * Returns -1 - error * 1 - OK */

 *           1 - OK
 */
int t_retransmit_reply( struct cell *t )
{
	static char b[BUF_SIZE];
	int len;
	str cb_s;

	/* we need to lock the transaction as messages from
	   upstream may change it continuously */
	LOCK_REPLIES( t );

	if (!t->uas.response.buffer.s) {
		LM_DBG("nothing to retransmit\n");
		goto error;
	}

	/* response.dst.send_sock should be valid all the time now, as it's taken
	   from original request -bogdan */
	if (t->uas.response.dst.send_sock==0) {
		LM_CRIT("something to retransmit, but send_sock is NULL\n");
		goto error;
	}

	len=t->uas.response.buffer.len;
	if ( len==0 || len>BUF_SIZE )  {
		LM_DBG("zero length or too big to retransmit: %d\n", len);
		goto error;
	}
	memcpy( b, t->uas.response.buffer.s, len );
	UNLOCK_REPLIES( t );

	/* send the buffer out */
	if (t->uas.request && t->uas.request->flags & tcp_no_new_conn_rplflag)
		tcp_no_new_conn = 1;

	if (SEND_PR_BUFFER( & t->uas.response, b, len )==0) {
		/* success */
		LM_DBG("buf=%p: %.9s..., shmem=%p: %.9s\n",b, b,
			t->uas.response.buffer.s, t->uas.response.buffer.s );
		if (has_tran_tmcbs( t, TMCB_MSG_SENT_OUT) ) {
			cb_s.s = b;
			cb_s.len = len;
			set_extra_tmcb_params( &cb_s, &t->uas.response.dst);
			run_trans_callbacks( TMCB_MSG_SENT_OUT, t,
					NULL, FAKED_REPLY, t->uas.status);
		}
	}

	tcp_no_new_conn = 0;

	return 1;

error:
	UNLOCK_REPLIES(t);
	return -1;
}


int t_reply( struct cell *t, struct sip_msg* p_msg, unsigned int code,