Function build_req_buf_from_sip_req

msg_translator.c:2142–2398

}

char * build_req_buf_from_sip_req( struct sip_msg* msg,
								unsigned int *returned_len,
								const struct socket_info* send_sock, int proto,
								str *via_params, unsigned int flags)
{
	unsigned int len, new_len, received_len, rport_len, uri_len, via_len, body_delta;
	char *line_buf, *received_buf, *rport_buf, *new_buf, *buf, *id_buf;
	unsigned int offset, s_offset, size, id_len;
	struct lump *anchor, *via_insert_param;
	str branch, extra_params, body = STR_NULL;
	struct hostport hp;

	id_buf=0;
	id_len=0;
	via_insert_param=0;
	extra_params.len=0;
	extra_params.s=0;
	uri_len=0;
	buf=msg->buf;
	len=msg->len;
	received_len=0;
	rport_len=0;
	new_buf=0;
	received_buf=0;
	rport_buf=0;
	line_buf=0;
	int via1_deleted = 0;

	if (msg->path_vec.len) {
		if (insert_path_as_route(msg, &msg->path_vec) < 0) {
			LM_ERR("adding path lumps failed\n");
			goto error;
		}
	}

	/* Calculate message body difference and adjust
	 * Content-Length
	 */
	body_delta = calculate_body_diff( msg, send_sock);
	if (adjust_clen(msg, body_delta, proto) < 0) {
		LM_ERR("failed to adjust Content-Length\n");
		goto error;
	}

	if (flags&MSG_TRANS_NOVIA_FLAG)
		goto build_msg;

	/* add id if tcp-based protocol  */
	if (is_tcp_based_proto(msg->rcv.proto)) {
		if  ((id_buf=id_builder(msg, &id_len))==0){
			LM_ERR("id_builder failed\n");
			goto error; /* we don't need to free anything,
			                 nothing alloc'ed yet*/
		}
		LM_DBG("id added: <%.*s>, rcv proto=%d\n",
				(int)id_len, id_buf, msg->rcv.proto);
		/* if there was already something there, simply copy them */
		if (via_params && via_params->len != 0) {