Function path_rr_callback

modules/path/path.c:72–153

* rr callback */

 * rr callback
 */
void path_rr_callback(struct sip_msg *_m, str *r_param, void *cb_param)
{
	static str unescape_buf;

	param_hooks_t hooks;
	param_t *params;
	param_t *first_param;
	str received = {0, 0};
	str transport = {0, 0};
	str dst_uri = {0, 0};
	char *p;

	if (parse_params(r_param, CLASS_ANY, &hooks, &params) != 0) {
		LM_ERR("failed to parse route parameters\n");
		return;
	}

	first_param = params;

	while(params)
	{
		if (params->name.len == 8 &&
		    !strncasecmp(params->name.s, "received", params->name.len)) {

			received = params->body;
			if (pkg_str_extend(&unescape_buf, received.len + 1) != 0) {
				LM_ERR("oom\n");
				goto out1;
			}

			if (unescape_param(&received, &unescape_buf) != 0) {
				LM_ERR("failed to unescape received=%.*s\n",
				       received.len, received.s);
				goto out1;
			}

			/* if there's a param here, it has to be ;transport= */
			if ((p = q_memchr(unescape_buf.s, ';', unescape_buf.len))) {
				received.len = p - unescape_buf.s;

				if ((p = q_memchr(p, '=', unescape_buf.len))) {
					transport.s = p + 1;
					transport.len = unescape_buf.s + unescape_buf.len - transport.s;
				}
			}

			break;
		}

		params = params->next;
	}

	LM_DBG("extracted received=%.*s, transport=%.*s\n",
	       received.len, received.s, transport.len, transport.s);

	if (received.len > 0) {
		if (transport.len > 0) {
			dst_uri.len = received.len + PATH_TRANS_PARAM_LEN + 1 + transport.len;