Function get_via_branch

modules/rtpengine/rtpengine_funcs.c:251–273

* Extract branch from Via header */

 * Extract branch from Via header
 */
int
get_via_branch(struct sip_msg* msg, int vianum, str* _branch)
{
	struct via_body *via;
	struct via_param *p;

	if (parse_headers(msg, (vianum == 1) ? HDR_VIA1_F : HDR_VIA2_F, 0) < 0)
		return -1;

	via = (vianum == 1) ? msg->via1 : msg->via2;
	if (!via)
		return -1;
	for (p = via->param_lst; p; p = p->next)
	{
		if (p->name.len == strlen("branch")
				&& strncasecmp(p->name.s, "branch", strlen("branch")) == 0) {
			_branch->s = p->value.s;
			_branch->len = p->value.len;
			return 0;
		}
	}
	return -1;
}