Function grep_sock_info_ext

socket_info.c:387–504

checks if the proto: host:port is one of the address we listen on * and returns the corresponding socket_info structure. * if port==0, the port number is ignored * if proto==0 (PROTO_NONE) the protocol is ignored * returns 0 if not found * WARNING: uses str2ip6 so it will overwrite any previous * unsaved result of this function (static buffer) */

 *  unsaved result of this function (static buffer)
 */
const struct socket_info* grep_sock_info_ext(str* host, unsigned short port,
										unsigned short proto, int check_tags)
{
	char* hname;
	int h_len;
	const struct socket_info* si = NULL;
	struct socket_info_full* sif;
	struct socket_info_full ** list;
	unsigned short c_proto;
	struct ip_addr* ip6;

	h_len=host->len;
	hname=host->s;

	if (proto == PROTO_BOND) {
		if (!check_tags)
			goto not_found;
		for (sif = bond_sockets; sif; sif = sif->next) {
			si = &sif->socket_info;
			if (h_len == si->name.len &&
			strncasecmp(hname, si->name.s, si->name.len) == 0)
				goto found;
		}
		goto not_found;
	}

	if ((h_len>2)&&((*hname)=='[')&&(hname[h_len-1]==']')){
		/* ipv6 reference, skip [] */
		hname++;
		h_len-=2;
	}

	c_proto=proto?proto:PROTO_UDP;
	do{
		/* "proto" is all the time valid here */
		list=get_sock_info_list(c_proto);

		if (list==0){
			LM_WARN("unknown proto %d\n", c_proto);
			goto not_found; /* false */
		}
		for (sif=*list; sif; sif=sif->next){
			si = &sif->socket_info;
			LM_DBG("checking if host==us: %d==%d && "
					" [%.*s] == [%.*s]\n",
						h_len,
						si->name.len,
						h_len, hname,
						si->name.len, si->name.s
				);

			if (check_tags && port==0 && si->tag.s && h_len==si->tag.len &&
			strncasecmp(hname, si->tag.s, si->tag.len)==0 )
				goto found;

			if (port) {
				LM_DBG("checking if port %d matches port %d\n",
						si->port_no, port);