/*
* sip_config_get_nat_ipaddr()
*
* Get the nat IP address.
* Note: the IP Address is returned in the non-Telecaster
* SIP format, which is not byte reversed.
* Eg. 0xac2c33f8 = 161.44.51.248
*/
void
sip_config_get_nat_ipaddr (cpr_ip_addr_t *ip_addr)
{
cpr_ip_addr_t IPAddress;
char address[MAX_IPADDR_STR_LEN];
int dnsErrorCode = 1;
if (redirected_nat_ipaddr.type == CPR_IP_ADDR_INVALID) {
config_get_string(CFGID_NAT_ADDRESS, address, sizeof(address));
if ((cpr_strcasecmp(address, UNPROVISIONED) != 0) && (address[0] != 0)) {
dnsErrorCode = dnsGetHostByName(address, &IPAddress, 100, 1);
}
if (dnsErrorCode == 0) {
util_ntohl(ip_addr, &IPAddress);
return ;
} else {
/*
* If the NAT address is not provisioned or
* unavailable, return the local address instead.
*/
sip_config_get_net_device_ipaddr(ip_addr);
return;
}
} else {
*ip_addr = redirected_nat_ipaddr;
return ;
}
}
int
sip_dns_gethostbysrvorname (char *hname,
cpr_ip_addr_t *ipaddr_ptr,
uint16_t *port)
{
/*
* OK according to rfc2543bis-03
* 1. If the destination is an IP address it is used. If no port is
* specified then use 5060
* 2. If the destination specifies the default port (5060) or no port
* then try SRV
* 3. If the destination specifies a port number other than 5060 or
* there are no SRV records A record lookup
*/
srv_handle_t srv_order = NULL;
int rc=DNS_ERR_NOHOST;
if ((*port == SIP_WELL_KNOWN_PORT) || (*port == 0)) {
rc = sip_dns_gethostbysrv(hname, ipaddr_ptr, port, &srv_order, FALSE);
}
if (rc != DNS_OK) {
rc = dnsGetHostByName(hname, ipaddr_ptr, 100, 1);
}
if (srv_order) {
dnsFreeSrvHandle(srv_order);
}
return rc;
}