int parse_hostname_to_addr(const char *server, struct sockaddr_storage *ss, socklen_t *socklen, int default_port){
struct addrinfo hints,*res=NULL;
char port[6];
char host[NI_MAXHOST];
int port_int=default_port;
int ret;
linphone_parse_host_port(server,host,sizeof(host),&port_int);
snprintf(port, sizeof(port), "%d", port_int);
memset(&hints,0,sizeof(hints));
hints.ai_family=AF_UNSPEC;
hints.ai_socktype=SOCK_DGRAM;
hints.ai_protocol=IPPROTO_UDP;
ret=getaddrinfo(host,port,&hints,&res);
if (ret!=0){
ms_error("getaddrinfo() failed for %s:%s : %s",host,port,gai_strerror(ret));
return -1;
}
if (!res) return -1;
memcpy(ss,res->ai_addr,res->ai_addrlen);
*socklen=res->ai_addrlen;
freeaddrinfo(res);
return 0;
}
void linphone_core_resolve_stun_server(LinphoneCore *lc){
/*
* WARNING: stun server resolution only done in IPv4.
* TODO: use IPv6 resolution if linphone_core_ipv6_enabled()==TRUE and use V4Mapped addresses for ICE gathering.
*/
const char *server=lc->net_conf.stun_server;
if (lc->sal && server){
char host[NI_MAXHOST];
int port=3478;
linphone_parse_host_port(server,host,sizeof(host),&port);
lc->net_conf.stun_res=sal_resolve_a(lc->sal,host,port,AF_INET,(SalResolverCallback)stun_server_resolved,lc);
}
}
void linphone_nat_policy_resolve_stun_server(LinphoneNatPolicy *policy) {
const char *service = NULL;
/*
* WARNING: stun server resolution only done in IPv4.
* TODO: use IPv6 resolution if linphone_core_ipv6_enabled()==TRUE and use V4Mapped addresses for ICE gathering.
*/
if (linphone_nat_policy_stun_server_activated(policy)
&& (policy->lc->sal != NULL)
&& !policy->stun_resolver_context) {
char host[NI_MAXHOST];
int port = 3478;
linphone_parse_host_port(policy->stun_server, host, sizeof(host), &port);
if (linphone_nat_policy_turn_enabled(policy)) service = "turn";
else if (linphone_nat_policy_stun_enabled(policy)) service = "stun";
if (service != NULL) {
policy->stun_resolver_context = sal_resolve(policy->lc->sal, service, "udp", host, port, AF_INET, (SalResolverCallback)stun_server_resolved, policy);
}
}
}
