/*constructor for channels creating an outgoing connection
* bindip local ip address to bind on, typically 0.0.0.0 or ::0
* locaport locaport to use for binding, can be set to 0 if port doesn't matter
* peer_cname canonical name of remote host, used for TLS verification
* peername peer's hostname, either ip address or DNS name
* pee_port peer's port to connect to.
*/
void belle_sip_channel_init(belle_sip_channel_t *obj, belle_sip_stack_t *stack,const char *bindip,int localport,const char *peer_cname, const char *peername, int peer_port){
/*to initialize our base class:*/
belle_sip_channel_set_socket(obj,-1,NULL);
/*then initialize members*/
obj->ai_family=AF_INET;
obj->peer_cname=peer_cname ? belle_sip_strdup(peer_cname) : NULL;
obj->peer_name=belle_sip_strdup(peername);
obj->peer_port=peer_port;
obj->stack=stack;
if (bindip){
if (strcmp(bindip,"::0")!=0 && strcmp(bindip,"0.0.0.0")!=0)
obj->local_ip=belle_sip_strdup(bindip);
if (strchr(bindip,':')!=NULL)
obj->ai_family=AF_INET6;
}
obj->local_port=localport;
obj->simulated_recv_return=1;/*not set*/
if (peername){
/*check if we are given a real dns name or just an ip address*/
struct addrinfo *ai=belle_sip_ip_address_to_addrinfo(AF_UNSPEC,peername,peer_port);
if (ai) freeaddrinfo(ai);
else obj->has_name=TRUE;
}
belle_sip_channel_input_stream_reset(&obj->input_stream);
update_inactivity_timer(obj,FALSE);
}
BELLE_SIP_INSTANCIATE_CUSTOM_VPTR_END
belle_sip_channel_t * belle_sip_channel_new_udp(belle_sip_stack_t *stack, int sock, const char *bindip, int localport, const char *dest, int port){
belle_sip_udp_channel_t *obj=belle_sip_object_new(belle_sip_udp_channel_t);
belle_sip_channel_init((belle_sip_channel_t*)obj,stack,bindip,localport,NULL,dest,port);
belle_sip_channel_set_socket((belle_sip_channel_t*)obj,sock,NULL);
return (belle_sip_channel_t*)obj;
}
static int tls_channel_connect(belle_sip_channel_t *obj, const struct addrinfo *ai){
int err= stream_channel_connect((belle_sip_stream_channel_t*)obj,ai);
if (err==0){
belle_sip_socket_t sock=belle_sip_source_get_socket((belle_sip_source_t*)obj);
belle_sip_channel_set_socket(obj,sock,(belle_sip_source_func_t)tls_process_data);
return 0;
}
return -1;
}
belle_sip_channel_t * belle_sip_channel_new_udp_with_addr(belle_sip_stack_t *stack, int sock, const char *bindip, int localport, const struct addrinfo *peer){
belle_sip_udp_channel_t *obj=belle_sip_object_new(belle_sip_udp_channel_t);
belle_sip_channel_init_with_addr((belle_sip_channel_t*)obj,stack,peer->ai_addr, peer->ai_addrlen);
obj->base.local_port=localport;
belle_sip_channel_set_socket((belle_sip_channel_t*)obj,sock,NULL);
/*this lookups the local address*/
udp_channel_connect((belle_sip_channel_t*)obj,peer);
return (belle_sip_channel_t*)obj;
}
