Socket& Socket::bind(int (*try_port)()) {
if (try_port == 0)
try_port = &rand;
SBL_ASSERT(is_valid());
struct sockaddr_in addr;
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = INADDR_ANY;
int status = -1;
for (int n = 0; n < 100 && status < 0; n++) {
addr.sin_port = htons(try_port());
status = ::bind(id(), (struct sockaddr *) &addr, sizeof(addr));
}
SBL_THROW_IF(status < 0, "unable to find a port to bind");
return *this;
}
error_code
relaylib_start (RIP_MANAGER_INFO* rmi,
BOOL search_ports, u_short relay_port, u_short max_port,
u_short *port_used, char *if_name,
int max_connections,
char *relay_ip,
int have_metadata)
{
int ret;
#ifdef WIN32
WSADATA wsd;
#endif
RELAYLIB_INFO* rli = &rmi->relaylib_info;
/* GCS: These were globally initialized... */
rli->m_listensock = SOCKET_ERROR;
rli->m_running = FALSE;
rli->m_running_accept = FALSE;
rli->m_running_send = FALSE;
debug_printf ("relaylib_start()\n");
rmi->relay_list = 0;
rmi->relay_list_len = 0;
#ifdef WIN32
if (WSAStartup(MAKEWORD(2,2), &wsd) != 0) {
debug_printf ("relaylib_init(): SR_ERROR_CANT_BIND_ON_PORT\n");
return SR_ERROR_CANT_BIND_ON_PORT;
}
#endif
if (relay_port < 1 || !port_used) {
debug_printf ("relaylib_init(): SR_ERROR_INVALID_PARAM\n");
return SR_ERROR_INVALID_PARAM;
}
#ifndef WIN32
// catch a SIGPIPE if send fails
signal(SIGPIPE, catch_pipe);
#endif
rli->m_sem_not_connected = threadlib_create_sem();
rmi->relay_list_sem = threadlib_create_sem();
threadlib_signal_sem (&rmi->relay_list_sem);
// NOTE: we need to signal it here in case we try to destroy
// relaylib before the thread starts!
threadlib_signal_sem (&rli->m_sem_not_connected);
//m_max_connections = max_connections;
//m_have_metadata = have_metadata;
*port_used = 0;
if (!search_ports)
max_port = relay_port;
for(;relay_port <= max_port; relay_port++) {
ret = try_port (rli, (u_short) relay_port, if_name, relay_ip);
if (ret == SR_ERROR_CANT_BIND_ON_PORT)
continue; // Keep searching.
if (ret == SR_SUCCESS) {
*port_used = relay_port;
debug_printf ("Relay: Listening on port %d\n", relay_port);
ret = SR_SUCCESS;
if (!rli->m_running) {
ret = relaylib_start_threads (rmi);
}
return ret;
} else {
return ret;
}
}
return SR_ERROR_CANT_BIND_ON_PORT;
}
