Пример #1
0
//=================================================================================================
//	SOCKET object definition
//
static tsk_object_t* tnet_socket_ctor(tsk_object_t * self, va_list * app)
{
	tnet_socket_t *sock = self;
	if(sock){
		int status;
		tsk_bool_t nonblocking;
		tsk_bool_t bindsocket;
		tsk_istr_t port;
		struct addrinfo *result = 0;
		struct addrinfo *ptr = 0;
		struct addrinfo hints;
		tnet_host_t local_hostname;

		const char *host = va_arg(*app, const char*);
#if defined(__GNUC__)
		sock->port = (tnet_port_t)va_arg(*app, unsigned);
#else
		sock->port = va_arg(*app, tnet_port_t);
#endif
		tsk_itoa(sock->port, &port);
		sock->type = va_arg(*app, tnet_socket_type_t);
		nonblocking = va_arg(*app, tsk_bool_t);
		bindsocket = va_arg(*app, tsk_bool_t);

		memset(local_hostname, 0, sizeof(local_hostname));

		/* Get the local host name */
		if(host != TNET_SOCKET_HOST_ANY && !tsk_strempty(host)){
			memcpy(local_hostname, host, tsk_strlen(host)>sizeof(local_hostname)-1 ? sizeof(local_hostname)-1 : tsk_strlen(host));
		}
		else{
			if(TNET_SOCKET_TYPE_IS_IPV6(sock->type)){
				memcpy(local_hostname, "::", 2);
			}
			else{
				memcpy(local_hostname, "0.0.0.0", 7);
			}
			//if((status = tnet_gethostname(&local_hostname)))
			//{
			//	TNET_PRINT_LAST_ERROR("gethostname have failed.");
			//	goto bail;
			//}
		}

		/* hints address info structure */
		memset(&hints, 0, sizeof(hints));
		hints.ai_family = TNET_SOCKET_TYPE_IS_IPV46(sock->type) ? AF_UNSPEC : (TNET_SOCKET_TYPE_IS_IPV6(sock->type) ? AF_INET6 : AF_INET);
		hints.ai_socktype = TNET_SOCKET_TYPE_IS_STREAM(sock->type) ? SOCK_STREAM : SOCK_DGRAM;
		hints.ai_protocol = TNET_SOCKET_TYPE_IS_STREAM(sock->type) ? IPPROTO_TCP : IPPROTO_UDP;
		hints.ai_flags = AI_PASSIVE
#if !TNET_UNDER_WINDOWS || _WIN32_WINNT>=0x600
			| AI_ADDRCONFIG
#endif
			;

		/* Performs getaddrinfo */
		if((status = tnet_getaddrinfo(local_hostname, port, &hints, &result))){
			TNET_PRINT_LAST_ERROR("tnet_getaddrinfo(family=%d, hostname=%s and port=%s) failed: [%s]", 
				hints.ai_family, local_hostname, port, tnet_gai_strerror(status));
			goto bail;
		}
		
		/* Find our address. */
		for(ptr = result; ptr; ptr = ptr->ai_next){
			sock->fd = tnet_soccket(ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol);
			if(ptr->ai_family != AF_INET6 && ptr->ai_family != AF_INET){
				continue;
			}
			
			if(bindsocket){
				/* Bind the socket */
				if((status = bind(sock->fd, ptr->ai_addr, ptr->ai_addrlen))){
					TNET_PRINT_LAST_ERROR("bind have failed.");
					tnet_socket_close(sock);
					continue;
				}

				/* Get local IP string. */
				if(status = tnet_get_ip_n_port(sock->fd , &sock->ip, &sock->port)) /* % */
				//if((status = tnet_getnameinfo(ptr->ai_addr, ptr->ai_addrlen, sock->ip, sizeof(sock->ip), 0, 0, NI_NUMERICHOST)))
				{
					TNET_PRINT_LAST_ERROR("Failed to get local IP and port.");
					tnet_socket_close(sock);
					continue;
				}
//				else{
//#if TNET_UNDER_WINDOWS
//					int index;
//					if((index = tsk_strindexOf(sock->ip, tsk_strlen(sock->ip), "%")) > 0){
//						*(sock->ip + index) = '\0';
//					}
//#endif
//				}
			}

			/* sets the real socket type (if ipv46) */
			if(ptr->ai_family == AF_INET6) {
				TNET_SOCKET_TYPE_SET_IPV6Only(sock->type);
			}
			else{
				TNET_SOCKET_TYPE_SET_IPV4Only(sock->type);
			}
			break;
		}
		
		/* Check socket validity. */
		if(!TNET_SOCKET_IS_VALID(sock)) {
			TNET_PRINT_LAST_ERROR("Invalid socket.");
			goto bail;
		}		

		/* To avoid "Address already in use" error */
		{
#if defined(SOLARIS)
			char yes = '1';
#else
			int yes = 1;
#endif
			if(setsockopt(sock->fd, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(int))){
				TNET_PRINT_LAST_ERROR("setsockopt(SO_REUSEADDR) have failed.");
			}
		}

		/* Sets the socket to nonblocking mode */
		if(nonblocking){
			if((status = tnet_sockfd_set_nonblocking(sock->fd))){
				goto bail;
			}
		}

bail:
		/* Free addrinfo */
		tnet_freeaddrinfo(result);

		/* Close socket if failed. */
		if(status && TNET_SOCKET_IS_VALID(sock)){
			tnet_socket_close(sock);
		}

	}
	return self;
}
Пример #2
0
/**@ingroup tnet_socket_group
* Creates a new socket.
* To check that the returned socket is valid use @ref TNET_SOCKET_IS_VALID function.
* @param host FQDN (e.g. www.doubango.org) or IPv4/IPv6 IP string.
* @param port The local/remote port used to receive/send data. Set the port value to @ref TNET_SOCKET_PORT_ANY to bind to a random port.
* @param type The type of the socket. See @ref tnet_socket_type_t.
* @param nonblocking Indicates whether to create non-blocking socket.
* @param bindsocket Indicates whether to bind the newly created socket or not.
* @retval @ref tnet_socket_t object.
* @sa @ref tnet_socket_create.
*/
tnet_socket_t* tnet_socket_create_2(const char* host, tnet_port_t port_, tnet_socket_type_t type, tsk_bool_t nonblocking, tsk_bool_t bindsocket)
{
	tnet_socket_t *sock;
	if ((sock = tsk_object_new(tnet_socket_def_t))) {
		int status;
		tsk_istr_t port;
		struct addrinfo *result = tsk_null;
		struct addrinfo *ptr = tsk_null;
		struct addrinfo hints;
		tnet_host_t local_hostname;

		sock->port = port_;
		tsk_itoa(sock->port, &port);
		sock->type = type;

		memset(local_hostname, 0, sizeof(local_hostname));

		/* Get the local host name */
		if (host != TNET_SOCKET_HOST_ANY && !tsk_strempty(host)){
			memcpy(local_hostname, host, tsk_strlen(host) > sizeof(local_hostname) - 1 ? sizeof(local_hostname) - 1 : tsk_strlen(host));
		}
		else{
			if (TNET_SOCKET_TYPE_IS_IPV6(sock->type)){
				memcpy(local_hostname, "::", 2);
			}
			else {
				memcpy(local_hostname, "0.0.0.0", 7);
			}
		}

		/* hints address info structure */
		memset(&hints, 0, sizeof(hints));
		hints.ai_family = TNET_SOCKET_TYPE_IS_IPV46(sock->type) ? AF_UNSPEC : (TNET_SOCKET_TYPE_IS_IPV6(sock->type) ? AF_INET6 : AF_INET);
		hints.ai_socktype = TNET_SOCKET_TYPE_IS_STREAM(sock->type) ? SOCK_STREAM : SOCK_DGRAM;
		hints.ai_protocol = TNET_SOCKET_TYPE_IS_STREAM(sock->type) ? IPPROTO_TCP : IPPROTO_UDP;
		hints.ai_flags = AI_PASSIVE
#if !TNET_UNDER_WINDOWS || _WIN32_WINNT>=0x600
			| AI_ADDRCONFIG
#endif
			;

		/* Performs getaddrinfo */
		if ((status = tnet_getaddrinfo(local_hostname, port, &hints, &result))) {
			TNET_PRINT_LAST_ERROR("tnet_getaddrinfo(family=%d, hostname=%s and port=%s) failed: [%s]",
				hints.ai_family, local_hostname, port, tnet_gai_strerror(status));
			goto bail;
	}

		/* Find our address. */
		for (ptr = result; ptr; ptr = ptr->ai_next){
			sock->fd = (tnet_fd_t)tnet_soccket(ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol);
			if (ptr->ai_family != AF_INET6 && ptr->ai_family != AF_INET){
				continue;
			}
			/* To avoid "Address already in use" error
			* Check issue 368 (https://code.google.com/p/doubango/issues/detail?id=368) to understand why it's not used for UDP/DTLS.
			*/
			//
			if (TNET_SOCKET_TYPE_IS_STREAM(sock->type)) {
				if ((status = tnet_sockfd_reuseaddr(sock->fd, 1))) {
					// do not break...continue
				}
			}

			if (bindsocket){
				/* Bind the socket */
				if ((status = bind(sock->fd, ptr->ai_addr, (int)ptr->ai_addrlen))){
					TNET_PRINT_LAST_ERROR("bind to [%s:%s]have failed", local_hostname, port);
					tnet_socket_close(sock);
					continue;
				}

				/* Get local IP string. */
				if ((status = tnet_get_ip_n_port(sock->fd, tsk_true/*local*/, &sock->ip, &sock->port))) /* % */
					//if((status = tnet_getnameinfo(ptr->ai_addr, ptr->ai_addrlen, sock->ip, sizeof(sock->ip), 0, 0, NI_NUMERICHOST)))
				{
					TNET_PRINT_LAST_ERROR("Failed to get local IP and port.");
					tnet_socket_close(sock);
					continue;
				}
			}

			/* sets the real socket type (if ipv46) */
			if (ptr->ai_family == AF_INET6) {
				TNET_SOCKET_TYPE_SET_IPV6Only(sock->type);
			}
			else {
				TNET_SOCKET_TYPE_SET_IPV4Only(sock->type);
			}
			break;
		}

		/* Check socket validity. */
		if (!TNET_SOCKET_IS_VALID(sock)) {
			TNET_PRINT_LAST_ERROR("Invalid socket.");
			goto bail;
		}

#if TNET_UNDER_IPHONE || TNET_UNDER_IPHONE_SIMULATOR
		/* disable SIGPIPE signal */
		{
			int yes = 1;
			if (setsockopt(sock->fd, SOL_SOCKET, SO_NOSIGPIPE, (char*)&yes, sizeof(int))){
				TNET_PRINT_LAST_ERROR("setsockopt(SO_NOSIGPIPE) have failed.");
			}
		}
#endif /* TNET_UNDER_IPHONE */

		/* Sets the socket to nonblocking mode */
		if(nonblocking){
			if((status = tnet_sockfd_set_nonblocking(sock->fd))){
				goto bail;
			}
		}

	bail:
		/* Free addrinfo */
		tnet_freeaddrinfo(result);

		/* Close socket if failed. */
		if (status){
			if (TNET_SOCKET_IS_VALID(sock)){
				tnet_socket_close(sock);
			}
			return tsk_null;
		}
}

	return sock;
}