/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 * Jonathan Schleifer * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #ifndef __STDC_LIMIT_MACROS # define __STDC_LIMIT_MACROS #endif #ifndef __STDC_CONSTANT_MACROS # define __STDC_CONSTANT_MACROS #endif #import "objfw-defs.h" #ifdef OF_HAVE_SYS_SOCKET_H # include #endif #import "OFStreamSocket.h" #ifdef _WIN32 # include #endif /*! @file */ @class OFTCPSocket; @class OFString; #ifdef OF_HAVE_BLOCKS /*! * @brief A block which is called when the socket connected. * * @param socket The socket which connected * @param exception An exception which occurred while connecting the socket or * nil on success */ typedef void (^of_tcpsocket_async_connect_block_t)(OFTCPSocket *socket, OFException *exception); /*! * @brief A block which is called when the socket accepted a connection. * * @param socket The socket which accepted the connection * @param acceptedSocket The socket which has been accepted * @param exception An exception which occurred while accepting the socket or * nil on success * @return A bool whether the same block should be used for the next incoming * connection */ typedef bool (^of_tcpsocket_async_accept_block_t)(OFTCPSocket *socket, OFTCPSocket *acceptedSocket, OFException *exception); #endif /*! * @brief A class which provides functions to create and use TCP sockets. * * To connect to a server, create a socket and connect it. * To create a server, create a socket, bind it and listen on it. */ @interface OFTCPSocket: OFStreamSocket { bool _listening; struct sockaddr_storage *_sockAddr; socklen_t _sockAddrLen; OFString *_SOCKS5Host; uint16_t _SOCKS5Port; } #ifdef OF_HAVE_PROPERTIES @property (readonly, getter=isListening) bool listening; @property (copy) OFString *SOCKS5Host; @property uint16_t SOCKS5Port; #endif /*! * @brief Sets the global SOCKS5 proxy host to use when creating a new socket * * @param SOCKS5Host The host to use as a SOCKS5 proxy when creating a new * socket */ + (void)setSOCKS5Host: (OFString*)SOCKS5Host; /*! * @brief Returns the host to use as a SOCKS5 proxy when creating a new socket * * @return The host to use as a SOCKS5 proxy when creating a new socket */ + (OFString*)SOCKS5Host; /*! * @brief Sets the global SOCKS5 proxy port to use when creating a new socket * * @param SOCKS5Port The port to use as a SOCKS5 proxy when creating a new socket */ + (void)setSOCKS5Port: (uint16_t)SOCKS5Port; /*! * @brief Returns the port to use as a SOCKS5 proxy when creating a new socket * * @return The port to use as a SOCKS5 proxy when creating a new socket */ + (uint16_t)SOCKS5Port; /*! * @brief Sets the host to use as a SOCKS5 proxy. * * @param host The host to use as a SOCKS5 proxy */ - (void)setSOCKS5Host: (OFString*)host; /*! * @brief Returns the host to use as a SOCKS5 proxy. * * @return The host to use as a SOCKS5 proxy */ - (OFString*)SOCKS5Host; /*! * @brief Sets the port to use on the SOCKS5 proxy. * * The default port is 1080. * * @param port The port to use on the SOCKS5 proxy */ - (void)setSOCKS5Port: (uint16_t)port; /*! * @brief Returns the port to use on the SOCKS5 proxy. * * @return The port to use on the SOCKS5 proxy */ - (uint16_t)SOCKS5Port; /*! * @brief Connect the OFTCPSocket to the specified destination. * * @param host The host to connect to * @param port The port on the host to connect to */ - (void)connectToHost: (OFString*)host port: (uint16_t)port; #ifdef OF_HAVE_THREADS /*! * @brief Asyncronously connect the OFTCPSocket to the specified destination. * * @param host The host to connect to * @param port The port on the host to connect to * @param target The target on which to call the selector once the connection * has been established * @param selector The selector to call on the target. The signature must be * void (OFTCPSocket *socket, OFException *exception). */ - (void)asyncConnectToHost: (OFString*)host port: (uint16_t)port target: (id)target selector: (SEL)selector; # ifdef OF_HAVE_BLOCKS /*! * @brief Asyncronously connect the OFTCPSocket to the specified destination. * * @param host The host to connect to * @param port The port on the host to connect to * @param block The block to execute once the connection has been established */ - (void)asyncConnectToHost: (OFString*)host port: (uint16_t)port block: (of_tcpsocket_async_connect_block_t)block; # endif #endif /*! * @brief Bind the socket on the specified port and host. * * @param host The host to bind to. Use @"0.0.0.0" for IPv4 or @"::" for IPv6 * to bind to all. * @param port The port to bind to. If the port is 0, an unused port will be * chosen, which can be obtained using the return value. * @return The port the socket was bound to */ - (uint16_t)bindToHost: (OFString*)host port: (uint16_t)port; /*! * @brief Listen on the socket. * * @param backLog Maximum length for the queue of pending connections. */ - (void)listenWithBackLog: (int)backLog; /*! * @brief Listen on the socket. */ - (void)listen; /*! * @brief Accept an incoming connection. * * @return An autoreleased OFTCPSocket for the accepted connection. */ - (instancetype)accept; /*! * @brief Asyncronously accept an incoming connection. * * @param target The target on which to execute the selector when a new * connection has been accepted. The method returns whether the * next incoming connection should be accepted by the specified * block as well. * @param selector The selector to call on the target. The signature must be * bool (OFTCPSocket *socket, OFTCPSocket *acceptedSocket, * OFException *exception). */ - (void)asyncAcceptWithTarget: (id)target selector: (SEL)selector; #ifdef OF_HAVE_BLOCKS /*! * @brief Asyncronously accept an incoming connection. * * @param block The block to execute when a new connection has been accepted. * Returns whether the next incoming connection should be accepted * by the specified block as well. */ - (void)asyncAcceptWithBlock: (of_tcpsocket_async_accept_block_t)block; #endif /*! * @brief Enable or disable keep alives for the connection. * * @param enable Whether to enable or disable keep alives for the connection */ - (void)setKeepAlivesEnabled: (bool)enable; /*! * @brief Returns the remote address of the socket. * * Only works with accepted sockets! * * @return The remote address as a string */ - (OFString*)remoteAddress; /*! * @brief Returns whether the socket is a listening socket. * * @return Whether the socket is a listening socket */ - (bool)isListening; @end #ifdef __cplusplus extern "C" { #endif extern Class of_tls_socket_class; #ifdef __cplusplus } #endif