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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Crypto++: socketft.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.3.2 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Compound List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Compound Members</a> | <a class="qindex" href="globals.html">File Members</a></div><h1>socketft.h</h1><div class="fragment"><pre>00001 <span class="preprocessor">#ifndef CRYPTOPP_SOCKETFT_H</span>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_SOCKETFT_H</span>00003 <span class="preprocessor"></span>00004 <span class="preprocessor">#include "config.h"</span>00005 00006 <span class="preprocessor">#ifdef SOCKETS_AVAILABLE</span>00007 <span class="preprocessor"></span>00008 <span class="preprocessor">#include "network.h"</span>00009 <span class="preprocessor">#include "queue.h"</span>00010 00011 <span class="preprocessor">#ifdef USE_WINDOWS_STYLE_SOCKETS</span>00012 <span class="preprocessor"></span><span class="preprocessor"># if defined(_WINSOCKAPI_) && !defined(_WINSOCK2API_)</span>00013 <span class="preprocessor"></span><span class="preprocessor"># error Winsock 1 is not supported by this library. Please include this file or winsock2.h before windows.h.</span>00014 <span class="preprocessor"></span><span class="preprocessor"># endif</span>00015 <span class="preprocessor"></span><span class="preprocessor">#include <winsock2.h></span>00016 <span class="preprocessor">#include "winpipes.h"</span>00017 <span class="preprocessor">#else</span>00018 <span class="preprocessor"></span><span class="preprocessor">#include <sys/time.h></span>00019 <span class="preprocessor">#include <sys/types.h></span>00020 <span class="preprocessor">#include <sys/socket.h></span>00021 <span class="preprocessor">#include <unistd.h></span>00022 <span class="preprocessor">#endif</span>00023 <span class="preprocessor"></span>00024 NAMESPACE_BEGIN(CryptoPP)00025 00026 #ifdef USE_WINDOWS_STYLE_SOCKETS00027 typedef ::SOCKET socket_t;00028 <span class="preprocessor">#else</span>00029 <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">int</span> socket_t;00030 <span class="keyword">const</span> socket_t INVALID_SOCKET = -1;00031 <span class="comment">// cygwin 1.1.4 doesn't have SHUT_RD</span>00032 <span class="keyword">const</span> <span class="keywordtype">int</span> SD_RECEIVE = 0;00033 <span class="keyword">const</span> <span class="keywordtype">int</span> SD_SEND = 1;00034 <span class="keyword">const</span> <span class="keywordtype">int</span> SD_BOTH = 2;00035 <span class="keyword">const</span> <span class="keywordtype">int</span> SOCKET_ERROR = -1;00036 <span class="preprocessor">#endif</span>00037 <span class="preprocessor"></span>00038 <span class="preprocessor">#ifndef socklen_t</span>00039 <span class="preprocessor"></span><span class="keyword">typedef</span> TYPE_OF_SOCKLEN_T socklen_t; <span class="comment">// see config.h</span>00040 <span class="preprocessor">#endif</span>00041 <span class="preprocessor"></span><span class="comment"></span>00042 <span class="comment">//! wrapper for Windows or Berkeley Sockets</span><a name="l00043"></a><a class="code" href="class_socket.html">00043</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="class_socket.html">Socket</a>00044 {00045 <span class="keyword">public</span>:<span class="comment"></span>00046 <span class="comment"> //! exception thrown by Socket class</span><a name="l00047"></a><a class="code" href="class_socket_1_1_err.html">00047</a> <span class="comment"></span> <span class="keyword">class </span><a class="code" href="class_socket_1_1_err.html">Err</a> : <span class="keyword">public</span> <a class="code" href="class_o_s___error.html">OS_Error</a>00048 {00049 <span class="keyword">public</span>:00050 <a class="code" href="class_socket_1_1_err.html">Err</a>(socket_t s, <span class="keyword">const</span> std::string& operation, <span class="keywordtype">int</span> error);00051 socket_t GetSocket()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_s;}00052 00053 <span class="keyword">private</span>:00054 socket_t m_s;00055 };00056 00057 <a class="code" href="class_socket.html">Socket</a>(socket_t s = INVALID_SOCKET, <span class="keywordtype">bool</span> own=<span class="keyword">false</span>) : m_s(s), m_own(own) {}00058 <a class="code" href="class_socket.html">Socket</a>(<span class="keyword">const</span> <a class="code" href="class_socket.html">Socket</a> &s) : m_s(s.m_s), m_own(false) {}00059 <span class="keyword">virtual</span> ~<a class="code" href="class_socket.html">Socket</a>();00060 00061 <span class="keywordtype">bool</span> GetOwnership()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_own;}00062 <span class="keywordtype">void</span> SetOwnership(<span class="keywordtype">bool</span> own) {m_own = own;}00063 00064 operator socket_t() {<span class="keywordflow">return</span> m_s;}00065 socket_t GetSocket()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m_s;}00066 <span class="keywordtype">void</span> AttachSocket(socket_t s, <span class="keywordtype">bool</span> own=<span class="keyword">false</span>);00067 socket_t DetachSocket();00068 <span class="keywordtype">void</span> CloseSocket();00069 00070 <span class="keywordtype">void</span> Create(<span class="keywordtype">int</span> nType = SOCK_STREAM);00071 <span class="keywordtype">void</span> Bind(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port, <span class="keyword">const</span> <span class="keywordtype">char</span> *addr=NULL);00072 <span class="keywordtype">void</span> Bind(<span class="keyword">const</span> sockaddr* psa, socklen_t saLen);00073 <span class="keywordtype">void</span> Listen(<span class="keywordtype">int</span> backlog=5);00074 <span class="comment">// the next three functions return false if the socket is in nonblocking mode</span>00075 <span class="comment">// and the operation cannot be completed immediately</span>00076 <span class="keywordtype">bool</span> Connect(<span class="keyword">const</span> <span class="keywordtype">char</span> *addr, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port);00077 <span class="keywordtype">bool</span> Connect(<span class="keyword">const</span> sockaddr* psa, socklen_t saLen);00078 <span class="keywordtype">bool</span> Accept(<a class="code" href="class_socket.html">Socket</a>& s, sockaddr *psa=NULL, socklen_t *psaLen=NULL);00079 <span class="keywordtype">void</span> GetSockName(sockaddr *psa, socklen_t *psaLen);00080 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Send(<span class="keyword">const</span> byte* buf, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bufLen, <span class="keywordtype">int</span> flags=0);00081 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Receive(byte* buf, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bufLen, <span class="keywordtype">int</span> flags=0);00082 <span class="keywordtype">void</span> ShutDown(<span class="keywordtype">int</span> how = SD_SEND);00083 00084 <span class="keywordtype">void</span> IOCtl(<span class="keywordtype">long</span> cmd, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> *argp);00085 <span class="keywordtype">bool</span> SendReady(<span class="keyword">const</span> timeval *timeout);00086 <span class="keywordtype">bool</span> ReceiveReady(<span class="keyword">const</span> timeval *timeout);00087 00088 <span class="keyword">virtual</span> <span class="keywordtype">void</span> HandleError(<span class="keyword">const</span> <span class="keywordtype">char</span> *operation) <span class="keyword">const</span>;00089 <span class="keywordtype">void</span> CheckAndHandleError_int(<span class="keyword">const</span> <span class="keywordtype">char</span> *operation, <span class="keywordtype">int</span> result)<span class="keyword"> const</span>00090 <span class="keyword"> </span>{<span class="keywordflow">if</span> (result == SOCKET_ERROR) HandleError(operation);}00091 <span class="keywordtype">void</span> CheckAndHandleError(<span class="keyword">const</span> <span class="keywordtype">char</span> *operation, socket_t result)<span class="keyword"> const</span>00092 <span class="keyword"> </span>{<span class="keywordflow">if</span> (result == SOCKET_ERROR) HandleError(operation);}00093 <span class="preprocessor">#ifdef USE_WINDOWS_STYLE_SOCKETS</span>00094 <span class="preprocessor"></span> <span class="keywordtype">void</span> CheckAndHandleError(<span class="keyword">const</span> <span class="keywordtype">char</span> *operation, BOOL result)<span class="keyword"> const</span>00095 <span class="keyword"> </span>{assert(result==TRUE || result==FALSE); <span class="keywordflow">if</span> (!result) HandleError(operation);}00096 <span class="preprocessor">#endif</span>00097 <span class="preprocessor"></span><span class="comment"></span>00098 <span class="comment"> //! look up the port number given its name, returns 0 if not found</span>00099 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_socket.html#_socket_sourcee0">PortNameToNumber</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, <span class="keyword">const</span> <span class="keywordtype">char</span> *protocol=<span class="stringliteral">"tcp"</span>);<span class="comment"></span>00100 <span class="comment"> //! start Windows Sockets 2</span>00101 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="class_socket.html#_socket_sourcee1">StartSockets</a>();<span class="comment"></span>00102 <span class="comment"> //! calls WSACleanup for Windows Sockets</span>00103 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="class_socket.html#_socket_sourcee2">ShutdownSockets</a>();<span class="comment"></span>00104 <span class="comment"> //! returns errno or WSAGetLastError</span>00105 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="class_socket.html#_socket_sourcee3">GetLastError</a>();<span class="comment"></span>00106 <span class="comment"> //! sets errno or calls WSASetLastError</span>00107 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="class_socket.html#_socket_sourcee4">SetLastError</a>(<span class="keywordtype">int</span> errorCode);00108 00109 <span class="keyword">protected</span>:⌨️ 快捷键说明
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