下面用Socket实现一个windows下的c语言socket通信例子，这里我们客户端传递一个字符串，服务器端进行接收。
【服务器端】
#include "stdafx.h"
#include <stdio.h>
#include <winsock2.h>
#include <winsock2.h>
#define SERVER_PORT 5208 //侦听端口
void main()
你上面给出的代码其实就是 MSDN 里面的演示代码，不过不完整，只演示了两个函数的使用，我给你看看我写的 TCP 通讯程序，可以在同一个局域网内的两台不同计算机之间聊天 ：
这其实就是某本将网络通讯的教程里面的例子，不过是我自己重写了一遍，下面给你代码：
========================
下面是公共代码：
========================
#ifndef __CINITSOCK__H__
#define __CINITSOCK__H__
#include <winsock2.h>
#include <iphlpapi.h>
#pragma comment( lib, "ws2_32.lib" )
#pragma comment( lib, "iphlpapi.lib" )
class CInitSock
{
public:
CInitSock( int nMinorVer = 2, int nMajorVer = 2 )
{
WSADATA wsData
WORD wVer = MAKEWORD( nMinorVer, nMajorVer )
if( 0 != WSAStartup( wVer, &wsData ) ) exit( 0 )
}
~CInitSock( )
{
WSACleanup( )
}
}
#endif
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下面是客户端的代码 ：
=======================
#include "CInitSock.h"
#include <iostream>
using namespace std
CInitSock g_Sock
void main( )
{
SOCKET sockClient = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP )
if( INVALID_SOCKET == sockClient )
return
sockaddr_in sockAddr
sockAddr.sin_family = AF_INET
sockAddr.sin_port = htons( 4567 )
sockAddr.sin_addr.S_un.S_addr = inet_addr( "127.0.0.1" )
if( -1 == connect( sockClient, ( sockaddr* )&sockAddr, sizeof( sockAddr ) ) )
{
cout << "connect failed" << endl
return
}
while( true )
{
char szBuf[ MAX_PATH ]
ZeroMemory( szBuf, sizeof( szBuf ) )
cout << "You Say : "
cin >> szBuf
if( SOCKET_ERROR == send( sockClient, szBuf, MAX_PATH, 0 ) )
{
cout << "send failed" << endl
return
}
int nRecvLen = recv( sockClient, szBuf, MAX_PATH, 0 )
if( nRecvLen > 0 )
{
// szBuf[ nRecvLen ] = '\0'
cout << "Service Say : " << szBuf << endl << endl
}
else
{
cout << "recv failed" << endl
return
}
}
closesocket( sockClient )
}
======================
下面是服务端的代码：
======================
#include "CInitSock.h"
#include <iostream>
using namespace std
CInitSock g_Sock
void main( )
{
SOCKET sockClient = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP )
if( INVALID_SOCKET == sockClient )
return
sockaddr_in sockAddr
sockAddr.sin_family = AF_INET
sockAddr.sin_port = htons( 4567 )
sockAddr.sin_addr.S_un.S_addr = INADDR_ANY
bind( sockClient, ( sockaddr* )&sockAddr, sizeof( sockAddr ) )
listen( sockClient, SOMAXCONN )
char szBuf[ MAX_PATH ]
sockaddr_in remoteAddr
int nLen = sizeof( sockaddr_in )
SOCKET sock = accept( sockClient, ( sockaddr* )&remoteAddr, &nLen )
while( true )
{
int nRecvLen = recv( sock, szBuf, MAX_PATH, 0 )
if( nRecvLen > 0 )
{
cout << "Client Say : " << szBuf << endl << endl
}
ZeroMemory( szBuf, sizeof( szBuf ) )
cout << "You Say : "
cin >> szBuf
if( SOCKET_ERROR == send( sock, szBuf, MAX_PATH, 0 ) )
{
cout << "send failed" << endl
}
}
closesocket( sock )
closesocket( sockClient )
}
希望能够帮到楼主 。
