windows下面的網路編程

標籤：網路   c語言   

用戶端的程式

#include "stdafx.h"#include <WINSOCK2.H>#include <stdio.h>#pragma  comment(lib,"ws2_32.lib")int main(int argc, char* argv[]){    WORD sockVersion = MAKEWORD(2,2);    WSADATA data;     if(WSAStartup(sockVersion, &data) != 0)    {        return 0;    }    SOCKET sclient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);    if(sclient == INVALID_SOCKET)    {        printf("invalid socket !");        return 0;    }    sockaddr_in serAddr;    serAddr.sin_family = AF_INET;    serAddr.sin_port = htons(8888);    serAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");     if (connect(sclient, (sockaddr *)&serAddr, sizeof(serAddr)) == SOCKET_ERROR)    {        printf("connect error !");        closesocket(sclient);        return 0;    }    char * sendData = "你好，TCP服務端，我是用戶端!\n";    send(sclient, sendData, strlen(sendData), 0);    char recData[255];    int ret = recv(sclient, recData, 255, 0);    if(ret > 0)    {        recData[ret] = 0x00;        printf(recData);    }    closesocket(sclient);    WSACleanup();    return 0;}

伺服器端的程式：

<pre name="code" class="objc">#include "stdafx.h"#include <stdio.h>#include <winsock2.h>#pragma comment(lib,"ws2_32.lib")int main(int argc, char* argv[]){    //初始化WSA    WORD sockVersion = MAKEWORD(2,2);    WSADATA wsaData;    if(WSAStartup(sockVersion, &wsaData)!=0)    {        return 0;    }    //建立通訊端    SOCKET slisten = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);    if(slisten == INVALID_SOCKET)    {        printf("socket error !");        return 0;    }    //綁定IP和連接埠    sockaddr_in sin;    sin.sin_family = AF_INET;    sin.sin_port = htons(8888);    sin.sin_addr.S_un.S_addr = INADDR_ANY;     if(bind(slisten, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)    {        printf("bind error !");    }    //開始監聽    if(listen(slisten, 5) == SOCKET_ERROR)    {        printf("listen error !");        return 0;    }    //迴圈接收資料    SOCKET sClient;    sockaddr_in remoteAddr;    int nAddrlen = sizeof(remoteAddr);    char revData[255];     while (true)    {        printf("等待串連...\n");        sClient = accept(slisten, (SOCKADDR *)&remoteAddr, &nAddrlen);        if(sClient == INVALID_SOCKET)        {            printf("accept error !");            continue;        }        printf("接受到一個串連：%s \r\n", inet_ntoa(remoteAddr.sin_addr));                //接收資料        int ret = recv(sClient, revData, 255, 0);                if(ret > 0)        {            revData[ret] = 0x00;            printf(revData);        }        //發送資料        char * sendData = "你好，TCP用戶端！\n";        send(sClient, sendData, strlen(sendData), 0);        closesocket(sClient);    }        closesocket(slisten);    WSACleanup();    return 0;}

windows下面的網路編程