利用C语言实现POST数据包如此简单【模拟网页提交表单】

左手的ㄟ右手 2022-05-30 11:48 152阅读 0赞

http://blog.csdn.net/sunlion81/article/details/18259943

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//*****************************************//
    //*********利用C实现自动发包***************//
    //*********作者：马   犇******************//
    //*********时间：2011-6-25*****************//
    //*****************************************//
    
    #include "stdafx.h"
    #include "stdio.h"
    #include "stdlib.h"
    #include "winsock2.h"
    #pragma comment(lib,"ws2_32.lib")
    int main(int argc, char* argv[])
    {
    
      SOCKET hsocket;
      SOCKADDR_IN saServer;
      WSADATA     wsadata;
      LPHOSTENT lphostent;
      int     nRet;
      char*   host_name="www.********.com";
      char*   reqHead="POST ********* HTTP/1.1\r\n"   //此为要发送的数据包
            "Accept: */*\r\n"
            "Referer: http://www.*********\r\n"
            "Accept-Language: zh-CN\r\n" 
            "User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; BOIE9;ZHCN; twchrome)\r\n" 
            "Content-Type: application/x-www-form-urlencoded\r\n" 
            "Accept-Encoding: gzip, deflate\r\n"
            "Host: www.*******.com\r\n" 
            "Content-Length: 375\r\n"
            "Connection: Keep-Alive\r\n"
            "Cache-Control: no-cache\r\n"
            "Cookie: ************** \r\n\r\n"
            "user=test&pass=123";
            
     // 初始化套接字 
        if(WSAStartup(MAKEWORD(2,2),&wsadata))
            printf("初始化SOCKET出错！");
        lphostent=gethostbyname(host_name);     
        if(lphostent==NULL)     
            printf("lphostent为空！");  
        hsocket   =   socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);     
        saServer.sin_family = AF_INET;     
        saServer.sin_port = htons(80);     
        saServer.sin_addr = *((LPIN_ADDR)*lphostent->h_addr_list);  
        // 利用SOCKET连接  
        nRet = connect(hsocket,(LPSOCKADDR)&saServer,sizeof(SOCKADDR_IN));     
        if(nRet == SOCKET_ERROR)     
        {
            printf("建立连接时出错！");     
            closesocket(hsocket);
            return 0;
        }
        // 利用SOCKET发送  
    
        nRet = send(hsocket,req,strlen(req),0);  
        if(nRet==SOCKET_ERROR)  
        {  
            printf("发送数据包时出错！");  
            closesocket(hsocket);  
        }  
        char   Dest[3000];     
        nRet=1;     
        while(nRet>0)     
        {  
            // 接收返回数据包  
            nRet=recv(hsocket,(LPSTR)Dest,sizeof(Dest),0);     
            if(nRet>0)
                Dest[nRet]=0;
            else     
                Dest[0]=0;  
            // 显示返回数据包的大小、内容 
            printf("\nReceived   bytes:%d\n",nRet);     
            printf("Result:\n%s",Dest);     
        }
     }
        return 0; 
    }