http post data to a website help

This is a discussion on http post data to a website help within the C++ Programming forums, part of the General Programming Boards category; i am making a virus submitter tool that automatically checks files online here is the code, the problem is i ...

  1. #1
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    Nov 2002

    http post data to a website help

    i am making a virus submitter tool that automatically checks files online
    here is the code, the problem is i am saying to keep the connection alive but after sending the identificador GET packet
    recv is coming back with 0 and connection close ,
    here is the actual packets live with a firefox addon called live htttp headers
    C++ pastebin - collaborative debugging tool, if someone could assist me on my project that would be great

    #include "stdafx.h"
    #include <windows.h>
    #include <stdio.h>
    #pragma comment(lib , "WS2_32.lib")
    int _tmain(int argc, _TCHAR* argv[])
            //Inialize winsock to version 2.0
           WSADATA WSAdata;
            WSAStartup(MAKEWORD(2, 2), &WSAdata);
            //Resolve the website to get the ip
           unsigned long IP = inet_addr("");
            if (IP==INADDR_NONE) {
                   hostent *pHE = gethostbyname("");
                    if (pHE == 0)
                            return INADDR_NONE;
                    IP = *((unsigned long *)pHE->h_addr_list[0]);
            //Assign type ,port, ip
            sockaddr_in sins;
            sins.sin_family = AF_INET;
        sins.sin_port = htons(80);
            sins.sin_addr.s_addr = IP;
            SOCKET sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
            //Connect to the resolved ip
            if(connect(sock, (sockaddr *)&sins, sizeof(SOCKADDR_IN))!= SOCKET_ERROR)
            char Buffer[50000];
        sprintf(Buffer,"GET / HTTP/1.1\r\n"
                                       "Keep-Alive: 300\r\n"
                                       "Connection: keep-alive\r\n\r\n");
            int Recvamount = 0;
            Recvamount = recv(sock,Buffer,sizeof(Buffer),0);
            //Build the identificador GET packet
            sprintf(Buffer,"GET /vt/en/identificador HTTP/1.1\r\n"
                                       "Keep-Alive: 300\r\n"
                                       "Connection: keep-alive\r\n\r\n");
            //Send the identificador packet to website
            //Recv the data that came back from the site
           Recvamount = recv(sock,Buffer,sizeof(Buffer),0);
    return 0;
    Last edited by Anddos; 08-24-2009 at 04:11 AM.

  2. #2
    EOP is offline
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  3. #3
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    I don't get the problem... you get the replies of the two requests just fine. True, it's not exactly proper HTTP, but in this case it happens to work.

  4. #4
    Dae is offline
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    Oct 2004
    I think he's posting because the header response he receives with his program doesn't match his browser (FireFox) shown by the plugin LiveHttpHeaders. He's right, I get the right headers here. Are you using a proxy? (looks like it - "Via" header, "X-Cache", "squid")

    Proxies tend to send back closed connections to the client, even though they will keep the connection open with whatever you request. Some proxies simply won't work with uploading. If you're using proxies, that's something you should have mentioned.
    Warning: Have doubt in anything I post.

    GCC 4.5, Boost 1.40, Code::Blocks 8.02, Ubuntu 9.10 010001000110000101100101

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