MFC http post传送文件报头

Question

我最近使用mfc的http协议向服务端发送文件，使用post请求方法，但是报头一直不正确，用抓包抓出来看也没看出来个所以然，头疼啊，对于传送文件头部哪些信息是必须的，最好有个例子啊？

Answer 1

   if( post == NULL )
{
        SendString(sock,"GET ");
strcpy(headerSend, "GET ");
}
    else 
{
SendString(sock,"POST ");
strcpy(headerSend, "POST ");
}
    SendString(sock,request);    SendString(sock," HTTP/1.0\r\n");    SendString(sock,"Accept: image/gif, image/x-xbitmap,"
        " image/jpeg, image/pjpeg, application/vnd.ms-excel,"
        " application/msword, application/vnd.ms-powerpoint,"
        " */*\r\n");    SendString(sock,"Accept-Language: en-us\r\n");    SendString(sock,"Accept-Encoding: gzip, deflate\r\n");    SendString(sock,"User-Agent: Mozilla/4.0\r\n");    if(postLength)
    {
        wsprintf(buffer,"Content-Length: %ld\r\n",postLength);
        SendString(sock,buffer);
    }

    SendString(sock,"Host: ");    SendString(sock,host);    SendString(sock,"\r\n");