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Small web client

Posted on 2000-05-07
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Last Modified: 2010-04-02
Hello,
I need to build as small as possible client that will connect to some URL and will parse short response from it.
What will be the best way to do it?
(I don't want to use MFC).

Thanks for any suggestion,
arnon@zzn.com
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Question by:arnonayal
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Accepted Solution

by:
arikka earned 450 total points
ID: 2785881
// This is simple WEB client without MFC
// It uses WinSock ( add wsock32.lib in project settings)


#include <windows.h>
#include <winsock.h>
#include <stdio.h>

void TRACE(char *str)
{
   FILE *fp=fopen("browser.log","a+");
   fprintf(fp,"%s\n",str);
   fclose(fp);
}

/////////////////////////////////////////////////////////////

WNDCLASS wndCls;
HWND hWnd;
MSG msg;

long _stdcall wndProc (HWND,UINT,WPARAM,LPARAM);

int _stdcall WinMain(HINSTANCE inst,HINSTANCE j,char *cmdLine,int l)
{
        wndCls.lpszClassName ="something";
        wndCls.hInstance = inst;
        wndCls.lpfnWndProc = wndProc;

        wndCls.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);

        RegisterClass(&wndCls);
        hWnd = CreateWindow("something","WEB Client",
                                 WS_OVERLAPPEDWINDOW,
                                           CW_USEDEFAULT,
                             CW_USEDEFAULT,
                             CW_USEDEFAULT,
                             CW_USEDEFAULT,
                             NULL,
                             NULL,
                             inst,
                             NULL);

        ShowWindow(hWnd,3);
      UpdateWindow(hWnd);


        while (GetMessage(&msg,0,0,0) )
               DispatchMessage(&msg);

        return 1;
}
/////////////////////////////////////////////////////////////

WSADATA wsdata;
SOCKET s;
sockaddr_in sa;
struct hostent *host;

int d;

char buf   [200];
char buf_2 [1000];

long _stdcall wndProc (HWND hwind,UINT message, WPARAM wParam,LPARAM lParam)
{

        if ( message == WM_LBUTTONDOWN)
        {

          d = WSAStartup(0x0101,&wsdata);
          s = socket(AF_INET,SOCK_STREAM,0);
          sa.sin_family = AF_INET;
          sa.sin_port = htons(80);

        host = gethostbyname("WEB SERVER NAME HERE");
        sa.sin_addr.s_addr=*((unsigned long *) host->h_addr);

          d = connect(s,(struct sockaddr *)&sa,sizeof(sa));
// here insert your URL
          strcpy(buf,"GET aaa/bbb/ccc/html.htm \r\n");
          d = send(s, buf, strlen(buf),0);
          d = 1;
          while(d !=0)
        {
                strset(buf_2,' ');
                d = recv(s,buf_2, sizeof(buf_2),0);
                TRACE(buf_2);
        }
          MessageBox(0,"All","Over",0);

        }

        if ( message == WM_DESTROY)
            PostQuitMessage(0);

        return DefWindowProc(hwind, message, wParam,lParam);
}

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