LYNX-DEV Re: _WINDOWS patch for doing NSL_FORK

[afn06760]

>     * From: address@hidden
>     * Date: Fri, 13 Mar 1998 03:44:38 GMT

The following is a test program compiled with MINGW32 gcc2.8 to
demonstrate a simple, but effective, use of subthreads to implement
NSL_FORK for _WINDOWS in HTTCP.c.  Note that the text at the bottom
of this note is copied from a Dos window while running Windows 95 and
after connecting to an internet server.  Note also how the selective
use of global variables simplifies the code.

======================================================================
socktest.c:
======================================================================

#define Win32_Winsock /* Needed for cygwin/mingw32 gcc */
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

struct hostent FAR *phost;
const char FAR *host = "www.mit.edu";

void _fork_func (void *arglist)
{
        phost = gethostbyname(host);
}

int main (int argc, char **argv)
{
 HANDLE hThread;
 WSADATA buffer;
 WORD wVerReq;

        wVerReq = MAKEWORD(1,1);

        if (WSAStartup(wVerReq, &buffer))
         {printf("Unable to start wsock32.dll\n"); return 1; };
        hThread = _beginthread((void (*)())_fork_func,
        4096*2,
        (void *)NULL);
        while (!phost)
         if (kbhit())
          {CloseHandle(hThread); printf("Thread stopped. host: %s\n",host); 
return 0; };
        printf("Host found: %s %X\n", host, phost);
        return WSACleanup();
}

 

========================================================
E:\src\bcsock>gcc -O -o socktest socktest.c -lwsock32
socktest.c: In function `main':
socktest.c:27: warning: assignment makes pointer from integer without a cast

E:\src\bcsock>socktest
Host found: www.mit.edu 410C2C

E:\src\bcsock>

=========================================================