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Reply-To: <litterio AT pyxsys DOT net>
From: "Francis Litterio" <litterio AT pyxsys DOT net>
To: "'C. Porter Bassett'" <cporter AT byu DOT edu>, <cygwin AT cygwin DOT com>
Subject: RE: IP Lookup command
Date: Thu, 31 May 2001 13:52:05 -0400
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In-Reply-To: <001c01c0e9f5$dc233c90$0a00a8c0@PWORK>

Try this quick hack.  It works for me under Cygwin 1.3.1:

#include <stdio.h>
#include <netdb.h>

int main(int argc, char * argv[])
{
    char ** addrlistelem;
    struct hostent * hostinfo;

    hostinfo = gethostbyname(argv[1]);

    if (hostinfo == NULL)
    {
	fputs("unknown host\n", stderr);
	exit(1);
    }

    addrlistelem = hostinfo->h_addr_list;
    while (*addrlistelem)
    {
	char * address = *addrlistelem;
	printf("%u.%u.%u.%u\n", address[0] & 0xff, address[1] & 0xff,
	       address[2] & 0xff, address[3] & 0xff);
	addrlistelem++;
    }

    exit(0);
}

-----Original Message-----
From: cygwin-owner AT sources DOT redhat DOT com
[mailto:cygwin-owner AT sources DOT redhat DOT com]On Behalf Of C. Porter Bassett
Sent: Thursday, May 31, 2001 1:20 PM
To: cygwin AT cygwin DOT com
Subject: IP Lookup command


I need a command that I can call in the following manner:
$ unknown_command host_on_my_network
192.168.20.119
$

At least here on my network, neither nslookup nor host work, although
they
will go outside of my network and work just fine.  Ping manages to find
local computers in the way that I am looking for.  Should I just pass
ping
though some filter?


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