comment on

I should have been clearer its the choice of ipaddress to return that's the issue. If I return all addresses it get it in a reverse order than a C# program (both are copied below). if I use Khen1950fx's first example I get the answer as 192.168.0.1 which is the wrong address to use. Code that picks the first address to use now breaks down on a multiadapter machines.

Outputs via C# and perl

>listaddrcsharp.exe 10.123.67.139 192.168.0.1

>perl d:\temp\in.pl 192.168.0.1 10.123.67.139

Perl code

use Socket;
use IO::Socket;

my $machineName = lc($ENV{COMPUTERNAME});
my ($name, $aliases, $addrtype, $length, @addrs) = gethostbyname($mach
+ineName);
foreach(@addrs)
{      
   ($a,$b,$c,$d)=unpack ('C4', $_);
   print "$a.$b.$c.$d\n";
}
[download]

C# Code

 public static void Main(string[] args)
        {
            IPAddress[] ips;
            ips = Dns.GetHostAddresses(Environment.MachineName);

            foreach (IPAddress ip in ips)
            {
                if (ip.AddressFamily == AddressFamily.InterNetwork)
                    Console.WriteLine("    {0}", ip);
            }
        }
[download]

In reply to Re^2: gethostbyname returns reverse order of ipaddress expected by anubhavd
in thread gethostbyname returns reverse order of ipaddress expected by anubhavd

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


Perl: the Markov chain saw
	PerlMonks