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Article #255gethostbyaddr()
From: Alan Ghafour
Date: Thu, 15 May 1997 09:01
Date: Thu, 15 May 1997 09:01
31 lines
1495 bytes
1495 bytes
Probuje zrobic gethostbyaddr() i za ... mi nie wychodzi :-(
Moze ktos przesledzi ponizszy kawalek i powie gdzie jest blad ?
#! /usr/bin/perl
$host="pingwin.ds2.pg.gda.pl";
$addr="153.19.170.112";
#############################################
# Resolving na podstawie nazwy dziala poprawnie !
($a,$b,$c,$d)=unpack("C4",gethostbyname($host));
$IP=join(".",$a,$b,$c,$d);
print $host,"\n", $IP, "\n";
#############################################
# A na podstawie adresu nie :-(
# Ani tak ...
$name=gethostbyaddr($addr,AF_INET);
print $name, "\n";
# Ani tak
$addr=pack("C4",$a,$b,$c,$d);
$name=gethostbyaddr($addr,AF_INET);
print $name,"\n";
__ __ __ _ _ _ ___ _ _ ___ ___ ______ Alan Ghafour
(_ |_)|_) | |\ | | __ |\ | |_ | [/~~~~\] Network Administrator
__) | | \ | | \| | | \| |__ | |_()_| alan@gdansk.sprint.pl
http://www.sprint.pl/~alan
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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!pingwin.icm.edu.pl!news.icm.edu.pl!uw.edu.pl!news.nask.pl!netra.gdansk.sprint.pl!alan From: Alan Ghafour <alan@gdansk.sprint.pl> Newsgroups: pl.comp.lang.perl Subject: gethostbyaddr() Date: Thu, 15 May 1997 11:01:22 +0200 Organization: Public NewsServer at NASK N.O.C. Lines: 32 Message-ID: <Pine.GSO.3.96.970515105108.18403A-100000@netra.gdansk.sprint.pl> NNTP-Posting-Host: red.gdansk.sprint.pl Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit