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From: HIToC <hitoc_mail@yahoo.it>
To: linux-c-programming@vger.kernel.org
Subject: Remote host name
Date: Wed, 15 Dec 2004 16:45:40 +0100	[thread overview]
Message-ID: <200412151636.28714.hitoc_mail@yahoo.it> (raw)

Hi all.
I am writing a function that returns the name of the remote host which we are
connected to. About the remote host I only know its IP address...I have tried
to use function "gethostbyname" passing for argument the IP address in
standard dot notation:

[man 3 gethostbyname: The gethostbyname() function returns a structure of 
type hostent for the given host name. Here name is either a host name, or
an IPv4 address in standard dot notation, or an IPv6 address in colon
(and possibly dot) notation.]


struct sockaddr_in destination;

char* get_remote_host_name()
{
  hostent* remote_host_information;
  char* host_IP;

  host_IP =  inet_ntoa(destination.sin_addr);
  remote_host_information = gethostbyname(host_IP);

  return remote_host_information->h_name;
}


This function returns the IP address of the remote host, not its (DNS) name!
Can anybody help me?
-- 

With regards,
				HIToC 
				hitoc_mail@yahoo.it


             reply	other threads:[~2004-12-15 15:45 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-15 15:45 HIToC [this message]
2004-12-15 16:02 ` Remote host name Ron Michael Khu
2004-12-15 17:41   ` Ron Michael Khu
     [not found] <31E38B53D182D51195FA00508BE3A33405200607@zwnbc004.cala.nortel.com>
2004-12-16 15:03 ` HIToC

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