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How to handle unplugging ethernet cable in socket programming

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Old 02-15-2010
How to handle unplugging ethernet cable in socket programming
Hi, I am trying to implement a server-client socket communication. My server and clients are in different PCs. During communications if the ethernet cable is removed from the server side it shows broken pipe due to unable to write on the socket. I want to know how to check whether the ethernet cable is plugged or not before trying to write on socket. Is there any API to check ethernet connectivity that can be used in socket programming?? How can I check a socket is alive or not ??
Last edited by JagadishB; 02-19-2010 at 01:19 AM..
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LEARN ABOUT SUSE

rarpd

RARPD(8)						      System Manager's Manual							  RARPD(8)

NAME

       rarpd - reverse address resolution protocol daemon

SYNOPSIS

       rarpd [-v] [-i interface ]

DESCRIPTION

       Rarpd listens on the ethernet for broadcast packets asking for reverse address resolution.  These packets are sent by hosts at boot time to
       find out their IP address.  Rarpd looks up the six octet ethernet number in the ethers map finding a host name.	This name is translated to
       the IP address of the host by a DNS lookup.  The IP address is then sent to the host.

       Before rarpd can start its service it first finds out what the IP address and hardware address of the ethernet is.

       Warning!  Sun diskless workstations assume that the first RARP server that answers is the host they are to boot from.  For this to work all
       other Sun RARP servers delay their answer if they are not also the requestors boot server.  This rarpd does not have this kludge so it will
       happily	engage	the Sun boot server to see who can answer the client first.  Unless your host can actually serve a Sun diskless client, it
       is better not to list any more hosts in the ethers file than necessary.

OPTIONS

       -v     Be verbose. Show requests which the daemon is responding to.

       -i     Bind to the named interface. By default rarpd binds to the default interface for the local system type, if available.

SEE ALSO

       ifconfig(8), ethers(5), hosts(5),

AUTHOR

       Derrick J. Brashear (shadow@dementia.org)

       The man page is mostly from the Minix version, by Kees J. Bot (kjb@cs.vu.nl)

																	  RARPD(8)