3.2.54 getpeername

getpeername 

SOCKET

This function returns the packed socket address of other end of the SOCKET connection. For example:

use Socket;
$hersockaddr = getpeername SOCK;
($port, $heraddr) = unpack_sockaddr_in($hersockaddr);
$herhostname = gethostbyaddr($heraddr, AF_INET);
$herstraddr = inet_ntoa($heraddr);