NAME Sys::Hostname::FQDN - Get the short or long hostname SYNOPSIS use Sys::Hostname::FQDN qw( asciihostinfo gethostinfo inet_ntoa inet_aton fqdn short ); $host = short(); $fqdn = fqdn(); ($name,$aliases,$addrtype,$length,@addrs)=gethostinfo(); ($name,$aliases,$addrtype,$length,@addrs)=asciihostinfo(); $dotquad = inet_ntoa($netaddr); $netaddr = inet_aton($dotquad); INSTALLATION To install this module type the following: perl Makefile.PL make make test make install Solaris users, see the 'hints' subdirectory if you have problems with the build. DESCRIPTION Sys::Hostname::FQDN uses the host 'C' library to discover the (usually) short host name, then uses (perl) gethostbyname to extract the real hostname. The results from gethostbyname are exported as gethostinfo and asciihostinfo as a convenience since they are available. Similarly, the 'C' library functions inet_ntoa and inet_aton are exported. $host = short(); returns the host part of this host's FQDN. $fqdn = fqdn(); returns the fully qualified host name of this host. ($name,$aliases,$addrtype,$length,@addrs)=gethostinfo(); returns: $name fully qualifed host name of this host. $aliases alternate names for this host. $addrtype The type of address; always AF_INET at present. $length The length of the address in bytes. @addrs array of network addresses for this host in network byte order. ($name,$aliases,$addrtype,$length,@addrs)=asciihostinfo(); returns: $name fully qualifed host name of this host. $aliases alternate names for this host. $addrtype The type of address; always AF_INET at present. $length The length of the address in bytes. @addrs array of dot quad IP addresses for this host. $dotquad = inet_ntoa($netaddr); input: packed network address in network byte order. returns: dot quad IP address. $netaddr = inet_aton($dotquad); input: dot quad IP address. returns: packed network address in network byte order. DEPENDENCIES none EXPORT None by default EXPORT_OK asciihostinfo gethostinfo inet_ntoa inet_aton fqdn short AUTHOR Michael Robinton COPYRIGHT AND LICENCE Copyright 2003, Michael Robinton This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.