/*-------------------------------------------------------------------------
|   RXTX License v 2.1 - LGPL v 2.1 + Linking Over Controlled Interface.
|   RXTX is a native interface to serial ports in java.
|   Copyright 2002-2007 by Trent Jarvi tjarvi@qbang.org and others who
|   actually wrote it.  See individual source files for more information.
|
|   A copy of the LGPL v 2.1 may be found at
|   http://www.gnu.org/licenses/lgpl.txt on March 4th 2007.  A copy is
|   here for your convenience.
|
|   This library is free software; you can redistribute it and/or
|   modify it under the terms of the GNU Lesser General Public
|   License as published by the Free Software Foundation; either
|   version 2.1 of the License, or (at your option) any later version.
|
|   This library 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
|   Lesser General Public License for more details.
|
|   An executable that contains no derivative of any portion of RXTX, but
|   is designed to work with RXTX by being dynamically linked with it,
|   is considered a "work that uses the Library" subject to the terms and
|   conditions of the GNU Lesser General Public License.
|
|   The following has been added to the RXTX License to remove
|   any confusion about linking to RXTX.   We want to allow in part what
|   section 5, paragraph 2 of the LGPL does not permit in the special
|   case of linking over a controlled interface.  The intent is to add a
|   Java Specification Request or standards body defined interface in the 
|   future as another exception but one is not currently available.
|
|   http://www.fsf.org/licenses/gpl-faq.html#LinkingOverControlledInterface
|
|   As a special exception, the copyright holders of RXTX give you
|   permission to link RXTX with independent modules that communicate with
|   RXTX solely through the Sun Microsytems CommAPI interface version 2,
|   regardless of the license terms of these independent modules, and to copy
|   and distribute the resulting combined work under terms of your choice,
|   provided that every copy of the combined work is accompanied by a complete
|   copy of the source code of RXTX (the version of RXTX used to produce the
|   combined work), being distributed under the terms of the GNU Lesser General
|   Public License plus this exception.  An independent module is a
|   module which is not derived from or based on RXTX.
|
|   Note that people who make modified versions of RXTX are not obligated
|   to grant this special exception for their modified versions; it is
|   their choice whether to do so.  The GNU Lesser General Public License
|   gives permission to release a modified version without this exception; this
|   exception also makes it possible to release a modified version which
|   carries forward this exception.
|
|   You should have received a copy of the GNU Lesser General Public
|   License along with this library; if not, write to the Free
|   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
|   All trademarks belong to their respective owners.
--------------------------------------------------------------------------*/
1. BUILDING LFD

  In the src/lfd directory edit lockdaemon.c and specify the following defines:

#define LOCK fhs_lock
#define UNLOCK fhs_unlock
#define LOCKDIR "/var/lock"

   LOCK may be fhs_lock (linux) or uucp_lock (Solaris)
   UNLOCK may be fhs_unlock (Linux) or fhs_unlock (Solaris)
   LOCkDIR may be /var/lock (Linux) or /var/spool/lock (Solaris)

   After setting up the defines type make to build lfd.

2. INSTALLING.

   daemons are usually placed in the /usr/sbin directory.
   in.lfd will need to be setup for inetd or xinetd support.

2.1 xinetd support on RedHat Linux:

   edit /etc/services and add the following lines:

lockfiled	50001/tcp			# lock file daemon
lockfiled	50001/ucp			# lock file daemon


   create a file /etc/xinetd.d/lfd with the folowing contents:

# default: on
# description: The lockfiled server serves lockfiles; it uses \
#	
service lfd
{
	flags		= REUSE
	socket_type	= stream        
	wait		= no
	user		= uucp
	server		= /usr/sbin/in.lfd
	log_on_failure	+= USERID
	disable		= no
}

2.2 inetd support on Solaris:

   edit /etc/services and add the following lines:

lfd       50001/tcp                       # lock file daemon
lfd       50001/ucp                       # lock file daemon

   add the following line to /etc/inetd.conf

lockfiled   stream tcp nowait  uucp  /usr/sbin/in.lfd lfd


