[platform/upstream/lsof.git] / 00DIST

            Notes for the distribution of lsof version 4

********************************************************************
| The latest release of lsof is always available via anonymous ftp |
| from lsof.itap.purdue.edu.  Look in pub/tools/unix/lsof.         |
********************************************************************

                Contents

            Dialects Supported
            How Lsof Works
            Lsof Output
            Getting Started Quickly
            Limiting, Filtering, and Selecting Lsof Output
            Parsing Lsof Output with Another Program
            Repeat Mode
            Distribution Restrictions
            Cautions
            Distribution Contents
            Warranty
            Bug Reports
            The lsof-l Mailing List
            Version 3 Release Notes
                3.0,  May 24, 1994
                ...
                3.88, February 17, 1997
            What's New in Version 4
            Version 4 Release Notes
                4.0, February 24, 1997
                4.01, March 3, 1997
                4.02, March 21, 1997
                4.03, April 7, 1997
                4.04, April 17, 1997
                4.04 supplement, April 18, 1997
                4.05, April 24, 1997
                4.06, April 30, 1997
                4.07, May 12, 1997
                4.08, May 23, 1997
                4.09, June 1, 1997
                4.10, June 8, 1997
                4.11, June 12, 1997
                4.12, June 24, 1997
                4.13, July 9, 1997
                4.14, July 22, 1997
                4.15, August 15, 1997
                4.16, September 25, 1997
                4.17, October 14, 1997
                4.18, October 25, 1997
                4.19, October 30, 1997
                4.20, November 11, 1997
                4.21, December 1, 1997
                4.22, December 15, 1997
                4.23, January 16, 1998
                4.24, January 28, 1998
                4.25, February 7, 1998
                4.26, February 17, 1998
                4.27, March 6, 1998
                4.28, March 10, 1998
                4.29, March 26, 1998
                4.30, April 9, 1998
                4.31, April 21, 1998
                4.32, May 13, 1998
                4.33, May 22, 1998
                4.34, June 26, 1998
                4.35, July 17, 1998
                4.36, August 4, 1998
                4.37, September 15, 1998
                4.38, November 25, 1998
                4.39, December 29, 1998
                4.40, January 25, 1999
                4.41, February 27, 1999
                4.42, March 30, 1999
                4.43, May 11, 1999
                4.44, June 24, 1999
                4.45, July 30, 1999
                4.46, October 23, 1999
                4.47, November 29, 1999
                4.48, January 14, 2000
                4.49, April 3, 2000
                4.50, June 29, 2000
                4.51, August 21, 2000
                4.52, November 8, 2000
                4.53, December 6, 2000
                4.54, January 19, 2001
                4.55, February 15, 2001
                4.56, May 3, 2001
                4.57, July 19, 2001
                4.58, September 13, 2001
                4.59, October 20, 2001
                4.60, November 9, 2001
                4.61, January 22, 2002
                4.62, March 7, 2002
                4.63, April 23, 2002
                4.64, June 26, 2002
                4.65, October 10, 2002
                4.66, December 22, 2002
                4.67, March 27, 2003
                4.68, June 18, 2003
                4.69, October 16, 2003
                4.70, January 16, 2004
                4.71, March 11, 2004
                4.72, July 13, 2004
                4.73, October 21, 2004
                4.74, January 17, 2005
                4.75, May 16, 2005
                4.76, August 30, 2005
                4.77, April 10, 2006
                4.78, April 24, 2007
                4.79, April 15, 2008
                4.80, May 12, 2008
                4.81, October 21, 2008
                4.82, March 25, 2009
                4.83, January 18, 2010
                4.84, July 29, 2010
                4.85, September 27, 2011
                4.86, April 10, 2012
                4.87, January 2, 2013
                4.88, October 13, 2014
                4.89, July 7, 2015
                4.90, February 14, 2018
                4.91, March 26, 2018


Dialects Supported
==================

Lsof (for LiSt Open Files) lists files opened by processes on
selected Unix systems.  Version 4 is a source reorganization of
version 3, itself a major revision of version 2.  Version 4 has
been tested on:

        Apple Darwin 9 and Mac OS X 10.[567]
        FreeBSD 10.3, 11.0 and 12.0 for AMD64-based systems
        Solaris 9

(The pub/tools/unix/lsof/contrib directory on lsof.itap.purdue.edu
contains information on other ports.)

If your favorite Unix dialect is not in the list, or if your version
of it is more recent than the ones listed, please contact me at
<abe@purdue.edu>.

Version 3 of lsof was tested on:

        AIX 3.2.5, 4.1[.[1234]], and 4.2
        BSDI BSD/OS 2.0, 2.0.1, and 2.1 for x86-based systems
        DC/OSx 1.1 for Pyramid systems
        Digital UNIX (DEC OSF/1) 2.0, 3.0, 3.2, and 4.0
        EP/IX 2.1.1 for the CDC 4680
        FreeBSD 1.1.5.1, 2.0, 2.0.5, 2.1, 2.1.5 for x86-based
                systems
        HP-UX 8.x, 9.x, 10.01, 10.10, and 10.20
        IRIX 5.2, 5.3, 6.0, 6.0.1, and 6.[124]
        Linux through 2.0.27 for x86-based systems
        NetBSD 1.0, 1.1, and 1.2 for x86 and SPARC-based
                systems
        NEXTSTEP 2.1 and 3.[0123]
        OpenBSD 1.2 and 2.0 for x86-based systems
        Reliant UNIX 5.43 for Pyramid systems
        RISC/os 4.52 for MIPS R2000-based systems
        SCO OpenServer Release 1.1, 3.0, and 5.0.x for x86-based 
                systems
        SCO UnixWare 2.1 and 2.1.1 for x86-based systems
        Sequent PTX 2.1.[1569], 4.0.[23], 4.1.[024], 4.2[.1],
                and 4.3
        Solaris 2.[12345], 2.5.1, and 2.6-Beta
        SunOS 4.1.x
        Ultrix 4.2, 4.3, 4.4, and 4.5

Version 3 and its predecessor, version 2, may be found at:

        ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/OLD


How Lsof Works
==============

Using available kernel data access methods -- getproc(), getuser(),
kvm_*(), nlist(), pstat(), read(), readx(), /proc -- lsof reads
process table entries, task table entries, user areas and file
pointers to reach the underlying structures that describe files
opened by processes.

Lsof interprets most file node structures -- advfsnodes, autonodes,
cnodes, cdrnodes, devnodes, fifonodes, gnodes, hsnodes, inodes,
mfsnodes, pcnodes, procnodes, rnodes, snodes, specnodes, s5inodes,
tmpnodes.  It understands NFS connections.  It recognizes FIFOs,
multiplexed files, Unix and Internet sockets.  It knows about
streams.  It understands /proc file systems for some dialects.  On
many dialects it recognizes execution text and library references.
It knows about AFS on some Unix dialects.


Lsof Output
===========

The lsof output describes:

    * the identification number of the process (PID) that has opened
      the file;

    * the process group identification number (PGID) of the process
      (optional);

    * the process identification number of the parent process (PPID)
      (optional);

    * the command the process is executing;

    * the owner of the process;

    * for all files in use by the process, including the executing
      text file and the shared libraries it is using:

      * the file descriptor number of the file, if applicable;

      * the file's access mode;

      * the file's lock status;

      * the file's device numbers;

      * the file's inode number;

      * the file's size or offset;

      * the name of the file system containing the file;

      * any available components of the file's path name;

      * the names of the file's stream components;

      * the file's local and remote network addresses;

      * the TLI network (typically UDP) state of the file;

      * the TCP state, read queue length, and write queue length
        of the file;

      * the file's TCP window read and write lengths (Solaris
        only);

      * other file or dialect-specific values.


Getting Started Quickly
=======================

If you want to get started using lsof quickly, or see some examples
of how lsof can be used, consult the 00QUICKSTART file of the lsof
distribution.

The 00QUICKSTART file won't help you build or install lsof, but it
will cut through the density of the lsof man page, giving you more
readily an idea of what you can do with lsof.

For information on building and installing lsof, consult the 00README
file of the lsof distribution.


Limiting, Filtering, and Selecting Lsof Output
==============================================

Lsof accepts options to limit, filter, and select its output.
These are the possible criteria:

    * Process ID (PID) number -- to list the open files for a given
      process;

    * Process Group ID (PGID) -- to list the open files for all
      the processes of a given process group;

    * User ID number or login name -- to list the open files for
      all the processes of a given user;

    * Internet address -- to list the open files using a given
      Internet address (host name), protocol, or port (number or
      name); or to list all open Internet files;

    * command name;

    * file descriptor name or number;

    * list all open NFS files;

    * list all open Unix domain socket files;

    * list all uses of a specific file;

    * list all open files on a file system.

Selection options are normally ORed -- i.e., an open file meeting
any of the criteria is listed.  The selection options may be ANDed
so that an open file will be listed only if it meets all the
criteria.

In the absence of any selection criteria, lsof lists files open to
all processes.


Parsing Lsof Output with Another Program
========================================

The lsof -F option directs it to produce "field" output that can
easily be parsed by another program.  The lsof distribution contains
sample awk, perl 4, and perl 5 scripts in its scripts subdirectory
that show how to post-process field output.


Repeat Mode
===========

Lsof can be directed to produce output, delay for a specified time,
then repeat the output, cycling until stopped by an interrupt or
quit signal.  This mode is useful for monitoring the status of some
file operation -- e.g., an ftp transfer or a tape backup operation.

Repeat mode is more efficient when combined with lsof's selection
options, since they limit lsof overhead.

It's possible to use lsof's field output options to supply repeat
mode output to another process for its manipulation.  The scripts
subdirectory of the lsof distribution has sample Perl scripts
showing how to consume lsof repeat mode output from a pipe.


Distribution Restrictions
=========================

Lsof may be used and distributed freely, subject to these limitations:

1. Neither the author nor Purdue University is responsible for
   any consequences of the use of this software.

2. The origin of this software must not be misrepresented, either
   by explicit claim or by omission.  Credit to the author and
   Purdue University must appear in documentation and sources.

3. Altered versions must be plainly marked as such, and must not
   be misrepresented as being the original software.

4. This notice may not be removed from or altered in the lsof source
   files.


Cautions
========

Lsof is a tool that is closely tied to the Unix operating system
version.  It uses header files that describe kernel structures and
reads kernel structures that typically change from OS version to
OS version.

DON'T TRY TO USE AN LSOF BINARY, COMPILED FOR ONE UNIX OS VERSION,
ON ANOTHER.

On some Unix dialects, notably SunOS and Solaris, lsof versions
may be even more restricted by architecture type.  An lsof binary,
compiled for SunOS 4.1.3 on a sun4c machine, for example, won't
work on a sun4m machine.

AN LSOF BINARY, COMPILED FOR ONE SOLARIS 1.X ARCHITECTURE, ISN'T
GUARANTEED TO WORK ON A DIFFERENT SOLARIS 1.X ARCHITECTURE.


Distribution Contents
=====================

The lsof distribution is checked for completeness when it is
constructed and by the Inventory script when you run the Configure
script.  (See The Inventory Script section of the 00README file of
this distribution.)

Lsof is organized in these parts:

    *  The main lsof directory, containing common sources,
       configuration and setup scripts and three subdirectories:
       dialects/, lib/, and scripts/.

       Lsof is compiled in the main lsof directory after configuration.
       The selected dialect sources are copied or linked from the
       specified subdirectory.  (Symbolic linking is the standard
       method.)

       Common lsof definitions may be found in lsof.h; common
       function prototypes, proto.h; and common storage, store.c.

    *  The dialects/ subdirectory contains subdirectories with
       sources specific to UNIX dialect implementations -- e.g.,
       the dialects/sun/ subdirectory contains sources for the
       SunOS (Solaris 1.x) and Solaris (2.x) implementations of
       lsof.  The dialects subdirectories also contain Makefiles
       and scripts for assisting dialect source configuration.

       Dialect configuration definitions may be found in dlsof.h;
       other dialect definitions, dlsof.h; dialect prototypes,
       dproto.h; and dialect storage, dstore.c.

    *  The lib/ subdirectory contains sources for common lsof
       functions.  Not all dialects use the functions -- some have
       their own versions of them.  The lib/ functions are enabled
       and customized with #define's in the dialect machine.h header
       files.

    *  The scripts/ subdirectory contains sample scripts for
       processing lsof field (-F) output.  The scripts are written
       in AWK, Perl 4, and Perl 5.

The 00PORTING file of the lsof distribution has more information
on lsof components, configuration, and construction.


Warranty
========

Lsof is provided as-is without any warranty of any kind, either
expressed or implied, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose.
The entire risk as to the quality and performance of lsof is with
you.  Should lsof prove defective, you assume the cost of all
necessary servicing, repair, or correction.


Bug Reports
===========

Now that the obligatory disclaimer is out of the way, let me hasten
to add that I accept lsof bug reports and try hard to respond to
them.  I will also consider and discuss requests for new features,
ports to new dialects, or ports to new OS versions.

PLEASE DON'T SEND A BUG REPORT ABOUT LSOF TO THE UNIX DIALECT
VENDOR.

At worst such a bug report will confuse the vendor; at best, the
vendor will forward the bug report to me.

Please send all bug reports, requests, etc. to me via email at
<abe@purdue.edu>.


The lsof-l Mailing List
=======================

Information about lsof, including notices about the availability
of new revisions, may be found in mailings of the lsof-l listserv.
For more information about it, including instructions on how to
subscribe, read the 00LSOF-L file of the lsof distribution.


Version 3 Release Notes
=======================

See 00DIST in the last lsof 3 revision 3.88, for its complete
set of release notes.  Lsof revision 3.88 may be found at:

        ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/OLD

3.0             May 24, 1994
                This is the first official release of lsof 3.

...

3.88            February 17, 1997

                +======================================+
                | This is the last version 3 revision. |
                +======================================+

                Added documentation files -- 00.README.FIRST[_<version>]
                and 00RELEASE.SUMMARY_<version> -- to the distribution.


What's new in Version 4
=======================

The main goal of version 4 was to eliminate the confusing common/
fragment source file technique.  Changing the version number also
provided an opportunity to restart the numbering, which at 3.88
had risen to a large value.

The sources that appeared in the dialects/common subdirectory of
version 3 in fragment files have been incorporated into the version
4 liblsof.a library as *.c files.  This results in significant
changes to many source files, scripts, and Makefiles of all dialect
versions.  It allows elimination of some source files -- ddev.c,
dfile.c, dmnt.c -- for dialects now obtaining functions from
liblsof.a that formerly came from making dialect source files by
combining fragment files.

The version 4 liblsof.a sources are stored in the lib/ subdirectory
of the main lsof directory.  The liblsof.a functions are activated
and conditioned in their source files by values #define'd in the
dialect dlsof.h and machine.h header files.

Dialects that provide a private version of a library function refrain
from #define'ing the symbol that would activate the library function
code.


Version 4 Release Notes
=======================

4.0             February 24, 1997

                +====================================+
                | This is the first lsof 4 revision. |
                +====================================+

                Reorganized sources: eliminated code fragment files
                and created a library in their place.  Modified or
                deleted many dialect source and header files.
                Changed documentation accordingly.

                Added a warning to sgi/Makefile and 00FAQ that advises
                against using the IRIX C compiler -n32 option when
                compiling lsof.  Thanks go to Peter Ilieve
                <peter@memex.co.uk> for bringing this to my attention.

                Dropped IRIX 5.2 in mid-stream, because my 5.2 test
                system was upgraded to 5.3.

4.01            March 3, 1997
                Added TFS support for Pyramid dialects.

                Added test to Configure and to the IRIX dnode.c
                for the different cnode struct that appears in
                <cachefs/cachefs_fs.h> on the 6.2 IMPACT distribution.
                Heddy Boubaker <boubaker@amfou.cenatls.cena.dgac.fr>
                alerted me to the cnode change and helped test this
                lsof adjustment.

                Shut down the lsof child process before doing a -r
                sleep().  A comment from Dan Mercer <dam@mmm.com>
                prompted this.

4.02            March 21, 1997

                Based on a report from Pasi Kaara <Pasi.Kaara@atk.tpo.fi>,
                disabled HP-UX CCIT support in lsof for HP-UX
                versions 10 and above.  Pasi's report also led to
                changes in the HP-UX machine.h to support use of
                gcc to compile lsof for HP-UX 10.20 and warnings
                against using `cc -Aa` or `gcc -ansi` to compile
                lsof under HP-UX 10.x.

                With help from Richard Allen <ra@hp.is> taught
                HP-UX 10.x lsof to name file systems better by
                using the virtual file system device number.  Elias
                Halldor Agustsson <elias@rhi.hi.is> provided a test
                system.

                Changed NEXTSTEP and UNIXWARE Makefiles to use
                safer quoting when generating version.h.  The change
                was suggested by Bob Farmer <ucs_brf@unx1.shsu.edu>.

                Added SHELL=/bin/sh string to all Makefiles.

                Added support for Linux 2.1.28 on a test system,
                kindly provided by Jonathan Sergent <sergent@purdue.edu>.
                Configure tests the Linux 2.1.x's C library lseek()
                function for proper handling of kernel offsets.
                If lseek() appears suspect, Configure activates
                the use of a private lseek() function.  Changed
                the private nlist() function to nlist_private()
                and taught it to use the query_module() syscall in
                place of the deprecated get_kernel_syms() one.
                Added rudimentary AX.25 support for Pierfrancesco
                Caci <ik5pvx@infogroup.it> who helped test it.
                Updated the old get_kernel_syms() code to recognize
                and skip module name entries.

                Prompted by Marty Leisner <leisner@sdsp.mc.xerox.com>,
                eased the requirement that service name lookup for
                the -i option be accompanied by a protocol name.  The
                name is not needed if both TCP and UDP names yield the
                same port number.

                Added xusers.awk script from Dan Mercer <damercer@mmm.com>
                to the distribution scripts/ subdirectory.

                Changed Configure script to use LSOF_VERS for all
                UNIX dialect version numbers and to pass LSOF_VERS
                to the dialect Mksrc functions.  Also added the
                ability for a dialect stanza to declare a different
                dialect Makefile source.  Modified dialect Mksrc
                files -- e.g., linux and sun -- accordingly.

                Added support for BSD/OS 3.0 with help from Jim
                Reid <jim@mpn.cp.philips.com>.  Terry Kennedy
                <TERRY@spcvxa.spc.edu> kindly provided a test
                system.  During the port corrected a bug that
                prevented proper handling of revoked files.

4.03            April 7, 1997
                At the suggestion of Dan Mercer <damercer@mmm.com>,
                made HP-UX building of lsof aware of differences
                between the HP-UX bundled and unbundled C compilers.

                Added the ability for the lsof builder to define the
                default warning message issuance state.  By default the
                issuance of warning messages is disabled; defining
                WARNINGSTATE in machine.h disables it.  The Customize
                script was updated to handle WARNINGSTATE.  Dan Mercer
                suggested this.

                Eliminated compiler complaint about improperly cast
                get_Nl_value() argument in ncache_load() in lib/rnch.c.

                Corrected zeromem() argument error in SCO dproc.c.
                Sped up parent directory cache lookup slightly.

                Updated for PTX 4.4, including additional VxFS (EFS)
                file system support.

4.04            April 17, 1997
                At the suggestion of Bela Lubkin <belal@sco.COM>
                changed device cache handling to be more tolerant
                of a device cache file whose [cm]times are older
                than the ones on /dev or /devices.  The change
                required adding information to Solaris device cache
                file clone lines, so the first time lsof 4.04 is
                run under Solaris it will complain about a bad
                cached clone device in a previous device cache
                file, then regenerate it.

                Added boot file path detection for SCO OSR 5 and
                above, based on information supplied by Bela.

                Fixed two bugs in DEC OSF/1 lsof -- an error in
                reporting locks and a missing continue statement
                in readdev() after a failure to open a directory.
                Jan Ole Suhr <josuhr@informatik.tu-clausthal.de>
                reported the second bug and supplied a fix.

                Fixed XFS problems with IRIX 6.2 by abandoning the
                idea that SGI will distribute XFS header files and
                defining an lsof-private xfs_inode structure.  John
                Paul Morrison <John.Paul.Morrison@MultiActive.com>
                helped develop and test the 5.3 definition.  John
                R. Vanderpool <fish@daacdev1.gsfc.nasa.gov> helped
                develop and test the 6.2 definition.

                Remove obsolete comments about common/*.frag files.

                Updated Linux lsof for Linux version 2.1.35.

4.04            April 18, 1997
Supplement      Regenerated the 4.04 distribution to correct a non-
                device-cache #define misplacement in the Solaris and
                SunOS dlsof.h.  Alexandre Oliva <oliva@dcc.unicamp.br>
                reported the problem.

4.05            April 24, 1997
                Corrected an error in 00DCACHE.

                Made sure SCO /etc/ps/booted.systems is closed.

                Based on an observation by Bela Lubkin <belal@sco.COM>
                that the lsof child had needless file descriptors
                open, closed all but the open pipes between the
                lsof parent and child.

                Decommissioned CDC EP/IX support; I no longer have a
                test system.

                Based on a suggestion from Patrick Connor
                <connor@phreak.csd.sgi.com>, added -xansi to CFLAGS
                for IRIX 5.3 and 6.[234].

                Also at Patrick's suggestion changed Configure to
                propagate exact SunOS 4.1.x version to the main
                and library Makefiles.  This allowed the sunos413
                and sunos413cc Configure abbreviations to be
                shortened to sunos and sunoscc.

                Updated obsolete argument uses (-H changed to -n)
                in count_pf.perl* and watch_a_file.perl scripts.

                Adjusted Solaris 2.6 lsof for Beta_Update with tips
                from Casper Dik <casper@holland.Sun.COM>.

                Fixed a Solaris 2.4 TCP address reporting bug.

4.06            April 30, 1997
                Added a step to the Makefile clean rules that does
                a make clean in the lib subdirectory; suggested by
                Casper Dik <casper@holland.Sun.COM>.  (Configure's
                -clean argument already did this.)

                Fixed an incorrect awk argument in the sunos*)
                Configure stanza, reported by Alexandre Oliva
                <oliva@dcc.unicamp.br>.

                Added CD9660 (aka ISO) file system support to
                FreeBSD, NetBSD, and OpenBSD with mods and help
                from Kenneth Stailey <kstailey@disclosure.com>.
                (BSDI already had CD9660 support.)  While at it,
                added file descriptor system support to BSDI and
                FreeBSD.

                Added /kern file system support to OpenBSD.  The
                support wasn't extended to BSDI, FreeBSD, or NetBSD,
                because it requires Kenneth Stailey's changes to
                /sys/miscfs/kernfs/kernfs.h.

                Updated IRIX 6.3 support after getting access to
                a test system, provided by John Paul Morrison
                <John.Paul.Morrison@MultiActive.com>.  Improved
                the handling of IRIX 5.1 and greater FIFOs.

4.07            May 12, 1997
                Based on AIX problem reports from David Capshaw
                <David.Capshaw@SEMATECH.Org>, changed the aix*
                Configure script stanza to avoid -bnolibpath for
                gcc (which the GNU loader doesn't grok) and AIX
                below 4.1.4 (where -bnolibpath hasn't been tested
                or is known to be unimplemented), and to refuse to
                use gcc for compiling lsof in AIX versions below
                4.1 (because of possible structure alignment
                problems).  Updated 00FAQ appropriately.

                Added OpenBSD support for EXT2FS.  This support
                has yet to be tested.
                
                Tested lsof under OpenBSD 2.1.

                Activated /kern file system support for NetBSD when
                Configure senses that /sys/miscfs/kernfs/kernfs.h
                defines the kern_target structure.  This support
                has not been tested under NetBSD, although it has
                been tested under OpenBSD.

                Made some simple changes to the BSDI machine.h,
                suggested by Jeffrey C. Honig <jch@bsdi.com>.

                Improved handling of alternate dialect Configure
                abbreviations -- aix and aixgcc, hpux and hpuxgcc,
                solaris and solariscc, and sunos and sunoscc.

4.08            May 23, 1997
                Cleaned up dialect Makefile's, staring with a suggestion
                from Christopher Schanzle <chris@cam.nist.gov>.

                Improved Configure's -clean processing.

                Corrected bugs in Solaris lock reporting.

                Changed NetBSD Configure stanza to put -I/usr/include
                before -I/sys.

4.09            June 1, 1997
                Adjusted for latest FreeBSD 3.0 release.  This
                required adding a new kernel name cache module for
                reading BSD-form hashed kernel name cache entries,
                rnmh.c, to the lsof library, and adding a #define
                to each machine.h to select it.

                Activated rnmh.c for BSDI 2.1, BSDI 3.0, NetBSD
                1.2, and OpenBSD 2.1.

4.10            June 8, 1997
                Adjusted for Linux 2.1.x (x > 35) kernels with
                hashed task structure pointers.  Marty Leisner
                <leisner@sdsp.mc.xerox.com> and Jonathan Sergent
                <sergent@io.com> tested the adjustment.

                Replaced readdev() stat() calls with lstat() to
                reduce device table and cache entries with the same
                device number and inode values.  Added code to
                remove all remaining duplicates.  This fixes a
                Linux problem reported by Jonathan Sergent and
                makes device node name output predictable.

                Corrected a bug in UnixWare stream file handling
                that prevented searching for the stream file by
                its associated character device name.

                Added Pyramid code to determine Reliant UNIX clone
                major device number differently from that of DC/OSx.

4.11            June 12, 1997
                Changed Configure to sense that the PTX inp_[fl]addr
                members of the inpcb structure of <netinet/in_pcb.h>
                have a struct type and set HASINADDRSTR for use in
                PTX dnode.c and dsock.c tests.

                Changed PTX version 4.1.4 tests to use 4.1.3 instead.
                Carson Wilson <carson@mcs.com> reported the need
                to do this and tested the change.

                Fixed a block device table indexing bug in lib/rdev.c,
                reported by Carson Wilson.  The same bug was squashed
                in pyramid/ddev.c.

                Added code to the Pyramid Reliant UNIX kread()
                function to compensate for an address boundary
                error in the kernel's /dev/kmem driver.

                Verified that lsof compiles and works under AIX
                4.2.1.  Added an AIX test for the presence of NFS
                header files, defined HAS_NFS and adjusted AIX
                dialect sources accordingly.

                Based on a suggestion from Gaylord Holder
                <holder@phy.ucsf.EDU>, added DEC OSF/1 code to
                auto-detect the booted file, whence kernel symbol
                addresses are obtained.

4.12            June 24, 1997
                Corrected a device number sign extension problem
                in the reading and writing of device cache file.
                The problem was reported by Bela Lubkin <belal@sco.com>
                and he suggested a fix.

                Fixed an SCO stream device lookup problem.  The
                report and solution came from Bela Lubkin

                Enhanced the Configure script to enable cross-
                configuration of lsof, based on suggestions from
                Marty Leisner <leisner@sdsp.mc.xerox.com>.  A new
                documentation file, 00XCONFIG, describes the process.

                Made Pyramid OBJFS support conditional on the
                presence of supporting header files.  Corrected
                the Pyramid MkKernOpts script so it generates the
                necessary -D's for the Nile/Jolt architecture.
                Richard Coley <rcoley@pyra.co.uk> helped.

                Added another IRIX xfs_inode variant for 6.2, 32
                bits, no XFS rollup patch.

                Tested under UnixWare 2.1.2.

4.13            July 9, 1997
                Taught Pyramid lsof to grok ttyfs vnodes with help
                from Richard Coley <rcoley@pyra.co.uk>.  Fixed some
                minor bugs in Pyramid FIFO reporting.  Eliminated
                use of the Pyramid UCB compatibility library at
                Richard's suggestion.

                Eliminated reporting of "strange" inode numbers
                for SCO OSR 3.2v5.0.x HPPS files with help from
                Bela Lubkin <belal@sco.com>

                Modified port to service name lookup to use a small
                number of getservbyport() calls before reading the
                entire map with getservent().  Changed port reporting
                to represent a zero as `*' to be consistent with
                other prt number reporting tools like netstat.
                Casper Dik <casper@holland.Sun.COM> suggested these
                changes -- the getserv*() one to improve performance
                for large NIS service name maps.

                Changed all readdev() functions to make the absence
                of block devices a warning instead of a fatal error
                after Brian Redman <ber@ms.com> reported his IRIX
                6.4 system had no block devices.  (It really did
                have block devices, but readdev()'s lstat() use
                caused it to miss them in a directory symbolically
                linked from /dev/dsk->/hw/disk.)  Fixed Brian's
                real problem by changing the IRIX readdev() to use
                stat() on /dev nodes if a Configure test shows /hw
                is readable.  Extended the potential to do the same
                to all readdev() functions.

                For consistency and convenience changed some
                Configure abbreviations and dialect subdirectory
                names:  "decosf" abbreviation and "osf" dialect
                subdirectory name to "du"; "netbsd" dialect
                subdirectory name to "n+obsd"; "next3" abbreviation
                and "next" dialect subdirectory name to "ns"; "sco"
                abbreviation and dialect subdirectory name to "osr";
                "sgi" dialect subdirectory name to "irix"; and
                "unixware" abbreviation and dialect subdirectory
                name to "uw".

                Added #if/#endif clauses to the AIX rmdupdev()
                function to avoid clone processing for AIX versions
                less than 4.1.4.  The problem was reported by Toralf
                Foerster <toralf.foerster@io-warnemuende.de>, who
                supplied corrective code.

                Added support for new style NetBSD inode with i_ffs
                and i_e2fs union members.

                Improved Configure and 00FAQ information on Digital
                UNIX configuration subdirectory with suggestions
                from Brad Krebs <brad@EECS.Berkeley.EDU>.

4.14            July 22, 1997
                Reorganized the Solaris handling of the inode
                structure header file, ufs_inode.h, to eliminate
                VxFS structure definition conflicts for Solaris
                2.4, based on information from Greg Earle
                <earle@netbsd4me.jpl.nasa.gov>.

                Cleaned up some typos and confusion in Configure's
                help output, based on comments from Bela Lubkin
                <belal@sco.com>

                Added a 00DIALECTS file, containing UNIX dialect
                version numbers, that can be used by Configure and
                the man page.

4.15            August 15, 1997
                Aligned `Configure -help` output better.  Removed
                Configure's 2.6 Beta test adjustments.

                Added improved Solaris VxFS configuration and
                handling, based on information from Greg Earle
                <earle@netbsd4me.jpl.nasa.gov>.

                Added socket state -- TCO or TPI -- for socket
                files at the suggestion of Ian Fitchet
                <I.D.Fitchet@ftel.co.uk>.

4.16            September 25, 1997
                Added reporting of TCP/TPI queue lengths and window
                sizes ala netstat to NAME column.  Added -T option
                to select or de-select TCP/TPI info reporting.
                (Window sizes are only reported for Solaris.)
                Fixed anomalies along the way in SIZE/OFF processing
                for some dialects.

                Fixed service name argument processor to allow
                minus signs as part of the name.  Consequently this
                disallows names with embedded minus signs from
                being specified as the start of a range.

                Added 00FAQ entries explaining why lsof won't find
                a file being edited with vi, why window sizes aren't
                reported for all dialects, and what the "no more
                information" message means.

                Forced Pyramid CC to be /usr/ccs/bin/cc to avoid
                accidental use of the BSD variant in /usr/ucb/cc.

                Added support for Linux glibc2, including a Configure
                test; cross-Configure support (00XCONFIG); and much
                unfortunate and risky sleight-of-hand in lsof Linux
                dialect header and source files, forced upon lsof
                by incompatibilities between Linux kernel and glibc2
                header files.

                Included in scripts/identd.perl5 a Perl 5 implementation
                of an identd server, using lsof, provided by Kapil
                Chowksey <kchowksey@hss.hns.com>.

                Updated IRIX 6.4 xfs_inode guess.

4.17            October 14, 1997
                Added -V option for verbose search result reporting.
                Verbose reports are prepared for failure to locate
                file names, command names, Internet addresses or
                files, login names, NFS files, PIDs, PGIDs, and UIDs.

                Augmented Linux NFS file test to cope with kernels
                whose NFS code is in a loadable module.  Need for
                the test was pointed out by Jonathan Sergent
                <sergent@csociety.ecn.purdue.edu>.  The change
                required that Linux have private dmnt.c source,

                Completed a Linux 2.1.57 port on a system provided
                by Jonathan Sergent.

4.18            October 25, 1997
                Eliminated memory leaks in alloc_lfile(), lkup_port(),
                and NEXTSTEP's process_text() function.

                Added recognition of OpenBSD 2.2 in Configure,
                supplied by Kenneth Stailey <kstailey@disclosure.com>.

                Consolidated print_file() functions to use the one
                in lib/prtf.c.  Made it configurable and changed
                it to size print columns dynamically.

                !!! WARNING !!!

                WITH DYNAMICALLY SIZED PRINT COLUMNS LSOF 4.18
                PRODUCES OUTPUT SIGNIFICANTLY DIFFERENT FROM THAT
                OF PREVIOUS REVISIONS.  LINES ARE GENERALLY SHORTER
                AND THERE IS GENERALLY LESS BLANK SPACE BETWEEN
                COLUMNS AND THE ITEMS IN THEM.  THERE ARE NO LONGER
                ANY SPACES BETWEEN DEVICE NUMBER ELEMENTS, ONLY
                COMMAS.

                !!! WARNING !!!

                Added special types and print specification modifiers
                for file size and offset to handle UNIX dialects
                with 64 bit sizes and offsets.  Paul Eggert
                <eggert@twinsun.com> reported the need for this
                addition.

                With Paul Eggert's help picked lint from the lsof
                library, the main level lsof sources, and the Sun
                dialect sources.

                Added documentation, including the file 00LSOF-L,
                about the lsof-l LISTSERV.

                Added support for Reliant UNIX on the RM600.  Bob
                Passarella <rmpassar@pyramid.com> supplied the
                changes.  Kevin Smith <kevin@pyramid.com> helped
                arrange test systems.  While incorporating Bob's
                changes, modified lib/rnch.c to handle kernel ncache
                structs whose name is accessed via a char *, rather
                than in a char array.

                Changed #include order of <sys/socketvar.h> for
                Solaris 2.x.  W. Richard Stevens <rstevens@kohala.com>
                pointed out the need to do this.

4.19            October 30, 1997
                Changed Pyramid Reliant RM600 proc scan to skip
                SSYS (p_flag) processes, since they don't seem to
                have a readable u_cdir vnode.

                Enabled Pyramid Reliant UNIX kread() work-around
                for DC/OSx, too, since its read(/dev/kmem) kernel
                driver seems to share the page boundary bug this
                work-around circumvents.

                Changed SzOffFtm_d and SzOffFtm_dv (new formats at
                4.18 to print size and offset) from signed to
                unsigned.  Setting them signed at 4.18 was an
                oversight.

                Plugged a memory leak that caused the loss of 130
                bytes per repeat-mode pass.  Fixed it with a simple
                work-around in main().  Lionel Cons <Lionel.Cons@cern.ch>
                reported the leak.

4.20            November 11, 1997
                Tested under BSDI 3.1.

                Added support for Reliant UNIX Mesh IPC files with
                help from Billy Ho <bho@pyramid.com>.

                Added support to Digital UNIX lsof that uses the
                libmsfs tag_to_path() function (when it exists) to
                look up AdvFS path names.  The idea and sample code
                came from Dean Brock <brock@cs.unca.edu>.  Converted
                Dean's code into more general purpose support for
                private name cache lookups via the HASPRIVNMCACHE
                #define in the dialect machine.h file and code
                conditional on it in the printname() function.

                Taught Digital UNIX lsof to recognize NFS3 file
                systems.  Corrected Digital UNIX lsof DEVICE column
                alignment.

4.21            December 1, 1997
                Squashed bug, introduced at revision 4.18, that
                resulted in double reporting of each selected PID
                when terse mode (-t) was specified.

                Corrected minor bug, also introduced at 4.18, that
                might cause an extra print_proc() pass when one
                PID has been specified.

                Added -R to lsof options in scripts/idrlogin.perl*.
                The option should have been there -- it was supposed
                to be mandatory for PGID reporting -- but a bug,
                corrected in revision 4.18, previously made -R
                unnecessary.

                Enabled configuring for BSDI BSD/OS 4.0 per a
                suggestion from Jeff Honig <jch@bsdi.com>.

                Enabled replacement of scoff_t with off64_t (scoff_t
                is used to type r_size and r_localsize in the rnode
                struct) for IRIX 5.3 systems that have the NFS
                kernel rollup patch (1477).  This compensates for
                SGI's failure to distribute an updated <sys/fs/rnode.h>
                with their patch.

                Validated under Linux 2.0.3[12], Linux 2.1.64, and
                NetBSD 1.3.

                Added FreeBSD root directory reporting, courtesy
                of Dan Nelson <dnelson@emsphone.com>.

4.22            December 15, 1997
                Made adjustments for Linux 2.1.7[02].

                Improved NAME information for Linux UNIX domain
                sockets.

                Added option +|-M to control the reporting of
                portmapper registration information in square
                brackets after the TCP or UDP port or service name.
                Kenneth Stailey <kstailey@disclosure.com> suggested
                the feature and provided sample code from OpenBSD.
                Reporting is disabled by default in the distribution
                and may be enabled with +M; if lsof is compiled
                with HASPMAPENABLED (e.g., from machine.h), reporting
                will be enabled by default and can be disabled with
                -M.

                Changed the -w option to +|-w to match the syntax
                of the +|-M option and to eliminate any options
                that flip meaning when a symbol is defined at
                compile time.  For both +|-M and +|-w, specifying
                `-' when the default state is disabled or specifying
                `+' when the default state is enabled causes no
                problems.

        !!!WARNING  The -w option has changed in lsof 4.22.  WARNING!!!

                Made the +|- prefix legal for most options, but
                didn't document it in the man page or help panel.
                Most options that disable something -- e.g., -b,
                -C, -n, -P -- now disable when the prefix is `-'
                and enable when it is `+'.  Since the states these
                options disable are enabled by default, I chose to
                avoid documentation complexity and confusion by
                not mentioning that they can be used with the `+'
                prefix.

                Condensed the help panel.

                Made sure Digital UNIX Configure stanza puts normal
                include path (e.g., /usr/include) before system
                include paths.

                Added IPX socket information reporting to Linux
                with help from Jonathan Sergent <sergent@purdue.edu>.

4.23            January 16, 1998
                Fixed conflict arising from the quondam replacement
                of the Sun Solaris <netdb.h> with a BIND/BSD version.

                With help from Jonathan Sergent <sergent@purdue.edu>
                developed a /proc file system based Linux lsof.
                It needs some Linux 2.1.x release to work -- I'm
                not sure which, but I tested under 2.1.72, 2.1.76,
                and 2.1.79.  The Configure script selects special
                sources for this lsof, so the full lsof distribution
                now contains both /dev/kmem and /proc based sources
                for Linux lsof.  An optional kernel mod, written
                by Jonathan, enhances the /proc-based lsof ability
                to recognize IPX socket files.  Reorganized and
                augmented the Linux sections in 00FAQ to explain
                the two types of Linux lsof.

                Defined DOSTAT_FUNCTION for dostat() in misc.c to
                select the function, stat() or lstat(), it will use.
                DOSTAT_FUNCTION is normally undefined, defaults to
                lstat(), and is only defined for the /proc-based
                Linux lsof in its dlsof.h.

                Made conditional on the presence of IRIX 6.4 XFS
                rollup patch #6 an XFS node change introduced in
                revision 4.16.   Identified the patch with help
                from John R. Vanderpool <fish@daacdev1.gsfc.nasa.gov>.

                Added NFS node compensation for NetBSD 1.3.  The
                code and suggestion for it was supplied by Jean-Luc
                Richier <richier@imag.fr>.

                Added diagnostic messages to the /dev/kmem-based
                Linux Mksrc script to report errors during the
                construction of the kernel name cache header file,
                kncache.h.  Added 00FAQ information on kncache.h.

                Added a new Linux test host, running 2.0.33 and
                GlibC, provided by Steve Logue <stevel@mail.cdsnet.net>.

                Ported to PTX 4.1.3 and 4.4.2.  Adjusted lib/rnch.c
                for 4.4.2 to allow customization f additional ncache
                struct element names.

4.24            January 28, 1998
                Changed /proc-based Linux lsof offset test to use "/"
                instead of "/etc/passwd".

                To assist Jim Mintha <jim@geog.ubc.ca> with the
                packaging of lsof for Debian Linux, added a
                DEBIAN_LINUX_LSOF #define to trigger the activation
                of special system map file location code in the
                /dev/kmem-based dproc.c.

                Applied modification to dialects/bsdi/dlsof.h from
                Ingimar Robertson <iar@skyrr.is>, enabling lsof to
                compile for BSDI BSD/OS 2.0.

                Corrected a documentation error in 00DCACHE, pointed
                out by Thomas Anders <anders@hmi.de>.  The error was
                created when the -V option was added at lsof 4.17.

                Made IRIX 5.3 through 6.3 lsof aware of IRIX SCSI
                tape devices (e.g., /dev/tape).  Dave Olson of SGI
                and Randolph J. Herber of FNAL provided valuable
                advice, and Igor Schein <ischein@air-boston.com>
                helped test.

                Added a machine.h symbol (NEVER_HASDCACHE) that
                prevents Customize from offering to change HASDCACHE.
                The symbol may appear anywhere in machine.h --
                e.g., in a comment.  Included the symbol in a
                comment of the HASDCACHE section of the /proc-based
                Linux lsof machine.h, and accompanied it with
                warnings against #define'ing HASDCACHE.  Did the
                same thing for WARNDEVACCESS (NEVER_WARNDEVACCESS
                is the suppressant.)

4.25            February 7, 1998
                Corrected an IRIX mis-cast of file offset (position).
                Igor Schein <ischein@air-boston.com> reported the
                problem.  This was offered as a patch to 4.24.
                Picked some lint Igor pointed out.

                At Igor's suggestion added an optional decimal
                digit size argument to the -o option.  This argument
                specifies how many file offset decimal digits can
                follow "0t" before lsof switches to a "0x..." form.
                The argument size specification doesn't count the
                two characters of the "0t".  A size of 0 means
                unlimited.  The default is OFFDECDIG (8), preserving
                compatibility with existing lsof output; it can be
                changed by the lsof builder.  When size is specified
                with -o it does not force offset display; -o without
                a size still must be used to do that.

                Added an IRIX 6.2, 32 bit system, XFS node patch,
                courtesy of Ulrich Bernhard <rzubu@rzu.unizh.ch>.

                For my own convenience enabled Configure to use
                /usr/local/bin/gcc for NEXTSTEP.  This allows
                circumvention of a gcc 2.8.0 ranlib problem on
                my test 3.1 `040 cube.

                Added flags recommended by the RISC/os and Ultrix
                compilers for the updated (and longer) main.c.

                Updated FreeBSD cd9660_node.h Configure test.

4.26            February 17, 1998
                Added shared process group processing for IRIX 5.3,
                and IRIX 6.1 and above, based on investigation of
                a bug report from Igor Schein <ischein@air-boston.com>.
                Igor helped test this addition.

                Improved handling of file system name arguments.
                It's now done in a manner similar to fuser.  The
                -f argument forces path names to be considered as
                simple files, rather than as file system names.
                The +f flag forces them to be considered as file
                system names.  Normally path arguments are considered
                file system names when they match a mounted-on
                directory in the system's mount table, or when they
                match a mounted file system's block device.  Igor
                Schein helped test this change.

                Igor also suggests that the proper compilation of
                the IRIX 6.4 proc structure after patch 2536 has
                been installed may need -DPIOMEMOPS.  So lsof's
                MkKernOpts script was updated to propagate that
                option from CCOPTS in /var/sysgen/system/irix.sm,
                even though patch 2536 doesn't add -DPIOMEMOPS to
                it.  Added a 00FAQ item on this patch.

                Added a fatal warning message about names forced
                to be file system names (with +f) that have no
                match in the mount table.

                Improved the -V message for files and file systems
                for which no open files were found.  Added reporting
                of /proc file and file system search failures.

                Did some code reorganization to combine the multiple
                ck_file_arg() functions into one.  Moved the new
                function from the library to the top level and put
                it in arg.c; moved the usage function from arg.c
                to a new top-level source file, usage.c, to balance
                top-level source file size.  The new usage.c depends
                on version.h; arg.c no longer does.

                Added flag recommended by the DU compiler for the
                updated (and longer) main.c.

4.27            March 6, 1998
                At the request of Igor Schein <ischein@air-boston.com>
                added a conditional repeat mode option, using the
                `+' prefix to the `r' option.  +r operates as does
                -r with the exception that it exits the first time
                no open files have been listed during a cycle.
                The exit code will be zero when any open files have
                been listed; one, if none were ever listed.

                Ported lsof to HP-UX 11.0 with the help of Richard
                Allen.  This port hasn't been tested on a 64 bit
                kernel; I'm sure it won't work there without more
                mods.  It may not work on PA 2 architectures; I've
                only tested it under PA 1 and a separate, busy
                tester reported PA 2 problems that I've been unable
                to investigate.

                In anticipation of getting access to a 64 bit HP-UX
                kernel and the pending start of the Solaris 2.7
                Beta test (It will have 64 bit kernel addressing.),
                started adding support for 64 bit kernel pointers.
                This includes: ubiquitous use of the KA_T cast
                for kernel pointers; a format to print them,
                KA_T_FMT_X; a function to print them, print_kptr();
                and modifications to most kernel-related functions
                -- e.g., process_file(), process_node(),
                process_socket(), readvfs() -- to process kernel
                addresses as KA_T types.

                Fixed minor bug in handling path name arguments
                that end with a `/'.

                Removed support for RISC/os; its test system is no
                longer available.

                Made modifications to insure that lsof output
                doesn't contain non-printable characters.  All such
                characters are now printed in the printf form
                "\x%02x".  Several new common functions were
                installed in misc.c to support "safe" printing.
                This second major modification in 4.27 to common
                and dialect code could have introduced bugs not
                yet detected.

4.28            March 10, 1998
                Refined unprintable format to use \b, \f, \r, \n,
                \t, and ^* (for CTRL) forms.  Corrected omission
                of safestrprt() use for field output command name.
                These changes were offered as patches to 4.27.

                Made space an unprintable character (\x20) in the
                COMMAND column; printable elsewhere, including the
                NAME column, field output, and error messages.

                Made sure FD column is parseable as a single entity
                -- i.e., has no embedded space.  Thus, if the access
                mode is unknown but there is a known lock mode, (a
                very rare case) the access mode will be printed as
                `-'.

                Picked lint with gcc 2.8.0 under Solaris 2.6.

                With the help of Dave Olson of SGI identified a
                proc struct element that should have been added to
                <sys/proc.h> by IRIX 6.4 patch 2536.  Added a
                work-around for it to the lsof Configure script.
                Igor Schein <ischein@air-boston.com> identified
                that the patch caused a proc structure length
                complaint from lsof.  Removed an obsolete 00FAQ
                item on the patch, installed at lsof 4.26, explaining
                that no solution was yet available.

                Added a 00FAQ item on how BIND installs its own
                header files, including <netdb.h>, which may cause
                the rpcent struct definition to vanish.  Solaris
                has an automatic lsof work-around, but that hasn't
                been (and probably can't be) propagated to all
                dialects supported by lsof.  The 00FAQ item recommends
                re-installation of the vendor header files that
                BIND has replaced.  (Others include <rpcent.h>,
                <sys/bitypes.h>, and <sys/ctypes.h>.)

                Made AIX AFS fixes.

4.29            March 26, 1998
                Corrected bug in Internet address matching.  The
                matching formerly stopped if the foreign address
                matched, thus failing to check the local address
                for a match.  That led to a possible false "Internet
                address not located" warning (i.e., in response to
                -V) about the local address, when both foreign and
                local addresses were specified with -i.  This
                correction was offered as a patch to 4.28.

                Changed readmnt() usage in an attempt to defer
                mount readlink() and stat() delays until they are
                necessary.

                Corrected two bugs in the Digital UNIX readdev()
                function.  Made the correction available as a patch
                to 4.28 and regenerated the 4.28 DU binaries.

                Added a missing argument to a print-kptr() call in
                the HP-UX dsock.c.  The missing argument causes a
                fatal gcc error.  The problem was reported by Eyal
                Shaynis <eyal.shaynis@telrad.co.il>.  The fix was
                offered as a 4.28 patch.

                Adjusted for Digital UNIX 4.0D; the spec_node
                structure is now defined in <sys/specdev.h>.  Kris
                Chandrasekhar <Kris.Chandrasekhar@digital.com>
                identified the need for the adjustment.

                Incorporated a bug fix from Brian McAllister
                <mcallister@mit.edu> to the DU readmnt() function.
                This fix was offered as a patch to 4.28.

                Added "safe" printing to a SunOS clone device error
                message.

                Corrected bug in tabling of Linux /proc-based lock
                info.

                Corrected bug in handling of SunOS TLI streams.
                Dan Farmer <zen@trouble.org> reported the problem.

                Added a Solaris 2.6 work-around to keep the BIND
                <sys/bitypes.h> from colliding with the Solaris
                <sys/int_types.h>.

                Strengthened the Configure test for /proc-based
                Linux lsof, based on a report from Marty Leisner
                <leisner@sdsp.mc.xerox.com>.

                Tested on OpenBSD 2.3.

                Made AIX changes that allow use with 3.2.5.  The
                changes were suggested and tested by Brett Hogden
                <hogden@rge.com>.

                Added Solaris 2.6 AFS support.  Disabled reporting
                of some node numbers for Solaris 2.5 and above open
                AFS files.  The node number computation algorithms
                used for SunOS 4.1.x and Solaris less than 2.5 no
                longer always work under Solaris 2.5 and above.

4.30            April 9, 1998
                Corrected a pid structure member naming error for
                UnixWare < 2.1.2.  The problem was reported by
                Richard van Meurs <vanmeurs.anva@atriserv.nl>.  He
                supplied the correction.  This was offered as a
                patch to 4.29.

                Had a report from Igor Schein <ischein@air-boston.com>
                that IRIX 6.4 patch 2839 is another SGI kernel
                patch, along with 2536, that changes the size of
                the proc structure in the kernel without changing
                the proc structure in <sys/proc.h>.  Upon further
                investigation found that the effect of these patches
                on the proc structure is not consistent.  Therefore,
                dropped the Configure patch test for IRIX 6.4 and
                made the code in irix/dproc.c slightly more tolerant
                of proc structure size differences for IRIX 6.4.
                Igor help test the change.

                Corrected Solaris >= 2.5 AFS inode number generation.
                Craig Everhart <Craig_Everhart@transarc.com> helped
                find the cause of the problem.  This was offered as
                a patch to 4.29.

                Refined the Linux /dev/kmem-based glibc evasion
                for the timeval structure to make it work with
                glibc version 2.0.7.  This required defining a new
                global symbol, TIMEVAL_LSOF, default timeval, that
                the /dev/kmem-based Linux lsof can set to its
                private glibc timeval name, distinct from the kernel
                timeval name.

                Added support for Alpha to the /dev/kmem-based
                Linux lsof.  Alexandre Oliva <oliva@dcc.unicamp.br>
                provided a test system.  Added an item to 00FAQ
                about lsof, the Alpha processor, and Linux.

                Added a 00FAQ item about lsof year 2000 compliance.
                Basically it says lsof is probably compliant,
                because its only date or time computations are done
                with time_t values, but I haven't done any specific
                Y2K validation.  I don't have plans to do any.

                Added support for UnixWare 7.  Chris Daniels
                <chrisd@dlpco.com> provided a test system and Don
                Draper <dond@sco.COM> provided technical information.
                Added BFS and SFS file system support to lsof for
                UW 2.1.[12] and 7.

                Updated Solaris VxFS support for VxFS 3.2.1.  Greg
                Earle <earle@netbsd4me.jpl.nasa.gov> reported the
                need for the update.  Greg and Roger Klorese
                <rogerk@veritas.com> provided technical information.
                Scott McClung <mcclung@primenet.com> tested.

                Changed IRIX XFS patch detection in anticipation of
                learning there are multiple XFS patches for IRIX 6.4
                that require different versions of the lsof-invented
                xfs_inode structure.

4.31            April 21, 1998
                Added a VxFS #if/#endif wrap to a section of the
                HP-UX dnode.c that wasn't properly protected.  The
                problem was reported by  Peter Klosky <PKlosky@bdm.com>.
                This was offered as a patch to 4.30.

                Added support for Solaris 2.7 (first Beta release).
                Mike Sullivan <Mike.Sullivan@Eng.Sun.COM> provided
                technical advice and helped test.  Charles Stephens
                <cfs@jurassic.eng.Sun.COM> also helped test.

                Fixed bug in /proc-based Linux that caused it to
                access /proc/mounts excessively.  Marty Leisner
                <leisner@sdsp.mc.xerox.com> provided a syscall
                trace that identified the bug.  The fix was offered
                as a patch to 4.30.

                Adjusted the IRIX 6.4 private structure definition
                for the XFS node to accommodate patch 2970.  Igor
                Schein <ischein@air-boston.com> identified the
                patch and the required adjustment.
        
4.32            May 11, 1998
                Corrected Solaris 2.7 code for reporting PCFS
                (floppy disk) node numbers.  Casper Dik
                <casper@holland.sun.com> supplied the fix.  The
                fix was offered as a patch to 4.31.

                Corrected a bug in conditional repeat mode handling
                pointed out by Igor Schein <ischein@air-boston.com>.
                This was offered as a patch to 4.31.

                Improved reporting of AIX open(/dev/memory device)
                errors.

                Corrected a Solaris < 2.5 KA_T declaration error,
                pointed out by Robert Kiessling <robert@easynet.de>.
                Changed KA_T from a #define to a typedef for all
                dialects to prevent future problems of this kind.

                Changed the sample Perl 5 script big_brother.perl5
                to report a four digit year from localtime().

                Added support for AIX 4.3[.1].  Bill Pemberton
                <wfp5p@tigger.itc.virginia.edu> provided a test
                system.  Andrew Kephart <akephart@austin.ibm.com>
                and Tom Weaver <tvweaver@austin.ibm.com> provided
                technical assistance.  Niklas Edmundsson
                <nikke@ing.umu.se> did 4.3.1 testing.

                Added -qmaxmem option to CFLAGs for an AIX compilation
                with an xlc version 4.x compiler.

                Adjusted Linux socket handling for changes in the
                AX25 members of the sock struct.   Richard Green
                <rtg@tir.com> pointed out the problem.  Tested
                /dev/kmem-based lsof under Linux 2.0.34.

4.33            May 22, 1998
                Added generic IPv6 support to common lsof sources
                and specific IPv6 support to AIX sources.  Andrew
                Kephart <akephart@austin.ibm.com> supplied the
                additions and helped with testing.  Bill Pemberton
                <wfp5p@tigger.itc.virginia.edu> provided a test
                system.  The modification affected sources for
                every dialect, whether it supports IPv6 or not, by
                changing the interfaces to the common Internet
                address function ent_inaddr().

                Added support for the NetBSD UVM virtual memory
                system.  Paul Kranenburg <pk@cs.few.eur.nl> supplied
                technical details.

                Bracketed HP-UX 11 use of <sys/spinlock.h> with
                #if/#endif _KERNEL.

                Corrected printing of PCB address in DEVICE column
                for IRIX.

4.34            June 26, 1998
                Updated 00FAQ to discuss TCP and UDP ports private
                to the AIX kernel and 00README to describe how ACLs
                can be used to give lsof permission to read the
                kernel memory devices.  Add information to 00FAQ
                and 00README about other OpenBSD architectures
                where lsof is reported to compile and run.  Added
                section to 00FAQ discussing how an incorrect loader
                path environment variable value can prevent lsof
                from loading correctly.

                Improved Solaris namefs and doorfs support so that
                it is now possible to search for an open VDOOR file
                by the path name of its fattached file system
                object.  Igor Schein <igor@txc.com> requested the
                ability to do such a search.  Even with the change,
                lsof can't always identify path names for open
                VDOOR files.

                Also at Igor's request, improved reporting of
                information on open Solaris VCHR files that share
                a common vnode, and Solaris UNIX domain socket
                files.

                Corrected print_kptr() argument error in PTX dnode.c,
                reported by Mark Price <mprice@sequent.com>.
                Compensated for ncache element naming differences,
                introduced at PTX 4.4.2; Kurtis D. Rader
                <krader@sequent.com> reported the problem.

                Changed output column title from INODE to NODE to
                better reflect the column's contents of node IDs
                for more than just inodes.

                Improved Configuration and processing for Solaris
                AFS.  Corrected AIX AFS 3.4 afs_rwlock_t simulation.

                Corrected a cast problem with two AIX knlist()
                calls, thus quieting an AIX 4.2.1 compiler argument
                type warning.  Jon Champlin <champlin@us.ibm.com>
                reported the problem.

                Added support to most dialect versions (exception:
                /proc-based Linux) to warn when the identity of
                the kernel where lsof was compiled doesn't match
                the running identity.  The warning can be suppressed
                with -w.  Note: determining AIX state requires
                calling oslevel, a potentially slow operation.
                Jon Champlin <champlin@us.ibm.com> suggested this
                addition.

        !!!! WARNING !!!!    !!!! WARNING !!!!    !!!! WARNING !!!!

                Those using the lsof cross-configuration capability
                (see 00XCONFIG), should be aware that the kernel
                identity test feature introduces two new basic
                cross configuration environment variables, LSOF_ARCH
                and LSOF_VSTR.

        !!!! WARNING !!!!    !!!! WARNING !!!!    !!!! WARNING !!!!

                Identified a situation where a Solaris UNIX domain
                socket name is known and can be searched for by
                name; added the necessary code.

4.35            July 17, 1998
                Made the kernel identity check an option with the
                HASKERNIDCK #define in machine.h.  Enabled altering
                of HASKERNIDCK with the Customize script.  Added
                a clause to the help output that indicates the
                build-time HASKERNIDCK status.

                Added more information to the NAME column for
                Solaris UNIX domain sockets.  Made them searchable
                by their clone device path name.  Igor Schein
                <igor@txc.com> requested this.

                Completed the HP-UX 11 port with support for its
                optional 64 bit kernel.  Rich Rauenzahn
                <rrauenza@cup.hp.com> provided a test system.
                Corrected errors with HP-UX 11 lock reporting and
                private kernel structure and type definitions.
                Added support for HP-UX NFS3 files.

                Limited mount table warnings -- e.g., when -b is
                used -- to one set per mount point.

                Fixed some mount table scanning and usage bugs,
                including one in Solaris, reported by Kjetil Torgrim
                Homme <kjetilho@ifi.uio.no>.

4.36            August 4, 1998
                Made corrections and additions to IPv6 support and
                to AF_ROUTE socket handling, supplied by Jean-Luc
                Richier <Jean-Luc.Richier@imag.fr>.  Jean-Luc's
                additions provide IPv6 support for the Inria IPv6
                implementations on FreeBSD and NetBSD.

                Fixed two Solaris 2.5, 2.5.1, 2.6 and 2.7 TCP and
                UDP host name or IP address reporting bugs, reported
                by James Mathiesen <James-Mathiesen@deshaw.com>.
                This fix was offered as a patch to 4.35.

                Updated the Customize script to cause ENTER to use
                all defaults.  Amir J. Katz <amir@ndsoft.com>
                suggested this and helped test the changes.

                Updated Solaris ICMP and IP stream handling, based
                on a report from Igor Schein <igor@txc.com>.

                Fixed a bug in the Digital UNIX mount table handling,
                reported by Bob Ward <bward@thehartford.com>.
                While working on the bug, found and updated some
                obsolete AdvFS code.  This fix was offered as a
                patch to 4.35.

4.37            September 15, 1998
                Deactivated SGI IRIX support and archived revision
                4.36 sources and binaries in pub/tools/unix/lsof/OLD.

                Improved performance of FD searching.  This was
                offered as a patch to 4.36.

                Amir J. Katz <amir@ndsoft.com> pointed out that
                ranlib isn't needed for AIX or Solaris.  Made
                appropriate Configure script changes.

                Fixed a file offset reporting bug for HP-UX VCHR
                and VBLK device nodes located on a VxFS root.  Doug
                Siebert <douglas-siebert@iowa.edu> reported the
                bug.  The fix was offered as a patch to 4.36.

                Resolved an HP-UX root device name reporting bug,
                partly caused by an out-dated local copy of the
                <sys/mount.h> mount structure, by generating a
                local header file with the structure that can be
                compiled without needing _KERNEL defined.  Doug
                Siebert also reported this bug.

                Changed some dialect source code -- Digital UNIX,
                Solaris, SunOS, and UnixWare -- to make more
                consistent with ps the user ID lsof reports in the
                USER column.  Added a 00FAQ entry about it.  Igor
                Schein <igor@txc.com> reported the Solaris and
                SunOS lsof inconsistencies with what ps(1) reports.

                Ported lsof to Pyramid ReliantUNIX 5.44.

                Added brackets as comments to case, do, done, else,
                endif, esac, if, and while statements in Configure
                to assist in navigating its clauses.

                Added more Linux 2.0.x glibc work-arounds.

                Added support for UnixWare 7.0.1.

                Ralph Forsythe <ralph@contact-paging.com> provided
                a new FreeBSD test system.

4.38            November 25, 1998
                Added support for recent FreeBSD 3.0 distributions.
                A 3.0 test system was provided by David O'Brien
                <obrien@NUXI.com>.  This was offered as a patch
                to 4.37.

                Updated the scripts/idrlogin.perl* files to look
                for sshd processes in addition to rlogind and
                telnetd ones.

                Added support for DU 5.0 Beta.  Berkley Shands
                <berkley@cs.wustl.edu> provided a test system.

                Added support for OpenBSD 2.4 with changes supplied
                by Kenneth Stailey <kstailey@disclosure.com>.

                Changed the Solaris 2.7 tests and documentation to
                Solaris 7.

                Made some changes to the header files for NEXTSTEP
                3.3 and added support for OPENSTEP 4.x with help
                from Michael A. Hovan III <mhovan@BLaCKSMITH.com>
                and Carl Lindberg <Carl_Lindberg@BLaCKSMITH.com>.
                The combined dialect subdirectory is named n+os.
                One of Carl's changes propagates RC_CFLAGS to the
                library Makefile.  Timothy J. Luoma <luomat@peak.org>
                helped test under NEXTSTEP 3.3 and OPENSTEP 4.2.

                Made UW 7.x version sensitive to the presence of
                ptf7038.  Added peer PCB address to Unix domain
                socket Name column, even when a path name has been
                located.  Information for these changes was supplied
                by Francis Le Bourse <flebourse@intelcom.fr>.  Lee
                Penn <lee@dlpco.com> provided a test system.

                Tested lsof under OSR 5.0.5 on a test system also
                provided by Lee Penn.

                Made path name argument processing more tolerant
                of errors per a suggestion from Julian Gordon
                <julian@cadence.com>.

                Acquired a new UnixWare 2.x test system, generously
                provided by Computer Classroom, Inc. -- Matthew
                Thurmaier <matt@compclass.com>, Ken Laing
                <ken@compclass.com>, and Andrew Merril
                <andrew@compclass.com>. Updated Configure to accept
                a UnixWare version of 2.1.3.

                Updated kmem-based lsof for Linux 2.0.36.

                Updated NetBSD sources for a change in a UVM virtual
                mapping header file.

                Corrected a cache allocation bug in Sun format
                kernel name cache handling.  The bug only shows up
                when the kernel name cache is inaccessible.

4.39            December 29, 1998
                Corrected problems with large device number handling
                for 64 bit Solaris 7.  The problems were reported
                by Steve Bellenot <bellenot@math.fsu.edu>.  Steve
                helped test the fixes.  The fixes were offered as
                two patches to lsof 4.38.

                Improved FreeBSD Configure operations for header
                files that must be obtained from the kernel source
                tree, based on a suggestion from David O'Brien
                <obrien@NUXI.com>.

                For Bela Lubkin <filbo@deepthought.armory.com> made
                optional with +f[cfn] the display of file structure
                address, shared use count, and node structure
                address.  /proc-based Linux doesn't implement this
                feature, because it doesn't read kernel structures
                from kernel memory.  Modified the PTX -X option to
                take advantage of the new file structure display
                option.  Added shared.perl5 to the scripts/
                subdirectory to provide an example of how +f[fn]
                might be used to track shared file descriptors and
                files.

                Added more /dev/kmem-based Linux glibc evasions,
                provided by Jeff Johnson <jbj@redhat.com> and Maciej
                Lesniewski <nimir@kis.p.lodz.pl>.  Jeff helped test
                them on various Linux architectures.

                Tested on AIX 4.3.2; no changes were required.
                Doug Crabill <dgc@purdue.edu> provided a test
                system.

                Fixed -c option to detect missing command name when
                following option begins with `+'.

4.40            January 25, 1999
                Added support for using the CDS compiler for Reliant
                Unix 5.44 and above.  Made Reliant Unix MIPC support
                optional, dependent on the presence of <sys/mipc.h>.

                Based on a report from Michael Schmitz <MSchmitz@lbl.gov>
                that /dev/kmem-based lsof misbehaves on a Linux
                2.0.x m68k kernel without module support, made the
                absence of query_module() or get_kernel_syms()
                Linux kernel support a fatal error.  Updated relevant
                sections of 00FAQ to reflect the change.

                Added the ability to force the Linux Configure
                stanza to use the /proc or /dev/kmem source base
                via a LINUX_BASE environment variable specification.
                This is a cross-configuration assist.

                Added "+D <dir>" and "+d <dir>" options for directory
                searching.  +D searches the entire tree, starting
                at <dir>, including <dir>, its contents, and its
                subdirectory branches; +d searches only <dir> and
                its contents, but not its subdirectory branches.
                Improved lsof's searching of the specified name
                list to compensate for anticipated long lists from
                +d and +D.

                Made an egrep in the Solaris Configure stanza usable
                by the standard and XPG4 egrep's.  Kenneth Stailey
                <kstailey@disclosure.com> pointed out the improvement.

                Fixed bugs in /dev/kmem-based Linux and UnixWare
                Unix domain socket name searching.

                Changed a Linux Alpha #include to be conditional
                on the presence of its named header file, so that
                lsof will compile on Red Hat 5.1 and 5.2 (Linux
                kernel 2.0.35) where the header file is absent.
                The problem was reported by Alexandre Oliva
                <oliva@dcc.unicamp.br>.

                Fixed an AIX 4.3+ bug in procinfo struct space
                allocation, reported by Jeff Stewart <jws@purdue.edu>.
                This was offered as a patch to 4.39.

                Added an lstatsafely() function to offer the same
                isolation for lstat() calls that statsafely() offers
                for stat() calls.  This made DOSTAT_FUNCTION no
                longer necessary, so deleted it.

                With help from Laurent P. Montaron <lpm@sequent.com>
                ported lsof to PTX 4.4.4.  Laurent did a monumental
                job of identifying TCP/IP changes by their TCP
                version, rather than by their PTX (With mix 'n
                match PTX and TCP/IP versions, the PTX version
                often has no bearing on the TCP/IP version.), and
                changed the Configure script and pre-processor
                #if/#else/#endif blocks to match.  He also updated
                Unix domain socket handling for PTX TCP/IP versions
                4.5 and above.

                Updated CLIENT handle acquisition of fill_portmap()
                in print.c to use the more modern RPC function
                clnt_create() in place of clnttcp_create() where
                possible.  PTX 4.4.4 requires clnt_create().

4.41            February 27, 1999
                Added FreeBSD 3.1 and and 4.0 support with help
                from Sheldon Hearn <axl@iafrica.com>, David O'Brien
                <obrien@NUXI.com>, and John Polstra <jdp@polstra.com>.

                Corrected bungled AIX 4.3+ patch that went into
                lsof 4.40.

                Reorganized the Configure script to improve Makefile
                construction.  A specific impetus for this was to
                allow FreeBSD system-wide make flags to be propagated
                to the lsof Makefiles, but other goals were to make
                sure that the DEBUG= make entry can over-ride
                standard CFLAGS values, and to better manage the
                identification of compilers and their versions.
                Two compiler-related values may now be supplied in
                environment variables: 1) the compiler path in
                LSOF_CC; and 2) the compiler version in LSOF_CCV.
                00XCONFIG documents them.

                Added support for Pyramid Reliant Unix bsdsfs,
                msockfs, and sockfs file systems.

                Added an optional LSOF_CINFO string to Configure,
                producing a CINFO string in selected Makefiles,
                producing a #define LSOF_CINFO in selected version.h
                header files.  The purpose of this is to allow
                Configure the option to propagate information to
                the lsof -v output.  It is now used for Linux to
                identify the code base, and for HP-UX 10.30 and
                11.0 and Solaris 7 to identify the kernel bit size.

                Added system information to NEXTSTEP and OPENSTEP
                -v output, from the second line of hostinfo's
                output.

                Fixed a login name buffer overflow problem in the
                processing of -u option values.  This was offered
                as a patch to 4.40.  !!!THIS IS A SERIOUS STACK
                OVERFLOW BUG; A LINUX EXPLOIT EXISTS FOR IT THAT
                OPENS A BASH SHELL WITH LSOF'S AUTHORITY -- E.G,
                SETGID(KMEM) POWER!!!

                Improved the Solaris mount table filter so the
                volume manager's fake mount point, "/vol", is
                ignored and doesn't supplant "/" in NAME column
                path assemblies.  Igor Schein <igor@txc.com> reported
                this bug and provided important help in finding
                it.  This was offered as a patch to 4.40.

                Changed the Linux /dev/kmem-based lock ownership
                test to answer a problem reported by Tom Christiansen
                <tchrist@jhereg.perl.com>.  This was offered as a
                patch to 4.40.

                Installed an HP-UX 11 patch, suggested by Kevin
                Vajk <kvajk@cup.hp.com>, that adjusts a private
                lsof kernel header file, derived via Q4, to correspond
                to an HP-UX patch bundle.

                Made NetBSD 1.3I sockproto structure adjustment.

4.42            March 30, 1999
                Fixed a typo in the HP-UX dfile.c that caused +fF
                and +fN output controls to swap effect.

                Enabled for OpenBSD 2.5 per notice from Kenneth
                Stailey <kstailey@kstailey.tzo.com>

                Made more VM accommodations for FreeBSD 4.0.

                Improved file system search reporting to include
                path name components when they're available, instead
                of mindlessly reporting the file system name in
                the NAME column.  Guy Dallaire <gdallair@geocities.com>
                brought the need for this change to my attention.

                Updated Solaris 2.6 VxFS for Veritas Oracle Database
                Edition 2.0, VxFS version 3.3, and VxVm version
                2.5.4, based on a report from Chris Kordish
                <chris.kordish@East.Sun.COM>.  Chris kindly provided
                a test system.

                Improved HP-UX ipc_s patch detection in Configure,
                response in .../dialects/hpux/hpux11/ipc_s.h, and
                documentation in 00FAQ, Kevin Vajk <kvajk@cup.hp.com>
                helped test.

                Added to Customize the option to suppress HASKERNIDCK
                selection for specified dialects.  Suppressed it
                for /proc-based Linux lsof, and removed its test
                and code from there.  Tin Le <tin@netimages.com>
                alerted me to the need for this update.

                Ported to official Digital UNIX 5.0 release.

                Changed DU lsof to use the knlist(3) function when
                no kernel file has been specified with -k.  This
                change was suggested by Erich Wimmer
                <Erich.Wimmer@digital.com>.

                Updated Configure for latest NetBSD (1.3I?) with
                UVM support the default.

4.43            May 11, 1999
                Corrected a typo in the Solaris gcc discussion in
                00FAQ.  Made changes to the Solaris 2.5[.1] private
                tcp_s structure.  Both changes were done in response
                to reports from Igor Schein <igor@txc.com>, who
                tested the Solaris 2.5 change.

                Made more IPv6 adjustments to lsof for Tru64 UNIX
                (Digital UNIX) 5.0, based on information obtained
                from Compaq by Berkley Shands <berkley@cs.wustl.edu>.

                Corrected HP-UX error message about HP-UX 11 q4 usage.
                Amir Katz <amir@ndsoft.com> reported the correction.

                Fixed a GlibC 2.1 conflict in /proc-based Linux lsof.

                Fixed a man page typo reported by Vlad Harchev
                <hvv@hippo.ru>.

                Changed some Solaris 2.7 references to Solaris 7
                in Configure and 00XPORTING.

                Added a Solaris example to the echo statements that
                are the install rule in the SunOS/Solaris Makefile.

                Added a field to the file structure output --
                FILE-FLAG (file structure open flags, f_flag[s],
                and process file flags, typically u_pofile)) --
                enabled with +f[gG].  Its field output character
                is 'G'.

                Figured out another piece of the HP-UX 11 patched
                ipc_s structure puzzle with the help of Keith Kalet
                <KEITH_KALET@HP-USA-om41.om.hp.com>.

                Fixed a PTX real vnode to real inode interpretation
                bug.

                Added link count to lsof output.  Eric Dumazet
                <dumazet@risgw.ris.fr> requested and helped test
                it.  The new +L option enables and filters it.
                Its field output character is `k'.

                Updated Configure script to recognize NetBSD 1.4.

                Updated AFSConfig to handle default answers to
                questions.

                Incorporated patch from Jonathan Sergent <sergent@io.com>
                that enables /proc-based Linux lsof to run on both
                32 and 64 bit kernels.

                Updated Configure script with a patch from David
                O'Brien <obrien@NUXI.com> that recognizes FreeBSD 3.2.

4.44            June 24, 1999
                Corrected use of nlink member of hsnode for SunOS
                4.1.x High Sierra File System files.  John Dzubera
                <zube@tlaloc.stat.colostate.edu> reported the
                problem and helped test the fix.  Also fixed a
                SunOS segmentation fault bug.  These fixes were
                offered as a patch to 4.43.

                Improved handling of /proc-based Linux UNIX PCB
                address.

                Fixed a NEXTSTEP and OPENSTEP bug that made repeat
                option (-r) processing malfunction.  This fix was
                offered as a patch to 4.43.

                Fixed Configure so it doesn't use -O in the Cflags
                for the bundled HP-UX C compiler.  Jim Ankenbrandt
                <jankenbrandt@penton.com> reported the problem.

                Corrected output ordering of parent PID and process
                group ID when both -R and -g are specified.

                Enhanced the pdev.c and pdvn.c library modules for
                wider use.  These dialect versions use the new
                library modules: DEC OSF/1, Digital UNIX, and Tru64
                UNIX; Pyramid DC/OSx and Reliant UNIX; SCO OSR and
                UnixWare; and Sequent PTX.

                Added basic clone device support to /dev/kmem-based
                HP-UX lsof for HP-UX 10.30 and higher.

                Added raw socket support to /proc-based Linux lsof.

                Changed NODE-ADDR column title to NODE-ID in
                anticipation of using more general identification
                information in the column.

                Ported to UnixWare 7.1, using a test system kindly
                provided by Matt Thurmaier <matt@compclass.com>
                and Don Draper <dond@sco.com>.

                Updated for NetBSD 1.4C VM changes, and a new
                current and root working directory structure.

                Made minor adjustment for latest Tru64 UNIX 5.0
                Beta release.

4.45            July 30, 1999
                Fixed quoting problem in DEC OSF/1, Digital Unix,
                and Tru64 UNIX Makefile's install rule.  The problem
                was reported by Berkley Shands <berkley@cs.wustl.edu>.
                Fixed bug in Tru64 UNIX 4 lsof that caused FDs to
                be skipped.  These fixes were offered in a patch
                to 4.44.

                Fixed a repeat-mode /proc-based Linux lsof bug,
                reported by Sami Farin <sfarin@ratol.fi>.  This
                was offered as a patch to 4.44.

                Picked lint, some reported by Sami Farin.

                Corrected a 00DCACHE documentation error in a sample
                shell script.  The problem was reported by Chad R.
                Larson <chad@larsons.org>.  Changed commented-out
                entries in machine.h files so they require more
                thought and work when the comments are removed,
                based on a remark by Chad.

                Compensated for the practice of Solaris 7 and above
                to record the dev= value in /etc/mnttab in 32 bit
                mode, even on 64 bit systems.  This was offered as
                a patch to 4.44.

                Added a C library test for /proc-based Linux lsof,
                so that the #include files can be adjusted for a
                non-GlibC environment.  The need for this was
                reported by Andrew Hill <andrewh@tirin.openworld.co.uk>.
                This was offered as a patch to 4.44.

                Added support for Auspex LFS 1.8.1 and 1.9.2 to
                SunOS 4.1.4 lsof.  The support was requested by
                Quentin Fennessy <quentin@dvorak.amd.com>, who
                provided information and did testing.

                Enabled IPv6 support code for NetBSD and OpenBSD,
                conditional on Configure script tests.  Wolfgang
                Rupprecht <wolfgang@wsrcc.com> supplied the NetBSD
                code and tested it.  The OpenBSD code I constructed
                has been compiled but not tested.

                Updated the identd Perl 5 script, based on a report
                from Wendy Lin <af5@taiyang.cc.purdue.edu> that
                the space in its response line in front of the user
                name violates RFC 1413.

                Added IPv6 support to /proc-based Linux lsof.
                Jonathan Sergent <sergent@ETLA.NET> and Andrew
                Thomas Sydelko <sydelko@ecn.purdue.edu> kindly
                provided a test system.

                Updated man page description of AIX multiplexed
                files to indicate that they might be /dev/ptc or
                /dev/pts, depending on the AIX version.  The
                correction was suggested by Onno van der Linden
                <onno@simplex.nl>.

                Sylvain Robitaille <syl@alcor.concordia.ca> reports
                lsof passes his Y2K tests.

4.46            October 23, 1999
                Corrected /proc-based Linux lsof to detect that an
                IPv6 address is a mapped IPv4 address.  The problem
                was reported and analyzed by Arkadiusz Miskiewicz
                <misiek@misiek.eu.org>, who also tested the fix.

                Added a libc5 library /dev/kmem-based Linux lsof
                circumvention, supplied by Jason Lingohr
                <lingman@lucid.net.au>.

                Corrected a bug in -t (terse) AIX output, reported
                by Wendy Lin <af5@taiyang.cc.purdue.edu>.  I
                introduced the bug at revision 4.43 when adding
                FILE_FLAG reporting.  This was offered as a patch
                to 4.45.

                Added a work-around for a problem in the OpenBSD
                2.3 <sys/pipe.h> header file.  Volker Borchert
                <bt@teknon.de> provided and tested it.

                Improved description of cross-building lsof for a
                64 bit Solaris 7 system on a 32 bit system with
                suggestions from Phillip Edwards
                <Philip.Edwards@sn.wpafb.af.mil>.

                Fixed a gawk POSIX-mode pattern error in the Linux
                /dev/kmem-based Mksrc script, based on a tip from
                Ambrose C. Li <acli@mingpaoxpress.com>.

                Fixed a bug in the Tru64 UNIX IPv6 handling, courtesy
                of a report from Casper Dik <casper@holland.sun.com>.

                Enabled support for OpenBSD 2.6.

                Enabled support for BSDI BSD/OS 4.1, based on a
                report from Jeffrey C Honig <jch@bsdi.com> that
                only a Configure script change is necessary.

                Enabled Configure script to use gcc for building
                lsof for a 64 bit Solaris 7 and 8 kernels, if the
                gcc version is 2.95 or above.

                Improved -i option handling for systems with IPv6
                support so that it will search for a host name in
                both IPv4 and IPv6 families, when that is possible.
                As a companion modification, changed -V processing
                to report a single error when a multiple host name
                match is requested.  Casper Dik <casper@holland.Sun.COM>
                helped test.

                Fixed a DEC OSF/1, Digital UNIX, Tru64 UNIX repeat
                mode bug, reported by Mayer Ilovitz <mayer@cooper.edu>.
                Mayer helped test the fix.  The fix was offered as a
                patch to 4.45.

                Changed Solaris socket file recognition scheme, so it
                is (nearly) the same through Solaris 8, where the
                previous clone device scheme no longer works.

                With significant assistance from Casper Dik, added
                support for Solaris 8 Beta and Beta refresh.  The
                IPv6 support in Solaris 8 is still in some flux,
                so there are temporary compensations for the
                differences between Beta IPv6 support and Beta
                refresh IPv6 support.  Casper and I hope those
                differences disappear by FCS.

                Improved the delivery of information on Solaris
                2.5.1, 2.6, 7, and 8 door files.

                Fixed a repeat mode bug that surfaces when /etc/passwd
                changes between cycles.  The bug report and diagnostic
                help were supplied by Igor Schein <igor@txc.com>.
                The fix was offered as a patch to 4.45.

                Added support for INRIA IPv6 to NetBSD.  Jean-Luc
                Richier <Jean-Luc.Richier@imag.fr> provided patches
                and a test system on which to verify them.

                Added support for AIX 4.3.3.  Jeff W. Stewart
                <jws@anaconda.cc.purdue.edu> provided a test system.

                Made adjustments for FreeBSD 4.0-current.

                Improved reporting of information for AIX sockets that
                lack protocol control blocks.

4.47            November 29, 1999
                Based on a query from Jean-Pierre Radley <jpr@jpr.com>,
                changed the lsof top-level Makefile to propagate
                CFGF to the library Makefile.  (DEBUG was already
                being propagated.)  Added osrgcc and scogcc Configure
                abbreviations (to use gcc) for Jean-Pierre.

                In response to a query from Igor Schein <igor@txc.com>,
                improved the Configure script test for Solaris 7
                and 8 that decides if the compiler can produce 64
                bit executables.

                Made an ugly hack, based on making a private rnode
                structure definition from q4 output, to compensate
                for HP-UX 10.20 and lower recent NFS3 patches.  HP
                didn't supply an updated <nfs/rnode.h> with the
                patches.  The problem was reported by Will Partain
                <partain@mekb2.sps.mot.com>.  Elias Halldor Agustsson
                <elias@hi.is> helped identify the patches as
                PHNE_18173, PHNE_19426, PHNE_19937, and PHNE_20091,
                and provided a test system.

                Switched BSDI test system from 2.1 and 3.1 to 4.0.1,
                courtesy of Terry Kennedy <terry@tmk.com>.

                Added some more dev_t hacks for Alpha FreeBSD 4.0.

                Added support for IPv6 on BSD 4.x.  The support hasn't
                yet been tested, just compiled.

                Added support for the mnt file system (mntfs or
                /etc/mnttab) on Solaris 8.  Tested on Solaris 8
                BETA-Refresh.

                Made selection of optional fields (e.g., PPID with
                -FR) in a field output specification select the
                optional field, too, so that the option selector
                for the field (e.g., -R) isn't also required.  This
                change was made in response to an inquiry from John
                DuBois <spcecdt@armory.com>.  This may require some
                revision to scripts that parse all field output;
                two scripts in the lsof distribution's scripts/
                subdirectory had to be updated.

                Corrected handling of Linux IPv4 addresses mapped
                in IPv6 addresses.

                Tested under OpenBSD 2.6.

4.48            January 14, 2000
                Modified -i argument processing of colon-separated
                IPv6 addresses to recognize an IPv4 address mapped
                in an IPv6 address and handle it as an IPv4 address.
                This was offered as a patch to 4.47.

                Added a defined symbol (NOWARNBLKDEV) to control
                (inhibit) the issuance of a warning when no block
                devices are found.  This was done anticipating its
                need in FreeBSD 4.x, but that dialect version no
                longer has any block devices, so HASBLKDEV was
                disabled for it instead.  NOWARNBLKDEV was left in
                place for possible use in the future.

                Enabled KAME IPv6 Configure support for FreeBSD
                when <netinet6/in6.h> is found.

                Disabled use of gcc to compile lsof for 64 bit
                HP-UX 11.

                Updated Configure to recognized FreeBSD 3.4.

                Based on suggestions from Bernt Christandl
                <beb@MPA-Garching.MPG.DE> improved AFS configuration
                for AIX and Solaris, and updated AIX AFS 3.5 support.
                Johannes Tax <tax@bluedog.oit.unc.edu>, Hung T.
                Pham <hung_pham@unc.edu>, and Curt Freeland
                <curt@grumpy.cse.nd.edu> provided test systems.

                Updated lsof's private rnode definition for AIX
                4.3.3, since IBM still doesn't ship the
                <oncplus/nfs/rnode.h> header file and the rnode
                structure definition in <nfs/rnode.h> doesn't match
                what the kernel uses.  This was offered as a patch
                to 4.47.

                Weakened the test in the Linux /proc-based lsof of
                the field count of data lines in /proc/net/{tcp,udp}.
                It appears that recent 2.3.x Linux kernels have
                added untitled fields to these files.  The bug
                report came from Gabor Liptak <gaborliptak@usa.net>.

                Adjusted for a FreeBSD 4.0 change in the definition
                of [_]KERNEL.  David O'Brien <obrien@NUXI.com> reported
                the problem and provided a test system.

                Removed the HASPPID bracket from Fppid (the -R
                option state variable) so that the field select
                table will compile even when HASPPID is not defined.
                This problem was introduced at revision 4.47 with
                code that causes some field output characters to
                set option states.  The problem was reported by
                David Bacon <bacon@birch.eecs.lehigh.edu>.

4.49            April 3, 2000
                Made clearer in man page that "Lxx" FDs are AIX
                loader table references.  Also updated the 00FAQ
                discussion of the Stale Segment ID bug to include
                AIX 4.3.x.

                Modified support for NetBSD 1.4Q to include the
                <sys/buf.h> header file to cope with an MFS change.

                Added support for OpenBSD UVM virtual memory.

                Added support for AIX systems with > 2GB of memory.
                Chris Sylvain <csylvain@itg.ummc.umaryland.edu>
                reported the problem and provided the solution.
                Chris also supplied some minor code cleanup.  This
                was offered as a patch to 4.48.

                Based on new information from Igor Schein <igor@txc.com>
                made additional compensation in Configure script
                for 64 bit Solaris 7 and 8 gcc.

                Added some 00FAQ info on the effect ordering of
                the +fg and -FG options has on output format.

                Improved NetBSD IPv6 configuration, based on a
                suggestion from Thomas Klausner
                <wiz@danbala.ifoer.tuwien.ac.at>.  Added code to
                convert IPv4-mapped-in-IPv6 addresses to IPv4
                addresses.

                Updated the information in 00FAQ and the HP-UX 11
                binary directory README files on the HP-UX 11 ipis_s
                patch with new information supplied by Eric McWhorter
                <emcwhorter@xsis.xerox.com>.

                Added documentation on changes to HASFSTYPE and
                HASNCACHE, and the new HASPRIVPRIPP.

                Adjusted Configure for FreeBSD 5.0.  Made additional,
                necessary changes to Configure and the BSDI sources
                to eliminate load errors.

                Added KAME IPv6 support to FreeBSD at the request
                of Ollivier Robert <roberto@eurocontrol.fr>, who
                provided a test system.

                Corrected the script that generates the CHECKSUMS
                files for binaries to correctly name the detached
                PGP certificate.  The documentation bug was reported
                by Michael Hennecke <hennecke@rz.uni-karlsruhe.de>.

4.50            June 29, 2000
                Added a NetBSD alpha test host, courtesy of Ray
                Phillips <r.phillips@mailbox.uq.edu.au>.  An lsof
                4.49 binary, built on Ray's 1.4.1 system was made
                available prior to the 3.50 release.

                Upgraded the system map file tests in /dev/kmem-based
                Linux lsof, making the use of DEBIAN_LINUX_LSOF
                unnecessary.  Tested the changes on a system made
                available by Vincent Kujala <kujala@geog.ubc.ca>
                and Jim Mintha <jim@ic.uva.nl>.

                Forced AIX to use the large-file-enabled versions
                of lstat (lstat64) and stat (stat64) if <sys/stat.h>
                contains stat64.  This should allow lsof to stat()
                AIX files > 2GB even when the builder has not
                defined the "large file enabled programming
                environment."  Configure tests <sys/stat.h> and
                puts -DHASSTAT64 in the Makefile's CFLAGS to make
                this happen.  Fernando A.B. Whitaker
                <whitaker@cenapad.unicamp.br> reported the problem.
                This was offered as a patch to 4.48.

                Enabled Configure script to handle OpenBSD 2.7.
                Angelos D. Keromytis <angelos@dsl.cis.upenn.edu>
                reported the availability of OpenBSD 2.7 and supplied
                the Configure script patch.

                Improved handling of DOOR and fattach()'d files in
                Solaris.

                Changed message about missing kernel symbol file
                from "not yet determined" to "none found".

                Updated FreeBSD, NetBSD, NEXTSTEP, OpenBSD, and
                OPENSTEP support to report "no PCB" and the values
                of the SO_CANTSENDMORE and SO_CANTRCVMORE state
                flags when a socket structure has no inpcb pointer.
                This modification was made to AIX lsof at revision
                4.46.  Added an entry to 00FAQ about sockets that
                have no inpcb pointer.

                Upgraded support for FreeBSD 5.0-CURRENT.  Ben
                Smithurst <ben@scientia.demon.co.uk> supplied
                patches and did testing.  David O'Brien <obrien@NUXI.com>
                supplied a test system.  The update included dropping
                the Fctty part of file descriptor file system
                support, conditional on a Configure script test.
                I propagated those changes to BSDI, NetBSD, and
                OpenBSD in anticipation of their having the
                modification in the future.  David also arranged
                with Michael Haro <mharo@area51.fremont.ca.us> for
                a FreeBSD 3.4 test system.

                In response to an lsof 3.72 bug report from Jim Mewes
                <jim@corp.phone.com>, added more kernel address
                filtering to the lsof function, kread(), that reads
                Solaris kernel data.

                In response to a report from Marc Duponcheel
                <marc@offline.be>, added tests to the /proc-based
                Linux lsof to ignore file systems of types "autofs"
                and "pipfs".

                Based on a report and information supplied by Casper
                Dik <casper@holland.Sun.COM>, updated the ncache_load()
                function in lib/rnch.c with new code that deals
                with a post Solaris 8 change in kernel name cache
                (DNLC) handling.  Casper tested the update, which
                should be invisible to Solaris versions without
                the new DNLC code.

                Added support for Solaris VxFS QIO files, based on
                a report from Kieran Broadfoot <kieran.broadfoot@gs.com>.
                Kieran help test the support.

                Added support for PTX 4.4.6 and 4.5[.1] with help
                from the usual cast of good people at Sequent.

                Added support for 64 bit file sizes and offsets on
                BSDI, FreeBSD, NetBSD, and OpenBSD, based on a
                report from Dan Nelson <dnelson@emsphone.com>.
                Dan supplied a patch and did FreeBSD testing.

                Added Configure script recognition of NetBSD 1.5,
                based on a report from Andrew Brown <atatat@atatdot.net>.
                Thomas Klausner <wiz@danbala.ifoer.tuwien.ac.at> updated
                the NetBSD port package to use a pre-release of this
                addition.

                At the last minute saw a notice via deja.com's
                UseNet search service that FreeBSD 3.5 had been
                released and lsof didn't grok it.  Added recognition
                of 3.5 to lsof's Configure script, but didn't have
                the opportunity to test lsof on 3.5.

4.51            August 21, 2000
                Added Configure script support for the upcoming
                Solaris 9 release based on suggestions from Casper
                Dik <Casper.Dik@holland.sun.com>.

                Changed sample Perl scripts to assume that
                /usr/local/bin/perl is Perl 5 and Perl 4 may be
                found in /usr/local/bin/perl4.

                Updated Configure to recognize FreeBSD 4.1 and made
                a FreeBSD pre-release distribution available.

                Bela Lubkin <belal@sco.COM> tested lsof on the
                upcoming SCO OSR 5.0.6 release and reports that
                lsof appears to work properly.

                Updated the AIX compiler test in Configure to
                recognize its version 5.

                Updated AIX 4.3.3 support with automatic recognition
                of the proper rnode structure, based on machine
                bit width.  Also added code to detect when processing
                the -X option that lsof has been compiled with the
                "other" AIX 4.3.3 user structure and to apply
                compensations.  When a compensation method works,
                it's applied during subsequent -X processing; when
                none works, further -X processing is disabled.

                Added Tru64 UNIX 5.1 support.  Updated Tru64 UNIX
                library text file support to recognize new kernel
                support for AdvFS library files.  Berkley Shands
                <berkley@cs.wustl.edu> and Klaus Saggerer USG
                [saggerer@zk3.dec.com> helped put me in contact
                with Chang Song <song@zk3.dec.com>, the developer
                of 5.1's new kernel name cache and he helped me
                develop new code in lsof to access it.

                Corrected reporting of PTX fattach()'d address.

                Changed Configure and dlsof.h for NetBSD and OpenBSD
                to use /usr/include/uvm header files when available.
                Andrew Brown <atatat@atatdot.net>, Thomas Klausner
                <wiz@danbala.ifoer.tuwien.ac.at>, and Wolfgang
                Rupprecht <wolfgang@wsrcc.com> pointed out the need
                to do this for NetBSD.  Andrew provided access to
                a NetBSD 1.5 system for verifying the changes.

                Installed snprintf() support, including a private
                version in the lsof library for those UNIX dialects
                without the function.  Changed all sources to use
                it instead of sprintf() and strcpy().

                Fixed a memory leak in the readvfs() functions of
                BSDI, DEC/OSF1, Digital UNIX, FreeBSD, NetBSD,
                OpenBSD, and Tru64 UNIX.

                Tested on Linux 2.4.

                Modified the Pyramid MkKernOpts script to compensate
                for `uname -s` configuration alternatives.  Robert
                Dahlem <Robert.Dahlem@ffm2.siemens.de> supplied
                the modification.

                Obtained access to an FCS Solaris 8 64 bit system
                and built lsof on it, using Sun Workshop C 5.0 and
                gcc 2.96 20000814 (experimental).  Both compilers
                produce a working lsof.


4.52            November 8, 2000
                Completed work on an HP-UX 11.11 port that uses a
                pstat(2) interface provided by HP.  To distinguish
                it from its predecessors for HP-UX, this lsof
                version is called PSTAT-based and the predecessor
                versions are now called /dev/kmem-based.  I am
                indebted to the far-sightedness and support of
                these good people at HP for making PSTAT-based lsof
                possible: Carl Davidson, Louis Huemiller, Rich
                Rauenzahn, and Sailu Yallapragada.  The PSTAT-based
                sources are in lsof_4.52/dialects/hpux/pstat, the
                /dev/kmem-based ones in lsof_4.52/dialects/hpux/kmem.

                Ported to IBM Monterey for Merced|Itanium, aka AIX
                5L.  It configures via the Configure script's "aix"
                abbreviation and has been tested on AIX 5L Beta 3.
                Jay Beck, Steve Dibbell, Loc Le, Nasser Momtaheni,
                and Malcom Zung of IBM provided generous support.
                Since AIX 5L is still in Beta testing, this port
                can't be considered complete.

                Added Configure support for OpenBSD 2.8.  David
                Mazieres <dm@cs.nyu.edu> provided a test system.

                Based on a report from Marc Christensen
                <marc@mecworks.com> added sockfs to the mount scan
                exemption list for /proc-based Linux lsof.

                Added large file, CDFS, and DOSFS for UnixWare 7.x.
                Added UnixWare device memory mapping support.  All
                UnixWare changes were supplied by Eric Dumazet
                <edumazet@cosmosbay.com>  Eric also supplied some
                miscellaneous bug fixes.

                Deferred name cache loading until printname() needs
                to use the name cache.

                Terminated Pyramid, SunOS 4.1.x, and Ultrix support,
                because test systems are no longer available.
                Final Pyramid and Ultrix source code distributions
                for lsof revision 4.51 may be found on lsof.itap.purdue.edu
                in pub/tools/unix/lsof/OLD/src.  The no longer
                supported SunOS 4.1.x source code is still distributed
                with the Solaris source code.

                Added code to set Solaris node address to real vnode
                address, when applicable.

                John Speno <speno@lopan.isc-net.upenn.edu> provided
                information that enabled me to update the Tru64
                AdvFS (MSFS) node definition for AdvFS version 5.

                Added Tru64 5.x CFS support with help from Kris
                Chandrasekhar <Kris.Chandrasekhar@compaq.com>,
                Diane Lebel <lebel@zk3.dec.com>, and John Speno.
                The support only provides information about cached
                file attributes.

                Installed a Configure patch for HP-UX 11 supplied by
                Kenneth Stailey <kstailey@disclosure.com> that adds
                another command to q4 input.

                Tested on FreeBSD 4.2.

                Will Day <willday@rom.oit.gatech.edu> and Frank
                Winkler <frank.winkler@germany.sun.com> graciously
                supplied Solaris 8 binaries.

                Added Solaris 9 text file support, supplied by
                Casper Dik <Casper.Dik@holland.sun.com>.

4.53            December 6, 2000
                Added the AIX 5L j2_lock.h to the distribution with
                a Configure script step to use it when it's missing
                from /usr/include/j2.

                Removed SunOS 4.1.x support.

                Removed Linux 2.0.x /dev/kmem support.

                Fixed VBLK and VCHR special device file reporting
                to handle /dev information more accurately.

                Added a Apple Darwin / Mac OS X 1.2 port, provided
                by Allan Nathanson <ajn@apple.com>.  Allan also
                arranged for a test system so I can maintain this
                port.  An additional test system was provided by
                Dale Talcott.

                Dropped claims of support for all UnixWare versions
                except 7.1.0, since that is the only version on
                which I can test lsof.  Even though lsof 4.53 is
                deprecated for UnixWare 2.1.3, installed a patch
                for it with testing done by A. Channing Clark
                <clark.channing@heb.com>.

                Dropped claims of support for all SCO OpenServer
                versions except 5.0.5, since that is the only
                version on which I can test lsof.

4.54            January 19, 2001
                Added compensation for a change that made the
                FreeBSD mount structure invisible.  I can only test
                back to 3.2 and the compensation works there, so
                it's been #ifdef'd for 3.2 and above.  David O'Brien
                <obrien@FreeBSD.org> provided the necessary clue.

                Based on a report from Valdis Kletnieks
                <Valdis.Kletnieks@vt.edu>, changed all IPv6 support
                to report a TYPE of IPv6 for sockets with IPv4
                addresses mapped in IPv6 addresses.  The previous
                lsof behavior was to report their TYPE as IPv4.

                Restored the Linux GlibC test to Configure, removed
                at revision 4.53, based on a report from John Dzubera
                <zube@cs.colostate.edu>, that RedHat Linux 6.0 still
                needs the test.

                Made setting of link count for Solaris more selective.

                Limited Readlink() recursion to MAXSYMLINKS.  The bug
                was reported by Jan Dvorak <johnydog@go.cz>.

                Dropped the *claim* that lsof runs on Solaris 2.5.1.
                It may well do so, but I no longer have access to a
                test system.

                Fixed an #endif comment typo, reported by Igor Schein.

                Fixed a typo in a cast for a Tru64 UNIX 5.1 function
                and updated Configure for Tru64 UNIX 5.0 and 5.1 with
                information from Jesse Perry <jesse.perry@compaq.com>.

                Corrected non-fatal typos in the AdvFS support in
                dnode.c for Tru64 UNIX.

                Added msdos file system support for NetBSD and OpenBSD.
                Andrew Brown <atatat@atatdot.net> requested and helped
                test it.

4.55            February 15, 2001
                Based on a report from Bernd Eckenfels <ecki@lina.inka.de>
                added support in lsof for files in /proc/<PID>/maps
                that have been deleted.

                Changed PGRP output title to PGID, conforming to
                the most common current abbreviation for Process
                Group ID (PGID).  While some systems continue to
                use *pgrp for internal kernel variable names, most
                systems that support the display of PGID via ps(1)
                now title it PGID.  The lsof -g and -Fg options
                operations are unchanged in function; only titles
                and descriptions have changed.  Also changed internal
                variable names from *PGRP and *pgrp to *PGID and
                *pgid where possible.

                Dropped the *claim* that lsof runs on HP-UX 9.x.
                It may well do so, but I no longer have access to
                a test system.

                In response to a suggestion from Jeff Howie
                <jeff.howie@federated.ca> added support for command
                name selection by regular expression.  A new form
                of the -c option value is use to identify and
                specify a regular expression.

                Restore the *claim* that lsof works on UnixWare
                7.0, since I re-acquired a test system.

4.56            May 3, 2001
                Corrected some problems Amir Katz <Amir_Katz@bmc.com>
                found with Insure++, one in lib/dvch.c, the rest
                in Solaris sources.  Amir's report also helped me
                find an error in an snpf() call that caused (the
                unsupported) Solaris 2.5.1 lsof to crash.  Wally
                Winzer, Jr. <wally.winzer@ChampUSA.COM> helped test.

                Added support for UnixWare 7.1.1 and above in-kernel
                UNIX sockets.  John Hughes <john@Calva.COM> kindly
                provided code and access to a test system.  John
                also provided a test system and advice for adding
                UnixWare 7.1.1 NonStop Cluster and CFS support.
                More help with that effort came from Kurt Gollhardt
                (SCO), Barbara Howe (SCO), Bela Lubkin (SCO), and
                Dewan Rashid <Dewan.Rashid@ir.com>.

                Archived a set of compilation hints (patches) from
                Bill Melvin <Bill.Melvin@esc.edu> that make it
                possible to compile the old, unsupported lsof 3.08
                sources on UnixWare 1.x without NFS or CDFS support.

                Installed support supplied by Allan Nathanson
                <ajn@apple.com> for the Darwin "Gold Master" release,
                Mac OS X 10.0 (aka Darwin 1.3 in its public source
                version).  Added Allan's CVS repository suggestions
                to the script that gets additional header files
                from an open source repository.

                Tested an HP-UX 11.11 kernel patch from Sailu
                Yallapragada that enables reporting of TCP/IP
                information for telnetd processes that use the
                telnet multiplexor.  I don't yet know the kernel
                patch ID.

                Made the Solaris inclusion of <inet/mi.h> conditional
                on the Solaris version.  (It's apparently not needed
                at 2.6 and above.)  Bill Watson <bill.watson@uk.sun.com>
                brought this to my attention.

                Added alternate Linux 2.4.x lock extent test, supplied
                by Jim Mintha <jim@ic.uva.nl>.

                Rearranged the lines and pre-processor tests in
                regex.h, lib/regex.c, and lib/snpf.c so that unifdef
                can be used to eliminate copyright and GPL statements
                when the files aren't being used for a particular
                dialect.  (USE_LIB_* definitions in a dialect's
                machine.h header file determine if one or more of
                those three files are to be used.)

                Added preliminary support for Solaris 8 with VxFS
                3.4.  This support will be refined as I get
                information from Veritas about how they will
                distribute the kernel header files lsof needs.
                Those header files were omitted from the standard
                VxFS 3.4 distribution.  Technical assistance and
                testing were provided by Calle Dybedahl <cdy@algonet.se>,
                Gary Millen <gary.millen@veritas.com>, Rainer Orth
                <ro@TechFak.Uni-Bielefeld.DE>, Peter C. Vernam
                <pvernam@draper.com>, and Donna Yobs
                <Donna.Yobs@veritas.com>

                Tested on FreeBSD 4.3-STABLE.

                Dropped the *claim* that lsof works on UNIX dialects
                where I no longer have test systems: BSDI 2.1,
                3.[01] and 4.0; DEC OSF/1, Digital UNIX and True
                64 UNIX 2.0 and 3.2; FreeBSD 2.1.[67], 2.2[.x],
                3.[012345] and 4.[01]; HP-UX 10.20; NetBSD 1.[234];
                SCO OpenServer 5.0.5; and SCO UnixWare 7.0

                Tested on Solaris 9 BETA, s81_36.

4.57            July 19, 2001
                Help (-h) and version (-v) output now have URLs
                for the newly created and timeliest lsof FAQ
                (00FAQ in the lsof distribution) at:

                  ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/FAQ

                and the man page for the current lsof distribution
                at:

                  ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/lsof_man

                Based on a report from Steve Laubscher
                <slaubs@woodward.com>, modified dlsof.h for PTX
                4.6[.1] to avoid a temporary dnlc_t definition
                needed at PTX 4.5.1.

                Corrected test for old Linux kernels in Configure.
                Henri Karrenbeld <ishtar@cal044202.student.utwente.nl>
                brought the error to my attention.  Limited Linux
                claims to 2.1.72 and above in the documentation.

                Improved HP-UX 11 Configure stanza and stream socket
                handling.

                Constructed a work-around for the HP-UX 11 optional
                OnlineJFS package.  The work-around sadly requires
                lsof to have a private version of the vx_inode
                structure, since the OnlineJFS package doesn't
                update <sys/fs/vx_inode.h>.  Troyan Krastev
                <Troyan.Krastev@ricoh-usa.com> brought the bug to
                my attention and Michael Bracewell
                <michael@ra.TSS.PeachNet.EDU> provided a test system
                where I developed the work-around.

                Added locale support to lsof's isprint() test,
                based on a suggestion from Dan Mercer <damercer@mmm.com>.
                Lsof will use setlocale(), when that function and
                its supporting <locale.h> header file are available.

                Added OpenBSD 2.9 support.

                Based on a report from Aaron Rhodes <arhodes@psionic.com>
                and with testing help from Aaron, made the lsof
                4.56 revision compile and work on OpenBSD 2.6.
                While that OpenBSD version is no longer supported,
                Aaron's report exposed a Configure script bug
                affecting OpenBSD versions lsof does support.

                Updated for FreeBSD 5.0-CURRENT.  Szilveszter Adam
                <sziszi@petra.hos.u-szeged.hu> help test.  The lsof
                FreeBSD ports packager, David O'Brien <obrien@FreeBSD.org>,
                assisted.

                Tested on AIX 5.1.  Loc Le and Nasser Momtaheni of
                IBM provided test systems.

4.58            September 13, 2001
                Added options to safestrprt() and safestrprtn() to
                surround the string with '"' and to suppress the
                printing of an ending '\n'.  Use of these functions
                in device cache file error message reporting answers
                a suggestion for better error reporting from John
                Jackson <jrj@purdue.edu>.

                Fixed a Solaris 2.6 and above problem related to
                searching for "large" (O_LARGEFILE) files by name;
                lsof was using the wrong version of [l]stat(2).
                The bug was reported by Daniel Trinkle
                <trinkle@cs.purdue.edu>.

                Added AIX 4.1.4 and above XTI socket support.

                Added OSR Xenix Shared Data and Semaphore file type
                support with modifications supplied by Bela Lubkin.

                Updated OPENSTEP support with modifications from Carl
                E. Lindberg <lindberg@clindberg.org>.  The changes
                enable the correct reporting of executable and
                library open files ("txt" type).

                Limited claims of OpenServer support to the versions
                where I currently test, 5.0.4 and 5.0.6.  (Lsof
                probably works on 5.0.5.)

                Enabled processing of -C option for PSTAT-based HP-UX
                lsof.

                Enabled and tested on FreeBSD 4.4.

                Corrected a file system test example in 00QUICKSTART,
                based on a report from Jun Biao WANG <wangjunb@cn.ibm.com>.

                Made available for re-distribution a user-contributed
                port of lsof 4.51 to Reliant UNIX 5.45.  Thomas
                Mauterer <Thomas.Mauterer@philosys.de> contributed
                the port.

4.59            October 20, 2001
                With the closing of the Sequent Synergy Links Lab
                by IBM, terminated lsof support for PTX.  The last
                tested PTX lsof revision, 4.58, is available on
                lsof.itap.purdue.edu in .../lsof/OLD/src.

                Adjusted for FreeBSD 5.0-CURRENT NFS header file
                changes, based on a report from Jos Backus
                <josb@cncdsl.com>.

                Corrected a bug in the way Linux lsof identifies
                the owner of a process.  Lionel Cons <lionel.cons@cern.ch>
                reported the problem and tested the fix.  Added
                code to avoid stat(2) calls on regular Linux files
                whenever possible.  Lionel reported the need to do
                this (AFS files) and tested the new code.

                Added new output field for raw device number in
                hex.  The field is identified with 'r'.  This field
                is NOT selected when -F or -F0 is specified so that
                its appearance won't disturb existing scripts that
                process field output.

                Added support for OpenUNIX 8.  A test system was
                provided by Larry Rosenman <ler@lerctr.org>.
                Matthew Thurmaier <matt@compclass.com> and many
                people from Caldera provided technical assistance.

                Added an additional UVM test to the NetBSD Configure
                stanza.  Andrew Brown <atatat@atatdot.net> supplied
                the test; it recognizes NetBSD 1.5Y UVM changes to
                the vnode structure recently committed by Chuck
                Silvers.

                Applied Configure and get-xnu-headers.sh script
                changes suppled by Allan Nathanson <ajn@apple.com>
                for Darwin 1.4.

                Added for Bela Lubkin <belal@mammoth.ca.caldera.com>
                OSR-specific environment variables to supply values
                to the Configure script.  The variables are described
                in 00XCONFIG.

                Added an IP version selector to the -i option
                parameters.

4.60            November 9, 2001
                Added special handling to and corrected bugs in
                the matching of IPv4 in IPv6 addresses to -i6:<...>
                selectors.

                Made 00FAQ corrections and updates, based on
                discussions with Igor Schein <igor@txc.com>.

                Modified Configure script to detect a 64 bit capable
                gcc compiler and permit it to be used to build 64
                bit (PA-RISC 2) lsof for HP-UX 11.00.  Tested with
                HP's gcc package, which Rich Rauenzahn of HP kindly
                installed on a test system at HP.  Stefan Marquardt
                <stefan.marquardt@hagebau.de> helped test.

                Made lsof's method of killing its child process
                more robust, based on a suggestion from Bela Lubkin
                <belal@caldera.com>.

                Modified all dialect Makefile segments to accept
                select -v #define's from the environment -- a
                builder's comment, host, logname, system information
                and user name.  This was done for Bela Lubkin, so
                he can "tune" the -v output when he packages lsof
                in the upcoming Caldera OSR 5.0.7 release.

                Changed Perl scripts in scripts/ to put the lsof
                path consistently in $LSOF.  Also added a fix from
                Bela Lubkin to scripts/big_brother.perl5 that allows
                it to tolerate SCO OSR "ago" clauses in open UDP
                file information.  Strengthened emphasis in
                scripts/00README that the scripts are examples that
                shouldn't be expected to run on all UNIX dialects
                without modification.

                At Bela Lubkin's suggestion changed the device
                cache file format examples in 00DCACHE and 00FAQ
                to avoid "%U%".  That's an SCCS escape sequence.

                Added support for OpenBSD 3.0.

                Added +DAportable to CFLAGS for 32 bit HP-UX 11.
                Amir Katz <Amir_Katz@bmc.com> suggested the addition.

4.61            January 22, 2002
                Updated field output example Perl scripts in the
                scripts/ subdirectory to discover the lsof path,
                starting at .. and proceeding through the PATH
                environment variable's directories.

                Added minor OSR Configure script fixes, provided
                by Bela Lubkin <belal@caldera.com>.

                In response to a report from Joshua Wright
                <Joshua.Wright@jwu.edu> modified NetBSD and OpenBSD
                Configure stanzas and sources so that lsof can be
                built when there is no system source tree (e.g.,
                /usr/src/sys).

                In response to a report from Peter Valchev
                <pvalchev@openbsd.org> improved the UVM test in
                the OpenBSD Configure stanza.

                Updated Configure script to recognize FreeBSD 4.5.
                Updated for FreeBSD 5.0 procfs and pseudofs changes.

                Updated HP-UX stanza to see if the compiler named
                in the LSOF_CC environment variable is the bundled
                compiler.  If it is, "-O" is omitted from the
                compiler flags.

                Updated Digital UNIX 4.x and Tru64 UNIX error message
                related to kernel name list failures.  Added an FAQ
                section about how a kloadsrv daemon failure can cause
                knlist(3) to fail.  The condition was reported by
                Douglas B. Jones <douglas@gpc.peachnet.edu>

                Based on a report from Mark W. Eichin <eichin@thok.org>
                made Linux lsof capable of handling and reporting
                file sizes greater than 32 bits.

                Tested on Solaris 9 BETA-Refresh.

                Corrected a bug in the matching of IPv4 addresses,
                mapped in IPv6 addresses, to an IPv4 parameter to
                an -i option.

                Ported to 64 bit Power AIX 5.1 kernel with advice
                from David Clissold <cliss@austin.ibm.com> and Marc
                Stephenson <marc@austin.ibm.com>, and on a test
                system provided by Loc Le <lple@us.ibm.com>.

4.62            March 7, 2002
                Updated 00README to reflect the usefulness of gcc
                for building AIX lsof.  Documented a report from
                Brian L. Gentry <BGentry@nationsrent.com> of success
                on AIX 4.3.3.  I documented my success on 32 bit
                Power AIX 5.1 and my lack of success on ia64 AIX
                5.1 and 64 bit Power AIX 5.1.

                Improved UnixWare >=7.1.1 reporting of UNIX socket
                NAME field information for NonStop Cluster systems
                with a patch provided by John Hughes <john@Calva.COM>.
                Offered John's improvement as a patch to lsof 4.61.

                Corrected bugs in handling of open files on block
                devices by OSR lsof.  The bugs were reported by
                Bela Lubkin <filbo@deepthought.armory.com>.

                Fixed bug in writing >32 bit device numbers for
                block devices to the device cache file.

                Added support for reporting block special nodes
                not in /dev (or /devices).  That required "like
                device special" be changed to "like block special"
                and "like character special".  (00FAQ was updated.)

                Based on a report from Peter Valchev <pvalchev@openbsd.org>
                improved the definition of the source for NetBSD
                and OpenBSD kernel symbols (the nlist() source
                file).  NetBSD now defaults to getbootfile(3) if
                it is available, /netbsd otherwise.  OpenBSD now
                defaults to /dev/ksyms if it is available, /bsd
                otherwise.

                Made possible compilation under BSD/OS (BSDI) 5.0
                with changes to Configure, dialects/bsdi/dlsof,
                dialects/bsdi/dproc.c and lib/rnmh.c.  The changes
                were suggested by Steven Hinkle <hinkle@bsdi.com>.
                Note that these changes do not substantiate a claim
                that lsof works on BSDI 5.0, because I haven't
                tested it there.

                Updated OpenUNIX private <sys/fs/memfs_mnode.h>,
                based on a report from Larry Rosenman <ler@lerctr.org>
                that it had been updated by Caldera patch OU800PK3.
                Unfortunately the patch only corrects some of the
                problems with the header file, so it is still
                necessary to distribute a private patched version
                of it with the lsof sources.

                Applied a man page correction reported by Frederic
                Delanoy <max_ok@yahoo.com>.

                Corrected cast bugs related to using the HP-UX
                bundled C compiler on HP-UX 11.11.

4.63            April 23, 2002
                Added HPUX_BOOTFILE environment variable for use
                by the Configure script in determining HP-UX kernel
                configuration information -- e.g., the state of
                the ipis_s structure in the HP-UX 11 kernel.  The
                change was suggested by Marc Bejarano <beej@alum.mit.edu>.
                Marc also suggested some changes to the HP-UX
                section in 00FAQ that discusses Configure's use of
                q4 for HP-UX 11.

                Fixed a bug in the Solaris lsof file system matching
                code.  It was not reporting that VCHR files in
                /devices were in / when /devices was in /, too.

                Corrected bugs in device number, file size, file
                offset, and raw device number field output generation.

                Added recognition of OpenBSD 3.1 to the Configure
                script with a suggestion from Peter Valchev
                <pvalchev@sightly.net>.  Note that this change does
                not constitute a claim that lsof works on OpenBSD
                3.1, because I haven't tested it there.

                Built an automated test suite.  (See 00TEST and
                the tests/ sub-directory of the lsof main directory).
                Bela Lubkin requested it.  Dale Talcott, John
                Hughes, and Larry Rosenman helped me validate it
                on their systems.

                During the development of the test suite I discovered
                the following lsof bugs or missing features, and
                corrected or supplied them.

                * Corrected the reporting of locks for:
                  o Digital UNIX 4.0d and Tru64 Unix 5.[01];
                  o HP-UX 10.30 and 11.00;
                  o OpenUNIX 8;
                  o UnixWare 7.1.1.

                * Enabled HP-UX 10.30 and 11.00 to report open NFS
                  file link counts.

                * Corrected the reporting of UNIX domain socket
                  names for Apple Darwin, FreeBSD 4.5 and above,
                  NetBSD 1.4.1 and above, and for OpenBSD 3.0 and
                  above.

                * Enabled HP-UX 11.11 to stat(2) large files.

                * Fixed handling of combination 32 and 64 bit
                  device numbers in AIX 64 bit architectures.

                Updated the AIX 4.3.3 NFS rnode recognition code,
                first installed at revision 4.51.  It looks like
                some IBM update has restored a single rnode structure
                independent of the machine bit width.

                Updated the NetBSD and OpenBSD sources so NetBSD
                can process DTYPE_PIPE files, as OpenBSD was already
                able to do.

                Updated Darwin get-xnu-headers.sh script to reflect
                information about a recent reorganization of the
                Darwin CVS hierarchy, supplied by Allan Nathanson
                <ajn@apple.com>.

                Added defense against the standard I/O descriptor
                attack.

4.64            June 26, 2002
                Corrected some FreeBSD pre-processor directives.
                David O'Brien <obrien@NUXI.com> pointed them out.

                Updated lsof's main() function to: 1) close all
                open file descriptors above 2 before starting; and
                2) to set a non-interfering umask.  Moved GET_MAX_FD
                test from misc.c to proto.h, so that main() could
                use it.  Added multiple-include protection to
                proto.h.

                Moved FAQ's test suite Q's & A's to a more appropriate
                section.  Added a Q&A on HASSECURITY option and
                its affect on searching for open files.  (That was
                already in the man page.)

                Updated hpux/kmem/dnode.c for HP-UX < 11 compilation
                with information from John Dzubera <Zube@CS.ColoState.EDU>.
                While lsof doesn't support HP-UX < 11 any more, I
                try to avoid disabling it there when possible, and
                a locking fix for HP-UX >= 11 in lsof 4.63
                inadvertently disabled compilation of lsof for
                HP-UX < 11.  Fixed long-standing bug in HP-UX 10.20
                lock reporting.

                Removed language from the test suite programs that
                requires an ANSI-C compiler.  This allowed the test
                suite to be validated with cc and gcc on the un-
                supported HP-UX 10.20.

                At the suggestion of Manuel Bouyer <bouyer@antioche.eu.org>
                switched NetBSD and OpenBSD lsof from using nlist()
                to using kvm_nlist().  Made the same change for
                BSDI, Darwin, and FreeBSD.

                Validated test suite on OPENSTEP 4.2.

                In response to a suggestion from Jeff Stoner
                <jstoner@blackboard.com> enhanced support for the
                FD list of the -d option to allow it to be either
                an exclusion or inclusion list, using the '^' prefix
                to denote exclusions.

                Made adjustments for FreeBSD 4.6 and 5.0-CURRENT.
                Fixed a FreeBSD /etc/make.conf CFLAGS extraction
                bug, reported by Kris Kennaway <kris@obsecurity.org>,
                and new a bug in the fix, reported by Eric Cronin
                <ecronin@eecs.umich.edu>

                Added nullfs support for FreeBSD, NetBSD, and OpenBSD
                at the request of Andrew Brown <atatat@atatdot.net>.

                Modified all readmnt() functions to ignore mounted-on
                directory names that don't begin with '/'.

                Tested on NetBSD 1.6A and OpenBSD 3.1.

                Upgraded to Solaris 9 FCS with two changes to the
                BETA-Refresh support: 1) an adjustment to dnode.c
                for a change in the so_so (sonode) structure; and
                2) addition of Solaris 9 FCS specific DNLC code.
                David Comay <David.Comay@Eng.Sun.COM> sent me the
                dnode.c change and Casper Dik <Casper.Dik@sun.com>
                helped with the new DNLC support code.

                Applied OpenUNIX changes that permit lsof to compile
                and run on the upcoming 8.0.1 release.  The changes
                were supplied by Robert Lipe <robertl@caldera.com>.
                Larry Rosenman <ler@lerctr.org> provided a test
                system.

                Added Solaris fd file system support.

4.65            October 10, 2002
                Adjusted for change in FreeBSD 5.0-CURRENT inode
                structure, reported by David O'Brien <obrien@NUXI.com>.
                Adjusted for changes in FreeBSD 5.0-CURRENT <sys/vnode.h>.
                One change was reported by Anders Nordby
                <anders@FreeBSD.org>.  Adjusted for FreeBSD 5.0-CURRENT
                on sparc64 architecture.

                Enhanced the error reporting of Solaris lsof when
                it detects a kvm_open() failure, and added a 00FAQ
                entry on the cause, based on a report from Peter
                J. Bertoncini <pjb@anl.gov>.

                Enabled compiling of lsof for NetBSD 1.5 with the
                NULL file system, using a patch from Andrew Brown
                <atatat@atatdot.net>.

                Removed a hack in the LTbigf test program that was
                once needed when it was compiled on Solaris 9 BETA-
                Refresh with gcc.  The hack isn't needed on Solaris
                9 FCS.  Janet Hempstead <jan@library.carleton.ca>
                brought the need for this change to my attention.

                Applied a patch, supplied by Andrew Brown
                <atatat@atatdot.net>, that updates lsof for NetBSD
                version 1.6F.  Corrected handling of the NetBSD
                nullfs.

                Updated to BSDI BSD/OS 4.3 on a test system kindly
                provided by Terry Kennedy <terry@tmk.com>.

                Updated to FreeBSD 4.7.

                Updated to Apple Darwin 1.5, 5.x and 6.x with
                patches supplied by Allan Nathanson <ajn@apple.com>.
                The patches include IPv6 support.

                Updated Configure to use the -bnolibpath loader
                option when building lsof on a PowerPC, running
                AIX 5 or greater.  Valdis Kletnieks
                <Valdis.Kletnieks@vt.edu> informed me this was
                needed.  Lsof for AIX 5.x was initially developed
                on the IA64, where -bnolibpath can't be used and
                I didn't think to restore it to PowerPC loads when
                AIX 5.x became available for that architecture.

                Updated to UnixWare 7.1.3 on a test system provided
                by Larry Rosenman <ler@lerctr.org>.  Removed claims
                that lsof works on OpenUNIX 8.0.1, because UnixWare
                7.1.3 is the release name of OpenUNIX 8.0.1.

                Based on a comment that his e-mail address was
                wrong in the lsof distribution from Kenneth Stailey
                <kstailey@disclosure.com>, removed all e-mail
                addresses from lsof documentation files except this
                one, 00DIST.  The addresses in 00DIST are used to
                send revision release notices to those who contributed
                to a revision, but the addresses in this file for
                previous revisions and in other documentation files
                sometimes grow stale and are never validated.

4.66            December 22, 2002
                Acquired Solaris 7 and 8 test systems, courtesy of
                John Dzubera <Zube@CS.ColoState.EDU>.  Updated
                00TEST and tests/TestDB accordingly.

                Clarified FreeBSD 5.0 architecture claims at the
                suggestion of David O'Brien <obrien@NUXI.com>.
                Also implemented David's suggestion to change
                Intel to x86.

                Installed changes to DNLC handling in OSR lsof in
                preparation for handling changes in the OSR 5.0.7
                DNLC cache.  Information about the changes and
                patches to handle them were supplied by Bela Lubkin
                <filbo@deepthought.armory.com>.

                Upgraded True 64 UNIX support to the 5.1B release
                on a test system provided by Berkley Shands
                <berkley@cse.wustl.edu>  Had to used relaxed ANSI
                compilation because of an error in a system header
                file and other lsof source usages.

                Implemented the HASNOSOCKSECURITY compile-time
                option.  When it and HASSECURITY are defined, lsof
                will be built to list only the user's open files,
                but will also list anyone else's open socket files,
                provided the "-i" option selects their listing.
                Updated the Customize script to ask about setting
                HASNOSOCKSECURITY.  Left it undefined in all dialect
                machine.h header files.  This change was requested
                by Kenneth Stailey <kstailey@speakeasy.net> for
                use with ntop.

                Added support for OpenBSD 3.2 and its kernel trace
                file.

                Improved lsof help (-h) and version (-v) information
                reporting.

                Fixed a FreeBSD 4.7 and above off-by-two UNIX domain
                socket path termination bug, reported by Ken Stailey
                <kstailey@speakeasy.net>

4.67            March 27, 2003
                Began the transition of the lsof ftp server host
                name from vic.cc.purdue.edu to lsof.itap.purdue.edu.
                That reflects Purdue organizational changes.  This
                first step makes the new name an alias to the old
                one.   The old name, vic.cc.purdue.edu, will remain
                usable for an extended period.

                Corrected a revision number reference in section
                17.17 of 00FAQ on the appearance of Solaris negative
                DNLC caching handing.

                Updated 00FAQ discussion of compilers for 64 bit
                Solaris.

                Validated test suite for 64 bit Solaris 8 and gcc.

                At the request of Alek O. Komarnitsky <alek@komar.org>
                added the "+c <width>" option to enable optional
                changing of the COMMAND column output maximum width
                from the default to <width>.  The default maximum
                width remains CMDL, as defined in lsof.h.

                Fixed three AIX kernel bit size detection bugs,
                one in the AIX Configure script stanza, the second
                and third in the AIX dproc.c get_kernel_access()
                function.  The bugs were reported by Pierre-Yves
                Fontaniere <pyf@cc.in2p3.fr>, who tested the fixes.

                Added kernel event queue file support for FreeBSD,
                NetBSD and OpenBSD.  Andrew Brown <atatat@atatdot.net>
                supplied the code.

                Updated to AIX 5.2 on a test system provided by
                Dale Talcott <dtalcott@purdue.edu>.  Had to build
                work-arounds for two missing AIX 5.2 header files,
                <j2/j2_snapshot> and <proc/proc_public.h>.  Corrected
                an off-by-one UNIX socket addressing bug.  Taught
                AIX lsof to handle both jfs and jfs2 files at the
                same time.  Adjusted for an IBM mistake in the
                sizing of the fdsinfo structure in <procinfo.h>
                Toshiya Nakamura <TOSHIYAN@jp.ibm.com> helped test,

                Updated to FreeBSD 4.8.  Corrected another bug in
                FreeBSD UNIX domain socket name handling.

                Corrected gcc build problems on HP-UX 11i, reported
                by Yuliy Minchev <yuliy@mobiltel.bg>.

                Updated BSDI BSD/OS support to 4.3.1.

                Augmented a lock ID test on NetBSD to check if the
                ID is an LWP pointer.

4.68            June 18, 2003
                Enhanced Configure script's cleanup operations.

                Added support for OpenBSD 3.3, based on a report
                from Peter Valchev <pvalchev@sightly.net>.

                Improved the description of the detached PGP
                signature certificate file in the main lsof README
                file, based on a suggestion from Diana Stockdale
                <diana@mpl.ucsd.edu>.

                Installed a work-around for FreeBSD 5.0-CURRENT on
                Alpha to avoid a compiler register use complaint.

                Corrected a 'c' option error message.  Gnele
                <blaadeleng@yahoo.com> reported the problem.

                Upgraded EXT2FS and UFS support for NetBSD and
                OpenBSD to handle new inode information, and the
                fast UFS1 and UFS2 file systems.
                
                With the help of Andrew Brown <atatat@atatdot.net>
                determined the NetBSD snapshot (1.6F) at which
                <sys/mount.h> could be included under _KERNEL, thus
                eliminating the lsof netexport.h hack.  The same
                change applies to OpenBSD versions 3.3 and above.

                Applied a patch from Armin Gruner <ag@muc.de> that
                corrects the use of the HASPROCFS definition in the
                FreeBSD dialect sources.

                Corrected spelling errors in 00FAQ and in the
                generated 00.README.FIRST_<version> file of the
                distribution archive.  John Jackson <jrj@purdue.edu>
                and Ray Phillips <r.phillips@jkmrc.uq.edu.au>
                spotted and reported the errors.

                Corrected a spelling error in a comment and incorrect
                use of an alarm function in the LTsock test program.

                At the suggestion of Stuart Anderson <sba@srl.caltech.edu>
                added preliminary (and incomplete) SAM-FS file system
                support to Solaris lsof.  Completion awaits availability
                of SAM-FS internals.

                Fixed a Solaris device name printing bug, reported by
                Ric Anderson <ric@tick.Telcom.Arizona.EDU>, only
                visible when HASDCACHE is not defined.  Ric helped
                test the fix.

                Fixed an AIX kernel bit size handling bug related
                to the NFS node (rnode) structure.

                Corrected a print_kptr() function call error in the AIX
                AFS code, reported by David Steiner
                <david.r.steiner@Dartmouth.EDU>.  Upon further reflection
                and because I no longer have appropriate AIX AFS test
                systems, disabled AIX AFS support in the Configure script
                for AIX versions above 4.3.3.0 or AIX AFS versions above 3.5.

                Added support for FreeBSD 5.1.

                With advice from Allan Nathanson <ajn@apple.com> adjusted
                the Darwin get-xnu-headers.sh script to access the kernel
                header files needed by lsof from a new form of the Apple
                open source repository.

                Installed Linux and lsof library bug fixes and
                improvements, supplied by Marian Jancar <mjancar@suse.cz>.
                One Linux improvement handles mount strings that
                have octal escapes in them, eg., \040 for embedded
                blanks.  Marian tested the changes.

4.69            October 16, 2003
                Received and applied an OpenBSD patch from Peter Valchev
                <pvalchev@sightly.net> that replaces a ctob() call with
                a sysconf() call.  Peter claims sysconf() is needed for
                OpenBSD on SPARC.  (It is not needed for NetBSD on SPARC.)

                With the upgrade of my only Solaris 7 test system
                to, Solaris 8, dropped the *claim* that lsof works
                on Solaris 7.  That doesn't mean it won't work
                there, so those who want lsof for Solaris 7 probably
                should be able to build it there and it probably
                will work there.

                Revised lsof's DNLC handling for BSD derivatives,
                including: BSDI; Darwin, DEC OSF/1, Digital UNIX
                and Tru64 UNIX; FreeBSD; NetBSD; and OpenBSD.  The
                latest NetBSD distribution's dropping of the vnode
                capability ID (v_id) required the revision.

                Adjusted to the latest FreeBSD 5.1-CURRENT.

                Added NetBSD support for using kvm_getproc2().

                Added a patch from Andrew Brown <atatat@atatdot.net>
                to handle NetBSD enum conflicts and changes in the
                <miscfs/kernfs/kernfs.h> and <miscfs/procfs/procfs.h>
                header files.

                Added a "#define _KERNEL" to the AIX dnode2.c source
                file for compatibility with a new <j2/j2_inode.h>
                AIX 5.2 header file version.  The addition was
                supplied by Dick Dunbar <Dick.Dunbar@Siebel.com>
                and was offered as a patch to lsof 4.68/

                Added support for a second type of Solaris SAMFS.
                Stuart Anderson <sba@srl.caltech.edu> provided the
                support.  SAMFS support in lsof SOLARIS remains
                scanty, because Sun won't release any details on
                its kernel structures.

                Dropped the *claim* that lsof works on AIX 4.3.3,
                because I was unable to test it there.  That doesn't
                mean it won't work there, so those who want lsof
                for AIX 4.3.3 probably should be able to build it
                there and it probably will work there.

                Updated for Solaris 10 on test systems provided by
                Mike Miscevic <miscevic@hotpop.com>.  Casper Dik
                <casper@holland.sun.com> provided significant help.
                During the Solaris 10 port found and fixed an lofs
                handling bug that prevented reporting of open lofs
                file lock status.

                Updated the DNLC test, LTdnlc, to provide a possible
                explanation about file systems on which the test
                might fail.

                Modified the procedure for obtaining missing Darwin
                XNU kernel header files.  The new one requires more
                manual intervention, but is the best that can be
                done with the way Apple open sources are now
                organized.  00FAQ explains the new procedures for
                those not used to downloading Apple open source
                files.

                Added support for Apple Darwin 7.0 (Mac OS X 10.3)
                with patches supplied by Allan Nathanson <ajn@apple.com>.
                Dropped the *claim* that lsof builds and works on
                Apple Darwin below 6.0.

                Validated lsof on FreeBSD 4.9, using a test system
                provided by Ben Lewis <bl@purdue.edu>.

                Validated lsof on FreeBSD 5.1-CURRENT for Amd64.
                David O'Brien <obrien@FreeBSD.org> provided a test
                system.

                Changed the NetBSD Configure stanza to do header
                file searches in /usr/include by default.  The
                LSOF_INCLUDE and NETBSD_SYS environment variables
                may still be used to specify other search paths.
                Discussions with Andrew Brown and Wolfgang S.
                Rupprecht <wolfgang@wsrcc.com> led to the change.

4.70            January 16, 2004
                Improved shell-portability of the linux stanza of
                the Configure script with a patch from Paul Jarc
                <prj@po.cwru.edu>.

                Added a "silent" rule to tests/Makefile for Paul.
                Updated, extended and clarified the test suite
                documentation in 00FAQ and 00TEST.

                Fixed Solaris 10 dlsof.h typo, reported by Mike
                Miscevic <miscevic@hotpop.com>.  The typo prevents lsof
                from loading cleanly in Solaris 10 builds past 40.

                Fixed a Solaris HSFS node number reporting bug and
                added a structure definition work-around for Solaris
                10.

                Converted PGP signing to GPG.  My previous PGP key can
                be used, but the gpg "--allow-non-selfsigned-uid"
                option may have to be used when it is imported into a
                GPG key ring.

                Added bz2 compression.

                Updated for OpenBSD 3.4.

                Added a work-around for a missing header file in the
                s10_44 Solaris 10 build.

                Added support for FreeBSD 5.2-BETA and 5.2-CURRENT.

                Updated Linux AX25 support with modifications supplied
                by Lutz Poetschulat <dl9cu@db0zwi.de>.

                Added raw IPv6 support to Linux lsof.

                Improved handling of parameters after "-i@".

                Improved file name test in LTdnlc.c.

                Added loop count controls to the reading of Solaris
                lock chains.  The change was implemented as a result of
                a report from Steve Gonczi <steve@relicore.com>.

                Based on a report from John Jackson <jrj@purdue.edu>,
                enabled a Solaris 10 <sys/lgrp.h> work-around for
                Solaris 9, too.  (Patch 112233 installs an lgrp.h on
                Solaris 9 that needs the work-around.)

                With help from Andrew Brown <atatat@atatdot.net> and
                John Heasley <heas@netbsd.org> added log-structured
                file system (LFS) support for NetBSD and OpenBSD.

                Added AMD64 to the list of FreeBSD 5.x-CURRENT
                supported architectures.  FreeBSD.org provides a test
                system, courtesy of (I believe) David O'Brien
                <obrien@FreeBSD.org>.

                Added a cast to lseek() in the HP-UX /dev/kmem-based
                kread() function to make it work properly with the
                bundled HP C compiler.

4.71            March 11, 2004
                Added text file support to Apple Darwin lsof and
                enabled the lsof executable portion of the LTbasic
                test.  Added support for Darwin kernel queue, POSIX
                semaphore and POSIX shared memory files.  Tested on
                Darwin 7.2 (aka Mac OS 10.3.2).

                Added process_kqueue() function prototypes for FreeBSD,
                NetBSD and OpenBSD.

                Picked some lint in AIX sources, lib/rnmh.c and
                tests/LTsock.c.

                Added "-x [fl]" cross-over option, which enables +d and
                +D processing to cross over symbolic links and|or file
                system mount points.  Discussion with Johan Lindquist
                <johan@smilfinken.net> and Eric Williams (aka The Ghost
                In The Machine) <ewill3@earthlink.net> on Linux news
                groups revealed the need for the option.

                Updated support for UnixWare 7.1.4.

                Added support for the optional reporting of socket
                options, socket states and TCP flags for most currently
                supported dialects. John Smith <lbalbalba@hotmail.com>
                and Tristan Nefzger <tn@bhtrader.com> requested the
                information.  The dialects and their versions for which
                this feature has become available include:

                    AIX 4.3.2 and 5.[12]
                    Apple Darwin 7.2
                    BSDI BSD/OS 4.3.1
                    Digital UNIX and Tru64 UNIX 4.0
                    FreeBSD 4.9 and 5.2
                    HP-UX 11 and 11.11 (aka 11i)
                    NetBSD 1.6ZH
                    OpenBSD 3.4
                    OPENSTEP 4.2
                    OpenUNIX 8
                    SCO OpenServer Release 5.0.6
                    Solaris 2.6, 8, 9 and 10
                    UnixWare 7.1.[134]

                Modified the Configure stanza for HP-UX 11 with better
                q4 detection.  Steve Bonds <3vhmxxm02@sneakemail.com>
                supplied the modification.

                Applied a patch from Mike Miscevic <miscevic@hotpop.com>
                to enable lsof to compile with the zone support in the
                Solaris 10 s10_b51 release.  Added information on lsof
                zone behavior to 00FAQ.

                Added a "-z [z]" option to Solaris 10 lsof.  It enables
                the listing of zone name and can also be used to select
                the listing of processes and their files from specified
                zones.

4.72            July 13, 2004
                Corrected Solaris 10 ZONE column title display bug with
                a patch from Joep Vesseur <Joep.Vesseur@Sun.COM>.  Joep's
                fix was offered as a patch to 4.71.

                Based on a report from Jean-Pierre Radley <jpr@jpr.com>
                about an unexpected GNU uname Configure interaction on
                OSR, and working from information received from Bela
                Lubkin, changed the OSR Configure stanza to use
                /bin/uname instead of uname.  Added an FAQ entry about
                Configure version detection problems.

                Added the +m and "+m m" options in response to a dialog
                with Robert T. Brown <rbrown@netmentor.com>.  The
                options allow the creation of a mount table supplement
                file which can be used on selected dialects to get
                device numbers when stat(2) and lstat(2) can't deliver
                them.  (That's generally the result of an inaccessible
                NFS server.)  Currently the new options are supported
                only on Linux.

                Made cpumask_t typedef _KERNEL compensation for FreeBSD
                5.2-CURRENT.  Refined it for 5.2.1-RELEASE with testing
                help from Scott Ellentuch <tuc@ttsg.com>.

                Added support for FreeBSD 4.10.  Larry Rosenman
                <ler@lerctr.org> kindly provided a test system.

                Added support for NetBSD 2.0 with patches supplied by
                Andrew Brown <atatat@atatdot.net>.  Andrew also
                provided two test systems.

                Made handling of Linux maps file more robust, based on
                a report from Jan Blunck <J.Blunck@tu-harburg.de>.  As
                a side benefit, made handling of generated stat(2)
                information more flexible.

                As a result of a discussion with Jason Fortezzo
                <fortezza@mechanicalism.net>, adjusted lsof for Solaris
                to obtain the maximum user name length from ut_name of
                the utmpx structure, if <utmpx.h> exists.

                Tested under OpenBSD 3.5.

                Updated 00README information about using gcc (via the
                Configure aixgcc abbrevisiation) to compile lsof on
                AIX.  Ann Janssen <ajanssen@nebook.com> made me aware
                the information was out of date.

                Added an AIX SIGDANGER handler and some 00FAQ sections
                on lsof memory usage after a discussion with Tom Qin
                <tom.qin@citigroup.com> about lsof memory usage.

                Added scripts/sort_res.perl5, contributed by Fabian
                Frederick <fabian.frederick@gmx.fr>.  The script
                displays lsof output sorted by size and path name.

                Improved handling of files on Linux NFS mount points
                that use the root_squash option, based on discussions
                with Paul Szabo <psz@maths.usyd.edu.au>.

                Updated FreeBSD 5.2-CURRENT support, based on a problem
                report from Filippo Natali <filippo@widestore.net>.

                Corrected improper FreeeBSD 5.x-CURRENT #if condition,
                reported by Kim Culhan <kimc@kim.net>.

                Added a Configure script work-around for AIX 5.2 lsof
                with JFS2, compiled by gcc >= 3.3.  The work-around
                was supplied by Florian M. Weps <fmw@hactrn.ch>.

4.73            October 21, 2004
                Added an __XPG4_CHAR_CLASS__ #define before
                #include'ing <ctype.h> on Solaris to restore lsof's
                ability to display special characters such as acute-e.

                Added wide-character (e.g., UTF-8) support where
                possible, prompted by a request from Kyungjoon Lee
                <kjoonlee@gmail.com>.  Some older dialects -- e.g.,
                NetBSD 1.4.1 -- don't support wide characters, so the
                wide character support is enabled by definitions in
                each dialect's machine.h.  Dialects with wide-
                character support are listed in 00FAQ.

                Make a FreeBSD 5.2-CURRENT adjustment for <sys/pipe.h>,
                supplied by Sergey A. Osokin <osa@FreeBSD.ORG>.

                Implemented a Linux feature request made by Jakub
                Jelinek <jakub@redhat.com> that enhances lsof's ability
                to locate UNIX domain sockets whose paths are named as
                arguments.  Jakub supplied suggested code.

                Dropped *claims* that lsof works on AIX below 5.1, SCO
                Dropped *claims* that lsof works on AIX below 5.1, SCO
                Openserver 5.0.4, Tru64 UNIX 5.0, and UnixWare below
                7.1.4.  Lsof will probably build and work on those UNIX
                dialect versions, but I no longer have any way to test
                lsof on them.

                Added support for FreeBSD 5.3 and 6.0.  The FreeBSD
                5.3 support hasn't been tested.

                Added FD test code that will allow dialect versions to
                test FD option selections.  Used the new code in the
                PSTAT-based HP-UX lsof to enable it to avoid scanning
                the mount table when its information is not needed.
                The addition was made in response to a query from
                Harvey Garner <Harvey.Garner@championusa.com> about
                lsof performance in a busy NFS environment.

                Upgraded lsof's AIX support level to AIX 5.3, based on
                a report from Dick Dunbar <Dick.Dunbar@Siebel.com>.  (I
                have not tested lsof under AIX 5.3.)  Based on Dick's
                recommendation and local testing changed the C for AIX
                version 6 and higher -qmaxmem option value to -1.

                Made LSOF_AR environment variable more useful and
                documented it in 00XCONFIG.

                Corrected the use of sum(1) to generate signatures for
                the lsof distribution and binaries to match the
                documentation that claims it is sum -r output.  Jin
                Guojun <jin@george.lbl.gov> noticed and reported the
                problem.

                Tested under OpenBSD 3.6.

                Added checksum and GPG certificate files for the bz2,
                gz and Z lsof distribution archives.  The new files
                reside with the distribution archives and supplement
                the signature information already inside the archives.

                Validated on Solaris 10, i8xpc, build s10_63.

4.74            January 17, 2005
                Fixed a Solaris segment fault bug on systems that lack
                a /dev/allkmem device.  Offered the fix as a patch to
                lsof 4.73.  The bug was reported by Donald Zoch
                <donald.zoch@amd.com>.

                Updated lsof for FreeBSD 6.0 and higher for a change in
                <sys/vnode.h>, based on a report from Sergey A. Osokin
                <osa@FreeBSD.ORG>.  Made the update available in a 4.74
                'A' edition pre-release.

                Filed an HP bug report about missing pstat(2) CWD info
                for LOFS on HP-UX 11.11 and higher.  The missing CWD
                info was noticed by Ermin Borovac <e.borovac@bom.gov.au>.
                Added info to 00FAQ about the problem, which can cause
                the lsof test suite's LTbasic test to fail.

                Updated the q4-generated tcp_s.h in the lsof
                distribution and added socket option support for HP-UX
                11.00.  Erwin Reyns <ereyns@europarl.eu.int> helped
                test.

                Updated for Solaris 10, build s10_69, with a patch
                supplied by Mike Miscevic <miscevic@hotpop.com>.

                Added v_path support to Solaris 10 lsof.  That relieves
                it of having to read and decode the kernel DNLC, and
                delivers full paths more reliably.

                Added specialized NFS4 support to Solaris 10 lsof.

                Applied Solaris 10 patches to lsof supplied by Casper
                Dik <casper@holland.sun.com>.

                Updated lsof for NetBSD 2.99.10 and tested it on a
                system provided by Andrew Brown <atatat@atatdot.net>.

                Added support for the FreeBSD 6.0-CURRENT f_vnode
                pointer in the file structure.

                Added BSDI, FreeBSD, NetBSD and OpenBSD support for the
                *effnlink member of the inode structure.  This makes
                the lsof LTnlink test run faster on all modified
                dialects and correctly on OpenBSD.

                Added ptyfs support for NetBSD, using modifications
                provided by Andrew Brown.
                
                Changed the netbsd Configure stanza to look by default
                for system header files in both /usr/include and
                /usr/src.  (The NETBSD_SYS environment variable can
                still be used to select an alternate for /usr/src.)

                Corrects two FreeBSD 4.10 RPC/XDR type definitions.

                Added an FAQ Q&A about setuid and setgid restrictions
                in HP-UX 11.11.  The information in the answer was
                supplied by Frank Sanders <frank.sanders@siemens.com>.

                Added abbreviations for AXI FCIO and FSNAPSHOT file
                flags.  Holger VanKoll <Holger.VanKoll@swisscom.com>
                reported the missing FCIO.

                Adjusted lsof's private AIX 64 bit rnode structure for
                64 bit AIX 5.2 systems.  (IBM doesn't distribute a
                correct <nfs/rnode.h> for it.)

                Corrected a Linux socket inode printing bug reported by
                Igor Schein <igor@txc.com>.

                Updated for FreeBSD 4.11.  The support compiles but
                hasn't been tested.

                Back-ported a FreeBSD 6.0-CURRENT fix to FreeBSD
                5.3-RELEASE-p1.  That was done to solve a compilation
                problem reported by Radko Keves <rado@daemon.sk>.

4.75            May 16, 2005
                Dropped the *claim* that lsof works on DEC OSF/1 and
                Digital UNIX, since my last 4.0 test system has been
                removed.  The last tested distribution of lsof on DEC OSF/1
                and Digital UNIX was revision 4.74.  It has been archived
                on lsof.itap.purdue.edu in pub/tools/unix/lsof/OLD/src.

                Added negation forms to the values in the -g (PGID) and
                -p (PID) lists.  Negated PGID and PID values, like
                negated UID or login name values, are applied without
                ORing or ANDing and take effect before any other
                selection criteria are applied.

                At the request of Marcin Gozdalik <gozdal@gmail.com>
                added a -X option for Linux.  The option inhibits the
                reading of the /proc/net/tcp* and /proc/net/udp*
                files.

                Based on a report from David Gutierrez
                <davegu1@hotmail.com> changed DEC OSF/1 process table
                allocation to request memory in smaller increments.

                Based on a report from jayjwa <jayjwa@atr2.ath.cx>
                updated the Customize script to use "tail -n 1" where
                possible.

                Enabled support for FreeBSD 5.4.

                Improved the BSDI, FreeBSD, NetBSD, OpenBSD and Solaris
                kvm_open() and kvm_openfiles() error messages.

                Enabled support for NetBSD 2.99.12.

                Improved HP-UX Configure stanza with help from Piet
                Starreveld <pstarrev@csc.com>.  Picked some lint Piet
                found.

                Enabled IPv6 support for HP-UX > 11.  Piet Starreveld
                helped test it on 11.23, among others.

                Updated for HP-UX 11.23 on the ia64 architecture.

                Updated to latest FreeBSD 6.0-CURRENT, using a test
                system provided by Andrzej Tobola <ato@iem.pw.edu.pl>.

                Added support for SCO OSR 6.0.0 and UnixWare 7.1.4 with
                help from Richard at SCO.

                Corrected a Linux bug in NFS handling, reported by Karel Zak
                <kzak@redhat.com>.  Karel supplied a patch.

                Improved the code for accessing an AIX 3.2 and higher
                sockaddr_un structure, thus eliminating a segmentation
                fault possibility.

                Updated for AIX 5.3.

                Added preliminary (DEBUG) support for the AIX SANFS
                file system.

                Fixed a bug in the Solaris 10 processing of the vnode's
                v_path pointer with code supplied by Edward Jajko
                <ejajko@portal.com>.  The fix was offered as a patch to
                4.74.

                Dropped support for OpenUNIX 8, since a test system is
                no longer available.  Archived an OpenUNIX-only
                distribution of the last revision (4.74) tested on
                OpenUNIX in pub/tools/unix/lsof/OLD/src.

                Tested under Openbsd 3.7.

                Tested under Darwin 7.7.0.

                Enabled building on amd64 Solaris 10 with hints from
                Marc Aurele La France <tsi@ualberta.ca>.  Marc provided
                a test system.

                Supplied a missing quote in the FreeBSD Configure
                stanza.  Carl Cook <Info@quantum-sci.com> reported the
                problem.

                Removed "-O" option from tests/Makefile so that the
                HP-UX bundled compiler won't complain.

4.76            August 30, 2005
                Corrected an example and spelling errors in man page.

                Updated for Apple Darwin 8.x with changes supplied by
                Allan Nathanson <ajn@apple.com>.  Allan also provided a
                test system.

                Completed documentation of CLRLFILEADD in all machine.h
                files.

                At the request of Chris Markle <cmarkle@sendmail.com>
                added partial listen queue length to socket options
                displayed when -Tf is specified.  Partial queue length
                is not reported for all dialects.  (00FAQ lists the
                ones where it is reported.)

                Updated for FreeBSD 7.0 with information supplied by
                Andrzej Tobola <ato@iem.pw.edu.pl>.

                Updated Solaris VxFS support for VxFS versions 4 and
                above with technical advice from Craig Harmer
                <craig_harmer@symantec.com>, Gary Millen
                <gary_millen@symantec.com> and Chuck Silvers
                <charles_silvers@symantec.com>.  Testing help was
                provided by Michael Antlitz <mantlitz@prophasys.com>,
                Steve Ginsberg <steve@dhapdigital.com> and Kenneth
                Stailey <kstailey@yahoo.com>.

                Fixed a Solaris address space map processing bug.
                Janardhan Molumuri <mjanardhan@gmail.com> reported the
                bug and help me identify it.  Made the fix available as
                a patch to 4.75.

                Added support for Solaris 10 port and CTFS files.  The
                CTFS support is imcomplete, because I don't know how
                to get inode number, size and link count.  (There's
                a new 00FAQ entry about that.)

                Investigated a report from Christopher J Warweg
                <warwegc@GAO.GOV> that the CHECKSUMS for the lsof 4.75
                binary for 64 bit Solaris 8 was incorrect.  It was my
                packaging error.  I rebuilt and repackaged the binary.

                Enabled support for Linux map file names with embedded
                spaces.

4.77            April 10, 2006
                Added -X option support for Solaris 10 and above.  When
                -X is specified lsof will report cached v_node path
                names for unlinked files, followed by "(deleted)".
                Improved cached vnode path name handling by adding
                "(?)" to the end of path names of questionable accuracy.
                Updated 00FAQ to reflect these changes.

                Updated for FreeBSD 7.0-CURRENT.

                Fixed name addition spacing bug, reported by Stuart
                Anderson <anderson@ligo.caltech.edu>.  Also updated
                Solaris 10 SAMFS support at Stuart's request.

                Added missing "break;" and another HASSTATVFS test to
                the NetBSD and OpenBSD dnode.c.  Bill Behr
                <bbehr@networkstoragecorp.com> reported those needs.

                Fixed an HP-UX 11 file descriptor "chunk" size problem,
                reported by Per Allansson <per@appgate.com>.  Per helped
                devise the fix and tested it.  This fix was offered as
                a patch to lsof 4.76.

                Updated for FreeBSD 6.0-STABLE and FreeBSD
                6.1-PRERELEASE.

                Updated scripts/sort_res.perl5 with changes supplied by
                Frederick Fabian <fabian.frederick@skynet.be>, the
                author of the script.

                Corrected +|-M man page documentation error, reported
                by Roger Cornelius <rac@tenzing.org>.

                Improved FreeBSD user device random seed generation in
                response to a problem report from Danny Braniss
                <danny@cs.huji.ac.il>.

                Eliminated three syntax error bugs and other compiler
                complaints from the PSTAT-based lsof.  H. Merijn Brand
                <h.m.brand@xs4all.nl> reported the problems and tested
                the fixes.

                Eliminated compiler complaints in the test suite.

                Investigated problems with the building of lsof on
                PA-RISC HP-UX 11.23, based on a report from John
                Orndorff <John.Orndorff@sungard.com>.  Found that
                neither the HP bundled C compiler nor gcc would build
                lsof, but the the HP unbundled ANSI C compiler would.
                Concluded that HP bundled C compiler can't handle
                <gssapi/gssapi.h>.  Devised a work-around to gcc's
                omission of the rpcent structure definition of
                <netdb.h> that allows it to compile lsof's print.c, but
                the resulting binary doesn't run reliably.  Documented
                the situation in 00FAQ.

                Changed reporting of unknown file types.  The number of
                an unknown type is now reported as four octets.  The
                change was made in response to a Linux lsof bug report
                from Karel Zak <kzak@redhat.com>.

                Dropped the *claim* that lsof works on BSDI BSD/OS
                since my last test system has been removed.  The last
                tested distribution of lsof for BSDI BSD/OS was
                revision 4.76.  It has been archived on
                lsof.itap.purdue.edu in pub/tools/unix/lsof/OLD/src.

                As a result of discussing the lsof source tar's MD5
                checksum with Andrew Bell <andrew.bell.ia@gmail.com>,
                changed the description of a suitable MD5 tool in the
                lsof distribution's documentation to name the openssl
                "dgst" command.

                Enabled compilation on Solaris 10 1/06 with a fix sent
                by Jason Fortezzo <fortezza@mechanicalism.net>.  Made
                the fix available as a patch to 4.76.

                Adjusted to FreeBSD 5.5-PRERELEASE.

                Corrected a bug in the lsof library's process_file()
                function to enable the locating of AIX XTI sockets by
                their TCP/IP address values.  The bug was reported by
                Michel Dubois <Dubois@sears.ca>.

                Based on a bug report from Karel Zak <kzak@redhat.com>
                added command name length checking to as many dialects
                as possible (Linux for Karel) for the "-c c" option.

                Updated for OpenBSD 3.[89].  Tested the 3.9 update on a
                system provided by David Mazieres.  I have not tested
                on OpenBSD 3.8, but David reports lsof 4.76 worked
                there.

                Ended regression testing of lsof on 32 bit Solaris 8
                with the ending of access to a test system.  Lsof
                continues to be tested on 64 bit Solaris 8.

4.78            April 24, 2007
                Added more information to the lsof FAQ about missing
                link counts and sizes on Linux files.

                Simplified Linux stat() and lstat() usage.

                Relocated #define's that prevent OpenBSD compilation on
                systems without a /proc file system.  Pieter Bowman
                <bowman@math.utah.edu> reported the problem.

                Added code to avoid processing Linux /proc/<PID>/maps
                file entries with zero device and node numbers.  Some
                such entries now have names associated with them that
                are not path names -- e.g., "[heap]", "[stack]" or
                "[vdso]".  Scott Worley <sworley@chkno.net> reported
                lsof's mishandling of such entries.

                Added SELinux security context support, provided by
                James Antill <james.antill@redhat.com>.  I have not
                tested this, but James and Karel Zak <kzak@redhat.com>
                have.

                Added the #include of <sys/types.h> to Solaris lsof to
                enabled compilation on Solaris 10 6/06.  Peter Harvey
                Peter.Harvey@Sun.COM diagnosed the problem and supplied
                a patch.

                Added better support for JFS2 on AIX 5.2 and 5.3, based
                on bug reports and help from Thomas Braunbeck
                <BRAUNBEC@de.ibm.com> and Tom Whitty <TWHITTY@cerner.com>.

                Documented that lsof supports AIX 5.3 only up through
                maintenance level 1 (ML1).

                Enabled Solaris lsof to locate the AFS vnode operation
                address for OpenAFS 1.4.1.  The fix was supplied by
                Robert Jelinek <Robert.Jelinek@MorganStanley.com>.

                Enabled support for Solaris 10 ZFS.  If the necessary
                ZFS header files aren't found, lsof offers the option
                to drop ZFS support, to use internal, possibly
                inaccurate structure definitions, or to supply a path
                to the missing header files.  Horst Scheuermann
                <Horst.Scheuermann@uni-trier.de> provided a development
                system and helped test the support.

                Corrected a typo in the man page, reported by Eric S.
                Raymond <esr@thyrsus.com>.

                Changed the spelling of macroes to macros in lsof
                source and documentations files, based on a suggestion
                from Josh Soref <timeless@gmail.com> and verification
                with the OED.

                The following dialects are no longer supported: 32 bit
                AIX 5.2, HP-UX 11, OpenStep 4.2, Solaris 2.6, Solaris
                8, True Unix 64 and UnixWare 7.1.4.  Lsof may work on
                them, but I no longer have test systems for them.
                Support for OpenBSD ends at its version 3.9 for lack of
                interest in the port.

4.79            April 15, 2008

                **************** IMPORTANT NOTE ******************
                *                                                *
                * Lsof support has been reduced to the following *
                * dialects: AIX, FreeBSD, Linux and Solaris, and *
                * only in selected versions of those dialects.   *
                * The selected versions are listed in this file  *
                * and in other lsof documentation.               *
                *                                                *
                * I have made this move because of retirement    *
                * and because I no longer have many test systems *
                * available to me.                               *
                *                                                *
                * Vic Abell                                      *
                *                                                *
                **************************************************

                Fixed a Solaris VXFS permission problem when accessing
                the VXFS inode offsets.  The bug was reported by
                Gregory A. Ivanov <ivga@mts.ru>.  Gregory tested the
                fix.

                Moved an #include <string.h> later in FreeBSD dlsof.h
                to enable compilation on recent FreeBSD releases.  The
                change was supplied by Roy Marples <uberlord@gentoo.org>.

                Improved Linux /proc file stream reading speed by applying
                an expanded version of a patch from Eric Dumazet
                <dada1@cosmosbay.com> that allocates a page size buffer
                to each stream.  Improved TCP, TCP6, UDP and UDP6 hashing
                by determining the hash bucket count from the /proc/net
                sockstat and sockstat6 files.  The improvement was
                suggested by Eric and he provided sample code.  Eric also
                tested both improvements.

                Modified Configure script to build lsof on FreeBSD
                6.2.  Tested it on a system provided by Larry Rosenman
                <ler@lerctr.org>.

                Fixed a Linux maps file processing bug that prevented path
                names from having an embedded colon.  James Lingard
                <jchl@arastra.com> reported the bug and helped with its
                fix.

                Based on reports from Eric Dumazet and Samuel Thibault
                <samuel.thibault@ens-lyon.org> added support for the
                Linux 2.6.22 kernel's /proc/<PID>/fdinfo files -- i.e.,
                file offset and flags.  Samuel Thibault provided a test
                system.

                Fixed a Linux UNIX socket memory leak, reported by
                Philip Shin <pshin@xceedium.com>.  Phillip supplied the
                fix.

                With generous assistance from HP added support for an HP-UX
                11.23 patch that makes TLI/XTI socket address information
                available.

                Fixed a header file problem for FreeBSD 6.2 on the Alpha
                architecture.  The problem was reported by Pekka Honkanen
                <phonkane@cc.hut.fi>.  Pekka tested the fix.

                Based on a report and using suggested fixes from Karel Zak
                <kzak@redhat.com>, made these changes to Linux lsof: corrected
                a getpidcon() error message; insured that inode numbers are
                handled correctly for their unsigned long long type; and
                improved SELinux handling.  At the request of Alon Bar-Lev
                <alonbl@gentoo.org> added the LINUX_HASSELINUX environment
                variable to enable or inhibit SElinux support unconditionally.

                Updated Configure for FreeBSD 8.0-CURRENT and tested lsof on
                AMD64 there.

                Added a patch provided by Oles Hnatkevych
                <don_oles@able.com.ua> for FreeBSD systems where the root
                file system is on a CD9660 device.

                Added compensation for the disappearance of FMARK and FDEFER
                from the FreeBSD 8.0-CURRENT <sys/file.h>.

                Updated FreeBSD lsof with ZFS support.  Larry Rosenman
                <ler@lerctr.org>, Erwin Lansing <erwin@FreeBSD.org>, Wesley
                Shields <wxs@atarininja.org> and Dmitry Morozovsky
                <marck@rinet.ru> provided test systems.

                Fixed a socket file identification problem reported by
                Pavol Rusnak <stick@gk2.sk>.  Pavol also reported the
                cause of the problem.

                Added the ability to format the repeat mode marker line
                with strftime(3), where the dialect supports the
                localtime(3) and strftime(3) C library functions.  The
                addition was suggested by Mike Depot <mdepot@comcast.net>,
                who also tested it.  The addition required creating a new
                main lsof source module, util.c, that contains functions
                whose compilation conflicts with the general header file
                tree defined by lsof.h and dlsof.h.

                Based on reports from Andrei V. Lavreniyuk
                <andy.lavr@reactor-xg.kiev.ua> and Pav Lucistnik
                <pav@FreeBSD.org> updated the FreeBSD 7.0 and above
                file lock handling to use new locking structures.  The
                update requires a terrible hack to get a definition for
                the lock owner structure from a kernel source module
                into a local lsof header file.

4.80            May 12, 2008
                Updated for a FreeBSD 7.0 and above byte level locking
                change.  The problem was reported by Conrad J. Sabatier
                <conrads@cox.net>, who helped test the update.  Wesley
                Shields <wxs@FreeBSD.org> provided an 8.0-CURRENT test
                system.

                Propagated the FreeBSD 7.0 and above locking changes to
                FreeBSD 6.x, based on a report from Edwin Groothuis
                <edwin@FreeBSD.org>.

                Added warnings for unsupported dialects or versions.

                Added Linux support for the UDPLITE protocol.  Eric
                Dumazet <dada1@cosmosbay.com> supplied a patch.

                Added a missing quote to the Configure script's
                FreeBSD stanza.

                Added a usage.o rule to the HP-UX PSTAT-based
                Makefile.  I mistakenly deleted the rule at revision
                4.79.  The missing rule was reported by Kawaljeet Kaur
                <kawaljeet.malviya@gmail.com> who tested the corrected
                Makefile.

4.81            October 21, 2008
                Updated the Darwin libproc sources with changes from
                Allan Nathanson <ajn@apple.com>.  Tested them on a iMac
                mini, provided by Apple Inc.

                Changed dummy declarations in library source files to
                eliminate complaints about unused variables and empty
                object files.  This change may not work on dialects I
                can no longer test; it has been tested on some versions
                of AIX, Darwin, FreeBSD, Linux and Solaris.

                At the request of Hal Brooks <hal@uga.edu> added support
                for Linux /proc/net/packet files.  Hal tested it.

                Added socket file only performance enhancements to Linux
                and PSTAT-based HPUX lsof.

                Added htonl call around improper usage of INADDR_LOOPBACK;
                report from an Apple engineer forwarded by Allan Nathanson
                <ajn@apple.com>.

                Adjusted for FreeBSD-8.0 change in device number handling.
                The adjustment should work for FreeBSD 5 and above, should
                the 8.0 change be propagated downward.  The problem was
                reported by Pav Lucistnik <pav@FreeBSD.org>.  An updated
                test system was provided by Erwin Lansing <erwin@FreeBSD.org>.

                Reduced AIX support to version 5.3, since test systems with
                older versions are no longer available to me.

                At the request of Marjo F. Mercado <mmercado@xceedium.com>
                and Phil Shin <pshin@xceedium.com> applied some speed
                improvements to lsof, particularly when the files of
                interest are /Internet files -- i.e., selected with lsof's 
                "-i" option.  Added a two new options to assist the
                improvements: 1) "-c^<command>" to tell lsof to exclude the
                named command(s); and 2) "-stcp|ud>:[^]state' to tell lsof
                to include in its reporting or exclude ('^') from its
                reporting Internet files in the named states (e.g., LISTEN,
                ^CLOSE_WAIT, IDLE, etc.)  For the most part these changes
                apply only to AIX, Darwin, FreeBSD, PSTAT-based HP-UX, Linux
                and Solaris, since those are the only places I could test
                them.  They are controlled by the HASTCPUDPSTATE definition
                in each dialect's machine.h header file.  Marjo and Phil
                provided HP-UX 11.23 and 11.31 test systems.

                Fixed a stat(2) problem on HP-UX 11.31 while testing the
                speed improvements.

                Adjusted for kernel header file changes in FreeBSD
                8.0-CURRENT.  Larry Rosenman <ler@lerctr.org> provided
                a test system.

                Added a warning for Solaris systems where VxFS node info
                can't be obtained from the VxFS utility library.  The
                warning was requested by Tom Matthews <Tom.MATTHEWS@rbs.com>.

                Corrected mishandling of file system path name arguments
                that have trailing slashes, except, of course, the root
                file system, "/".  Allan Nathanson <ajn@apple.com> reported
                the bug.

4.82            March 25, 2009
                Corrected an over-zealous exclusion test that caused
                lsof to report nothing when it was given no arguments
                and built with HASSECURITY and HASNOSOCKSECURITY enabled.
                Joshua Kinard <kumba@gentoo.org> reported the bug and
                supplied information for reproducing it.

                Based on a report from Dan Trinkle <trinkle@cs.purdue.edu>
                corrected use of <sys/utsname.h> for 32 bit Solaris 10
                and above compilations.  Simultaneously eliminated a
                casting complaint in arg.c and updated Configure to use
                the appropriate 64 bit compilation option (-xarch=v9 or
                -m64) with the Solaris Sun C compiler.

                Updated for FreeBSD 7.1-PRERELEASE with information
                supplied by Larry Rosenman <ler@lerctr.org>.

                Updated the Darwin libproc sources with changes from
                Allan Nathanson <ajn@apple.com>.  Tested them on a iMac
                mini, provided by Apple Inc.  Allan also provided man
                page corrections.

                Updated the FreeBSD Makefile to use the ${MAKE} variable
                for ZFS dnode2.c module compilation, based on a suggestion
                from Alexis Ballier <aballier@gentoo.org>.

                Improved the Solaris VxFS library location test, based on a
                suggestion from Jason Fortezzo <fortezza@mechanicalism.net>.
                Jason tested the change.

                Updated Solaris 10 ZFS support for ZFS version 4 and ZFS
                pool version 10, using a test system kindly provided by
                Vladislav Nespor <vladislav.nespor@id.ethz.ch>.  Renata
                Maria Dart <renata@slac.stanford.edu> tested on ZFS
                version 4, verifying that the update works there, too.
                (ZFS pool version 10 is apparently the ZFS version shipped
                with the 10/08 update to Solaris.  The original ZFS
                support targeted ZFS version 3.)

                I still consider ZFS support in Solaris lsof a hack,
                because it depends on a znode structure definition that
                I developed using dbx.  Sun is remiss in not distributing
                the ZFS header files used to build the distributed kernel.

                Because of the znode structure definition hack, I can't
                guarantee that lsof ZFS support will work for any other
                versions of ZFS.

                Solaris 10: adjusted to a change in the way devices are
                stored in the kernel; fixed a problem in zone handling;
                and added rudimentary sharedfs support.  Carson Gaspar
                <carson@taltos.org> reported the device number problem,
                provided a test system, and tested the changes.  Peter
                Vines <psv2b@eservices.virginia.edu> reported the zone
                handling problem and tested the fix.

                Adapted to FreeBSD 8.0-CURRENT changes in device number
                computation.  Problem was reported by Erwin Lansing
                <erwin@FreeBSD.org>.  Larry Rosenman <ler@lerctr.org>
                provided a test system.

                Corrected Solaris Configure test for appropriate VxFS
                library when using gcc to compile lsof.

                Updated for loss of KAME IPv6 FreeBSD accommodations.

                Adapted to FreeBSD 7.2.  Made Configure script recognized
                FreeBSD 6.3.

4.83            January 18, 2010
                Converted Solaris 10 and above ZFS support to use the CTF
                debugger library, libctf.  Code was supplied by Robert
                Byrnes <Robert.Byrnes@deshaw.com>.

                Corrected a typo in the testing of the LINUX_HASSELINUX
                environment variable in the Configure script.  The error
                was reported by Mike Frysinger <vapier@gentoo.org>.
                At Mike's request made Configure script accept LSOF_RANLIB
                (ranlib command), LSOF_CFGF (additional configuration flags)
                and LSOF_CFGL (additional library specifications) from the
                environment.

                Enabled complilation of Solaris 10 lsof after a recent Sun
                patch which changed the PC file system's structure. Peter
                Vernam <pvernam@draper.com> reported the problem and helped
                with the fix.

                Made the sort of configuration CFLAGS in the CkTestDB
                script impervious to locale settings.

                Ported to Solaris 11, using a test system kindly provided
                by David Day <dday76@gmail.com>.

                Adjusted to the disappearance of <nfs/rpcv2.h> in FreeBSD
                8.0-BETA1.

                Changed Solaris node type lookup to a hashed method and
                added some ability for it to handle duplicate vnodeop names
                in /dev/ksyms.

                Updated for FreeBSD 9.0-CURRENT.  Andrzej Tobola
                <ato@iem.pw.edu.pl> provided a test system.  Extends the
                fix to FreeBSD 6.0 and above via a Configure test and a
                compile-time definition.  The need for the extension was
                reported by Erik Trulsson <ertr1013@student.uu.se>>

                Made corrections to FAQ typographical errors, suggested
                by Josh Soref <timeless@gmail.com>.
                
                Added __UCLIBC__ test to Linux dlsof.h so lsof would compile
                on an Intel ARM XScale processor.  The addition was provided
                by Doug Kehn <rdkehn@yahoo.com>.

                Added test for <utmpx.h> to FreeBSD configuration.  Improved
                its use in lsof.h.  The changes were supplied by Martin Wilke
                <miwi@FreeBSD.org>.

4.84            July 29, 2010
                Fixed a man page nroff command error with a correction
                supplied by Josh Soref <timeless@gmail.com>.

                Made Configure script recognize FreeBSD 7.3.  Larry Rosenman
                <ler@lerctr.org> provided a test system.

                Improved task support, initially for Linux only, with help
                provided by Jerome Marchand <jmarchan@redhat.com> and
                Miklos Szeredi <mszeredi@suse.cz>.  The support includes a
                new compile-time definition, HASTASKS, and a new run time
                option, "-K" to select task reporting.

                While adding help output support for "-K", reorganized the
                printing of help columns to make it much easier to add a new
                option description.

                Updated the Solaris PC file system structure patch in
                revision 4.83 so it will compile with gcc.

                Disabled the Solaris lgrp_root work-around in the Solaris
                machine.h so it won't cause compilation problems on Solaris
                11.  It no longer causes compilation problems on my Solaris
                9 and 10 test systems, but some older Solaris 9 and 10
                versions may still need it, so the work-around was left in
                the Sun machine.h and a FAQ entry was created about it.

                Updated for Solaris 11 b134, using a test system kindly
                provided by Carson Gaspar <carson@taltos.org>.  Made
                provisions for the next ZFS version.  Added info about
                the failure of the LTnlink test on ZFS file systems.

                Corrected typo in Configure script, reported by Dmitry
                Berezin <dmitryb@oit.rutgers.edu>.

4.85            September 27, 2011
                John Dzubera <Zube@CS.ColoState.EDU> kindly provided a patched
                Solaris 9 test system with the lgrp_root conflict and I was
                able to devise an automatic work-around for the conflict.  The
                special note in .../dialects/sun/machine.h was removed and
                the 17.28.1 FAQ entry was modified to reflect the update.

                Added a Solaris 11 work-around for a typedef problem with
                <sys/mutex.h>.  Carson Gaspar <carson@taltos.org> reported
                the problem and supplied the work-around.

                Added support for FreeBSD 7.4 and 8.2; tested on systems
                provided by Larry Rosenman <ler@lerctr.org>.

                Added support for 32 bit Solaris 11 lsof with mods supplied
                by Jan Wortelboer <J.H.P.Wortelboer@uva.nl>.

                Added Solaris 11 support for using an alternate genunix
                location.  Bill Goodridge <bill@its.brooklyn.cuny.edu>
                reported the alternate location.

                Added further Linux cross configuration support to lsof's
                Configure script.  The additional support was supplied by
                Grant Erickson <erick205@umn.edu>.  See the descriptions of
                the LINUX_* environmen  variables in 00XCONFIG for more
                information.  Tested lsof on Linux kernel 2.6.32 and picked
                some lint that surfaced during the test.

                Added fixes and changes for Apple Mac OS X 10.6, provided by
                Allan Nathanson <ajn@apple.com>.  Allan also provided a test
                system.

                Tested on FreeBSD 6.4 i386, using a test system provided by
                Terry Kennedy <TERRY@tmk.com>.  Updated for recent FreeBSD ZFS
                changes on an 8.2 amd64 test system also provided by Terry.

                Changed documentation to indicate FreeBSD 7.x is no longer
                supported, since I no longer have a test system.

                Made some changes to the lsof man page, suggested by Navid
                <evi1m4chine@googlemail.com>.

                Added compensation for Solaris 10 systems that have patch
                144488-10.  The patch requires that the new header file
                <sys/socket_proto.h> be included while _KERNEL is defined.
                Brett Bartick <Brett.bartick@nomura.com> reported the problem
                first, followed by Stuart Anderson <anderson@ligo.caltech.edu>.
                Michael Hocke <michael.hocke@nyu.edu> suggested a work-around
                which I refined to limit it to the specific Solaris 10 instance
                and then tested on a system provided by Charles Stephens
                <cfs@cowlabs.com>

                Added the +|-e option for Linux.  It exempts file systems
                named by path from function calls that might block in the
                kernel -- i.e., stat(2) and lstat(2), and when the +e form
                is used, readlink (2).  The new packager of lsof for the
                Linux Fedora and RHEL distributions, Peter Schiffer
                <pschiffe@redhat.com>, asked for the feature so it could
                be used with Clearcase file systems, whose implementation
                can block stat(2) calls.  I consider this feature very risky
                and easy to misuse -- e.g., specifying the file system as
                '/' would exempt all file systems.  I don't intend to
                propagate this option to any other UNIX dialect that lsof
                currently supports.

                Made FreeBSD 9 adjustment.

                Fixed a Linux bug that prevented the display of paths for
                abstact UNIX sockets.  Masatake Yamato <yamato@redhat.com>
                reported the bug and supplied a patch.

                Added compensation for the removal of RPC header files from
                GlibC 2.14 for Linux.  Marek Behun <kabel@blackhole.sk>
                reported the problem and supplied a patch.

                Added support for Linux Netlink protocol.  Masatake Yamato
                requested the support and supplied a patch.  Peter Schiffer
                <pschiffe@redhat.com> provided a test system.

                Corrected Linux UDP6-lite path.  The error was reported by
                Masatake Yamato and he also supplied a patch.

4.86            April 10, 2012
                Lsof for AIX is no longer supported on any versions of that
                operating system.

                Added information about the clang compiler for FreeBSD to the
                FAQ.

                Corrected an arg.c bug in the accumulation of +|-e option
                values, reported by Peter Schiffer <pschiffe@redhat.com>.
                This correction was supplied as a patch to revision 4.85.

                Enabled FreeBSD 10 support and tested it there on a system
                provided by Larry Rosenman <ler@lerctr.org>.

                Updated for latest Solaris 11 with patches supplied by
                Carson Gaspar <carson@taltos.org>.  Carson supplied a test
                system.

                Adjusted Linux file system search method to compensate for
                NFS mounts that have duplicate device numbers.  The problem
                was reported by Peter Schiffer <pschiffe@redhat.com>, who
                provided a test system.

                At the request of Peter Schiffer <pschiffe@redhat.com>, added
                support for Linux SCTP socket files.  Peter provided a test
                system.  Applied a warning patch supplied by Peter.

                Added support for Mac OS X 10.7 (Lion), provided by Allan
                Nathanson <ajn@apple.com>.  Allan also supplied a test
                system.

                Enabled FreeBSD 8.3 support and tested it there on a system
                provided by Larry Rosenman <ler@lerctr.org>.

                Corrected the FAQ information on ZFS with Solaris 10 after
                Steven Blackmon <stblackm@cisco.com> and Prasad Jampala
                <jampalp@cisco.com> pointed out that it was incorrect --
                i.e., outdated by the libctf changes at revision 4.83.

                Added code to handle a Linux NFS-mounted root.  Jia He
                <hejianet@linux.vnet.ibm.com> reported the need for this.

4.87            January 2, 2013
                Added an entry to 00FAQ about lsof behavior when the
                HASSECURITY and HASNOSOCKSECURITY options are defined.
                Carson Gaspar <carson@taltos.org> pointed out the need
                for this clarification.

                Added a work-around for a missing definition of mach_port_t
                in Darwin 9 (Mac OS/X 10.5.8).  The work-around was supplied
                by Jim Reid <jim@rfc1035.com>.

                Added support for Linux anon_inodefs, provided by Masatake
                YAMATO <yamato@redhat.com>.

                Documented a Solaris 9 and 10 portmap reporting problem
                (+M) in 00FAQ.  The problem was reported by Clint
                Roberts <Clint.Roberts@ttius.com>.  I have no solution
                to the problem, but discuss a possible work-around in
                the answer to this 00FAQ question: "Why doesn't lsof
                report portmap registrations for some Solaris versions?"

                Added FreeBSD support for the oldnfs and newnfs file system
                types.  Daniel Braniss <danny@cs.huji.ac.il> reported the
                need for the addition.

                Added ICMP socket support for Linux with code provided by
                Masatake YAMATO <yamato@redhat.com>.

                Corrected the reporting of process group ID for libproc
                versions of Mac OS X with a patch from Jeff Trawick
                <trawick@gmail.com>.  The patch has not been applied to
                Darwin kmem versions, because of little call for them
                and inadequate test system access.  The patch has been
                tested on Mac OS X 10.8 (Mountain Lion), courtesy of a
                test system provided by Allan Nathanson <ajn@apple.com>.

                Added thread support to those FreeBSD versions that have
                ki_numthreads in their kinfo_proc structure.  This also
                activates the -K option for those FreeBSD versions.  Jeff
                Trawick reported problems with FreeBSD lsof when threads
                are present and this addition solves those problems.

                Made changes to 00FAQ and the distribution, suggested by
                Warren Young <warren@etr-usa.com>.  The 00FAQ changes
                center on sections that discuss the -s option.  The changes
                to the distribution include a ChangeLog file that is either
                a pointer to or a copy of 00DIST, the distribution notes.

                Added support to FreeBSD for using the clang compiler.

                Added Linux support for using the getxattr() call to obtain
                socket protocol identification when it is can't be obtained
                from the /proc/net files that lsof examines.  Masatake YAMATO
                <yamato@redhat.com> developed the kernel patch to getxattr()
                and supplied the lsof patch.

4.88            October 13, 2014
                Reduced to 50 the number of open file descriptors lsof
                attempts to close while trying to protect itself from a
                file descriptor exec() attack.  This limits the overhead
                lsof incurs on systems that have large file descriptor
                limits, yet provides sufficient open descriptors for the
                library functions lsof calls.

                Updated for changes in FreeBSD 10 with advice from Eygene
                Ryabinkin <rea@freebsd.org>.  Taught Configure to recognize
                FreeBSD 8.4.

                Herein am noting that lsof for Solaris 10 or 11 is no longer
                supported.  I no longer have test systems.  Some support is
                still available from Casper Dik <Casper.Dik@oracle.com> and a
                Solaris 11 patch he provided is included in this revision.

                Initialized local variables in the Linux process_id() function.
                Jia He <jiakernel@gmail.com> reported the problem.

                Added support for FreeBSD 11.

                Updated FreeBSD ZFS Configure stanza to supply a dummy
                opt_kdtrace.h when needed.

                Added tmpfs file system support for FreeBSD.

                Since a test system is no longer available, dropped the
                claim of FreeBSD 4.9 support.

                Added the +|-E options for Linux.  -E displays endpoint info;
                +E displays endpoint info and endpopint files.  Masatake YAMATO
                <yamato@redhat.com> requested this support and suggested code
                to implement it.

                Fixed a Linux bug handling processes whose command includes a
                non-printing character, particularly a NEWLINE character, and
                clarified printing of single '\\' characters in command and
                file names.  Stephane Chazelas <stephane.chazelas@gmail.com>
                reported the problem. 

                Added support for Linux RDMA and CRYPTO protocal names and UNIX
                socket type with code from Masatake YAMATO <yamato@redhat.com>.

                Fixed field output to insure that the field descriptor field is
                always selected, since it identifies the file set.  The bug was
                reported by Gary Plewa <gary.m.plewa-1@lowes.com>.

4.89            July 7, 2015
                Applied correction from Casper Dik <Casper.Dik@oracle.com> to
                his patch for Solaris 11 that I applied incorrectly in revision
                4.88.

                Updated for latest version of FreeBSD 11.0-CURRENT.

                Compensated for a missing FreeBSD 10.0 typedef of bool on the
                i386 architecture.  Allen Hewes <rallenh@hotmail.com> provided
                a test system. Andrey Chernov <ache@freebsd.org> provided
                useful advice.

                Improved tests/Add2TestDB script with a patch from Peter
                Schiffer <pschiffe@redhat.com>.  Added patches from Peter to
                eliminate Linux gcc warnings.  Updated Lsof.8 with improvements
                supplied by Bjarni Ingi Gislason <bjarniig@rhi.hi.is>.

                Changed FreeBSD global CFLAGS extraction per Terry Kennedy
                <TERRY@tmk.com>.  Also made sure -DNEEDS_BOOL_TYPEDEF is
                #define'd when the resulting CFLAGS doesn't contain it.  Terry
                reported that need.

                Improved Linux test for tcp.h in response to a report from
                Cato Auestad <cato@cato.ninja>.  Cato did the testing.

                Fixed Linux UNIX socket search by name bug reported by
                Stephane Chazelas <stephane.chazelas@gmail.com>.

                Added Linux display of UNIX socket endpoint information with
                code provided by Masatake YAMATO <yamato@redhat.com>.  Peter
                Schiffer <pschiffe@redhat.com> provided a test system.

                Insured that type definitions from <vm/vm.h> were again made
                visible to lsof on FreeBSD 11 after a system header file change
                hid them.

4.90            February 14, 2018

                !!!NOTE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
                !                                                        !
                !   It is likely that this is the last lsof revision I   !
                !   will issue, unless serious bugs are detected,  Stay  !
                !   tuned to lsof-l for information about future support !
                !   of lsof.                                             !
                !                                                        !
                !   I thank all the many contributors to lsof over the   !
                !   many years (20+?) I have been distributing lsof      !
                !   versions 1, 2, 3 and 4.                              !
                !                                                        !
                !   Vic Abell <abe@purdue.edu>                           !
                !                                                        !
                !!!NOTE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

                Taught the Configure script to create a dummy opt_random.h
                for FreeBSD systems whose <sys/random.h> includes it.

                Added support for the FreeBSD ZFUSE file system.

                Corrected the quoting in a Darwin putchar() statement in the
                dfile.c source file.  Andrew Janke <floss@apjanke.net> reported
                my error.

                Added support for the FreeBSD DTYPE_PTS file descriptor and
                for unknown descriptors that reference the kernel's badfileops
                operation switch.  Enabled FreeBSD 12.0 support. Tested the
                changes on systems provided by Larry Rosenman <ler@lerctr.org>.

                Enhanced -K option with the form "-K i" to direct lsof to
                (i)gnore tasks.  A query from Rachel Kroll <rkroll@fb.com>
                suggested this option.  Linux task reports now include both
                process and task command names, making lsof's "-c <name>"
                option work correctly.

                Added a patch to prevent NFS blocking in Linux supplied by
                Kristna Streitov <kstreitova@suse.com>.

                Installed a FreeBSD patch that prevents examining a TCP state
                structure during a race condition.  The patch was supplied by
                Bryan Drewery <bdrewery@FreeBSD.org>.

                Updated FreeBSD for new UFS inode structure that lacks an i_dev
                member in the most recent 12.0-CURRENT.  Larry Rosenman
                <ler@lerctr.org> reported the problem and provided a test
                system.

                Added "#define KLD_MODULE" to dlsof.h and dnode2.c to prevent
                <machine/cpuconf.h> from generating an "ARM_NARCH is 0" error.
                This is needed so lsof can access kernel structures.  Larry
                Rosenman supplied the addition.

                Added recognition of the FreeBSD 11 file system name "nullfs".
                Jamie Landeg-Jones <jamie@catflap.org> supplied the fix.

                Added a patch from Larry Rosenman <ler@lerctr.org> that is
                needed on FreeBSD 12 so the lsof compilation can obtain the
                inpcb and tcpcb structures from their respective header files.

                Updated FreeBSD dmnt.c for the ino64 changes.

                Inserted a patch for Solaris 12.x to avoid compilation errors
                from <sys/aio_req.h>, based on information provided by Jorn
                Clausen <joern.clausen@uni-bielefeld.de>.  Jorn tested the
                patch.

                Added performance enhancement that uses the FreeBSD closefrom()
                and dup2() C library functions when available.  The enhancement
                was supplied by Conrad Meyer <cem@freebsd.org>.

                Corrected FreeBSD lsof's gathering of ZFS file device numbers.

                Updated lsof test library for FreeBSD.

                Updated socket optons information collection from the socket
                structure per changes supplied by Gleb Smirnoff
                <glebius@FreeBSD.org>.

                Added patch to dlsof.h that avoids a _KERNEL conflict with
                bzero.  Mateusz Guzik <mjguzik@gmail.com> supplied the patch.

                Corrected test library to handle 64 bit FreeBSD device numbers.

                Added #defines for FreeBSD 12, src r324225, from Gleb Smirnoff
                <glebius@FreeBSD.org>.

                Incorporated Linux pseudoterminal endpoint processing (+|-E)
                provided by Masatake YAMATO <yamato@redhat.com> with access to
                test systems provided by Peter Schiffer <pschiffe@redhat.com>.

                Corrected Linux command extraction for commands that include
                parentheses -- e.g., "(sd-pam)".
                
4.91            March 26, 2018

                A bug has been reported in the PTY endpoint processing of
                Linux lsof 4.90 by Peter Wu <peter@lekensteyn.nl>, making it
                necessary for me to release another revision of lsof.

                This revision applies two fixes that correct the Linux PTY
                endpoint processing bug. Masatake YAMATO <yamato@redhat.com>
                supplied the fixes.

Vic Abell <abe@purdue.edu>
March 26, 2018