For more recent changes, see the Perl Changes* file(s).Change 173 on 1998/07/14 by <gbarr@pobox.com> (Graham Barr)	IO::Socket	- Added method connected		IO.xs	- Added check that file * is not null		t/io_udp.t	- Added check for connected	- Made change to catch recv not returning the address, and added a fix to	  ensure test does not hang		t/io_sock.t	- Added check for connected.Change 137 on 1998/05/21 by <gbarr@pobox.com> (Graham Barr)	IO::Socket::INET	- Added checks to all peer* and host* methods for undefChange 134 on 1998/05/09 by <gbarr@pobox.com> (Graham Barr)	t/io_sock.t	- fix race condition on Solaris & SunOS		IO::Handle	- Applied patch from Gisle Aas <gisle@aas.no> for	    documentation update	- Applied patch from Kuma <tgy@chocobo.org>	    changed input_line_number to be on a per-handle basis.		IO::File	- Applied patch from Gisle Aas <gisle@aas.no> for	    documentation update		IO::Seekable	- Applied patch from Gisle Aas <gisle@aas.no> for	    documentation update	    added sysseek		IO, IO::Socket::INET	- documentation update		IO.xs	- Applied patch from Gisle Aas <gisle@aas.no> for	   blockingChange 133 on 1998/05/09 by <gbarr@pobox.com> (Graham Barr)	t/io_sock.t	- Added checks for blocking()Sun Apr 12 1998 <gbarr@pobox.com> (Graham Barr)	IO.xs	- enclosed newCONSTSUB in #ifdef as _64 now defines it.Thu Mar 19 1998 <gbarr@pobox.com> (Graham Barr)	All	- Changed copyright/distribution policy back to be the same as perlSun Feb 15 1998 <gbarr@pobox.com> (Graham Barr)	IO::Socket	- Fix to ->accept, accept() returns false on error not undef.*** Release 1.19Thu Feb  5 1998 <gbarr@pobox.com> (Graham Barr)	All	- change copyright notice		IO::Socket::INET	- changed configure to accept PeerHost and LocalHost as well as the	  PeerAddr and LocalAddr arguments.Mon Feb  2 1998 <gbarr@pobox.com> (Graham Barr)	IO::Handle	- Added printflush so that flush.pl can be depreciated	IO::Socket	- Remove C<use Config> statement as it was not neededTue Jan 27 1998 <gbarr@pobox.com> (Graham Barr)	IO::Socket::INET	- removed carp if $^W*** Patch 1.1804Sat Jan 17 1998 <gbarr@pobox.com> (Graham Barr)	t/io_sock.t	- Replaced C<Listen => 0> with C<LocalAddr => 'localhost'>		IO/Socket/INET.pm	- Modified the MultiHomed code. Now each address for a given host has	  a timeout of C<Timeout>.	- added _get_addr method for doing hostname lookups. Now Net::DNS can be	  use by sub-classing IO::Socket::INET, Thanks Gisle Aas		t/io_multihomed.t	- new test added. Thanks Gisle Aas.*** Patch 1.1803Mon Nov 17 1997 <gbarr@pobox.com> (Graham Barr)	poll.c	- Added #ifdef I_* tests		IO::Socket	- Changed initialization of @domain2pkg to fix problem of Domain option	  not working	- Added patch for multi-homed hosts, Thanks to Gisle Aas <gisle@aas.no>		IO::Socket::INET	- Change default proto to getprotobyname instead of 'tcp' constant string	- Added patch for multi-homed hosts, Thanks to Gisle Aas <gisle@aas.no>		t/io_sock.t	- Change to test fix for Domain problem fixed in IO::Socket and be	  more comprehensive, Thanks to Gisle Aas <gisle@aas.no>		t/io_unix.t	- New test, Thanks to Gisle Aas <gisle@aas.no>*** Patch 1.1802Wed Nov 12 1997 <gbarr@pobox.com> (Graham Barr)	t/io_poll.t	- test 4 made an assumption that was not portable, fixed.*** Patch 1.1801Wed Oct 22 1997 <gbarr@pobox.com> (Graham Barr)	IO.xs	- change #ifdef's to allow compilation with 5.002		IO::Socket	- Fix to ensure that socket is not returned as non-blocking	  unless the user asks for it	t/io_udp.t	- Fix to stop endless loop*** Release 1.18Mon Oct 13 1997 <gbarr@pobox.com> (Graham Barr)	IO.xs, IO::Handle	- 1.17 broke compatability with 5.003, small tweaks to restore	  compatability		t/io_const.t	- Added new test to ensure backwards compatability with constants	  is not brokenWed Oct  8 1997 <gbarr@pobox.com> (Graham Barr)	IO.xs	- Added #define's to cope with argument changes to start_subparse	  from 5.003_22, _23 and _24		IO::Select	- Renamed has_error to be has_exception which is more correct,	  has_error is a wrapper around has_exception with a warning if	  $^W is set.		Makefile.PL	- Remove 'linkext' option to WriteMakefile so that static linking	  should work properly, cannot remember why I added it.Sun Oct  5 1997 <gbarr@pobox.com> (Graham Barr)	IO::Pipe	- GLOB assignment does not copy the fileno while under -T	  added checks for undefined fileno, and added fdopen	- reader and write can now be called as static methods	Makefile.PL	- Attempt to locate <poll.h> and define I_POLL if found*** Release 1.17Fri Sep 26 1997 <gbarr@pobox.com> (Graham Barr)	IO.xs	- Fix bug in _poll for ANSI C compilers		IO::Socket	- Split IO::Socket::INET and IO::Socket::UNIX into separate files		IO::File	- Patch to open() for when file is in current directory.*** Release 1.16Mon 15 Sep 1997 <gbarr@pobox.com> Graham Barr	o New modules	  - IO::Dir	  - IO::Poll	o IO::Socket	  - Changed new to call autoflush on the new socket	  - IO::Socket::INET->new now accepts a single argument	  - IO::Socket::INET default to protocol 'tcp'		o IO::File	  - Added doc for new_tmpfile		o IO::Handle	  - Removed use of AutoLoader for constants, constants are	    now defined as constant XS subs	  - Added fsync, but will not be avaliable for use	    unless HAS_FSYNC is defined, perls configure does not define	    this yet.	  - Moved bootstrap of IO.xs to IO.pm. IO::Handle no longer	    contains an AUTOLOAD sub in it's ISA hier	o IO::Seekable	  - Remove clearerr, as it is defined in IO.xs	o IO.xs	  - Patched IO.xs with patch from Chip for setvbuf warning	  - Added XS sub "constant" for backwards compatability	o Misc	  - Fixed IO::Socket::configure, it was not passing $arg to domain	    specific package	  - Changed all $fh variables in IO::Handle to $io and all $fh	    variables in IO::Socket to $sock as Chip suggested	  - Fixed usage messages to be consistant*** Release 1.15Sun 19 Jan 1997 <bodg@tiuk.ti.com> Graham Barr	o Updated PODs for IO::Handle and IO::File	o Modified IO.xs so that DESTROY gets called on IO::File	  objects that were created with IO::File->new_tmpfile	o Modified the domain2pkg code in IO::Socket so that it	  does not use blessd refs	o Created a new package IO::Pipe::End so that pipe specific	  stuff can be moved out of IO::Handle.	o Added Ilya's OS/2 changes to Pipe.pm and io_pipe.t	o These changes happened somtime before the release of 1.15	  - added shutdown to IO::Socket	  - modified connect to not use alarm	  - modified accept and connect to use IO::Select*** Release 1.14Tue 24 Dec 1996 <bodg@tiuk.ti.com> Graham Barr	o Updated to patches in perl core dist.	o Added C<use strict> to all modules	o Modified t/io_sock.t, hopefully the race condition has gone	o Added close statements to reader/writer in IO::Pipe	o IO::Handle::syswrite was calling sysread, fixed :-)*** Release 1.12Thu 19 Sep 1996 <bodg@tiuk.ti.com> Graham Barr	o Modified IO.xs so that it will compile with pre perlio version	  of perl (ie pre perl5.003_02)	o Modified IO::Socket::send so not to pass 4 arguments to send	  if the socket is connected*** Release 1.10Mon 11 Sep 1996 <bodg@tiuk.ti.com> Graham Barr	o Fixed a bug in IO::Socket which caused DESTROY to be called	  on a partly initialised connection	o Changed IO.xs to use Perlio	o Modified usage message to report correct package	o Added IO::File::new changes from Chip, to allow PERM to be passed	o Added sysread and syswrite methods to IO::Handle	o Updated documentation	o Fixed a bug in IO::Select that caused a hang if the last handle	  was removed.	o Added count method to IO::Select	o Renamed and modified tests so that they can be copied into the	  perl distribution	o Added fcntl and ioctl methods to IO::HandleThu 25 Jul 1996 <bodg@tiuk.ti.com> Graham Barr	o It is now not necessary to call the domain sub-classes of	  IO::Socket. when connect is called it notes the domain.	  Domain specific methods, which are normally non-critical, are	  called via this note-ing.	o Added methods to IO::Socket to retrieve the domain, type and	  protocol of a given socketTue 23 Jul 1996 <bodg@tiuk.ti.com> Graham Barr	o IO::Socket::connect changed how we do timeouts, as it did not work	o IO::Handle::new_from_fd removed method call to _ref_fd, which was	  a leftover from FileHandleFri 28 Jun 1996 <bodg@tiuk.ti.com> Graham Barr	o Modified IO::Socket::UNIX::configure to default to using a socket	  type of SOCK_STREAM if no type is specified.