Version 0.4.X
      A quite small bug was detected. But to fix this bug meant to make
      this version incompatible with all minor versions.  pftp is now
      able to send/receive directories recursively.  pftp can send
      standard input on origin host to standard output on destination
      host.
Version 0.5.X
      Since the client reconnected to the server every time it sent a
      file, the whole program was revised in order to send all files /
      directories within the same connection.  The increase of velocity
      was incredible!  Next the mechanism of logging all errors has been
      included, a manual page was written, and hopefully all bugs have
      been fixed ;^)
      Option handling was much improved: now options may be given as you
      want as long as they are given behind the port number, if there is
      any, and before the host name, if there is any given by name and not
      by number.  Improvement of the interactive handling with existing
      files implied to deal with the tty modes.  Introducing a new feature:
      a resource file is read in, if it exists: The default port number is
      taken from the resource files, but can be overwritten with a given
      port number on command line.
Version 0.6.X
      The Makefile was then simplified: the Macro CDEF2=-DCTLC is now,
      hopefully correct, automaticly recognized.
      The source file system was rearranged in order to get a better
      overview.  Bug fixing.
      The buffer size is set to zero for standard input/output.  The
      listing was a little bit fastened using some vt100 compatible
      settings.  In order to have a little more security I introduce a
      mechanism that allows the server to accept specified clients
      only(see option '-c').
      This is the break through for pftp! pftp is now able to filter
      all files before sending them over the network, i.e. you may use
      a compression program or an encryption program or what ever you
      like. :)
      Adding the ability to send the rest of a file (see option '-o').
      Now pftp shows some statistic when files are received.
Version 0.7.X
      The server was modified in order to receive more than one file at
      once.  Since the server has to create a new subprocess for each
      connection the load average increased.  Thus made it necessary to
      find a more convenient way to handle it.  Introducing POSIX Threads
      was the best way.
      pftp is slightly faster than ftp--if compiled with USE_POSIX_THREAD
      and files are sent without a compression filter.  The socket buffer
      size is adjusted to each file before the file is sent--which
      increased the velocity once more and reduced the lack.
      Option `-b' controls the net buffer size manually when stdin is
      sent.  This increases the velocity when sending data from stdin.
      `-c' had a little bug when specifying multiple hosts.  This was
      fixed now.
      Ported pftp to FreeBSD.  By now pftp runs on many Un*xes like AIX,
      FreeBSD (new), IRIX, Linux, NEXTSTEP, SunOS and ULTRIX.
      Variables may also be set in the resource file after the first line
      and before the host name list.  All lines beginning with a hash
      or new line character are ignored now.
      Added some more error checking and fixed some bugs.  Since the
      statistical values were incorrect, there is now only an overall
      statistical output for a connection. 
      Option `-B' is an alias to `-b32767'.  Ported pftp to HP-UX.
      Added silent mode with `-q' which enables pftp to run out of shell
      skripts and the like.
Version 0.8.X
      Since normal ftp rarely offers a chance to transfer files
      compressed or encrypted and even not to transfer directories,  I
      added to pftp a capability to be started by inetd with `-i'.  pftp
      may also run as a daemon with `-d' started by a normal user or by
      root.  The destination directory and the filter programm if any is
      chosen by the client.  Files and directories may also be uploaded
      in a directory that is set by `PFTPRECEIVE' from any user with
      `-n'.  The maximum amount of bytes in that directory is given by
      `PFTPUPLIMIT'.  If `PFTPRECEIVE' is not set no data can be
      uploaded.
      The via `-n' uploaded files and directories may be saved with the
      simple pftp file and directory manager.  Also a message file and a
      subject line can be added to the files with the client.  The
      message file name can be given on command line or the file can
      interactively be edited with an editor specified by PFTPEDITOR.
      Files in the upload directory can be viewed with the internal pftp
      pager or an external pager specified by PFTPPAGER.
      The maximum package size can now manually be given with the
      variable PFTPNETBUF.
      Added optional sorting order within the pfm.  You may peek for new
      data in the upload directory with option `-N'.
      Ported pftp to unicos.  pftp was ported to OpenBSD (see CREDITS file).
      Bandwith may be set with `-W' given by variable PFTPBANDWID.
      Fixed a bug caused by an unreachable nameserver which resulted in
      segmentation fault.  Port to OSF1.
