README.mpeix - Perl/iX for HP e3000 MPE

- NAME
- What's New
- System Requirements
- How to Obtain Perl/iX
- Distribution Contents Highlights
- Getting Started with Perl/iX
- MPE/iX Implementation Considerations
- Change History

# NAME

README.mpeix - Perl/iX for HP e3000 MPE

    =head1 SYNOPSIS

       http://www.bixby.org/mark/perlix.html
       Perl language for MPE
       Last updated June 2, 2000 @ 0400 UTC

    =head1 NOTE

This is a podified version of the above-mentioned web page, podified by Jarkko Hietaniemi 2001-Jan-01.

# What's New

June 1, 2000

    =over 4

- Rebuilt to be compatible with mod_perl. If you plan on using mod_perl, you MUST download and install this version of Perl/iX!

      =item *

  bincompat5005=``undef'': sorry, but you will have to recompile any binary 5.005 extensions that you may be using (if any; there is no 5.005 code in what you download from bixby.org) uselargefiles=``undef'': not available in MPE for POSIX files yet.

      =item *

  Now bundled with various add-on packages:

  - libnet (http://www.gbarr.demon.co.uk/libnet/FAQ.html)

  - libwww-perl (LWP) which lets Perl programs behave like web browsers:

            1. #!/PERL/PUB/perl
            2. use LWP::Simple;
            3. $doc = get('http://www.bixby.org/mark/perlix.html');  # reads the
               web page into variable $doc

        (http://www.bixby.org/mark/perlix.html)

  - mod_perl (just the perl portion; the actual DSO will be released soon with Apache/iX 1.3.12 from bixby.org). This module allows you to write high performance persistent Perl CGI scripts and all sorts of cool things. (http://perl.apache.org/)

        and much much more hiding under /PERL/PUB/.cpan/

        =item *

    The CPAN module now works for automatic downloading and installing of add-on packages:

            1. export FTP_PASSIVE=1
            2. perl -MCPAN -e shell
            3. Ignore any terminal I/O related complaints!

        (http://theoryx5.uwinnipeg.ca/CPAN/data/perl/CPAN.html)

May 20, 2000

- Updated to version 5.6.0. Builds straight out of the box on MPE/iX.

- Perl's `getpwnam()` function which had regressed to being unimplemented on MPE is now implemented once again.

      =back

  September 17, 1999

  - Migrated from cccd.edu to bixby.org.

      =head1 Welcome

  This is the official home page for the HP e3000 MPE/iX (http://www.businessservers.hp.com/) port of the Perl scripting language (http://www.perl.com/) which gives you all of the power of C, awk, sed, and sh in a single language. Check here for the latest news, implemented functionality, known bugs, to-do list, etc. Status reports about major milestones will also be posted to the HP3000-L mailing list (http://www.lsoft.com/scripts/wl.exe?SL1=HP3000-L&H=RAVEN.UTC.EDU) and its associated gatewayed newsgroup comp.sys.hp.mpe.

      I'm doing this port because I can't live without Perl on the Unix
      machines that I administer, and I want to have the same power
      available to me on MPE.

      Please send your comments, questions, and bug reports directly to me,
      Mark Bixby (http://www.bixby.org/mark/), by e-mailing to
      mark@bixby.org. Or just post them to HP3000-L.

      The platform I'm using to do this port is an HP 3000 957RX running
      MPE/iX 6.0 and using the GNU gcc C compiler
      (http://jazz.external.hp.com/src/gnu/gnuframe.html).

      The combined porting wisdom from all of my ports can be found in my
      MPE/iX Porting Guide (http://www.bixby.org/mark/porting.html).

      IMPORTANT NOTICE: Yes, I do work for the HP CSY R&D lab, but ALL of
      the software you download from bixby.org is my personal freeware that
      is NOT supported by HP.

# System Requirements

- MPE/iX 5.5 or later. This version of Perl/iX does NOT run on MPE/iX 5.0 or earlier, nor does it run on ``classic'' MPE/V machines.

- If you wish to recompile Perl, you must install both GNUCORE and GNUGCC from jazz (http://jazz.external.hp.com/src/gnu/gnuframe.html).

- Perl/iX will be happier on MPE/iX 5.5 if you install the MPEKX40B extended POSIX filename characters patch, but this is optional.

- Patch LBCJXT6A is required on MPE/iX 5.5 machines in order to prevent Perl/iX from dying with an unresolved external reference to _getenv_libc.

- If you will be compiling Perl/iX yourself, you will also need Syslog/iX (http://www.bixby.org/mark/syslogix.html) and the /BIND/PUB/include and /BIND/PUB/lib portions of BIND/iX (http://www.bixby.org/mark/bindix.html).

# How to Obtain Perl/iX

1. Download Perl using either FTP.ARPA.SYS or some other client

2. Extract the installation script

3. Edit the installation script

4. Run the installation script

5. Convert your *.a system archive libraries to *.sl shared libraries

       =back

   Download Perl using FTP.ARPA.SYS from your HP 3000 (the preferred method).....

           :HELLO MANAGER.SYS
           :XEQ FTP.ARPA.SYS
           open ftp.bixby.org
           anonymous
           your@email.address
           bytestream
           cd /pub/mpe
           get perl-5.6.0-mpe.tar.Z /tmp/perl.tar.Z;disc=2147483647
           exit

   .....Or download using some other generic web or ftp client (the alternate method)

       Download the following files (make sure that you use "binary mode" or
       whatever client feature that is 8-bit clean):

   - Perl from

             http://www.bixby.org/ftp/pub/mpe/perl-5.6.0-mpe.tar.Z

     or

             ftp://ftp.bixby.org/pub/mpe/perl-5.6.0-mpe.tar.Z

         =item *

     Upload those files to your HP 3000 in an 8-bit clean bytestream manner to:

             /tmp/perl.tar.Z

         =item *

     Then extract the installation script (after both download methods)

             :CHDIR /tmp
             :XEQ TAR.HPBIN.SYS 'xvfopz /tmp/perl.tar.Z INSTALL'

   - Edit the installation script

         Examine the accounting structure creation commands and modify if
         necessary (adding additional capabilities, choosing a non-system
         volume set, etc).

             :XEQ VI.HPBIN.SYS /tmp/INSTALL

   - Run the installation script.

         The accounting structure will be created and then all files will be
         extracted from the archive.

             :XEQ SH.HPBIN.SYS /tmp/INSTALL

   - Convert your *.a system archive libraries to *.sl shared libraries

         You only have to do this ONCE on your MPE/iX 5.5 machine in order to
         convert /lib/lib*.a and /usr/lib/lib*.a libraries to their *.sl
         equivalents.  This step should not be necessary on MPE/iX 6.0 or later
         machines because the 6.0 or later update process does it for you.

             :XEQ SH.HPBIN.SYS /PERL/PUB/LIBSHP3K

# Distribution Contents Highlights

README
  The file you're reading now.

      =item INSTALL

  Perl/iX Installation script.

      =item LIBSHP3K

  Script to convert *.a system archive libraries to *.sl shared libraries.

      =item PERL

  Perl NMPRG executable. A version-numbered backup copy also exists. You might wish to ``ln -s /PERL/PUB/PERL /usr/local/bin/perl''.

      =item .cpan/

  Much add-on source code downloaded with the CPAN module.

      =item lib/

  Perl libraries, both core and add-on.

      =item man/

  Perl man page documentation.

public_html/feedback.cgi
  Sample feedback CGI form written in Perl.

      =item src/perl-5.6.0-mpe

  Source code.

    =head1 How to Compile Perl/iX

1. cd src/perl-5.6.0-mpe

2. Read the INSTALL file for the official instructions

3. ./Configure -d

4. make

5. ./mpeix/relink

6. make test (expect approximately 15 out of 11306 subtests to fail, mostly due to MPE not supporting hard links, UDP socket problems, and handling `exit()` return codes improperly)

7. make install

8. Optionally create symbolic links that point to the Perl executable, i.e. ln -s /PERL/PUB/PERL /usr/local/bin/perl

       =back

   The summary test results from ``cd t; ./perl -I../lib harness'':

         Failed Test  Status Wstat Total Fail  Failed  List of failed
         ---------------------------------------------------------------------------
         io/fs.t                      29    8  27.59%  2-5, 7-9, 11
         io/openpid.t                 10    1  10.00%  7
         lib/io_sock.t                14    1   7.14%  13
         lib/io_udp.t                  7    2  28.57%  3, 5
         lib/posix.t                  27    1   3.70%  12
         op/lex_assign.t             187    1   0.53%  13
         op/stat.t                    58    1   1.72%  3
         15 tests and 94 subtests skipped.
         Failed 7/236 test scripts, 97.03% okay. 15/11306 subtests failed, 99.87% okay.

# Getting Started with Perl/iX

Create your Perl script files with ``#!/PERL/PUB/perl'' (or an equivalent symbolic link) as the first line. Use the chmod command to make sure that your script has execute permission. Run your script!

    Be sure to take a look at the CPAN module list
    (http://www.cpan.org/CPAN.html). A wide variety of free Perl software
    is available.  You can automatically download these packages by using
    the CPAN module (http://theoryx5.uwinnipeg.ca/CPAN/data/perl/CPAN.html).

# MPE/iX Implementation Considerations

There some minor functionality issues to be aware of when comparing Perl for Unix (Perl/UX) to Perl/iX:

- MPE gcc/ld doesn't properly support linking NMPRG executables against NMXL dynamic libraries, so you must manually run mpeix/relink after each re-build of Perl.

- Perl/iX File::Copy will use MPE's /bin/cp command to copy files by name in order to preserve file attributes like file code.

- MPE (and thus Perl/iX) lacks support for setgrent(), endgrent(), setpwent(), endpwent().

- MPE (and thus Perl/iX) lacks support for hard links.

- MPE requires `GETPRIVMODE()` in order to `bind()` to ports less than 1024. Perl/iX will call `GETPRIVMODE()` automatically on your behalf if you attempt to `bind()` to these low-numbered ports. Note that the Perl/iX executable and the PERL account do not normally have CAP=PM, so if you will be bind()-ing to these privileged ports, you will manually need to add PM capability as appropriate.

- MPE requires that you `bind()` to an IP address of zero. Perl/iX automatically replaces the IP address that you pass to `bind()` with a zero.

- If you use Perl/iX `fcntl()` against a socket it will fail, because MPE requires that you use `sfcntl()` instead. Perl/iX does not presently support sfcntl().

- MPE requires `GETPRIVMODE()` in order to setuid(). There are too many calls to `setuid()` within Perl/iX, so I have not attempted an automatic `GETPRIVMODE()` solution similar to bind().

    =head1 Known Bugs Under Investigation

None.

    =head1 To-Do List

- Make `setuid()/setgid()` support work.

- Make sure that `fcntl()` against a socket descriptor is redirected to sfcntl().

- Add support for Berkeley DB once I've finished porting Berkeley DB.

- Write an MPE XS extension library containing miscellaneous important MPE functions like GETPRIVMODE(), GETUSERMODE(), and sfcntl().

      =back

# Change History

May 6, 1999

    =over 4

- Patch LBCJXT6A is required on MPE/iX 5.5 machines in order to prevent Perl/iX from dying with an unresolved external reference to _getenv_libc.

      =back

  April 7, 1999

  - Updated to version 5.005_03.

  - The official source distribution once again compiles ``straight out of the box'' for MPE.

  - The current incarnation of the 5.5 POSIX filename extended characters patch is now MPEKX40B.

  - The LIBSHP3K *.a -> *.sl library conversion script is now included as /PERL/PUB/LIBSHP3K.

        =back

    November 20, 1998

    - Updated to version 5.005_02.

    - Fixed a DynaLoader bug that was unable to load symbols from relative path name libraries.

    - Fixed a .xs compilation bug where the mpeixish.sh include file wasn't being installed into the proper directory.

    - All bugfixes will be submitted back to the official Perl developers.

    - The current incarnation of the POSIX filename extended characters patch is now MPEKXJ3A.

          =back

          August 14, 1998

      - The previous POSIX filename extended characters patch MPEKX44C has been superseded by MPEKXB5A.

            =back

            August 7, 1998

        - The previous POSIX filename extended characters patch MPEKX76A has been superseded by MPEKX44C.

              =over 4

            July 28, 1998

      - Updated to version 5.005_01.

            =back

            July 23, 1998

        - Updated to version 5.005 (production release). The public freeware sources are now 100% MPE-ready ``straight out of the box''.

              =back

              July 17, 1998

          - Updated to version 5.005b1 (public beta release). The public freeware sources are now 99.9% MPE-ready. By installing and testing this beta on your own HP3000, you will be helping to insure that the final release of 5.005 will be 100% MPE-ready and 100% bug free.

          - My MPE binary release is now extracted using my standard INSTALL script.

                =back

                July 15, 1998

            - Changed startperl to #!/PERL/PUB/perl so that Perl will recognize scripts more easily and efficiently.

                  =back

                  July 8, 1998

              - Updated to version 5.004_70 (internal developer release) which is now MPE-ready. The next public freeware release of Perl should compile ``straight out of the box'' on MPE. Note that this version of Perl/iX was strictly internal to me and never publicly released. Note that [21]BIND/iX is now required (well, the include files and libbind.a) if you wish to compile Perl/iX.

                    =back

                    November 6, 1997

                - Updated to version 5.004_04. No changes in MPE-specific functionality.

                      =back

                      October 16, 1997

                  - Added Demos section to the Perl/iX home page so you can see some sample Perl applications running on my 3000.

                        =back

                        October 3, 1997

                    - Added System Requirements section to the Perl/iX home page just so the prerequisites stand out more. Various other home page tweaks.

                          =back

                          October 2, 1997

                      - Initial public release.

                            =back

                            September 1997

                        - Porting begins.

                            =head1 Author

                            Mark Bixby, mark@bixby.org

                        README.mpeix - Perl/iX for HP e3000 MPE