OpenPKG Specs: openpkg/man.sh@0ba300bdf30a (annotated)

openpkg/man.sh@0ba300bdf30a (annotated)

openpkg/man.sh

Mon, 20 Apr 2009 19:22:00 +0200

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Mon, 20 Apr 2009 19:22:00 +0200
changeset 178: 0ba300bdf30a
child 428: f880f219c566
permissions: -rw-r--r--

Change unfortunate but partly useful overreaching security tradeoff.
The principle of allocating each running process an individual system
user and group can have security benefits, however maintining a plethora
of users, groups, processes, file modes, file permissions, and even
nonportable file ACLs on a host serving from a hundred processes has
some security disadvantages. This tradeoff is even worse for systems
like OpenPKG which benefit from administration transparency through the
use of minimal system intrusion and only three usage privilege levels.

 #!@l_prefix@/lib/openpkg/bash
 ##
 ##  man -- OpenPKG Tool Chain "man" command
 ##  Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/>
 ##  Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/>
 ##
 ##  Permission to use, copy, modify, and distribute this software for
 ##  any purpose with or without fee is hereby granted, provided that
 ##  the above copyright notice and this permission notice appear in all
 ##  copies.
 ##
 ##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 ##  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 ##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 ##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
 ##  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ##  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ##  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 ##  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 ##  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 ##  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 ##  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 ##  SUCH DAMAGE.
 ##
 #   configuration
 prefix="@l_prefix@"
 #   minimum command line parsing
 opt_h=no
 while [ 1 ]; do
     case "$1" in
         -h | --help ) opt_h=yes; shift ;;
         * ) break ;;
     esac
 done
 if [ ".$opt_h" = .yes ]; then
     echo "openpkg:man:USAGE: openpkg man [--help] [<section>] <command>"
     exit 0
 fi
 if [ $# -eq 1 ]; then
     man_page="$1"
 elif [ $# -eq 2 ]; then
     man_sect="$1"
     man_page="$2"
 else
     echo "openpkg:man:ERROR: invalid number of arguments" 1>&2
     exit 1
 fi
 #   determine path to commands
 openpkg_tools="${OPENPKG_TOOLS}"
 openpkg_tools_cmdpath="${OPENPKG_TOOLS_CMDPATH}"
 if [ ".${openpkg_tools}" != . -a ".${openpkg_tools_cmdpath}" = . ]; then
     openpkg_tools_cmdpath="${openpkg_tools}/cmd:@"
 fi
 cmdpath="${prefix}/libexec/openpkg"
 if [ -d "${prefix}/libexec/openpkg-tools" ]; then
     cmdpath="${prefix}/libexec/openpkg-tools:${cmdpath}"
 fi
 if [ -d "${prefix}/libexec/openpkg-audit" ]; then
     cmdpath="${prefix}/libexec/openpkg-audit:${cmdpath}"
 fi
 if [ ".${openpkg_tools_cmdpath}" != . ]; then
     cmdpath=`echo "${openpkg_tools_cmdpath}" | sed -e "s;@;${cmdpath};"`
 fi
 openpkg_tools_cmdpath=`echo "${cmdpath}" | sed -e 's/::/:/g' -e 's/^://' -e 's/:$//'`
 #   search for manual page in OpenPKG Tool Chain
 man_file=""
 man_type=""
 OIFS="$IFS"; IFS=":"
 for dir in ${openpkg_tools_cmdpath}; do
     IFS="$OIFS"
     for file in $dir/$man_page.${man_sect-"1"} $dir/$man_page.[1-9]; do
         if [ -f "$file" ]; then
             man_file="$file"
             man_type="roff"
             if [ ".$man_sect" = . ]; then
                 man_sect=`echo "$man_file" |\
                     sed -e 's;^;X;' -e 's;^X.*\.\([1-9]\)$;\1;' -e 's;^X.*;;'`
             fi
             break
         fi
     done
     if [ ".$man_type" = . ]; then
         for file in $dir/$man_page.pod $dir/$man_page.pl $dir/$man_page.sh; do
             if [ -f "$file" ]; then
                 if [ ".`grep '^=pod' $file`" != . ]; then
                     man_file="$file"
                     man_type="pod"
                     break
                 fi
             fi
         done
     fi
     if [ ".$man_type" != . ]; then
         break
     fi
 done
 IFS="$OIFS"
 if [ ".$man_type" != . ]; then
     #   determine POD to Roff converter
     pod2roff=""
     if [ ".$man_type" = .pod ]; then
         pod2roff=`$prefix/lib/openpkg/shtool path -p "$prefix/bin:$PATH" pod2man`
         if [ ".$pod2roff" = . ]; then
             echo "openpkg:man:ERROR: unable to find POD to Roff converter (pod2man)" 1>&2
             exit 1
         fi
         if [ ".$man_sect" = . ]; then
             man_sect=1
         fi
         pod2roff="$pod2roff --section=${man_sect}"
         pod2roff="$pod2roff --release=\"$man_page(${man_sect})\""
         pod2roff="$pod2roff --center=OpenPKG --date=OpenPKG"
         pod2roff="$pod2roff --quotes=none"
     fi
     #   determine Roff to ASCII converter
     roff2ascii=`$prefix/lib/openpkg/shtool path -p "$prefix/bin:$PATH" nroff groff`
     if [ ".$roff2ascii" = . ]; then
         echo "openpkg:man:ERROR: unable to find Roff to ASCII converter (nroff, groff)" 1>&2
         exit 1
     fi
     roff2ascii="$roff2ascii -man"
     case "$roff2ascii" in
         */groff ) roff2ascii="$roff2ascii -Tascii" ;;
     esac
     #   determine pager
     pager="$PAGER"
     if [ ".$pager" = . ]; then
         pager=`$prefix/lib/openpkg/shtool path -p "$prefix/bin:$PATH" less more cat`
     fi
     if [ ".$pager" = . ]; then
         echo "openpkg:man:ERROR: unable to find text viewer ($PAGER, less, more, cat)" 1>&2
         exit 1
     fi
     #   render the manual page to the TTY
     if [ ".$man_type" = .roff ]; then
         eval "$roff2ascii $man_file | $pager"
     elif [ ".$man_type" = .pod ]; then
         eval "$pod2roff $man_file | $roff2ascii | $pager"
     fi
     exit 0
 fi
 #   fallback to the man(1) command
 MANPATH="$prefix/man:$prefix/local/man:${MANPATH-/usr/man}:/usr/man:/usr/share/man"
 export MANPATH
 eval "exec man $man_sect $man_page"

OpenPKG Specs / annotate

openpkg/man.sh@0ba300bdf30a (annotated)

openpkg/man.sh