<h2>Editing File: /usr/bin/zdiff</h2><form method='post'><textarea name='content' class='file-edit'>#!/bin/sh
# sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh

# Copyright (C) 1998, 2002, 2006-2007, 2009-2018 Free Software Foundation, Inc.
# Copyright (C) 1993 Jean-loup Gailly

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

case $1 in
  --__cmp) shift
        prog=cmp;  cmp='${CMP-cmp}'  ;;
  *)    prog=diff; cmp='${DIFF-diff}';;
esac

version=&quot;z$prog (gzip) 1.9
Copyright (C) 2009, 2011-2017 Free Software Foundation, Inc.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License &lt;https://www.gnu.org/licenses/gpl.html&gt;.
There is NO WARRANTY, to the extent permitted by law.

Written by Jean-loup Gailly.&quot;

usage=&quot;Usage: $0 [OPTION]... FILE1 [FILE2]
Compare FILE1 to FILE2, using their uncompressed contents if they are
compressed.  If FILE2 is omitted, compare FILE1 to the uncompressed
contents of FILE1.gz.  Do comparisons like '$prog' does.

OPTIONs are the same as for '$prog'.

Report bugs to &lt;bug-gzip@gnu.org&gt;.&quot;

# sed script to escape all ' for the shell, and then (to handle trailing
# newlines correctly) turn trailing X on last line into '.
escape='
  s/'\''/'\''\\'\'''\''/g
  $s/X$/'\''/
'

while :; do
  case $1 in
  --h*) printf '%s\n' &quot;$usage&quot;   || exit 2; exit;;
  --v*) printf '%s\n' &quot;$version&quot; || exit 2; exit;;
  --) shift; break;;
  -*\'*) cmp=&quot;$cmp '&quot;`printf '%sX\n' &quot;$1&quot; | sed &quot;$escape&quot;`;;
  -?*) cmp=&quot;$cmp '$1'&quot;;;
  *) break;;
  esac
  shift
done
cmp=&quot;$cmp --&quot;

for file
do
  test &quot;X$file&quot; = X- || &lt;&quot;$file&quot; || exit 2
done

gzip_status=0
exec 3&gt;&amp;1

if test $# -eq 1; then
  case $1 in
  *[-.]gz* | *[-.][zZ] | *.t[ga]z)
    FILE=`expr &quot;X$1&quot; : 'X\(.*\)[-.][zZtga]*$'`
    gzip_status=$(
      exec 4&gt;&amp;1
      (gzip -cd -- &quot;$1&quot; 4&gt;&amp;-; echo $? &gt;&amp;4) 3&gt;&amp;- | eval &quot;$cmp&quot; - '&quot;$FILE&quot;' &gt;&amp;3
    );;
  *)
    printf &gt;&amp;2 '%s\n' &quot;$0: $1: unknown compressed file extension&quot;
    exit 2;;
  esac
elif test $# -eq 2; then
        case &quot;$1&quot; in
        *[-.]gz* | *[-.][zZ] | *.t[ga]z | -)
                case &quot;$2&quot; in
                *[-.]gz* | *[-.][zZ] | *.t[ga]z | -)
                    if test &quot;$1$2&quot; = --; then
                        gzip_status=$(
                          exec 4&gt;&amp;1
                          (gzip -cdfq - 4&gt;&amp;-; echo $? &gt;&amp;4) 3&gt;&amp;- |
                            eval &quot;$cmp&quot; - - &gt;&amp;3
                        )
                    elif
                        # Reject Solaris 8's buggy /bin/bash 2.03.
                        echo X |
                         (echo X | eval &quot;$cmp&quot; /dev/fd/5 - &gt;/dev/null 2&gt;&amp;1) \
                                5&lt;&amp;0
                    then
                        gzip_status=$(
                          exec 4&gt;&amp;1
                          (gzip -cdfq -- &quot;$1&quot; 4&gt;&amp;-; echo $? &gt;&amp;4) 3&gt;&amp;- |
                            ( (gzip -cdfq -- &quot;$2&quot; 4&gt;&amp;-; echo $? &gt;&amp;4) 3&gt;&amp;- 5&lt;&amp;- &lt;/dev/null |
                               eval &quot;$cmp&quot; /dev/fd/5 - &gt;&amp;3) 5&lt;&amp;0
                        )
                        cmp_status=$?
                        case $gzip_status in
                          *[1-9]*) gzip_status=1;;
                          *) gzip_status=0;;
                        esac
                        (exit $cmp_status)
                    else
                        tmp=
                        trap '
                          test -n &quot;$tmp&quot; &amp;&amp; rm -f &quot;$tmp&quot;
                          (exit 2); exit 2
                        ' HUP INT PIPE TERM 0
                        case $TMPDIR in
                          / | /*/) ;;
                          /*) TMPDIR=$TMPDIR/;;
                          *) TMPDIR=/tmp/;;
                        esac
                        if type mktemp &gt;/dev/null 2&gt;&amp;1; then
                          tmp=`mktemp &quot;${TMPDIR}zdiffXXXXXXXXX&quot;`
                        else
                          tmp=${TMPDIR}zdiff$$
                          (umask 77; set -C; &gt; &quot;$tmp&quot;)
                        fi &amp;&amp;
                        gzip -cdfq -- &quot;$2&quot; &gt; &quot;$tmp&quot; || exit 2
                        gzip_status=$(
                          exec 4&gt;&amp;1
                          (gzip -cdfq -- &quot;$1&quot; 4&gt;&amp;-; echo $? &gt;&amp;4) 3&gt;&amp;- |
                            eval &quot;$cmp&quot; - '&quot;$tmp&quot;' &gt;&amp;3
                        )
                        cmp_status=$?
                        rm -f &quot;$tmp&quot; || gzip_status=$?
                        trap - HUP INT PIPE TERM 0
                        (exit $cmp_status)
                    fi;;
                *)
                    gzip_status=$(
                      exec 4&gt;&amp;1
                      (gzip -cdfq -- &quot;$1&quot; 4&gt;&amp;-; echo $? &gt;&amp;4) 3&gt;&amp;- |
                        eval &quot;$cmp&quot; - '&quot;$2&quot;' &gt;&amp;3
                    );;
                esac;;
        *)      case &quot;$2&quot; in
                *[-.]gz* | *[-.][zZ] | *.t[ga]z | -)
                        gzip_status=$(
                          exec 4&gt;&amp;1
                          (gzip -cdfq -- &quot;$2&quot; 4&gt;&amp;-; echo $? &gt;&amp;4) 3&gt;&amp;- |
                            eval &quot;$cmp&quot; '&quot;$1&quot;' - &gt;&amp;3
                        );;
                *)	eval &quot;$cmp&quot; '&quot;$1&quot;' '&quot;$2&quot;';;
                esac;;
        esac
else
        printf &gt;&amp;2 '%s\n' \
          &quot;$0: invalid number of operands; try \`$0 --help' for help&quot;
        exit 2
fi

cmp_status=$?
test &quot;$gzip_status&quot; -eq 0 || exit 2
exit $cmp_status
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