tools/gpg-zip.in

   1 #!/bin/sh
   2
   3 # gpg-archive - gpg-ized tar using the same format as PGP's PGP Zip.
   4 # Copyright (C) 2005 Free Software Foundation, Inc.
   5 #
   6 # This file is part of GnuPG.
   7 #
   8 # GnuPG is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # GnuPG is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, see <http://www.gnu.org/licenses/>.
  20 # Despite the name, PGP Zip format is actually an OpenPGP-wrapped tar
  21 # file.  To be compatible with PGP itself, this must be a USTAR format
  22 # tar file.  Unclear on whether there is a distinction here between
  23 # the GNU or POSIX variant of USTAR.
  24
  25 VERSION=@VERSION@
  26 TAR=@TAR@
  27 GPG=gpg
  28
  29 usage="\
  30 Usage: gpg-zip [--help] [--version] [--encrypt] [--decrypt] [--symmetric]
  31        [--list-archive] [--output FILE] [--gpg GPG] [--gpg-args ARGS]
  32        [--tar TAR] [--tar-args ARGS] filename1 [filename2, ...]
  33        directory1 [directory2, ...]
  34
  35 Encrypt or sign files into an archive."
  36
  37 while test $# -gt 0 ; do
  38   case $1 in
  39     -h | --help | --h*)
  40       echo "$usage"
  41       exit 0
  42       ;;
  43     --list-archive)
  44       list=yes
  45       create=no
  46       unpack=no
  47       shift
  48       ;;
  49     --encrypt | -e)
  50       gpg_args="$gpg_args --encrypt"
  51       list=no
  52       create=yes
  53       unpack=no
  54       shift
  55       ;;
  56     --decrypt | -d)
  57       gpg_args="$gpg_args --decrypt"
  58       list=no
  59       create=no
  60       unpack=yes
  61       shift
  62       ;;
  63     --symmetric | -c)
  64       gpg_args="$gpg_args --symmetric"
  65       list=no
  66       create=yes
  67       unpack=no
  68       shift
  69       ;;
  70     --sign | -s)
  71       gpg_args="$gpg_args --sign"
  72       list=no
  73       create=yes
  74       unpack=no
  75       shift
  76       ;;
  77     --recipient | -r)
  78       gpg_args="$gpg_args --recipient $2"
  79       shift
  80       shift
  81       ;;
  82     --local-user | -u)
  83       gpg_args="$gpg_args --local-user $2"
  84       shift
  85       shift
  86       ;;
  87     --output | -o)
  88       gpg_args="$gpg_args --output $2"
  89       shift
  90       shift
  91       ;;
  92     --version)
  93       echo "gpg-zip (GnuPG) $VERSION"
  94       exit 0
  95       ;;
  96     --gpg)
  97       GPG=$1
  98       shift
  99       ;;
 100     --gpg-args)
 101       gpg_args="$gpg_args $2"
 102       shift
 103       shift
 104       ;;
 105     --tar)
 106       TAR=$1
 107       shift
 108       ;;
 109     --tar-args)
 110       tar_args="$tar_args $2"
 111       shift
 112       shift
 113       ;;
 114     --)
 115       shift
 116       break
 117       ;;
 118     -*)
 119       echo "$usage" 1>&2
 120       exit 1
 121       ;;
 122     *)
 123       break
 124       ;;
 125   esac
 126 done
 127
 128 if test x$create = xyes ; then
 129 #   echo "$TAR -cf - "$@" | $GPG --set-filename x.tar $gpg_args" 1>&2
 130    $TAR -cf - "$@" | $GPG --set-filename x.tar $gpg_args
 131 elif test x$list = xyes ; then
 132 #   echo "cat \"$1\" | $GPG $gpg_args | $TAR $tar_args -tf -" 1>&2
 133    cat "$1" | $GPG $gpg_args | $TAR $tar_args -tf -
 134 elif test x$unpack = xyes ; then
 135 #   echo "cat \"$1\" | $GPG $gpg_args | $TAR $tar_args -xvf -" 1>&2
 136    cat "$1" | $GPG $gpg_args | $TAR $tar_args -xvf -
 137 else
 138    echo "$usage" 1>&2
 139    exit 1
 140 fi