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 2 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, write to the Free Software
  20 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  21
  22 # Despite the name, PGP Zip format is actually an OpenPGP-wrapped tar
  23 # file.  To be compatible with PGP itself, this must be a USTAR format
  24 # tar file.  Unclear on whether there is a distinction here between
  25 # the GNU or POSIX variant of USTAR.
  26
  27 VERSION=@VERSION@
  28 TAR=@TAR@
  29 GPG=gpg
  30
  31 usage="\
  32 Usage: gpg-zip [--help] [--version] [--encrypt] [--decrypt] [--symmetric]
  33        [--list-archive] [--output FILE] [--gpg GPG] [--gpg-args ARGS]
  34        [--tar TAR] [--tar-args ARGS] filename1 [filename2, ...]
  35        directory1 [directory2, ...]
  36
  37 Encrypt or sign files into an archive."
  38
  39 while test $# -gt 0 ; do
  40   case $1 in
  41     -h | --help | --h*)
  42       echo "$usage"
  43       exit 0
  44       ;;
  45     --list-archive)
  46       list=yes
  47       create=no
  48       unpack=no
  49       shift
  50       ;;
  51     --encrypt | -e)
  52       gpg_args="$gpg_args --encrypt"
  53       list=no
  54       create=yes
  55       unpack=no
  56       shift
  57       ;;
  58     --decrypt | -d)
  59       gpg_args="$gpg_args --decrypt"
  60       list=no
  61       create=no
  62       unpack=yes
  63       shift
  64       ;;
  65     --symmetric | -c)
  66       gpg_args="$gpg_args --symmetric"
  67       list=no
  68       create=yes
  69       unpack=no
  70       shift
  71       ;;
  72     --sign | -s)
  73       gpg_args="$gpg_args --sign"
  74       list=no
  75       create=yes
  76       unpack=no
  77       shift
  78       ;;
  79     --recipient | -r)
  80       gpg_args="$gpg_args --recipient $2"
  81       shift
  82       shift
  83       ;;
  84     --local-user | -u)
  85       gpg_args="$gpg_args --local-user $2"
  86       shift
  87       shift
  88       ;;
  89     --output | -o)
  90       gpg_args="$gpg_args --output $2"
  91       shift
  92       shift
  93       ;;
  94     --version)
  95       echo "gpg-zip (GnuPG) $VERSION"
  96       exit 0
  97       ;;
  98     --gpg)
  99       GPG=$1
 100       shift
 101       ;;
 102     --gpg-args)
 103       gpg_args="$gpg_args $2"
 104       shift
 105       shift
 106       ;;
 107     --tar)
 108       TAR=$1
 109       shift
 110       ;;
 111     --tar-args)
 112       tar_args="$tar_args $2"
 113       shift
 114       shift
 115       ;;
 116     --)
 117       shift
 118       break
 119       ;;
 120     -*)
 121       echo "$usage" 1>&2
 122       exit 1
 123       ;;
 124     *)
 125       break
 126       ;;
 127   esac
 128 done
 129
 130 if test x$create = xyes ; then
 131 #   echo "$TAR -cf - "$@" | $GPG --set-filename x.tar $gpg_args" 1>&2
 132    $TAR -cf - "$@" | $GPG --set-filename x.tar $gpg_args
 133 elif test x$list = xyes ; then
 134 #   echo "cat \"$1\" | $GPG $gpg_args | $TAR $tar_args -tf -" 1>&2
 135    cat "$1" | $GPG $gpg_args | $TAR $tar_args -tf -
 136 elif test x$unpack = xyes ; then
 137 #   echo "cat \"$1\" | $GPG $gpg_args | $TAR $tar_args -xvf -" 1>&2
 138    cat "$1" | $GPG $gpg_args | $TAR $tar_args -xvf -
 139 else
 140    echo "$usage" 1>&2
 141    exit 1
 142 fi