mirror of
git://git.gnupg.org/gnupg.git
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109 lines
2.4 KiB
Bash
Executable File
109 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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# Append a signature to an existing detached signature.
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# Copyright (C) 2016 g10 Code GmbH
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#
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# This file is free software; as a special exception the author gives
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# unlimited permission to copy and/or distribute it, with or without
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# modifications, as long as this notice is preserved.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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set -e
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PGM="$(basename $0)"
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GPGV=gpgv
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# Prints usage information.
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usage()
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{
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cat <<EOF
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Usage: $PGM TARBALL NEWSIGNATURE
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Append a signature to an existing detached signature.
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Options:
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--verbose Print some extra information.
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--help Print this help.
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EOF
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exit $1
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}
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#
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# Parse options
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#
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verbose=""
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while [ $# -gt 0 ]; do
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case "$1" in
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# Set up `optarg'.
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--*=*)
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optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'`
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;;
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*)
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optarg=""
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;;
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esac
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case $1 in
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--help|-h)
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usage 0
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;;
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--verbose|-v)
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verbose="-v"
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;;
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--)
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break
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;;
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-*)
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usage 1 1>&2
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;;
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*)
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break;
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;;
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esac
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shift
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done
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if [ $# -ne 2 ]; then
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usage 1 1>&2
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fi
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tarball="$1"
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tarballsig="$1".sig
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newsig="$2"
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[ -n "$verbose" ] && echo "tarball: $tarball"
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[ -n "$verbose" ] && echo "sig ...: $tarballsig"
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[ -n "$verbose" ] && echo "newsig : $newsig"
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if ! $GPGV --version >/dev/null 2>/dev/null ; then
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echo "${PGM}: Command \"gpgv\" is not installed" >&2
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exit 1
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fi
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distsigkey="/usr/local/share/gnupg/distsigkey.gpg"
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if [ ! -f "$distsigkey" ]; then
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distsigkey="/usr/share/gnupg/distsigkey.gpg"
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fi
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if [ ! -f "$distsigkey" ]; then
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echo "${PGM}: File \"$distsigkey\" is not installed" >&2
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exit 1
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fi
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if ! $GPGV $verbose --keyring "$distsigkey" \
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-- "$tarballsig" "$tarball" 2>/dev/null ; then
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echo "${PGM}: Existing signature '$tarballsig' does not verify" >&2
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exit 1
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fi
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if ! $GPGV $verbose --keyring "$distsigkey" \
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-- "$newsig" "$tarball" 2>/dev/null; then
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echo "${PGM}: New signature '$newsig' does not verify" >&2
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exit 1
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fi
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cat "$newsig" >> "$tarballsig"
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if ! $GPGV $verbose --keyring "$distsigkey" \
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-- "$tarballsig" "$tarball"; then
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echo "${PGM}: Update signature '$tarballsig' does not verify" >&2
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exit 1
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fi
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