File: wb-ssh-wrapper

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#!/bin/bash
#
# A wrapper script to point ssh at in an authorized_keys file to only allow
# access to wanna-build
# Copyright © 2006 Ryan Murray <rmurray@debian.org>
#
# 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 2 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, see
# <http://www.gnu.org/licenses/>.
#
#######################################################################

bin=/usr/bin/wanna-build

[ -n "$SSH_ORIGINAL_COMMAND" ] || exit 1

set -- $SSH_ORIGINAL_COMMAND

bn=$(basename "$1")
if [ "$bn" != "wanna-build" ]; then
    exit 1
fi

shift

[ -f "$bin" -a -x "$bin" ] || exit 1

exec $bin $@