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#!/usr/bin/env bash
# gates-of-tartaros – Minimal replacement for agetty with SSH support
#
# Copyright © 2013 Mattias Andrée (maandree@member.fsf.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 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, see <http://www.gnu.org/licenses/>.
if [ "$1" = "-" ]; then
tty="$2"
shift 2
export "$@"
display_function=_display
read_function=_read
login_function=_login
function _display
{
echo -en '\e[H\e[2J'
echo -e "\e[${ANSI_COLOR}m${NAME} (${tty})\e[00m"
echo
echo -n 'Login: '
}
function _read
{
read user
}
function _login
{
if [ ! "${user/@/}" = "${user}" ]; then
export GOT_COMMAND="@ssh@ ${user}"
login -p -f @sshlogin@
elif [ "${user::1}" = "-" ]; then
stty -icanon -echo -isig -ix{on,off,any}
echo $'\e[01;31mNice try! Sleeping for 10 minutes...\e[00m'
sleep 600
else
login -- "${user}"
fi
}
NAME="$(uname -o)"
ANSI_COLOR='01;34' # must be exactly ANSI_COLOR as it is defined in /etc/os-release
if [ -f "@etc@/os-release" ]; then
. "@etc@/os-release"
fi
if [ -f "@etc@/@command@rc" ]; then
. "@etc@/@command@rc"
fi
tty_settings="$(stty --save)"
$display_function
$read_function
$login_function
stty "${tty_settings}"
else
# cannot get any other solution to work with `login`
# than to spawn a new process with the pipes pre-set
tty="@dev@/$1"
"$0" - "$@" > "${tty}" 2> "${tty}" < "${tty}"
fi
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