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#!/sbin/openrc-run
# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
description="Remote Modem Utility (${RC_SVCNAME#*.})"
command="/usr/sbin/ttyd"
name="${RC_SVCNAME}"
start_stop_daemon_args="--quiet --exec ${command} --name ${name}"
depend() {
use logger
need net
}
config_check() {
# sanitize PTY/TTY names
DEV_PTY="/dev/${PTY/\/dev\/}"
DEV_TTY="${DEV_PTY/\/pty//tty}"
# create command args
command_args="-d ${DEV_PTY}"
[ -n "${BAUDRATE}" ] && command_args="${command_args} -b ${BAUDRATE}"
[ -n "${PORT_SETTINGS}" ] && command_args="${command_args} -p ${PORT_SETTINGS}"
command_args="${command_args} ${HOST} ${PORT}"
}
device_check() {
if [ ! -e "${DEV_PTY}" ]; then
eerror "PTY doesn't exist: ${DEV_PTY}"
return 1
fi
if [ ! -e "${DEV_TTY}" ]; then
eerror "TTY doesn't exist: ${DEV_TTY}"
return 1
fi
return 0
}
linkrel() { # <from> <to>
local LINK="${1%/*}/${2/\/dev\/}"
echo "${LINK/\/dev\/}" | sed "s:[^/]\+/:../:g"
}
setup_links() {
local LINK NODE
for LINK in ${SYMLINK}; do
NODE="/dev/${LINK/\/dev\/}"
mkdir -p -- "${NODE%/*}" && ln -snf -- $(linkrel "${NODE}" "${DEV_TTY}") "${NODE}"
done
for LINK in ${HARDLINK}; do
NODE="/dev/${LINK/\/dev\/}"
mkdir -p -- "${NODE%/*}" && ln -nf -- "${DEV_TTY}" "${NODE}"
done
}
unset_links() {
local LINK LIST=""
for LINK in ${SYMLINK} ${HARDLINK}; do
LIST="${LIST} /dev/${LINK/\/dev\/}"
done
[ -n "${LIST}" ] && rm -f -- ${LIST}
}
setup_perms() {
[ -n "${MODE}" ] && chmod "${MODE}" -- "${DEV_TTY}"
[ -n "${USER}" ] && chown "${USER}" -- "${DEV_TTY}"
}
unset_perms() {
[ -n "${USER}" ] && chown --reference "${DEV_PTY}" -- "${DEV_TTY}"
[ -n "${MODE}" ] && chmod --reference "${DEV_PTY}" -- "${DEV_TTY}"
}
start() {
config_check || return ${?}
device_check || return ${?}
ebegin "Starting ${description}"
start-stop-daemon --start ${start_stop_daemon_args} -- ${command_args}
if eend ${?}; then
setup_perms
setup_links
return 0 # from here we never fail
fi
}
stop() {
config_check || return ${?}
ebegin "Stopping ${description}"
start-stop-daemon --stop ${start_stop_daemon_args}
eend ${?}
unset_links
unset_perms
return 0 # never fail
}
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