NetworkUtils/src/dorkbox/netUtil/Dhcp.kt

60 lines
1.8 KiB
Kotlin

/*
* Copyright 2020 dorkbox, llc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package dorkbox.netUtil
import dorkbox.executor.Executor
import java.io.File
/**
*
*/
object Dhcp {
/**
* Gets the version number.
*/
const val version = Common.version
fun start(id: String, interfaceName: String) {
if (Common.OS_LINUX) {
stop(id, interfaceName)
val dhcpPidFile = "/var/run/dhclient-$id.pid"
Executor().command("/sbin/dhclient", "-pf", dhcpPidFile, interfaceName).startBlocking()
} else {
throw RuntimeException("NOT IMPL.")
}
}
fun stop(id: String, interfaceName: String) {
if (Common.OS_LINUX) {
val dhcpPidFile = "/var/run/dhclient-$id.pid"
// close the dhclient if it was already running (based on pid file), and delete the pid file
Executor().command("/sbin/dhclient", "-r -pf", dhcpPidFile, interfaceName).startBlocking()
// short break
try {
Thread.sleep(500)
} catch (e: InterruptedException) {
e.printStackTrace()
}
File(dhcpPidFile).delete()
} else {
throw RuntimeException("NOT IMPL.")
}
}
}