oshi.software.os.unix.freebsd.FreeBsdNetworkParams Maven / Gradle / Ivy
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/*
* Copyright 2017-2022 The OSHI Project Contributors
* SPDX-License-Identifier: MIT
*/
package oshi.software.os.unix.freebsd;
import static com.sun.jna.platform.unix.LibCAPI.HOST_NAME_MAX;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.sun.jna.Native;
import oshi.annotation.concurrent.ThreadSafe;
import oshi.jna.ByRef.CloseablePointerByReference;
import oshi.jna.platform.unix.CLibrary;
import oshi.jna.platform.unix.CLibrary.Addrinfo;
import oshi.jna.platform.unix.FreeBsdLibc;
import oshi.software.common.AbstractNetworkParams;
import oshi.util.ExecutingCommand;
/**
* FreeBsdNetworkParams class.
*/
@ThreadSafe
final class FreeBsdNetworkParams extends AbstractNetworkParams {
private static final Logger LOG = LoggerFactory.getLogger(FreeBsdNetworkParams.class);
private static final FreeBsdLibc LIBC = FreeBsdLibc.INSTANCE;
@Override
public String getDomainName() {
try (Addrinfo hint = new Addrinfo()) {
hint.ai_flags = CLibrary.AI_CANONNAME;
String hostname = getHostName();
try (CloseablePointerByReference ptr = new CloseablePointerByReference()) {
int res = LIBC.getaddrinfo(hostname, null, hint, ptr);
if (res > 0) {
if (LOG.isErrorEnabled()) {
LOG.warn("Failed getaddrinfo(): {}", LIBC.gai_strerror(res));
}
return "";
}
Addrinfo info = new Addrinfo(ptr.getValue()); // NOSONAR
String canonname = info.ai_canonname.trim();
LIBC.freeaddrinfo(ptr.getValue());
return canonname;
}
}
}
@Override
public String getHostName() {
byte[] hostnameBuffer = new byte[HOST_NAME_MAX + 1];
if (0 != LIBC.gethostname(hostnameBuffer, hostnameBuffer.length)) {
return super.getHostName();
}
return Native.toString(hostnameBuffer);
}
@Override
public String getIpv4DefaultGateway() {
return searchGateway(ExecutingCommand.runNative("route -4 get default"));
}
@Override
public String getIpv6DefaultGateway() {
return searchGateway(ExecutingCommand.runNative("route -6 get default"));
}
}