0N/A/*
2362N/A * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A#include <stdio.h>
0N/A#include <stdlib.h>
0N/A#include <unistd.h>
0N/A#include <errno.h>
0N/A
0N/A#ifdef __solaris__
0N/A#include <sys/systeminfo.h>
0N/A#include <strings.h>
0N/A#endif
0N/A
4632N/A#if defined(__linux__) || defined(_ALLBSD_SOURCE)
0N/A#include <string.h>
0N/A#endif
0N/A
0N/A#include "jni.h"
0N/A
0N/A#ifndef MAXDNAME
0N/A#define MAXDNAME 1025
0N/A#endif
0N/A
0N/A
0N/A/*
0N/A * Class: sun_net_dns_ResolverConfgurationImpl
0N/A * Method: localDomain0
0N/A * Signature: ()Ljava/lang/String;
0N/A */
0N/AJNIEXPORT jstring JNICALL
0N/AJava_sun_net_dns_ResolverConfigurationImpl_localDomain0(JNIEnv *env, jclass cls)
0N/A{
0N/A /*
0N/A * On Solaris the LOCALDOMAIN environment variable has absolute
0N/A * priority.
0N/A */
0N/A#ifdef __solaris__
0N/A {
0N/A char *cp = getenv("LOCALDOMAIN");
0N/A if (cp != NULL) {
0N/A jstring s = (*env)->NewStringUTF(env, cp);
0N/A return s;
0N/A }
0N/A }
0N/A#endif
0N/A return (jstring)NULL;
0N/A}
0N/A
0N/A/*
0N/A * Class: sun_net_dns_ResolverConfgurationImpl
0N/A * Method: loadConfig0
0N/A * Signature: ()Ljava/lang/String;
0N/A */
0N/AJNIEXPORT jstring JNICALL
0N/AJava_sun_net_dns_ResolverConfigurationImpl_fallbackDomain0(JNIEnv *env, jclass cls)
0N/A{
0N/A char buf[MAXDNAME];
0N/A
0N/A /*
0N/A * On Solaris if domain or search directives aren't specified
0N/A * in /etc/resolv.conf then sysinfo or gethostname is used to
0N/A * determine the domain name.
0N/A *
0N/A * On Linux if domain or search directives aren't specified
0N/A * then gethostname is used.
0N/A */
0N/A
0N/A#ifdef __solaris__
0N/A {
0N/A int ret = sysinfo(SI_SRPC_DOMAIN, buf, sizeof(buf));
0N/A
0N/A if ((ret > 0) && (ret<sizeof(buf))) {
0N/A char *cp;
0N/A jstring s;
0N/A
0N/A if (buf[0] == '+') {
0N/A buf[0] = '.';
0N/A }
0N/A cp = strchr(buf, '.');
0N/A if (cp == NULL) {
0N/A s = (*env)->NewStringUTF(env, buf);
0N/A } else {
0N/A s = (*env)->NewStringUTF(env, cp+1);
0N/A }
0N/A return s;
0N/A }
0N/A }
0N/A#endif
0N/A
0N/A if (gethostname(buf, sizeof(buf)) == 0) {
0N/A char *cp;
0N/A
0N/A /* gethostname doesn't null terminate if insufficient space */
0N/A buf[sizeof(buf)-1] = '\0';
0N/A
0N/A cp = strchr(buf, '.');
0N/A if (cp != NULL) {
0N/A jstring s = (*env)->NewStringUTF(env, cp+1);
0N/A return s;
0N/A }
0N/A }
0N/A
0N/A return (jstring)NULL;
0N/A}