1/*
2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#include <string.h>
27
28#include "java_net_InetAddress.h"
29#include "net_util.h"
30
31/************************************************************************
32 * InetAddress
33 */
34
35jclass ia_class;
36jclass iac_class;
37jfieldID ia_holderID;
38jfieldID iac_addressID;
39jfieldID iac_familyID;
40jfieldID iac_hostNameID;
41jfieldID iac_origHostNameID;
42jfieldID ia_preferIPv6AddressID;
43
44static int ia_initialized = 0;
45
46/*
47 * Class:     java_net_InetAddress
48 * Method:    init
49 * Signature: ()V
50 */
51JNIEXPORT void JNICALL
52Java_java_net_InetAddress_init(JNIEnv *env, jclass cls) {
53    if (!ia_initialized) {
54        jclass c = (*env)->FindClass(env,"java/net/InetAddress");
55        CHECK_NULL(c);
56        ia_class = (*env)->NewGlobalRef(env, c);
57        CHECK_NULL(ia_class);
58        c = (*env)->FindClass(env,"java/net/InetAddress$InetAddressHolder");
59        CHECK_NULL(c);
60        iac_class = (*env)->NewGlobalRef(env, c);
61        CHECK_NULL(iac_class);
62        ia_holderID = (*env)->GetFieldID(env, ia_class, "holder", "Ljava/net/InetAddress$InetAddressHolder;");
63        CHECK_NULL(ia_holderID);
64        ia_preferIPv6AddressID = (*env)->GetStaticFieldID(env, ia_class, "preferIPv6Address", "I");
65        CHECK_NULL(ia_preferIPv6AddressID);
66
67        iac_addressID = (*env)->GetFieldID(env, iac_class, "address", "I");
68        CHECK_NULL(iac_addressID);
69        iac_familyID = (*env)->GetFieldID(env, iac_class, "family", "I");
70        CHECK_NULL(iac_familyID);
71        iac_hostNameID = (*env)->GetFieldID(env, iac_class, "hostName", "Ljava/lang/String;");
72        CHECK_NULL(iac_hostNameID);
73        iac_origHostNameID = (*env)->GetFieldID(env, iac_class, "originalHostName", "Ljava/lang/String;");
74        CHECK_NULL(iac_origHostNameID);
75        ia_initialized = 1;
76    }
77}
78