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
35 jclass ia_class;
36 jclass iac_class;
37 jfieldID ia_holderID;
38 jfieldID iac_addressID;
39 jfieldID iac_familyID;
40 jfieldID iac_hostNameID;
41 jfieldID iac_origHostNameID;
42 jfieldID ia_preferIPv6AddressID;
43
44 static int ia_initialized = 0;
45
46 /*
47 * Class: java_net_InetAddress
48 * Method: init
49 * Signature: ()V
50 */
51 JNIEXPORT void JNICALL
52 Java_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 }
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1 /*
2 * Copyright (c) 1997, 2021, 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
35 jclass ia_class;
36 jclass iac_class;
37 jfieldID ia_holderID;
38 jfieldID iac_addressID;
39 jfieldID iac_familyID;
40 jfieldID iac_hostNameID;
41 jfieldID iac_origHostNameID;
42
43 static int ia_initialized = 0;
44
45 /*
46 * Class: java_net_InetAddress
47 * Method: init
48 * Signature: ()V
49 */
50 JNIEXPORT void JNICALL
51 Java_java_net_InetAddress_init(JNIEnv *env, jclass cls) {
52 if (!ia_initialized) {
53 jclass c = (*env)->FindClass(env,"java/net/InetAddress");
54 CHECK_NULL(c);
55 ia_class = (*env)->NewGlobalRef(env, c);
56 CHECK_NULL(ia_class);
57 c = (*env)->FindClass(env,"java/net/InetAddress$InetAddressHolder");
58 CHECK_NULL(c);
59 iac_class = (*env)->NewGlobalRef(env, c);
60 CHECK_NULL(iac_class);
61 ia_holderID = (*env)->GetFieldID(env, ia_class, "holder", "Ljava/net/InetAddress$InetAddressHolder;");
62 CHECK_NULL(ia_holderID);
63
64 iac_addressID = (*env)->GetFieldID(env, iac_class, "address", "I");
65 CHECK_NULL(iac_addressID);
66 iac_familyID = (*env)->GetFieldID(env, iac_class, "family", "I");
67 CHECK_NULL(iac_familyID);
68 iac_hostNameID = (*env)->GetFieldID(env, iac_class, "hostName", "Ljava/lang/String;");
69 CHECK_NULL(iac_hostNameID);
70 iac_origHostNameID = (*env)->GetFieldID(env, iac_class, "originalHostName", "Ljava/lang/String;");
71 CHECK_NULL(iac_origHostNameID);
72 ia_initialized = 1;
73 }
74 }
75
76 /*
77 * Class: java_net_InetAddress
78 * Method: isIPv4Available
79 */
80 JNIEXPORT jboolean JNICALL
81 Java_java_net_InetAddress_isIPv4Available(JNIEnv *env, jclass clazz) {
82 return ipv4_available();
83 }
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