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      1 /*
      2  * Copyright (c) 1997, 2002, 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 "net_util.h"
     29 #include "JNIHelp.h"
     30 
     31 #define NATIVE_METHOD(className, functionName, signature) \
     32 { #functionName, signature, (void*)(className ## _ ## functionName) }
     33 
     34 /************************************************************************
     35  * InetAddress
     36  */
     37 
     38 jclass ia_class;
     39 jclass iac_class;
     40 jfieldID ia_holderID;
     41 jfieldID iac_addressID;
     42 jfieldID iac_familyID;
     43 jfieldID iac_hostNameID;
     44 
     45 static void InetAddress_init(JNIEnv *env) {
     46     jclass c = (*env)->FindClass(env,"java/net/InetAddress");
     47     CHECK_NULL(c);
     48     ia_class = (*env)->NewGlobalRef(env, c);
     49     CHECK_NULL(ia_class);
     50     c = (*env)->FindClass(env,"java/net/InetAddress$InetAddressHolder");
     51     CHECK_NULL(c);
     52     iac_class = (*env)->NewGlobalRef(env, c);
     53     ia_holderID = (*env)->GetFieldID(env, ia_class, "holder", "Ljava/net/InetAddress$InetAddressHolder;");
     54     CHECK_NULL(ia_holderID);
     55 
     56     iac_addressID = (*env)->GetFieldID(env, iac_class, "address", "I");
     57     CHECK_NULL(iac_addressID);
     58     iac_familyID = (*env)->GetFieldID(env, iac_class, "family", "I");
     59     CHECK_NULL(iac_familyID);
     60     iac_hostNameID = (*env)->GetFieldID(env, iac_class, "hostName", "Ljava/lang/String;");
     61     CHECK_NULL(iac_hostNameID);
     62 }
     63 
     64 void register_java_net_InetAddress(JNIEnv* env) {
     65   InetAddress_init(env);
     66 }
     67