1 /*
   2  * Copyright (c) 1998, 2012, 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

  50         if (JVM_InitializeSocketLibrary() < 0) {
  51             JNU_ThrowByName(env, "java/lang/UnsatisfiedLinkError",
  52                             "failed to initialize net library.");
  53             return JNI_VERSION_1_2;
  54         }
  55     }
  56     iCls = (*env)->FindClass(env, "java/lang/Boolean");
  57     CHECK_NULL_RETURN(iCls, JNI_VERSION_1_2);
  58     mid = (*env)->GetStaticMethodID(env, iCls, "getBoolean", "(Ljava/lang/String;)Z");
  59     CHECK_NULL_RETURN(mid, JNI_VERSION_1_2);
  60     s = (*env)->NewStringUTF(env, "java.net.preferIPv4Stack");
  61     CHECK_NULL_RETURN(s, JNI_VERSION_1_2);
  62     preferIPv4Stack = (*env)->CallStaticBooleanMethod(env, iCls, mid, s);
  63 
  64     /*
  65        Since we have initialized and loaded the Socket library we will
  66        check now to whether we have IPv6 on this platform and if the
  67        supporting socket APIs are available
  68     */
  69     IPv6_available = IPv6_supported() & (!preferIPv4Stack);
  70     initLocalAddrTable ();
  71     parseExclusiveBindProperty(env);
  72 
  73     return JNI_VERSION_1_2;
  74 }
  75 
  76 static int initialized = 0;
  77 
  78 static void initInetAddrs(JNIEnv *env) {
  79     if (!initialized) {
  80         Java_java_net_InetAddress_init(env, 0);
  81         Java_java_net_Inet4Address_init(env, 0);
  82         Java_java_net_Inet6Address_init(env, 0);
  83         initialized = 1;
  84     }
  85 }
  86 
  87 /* The address, and family fields used to be in InetAddress
  88  * but are now in an implementation object. So, there is an extra
  89  * level of indirection to access them now.
  90  */

   1 /*
   2  * Copyright (c) 1998, 2013, 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

  50         if (JVM_InitializeSocketLibrary() < 0) {
  51             JNU_ThrowByName(env, "java/lang/UnsatisfiedLinkError",
  52                             "failed to initialize net library.");
  53             return JNI_VERSION_1_2;
  54         }
  55     }
  56     iCls = (*env)->FindClass(env, "java/lang/Boolean");
  57     CHECK_NULL_RETURN(iCls, JNI_VERSION_1_2);
  58     mid = (*env)->GetStaticMethodID(env, iCls, "getBoolean", "(Ljava/lang/String;)Z");
  59     CHECK_NULL_RETURN(mid, JNI_VERSION_1_2);
  60     s = (*env)->NewStringUTF(env, "java.net.preferIPv4Stack");
  61     CHECK_NULL_RETURN(s, JNI_VERSION_1_2);
  62     preferIPv4Stack = (*env)->CallStaticBooleanMethod(env, iCls, mid, s);
  63 
  64     /*
  65        Since we have initialized and loaded the Socket library we will
  66        check now to whether we have IPv6 on this platform and if the
  67        supporting socket APIs are available
  68     */
  69     IPv6_available = IPv6_supported() & (!preferIPv4Stack);
  70     platformInit();
  71     parseExclusiveBindProperty(env);
  72 
  73     return JNI_VERSION_1_2;
  74 }
  75 
  76 static int initialized = 0;
  77 
  78 static void initInetAddrs(JNIEnv *env) {
  79     if (!initialized) {
  80         Java_java_net_InetAddress_init(env, 0);
  81         Java_java_net_Inet4Address_init(env, 0);
  82         Java_java_net_Inet6Address_init(env, 0);
  83         initialized = 1;
  84     }
  85 }
  86 
  87 /* The address, and family fields used to be in InetAddress
  88  * but are now in an implementation object. So, there is an extra
  89  * level of indirection to access them now.
  90  */