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src/java.base/windows/native/libnet/Inet6AddressImpl.c

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@@ -1,7 +1,7 @@
  /*
-  * Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
+  * Copyright (c) 2000, 2021, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this

@@ -27,10 +27,11 @@
  #include "net_util.h"
  
  #include "java_net_InetAddress.h"
  #include "java_net_Inet4AddressImpl.h"
  #include "java_net_Inet6AddressImpl.h"
+ #include "java_net_spi_InetAddressResolver_LookupPolicy.h"
  
  /*
   * Inet6AddressImpl
   */
  

@@ -54,11 +55,11 @@
   * Method:    lookupAllHostAddr
   * Signature: (Ljava/lang/String;)[[B
   */
  JNIEXPORT jobjectArray JNICALL
  Java_java_net_Inet6AddressImpl_lookupAllHostAddr(JNIEnv *env, jobject this,
-                                                  jstring host) {
+                                                  jstring host, jint characteristics) {
      jobjectArray ret = NULL;
      const char *hostname;
      int error = 0;
      struct addrinfo hints, *res = NULL, *resNew = NULL, *last = NULL,
          *iterator;

@@ -74,11 +75,11 @@
      CHECK_NULL_RETURN(hostname, NULL);
  
      // try once, with our static buffer
      memset(&hints, 0, sizeof(hints));
      hints.ai_flags = AI_CANONNAME;
-     hints.ai_family = AF_UNSPEC;
+     hints.ai_family = lookupCharacteristicsToAddressFamily(characteristics);
  
      error = getaddrinfo(hostname, NULL, &hints, &res);
  
      if (error) {
          // report error

@@ -86,12 +87,10 @@
                                       hostname);
          goto cleanupAndReturn;
      } else {
          int i = 0, inetCount = 0, inet6Count = 0, inetIndex = 0,
              inet6Index = 0, originalIndex = 0;
-         int addressPreference =
-             (*env)->GetStaticIntField(env, ia_class, ia_preferIPv6AddressID);
          iterator = res;
          while (iterator != NULL) {
              // skip duplicates
              int skip = 0;
              struct addrinfo *iteratorNew = resNew;

@@ -166,17 +165,17 @@
          if (IS_NULL(ret)) {
              /* we may have memory to free at the end of this */
              goto cleanupAndReturn;
          }
  
-         if (addressPreference == java_net_InetAddress_PREFER_IPV6_VALUE) {
+         if ((characteristics & java_net_spi_InetAddressResolver_LookupPolicy_IPV6_FIRST) != 0) {
              inetIndex = inet6Count;
              inet6Index = 0;
-         } else if (addressPreference == java_net_InetAddress_PREFER_IPV4_VALUE) {
+         } else if ((characteristics & java_net_spi_InetAddressResolver_LookupPolicy_IPV4_FIRST) != 0) {
              inetIndex = 0;
              inet6Index = inetCount;
-         } else if (addressPreference == java_net_InetAddress_PREFER_SYSTEM_VALUE) {
+         } else {
              inetIndex = inet6Index = originalIndex = 0;
          }
  
          iterator = resNew;
          while (iterator != NULL) {

@@ -215,11 +214,12 @@
                  if ((*env)->ExceptionCheck(env))
                      goto cleanupAndReturn;
                  (*env)->SetObjectArrayElement(env, ret, (inet6Index | originalIndex), iaObj);
                  inet6Index++;
              }
-             if (addressPreference == java_net_InetAddress_PREFER_SYSTEM_VALUE) {
+             // Check if addresses are requested to be returned in SYSTEM order
+             if (addressesInSystemOrder(characteristics)) {
                  originalIndex++;
                  inetIndex = inet6Index = 0;
              }
              iterator = iterator->ai_next;
          }
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