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8354576: InetAddress.getLocalHost() on macos may return address of an interface which is not UP - leading to "Network is down" error

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Reviewed-by: alanb, dfuchs, vyazici
This commit is contained in:
Jaikiran Pai 2025-04-16 08:35:05 +00:00
parent 18d605fadb
commit 4c3c2b32a1
1 changed files with 3 additions and 3 deletions
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6
src/java.base/unix/native/libnet/Inet6AddressImpl.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 2025, 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
@ -126,7 +126,7 @@ lookupIfLocalhost(JNIEnv *env, const char *hostname, jboolean includeV6, int cha
while (iter) {
if (iter->ifa_addr != NULL) {
int family = iter->ifa_addr->sa_family;
if (iter->ifa_name[0] != '\0') {
if (iter->ifa_name[0] != '\0' && (iter->ifa_flags & IFF_UP) == IFF_UP) {
jboolean isLoopback = iter->ifa_flags & IFF_LOOPBACK;
if (family == AF_INET) {
addrs4++;
@ -163,7 +163,7 @@ lookupIfLocalhost(JNIEnv *env, const char *hostname, jboolean includeV6, int cha
// Now loop around the ifaddrs
iter = ifa;
while (iter != NULL) {
if (iter->ifa_addr != NULL) {
if (iter->ifa_addr != NULL && (iter->ifa_flags & IFF_UP) == IFF_UP) {
jboolean isLoopback = iter->ifa_flags & IFF_LOOPBACK;
int family = iter->ifa_addr->sa_family;