48     fcntl(fd, F_SETFL, flags);      \
  49 }
  50 
  51 /*
  52  * Inet6AddressImpl
  53  */
  54 
  55 /*
  56  * Class:     java_net_Inet6AddressImpl
  57  * Method:    getLocalHostName
  58  * Signature: ()Ljava/lang/String;
  59  */
  60 JNIEXPORT jstring JNICALL
  61 Java_java_net_Inet6AddressImpl_getLocalHostName(JNIEnv *env, jobject this) {
  62     char hostname[NI_MAXHOST + 1];
  63 
  64     hostname[0] = '\0';
  65     if (gethostname(hostname, sizeof(hostname)) != 0) {
  66         strcpy(hostname, "localhost");
  67     } else {
  68 #if defined(__solaris__)
  69         // try to resolve hostname via nameservice
  70         // if it is known but getnameinfo fails, hostname will still be the
  71         // value from gethostname
  72         struct addrinfo hints, *res;
  73 
  74         // make sure string is null-terminated
  75         hostname[NI_MAXHOST] = '\0';
  76         memset(&hints, 0, sizeof(hints));
  77         hints.ai_flags = AI_CANONNAME;
  78         hints.ai_family = AF_UNSPEC;
  79 
  80         if (getaddrinfo(hostname, NULL, &hints, &res) == 0) {
  81             getnameinfo(res->ai_addr, res->ai_addrlen, hostname, sizeof(hostname),
  82                         NULL, 0, NI_NAMEREQD);
  83             freeaddrinfo(res);
  84         }
  85 #else
  86         // make sure string is null-terminated
  87         hostname[NI_MAXHOST] = '\0';
  88 #endif
  89     }
  90     return (*env)->NewStringUTF(env, hostname);
  91 }
  92 
  93 #if defined(MACOSX)
  94 /* also called from Inet4AddressImpl.c */
  95 __private_extern__ jobjectArray
  96 lookupIfLocalhost(JNIEnv *env, const char *hostname, jboolean includeV6)
  97 {
  98     jobjectArray result = NULL;
  99     char myhostname[NI_MAXHOST + 1];
 100     struct ifaddrs *ifa = NULL;
 101     int familyOrder = 0;
 102     int count = 0, i, j;
 103     int addrs4 = 0, addrs6 = 0, numV4Loopbacks = 0, numV6Loopbacks = 0;
 104     jboolean includeLoopback = JNI_FALSE;
 105     jobject name;
 106 
 107     initInetAddressIDs(env);
 108     JNU_CHECK_EXCEPTION_RETURN(env, NULL);

  48     fcntl(fd, F_SETFL, flags);      \
  49 }
  50 
  51 /*
  52  * Inet6AddressImpl
  53  */
  54 
  55 /*
  56  * Class:     java_net_Inet6AddressImpl
  57  * Method:    getLocalHostName
  58  * Signature: ()Ljava/lang/String;
  59  */
  60 JNIEXPORT jstring JNICALL
  61 Java_java_net_Inet6AddressImpl_getLocalHostName(JNIEnv *env, jobject this) {
  62     char hostname[NI_MAXHOST + 1];
  63 
  64     hostname[0] = '\0';
  65     if (gethostname(hostname, sizeof(hostname)) != 0) {
  66         strcpy(hostname, "localhost");
  67     } else {






  68         // make sure string is null-terminated
  69         hostname[NI_MAXHOST] = '\0';













  70     }
  71     return (*env)->NewStringUTF(env, hostname);
  72 }
  73 
  74 #if defined(MACOSX)
  75 /* also called from Inet4AddressImpl.c */
  76 __private_extern__ jobjectArray
  77 lookupIfLocalhost(JNIEnv *env, const char *hostname, jboolean includeV6)
  78 {
  79     jobjectArray result = NULL;
  80     char myhostname[NI_MAXHOST + 1];
  81     struct ifaddrs *ifa = NULL;
  82     int familyOrder = 0;
  83     int count = 0, i, j;
  84     int addrs4 = 0, addrs6 = 0, numV4Loopbacks = 0, numV6Loopbacks = 0;
  85     jboolean includeLoopback = JNI_FALSE;
  86     jobject name;
  87 
  88     initInetAddressIDs(env);
  89     JNU_CHECK_EXCEPTION_RETURN(env, NULL);