Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-4088617

InetAddress.getLocalHost() not returning host-info

XMLWordPrintable

    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: P3 P3
    • None
    • 1.1.3
    • core-libs
    • None
    • sparc
    • solaris_2.5.1



      Name: rm29839 Date: 10/24/97


       From a send I posted to advanced-java mailing list:

      Hello,

      I've done the background work on this and didnt find very much that
      applied. I have two machines both of which are Solaris 2.5.1 machines.
      Specific architecture is as follows:
        SunOS pandora 5.5.1 Genric_103640-08 sun4u SUNW,Ultra-Enterprise

      One of these machines is dual-homed with two lance interfaces.
      The other machine is single homed with a fiber interface.

      Lastly, I speculate they are both using some form of DHCP boot.

      InetAddress.getLocalHost() under JDK 1.1.3 is returning the address for
      localhost/127.0.0.1. This is what is returned by
      java.net.InetAddressImpl as provided. One of the threads I read
      indicated that this information was gathered from sysinfo, however
      initial tests do not seem to confirm that. This simple application
      returned the name pandora.

        #include <stdio.h>
        #include <stdlib.h>
        #include <sys/systeminfo.h>

        void main() {
          char host[512] ;
          sysinfo( SI_HOSTNAME, host, sizeof(host) ) ;
          printf( "%s\n", host ) ;
        }

      Is anyone familiar enough with the workings of InetAddressImpl on
      Solaris to tell me what might be causing this to occur.

      -- Additionally, source code which causes the failure

      import java.net.* ;

      public class test {
        public static void main( String[] args ) throws Exception {
          InetAddress addr = InetAddress.getLocalHost() ;
          System.out.println( addr.toString() ) ;
          System.out.println( addr.getHostName() ) ;
          System.out.println( addr.getHostAddress() ) ;
        }
      }

      -- Results

      localhost/127.0.0.1
      localhost
      127.0.0.1

      -- Further information, output from ifconfig

      ifconfig -a

      lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
      inet 127.0.0.1 netmask ff000000
      fddi0: flags=1863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST,MULTI_BCAST> mtu 4352
      inet 172.16.64.45 netmask ffffff00 broadcast 172.16.64.255
      ether 0:40:b:40:e9:7f
      ======================================================================

            brenaudsunw Benjamin Renaud (Inactive)
            rmandelsunw Ronan Mandel (Inactive)
            Votes:
            0 Vote for this issue
            Watchers:
            0 Start watching this issue

              Created:
              Updated:
              Resolved:
              Imported:
              Indexed: