[Bug libgcj/17069] New: InetAddress.getLocalHost() returns broken InetAddress object if hostname not set

[Bug libgcj/17069] New: InetAddress.getLocalHost() returns broken InetAddress object if hostname not set

[greenrd at greenrd dot org]

On Linux, if the hostname of the localhost has not been set, the hostname
command-line utility returns "(none)" (which is an invalid hostname, obviously).
In this situation, a call to getLocalHost() will return an InetAddress object
with a null addr field, which will cause getAddress() and other methods to throw
a NPE.

Expected behaviour: A more indicative exception would be useful. From the API
docs, getLocalHost() should throw an java.net.UnknownHostException if it cannot
determine an IP address for the local host. However, I'm not sure that last
resort would ever be necessary. Wouldn't 127.0.0.1 for both IP address and
hostname be a failsafe fallback, for as long as IPv4 is around?

-- 
           Summary: InetAddress.getLocalHost() returns broken InetAddress
                    object if hostname not set
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: greenrd at greenrd dot org
                CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17069

[Bug libgcj/17069] InetAddress.getLocalHost() returns broken InetAddress object if hostname not set

[konqueror at gmx dot de]

------- Additional Comments From konqueror at gmx dot de  2005-01-07 22:40 -------
I'm working on it 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |konqueror at gmx dot de
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-01-07 22:40:49
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17069

[Bug libgcj/17069] InetAddress.getLocalHost() returns broken InetAddress object if hostname not set

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-01-09 18:57 -------
Subject: Bug 17069

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mkoch@gcc.gnu.org	2005-01-09 18:57:33

Modified files:
	libjava        : ChangeLog 
	libjava/java/net: InetAddress.java 

Log message:
	2005-01-09  Michael Koch  <konqueror@gmx.de>
	
	PR libgcj/17069
	* java/net/InetAddress.java (getLocalHost):
	Throw UnknownHostException if local hostname cannot be determined.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/ChangeLog.diff?cvsroot=gcc&r1=1.3275&r2=1.3276
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libjava/java/net/InetAddress.java.diff?cvsroot=gcc&r1=1.34&r2=1.35



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17069

[Bug libgcj/17069] InetAddress.getLocalHost() returns broken InetAddress object if hostname not set

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-09 18:59 -------
Fixed on the mainline (aka for 4.0.0).

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17069