[Bug libgcj/28234] New: MAXHOSTNAMELEN usage in libjava

[mbanck at debian dot org]

libjava/java/net/natInetAddressPosix.cc is broken on system which have no limit
for the hostname length (i.e., GNU):

/build/buildd/gcj-4.1-4.1.1/build/./gcc/xgcc -shared-libgcc
-B/build/buildd/gcj-4.1-4.1.1/build/./gcc -nostdinc++
-L/build/buildd/gcj-4.1-4.1.1/build/i486-gnu/libstdc++-v3/src
-L/build/buildd/gcj-4.1-4.1.1/build/i486-gnu/libstdc++-v3/src/.libs
-B/usr/i486-gnu/bin/ -B/usr/i486-gnu/lib/ -isystem /usr/i486-gnu/include
-isystem /usr/i486-gnu/sys-include -DHAVE_CONFIG_H -I. -I../../../src/libjava
-I./include -I./gcj -I../../../src/libjava -Iinclude
-I../../../src/libjava/include -I../../../src/libjava/classpath/include
-I../../../src/libjava/classpath/native/fdlibm
-I../../../src/libjava/../boehm-gc/include -I../boehm-gc/include
-I../../../src/libjava/libltdl -I../../../src/libjava/libltdl
-I../../../src/libjava/.././libjava/../gcc
-I../../../src/libjava/../libffi/include -I../libffi/include -fno-rtti
-fnon-call-exceptions -fdollars-in-identifiers -Wswitch-enum
-D_FILE_OFFSET_BITS=64 -ffloat-store -fomit-frame-pointer -Wextra -Wall
-D_GNU_SOURCE -DPREFIX=\"/usr\" -DLIBDIR=\"/usr/lib\" -DJAVA_HOME=\"/usr\"
-DBOOT_CLASS_PATH=\"/usr/share/java/libgcj-4.1.2.jar\"
-DJAVA_EXT_DIRS=\"/usr/share/java/ext\"
-DGCJ_ENDORSED_DIRS=\"/usr/share/java/gcj-endorsed\"
-DLIBGCJ_DEFAULT_DATABASE=\"/var/lib/gcj-4.1/classmap.db\"
-DLIBGCJ_DEFAULT_DATABASE_PATH_TAIL=\"gcj-4.1/classmap.db\"
-DTOOLEXECLIBDIR=\"/usr/lib\" -g -O2 -D_GNU_SOURCE -MT
java/net/natInetAddress.lo -MD -MP -MF java/net/.deps/natInetAddress.Tpo -c
java/net/natInetAddress.cc  -fPIC -DPIC -o java/net/.libs/natInetAddress.o
../../../src/libjava/java/lang/Class.h: In member function 'java::lang::Class*
java::lang::Class::getComponentType()':
../../../src/libjava/java/lang/Class.h:354: warning: dereferencing type-punned
pointer will break strict-aliasing rules
java/net/natInetAddress.cc: In static member function 'static
java::lang::String* java::net::InetAddress::getLocalHostname()':
java/net/natInetAddress.cc:287: error: 'MAXHOSTNAMELEN' was not declared in
this scope
java/net/natInetAddress.cc:288: error: 'buffer' was not declared in this scope
java/net/natInetAddress.cc:290: error: 'buffer' was not declared in this scope
make[6]: *** [java/net/natInetAddress.lo] Error 1
make[6]: Leaving directory `/build/buildd/gcj-4.1-4.1.1/build/i486-gnu/libjava'

Source is from gcj-4.1_4.1.1-6 from Debian unstable.


-- 
           Summary: MAXHOSTNAMELEN usage in libjava
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mbanck at debian dot org
 GCC build triplet: i686-pc-gnu0.3
  GCC host triplet: i686-pc-gnu0.3
GCC target triplet: i686-pc-gnu0.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28234