configure.in: Create links to architecture dependent files...

2003-03-18  Michael Koch  <konqueror@gmx.de>

	* configure.in: Create links to architecture dependent files,
	introduced PLATFORMNET variable (set to NoNet for newlib usage).
	* configure: Regenerated.
	* java/net/natInetAddressNoNet.cc,
	java/net/natInetAddressPosix.cc,
	java/net/natInetAddressWin32.cc,
	java/net/natNetworkInterfaceNoNet.cc,
	java/net/natNetworkInterfacePosix.cc,
	java/net/natNetworkInterfaceWin32.cc,
	java/net/natPlainDatagramSocketImplNoNet.cc,
	java/net/natPlainDatagramSocketImplPosix.cc,
	java/net/natPlainDatagramSocketImplWin32.cc,
	java/net/natPlainSocketImplNoNet.cc,
	java/net/natPlainSocketImplPosix.cc,
	java/net/natPlainSocketImplWin32.cc: New files.

From-SVN: r64526

15 files changed, 4761 insertions, 2 deletions

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 16697a7..30febf5 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,5 +1,23 @@
 2003-03-18  Michael Koch  <konqueror@gmx.de>
 
+	* configure.in: Create links to architecture dependent files,
+	introduced PLATFORMNET variable (set to NoNet for newlib usage).
+	* configure: Regenerated.
+	* java/net/natInetAddressNoNet.cc,
+	java/net/natInetAddressPosix.cc,
+	java/net/natInetAddressWin32.cc,
+	java/net/natNetworkInterfaceNoNet.cc,
+	java/net/natNetworkInterfacePosix.cc,
+	java/net/natNetworkInterfaceWin32.cc,
+	java/net/natPlainDatagramSocketImplNoNet.cc,
+	java/net/natPlainDatagramSocketImplPosix.cc,
+	java/net/natPlainDatagramSocketImplWin32.cc,
+	java/net/natPlainSocketImplNoNet.cc,
+	java/net/natPlainSocketImplPosix.cc,
+	java/net/natPlainSocketImplWin32.cc: New files.
+
+2003-03-18  Michael Koch  <konqueror@gmx.de>
+
 	* java/io/BufferedReader.java,
 	java/io/BufferedWriter.java,
 	java/io/ByteArrayOutputStream.java,
diff --git a/libjava/configure b/libjava/configure
index f9292f0..3986589 100755
--- a/libjava/configure
+++ b/libjava/configure
@@ -2976,6 +2976,7 @@ case "$TARGET_ECOS" in
    no) case "$host" in
       *mingw*)
             PLATFORM=Win32
+	    PLATFORMNET=Win32
             PLATFORMOBJS=win32.lo
 	    PLATFORMH=win32.h
         
@@ -3005,6 +3006,7 @@ fi
       ;;
       *)
             PLATFORM=Posix
+	    PLATFORMNET=Posix
             PLATFORMOBJS=posix.lo
 	    PLATFORMH=posix.h
       ;;
@@ -3012,6 +3014,7 @@ fi
       ;;
    *)
       PLATFORM=Ecos
+      PLATFORMNET=NoNet
       cat >> confdefs.h <<\EOF
 #define ECOS 1
 EOF
@@ -3206,6 +3209,12 @@ test -d java/lang || mkdir java/lang
 
 
 
+test -d java/net || mkdir java/net
+
+
+
+
+
 case "${host}" in
     *mingw*)
       SYSTEMSPEC="-lgdi32 -lwsock32 -lws2_32"
@@ -4395,6 +4404,7 @@ EOF
       GCJ="${target_alias}-gcj"
    fi
    NATIVE=no
+   PLATFORMNET=NoNet
 else
    for ac_func in strerror ioctl select fstat open fsync sleep opendir
 do
@@ -9125,8 +9135,8 @@ fi; done
 EOF
 
 cat >> $CONFIG_STATUS <<EOF
-ac_sources="include/$PLATFORMH java/io/natFile${FILE-${PLATFORM}}.cc java/io/natFileDescriptor${FILE-${PLATFORM}}.cc java/lang/${PLATFORM}Process.java java/lang/nat${PLATFORM}Process.cc include/$GCHDR include/$THREADH sysdep/$sysdeps_dir/locks.h $SIGNAL_HANDLER"
-ac_dests="include/platform.h java/io/natFile.cc java/io/natFileDescriptor.cc java/lang/ConcreteProcess.java java/lang/natConcreteProcess.cc include/java-gc.h include/java-threads.h sysdep/locks.h include/java-signal.h"
+ac_sources="include/$PLATFORMH java/io/natFile${FILE-${PLATFORM}}.cc java/io/natFileDescriptor${FILE-${PLATFORM}}.cc java/lang/${PLATFORM}Process.java java/lang/nat${PLATFORM}Process.cc java/net/natInetAddress${PLATFORMNET}.cc java/net/natNetworkInterface${PLATFORMNET}.cc java/net/natPlainSocketImpl${PLATFORMNET}.cc java/net/natPlainDatagramSocketImpl${PLATFORMNET}.cc include/$GCHDR include/$THREADH sysdep/$sysdeps_dir/locks.h $SIGNAL_HANDLER"
+ac_dests="include/platform.h java/io/natFile.cc java/io/natFileDescriptor.cc java/lang/ConcreteProcess.java java/lang/natConcreteProcess.cc java/lang/natInetAddress.cc java/lang/natNetworkInterface.cc java/lang/natPlainSocketImpl.cc java/lang/natPlainDatagramSocketImpl.cc include/java-gc.h include/java-threads.h sysdep/locks.h include/java-signal.h"
 EOF
 
 cat >> $CONFIG_STATUS <<\EOF
diff --git a/libjava/configure.in b/libjava/configure.in
index 4429a13..ff4a7ab 100644
--- a/libjava/configure.in
+++ b/libjava/configure.in
@@ -224,12 +224,14 @@ case "$TARGET_ECOS" in
    no) case "$host" in
       *mingw*)
             PLATFORM=Win32
+	    PLATFORMNET=Win32
             PLATFORMOBJS=win32.lo
 	    PLATFORMH=win32.h
         CHECK_FOR_BROKEN_MINGW_LD
       ;;
       *)
             PLATFORM=Posix
+	    PLATFORMNET=Posix
             PLATFORMOBJS=posix.lo
 	    PLATFORMH=posix.h
       ;;
@@ -237,6 +239,7 @@ case "$TARGET_ECOS" in
       ;;
    *)
       PLATFORM=Ecos
+      PLATFORMNET=NoNet
       AC_DEFINE(ECOS)
       PLATFORMOBJS=posix.lo
       PLATFORMH=posix.h
@@ -269,6 +272,14 @@ test -d java/lang || mkdir java/lang
 AC_LINK_FILES(java/lang/${PLATFORM}Process.java, java/lang/ConcreteProcess.java)
 AC_LINK_FILES(java/lang/nat${PLATFORM}Process.cc, java/lang/natConcreteProcess.cc)
 
+dnl Likewise for natInetAddress.cc, natNetworkInterface.cc, natPlainSocketImpl.cc
+dnl and natPlainDatagramSocketImpl.cc
+test -d java/net || mkdir java/net
+AC_LINK_FILES(java/net/natInetAddress${PLATFORMNET}.cc, java/lang/natInetAddress.cc)
+AC_LINK_FILES(java/net/natNetworkInterface${PLATFORMNET}.cc, java/lang/natNetworkInterface.cc)
+AC_LINK_FILES(java/net/natPlainSocketImpl${PLATFORMNET}.cc, java/lang/natPlainSocketImpl.cc)
+AC_LINK_FILES(java/net/natPlainDatagramSocketImpl${PLATFORMNET}.cc, java/lang/natPlainDatagramSocketImpl.cc)
+
 case "${host}" in
     *mingw*)
       SYSTEMSPEC="-lgdi32 -lwsock32 -lws2_32"
@@ -554,6 +565,7 @@ if test "x${with_newlib}" = "xyes"; then
       GCJ="${target_alias}-gcj"
    fi
    NATIVE=no
+   PLATFORMNET=NoNet
 else
    AC_CHECK_FUNCS(strerror ioctl select fstat open fsync sleep opendir)
    AC_CHECK_FUNCS(gmtime_r localtime_r readdir_r getpwuid_r getcwd)
diff --git a/libjava/java/net/natInetAddressNoNet.cc b/libjava/java/net/natInetAddressNoNet.cc
new file mode 100644
index 0000000..d28e6b3
--- /dev/null
+++ b/libjava/java/net/natInetAddressNoNet.cc
@@ -0,0 +1,35 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+
+#include <java/net/InetAddress.h>
+
+jbyteArray
+java::net::InetAddress::aton (jstring)
+{
+  return NULL;
+}
+
+jint
+java::net::InetAddress::getFamily (jbyteArray bytes)
+{
+  return 0;
+}
+
+JArray<java::net::InetAddress*> *
+java::net::InetAddress::lookup (jstring, java::net::InetAddress *, jboolean)
+{
+  return NULL;
+}
+
+jstring
+java::net::InetAddress::getLocalHostname ()
+{
+  return NULL;
+}
diff --git a/libjava/java/net/natInetAddressPosix.cc b/libjava/java/net/natInetAddressPosix.cc
new file mode 100644
index 0000000..b97502e
--- /dev/null
+++ b/libjava/java/net/natInetAddressPosix.cc
@@ -0,0 +1,311 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <string.h>
+#include <errno.h>
+
+#include <sys/param.h>
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java/net/InetAddress.h>
+#include <java/net/UnknownHostException.h>
+#include <java/lang/SecurityException.h>
+
+#if defined(HAVE_UNAME) && ! defined(HAVE_GETHOSTNAME)
+#include <sys/utsname.h>
+#endif
+
+#ifndef HAVE_GETHOSTNAME_DECL
+extern "C" int gethostname (char *name, int namelen);
+#endif
+
+jbyteArray
+java::net::InetAddress::aton (jstring host)
+{
+  char *hostname;
+  char buf[100];
+  int len = JvGetStringUTFLength(host);
+  if (len < 100)
+    hostname = buf;
+  else
+    hostname = (char*) _Jv_AllocBytes (len+1);
+  JvGetStringUTFRegion (host, 0, host->length(), hostname);
+  buf[len] = '\0';
+  char* bytes = NULL;
+  int blen = 0;
+#ifdef HAVE_INET_ATON
+  struct in_addr laddr;
+  if (inet_aton (hostname, &laddr))
+    {
+      bytes = (char*) &laddr;
+      blen = 4;
+    }
+#elif defined(HAVE_INET_ADDR)
+#if ! HAVE_IN_ADDR_T
+  typedef jint in_addr_t;
+#endif
+  in_addr_t laddr = inet_addr (hostname);
+  if (laddr != (in_addr_t)(-1))
+    {
+      bytes = (char*) &laddr;
+      blen = 4;
+    }
+#endif
+#if defined (HAVE_INET_PTON) && defined (HAVE_INET6)
+  char inet6_addr[16];
+  if (len != 0 && inet_pton (AF_INET6, hostname, inet6_addr) > 0)
+    {
+      bytes = inet6_addr;
+      blen = 16;
+    }
+#endif
+  if (blen == 0)
+    return NULL;
+  jbyteArray result = JvNewByteArray (blen);
+  memcpy (elements (result), bytes, blen);
+  return result;
+}
+
+jint
+java::net::InetAddress::getFamily (jbyteArray bytes)
+{
+  int len = bytes->length;
+  if (len == 4)
+    return AF_INET;
+#ifdef HAVE_INET6
+  else if (len == 16)
+    return AF_INET6;
+#endif /* HAVE_INET6 */
+  else
+    JvFail ("unrecognized size");
+}
+
+
+JArray<java::net::InetAddress*> *
+java::net::InetAddress::lookup (jstring host, java::net::InetAddress* iaddr,
+				jboolean all)
+{
+  struct hostent *hptr = NULL;
+#if defined (HAVE_GETHOSTBYNAME_R) || defined (HAVE_GETHOSTBYADDR_R)
+  struct hostent hent_r;
+#if HAVE_STRUCT_HOSTENT_DATA
+  struct hostent_data fixed_buffer, *buffer_r = &fixed_buffer;
+#else
+#if defined (__GLIBC__) 
+  // FIXME: in glibc, gethostbyname_r returns NETDB_INTERNAL to herr and
+  // ERANGE to errno if the buffer size is too small, rather than what is 
+  // expected here. We work around this by setting a bigger buffer size and 
+  // hoping that it is big enough.
+  char fixed_buffer[1024];
+#else
+  char fixed_buffer[200];
+#endif
+  char *buffer_r = fixed_buffer;
+  int size_r = sizeof (fixed_buffer);
+#endif
+#endif
+
+  if (host != NULL)
+    {
+      char *hostname;
+      char buf[100];
+      int len = JvGetStringUTFLength(host);
+      if (len < 100)
+	hostname = buf;
+      else
+	hostname = (char*) _Jv_AllocBytes (len+1);
+      JvGetStringUTFRegion (host, 0, host->length(), hostname);
+      buf[len] = '\0';
+#ifdef HAVE_GETHOSTBYNAME_R
+      while (true)
+	{
+	  int ok;
+#if HAVE_STRUCT_HOSTENT_DATA
+	  ok = ! gethostbyname_r (hostname, &hent_r, buffer_r);
+#else
+	  int herr = 0;
+#ifdef GETHOSTBYNAME_R_RETURNS_INT
+	  ok = ! gethostbyname_r (hostname, &hent_r, buffer_r, size_r,
+				  &hptr, &herr);
+#else
+	  hptr = gethostbyname_r (hostname, &hent_r, buffer_r, size_r, &herr);
+	  ok = hptr != NULL;
+#endif /* GETHOSTNAME_R_RETURNS_INT */
+	  if (! ok && herr == ERANGE)
+	    {
+	      size_r *= 2;
+	      buffer_r = (char *) _Jv_AllocBytes (size_r);
+	    }
+	  else
+#endif /* HAVE_STRUCT_HOSTENT_DATA */
+	    break;
+	}
+#else
+      // FIXME: this is insufficient if some other piece of code calls
+      // this gethostbyname.
+      JvSynchronize sync (java::net::InetAddress::localhostAddress);
+      hptr = gethostbyname (hostname);
+#endif /* HAVE_GETHOSTBYNAME_R */
+    }
+  else
+    {
+      jbyteArray bytes = iaddr->addr;
+      char *chars = (char*) elements (bytes);
+      int len = bytes->length;
+      int type;
+      char *val;
+      if (len == 4)
+	{
+	  val = chars;
+	  type = iaddr->family = AF_INET;
+	}
+#ifdef HAVE_INET6
+      else if (len == 16)
+	{
+	  val = (char *) &chars;
+	  type = iaddr->family = AF_INET6;
+	}
+#endif /* HAVE_INET6 */
+      else
+	JvFail ("unrecognized size");
+
+#ifdef HAVE_GETHOSTBYADDR_R
+      while (true)
+	{
+	  int ok;
+#if HAVE_STRUCT_HOSTENT_DATA
+	  ok = ! gethostbyaddr_r (val, len, type, &hent_r, buffer_r);
+#else
+	  int herr = 0;
+#ifdef GETHOSTBYADDR_R_RETURNS_INT
+	  ok = ! gethostbyaddr_r (val, len, type, &hent_r,
+				  buffer_r, size_r, &hptr, &herr);
+#else
+	  hptr = gethostbyaddr_r (val, len, type, &hent_r,
+				  buffer_r, size_r, &herr);
+	  ok = hptr != NULL;
+#endif /* GETHOSTBYADDR_R_RETURNS_INT */
+	  if (! ok && herr == ERANGE)
+	    {
+	      size_r *= 2;
+	      buffer_r = (char *) _Jv_AllocBytes (size_r);
+	    }
+	  else 
+#endif /* HAVE_STRUCT_HOSTENT_DATA */
+	    break;
+	}
+#else /* HAVE_GETHOSTBYADDR_R */
+      // FIXME: this is insufficient if some other piece of code calls
+      // this gethostbyaddr.
+      JvSynchronize sync (java::net::InetAddress::localhostAddress);
+      hptr = gethostbyaddr (val, len, type);
+#endif /* HAVE_GETHOSTBYADDR_R */
+    }
+  if (hptr != NULL)
+    {
+      if (!all)
+        host = JvNewStringUTF (hptr->h_name);
+      java::lang::SecurityException *ex = checkConnect (host);
+      if (ex != NULL)
+	{
+	  if (iaddr == NULL || iaddr->addr == NULL)
+	    throw ex;
+	  hptr = NULL;
+	}
+    }
+  if (hptr == NULL)
+    {
+      if (iaddr != NULL && iaddr->addr != NULL)
+	{
+	  iaddr->hostName = iaddr->getHostAddress();
+	  return NULL;
+	}
+      else
+	throw new java::net::UnknownHostException(host);
+    }
+  int count;
+  if (all)
+    {
+      char** ptr = hptr->h_addr_list;
+      count = 0;
+      while (*ptr++)  count++;
+    }
+  else
+    count = 1;
+  JArray<java::net::InetAddress*> *result;
+  java::net::InetAddress** iaddrs;
+  if (all)
+    {
+      result = java::net::InetAddress::allocArray (count);
+      iaddrs = elements (result);
+    }
+  else
+    {
+      result = NULL;
+      iaddrs = &iaddr;
+    }
+
+  for (int i = 0;  i < count;  i++)
+    {
+      if (iaddrs[i] == NULL)
+	iaddrs[i] = new java::net::InetAddress (NULL, NULL);
+      if (iaddrs[i]->hostName == NULL)
+        iaddrs[i]->hostName = host;
+      if (iaddrs[i]->addr == NULL)
+	{
+	  char *bytes = hptr->h_addr_list[i];
+	  iaddrs[i]->addr = JvNewByteArray (hptr->h_length);
+	  iaddrs[i]->family = getFamily (iaddrs[i]->addr);
+	  memcpy (elements (iaddrs[i]->addr), bytes, hptr->h_length);
+	}
+    }
+  return result;
+}
+
+jstring
+java::net::InetAddress::getLocalHostname ()
+{
+  char *chars;
+#ifdef HAVE_GETHOSTNAME
+  char buffer[MAXHOSTNAMELEN];
+  if (gethostname (buffer, MAXHOSTNAMELEN))
+    return NULL;
+  chars = buffer;
+#elif HAVE_UNAME
+  struct utsname stuff;
+  if (uname (&stuff) != 0)
+    return NULL;
+  chars = stuff.nodename;
+#else
+  return NULL;
+#endif
+  // It is admittedly non-optimal to convert the hostname to Unicode
+  // only to convert it back in getByName, but simplicity wins.  Note
+  // that unless there is a SecurityManager, we only get called once
+  // anyway, thanks to the InetAddress.localhost cache.
+  return JvNewStringUTF (chars);
+}
diff --git a/libjava/java/net/natInetAddressWin32.cc b/libjava/java/net/natInetAddressWin32.cc
new file mode 100644
index 0000000..f6748fd
--- /dev/null
+++ b/libjava/java/net/natInetAddressWin32.cc
@@ -0,0 +1,355 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+
+#ifdef WIN32
+
+#include <windows.h>
+#include <winsock.h>
+#undef STRICT
+
+#ifndef MAXHOSTNAMELEN
+#define MAXHOSTNAMELEN	64
+#endif /* MAXHOSTNAMELEN */
+
+#else /* WIN32 */
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <string.h>
+#include <errno.h>
+
+#include <sys/param.h>
+#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+#endif /* WIN32 */
+
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java/net/InetAddress.h>
+#include <java/net/UnknownHostException.h>
+#include <java/lang/SecurityException.h>
+
+#if defined(HAVE_UNAME) && ! defined(HAVE_GETHOSTNAME)
+#include <sys/utsname.h>
+#endif
+
+#ifndef HAVE_GETHOSTNAME_DECL
+extern "C" int gethostname (char *name, int namelen);
+#endif
+
+#ifdef DISABLE_JAVA_NET
+
+jbyteArray
+java::net::InetAddress::aton (jstring)
+{
+  return NULL;
+}
+
+jint
+java::net::InetAddress::getFamily (jbyteArray bytes)
+{
+  return 0;
+}
+
+JArray<java::net::InetAddress*> *
+java::net::InetAddress::lookup (jstring, java::net::InetAddress *, jboolean)
+{
+  return NULL;
+}
+
+jstring
+java::net::InetAddress::getLocalHostname ()
+{
+  return NULL;
+}
+
+#else /* DISABLE_JAVA_NET */
+
+jbyteArray
+java::net::InetAddress::aton (jstring host)
+{
+  char *hostname;
+  char buf[100];
+  int len = JvGetStringUTFLength(host);
+  if (len < 100)
+    hostname = buf;
+  else
+    hostname = (char*) _Jv_AllocBytes (len+1);
+  JvGetStringUTFRegion (host, 0, host->length(), hostname);
+  buf[len] = '\0';
+  char* bytes = NULL;
+  int blen = 0;
+#ifdef HAVE_INET_ATON
+  struct in_addr laddr;
+  if (inet_aton (hostname, &laddr))
+    {
+      bytes = (char*) &laddr;
+      blen = 4;
+    }
+#elif defined(HAVE_INET_ADDR)
+#if ! HAVE_IN_ADDR_T
+  typedef jint in_addr_t;
+#endif
+  in_addr_t laddr = inet_addr (hostname);
+  if (laddr != (in_addr_t)(-1))
+    {
+      bytes = (char*) &laddr;
+      blen = 4;
+    }
+#endif
+#if defined (HAVE_INET_PTON) && defined (HAVE_INET6)
+  char inet6_addr[16];
+  if (len != 0 && inet_pton (AF_INET6, hostname, inet6_addr) > 0)
+    {
+      bytes = inet6_addr;
+      blen = 16;
+    }
+#endif
+  if (blen == 0)
+    return NULL;
+  jbyteArray result = JvNewByteArray (blen);
+  memcpy (elements (result), bytes, blen);
+  return result;
+}
+
+jint
+java::net::InetAddress::getFamily (jbyteArray bytes)
+{
+  int len = bytes->length;
+  if (len == 4)
+    return AF_INET;
+#ifdef HAVE_INET6
+  else if (len == 16)
+    return AF_INET6;
+#endif /* HAVE_INET6 */
+  else
+    JvFail ("unrecognized size");
+}
+
+
+JArray<java::net::InetAddress*> *
+java::net::InetAddress::lookup (jstring host, java::net::InetAddress* iaddr,
+				jboolean all)
+{
+  struct hostent *hptr = NULL;
+#if defined (HAVE_GETHOSTBYNAME_R) || defined (HAVE_GETHOSTBYADDR_R)
+  struct hostent hent_r;
+#if HAVE_STRUCT_HOSTENT_DATA
+  struct hostent_data fixed_buffer, *buffer_r = &fixed_buffer;
+#else
+#if defined (__GLIBC__) 
+  // FIXME: in glibc, gethostbyname_r returns NETDB_INTERNAL to herr and
+  // ERANGE to errno if the buffer size is too small, rather than what is 
+  // expected here. We work around this by setting a bigger buffer size and 
+  // hoping that it is big enough.
+  char fixed_buffer[1024];
+#else
+  char fixed_buffer[200];
+#endif
+  char *buffer_r = fixed_buffer;
+  int size_r = sizeof (fixed_buffer);
+#endif
+#endif
+
+  if (host != NULL)
+    {
+      char *hostname;
+      char buf[100];
+      int len = JvGetStringUTFLength(host);
+      if (len < 100)
+	hostname = buf;
+      else
+	hostname = (char*) _Jv_AllocBytes (len+1);
+      JvGetStringUTFRegion (host, 0, host->length(), hostname);
+      buf[len] = '\0';
+#ifdef HAVE_GETHOSTBYNAME_R
+      while (true)
+	{
+	  int ok;
+#if HAVE_STRUCT_HOSTENT_DATA
+	  ok = ! gethostbyname_r (hostname, &hent_r, buffer_r);
+#else
+	  int herr = 0;
+#ifdef GETHOSTBYNAME_R_RETURNS_INT
+	  ok = ! gethostbyname_r (hostname, &hent_r, buffer_r, size_r,
+				  &hptr, &herr);
+#else
+	  hptr = gethostbyname_r (hostname, &hent_r, buffer_r, size_r, &herr);
+	  ok = hptr != NULL;
+#endif /* GETHOSTNAME_R_RETURNS_INT */
+	  if (! ok && herr == ERANGE)
+	    {
+	      size_r *= 2;
+	      buffer_r = (char *) _Jv_AllocBytes (size_r);
+	    }
+	  else
+#endif /* HAVE_STRUCT_HOSTENT_DATA */
+	    break;
+	}
+#else
+      // FIXME: this is insufficient if some other piece of code calls
+      // this gethostbyname.
+      JvSynchronize sync (java::net::InetAddress::localhostAddress);
+      hptr = gethostbyname (hostname);
+#endif /* HAVE_GETHOSTBYNAME_R */
+    }
+  else
+    {
+      jbyteArray bytes = iaddr->addr;
+      char *chars = (char*) elements (bytes);
+      int len = bytes->length;
+      int type;
+      char *val;
+      if (len == 4)
+	{
+	  val = chars;
+	  type = iaddr->family = AF_INET;
+	}
+#ifdef HAVE_INET6
+      else if (len == 16)
+	{
+	  val = (char *) &chars;
+	  type = iaddr->family = AF_INET6;
+	}
+#endif /* HAVE_INET6 */
+      else
+	JvFail ("unrecognized size");
+
+#ifdef HAVE_GETHOSTBYADDR_R
+      while (true)
+	{
+	  int ok;
+#if HAVE_STRUCT_HOSTENT_DATA
+	  ok = ! gethostbyaddr_r (val, len, type, &hent_r, buffer_r);
+#else
+	  int herr = 0;
+#ifdef GETHOSTBYADDR_R_RETURNS_INT
+	  ok = ! gethostbyaddr_r (val, len, type, &hent_r,
+				  buffer_r, size_r, &hptr, &herr);
+#else
+	  hptr = gethostbyaddr_r (val, len, type, &hent_r,
+				  buffer_r, size_r, &herr);
+	  ok = hptr != NULL;
+#endif /* GETHOSTBYADDR_R_RETURNS_INT */
+	  if (! ok && herr == ERANGE)
+	    {
+	      size_r *= 2;
+	      buffer_r = (char *) _Jv_AllocBytes (size_r);
+	    }
+	  else 
+#endif /* HAVE_STRUCT_HOSTENT_DATA */
+	    break;
+	}
+#else /* HAVE_GETHOSTBYADDR_R */
+      // FIXME: this is insufficient if some other piece of code calls
+      // this gethostbyaddr.
+      JvSynchronize sync (java::net::InetAddress::localhostAddress);
+      hptr = gethostbyaddr (val, len, type);
+#endif /* HAVE_GETHOSTBYADDR_R */
+    }
+  if (hptr != NULL)
+    {
+      if (!all)
+        host = JvNewStringUTF (hptr->h_name);
+      java::lang::SecurityException *ex = checkConnect (host);
+      if (ex != NULL)
+	{
+	  if (iaddr == NULL || iaddr->addr == NULL)
+	    throw ex;
+	  hptr = NULL;
+	}
+    }
+  if (hptr == NULL)
+    {
+      if (iaddr != NULL && iaddr->addr != NULL)
+	{
+	  iaddr->hostName = iaddr->getHostAddress();
+	  return NULL;
+	}
+      else
+	throw new java::net::UnknownHostException(host);
+    }
+  int count;
+  if (all)
+    {
+      char** ptr = hptr->h_addr_list;
+      count = 0;
+      while (*ptr++)  count++;
+    }
+  else
+    count = 1;
+  JArray<java::net::InetAddress*> *result;
+  java::net::InetAddress** iaddrs;
+  if (all)
+    {
+      result = java::net::InetAddress::allocArray (count);
+      iaddrs = elements (result);
+    }
+  else
+    {
+      result = NULL;
+      iaddrs = &iaddr;
+    }
+
+  for (int i = 0;  i < count;  i++)
+    {
+      if (iaddrs[i] == NULL)
+	iaddrs[i] = new java::net::InetAddress (NULL, NULL);
+      if (iaddrs[i]->hostName == NULL)
+        iaddrs[i]->hostName = host;
+      if (iaddrs[i]->addr == NULL)
+	{
+	  char *bytes = hptr->h_addr_list[i];
+	  iaddrs[i]->addr = JvNewByteArray (hptr->h_length);
+	  iaddrs[i]->family = getFamily (iaddrs[i]->addr);
+	  memcpy (elements (iaddrs[i]->addr), bytes, hptr->h_length);
+	}
+    }
+  return result;
+}
+
+jstring
+java::net::InetAddress::getLocalHostname ()
+{
+  char *chars;
+#ifdef HAVE_GETHOSTNAME
+  char buffer[MAXHOSTNAMELEN];
+  if (gethostname (buffer, MAXHOSTNAMELEN))
+    return NULL;
+  chars = buffer;
+#elif HAVE_UNAME
+  struct utsname stuff;
+  if (uname (&stuff) != 0)
+    return NULL;
+  chars = stuff.nodename;
+#else
+  return NULL;
+#endif
+  // It is admittedly non-optimal to convert the hostname to Unicode
+  // only to convert it back in getByName, but simplicity wins.  Note
+  // that unless there is a SecurityManager, we only get called once
+  // anyway, thanks to the InetAddress.localhost cache.
+  return JvNewStringUTF (chars);
+}
+
+#endif /* DISABLE_JAVA_NET */
diff --git a/libjava/java/net/natNetworkInterfaceNoNet.cc b/libjava/java/net/natNetworkInterfaceNoNet.cc
new file mode 100644
index 0000000..5f3c508
--- /dev/null
+++ b/libjava/java/net/natNetworkInterfaceNoNet.cc
@@ -0,0 +1,21 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#include <java/net/NetworkInterface.h>
+#include <java/net/SocketException.h>
+#include <java/util/Vector.h>
+
+::java::util::Vector*
+java::net::NetworkInterface::getRealNetworkInterfaces ()
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("NetworkInterface.getrealNetworkInterfaces: unimplemented"));
+}
diff --git a/libjava/java/net/natNetworkInterfacePosix.cc b/libjava/java/net/natNetworkInterfacePosix.cc
new file mode 100644
index 0000000..f4c5d6b
--- /dev/null
+++ b/libjava/java/net/natNetworkInterfacePosix.cc
@@ -0,0 +1,115 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include <sys/param.h>
+#include <sys/types.h>
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+#define BSD_COMP /* Get FIONREAD on Solaris2. */
+#include <sys/ioctl.h>
+#endif
+#ifdef HAVE_NET_IF_H
+#include <net/if.h>
+#endif
+
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java/net/NetworkInterface.h>
+#include <java/net/Inet4Address.h>
+#include <java/net/SocketException.h>
+#include <java/util/Vector.h>
+
+::java::util::Vector*
+java::net::NetworkInterface::getRealNetworkInterfaces ()
+{
+  int fd;
+  int num_interfaces = 0;
+  struct ifconf if_data;
+  struct ifreq* if_record;
+  ::java::util::Vector* ht = new ::java::util::Vector ();
+
+  if_data.ifc_len = 0;
+  if_data.ifc_buf = NULL;
+
+  // Open a (random) socket to have a file descriptor for the ioctl calls.
+  fd = _Jv_socket (PF_INET, SOCK_DGRAM, htons (IPPROTO_IP));
+
+  if (fd < 0)
+    throw new ::java::net::SocketException;
+
+  // Get all interfaces. If not enough buffers are available try it
+  // with a bigger buffer size.
+  do
+    {
+      num_interfaces += 16;
+      
+      if_data.ifc_len = sizeof (struct ifreq) * num_interfaces;
+      if_data.ifc_buf =
+        (char*) _Jv_Realloc (if_data.ifc_buf, if_data.ifc_len);
+
+      // Try to get all local interfaces.
+      if (::ioctl (fd, SIOCGIFCONF, &if_data) < 0)
+        throw new java::net::SocketException;
+    }
+  while (if_data.ifc_len >= (sizeof (struct ifreq) * num_interfaces));
+
+  // Get addresses of all interfaces.
+  if_record = if_data.ifc_req;
+
+  for (int n = 0; n < if_data.ifc_len; n += sizeof (struct ifreq))
+    {
+      struct ifreq ifr;
+      
+      memset (&ifr, 0, sizeof (ifr));
+      strcpy (ifr.ifr_name, if_record->ifr_name);
+
+      // Try to get the IPv4-address of the local interface
+      if (::ioctl (fd, SIOCGIFADDR, &ifr) < 0)
+        throw new java::net::SocketException;
+
+      int len = 4;
+      struct sockaddr_in sa = *((sockaddr_in*) &(ifr.ifr_addr));
+
+      jbyteArray baddr = JvNewByteArray (len);
+      memcpy (elements (baddr), &(sa.sin_addr), len);
+      jstring if_name = JvNewStringLatin1 (if_record->ifr_name);
+      Inet4Address* address =
+        new java::net::Inet4Address (baddr, JvNewStringLatin1 (""));
+      ht->add (new NetworkInterface (if_name, address));
+      if_record++;
+    }
+
+#ifdef HAVE_INET6
+      // FIXME: read /proc/net/if_inet6 (on Linux 2.4)
+#endif
+
+  _Jv_Free (if_data.ifc_buf);
+  
+  if (fd >= 0)
+    _Jv_close (fd);
+  
+  return ht;
+}
diff --git a/libjava/java/net/natNetworkInterfaceWin32.cc b/libjava/java/net/natNetworkInterfaceWin32.cc
new file mode 100644
index 0000000..47d68b5
--- /dev/null
+++ b/libjava/java/net/natNetworkInterfaceWin32.cc
@@ -0,0 +1,142 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#ifdef WIN32
+
+#include <windows.h>
+#include <winsock.h>
+#undef STRICT
+
+#else /* WIN32 */
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include <sys/param.h>
+#include <sys/types.h>
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+#define BSD_COMP /* Get FIONREAD on Solaris2. */
+#include <sys/ioctl.h>
+#endif
+#ifdef HAVE_NET_IF_H
+#include <net/if.h>
+#endif
+
+#endif /* WIN32 */
+
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java/net/NetworkInterface.h>
+#include <java/net/Inet4Address.h>
+#include <java/net/SocketException.h>
+#include <java/util/Vector.h>
+
+#ifdef DISABLE_JAVA_NET
+
+::java::util::Vector*
+java::net::NetworkInterface::getRealNetworkInterfaces ()
+{
+  ::java::util::Vector* ht = new ::java::util::Vector();
+  return ht;
+}
+
+#else /* DISABLE_JAVA_NET */
+
+::java::util::Vector*
+java::net::NetworkInterface::getRealNetworkInterfaces ()
+{
+#ifdef WIN32
+  throw new ::java::net::SocketException;
+#else
+  int fd;
+  int num_interfaces = 0;
+  struct ifconf if_data;
+  struct ifreq* if_record;
+  ::java::util::Vector* ht = new ::java::util::Vector ();
+
+  if_data.ifc_len = 0;
+  if_data.ifc_buf = NULL;
+
+  // Open a (random) socket to have a file descriptor for the ioctl calls.
+  fd = _Jv_socket (PF_INET, SOCK_DGRAM, htons (IPPROTO_IP));
+
+  if (fd < 0)
+    throw new ::java::net::SocketException;
+
+  // Get all interfaces. If not enough buffers are available try it
+  // with a bigger buffer size.
+  do
+    {
+      num_interfaces += 16;
+      
+      if_data.ifc_len = sizeof (struct ifreq) * num_interfaces;
+      if_data.ifc_buf =
+        (char*) _Jv_Realloc (if_data.ifc_buf, if_data.ifc_len);
+
+      // Try to get all local interfaces.
+      if (::ioctl (fd, SIOCGIFCONF, &if_data) < 0)
+        throw new java::net::SocketException;
+    }
+  while (if_data.ifc_len >= (sizeof (struct ifreq) * num_interfaces));
+
+  // Get addresses of all interfaces.
+  if_record = if_data.ifc_req;
+
+  for (int n = 0; n < if_data.ifc_len; n += sizeof (struct ifreq))
+    {
+      struct ifreq ifr;
+      
+      memset (&ifr, 0, sizeof (ifr));
+      strcpy (ifr.ifr_name, if_record->ifr_name);
+
+      // Try to get the IPv4-address of the local interface
+      if (::ioctl (fd, SIOCGIFADDR, &ifr) < 0)
+        throw new java::net::SocketException;
+
+      int len = 4;
+      struct sockaddr_in sa = *((sockaddr_in*) &(ifr.ifr_addr));
+
+      jbyteArray baddr = JvNewByteArray (len);
+      memcpy (elements (baddr), &(sa.sin_addr), len);
+      jstring if_name = JvNewStringLatin1 (if_record->ifr_name);
+      Inet4Address* address =
+        new java::net::Inet4Address (baddr, JvNewStringLatin1 (""));
+      ht->add (new NetworkInterface (if_name, address));
+      if_record++;
+    }
+
+#ifdef HAVE_INET6
+      // FIXME: read /proc/net/if_inet6 (on Linux 2.4)
+#endif
+
+  _Jv_Free (if_data.ifc_buf);
+  
+  if (fd >= 0)
+    _Jv_close (fd);
+  
+  return ht;
+#endif /* WIN32 */
+}
+
+#endif // DISABLE_JAVA_NET //
diff --git a/libjava/java/net/natPlainDatagramSocketImplNoNet.cc b/libjava/java/net/natPlainDatagramSocketImplNoNet.cc
new file mode 100644
index 0000000..7c05ee9
--- /dev/null
+++ b/libjava/java/net/natPlainDatagramSocketImplNoNet.cc
@@ -0,0 +1,119 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#include <java/io/IOException.h>
+#include <java/lang/Object.h>
+#include <java/net/BindException.h>
+#include <java/net/DatagramPacketInetAddress.h>
+#include <java/net/InetAddress.h>
+#include <java/net/NetworkInterface.h>
+#include <java/net/PlainDatagramSocketImpl.h>
+#include <java/net/SocketException.h>
+
+void
+java::net::PlainDatagramSocketImpl::create ()
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.create: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::bind (jint, java::net::InetAddress *)
+{
+  throw new BindException (
+    JvNewStringLatin1 ("DatagramSocketImpl.bind: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::connect (java::net::InetAddress *, jint)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.connect: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::disconnect ()
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.disconnect: unimplemented"));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::peek (java::net::InetAddress *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.peek: unimplemented"));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::peekData(java::net::DatagramPacket *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.peekData: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::close ()
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.close: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::send (java::net::DatagramPacket *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.send: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::receive (java::net::DatagramPacket *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.receive: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::setTimeToLive (jint)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.setTimeToLive: unimplemented"));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::getTimeToLive ()
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.getTimeToLive: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::mcastGrp (java::net::InetAddress *,
+                                              java::net::NetworkInterface *,
+					      jboolean)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.mcastGrp: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::setOption (jint, java::lang::Object *)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.setOption: unimplemented"));
+}
+
+java::lang::Object *
+java::net::PlainDatagramSocketImpl::getOption (jint)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.getOption: unimplemented"));
+}
diff --git a/libjava/java/net/natPlainDatagramSocketImplPosix.cc b/libjava/java/net/natPlainDatagramSocketImplPosix.cc
new file mode 100644
index 0000000..14f6fee
--- /dev/null
+++ b/libjava/java/net/natPlainDatagramSocketImplPosix.cc
@@ -0,0 +1,750 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#include <errno.h>
+#include <string.h>
+
+#if HAVE_BSTRING_H
+// Needed for bzero, implicitly used by FD_ZERO on IRIX 5.2 
+#include <bstring.h>
+#endif
+
+#include <gcj/cni.h>
+#include <java/io/IOException.h>
+#include <java/io/InterruptedIOException.h>
+#include <java/net/BindException.h>
+#include <java/net/SocketException.h>
+#include <java/net/PlainDatagramSocketImpl.h>
+#include <java/net/InetAddress.h>
+#include <java/net/NetworkInterface.h>
+#include <java/net/DatagramPacket.h>
+#include <java/net/PortUnreachableException.h>
+#include <java/lang/InternalError.h>
+#include <java/lang/Object.h>
+#include <java/lang/Boolean.h>
+#include <java/lang/Integer.h>
+
+union SockAddr
+{
+  struct sockaddr_in address;
+#ifdef HAVE_INET6
+  struct sockaddr_in6 address6;
+#endif
+};
+
+union McastReq
+{
+#if HAVE_STRUCT_IP_MREQ
+  struct ip_mreq mreq;
+#endif
+#if HAVE_STRUCT_IPV6_MREQ
+  struct ipv6_mreq mreq6;
+#endif
+};
+
+union InAddr
+{
+  struct in_addr addr;
+#ifdef HAVE_INET6
+  struct in6_addr addr6;
+#endif
+};
+
+
+// FIXME: routines here and/or in natPlainSocketImpl.cc could throw
+// NoRouteToHostException; also consider UnknownHostException, ConnectException.
+
+void
+java::net::PlainDatagramSocketImpl::create ()
+{
+  int sock = _Jv_socket (AF_INET, SOCK_DGRAM, 0);
+
+  if (sock < 0)
+    {
+      char* strerr = strerror (errno);
+      throw new java::net::SocketException (JvNewStringUTF (strerr));
+    }
+
+  _Jv_platform_close_on_exec (sock);
+
+  // We use fnum in place of fd here.  From leaving fd null we avoid
+  // the double close problem in FileDescriptor.finalize.
+  fnum = sock;
+}
+
+void
+java::net::PlainDatagramSocketImpl::bind (jint lport,
+					  java::net::InetAddress *host)
+{
+  union SockAddr u;
+  struct sockaddr *ptr = (struct sockaddr *) &u.address;
+  // FIXME: Use getaddrinfo() to get actual protocol instead of assuming ipv4.
+  jbyteArray haddress = host->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+
+  if (len == 4)
+    {
+      u.address.sin_family = AF_INET;
+
+      if (host != NULL)
+        memcpy (&u.address.sin_addr, bytes, len);
+      else
+        u.address.sin_addr.s_addr = htonl (INADDR_ANY);
+
+      len = sizeof (struct sockaddr_in);
+      u.address.sin_port = htons (lport);
+    }
+#ifdef HAVE_INET6
+  else if (len == 16)
+    {
+      u.address6.sin6_family = AF_INET6;
+      memcpy (&u.address6.sin6_addr, bytes, len);
+      len = sizeof (struct sockaddr_in6);
+      u.address6.sin6_port = htons (lport);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  if (_Jv_bind (fnum, ptr, len) == 0)
+    {
+      socklen_t addrlen = sizeof(u);
+
+      if (lport != 0)
+        localPort = lport;
+      else if (::getsockname (fnum, (sockaddr*) &u, &addrlen) == 0)
+        localPort = ntohs (u.address.sin_port);
+      else
+        goto error;
+
+      /* Allow broadcast by default. */
+      int broadcast = 1;
+      if (::setsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &broadcast, 
+                        sizeof (broadcast)) != 0)
+        goto error;
+
+      return;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::BindException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::connect (java::net::InetAddress *, jint)
+{ 
+  throw new ::java::lang::InternalError (JvNewStringLatin1 (
+	    "PlainDatagramSocketImpl::connect: not implemented yet"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::disconnect ()
+{
+  throw new ::java::lang::InternalError (JvNewStringLatin1 (
+	    "PlainDatagramSocketImpl::disconnect: not implemented yet"));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::peek (java::net::InetAddress *i)
+{
+  // FIXME: Deal with Multicast and if the socket is connected.
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  ssize_t retlen =
+    ::recvfrom (fnum, (char *) NULL, 0, MSG_PEEK, (sockaddr*) &u,
+      &addrlen);
+  if (retlen < 0)
+    goto error;
+  // FIXME: Deal with Multicast addressing and if the socket is connected.
+  jbyteArray raddr;
+  jint rport;
+  if (u.address.sin_family == AF_INET)
+    {
+      raddr = JvNewByteArray (4);
+      memcpy (elements (raddr), &u.address.sin_addr, 4);
+      rport = ntohs (u.address.sin_port);
+    }
+#ifdef HAVE_INET6
+  else if (u.address.sin_family == AF_INET6)
+    {
+      raddr = JvNewByteArray (16);
+      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
+      rport = ntohs (u.address6.sin6_port);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));
+
+  i->addr = raddr;
+  return rport;
+ error:
+  char* strerr = strerror (errno);
+
+  if (errno == ECONNREFUSED)
+    throw new PortUnreachableException (JvNewStringUTF (strerr));
+
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::peekData(java::net::DatagramPacket *p)
+{
+  // FIXME: Deal with Multicast and if the socket is connected.
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  jbyte *dbytes = elements (p->getData());
+  ssize_t retlen = 0;
+
+  // Do timeouts via select since SO_RCVTIMEO is not always available.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      fd_set rset;
+      struct timeval tv;
+      FD_ZERO(&rset);
+      FD_SET(fnum, &rset);
+      tv.tv_sec = timeout / 1000;
+      tv.tv_usec = (timeout % 1000) * 1000;
+      int retval;
+      if ((retval = _Jv_select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
+        goto error;
+      else if (retval == 0)
+        throw new java::io::InterruptedIOException ();
+    }
+
+  retlen =
+    ::recvfrom (fnum, (char *) dbytes, p->getLength(), MSG_PEEK, (sockaddr*) &u,
+      &addrlen);
+  if (retlen < 0)
+    goto error;
+  // FIXME: Deal with Multicast addressing and if the socket is connected.
+  jbyteArray raddr;
+  jint rport;
+  if (u.address.sin_family == AF_INET)
+    {
+      raddr = JvNewByteArray (4);
+      memcpy (elements (raddr), &u.address.sin_addr, 4);
+      rport = ntohs (u.address.sin_port);
+    }
+#ifdef HAVE_INET6
+  else if (u.address.sin_family == AF_INET6)
+    {
+      raddr = JvNewByteArray (16);
+      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
+      rport = ntohs (u.address6.sin6_port);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));
+
+  p->setAddress (new InetAddress (raddr, NULL));
+  p->setPort (rport);
+  p->setLength ((jint) retlen);
+  return rport;
+
+ error:
+  char* strerr = strerror (errno);
+
+  if (errno == ECONNREFUSED)
+    throw new PortUnreachableException (JvNewStringUTF (strerr));
+
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+// Close(shutdown) the socket.
+void
+java::net::PlainDatagramSocketImpl::close ()
+{
+  // Avoid races from asynchronous finalization.
+  JvSynchronize sync (this);
+
+  // The method isn't declared to throw anything, so we disregard
+  // the return value.
+  _Jv_close (fnum);
+  fnum = -1;
+  timeout = 0;
+}
+
+void
+java::net::PlainDatagramSocketImpl::send (java::net::DatagramPacket *p)
+{
+  // FIXME: Deal with Multicast and if the socket is connected.
+  jint rport = p->getPort();
+  union SockAddr u;
+  jbyteArray haddress = p->getAddress()->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+  struct sockaddr *ptr = (struct sockaddr *) &u.address;
+  jbyte *dbytes = elements (p->getData());
+  if (len == 4)
+    {
+      u.address.sin_family = AF_INET;
+      memcpy (&u.address.sin_addr, bytes, len);
+      len = sizeof (struct sockaddr_in);
+      u.address.sin_port = htons (rport);
+    }
+#ifdef HAVE_INET6
+  else if (len == 16)
+    {
+      u.address6.sin6_family = AF_INET6;
+      memcpy (&u.address6.sin6_addr, bytes, len);
+      len = sizeof (struct sockaddr_in6);
+      u.address6.sin6_port = htons (rport);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  if (::sendto (fnum, (char *) dbytes, p->getLength(), 0, ptr, len) >= 0)
+    return;
+
+  char* strerr = strerror (errno);
+
+  if (errno == ECONNREFUSED)
+    throw new PortUnreachableException (JvNewStringUTF (strerr));
+
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::receive (java::net::DatagramPacket *p)
+{
+  // FIXME: Deal with Multicast and if the socket is connected.
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  jbyte *dbytes = elements (p->getData());
+  ssize_t retlen = 0;
+
+  // Do timeouts via select since SO_RCVTIMEO is not always available.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      fd_set rset;
+      struct timeval tv;
+      FD_ZERO(&rset);
+      FD_SET(fnum, &rset);
+      tv.tv_sec = timeout / 1000;
+      tv.tv_usec = (timeout % 1000) * 1000;
+      int retval;
+      if ((retval = _Jv_select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
+        goto error;
+      else if (retval == 0)
+        throw new java::io::InterruptedIOException ();
+    }
+
+  retlen =
+    ::recvfrom (fnum, (char *) dbytes, p->getLength(), 0, (sockaddr*) &u,
+      &addrlen);
+  if (retlen < 0)
+    goto error;
+  // FIXME: Deal with Multicast addressing and if the socket is connected.
+  jbyteArray raddr;
+  jint rport;
+  if (u.address.sin_family == AF_INET)
+    {
+      raddr = JvNewByteArray (4);
+      memcpy (elements (raddr), &u.address.sin_addr, 4);
+      rport = ntohs (u.address.sin_port);
+    }
+#ifdef HAVE_INET6
+  else if (u.address.sin_family == AF_INET6)
+    {
+      raddr = JvNewByteArray (16);
+      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
+      rport = ntohs (u.address6.sin6_port);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));
+
+  p->setAddress (new InetAddress (raddr, NULL));
+  p->setPort (rport);
+  p->setLength ((jint) retlen);
+  return;
+
+ error:
+  char* strerr = strerror (errno);
+
+  if (errno == ECONNREFUSED)
+    throw new PortUnreachableException (JvNewStringUTF (strerr));
+
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::setTimeToLive (jint ttl)
+{
+  // Assumes IPPROTO_IP rather than IPPROTO_IPV6 since socket created is IPv4.
+  char val = (char) ttl;
+  socklen_t val_len = sizeof(val);
+
+  if (::setsockopt (fnum, IPPROTO_IP, IP_MULTICAST_TTL, &val, val_len) == 0)
+    return;
+
+  char* strerr = strerror (errno);
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::getTimeToLive ()
+{
+  // Assumes IPPROTO_IP rather than IPPROTO_IPV6 since socket created is IPv4.
+  char val;
+  socklen_t val_len = sizeof(val);
+
+  if (::getsockopt (fnum, IPPROTO_IP, IP_MULTICAST_TTL, &val, &val_len) == 0)
+    return ((int) val) & 0xFF;
+
+  char* strerr = strerror (errno);
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::mcastGrp (java::net::InetAddress *inetaddr,
+                                              java::net::NetworkInterface *,
+					      jboolean join)
+{
+  // FIXME: implement use of NetworkInterface
+
+  union McastReq u;
+  jbyteArray haddress = inetaddr->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+  int level, opname;
+  const char *ptr;
+  if (0)
+    ;
+#if HAVE_STRUCT_IP_MREQ
+  else if (len == 4)
+    {
+      level = IPPROTO_IP;
+      opname = join ? IP_ADD_MEMBERSHIP : IP_DROP_MEMBERSHIP;
+      memcpy (&u.mreq.imr_multiaddr, bytes, len);
+      // FIXME:  If a non-default interface is set, use it; see Stevens p. 501.
+      // Maybe not, see note in last paragraph at bottom of Stevens p. 497.
+      u.mreq.imr_interface.s_addr = htonl (INADDR_ANY); 
+      len = sizeof (struct ip_mreq);
+      ptr = (const char *) &u.mreq;
+    }
+#endif
+#if HAVE_STRUCT_IPV6_MREQ
+  else if (len == 16)
+    {
+      level = IPPROTO_IPV6;
+
+      /* Prefer new RFC 2553 names.  */
+#ifndef IPV6_JOIN_GROUP
+#define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
+#endif
+#ifndef IPV6_LEAVE_GROUP
+#define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
+#endif
+
+      opname = join ? IPV6_JOIN_GROUP : IPV6_LEAVE_GROUP;
+      memcpy (&u.mreq6.ipv6mr_multiaddr, bytes, len);
+      // FIXME:  If a non-default interface is set, use it; see Stevens p. 501.
+      // Maybe not, see note in last paragraph at bottom of Stevens p. 497.
+      u.mreq6.ipv6mr_interface = 0;
+      len = sizeof (struct ipv6_mreq);
+      ptr = (const char *) &u.mreq6;
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  if (::setsockopt (fnum, level, opname, ptr, len) == 0)
+    return;
+
+  char* strerr = strerror (errno);
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::setOption (jint optID,
+					       java::lang::Object *value)
+{
+  int val;
+  socklen_t val_len = sizeof (val);
+
+  if (fnum < 0)
+    throw new java::net::SocketException (JvNewStringUTF ("Socket closed"));
+
+  if (_Jv_IsInstanceOf (value, &java::lang::Boolean::class$))
+    {
+      java::lang::Boolean *boolobj = 
+        static_cast<java::lang::Boolean *> (value);
+      val = boolobj->booleanValue() ? 1 : 0;
+    }
+  else if (_Jv_IsInstanceOf (value, &java::lang::Integer::class$))
+    {
+      java::lang::Integer *intobj = 
+        static_cast<java::lang::Integer *> (value);          
+      val = (int) intobj->intValue();
+    }
+  // Else assume value to be an InetAddress for use with IP_MULTICAST_IF.
+
+  switch (optID) 
+    {
+      case _Jv_TCP_NODELAY_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("TCP_NODELAY not valid for UDP"));
+        return;
+      case _Jv_SO_LINGER_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_LINGER not valid for UDP"));
+        return;
+      case _Jv_SO_KEEPALIVE_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_KEEPALIVE not valid for UDP"));
+        return;
+
+      case _Jv_SO_BROADCAST_ :
+        if (::setsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &val,
+                          val_len) != 0)
+          goto error;
+	break;
+	
+      case _Jv_SO_OOBINLINE_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_OOBINLINE: not valid for UDP"));
+        break;
+	
+      case _Jv_SO_SNDBUF_ :
+      case _Jv_SO_RCVBUF_ :
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+        int opt;
+        optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
+        if (::setsockopt (fnum, SOL_SOCKET, opt, (char *) &val, val_len) != 0)
+	  goto error;    
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
+#endif 
+        return;
+      case _Jv_SO_REUSEADDR_ :
+#if defined(SO_REUSEADDR)
+	if (::setsockopt (fnum, SOL_SOCKET, SO_REUSEADDR, (char *) &val,
+	    val_len) != 0)
+	  goto error;
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_REUSEADDR not supported"));
+#endif 
+	return;
+      case _Jv_SO_BINDADDR_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_BINDADDR: read only option"));
+        return;
+      case _Jv_IP_MULTICAST_IF_ :
+	union InAddr u;
+        jbyteArray haddress;
+	jbyte *bytes;
+	int len;
+	int level, opname;
+	const char *ptr;
+
+	haddress = ((java::net::InetAddress *) value)->addr;
+	bytes = elements (haddress);
+	len = haddress->length;
+	if (len == 4)
+	  {
+	    level = IPPROTO_IP;
+	    opname = IP_MULTICAST_IF;
+	    memcpy (&u.addr, bytes, len);
+	    len = sizeof (struct in_addr);
+	    ptr = (const char *) &u.addr;
+	  }
+// Tru64 UNIX V5.0 has struct sockaddr_in6, but no IPV6_MULTICAST_IF
+#if defined (HAVE_INET6) && defined (IPV6_MULTICAST_IF)
+	else if (len == 16)
+	  {
+	    level = IPPROTO_IPV6;
+	    opname = IPV6_MULTICAST_IF;
+	    memcpy (&u.addr6, bytes, len);
+	    len = sizeof (struct in6_addr);
+	    ptr = (const char *) &u.addr6;
+	  }
+#endif
+	else
+	  throw
+	    new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+	if (::setsockopt (fnum, level, opname, ptr, len) != 0)
+	  goto error;
+        return;
+	
+      case _Jv_IP_MULTICAST_IF2_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_IF2: not yet implemented"));
+        break;
+	
+      case _Jv_IP_MULTICAST_LOOP_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_LOOP: not yet implemented"));
+        break;
+	
+      case _Jv_IP_TOS_ :
+        if (::setsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
+	   val_len) != 0)
+	  goto error;    
+	return;
+	
+      case _Jv_SO_TIMEOUT_ :
+	timeout = val;
+        return;
+      default :
+        errno = ENOPROTOOPT;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::SocketException (JvNewStringUTF (strerr));
+}
+
+java::lang::Object *
+java::net::PlainDatagramSocketImpl::getOption (jint optID)
+{
+  int val;
+  socklen_t val_len = sizeof(val);
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+
+  switch (optID)
+    {
+      case _Jv_TCP_NODELAY_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("TCP_NODELAY not valid for UDP"));
+        break;
+      case _Jv_SO_LINGER_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_LINGER not valid for UDP"));
+        break;    
+      case _Jv_SO_KEEPALIVE_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_KEEPALIVE not valid for UDP"));
+        break;
+	
+      case _Jv_SO_BROADCAST_ :
+	if (::getsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &val,
+	    &val_len) != 0)
+	  goto error;
+	return new java::lang::Boolean (val != 0);
+	
+      case _Jv_SO_OOBINLINE_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_OOBINLINE not valid for UDP"));
+        break;
+      
+      case _Jv_SO_RCVBUF_ :
+      case _Jv_SO_SNDBUF_ :
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+        int opt;
+        optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
+        if (::getsockopt (fnum, SOL_SOCKET, opt, (char *) &val, &val_len) != 0)
+	  goto error;    
+        else
+	  return new java::lang::Integer (val);
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
+#endif    
+	break;
+      case _Jv_SO_BINDADDR_:
+	// cache the local address
+	if (localAddress == NULL)
+	  {	
+	    jbyteArray laddr;
+	    if (::getsockname (fnum, (sockaddr*) &u, &addrlen) != 0)
+	      goto error;
+	    if (u.address.sin_family == AF_INET)
+	      {
+		laddr = JvNewByteArray (4);
+		memcpy (elements (laddr), &u.address.sin_addr, 4);
+	      }
+#ifdef HAVE_INET6
+            else if (u.address.sin_family == AF_INET6)
+	      {
+		laddr = JvNewByteArray (16);
+		memcpy (elements (laddr), &u.address6.sin6_addr, 16);
+	      }
+#endif
+	    else
+	      throw new java::net::SocketException (
+			      JvNewStringUTF ("invalid family"));
+	    localAddress = new java::net::InetAddress (laddr, NULL);
+	  }
+	return localAddress;  
+	break;
+      case _Jv_SO_REUSEADDR_ :
+#if defined(SO_REUSEADDR)
+	if (::getsockopt (fnum, SOL_SOCKET, SO_REUSEADDR, (char *) &val,
+	    &val_len) != 0)
+	  goto error;
+	return new java::lang::Boolean (val != 0);
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_REUSEADDR not supported"));
+#endif 
+	break;
+      case _Jv_IP_MULTICAST_IF_ :
+#ifdef HAVE_INET_NTOA
+	struct in_addr inaddr;
+  	socklen_t inaddr_len;
+	char *bytes;
+
+  	inaddr_len = sizeof(inaddr);
+	if (::getsockopt (fnum, IPPROTO_IP, IP_MULTICAST_IF, (char *) &inaddr,
+	    &inaddr_len) != 0)
+	  goto error;
+
+	bytes = inet_ntoa (inaddr);
+
+	return java::net::InetAddress::getByName (JvNewStringLatin1 (bytes));
+#else
+	throw new java::net::SocketException (
+	  JvNewStringUTF ("IP_MULTICAST_IF: not available - no inet_ntoa()"));
+#endif
+	break;
+      case _Jv_SO_TIMEOUT_ :
+	return new java::lang::Integer (timeout);
+	break;
+	
+      case _Jv_IP_MULTICAST_IF2_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_IF2: not yet implemented"));
+        break;
+	
+      case _Jv_IP_MULTICAST_LOOP_ :
+	if (::getsockopt (fnum, SOL_SOCKET, IP_MULTICAST_LOOP, (char *) &val,
+	    &val_len) != 0)
+	  goto error;
+	return new java::lang::Boolean (val != 0);
+	
+      case _Jv_IP_TOS_ :
+        if (::getsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
+           &val_len) != 0)
+          goto error;
+        return new java::lang::Integer (val);
+	
+      default :
+	errno = ENOPROTOOPT;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::SocketException (JvNewStringUTF (strerr));
+}
diff --git a/libjava/java/net/natPlainDatagramSocketImplWin32.cc b/libjava/java/net/natPlainDatagramSocketImplWin32.cc
new file mode 100644
index 0000000..d0d006d
--- /dev/null
+++ b/libjava/java/net/natPlainDatagramSocketImplWin32.cc
@@ -0,0 +1,872 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#ifdef WIN32
+
+#include <errno.h>
+#include <string.h>
+
+#else /* WIN32 */
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#include <errno.h>
+#include <string.h>
+
+#endif /* WIN32 */
+
+#if HAVE_BSTRING_H
+// Needed for bzero, implicitly used by FD_ZERO on IRIX 5.2 
+#include <bstring.h>
+#endif
+
+#include <gcj/cni.h>
+#include <java/io/IOException.h>
+#include <java/io/InterruptedIOException.h>
+#include <java/net/BindException.h>
+#include <java/net/SocketException.h>
+#include <java/net/PlainDatagramSocketImpl.h>
+#include <java/net/InetAddress.h>
+#include <java/net/NetworkInterface.h>
+#include <java/net/DatagramPacket.h>
+#include <java/net/PortUnreachableException.h>
+#include <java/lang/InternalError.h>
+#include <java/lang/Object.h>
+#include <java/lang/Boolean.h>
+#include <java/lang/Integer.h>
+
+#ifdef DISABLE_JAVA_NET
+
+void
+java::net::PlainDatagramSocketImpl::create ()
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.create: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::bind (jint, java::net::InetAddress *)
+{
+  throw new BindException (
+    JvNewStringLatin1 ("DatagramSocketImpl.bind: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::connect (java::net::InetAddress *, jint)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.connect: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::disconnect ()
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.disconnect: unimplemented"));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::peek (java::net::InetAddress *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.peek: unimplemented"));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::peekData(java::net::DatagramPacket *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.peekData: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::close ()
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.close: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::send (java::net::DatagramPacket *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.send: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::receive (java::net::DatagramPacket *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.receive: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::setTimeToLive (jint)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.setTimeToLive: unimplemented"));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::getTimeToLive ()
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.getTimeToLive: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::mcastGrp (java::net::InetAddress *,
+                                              java::net::NetworkInterface *,
+					      jboolean)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("DatagramSocketImpl.mcastGrp: unimplemented"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::setOption (jint, java::lang::Object *)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.setOption: unimplemented"));
+}
+
+java::lang::Object *
+java::net::PlainDatagramSocketImpl::getOption (jint)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("DatagramSocketImpl.getOption: unimplemented"));
+}
+
+#else /* DISABLE_JAVA_NET */
+
+
+union SockAddr
+{
+  struct sockaddr_in address;
+#ifdef HAVE_INET6
+  struct sockaddr_in6 address6;
+#endif
+};
+
+union McastReq
+{
+#if HAVE_STRUCT_IP_MREQ
+  struct ip_mreq mreq;
+#endif
+#if HAVE_STRUCT_IPV6_MREQ
+  struct ipv6_mreq mreq6;
+#endif
+};
+
+union InAddr
+{
+  struct in_addr addr;
+#ifdef HAVE_INET6
+  struct in6_addr addr6;
+#endif
+};
+
+
+// FIXME: routines here and/or in natPlainSocketImpl.cc could throw
+// NoRouteToHostException; also consider UnknownHostException, ConnectException.
+
+void
+java::net::PlainDatagramSocketImpl::create ()
+{
+  int sock = _Jv_socket (AF_INET, SOCK_DGRAM, 0);
+
+  if (sock < 0)
+    {
+      char* strerr = strerror (errno);
+      throw new java::net::SocketException (JvNewStringUTF (strerr));
+    }
+
+  _Jv_platform_close_on_exec (sock);
+
+  // We use fnum in place of fd here.  From leaving fd null we avoid
+  // the double close problem in FileDescriptor.finalize.
+  fnum = sock;
+}
+
+void
+java::net::PlainDatagramSocketImpl::bind (jint lport,
+					  java::net::InetAddress *host)
+{
+  union SockAddr u;
+  struct sockaddr *ptr = (struct sockaddr *) &u.address;
+  // FIXME: Use getaddrinfo() to get actual protocol instead of assuming ipv4.
+  jbyteArray haddress = host->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+
+  if (len == 4)
+    {
+      u.address.sin_family = AF_INET;
+
+      if (host != NULL)
+        memcpy (&u.address.sin_addr, bytes, len);
+      else
+        u.address.sin_addr.s_addr = htonl (INADDR_ANY);
+
+      len = sizeof (struct sockaddr_in);
+      u.address.sin_port = htons (lport);
+    }
+#ifdef HAVE_INET6
+  else if (len == 16)
+    {
+      u.address6.sin6_family = AF_INET6;
+      memcpy (&u.address6.sin6_addr, bytes, len);
+      len = sizeof (struct sockaddr_in6);
+      u.address6.sin6_port = htons (lport);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  if (_Jv_bind (fnum, ptr, len) == 0)
+    {
+      socklen_t addrlen = sizeof(u);
+
+      if (lport != 0)
+        localPort = lport;
+      else if (::getsockname (fnum, (sockaddr*) &u, &addrlen) == 0)
+        localPort = ntohs (u.address.sin_port);
+      else
+        goto error;
+
+      /* Allow broadcast by default. */
+      int broadcast = 1;
+      if (::setsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &broadcast, 
+                        sizeof (broadcast)) != 0)
+        goto error;
+
+      return;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::BindException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::connect (java::net::InetAddress *, jint)
+{ 
+  throw new ::java::lang::InternalError (JvNewStringLatin1 (
+	    "PlainDatagramSocketImpl::connect: not implemented yet"));
+}
+
+void
+java::net::PlainDatagramSocketImpl::disconnect ()
+{
+  throw new ::java::lang::InternalError (JvNewStringLatin1 (
+	    "PlainDatagramSocketImpl::disconnect: not implemented yet"));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::peek (java::net::InetAddress *i)
+{
+  // FIXME: Deal with Multicast and if the socket is connected.
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  ssize_t retlen =
+    ::recvfrom (fnum, (char *) NULL, 0, MSG_PEEK, (sockaddr*) &u,
+      &addrlen);
+  if (retlen < 0)
+    goto error;
+  // FIXME: Deal with Multicast addressing and if the socket is connected.
+  jbyteArray raddr;
+  jint rport;
+  if (u.address.sin_family == AF_INET)
+    {
+      raddr = JvNewByteArray (4);
+      memcpy (elements (raddr), &u.address.sin_addr, 4);
+      rport = ntohs (u.address.sin_port);
+    }
+#ifdef HAVE_INET6
+  else if (u.address.sin_family == AF_INET6)
+    {
+      raddr = JvNewByteArray (16);
+      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
+      rport = ntohs (u.address6.sin6_port);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));
+
+  i->addr = raddr;
+  return rport;
+ error:
+  char* strerr = strerror (errno);
+
+  if (errno == ECONNREFUSED)
+    throw new PortUnreachableException (JvNewStringUTF (strerr));
+
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::peekData(java::net::DatagramPacket *p)
+{
+  // FIXME: Deal with Multicast and if the socket is connected.
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  jbyte *dbytes = elements (p->getData());
+  ssize_t retlen = 0;
+
+// FIXME: implement timeout support for Win32
+#ifndef WIN32
+  // Do timeouts via select since SO_RCVTIMEO is not always available.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      fd_set rset;
+      struct timeval tv;
+      FD_ZERO(&rset);
+      FD_SET(fnum, &rset);
+      tv.tv_sec = timeout / 1000;
+      tv.tv_usec = (timeout % 1000) * 1000;
+      int retval;
+      if ((retval = _Jv_select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
+        goto error;
+      else if (retval == 0)
+        throw new java::io::InterruptedIOException ();
+    }
+#endif /* WIN32 */
+
+  retlen =
+    ::recvfrom (fnum, (char *) dbytes, p->getLength(), MSG_PEEK, (sockaddr*) &u,
+      &addrlen);
+  if (retlen < 0)
+    goto error;
+  // FIXME: Deal with Multicast addressing and if the socket is connected.
+  jbyteArray raddr;
+  jint rport;
+  if (u.address.sin_family == AF_INET)
+    {
+      raddr = JvNewByteArray (4);
+      memcpy (elements (raddr), &u.address.sin_addr, 4);
+      rport = ntohs (u.address.sin_port);
+    }
+#ifdef HAVE_INET6
+  else if (u.address.sin_family == AF_INET6)
+    {
+      raddr = JvNewByteArray (16);
+      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
+      rport = ntohs (u.address6.sin6_port);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));
+
+  p->setAddress (new InetAddress (raddr, NULL));
+  p->setPort (rport);
+  p->setLength ((jint) retlen);
+  return rport;
+
+ error:
+  char* strerr = strerror (errno);
+
+  if (errno == ECONNREFUSED)
+    throw new PortUnreachableException (JvNewStringUTF (strerr));
+
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+// Close(shutdown) the socket.
+void
+java::net::PlainDatagramSocketImpl::close ()
+{
+  // Avoid races from asynchronous finalization.
+  JvSynchronize sync (this);
+
+  // The method isn't declared to throw anything, so we disregard
+  // the return value.
+  _Jv_close (fnum);
+  fnum = -1;
+  timeout = 0;
+}
+
+void
+java::net::PlainDatagramSocketImpl::send (java::net::DatagramPacket *p)
+{
+  // FIXME: Deal with Multicast and if the socket is connected.
+  jint rport = p->getPort();
+  union SockAddr u;
+  jbyteArray haddress = p->getAddress()->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+  struct sockaddr *ptr = (struct sockaddr *) &u.address;
+  jbyte *dbytes = elements (p->getData());
+  if (len == 4)
+    {
+      u.address.sin_family = AF_INET;
+      memcpy (&u.address.sin_addr, bytes, len);
+      len = sizeof (struct sockaddr_in);
+      u.address.sin_port = htons (rport);
+    }
+#ifdef HAVE_INET6
+  else if (len == 16)
+    {
+      u.address6.sin6_family = AF_INET6;
+      memcpy (&u.address6.sin6_addr, bytes, len);
+      len = sizeof (struct sockaddr_in6);
+      u.address6.sin6_port = htons (rport);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  if (::sendto (fnum, (char *) dbytes, p->getLength(), 0, ptr, len) >= 0)
+    return;
+
+  char* strerr = strerror (errno);
+
+  if (errno == ECONNREFUSED)
+    throw new PortUnreachableException (JvNewStringUTF (strerr));
+
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::receive (java::net::DatagramPacket *p)
+{
+  // FIXME: Deal with Multicast and if the socket is connected.
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  jbyte *dbytes = elements (p->getData());
+  ssize_t retlen = 0;
+
+// FIXME: implement timeout support for Win32
+#ifndef WIN32
+  // Do timeouts via select since SO_RCVTIMEO is not always available.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      fd_set rset;
+      struct timeval tv;
+      FD_ZERO(&rset);
+      FD_SET(fnum, &rset);
+      tv.tv_sec = timeout / 1000;
+      tv.tv_usec = (timeout % 1000) * 1000;
+      int retval;
+      if ((retval = _Jv_select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
+        goto error;
+      else if (retval == 0)
+        throw new java::io::InterruptedIOException ();
+    }
+#endif /* WIN32 */
+
+  retlen =
+    ::recvfrom (fnum, (char *) dbytes, p->getLength(), 0, (sockaddr*) &u,
+      &addrlen);
+  if (retlen < 0)
+    goto error;
+  // FIXME: Deal with Multicast addressing and if the socket is connected.
+  jbyteArray raddr;
+  jint rport;
+  if (u.address.sin_family == AF_INET)
+    {
+      raddr = JvNewByteArray (4);
+      memcpy (elements (raddr), &u.address.sin_addr, 4);
+      rport = ntohs (u.address.sin_port);
+    }
+#ifdef HAVE_INET6
+  else if (u.address.sin_family == AF_INET6)
+    {
+      raddr = JvNewByteArray (16);
+      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
+      rport = ntohs (u.address6.sin6_port);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));
+
+  p->setAddress (new InetAddress (raddr, NULL));
+  p->setPort (rport);
+  p->setLength ((jint) retlen);
+  return;
+
+ error:
+  char* strerr = strerror (errno);
+
+  if (errno == ECONNREFUSED)
+    throw new PortUnreachableException (JvNewStringUTF (strerr));
+
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::setTimeToLive (jint ttl)
+{
+  // Assumes IPPROTO_IP rather than IPPROTO_IPV6 since socket created is IPv4.
+  char val = (char) ttl;
+  socklen_t val_len = sizeof(val);
+
+  if (::setsockopt (fnum, IPPROTO_IP, IP_MULTICAST_TTL, &val, val_len) == 0)
+    return;
+
+  char* strerr = strerror (errno);
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+jint
+java::net::PlainDatagramSocketImpl::getTimeToLive ()
+{
+  // Assumes IPPROTO_IP rather than IPPROTO_IPV6 since socket created is IPv4.
+  char val;
+  socklen_t val_len = sizeof(val);
+
+  if (::getsockopt (fnum, IPPROTO_IP, IP_MULTICAST_TTL, &val, &val_len) == 0)
+    return ((int) val) & 0xFF;
+
+  char* strerr = strerror (errno);
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::mcastGrp (java::net::InetAddress *inetaddr,
+                                              java::net::NetworkInterface *,
+					      jboolean join)
+{
+  // FIXME: implement use of NetworkInterface
+
+  union McastReq u;
+  jbyteArray haddress = inetaddr->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+  int level, opname;
+  const char *ptr;
+  if (0)
+    ;
+#if HAVE_STRUCT_IP_MREQ
+  else if (len == 4)
+    {
+      level = IPPROTO_IP;
+      opname = join ? IP_ADD_MEMBERSHIP : IP_DROP_MEMBERSHIP;
+      memcpy (&u.mreq.imr_multiaddr, bytes, len);
+      // FIXME:  If a non-default interface is set, use it; see Stevens p. 501.
+      // Maybe not, see note in last paragraph at bottom of Stevens p. 497.
+      u.mreq.imr_interface.s_addr = htonl (INADDR_ANY); 
+      len = sizeof (struct ip_mreq);
+      ptr = (const char *) &u.mreq;
+    }
+#endif
+#if HAVE_STRUCT_IPV6_MREQ
+  else if (len == 16)
+    {
+      level = IPPROTO_IPV6;
+
+      /* Prefer new RFC 2553 names.  */
+#ifndef IPV6_JOIN_GROUP
+#define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
+#endif
+#ifndef IPV6_LEAVE_GROUP
+#define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
+#endif
+
+      opname = join ? IPV6_JOIN_GROUP : IPV6_LEAVE_GROUP;
+      memcpy (&u.mreq6.ipv6mr_multiaddr, bytes, len);
+      // FIXME:  If a non-default interface is set, use it; see Stevens p. 501.
+      // Maybe not, see note in last paragraph at bottom of Stevens p. 497.
+      u.mreq6.ipv6mr_interface = 0;
+      len = sizeof (struct ipv6_mreq);
+      ptr = (const char *) &u.mreq6;
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  if (::setsockopt (fnum, level, opname, ptr, len) == 0)
+    return;
+
+  char* strerr = strerror (errno);
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainDatagramSocketImpl::setOption (jint optID,
+					       java::lang::Object *value)
+{
+  int val;
+  socklen_t val_len = sizeof (val);
+
+  if (fnum < 0)
+    throw new java::net::SocketException (JvNewStringUTF ("Socket closed"));
+
+  if (_Jv_IsInstanceOf (value, &java::lang::Boolean::class$))
+    {
+      java::lang::Boolean *boolobj = 
+        static_cast<java::lang::Boolean *> (value);
+      val = boolobj->booleanValue() ? 1 : 0;
+    }
+  else if (_Jv_IsInstanceOf (value, &java::lang::Integer::class$))
+    {
+      java::lang::Integer *intobj = 
+        static_cast<java::lang::Integer *> (value);          
+      val = (int) intobj->intValue();
+    }
+  // Else assume value to be an InetAddress for use with IP_MULTICAST_IF.
+
+  switch (optID) 
+    {
+      case _Jv_TCP_NODELAY_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("TCP_NODELAY not valid for UDP"));
+        return;
+      case _Jv_SO_LINGER_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_LINGER not valid for UDP"));
+        return;
+      case _Jv_SO_KEEPALIVE_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_KEEPALIVE not valid for UDP"));
+        return;
+
+      case _Jv_SO_BROADCAST_ :
+        if (::setsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &val,
+                          val_len) != 0)
+          goto error;
+	break;
+	
+      case _Jv_SO_OOBINLINE_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_OOBINLINE: not valid for UDP"));
+        break;
+	
+      case _Jv_SO_SNDBUF_ :
+      case _Jv_SO_RCVBUF_ :
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+        int opt;
+        optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
+        if (::setsockopt (fnum, SOL_SOCKET, opt, (char *) &val, val_len) != 0)
+	  goto error;    
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
+#endif 
+        return;
+      case _Jv_SO_REUSEADDR_ :
+#if defined(SO_REUSEADDR)
+	if (::setsockopt (fnum, SOL_SOCKET, SO_REUSEADDR, (char *) &val,
+	    val_len) != 0)
+	  goto error;
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_REUSEADDR not supported"));
+#endif 
+	return;
+      case _Jv_SO_BINDADDR_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_BINDADDR: read only option"));
+        return;
+      case _Jv_IP_MULTICAST_IF_ :
+	union InAddr u;
+        jbyteArray haddress;
+	jbyte *bytes;
+	int len;
+	int level, opname;
+	const char *ptr;
+
+	haddress = ((java::net::InetAddress *) value)->addr;
+	bytes = elements (haddress);
+	len = haddress->length;
+	if (len == 4)
+	  {
+	    level = IPPROTO_IP;
+	    opname = IP_MULTICAST_IF;
+	    memcpy (&u.addr, bytes, len);
+	    len = sizeof (struct in_addr);
+	    ptr = (const char *) &u.addr;
+	  }
+// Tru64 UNIX V5.0 has struct sockaddr_in6, but no IPV6_MULTICAST_IF
+#if defined (HAVE_INET6) && defined (IPV6_MULTICAST_IF)
+	else if (len == 16)
+	  {
+	    level = IPPROTO_IPV6;
+	    opname = IPV6_MULTICAST_IF;
+	    memcpy (&u.addr6, bytes, len);
+	    len = sizeof (struct in6_addr);
+	    ptr = (const char *) &u.addr6;
+	  }
+#endif
+	else
+	  throw
+	    new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+	if (::setsockopt (fnum, level, opname, ptr, len) != 0)
+	  goto error;
+        return;
+	
+      case _Jv_IP_MULTICAST_IF2_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_IF2: not yet implemented"));
+        break;
+	
+      case _Jv_IP_MULTICAST_LOOP_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_LOOP: not yet implemented"));
+        break;
+	
+      case _Jv_IP_TOS_ :
+        if (::setsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
+	   val_len) != 0)
+	  goto error;    
+	return;
+	
+      case _Jv_SO_TIMEOUT_ :
+	timeout = val;
+        return;
+      default :
+        errno = ENOPROTOOPT;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::SocketException (JvNewStringUTF (strerr));
+}
+
+java::lang::Object *
+java::net::PlainDatagramSocketImpl::getOption (jint optID)
+{
+  int val;
+  socklen_t val_len = sizeof(val);
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+
+  switch (optID)
+    {
+      case _Jv_TCP_NODELAY_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("TCP_NODELAY not valid for UDP"));
+        break;
+      case _Jv_SO_LINGER_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_LINGER not valid for UDP"));
+        break;    
+      case _Jv_SO_KEEPALIVE_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_KEEPALIVE not valid for UDP"));
+        break;
+	
+      case _Jv_SO_BROADCAST_ :
+	if (::getsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &val,
+	    &val_len) != 0)
+	  goto error;
+	return new java::lang::Boolean (val != 0);
+	
+      case _Jv_SO_OOBINLINE_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_OOBINLINE not valid for UDP"));
+        break;
+      
+      case _Jv_SO_RCVBUF_ :
+      case _Jv_SO_SNDBUF_ :
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+        int opt;
+        optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
+        if (::getsockopt (fnum, SOL_SOCKET, opt, (char *) &val, &val_len) != 0)
+	  goto error;    
+        else
+	  return new java::lang::Integer (val);
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
+#endif    
+	break;
+      case _Jv_SO_BINDADDR_:
+	// cache the local address
+	if (localAddress == NULL)
+	  {	
+	    jbyteArray laddr;
+	    if (::getsockname (fnum, (sockaddr*) &u, &addrlen) != 0)
+	      goto error;
+	    if (u.address.sin_family == AF_INET)
+	      {
+		laddr = JvNewByteArray (4);
+		memcpy (elements (laddr), &u.address.sin_addr, 4);
+	      }
+#ifdef HAVE_INET6
+            else if (u.address.sin_family == AF_INET6)
+	      {
+		laddr = JvNewByteArray (16);
+		memcpy (elements (laddr), &u.address6.sin6_addr, 16);
+	      }
+#endif
+	    else
+	      throw new java::net::SocketException (
+			      JvNewStringUTF ("invalid family"));
+	    localAddress = new java::net::InetAddress (laddr, NULL);
+	  }
+	return localAddress;  
+	break;
+      case _Jv_SO_REUSEADDR_ :
+#if defined(SO_REUSEADDR)
+	if (::getsockopt (fnum, SOL_SOCKET, SO_REUSEADDR, (char *) &val,
+	    &val_len) != 0)
+	  goto error;
+	return new java::lang::Boolean (val != 0);
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_REUSEADDR not supported"));
+#endif 
+	break;
+      case _Jv_IP_MULTICAST_IF_ :
+#ifdef HAVE_INET_NTOA
+	struct in_addr inaddr;
+  	socklen_t inaddr_len;
+	char *bytes;
+
+  	inaddr_len = sizeof(inaddr);
+	if (::getsockopt (fnum, IPPROTO_IP, IP_MULTICAST_IF, (char *) &inaddr,
+	    &inaddr_len) != 0)
+	  goto error;
+
+	bytes = inet_ntoa (inaddr);
+
+	return java::net::InetAddress::getByName (JvNewStringLatin1 (bytes));
+#else
+	throw new java::net::SocketException (
+	  JvNewStringUTF ("IP_MULTICAST_IF: not available - no inet_ntoa()"));
+#endif
+	break;
+      case _Jv_SO_TIMEOUT_ :
+	return new java::lang::Integer (timeout);
+	break;
+	
+      case _Jv_IP_MULTICAST_IF2_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_IF2: not yet implemented"));
+        break;
+	
+      case _Jv_IP_MULTICAST_LOOP_ :
+	if (::getsockopt (fnum, SOL_SOCKET, IP_MULTICAST_LOOP, (char *) &val,
+	    &val_len) != 0)
+	  goto error;
+	return new java::lang::Boolean (val != 0);
+	
+      case _Jv_IP_TOS_ :
+        if (::getsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
+           &val_len) != 0)
+          goto error;
+        return new java::lang::Integer (val);
+	
+      default :
+	errno = ENOPROTOOPT;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::SocketException (JvNewStringUTF (strerr));
+}
+
+#endif /* DISABLE_JAVA_NET */
diff --git a/libjava/java/net/natPlainSocketImplNoNet.cc b/libjava/java/net/natPlainSocketImplNoNet.cc
new file mode 100644
index 0000000..67270df
--- /dev/null
+++ b/libjava/java/net/natPlainSocketImplNoNet.cc
@@ -0,0 +1,124 @@
+/* Copyright (C) 2003 Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#include <java/net/PlainSocketImpl.h>
+
+void
+java::net::PlainSocketImpl::create (jboolean)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("SocketImpl.create: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::bind (java::net::InetAddress *, jint)
+{
+  throw new BindException (
+    JvNewStringLatin1 ("SocketImpl.bind: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::connect (java::net::SocketAddress *, jint)
+{
+  throw new ConnectException (
+    JvNewStringLatin1 ("SocketImpl.connect: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::listen (jint)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("SocketImpl.listen: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::accept (java::net::PlainSocketImpl *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("SocketImpl.accept: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::setOption (jint, java::lang::Object *)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.setOption: unimplemented"));
+}
+
+java::lang::Object *
+java::net::PlainSocketImpl::getOption (jint)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.getOption: unimplemented"));
+}
+
+jint
+java::net::PlainSocketImpl::read(void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.read: unimplemented"));
+}
+
+jint
+java::net::PlainSocketImpl::read(jbyteArray buffer, jint offset, jint count)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.read: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::write(jint b)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.write: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::write(jbyteArray b, jint offset, jint len)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.write: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::sendUrgentData(jint data)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.sendUrgentData: unimplemented"));
+}
+
+jint
+java::net::PlainSocketImpl::available(void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.available: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::close(void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.close: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::shutdownInput (void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.shutdownInput: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::shutdownOutput (void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.shutdownOutput: unimplemented"));
+}
diff --git a/libjava/java/net/natPlainSocketImplPosix.cc b/libjava/java/net/natPlainSocketImplPosix.cc
new file mode 100644
index 0000000..65feac8
--- /dev/null
+++ b/libjava/java/net/natPlainSocketImplPosix.cc
@@ -0,0 +1,856 @@
+/* Copyright (C) 2003  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#ifdef HAVE_SYS_IOCTL_H
+#define BSD_COMP /* Get FIONREAD on Solaris2. */
+#include <sys/ioctl.h>
+#endif
+
+// Pick up FIONREAD on Solaris 2.5.
+#ifdef HAVE_SYS_FILIO_H
+#include <sys/filio.h>
+#endif
+
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <errno.h>
+#include <string.h>
+
+#if HAVE_BSTRING_H
+// Needed for bzero, implicitly used by FD_ZERO on IRIX 5.2 
+#include <bstring.h>
+#endif
+
+#include <gcj/cni.h>
+#include <gcj/javaprims.h>
+#include <java/io/IOException.h>
+#include <java/io/InterruptedIOException.h>
+#include <java/net/BindException.h>
+#include <java/net/ConnectException.h>
+#include <java/net/PlainSocketImpl.h>
+#include <java/net/InetAddress.h>
+#include <java/net/InetSocketAddress.h>
+#include <java/net/SocketException.h>
+#include <java/net/SocketTimeoutException.h>
+#include <java/lang/InternalError.h>
+#include <java/lang/Object.h>
+#include <java/lang/Boolean.h>
+#include <java/lang/Class.h>
+#include <java/lang/Integer.h>
+#include <java/lang/Thread.h>
+#include <java/lang/NullPointerException.h>
+#include <java/lang/ArrayIndexOutOfBoundsException.h>
+#include <java/lang/IllegalArgumentException.h>
+
+union SockAddr
+{
+  struct sockaddr_in address;
+#ifdef HAVE_INET6
+  struct sockaddr_in6 address6;
+#endif
+};
+
+void
+java::net::PlainSocketImpl::create (jboolean stream)
+{
+  int sock = _Jv_socket (AF_INET, stream ? SOCK_STREAM : SOCK_DGRAM, 0);
+
+  if (sock < 0)
+    {
+      char* strerr = strerror (errno);
+      throw new java::io::IOException (JvNewStringUTF (strerr));
+    }
+
+  _Jv_platform_close_on_exec (sock);
+
+  // We use fnum in place of fd here.  From leaving fd null we avoid
+  // the double close problem in FileDescriptor.finalize.
+  fnum = sock;
+}
+
+void
+java::net::PlainSocketImpl::bind (java::net::InetAddress *host, jint lport)
+{
+  union SockAddr u;
+  struct sockaddr *ptr = (struct sockaddr *) &u.address;
+  jbyteArray haddress = host->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+  int i = 1;
+
+  if (len == 4)
+    {
+      u.address.sin_family = AF_INET;
+
+      if (host != NULL)
+        memcpy (&u.address.sin_addr, bytes, len);
+      else
+        u.address.sin_addr.s_addr = htonl (INADDR_ANY);
+
+      len = sizeof (struct sockaddr_in);
+      u.address.sin_port = htons (lport);
+    }
+#ifdef HAVE_INET6
+  else if (len == 16)
+    {
+      u.address6.sin6_family = AF_INET6;
+      memcpy (&u.address6.sin6_addr, bytes, len);
+      len = sizeof (struct sockaddr_in6);
+      u.address6.sin6_port = htons (lport);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  // Enable SO_REUSEADDR, so that servers can reuse ports left in TIME_WAIT.
+  ::setsockopt(fnum, SOL_SOCKET, SO_REUSEADDR, (char *) &i, sizeof(i));
+  
+  if (_Jv_bind (fnum, ptr, len) == 0)
+    {
+      address = host;
+      socklen_t addrlen = sizeof(u);
+
+      if (lport != 0)
+        localport = lport;
+      else if (::getsockname (fnum, (sockaddr*) &u, &addrlen) == 0)
+        localport = ntohs (u.address.sin_port);
+      else
+        goto error;
+
+      return;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::BindException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainSocketImpl::connect (java::net::SocketAddress *addr,
+                                     jint timeout)
+{
+  java::net::InetSocketAddress *tmp = (java::net::InetSocketAddress*) addr;
+  java::net::InetAddress *host = tmp->getAddress();
+  jint rport = tmp->getPort();
+	
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  jbyteArray haddress = host->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+  struct sockaddr *ptr = (struct sockaddr *) &u.address;
+  if (len == 4)
+    {
+      u.address.sin_family = AF_INET;
+      memcpy (&u.address.sin_addr, bytes, len);
+      len = sizeof (struct sockaddr_in);
+      u.address.sin_port = htons (rport);
+    }
+#ifdef HAVE_INET6
+  else if (len == 16)
+    {
+      u.address6.sin6_family = AF_INET6;
+      memcpy (&u.address6.sin6_addr, bytes, len);
+      len = sizeof (struct sockaddr_in6);
+      u.address6.sin6_port = htons (rport);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  if (timeout > 0)
+    {
+      int flags = ::fcntl (fnum, F_GETFL);
+      ::fcntl (fnum, F_SETFL, flags | O_NONBLOCK);
+      
+      if ((_Jv_connect (fnum, ptr, len) != 0) && (errno != EINPROGRESS))
+        goto error;
+
+      fd_set rset;
+      struct timeval tv;
+      FD_ZERO(&rset);
+      FD_SET(fnum, &rset);
+      tv.tv_sec = timeout / 1000;
+      tv.tv_usec = (timeout % 1000) * 1000;
+      int retval;
+      
+      if ((retval = _Jv_select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
+        goto error;
+      else if (retval == 0)
+        throw new java::net::SocketTimeoutException
+          (JvNewStringUTF ("Connect timed out"));
+    }
+  else
+    {
+      if (_Jv_connect (fnum, ptr, len) != 0)
+        goto error;
+    }
+
+  address = host;
+  port = rport;
+
+  // A bind may not have been done on this socket; if so, set localport now.
+  if (localport == 0)
+    {
+      if (::getsockname (fnum, (sockaddr*) &u, &addrlen) == 0)
+        localport = ntohs (u.address.sin_port);
+      else
+        goto error;
+    }
+
+  return;  
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::ConnectException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainSocketImpl::listen (jint backlog)
+{
+  if (::listen (fnum, backlog) != 0)
+    {
+      char* strerr = strerror (errno);
+      throw new java::io::IOException (JvNewStringUTF (strerr));
+    }
+}
+
+void
+java::net::PlainSocketImpl::accept (java::net::PlainSocketImpl *s)
+{
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  int new_socket = 0; 
+
+  // Do timeouts via select since SO_RCVTIMEO is not always available.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      fd_set rset;
+      struct timeval tv;
+      FD_ZERO(&rset);
+      FD_SET(fnum, &rset);
+      tv.tv_sec = timeout / 1000;
+      tv.tv_usec = (timeout % 1000) * 1000;
+      int retval;
+      if ((retval = _Jv_select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
+        goto error;
+      else if (retval == 0)
+        throw new java::io::InterruptedIOException (
+	                                  JvNewStringUTF("Accept timed out"));
+    }
+
+  new_socket = _Jv_accept (fnum, (sockaddr*) &u, &addrlen);
+
+  if (new_socket < 0)
+    goto error;
+
+  _Jv_platform_close_on_exec (new_socket);
+
+  jbyteArray raddr;
+  jint rport;
+  if (u.address.sin_family == AF_INET)
+    {
+      raddr = JvNewByteArray (4);
+      memcpy (elements (raddr), &u.address.sin_addr, 4);
+      rport = ntohs (u.address.sin_port);
+    }
+#ifdef HAVE_INET6
+  else if (u.address.sin_family == AF_INET6)
+    {
+      raddr = JvNewByteArray (16);
+      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
+      rport = ntohs (u.address6.sin6_port);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));
+
+  s->fnum = new_socket;
+  s->localport = localport;
+  s->address = new InetAddress (raddr, NULL);
+  s->port = rport;
+  return;
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+// Close(shutdown) the socket.
+void
+java::net::PlainSocketImpl::close()
+{
+  // Avoid races from asynchronous finalization.
+  JvSynchronize sync (this);
+
+  // should we use shutdown here? how would that effect so_linger?
+  int res = _Jv_close (fnum);
+
+  if (res == -1)
+    {
+      // These three errors are not errors according to tests performed
+      // on the reference implementation.
+      if (errno != ENOTCONN && errno != ECONNRESET && errno != EBADF)
+        throw new java::io::IOException  (JvNewStringUTF (strerror (errno)));
+    }
+  // Safe place to reset the file pointer.
+  fnum = -1;
+  timeout = 0;
+}
+
+// Write a byte to the socket.
+void
+java::net::PlainSocketImpl::write(jint b)
+{
+  jbyte d =(jbyte) b;
+  int r = 0;
+
+  while (r != 1)
+    {
+      r = _Jv_write (fnum, &d, 1);
+      if (r == -1)
+        {
+          if (java::lang::Thread::interrupted())
+            {
+              java::io::InterruptedIOException *iioe
+                = new java::io::InterruptedIOException 
+                (JvNewStringLatin1 (strerror (errno)));
+              iioe->bytesTransferred = 0;
+              throw iioe;
+            }
+          // Some errors should not cause exceptions.
+          if (errno != ENOTCONN && errno != ECONNRESET && errno != EBADF)
+            throw new java::io::IOException (JvNewStringUTF (strerror (errno)));
+          break;
+        }
+    }
+}
+
+// Write some bytes to the socket.
+void
+java::net::PlainSocketImpl::write(jbyteArray b, jint offset, jint len)
+{
+  if (! b)
+    throw new java::lang::NullPointerException;
+  if (offset < 0 || len < 0 || offset + len > JvGetArrayLength (b))
+    throw new java::lang::ArrayIndexOutOfBoundsException;
+
+  jbyte *bytes = elements (b) + offset;
+  int written = 0;
+
+  while (len > 0)
+    {
+      int r = _Jv_write (fnum, bytes, len);
+
+      if (r == -1)
+        {
+          if (java::lang::Thread::interrupted())
+            {
+              java::io::InterruptedIOException *iioe
+                = new java::io::InterruptedIOException
+                (JvNewStringLatin1 (strerror (errno)));
+              iioe->bytesTransferred = written;
+              throw iioe;
+            }
+          // Some errors should not cause exceptions.
+          if (errno != ENOTCONN && errno != ECONNRESET && errno != EBADF)
+            throw new java::io::IOException (JvNewStringUTF (strerror (errno)));
+          break;
+        }
+
+      written += r;
+      len -= r;
+      bytes += r;
+    }
+}
+
+void
+java::net::PlainSocketImpl::sendUrgentData (jint)
+{
+  throw new SocketException (JvNewStringLatin1 (
+    "PlainSocketImpl: sending of urgent data not supported by this socket"));
+}
+
+// Read a single byte from the socket.
+jint
+java::net::PlainSocketImpl::read(void)
+{
+  jbyte b;
+
+  // Do timeouts via select.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      // Create the file descriptor set.
+      fd_set read_fds;
+      FD_ZERO (&read_fds);
+      FD_SET (fnum,&read_fds);
+      // Create the timeout struct based on our internal timeout value.
+      struct timeval timeout_value;
+      timeout_value.tv_sec = timeout / 1000;
+      timeout_value.tv_usec = (timeout % 1000) * 1000;
+      // Select on the fds.
+      int sel_retval =
+        _Jv_select (fnum + 1, &read_fds, NULL, NULL, &timeout_value);
+      // If select returns 0 we've waited without getting data...
+      // that means we've timed out.
+      if (sel_retval == 0)
+        throw new java::io::InterruptedIOException
+          (JvNewStringUTF ("read timed out") );
+      // If select returns ok we know we either got signalled or read some data...
+      // either way we need to try to read.
+    }
+
+  int r = _Jv_read (fnum, &b, 1);
+
+  if (r == 0)
+    return -1;
+
+  if (java::lang::Thread::interrupted())
+    {
+      java::io::InterruptedIOException *iioe =
+        new java::io::InterruptedIOException
+        (JvNewStringUTF("read interrupted"));
+      iioe->bytesTransferred = r == -1 ? 0 : r;
+      throw iioe;
+    }
+  else if (r == -1)
+    {
+      // Some errors cause us to return end of stream...
+      if (errno == ENOTCONN)
+        return -1;
+
+      // Other errors need to be signalled.
+      throw new java::io::IOException (JvNewStringUTF (strerror (errno)));
+    }
+
+  return b & 0xFF;
+}
+
+// Read count bytes into the buffer, starting at offset.
+jint
+java::net::PlainSocketImpl::read(jbyteArray buffer, jint offset, jint count)
+{
+  if (! buffer)
+    throw new java::lang::NullPointerException;
+
+  jsize bsize = JvGetArrayLength (buffer);
+
+  if (offset < 0 || count < 0 || offset + count > bsize)
+    throw new java::lang::ArrayIndexOutOfBoundsException;
+
+  jbyte *bytes = elements (buffer) + offset;
+
+  // Do timeouts via select.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      // Create the file descriptor set.
+      fd_set read_fds;
+      FD_ZERO (&read_fds);
+      FD_SET (fnum, &read_fds);
+      // Create the timeout struct based on our internal timeout value.
+      struct timeval timeout_value;
+      timeout_value.tv_sec = timeout / 1000;
+      timeout_value.tv_usec =(timeout % 1000) * 1000;
+      // Select on the fds.
+      int sel_retval =
+        _Jv_select (fnum + 1, &read_fds, NULL, NULL, &timeout_value);
+      // We're only interested in the 0 return.
+      // error returns still require us to try to read 
+      // the socket to see what happened.
+      if (sel_retval == 0)
+        {
+          java::io::InterruptedIOException *iioe =
+            new java::io::InterruptedIOException
+            (JvNewStringUTF ("read interrupted"));
+          iioe->bytesTransferred = 0;
+          throw iioe;
+        }
+    }
+
+  // Read the socket.
+  int r = ::recv (fnum, (char *) bytes, count, 0);
+
+  if (r == 0)
+    return -1;
+
+  if (java::lang::Thread::interrupted())
+    {
+      java::io::InterruptedIOException *iioe =
+        new java::io::InterruptedIOException
+        (JvNewStringUTF ("read interrupted"));
+      iioe->bytesTransferred = r == -1 ? 0 : r;
+      throw iioe;
+    }
+  else if (r == -1)
+    {
+      // Some errors cause us to return end of stream...
+      if (errno == ENOTCONN)
+        return -1;
+
+      // Other errors need to be signalled.
+      throw new java::io::IOException (JvNewStringUTF (strerror (errno)));
+    }
+
+  return r;
+}
+
+// How many bytes are available?
+jint
+java::net::PlainSocketImpl::available(void)
+{
+#if defined(FIONREAD) || defined(HAVE_SELECT)
+  long num = 0;
+  int r = 0;
+  bool num_set = false;
+
+#if defined(FIONREAD)
+  r = ::ioctl (fnum, FIONREAD, &num);
+
+  if (r == -1 && errno == ENOTTY)
+    {
+      // If the ioctl doesn't work, we don't care.
+      r = 0;
+      num = 0;
+    }
+  else
+    num_set = true;
+#elif defined(HAVE_SELECT)
+  if (fnum < 0)
+    {
+      errno = EBADF;
+      r = -1;
+    }
+#endif
+
+  if (r == -1)
+    {
+    posix_error:
+      throw new java::io::IOException(JvNewStringUTF(strerror(errno)));
+    }
+
+  // If we didn't get anything we can use select.
+
+#if defined(HAVE_SELECT)
+  if (! num_set)
+    if (! num_set && fnum >= 0 && fnum < FD_SETSIZE)
+      {
+        fd_set rd;
+        FD_ZERO (&rd);
+        FD_SET (fnum, &rd);
+        struct timeval tv;
+        tv.tv_sec = 0;
+        tv.tv_usec = 0;
+        r = _Jv_select (fnum + 1, &rd, NULL, NULL, &tv);
+        if(r == -1)
+          goto posix_error;
+        num = r == 0 ? 0 : 1;
+      }
+#endif /* HAVE_SELECT */
+
+  return (jint) num;
+#else
+  throw new java::io::IOException (JvNewStringUTF ("unimplemented"));
+#endif
+}
+
+void
+java::net::PlainSocketImpl::setOption (jint optID, java::lang::Object *value)
+{
+  int val;
+  socklen_t val_len = sizeof (val);
+
+  if (fnum < 0)
+    throw new java::net::SocketException (JvNewStringUTF ("Socket closed"));
+
+  if (_Jv_IsInstanceOf (value, &java::lang::Boolean::class$))
+    {
+      java::lang::Boolean *boolobj = 
+        static_cast<java::lang::Boolean *> (value);
+      if (boolobj->booleanValue())
+        val = 1; 
+      else 
+        {
+          if (optID == _Jv_SO_LINGER_)
+            val = -1;
+          else
+            val = 0;
+        }
+    }
+  else if (_Jv_IsInstanceOf (value, &java::lang::Integer::class$))
+    {
+      java::lang::Integer *intobj = 
+        static_cast<java::lang::Integer *> (value);          
+      val = (int) intobj->intValue();
+    }
+  else
+    {
+      throw new java::lang::IllegalArgumentException (
+        JvNewStringLatin1 ("`value' must be Boolean or Integer"));
+    }
+
+  switch (optID) 
+    {
+      case _Jv_TCP_NODELAY_ :
+#ifdef TCP_NODELAY
+        if (::setsockopt (fnum, IPPROTO_TCP, TCP_NODELAY, (char *) &val,
+                          val_len) != 0)
+          goto error;
+#else
+        throw new java::lang::InternalError
+          (JvNewStringUTF ("TCP_NODELAY not supported"));
+#endif /* TCP_NODELAY */
+        return;
+
+      case _Jv_SO_KEEPALIVE_ :
+        if (::setsockopt (fnum, SOL_SOCKET, SO_KEEPALIVE, (char *) &val,
+                          val_len) != 0)
+          goto error;
+        break;
+      
+      case _Jv_SO_BROADCAST_ :
+        throw new java::net::SocketException
+          (JvNewStringUTF ("SO_BROADCAST not valid for TCP"));
+        break;
+	
+      case _Jv_SO_OOBINLINE_ :
+        if (::setsockopt (fnum, SOL_SOCKET, SO_OOBINLINE, (char *) &val,
+                          val_len) != 0)
+          goto error;
+        break;
+
+      case _Jv_SO_LINGER_ :
+#ifdef SO_LINGER
+        struct linger l_val;
+        l_val.l_onoff = (val != -1);
+        l_val.l_linger = val;
+
+        if (::setsockopt (fnum, SOL_SOCKET, SO_LINGER, (char *) &l_val,
+                          sizeof(l_val)) != 0)
+          goto error;    
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_LINGER not supported"));
+#endif /* SO_LINGER */
+        return;
+
+      case _Jv_SO_SNDBUF_ :
+      case _Jv_SO_RCVBUF_ :
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+        int opt;
+        optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
+        if (::setsockopt (fnum, SOL_SOCKET, opt, (char *) &val, val_len) != 0)
+          goto error;    
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
+#endif 
+        return;
+
+      case _Jv_SO_BINDADDR_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_BINDADDR: read only option"));
+        return;
+
+      case _Jv_IP_MULTICAST_IF_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_IF: not valid for TCP"));
+        return;
+	
+      case _Jv_IP_MULTICAST_IF2_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_IF2: not valid for TCP"));
+        break;
+	
+      case _Jv_IP_MULTICAST_LOOP_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_LOOP: not valid for TCP"));
+        break;
+	
+      case _Jv_IP_TOS_ :
+        if (::setsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
+                          val_len) != 0)
+          goto error;    
+        break;
+	
+      case _Jv_SO_REUSEADDR_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_REUSEADDR: not valid for TCP"));
+        return;
+
+      case _Jv_SO_TIMEOUT_ :
+        timeout = val;
+        return;
+
+      default :
+        errno = ENOPROTOOPT;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::SocketException (JvNewStringUTF (strerr));
+}
+
+java::lang::Object *
+java::net::PlainSocketImpl::getOption (jint optID)
+{
+  int val;
+  socklen_t val_len = sizeof(val);
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  struct linger l_val;
+  socklen_t l_val_len = sizeof(l_val);
+
+  switch (optID)
+    {
+#ifdef TCP_NODELAY
+    case _Jv_TCP_NODELAY_ :
+      if (::getsockopt (fnum, IPPROTO_TCP, TCP_NODELAY, (char *) &val,
+                        &val_len) != 0)
+        goto error;
+      else
+        return new java::lang::Boolean (val != 0);
+#else
+      throw new java::lang::InternalError
+        (JvNewStringUTF ("TCP_NODELAY not supported"));
+#endif       
+      break;
+      
+    case _Jv_SO_LINGER_ :
+#ifdef SO_LINGER
+      if (::getsockopt (fnum, SOL_SOCKET, SO_LINGER, (char *) &l_val,
+                        &l_val_len) != 0)
+        goto error;    
+ 
+      if (l_val.l_onoff)
+        return new java::lang::Integer (l_val.l_linger);
+      else
+        return new java::lang::Boolean ((jboolean)false);
+#else
+      throw new java::lang::InternalError
+        (JvNewStringUTF ("SO_LINGER not supported"));
+#endif
+      break;    
+
+    case _Jv_SO_KEEPALIVE_ :
+      if (::getsockopt (fnum, SOL_SOCKET, SO_KEEPALIVE, (char *) &val,
+                        &val_len) != 0)
+        goto error;
+      else
+        return new java::lang::Boolean (val != 0);
+
+    case _Jv_SO_BROADCAST_ :
+      if (::getsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &val,
+                        &val_len) != 0)
+        goto error;    
+      return new java::lang::Boolean ((jboolean)val);
+	
+    case _Jv_SO_OOBINLINE_ :
+      if (::getsockopt (fnum, SOL_SOCKET, SO_OOBINLINE, (char *) &val,
+                        &val_len) != 0)
+        goto error;    
+      return new java::lang::Boolean ((jboolean)val);
+	
+    case _Jv_SO_RCVBUF_ :
+    case _Jv_SO_SNDBUF_ :
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+      int opt;
+      optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
+      if (::getsockopt (fnum, SOL_SOCKET, opt, (char *) &val, &val_len) != 0)
+        goto error;    
+      else
+        return new java::lang::Integer (val);
+#else
+      throw new java::lang::InternalError
+        (JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
+#endif    
+      break;
+    case _Jv_SO_BINDADDR_:
+      // cache the local address 
+      if (localAddress == NULL)
+        {
+          jbyteArray laddr;
+
+          if (::getsockname (fnum, (sockaddr*) &u, &addrlen) != 0)
+            goto error;
+
+          if (u.address.sin_family == AF_INET)
+            {
+              laddr = JvNewByteArray (4);
+              memcpy (elements (laddr), &u.address.sin_addr, 4);
+            }
+#ifdef HAVE_INET6
+          else if (u.address.sin_family == AF_INET6)
+            {
+              laddr = JvNewByteArray (16);
+              memcpy (elements (laddr), &u.address6.sin6_addr, 16);
+            }
+#endif
+          else
+            throw new java::net::SocketException
+              (JvNewStringUTF ("invalid family"));
+          localAddress = new java::net::InetAddress (laddr, NULL);
+        }
+
+      return localAddress;
+      break;
+    case _Jv_IP_MULTICAST_IF_ :
+      throw new java::net::SocketException
+        (JvNewStringUTF ("IP_MULTICAST_IF: not valid for TCP"));
+      break;
+	
+    case _Jv_IP_MULTICAST_IF2_ :
+      throw new java::net::SocketException
+        (JvNewStringUTF ("IP_MULTICAST_IF2: not valid for TCP"));
+      break;
+	
+    case _Jv_IP_MULTICAST_LOOP_ :
+      throw new java::net::SocketException
+        (JvNewStringUTF ("IP_MULTICAST_LOOP: not valid for TCP"));
+      break;
+	
+    case _Jv_IP_TOS_ :
+      if (::getsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
+                        &val_len) != 0)
+        goto error;
+      return new java::lang::Integer (val);
+      break;
+	
+    case _Jv_SO_REUSEADDR_ :
+      throw new java::net::SocketException
+        (JvNewStringUTF ("SO_REUSEADDR: not valid for TCP"));
+      break;
+
+    case _Jv_SO_TIMEOUT_ :
+      return new java::lang::Integer (timeout);
+      break;
+
+    default :
+      errno = ENOPROTOOPT;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::SocketException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainSocketImpl::shutdownInput (void)
+{
+  if (::shutdown (fnum, 0))
+    throw new SocketException (JvNewStringUTF (strerror (errno)));
+}
+
+void
+java::net::PlainSocketImpl::shutdownOutput (void)
+{
+  if (::shutdown (fnum, 1))
+    throw new SocketException (JvNewStringUTF (strerror (errno)));
+}
diff --git a/libjava/java/net/natPlainSocketImplWin32.cc b/libjava/java/net/natPlainSocketImplWin32.cc
new file mode 100644
index 0000000..1485ea8
--- /dev/null
+++ b/libjava/java/net/natPlainSocketImplWin32.cc
@@ -0,0 +1,1019 @@
+/* Copyright (C) 2003 Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#ifndef DISABLE_JAVA_NET
+
+#ifdef WIN32
+
+#include <windows.h>
+#include <winsock.h>
+#include <errno.h>
+#include <string.h>
+#undef STRICT
+#undef MAX_PRIORITY
+#undef MIN_PRIORITY
+#undef FIONREAD
+
+// These functions make the Win32 socket API look more POSIXy
+static inline int
+write(int s, void *buf, int len)
+{
+  return send(s, (char*)buf, len, 0);
+}
+
+static inline int
+read(int s, void *buf, int len)
+{
+  return recv(s, (char*)buf, len, 0);
+}
+
+// these errors cannot occur on Win32
+#else /* WIN32 */
+
+#ifdef HAVE_SYS_IOCTL_H
+#define BSD_COMP /* Get FIONREAD on Solaris2. */
+#include <sys/ioctl.h>
+#endif
+
+// Pick up FIONREAD on Solaris 2.5.
+#ifdef HAVE_SYS_FILIO_H
+#include <sys/filio.h>
+#endif
+
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <errno.h>
+#include <string.h>
+
+#endif /* WIN32 */
+#endif /* DISABLE_JAVA_NET */
+
+#if HAVE_BSTRING_H
+// Needed for bzero, implicitly used by FD_ZERO on IRIX 5.2 
+#include <bstring.h>
+#endif
+
+
+#include <gcj/cni.h>
+#include <gcj/javaprims.h>
+#include <java/io/IOException.h>
+#include <java/io/InterruptedIOException.h>
+#include <java/net/BindException.h>
+#include <java/net/ConnectException.h>
+#include <java/net/PlainSocketImpl.h>
+#include <java/net/InetAddress.h>
+#include <java/net/InetSocketAddress.h>
+#include <java/net/SocketException.h>
+#include <java/net/SocketTimeoutException.h>
+#include <java/lang/InternalError.h>
+#include <java/lang/Object.h>
+#include <java/lang/Boolean.h>
+#include <java/lang/Class.h>
+#include <java/lang/Integer.h>
+#include <java/lang/Thread.h>
+#include <java/lang/NullPointerException.h>
+#include <java/lang/ArrayIndexOutOfBoundsException.h>
+#include <java/lang/IllegalArgumentException.h>
+
+#ifdef DISABLE_JAVA_NET
+
+void
+java::net::PlainSocketImpl::create (jboolean)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("SocketImpl.create: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::bind (java::net::InetAddress *, jint)
+{
+  throw new BindException (
+    JvNewStringLatin1 ("SocketImpl.bind: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::connect (java::net::SocketAddress *, jint)
+{
+  throw new ConnectException (
+    JvNewStringLatin1 ("SocketImpl.connect: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::listen (jint)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("SocketImpl.listen: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::accept (java::net::PlainSocketImpl *)
+{
+  throw new java::io::IOException (
+    JvNewStringLatin1 ("SocketImpl.accept: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::setOption (jint, java::lang::Object *)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.setOption: unimplemented"));
+}
+
+java::lang::Object *
+java::net::PlainSocketImpl::getOption (jint)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.getOption: unimplemented"));
+}
+
+jint
+java::net::PlainSocketImpl::read(void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.read: unimplemented"));
+}
+
+jint
+java::net::PlainSocketImpl::read(jbyteArray buffer, jint offset, jint count)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.read: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::write(jint b)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.write: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::write(jbyteArray b, jint offset, jint len)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.write: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::sendUrgentData(jint data)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.sendUrgentData: unimplemented"));
+}
+
+jint
+java::net::PlainSocketImpl::available(void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.available: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::close(void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.close: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::shutdownInput (void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.shutdownInput: unimplemented"));
+}
+
+void
+java::net::PlainSocketImpl::shutdownOutput (void)
+{
+  throw new SocketException (
+    JvNewStringLatin1 ("SocketImpl.shutdownOutput: unimplemented"));
+}
+
+#else /* DISABLE_JAVA_NET */
+
+union SockAddr
+{
+  struct sockaddr_in address;
+#ifdef HAVE_INET6
+  struct sockaddr_in6 address6;
+#endif
+};
+
+void
+java::net::PlainSocketImpl::create (jboolean stream)
+{
+  int sock = _Jv_socket (AF_INET, stream ? SOCK_STREAM : SOCK_DGRAM, 0);
+
+  if (sock < 0)
+    {
+      char* strerr = strerror (errno);
+      throw new java::io::IOException (JvNewStringUTF (strerr));
+    }
+
+  _Jv_platform_close_on_exec (sock);
+
+  // We use fnum in place of fd here.  From leaving fd null we avoid
+  // the double close problem in FileDescriptor.finalize.
+  fnum = sock;
+}
+
+void
+java::net::PlainSocketImpl::bind (java::net::InetAddress *host, jint lport)
+{
+  union SockAddr u;
+  struct sockaddr *ptr = (struct sockaddr *) &u.address;
+  jbyteArray haddress = host->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+  int i = 1;
+
+  if (len == 4)
+    {
+      u.address.sin_family = AF_INET;
+
+      if (host != NULL)
+        memcpy (&u.address.sin_addr, bytes, len);
+      else
+        u.address.sin_addr.s_addr = htonl (INADDR_ANY);
+
+      len = sizeof (struct sockaddr_in);
+      u.address.sin_port = htons (lport);
+    }
+#ifdef HAVE_INET6
+  else if (len == 16)
+    {
+      u.address6.sin6_family = AF_INET6;
+      memcpy (&u.address6.sin6_addr, bytes, len);
+      len = sizeof (struct sockaddr_in6);
+      u.address6.sin6_port = htons (lport);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+  // Enable SO_REUSEADDR, so that servers can reuse ports left in TIME_WAIT.
+  ::setsockopt(fnum, SOL_SOCKET, SO_REUSEADDR, (char *) &i, sizeof(i));
+  
+  if (_Jv_bind (fnum, ptr, len) == 0)
+    {
+      address = host;
+      socklen_t addrlen = sizeof(u);
+
+      if (lport != 0)
+        localport = lport;
+      else if (::getsockname (fnum, (sockaddr*) &u, &addrlen) == 0)
+        localport = ntohs (u.address.sin_port);
+      else
+        goto error;
+
+      return;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::BindException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainSocketImpl::connect (java::net::SocketAddress *addr,
+                                     jint timeout)
+{
+  java::net::InetSocketAddress *tmp = (java::net::InetSocketAddress*) addr;
+  java::net::InetAddress *host = tmp->getAddress();
+  jint rport = tmp->getPort();
+	
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  jbyteArray haddress = host->addr;
+  jbyte *bytes = elements (haddress);
+  int len = haddress->length;
+  struct sockaddr *ptr = (struct sockaddr *) &u.address;
+  if (len == 4)
+    {
+      u.address.sin_family = AF_INET;
+      memcpy (&u.address.sin_addr, bytes, len);
+      len = sizeof (struct sockaddr_in);
+      u.address.sin_port = htons (rport);
+    }
+#ifdef HAVE_INET6
+  else if (len == 16)
+    {
+      u.address6.sin6_family = AF_INET6;
+      memcpy (&u.address6.sin6_addr, bytes, len);
+      len = sizeof (struct sockaddr_in6);
+      u.address6.sin6_port = htons (rport);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));
+
+// FIXME: implement timeout support for Win32
+#ifndef WIN32
+  if (timeout > 0)
+    {
+      int flags = ::fcntl (fnum, F_GETFL);
+      ::fcntl (fnum, F_SETFL, flags | O_NONBLOCK);
+      
+      if ((_Jv_connect (fnum, ptr, len) != 0) && (errno != EINPROGRESS))
+        goto error;
+
+      fd_set rset;
+      struct timeval tv;
+      FD_ZERO(&rset);
+      FD_SET(fnum, &rset);
+      tv.tv_sec = timeout / 1000;
+      tv.tv_usec = (timeout % 1000) * 1000;
+      int retval;
+      
+      if ((retval = _Jv_select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
+        goto error;
+      else if (retval == 0)
+        throw new java::net::SocketTimeoutException
+          (JvNewStringUTF ("Connect timed out"));
+    }
+  else
+#endif
+    {
+      if (_Jv_connect (fnum, ptr, len) != 0)
+        goto error;
+    }
+
+  address = host;
+  port = rport;
+
+  // A bind may not have been done on this socket; if so, set localport now.
+  if (localport == 0)
+    {
+      if (::getsockname (fnum, (sockaddr*) &u, &addrlen) == 0)
+        localport = ntohs (u.address.sin_port);
+      else
+        goto error;
+    }
+
+  return;  
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::ConnectException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainSocketImpl::listen (jint backlog)
+{
+  if (::listen (fnum, backlog) != 0)
+    {
+      char* strerr = strerror (errno);
+      throw new java::io::IOException (JvNewStringUTF (strerr));
+    }
+}
+
+void
+java::net::PlainSocketImpl::accept (java::net::PlainSocketImpl *s)
+{
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  int new_socket = 0; 
+
+// FIXME: implement timeout support for Win32
+#ifndef WIN32
+  // Do timeouts via select since SO_RCVTIMEO is not always available.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      fd_set rset;
+      struct timeval tv;
+      FD_ZERO(&rset);
+      FD_SET(fnum, &rset);
+      tv.tv_sec = timeout / 1000;
+      tv.tv_usec = (timeout % 1000) * 1000;
+      int retval;
+      if ((retval = _Jv_select (fnum + 1, &rset, NULL, NULL, &tv)) < 0)
+        goto error;
+      else if (retval == 0)
+        throw new java::io::InterruptedIOException (
+	                                  JvNewStringUTF("Accept timed out"));
+    }
+#endif /* WIN32 */
+
+  new_socket = _Jv_accept (fnum, (sockaddr*) &u, &addrlen);
+
+  if (new_socket < 0)
+    goto error;
+
+  _Jv_platform_close_on_exec (new_socket);
+
+  jbyteArray raddr;
+  jint rport;
+  if (u.address.sin_family == AF_INET)
+    {
+      raddr = JvNewByteArray (4);
+      memcpy (elements (raddr), &u.address.sin_addr, 4);
+      rport = ntohs (u.address.sin_port);
+    }
+#ifdef HAVE_INET6
+  else if (u.address.sin_family == AF_INET6)
+    {
+      raddr = JvNewByteArray (16);
+      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
+      rport = ntohs (u.address6.sin6_port);
+    }
+#endif
+  else
+    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));
+
+  s->fnum = new_socket;
+  s->localport = localport;
+  s->address = new InetAddress (raddr, NULL);
+  s->port = rport;
+  return;
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::io::IOException (JvNewStringUTF (strerr));
+}
+
+// Close(shutdown) the socket.
+void
+java::net::PlainSocketImpl::close()
+{
+  // Avoid races from asynchronous finalization.
+  JvSynchronize sync (this);
+
+  // should we use shutdown here? how would that effect so_linger?
+  int res = _Jv_close (fnum);
+
+  if (res == -1)
+    {
+      // These three errors are not errors according to tests performed
+      // on the reference implementation.
+      if (errno != ENOTCONN && errno != ECONNRESET && errno != EBADF)
+        throw new java::io::IOException  (JvNewStringUTF (strerror (errno)));
+    }
+  // Safe place to reset the file pointer.
+  fnum = -1;
+  timeout = 0;
+}
+
+// Write a byte to the socket.
+void
+java::net::PlainSocketImpl::write(jint b)
+{
+  jbyte d =(jbyte) b;
+  int r = 0;
+
+  while (r != 1)
+    {
+      r = _Jv_write (fnum, &d, 1);
+      if (r == -1)
+        {
+          if (java::lang::Thread::interrupted())
+            {
+              java::io::InterruptedIOException *iioe
+                = new java::io::InterruptedIOException 
+                (JvNewStringLatin1 (strerror (errno)));
+              iioe->bytesTransferred = 0;
+              throw iioe;
+            }
+          // Some errors should not cause exceptions.
+          if (errno != ENOTCONN && errno != ECONNRESET && errno != EBADF)
+            throw new java::io::IOException (JvNewStringUTF (strerror (errno)));
+          break;
+        }
+    }
+}
+
+// Write some bytes to the socket.
+void
+java::net::PlainSocketImpl::write(jbyteArray b, jint offset, jint len)
+{
+  if (! b)
+    throw new java::lang::NullPointerException;
+  if (offset < 0 || len < 0 || offset + len > JvGetArrayLength (b))
+    throw new java::lang::ArrayIndexOutOfBoundsException;
+
+  jbyte *bytes = elements (b) + offset;
+  int written = 0;
+
+  while (len > 0)
+    {
+      int r = _Jv_write (fnum, bytes, len);
+
+      if (r == -1)
+        {
+          if (java::lang::Thread::interrupted())
+            {
+              java::io::InterruptedIOException *iioe
+                = new java::io::InterruptedIOException
+                (JvNewStringLatin1 (strerror (errno)));
+              iioe->bytesTransferred = written;
+              throw iioe;
+            }
+          // Some errors should not cause exceptions.
+          if (errno != ENOTCONN && errno != ECONNRESET && errno != EBADF)
+            throw new java::io::IOException (JvNewStringUTF (strerror (errno)));
+          break;
+        }
+
+      written += r;
+      len -= r;
+      bytes += r;
+    }
+}
+
+void
+java::net::PlainSocketImpl::sendUrgentData (jint)
+{
+  throw new SocketException (JvNewStringLatin1 (
+    "PlainSocketImpl: sending of urgent data not supported by this socket"));
+}
+
+// Read a single byte from the socket.
+jint
+java::net::PlainSocketImpl::read(void)
+{
+  jbyte b;
+
+// FIXME: implement timeout support for Win32
+#ifndef WIN32
+  // Do timeouts via select.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      // Create the file descriptor set.
+      fd_set read_fds;
+      FD_ZERO (&read_fds);
+      FD_SET (fnum,&read_fds);
+      // Create the timeout struct based on our internal timeout value.
+      struct timeval timeout_value;
+      timeout_value.tv_sec = timeout / 1000;
+      timeout_value.tv_usec = (timeout % 1000) * 1000;
+      // Select on the fds.
+      int sel_retval =
+        _Jv_select (fnum + 1, &read_fds, NULL, NULL, &timeout_value);
+      // If select returns 0 we've waited without getting data...
+      // that means we've timed out.
+      if (sel_retval == 0)
+        throw new java::io::InterruptedIOException
+          (JvNewStringUTF ("read timed out") );
+      // If select returns ok we know we either got signalled or read some data...
+      // either way we need to try to read.
+    }
+#endif /* WIN32 */
+
+  int r = _Jv_read (fnum, &b, 1);
+
+  if (r == 0)
+    return -1;
+
+  if (java::lang::Thread::interrupted())
+    {
+      java::io::InterruptedIOException *iioe =
+        new java::io::InterruptedIOException
+        (JvNewStringUTF("read interrupted"));
+      iioe->bytesTransferred = r == -1 ? 0 : r;
+      throw iioe;
+    }
+  else if (r == -1)
+    {
+      // Some errors cause us to return end of stream...
+      if (errno == ENOTCONN)
+        return -1;
+
+      // Other errors need to be signalled.
+      throw new java::io::IOException (JvNewStringUTF (strerror (errno)));
+    }
+
+  return b & 0xFF;
+}
+
+// Read count bytes into the buffer, starting at offset.
+jint
+java::net::PlainSocketImpl::read(jbyteArray buffer, jint offset, jint count)
+{
+  if (! buffer)
+    throw new java::lang::NullPointerException;
+
+  jsize bsize = JvGetArrayLength (buffer);
+
+  if (offset < 0 || count < 0 || offset + count > bsize)
+    throw new java::lang::ArrayIndexOutOfBoundsException;
+
+  jbyte *bytes = elements (buffer) + offset;
+
+// FIXME: implement timeout support for Win32
+#ifndef WIN32
+  // Do timeouts via select.
+  if (timeout > 0 && fnum >= 0 && fnum < FD_SETSIZE)
+    {
+      // Create the file descriptor set.
+      fd_set read_fds;
+      FD_ZERO (&read_fds);
+      FD_SET (fnum, &read_fds);
+      // Create the timeout struct based on our internal timeout value.
+      struct timeval timeout_value;
+      timeout_value.tv_sec = timeout / 1000;
+      timeout_value.tv_usec =(timeout % 1000) * 1000;
+      // Select on the fds.
+      int sel_retval =
+        _Jv_select (fnum + 1, &read_fds, NULL, NULL, &timeout_value);
+      // We're only interested in the 0 return.
+      // error returns still require us to try to read 
+      // the socket to see what happened.
+      if (sel_retval == 0)
+        {
+          java::io::InterruptedIOException *iioe =
+            new java::io::InterruptedIOException
+            (JvNewStringUTF ("read interrupted"));
+          iioe->bytesTransferred = 0;
+          throw iioe;
+        }
+    }
+#endif
+
+  // Read the socket.
+  int r = ::recv (fnum, (char *) bytes, count, 0);
+
+  if (r == 0)
+    return -1;
+
+  if (java::lang::Thread::interrupted())
+    {
+      java::io::InterruptedIOException *iioe =
+        new java::io::InterruptedIOException
+        (JvNewStringUTF ("read interrupted"));
+      iioe->bytesTransferred = r == -1 ? 0 : r;
+      throw iioe;
+    }
+  else if (r == -1)
+    {
+      // Some errors cause us to return end of stream...
+      if (errno == ENOTCONN)
+        return -1;
+
+      // Other errors need to be signalled.
+      throw new java::io::IOException (JvNewStringUTF (strerror (errno)));
+    }
+
+  return r;
+}
+
+// How many bytes are available?
+jint
+java::net::PlainSocketImpl::available(void)
+{
+#if defined(FIONREAD) || defined(HAVE_SELECT)
+  long num = 0;
+  int r = 0;
+  bool num_set = false;
+
+#if defined(FIONREAD)
+  r = ::ioctl (fnum, FIONREAD, &num);
+
+  if (r == -1 && errno == ENOTTY)
+    {
+      // If the ioctl doesn't work, we don't care.
+      r = 0;
+      num = 0;
+    }
+  else
+    num_set = true;
+#elif defined(HAVE_SELECT)
+  if (fnum < 0)
+    {
+      errno = EBADF;
+      r = -1;
+    }
+#endif
+
+  if (r == -1)
+    {
+    posix_error:
+      throw new java::io::IOException(JvNewStringUTF(strerror(errno)));
+    }
+
+  // If we didn't get anything we can use select.
+
+#if defined(HAVE_SELECT)
+  if (! num_set)
+    if (! num_set && fnum >= 0 && fnum < FD_SETSIZE)
+      {
+        fd_set rd;
+        FD_ZERO (&rd);
+        FD_SET (fnum, &rd);
+        struct timeval tv;
+        tv.tv_sec = 0;
+        tv.tv_usec = 0;
+        r = _Jv_select (fnum + 1, &rd, NULL, NULL, &tv);
+        if(r == -1)
+          goto posix_error;
+        num = r == 0 ? 0 : 1;
+      }
+#endif /* HAVE_SELECT */
+
+  return (jint) num;
+#else
+  throw new java::io::IOException (JvNewStringUTF ("unimplemented"));
+#endif
+}
+
+void
+java::net::PlainSocketImpl::setOption (jint optID, java::lang::Object *value)
+{
+  int val;
+  socklen_t val_len = sizeof (val);
+
+  if (fnum < 0)
+    throw new java::net::SocketException (JvNewStringUTF ("Socket closed"));
+
+  if (_Jv_IsInstanceOf (value, &java::lang::Boolean::class$))
+    {
+      java::lang::Boolean *boolobj = 
+        static_cast<java::lang::Boolean *> (value);
+      if (boolobj->booleanValue())
+        val = 1; 
+      else 
+        {
+          if (optID == _Jv_SO_LINGER_)
+            val = -1;
+          else
+            val = 0;
+        }
+    }
+  else if (_Jv_IsInstanceOf (value, &java::lang::Integer::class$))
+    {
+      java::lang::Integer *intobj = 
+        static_cast<java::lang::Integer *> (value);          
+      val = (int) intobj->intValue();
+    }
+  else
+    {
+      throw new java::lang::IllegalArgumentException (
+        JvNewStringLatin1 ("`value' must be Boolean or Integer"));
+    }
+
+  switch (optID) 
+    {
+      case _Jv_TCP_NODELAY_ :
+#ifdef TCP_NODELAY
+        if (::setsockopt (fnum, IPPROTO_TCP, TCP_NODELAY, (char *) &val,
+                          val_len) != 0)
+          goto error;
+#else
+        throw new java::lang::InternalError
+          (JvNewStringUTF ("TCP_NODELAY not supported"));
+#endif /* TCP_NODELAY */
+        return;
+
+      case _Jv_SO_KEEPALIVE_ :
+        if (::setsockopt (fnum, SOL_SOCKET, SO_KEEPALIVE, (char *) &val,
+                          val_len) != 0)
+          goto error;
+        break;
+      
+      case _Jv_SO_BROADCAST_ :
+        throw new java::net::SocketException
+          (JvNewStringUTF ("SO_BROADCAST not valid for TCP"));
+        break;
+	
+      case _Jv_SO_OOBINLINE_ :
+        if (::setsockopt (fnum, SOL_SOCKET, SO_OOBINLINE, (char *) &val,
+                          val_len) != 0)
+          goto error;
+        break;
+
+      case _Jv_SO_LINGER_ :
+#ifdef SO_LINGER
+        struct linger l_val;
+        l_val.l_onoff = (val != -1);
+        l_val.l_linger = val;
+
+        if (::setsockopt (fnum, SOL_SOCKET, SO_LINGER, (char *) &l_val,
+                          sizeof(l_val)) != 0)
+          goto error;    
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_LINGER not supported"));
+#endif /* SO_LINGER */
+        return;
+
+      case _Jv_SO_SNDBUF_ :
+      case _Jv_SO_RCVBUF_ :
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+        int opt;
+        optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
+        if (::setsockopt (fnum, SOL_SOCKET, opt, (char *) &val, val_len) != 0)
+          goto error;    
+#else
+        throw new java::lang::InternalError (
+          JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
+#endif 
+        return;
+
+      case _Jv_SO_BINDADDR_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_BINDADDR: read only option"));
+        return;
+
+      case _Jv_IP_MULTICAST_IF_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_IF: not valid for TCP"));
+        return;
+	
+      case _Jv_IP_MULTICAST_IF2_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_IF2: not valid for TCP"));
+        break;
+	
+      case _Jv_IP_MULTICAST_LOOP_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("IP_MULTICAST_LOOP: not valid for TCP"));
+        break;
+	
+      case _Jv_IP_TOS_ :
+        if (::setsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
+                          val_len) != 0)
+          goto error;    
+        break;
+	
+      case _Jv_SO_REUSEADDR_ :
+        throw new java::net::SocketException (
+          JvNewStringUTF ("SO_REUSEADDR: not valid for TCP"));
+        return;
+
+      case _Jv_SO_TIMEOUT_ :
+        timeout = val;
+        return;
+
+      default :
+        errno = ENOPROTOOPT;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::SocketException (JvNewStringUTF (strerr));
+}
+
+java::lang::Object *
+java::net::PlainSocketImpl::getOption (jint optID)
+{
+  int val;
+  socklen_t val_len = sizeof(val);
+  union SockAddr u;
+  socklen_t addrlen = sizeof(u);
+  struct linger l_val;
+  socklen_t l_val_len = sizeof(l_val);
+
+  switch (optID)
+    {
+#ifdef TCP_NODELAY
+    case _Jv_TCP_NODELAY_ :
+      if (::getsockopt (fnum, IPPROTO_TCP, TCP_NODELAY, (char *) &val,
+                        &val_len) != 0)
+        goto error;
+      else
+        return new java::lang::Boolean (val != 0);
+#else
+      throw new java::lang::InternalError
+        (JvNewStringUTF ("TCP_NODELAY not supported"));
+#endif       
+      break;
+      
+    case _Jv_SO_LINGER_ :
+#ifdef SO_LINGER
+      if (::getsockopt (fnum, SOL_SOCKET, SO_LINGER, (char *) &l_val,
+                        &l_val_len) != 0)
+        goto error;    
+ 
+      if (l_val.l_onoff)
+        return new java::lang::Integer (l_val.l_linger);
+      else
+        return new java::lang::Boolean ((jboolean)false);
+#else
+      throw new java::lang::InternalError
+        (JvNewStringUTF ("SO_LINGER not supported"));
+#endif
+      break;    
+
+    case _Jv_SO_KEEPALIVE_ :
+      if (::getsockopt (fnum, SOL_SOCKET, SO_KEEPALIVE, (char *) &val,
+                        &val_len) != 0)
+        goto error;
+      else
+        return new java::lang::Boolean (val != 0);
+
+    case _Jv_SO_BROADCAST_ :
+      if (::getsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &val,
+                        &val_len) != 0)
+        goto error;    
+      return new java::lang::Boolean ((jboolean)val);
+	
+    case _Jv_SO_OOBINLINE_ :
+      if (::getsockopt (fnum, SOL_SOCKET, SO_OOBINLINE, (char *) &val,
+                        &val_len) != 0)
+        goto error;    
+      return new java::lang::Boolean ((jboolean)val);
+	
+    case _Jv_SO_RCVBUF_ :
+    case _Jv_SO_SNDBUF_ :
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+      int opt;
+      optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
+      if (::getsockopt (fnum, SOL_SOCKET, opt, (char *) &val, &val_len) != 0)
+        goto error;    
+      else
+        return new java::lang::Integer (val);
+#else
+      throw new java::lang::InternalError
+        (JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
+#endif    
+      break;
+    case _Jv_SO_BINDADDR_:
+      // cache the local address 
+      if (localAddress == NULL)
+        {
+          jbyteArray laddr;
+
+          if (::getsockname (fnum, (sockaddr*) &u, &addrlen) != 0)
+            goto error;
+
+          if (u.address.sin_family == AF_INET)
+            {
+              laddr = JvNewByteArray (4);
+              memcpy (elements (laddr), &u.address.sin_addr, 4);
+            }
+#ifdef HAVE_INET6
+          else if (u.address.sin_family == AF_INET6)
+            {
+              laddr = JvNewByteArray (16);
+              memcpy (elements (laddr), &u.address6.sin6_addr, 16);
+            }
+#endif
+          else
+            throw new java::net::SocketException
+              (JvNewStringUTF ("invalid family"));
+          localAddress = new java::net::InetAddress (laddr, NULL);
+        }
+
+      return localAddress;
+      break;
+    case _Jv_IP_MULTICAST_IF_ :
+      throw new java::net::SocketException
+        (JvNewStringUTF ("IP_MULTICAST_IF: not valid for TCP"));
+      break;
+	
+    case _Jv_IP_MULTICAST_IF2_ :
+      throw new java::net::SocketException
+        (JvNewStringUTF ("IP_MULTICAST_IF2: not valid for TCP"));
+      break;
+	
+    case _Jv_IP_MULTICAST_LOOP_ :
+      throw new java::net::SocketException
+        (JvNewStringUTF ("IP_MULTICAST_LOOP: not valid for TCP"));
+      break;
+	
+    case _Jv_IP_TOS_ :
+      if (::getsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
+                        &val_len) != 0)
+        goto error;
+      return new java::lang::Integer (val);
+      break;
+	
+    case _Jv_SO_REUSEADDR_ :
+      throw new java::net::SocketException
+        (JvNewStringUTF ("SO_REUSEADDR: not valid for TCP"));
+      break;
+
+    case _Jv_SO_TIMEOUT_ :
+      return new java::lang::Integer (timeout);
+      break;
+
+    default :
+      errno = ENOPROTOOPT;
+    }
+
+ error:
+  char* strerr = strerror (errno);
+  throw new java::net::SocketException (JvNewStringUTF (strerr));
+}
+
+void
+java::net::PlainSocketImpl::shutdownInput (void)
+{
+  if (::shutdown (fnum, 0))
+    throw new SocketException (JvNewStringUTF (strerror (errno)));
+}
+
+void
+java::net::PlainSocketImpl::shutdownOutput (void)
+{
+  if (::shutdown (fnum, 1))
+    throw new SocketException (JvNewStringUTF (strerror (errno)));
+}
+
+#endif /* DISABLE_JAVA_NET */