1 files changed, 97 insertions, 0 deletions
diff --git a/native/jni/java-util/java_util_TimeZone.c b/native/jni/java-util/java_util_TimeZone.c
new file mode 100644
index 000000000..9c9ee1a8b
--- /dev/null
+++ b/native/jni/java-util/java_util_TimeZone.c
@@ -0,0 +1,97 @@
+/* TimeZone.c - Native methods for java.util.TimeZone
+   Copyright (C) 1999 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+ 
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+#include <jni.h>
+
+#include "config.h"
+
+#include "java_util_TimeZone.h"
+
+/*
+ * This method returns a time zone string that is used by the static
+ * initializer in java.util.TimeZone to create the default timezone
+ * instance.  This is a key into the timezone table used by
+ * that class.
+ */
+JNIEXPORT jstring JNICALL
+Java_java_util_TimeZone_getDefaultTimeZoneId(JNIEnv *env, jclass clazz)
+{
+  time_t current_time;
+  char **tzinfo, *tzid;
+  long tzoffset;
+  jstring retval;
+
+  current_time = time(0);
+
+  mktime(localtime(&current_time));
+  tzinfo = tzname;
+  tzoffset = timezone;
+
+  if ((tzoffset % 3600) == 0)
+    tzoffset = tzoffset / 3600;
+
+  if (!strcmp(tzinfo[0], tzinfo[1]))  
+    {
+      tzid = (char*)malloc(strlen(tzinfo[0]) + 6);
+      if (!tzid)
+        return(0);
+
+      sprintf(tzid, "%s%ld", tzinfo[0], tzoffset);
+    }
+  else
+    {
+      tzid = (char*)malloc(strlen(tzinfo[0]) + strlen(tzinfo[1]) + 6);
+      if (!tzid)
+        return(0);
+
+      sprintf(tzid, "%s%ld%s", tzinfo[0], tzoffset, tzinfo[1]);
+    }
+
+  retval = (*env)->NewStringUTF(env, tzid);
+  if (!retval)
+    return(0);
+ 
+  (*env)->NewGlobalRef(env, retval);
+
+  return(retval);
+}
+