--- /dev/null
+/* ========================================================================
+ * Copyright 1988-2006 University of Washington
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *
+ * ========================================================================
+ */
+
+/*
+ * Program: SVR4-style Time Zone String
+ *
+ * Author: Mark Crispin
+ * Networks and Distributed Computing
+ * Computing & Communications
+ * University of Washington
+ * Administration Building, AG-44
+ * Seattle, WA 98195
+ * Internet: MRC@CAC.Washington.EDU
+ *
+ * Date: 30 August 1994
+ * Last Edited: 30 August 2006
+ */
+
+
+/* Append local timezone name
+ * Accepts: destination string
+ */
+
+void rfc822_timezone (char *s,void *t)
+{
+ tzset (); /* get timezone from TZ environment stuff */
+ sprintf (s + strlen (s)," (%.50s)",
+ tzname[daylight ? (((struct tm *) t)->tm_isdst > 0) : 0]);
+}