$OpenBSD: patch-src_xmlrpc_datetime_c,v 1.2 2009/05/31 15:54:20 benoit Exp $
--- src/xmlrpc_datetime.c.orig	Wed Apr 22 00:42:03 2009
+++ src/xmlrpc_datetime.c	Tue May 26 01:12:35 2009
@@ -251,7 +251,11 @@ static void
 restoreTimezone(const char * const oldTz) {
 
     if (haveSetenv) {
-        setenv("TZ", oldTz, 1);
+    	if (oldTz) {
+	    setenv("TZ", oldTz, 1);
+	} else {
+	    unsetenv("TZ");
+	}
         free((char*)oldTz);
     }
 }
@@ -397,6 +401,7 @@ parseDatetime(xmlrpc_env * const envP,
         else {
             struct tm brokenTime;
             
+	    memset(&brokenTime, 0, sizeof(struct tm));
             brokenTime.tm_sec   = s;
             brokenTime.tm_min   = m;
             brokenTime.tm_hour  = h;