usa	2011-11-09 16:43:08 +0900 (Wed, 09 Nov 2011)

  New Revision: 33685

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=33685

  Log:
    * win32/win32.c (unixtime_to_filetime): should check the return value
      of localtime().  reported by snowjail at gmail.com.
      [ruby-dev:44838] [Bug #5596]

  Modified files:
    trunk/ChangeLog
    trunk/win32/win32.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 33684)
+++ ChangeLog	(revision 33685)
@@ -1,3 +1,9 @@
+Wed Nov  9 16:40:49 2011  NAKAMURA Usaku  <usa@r...>
+
+	* win32/win32.c (unixtime_to_filetime): should check the return value
+	  of localtime().  reported by snowjail at gmail.com.
+	  [ruby-dev:44838] [Bug #5596]
+
 Thu Nov 10 05:17:25 2011  Koichi Sasada  <ko1@a...>
 
 	* cont.c (rb_fiber_m_transfer, rb_fiber_resume): prohibit using
Index: win32/win32.c
===================================================================
--- win32/win32.c	(revision 33684)
+++ win32/win32.c	(revision 33685)
@@ -5758,6 +5758,9 @@
     FILETIME lt;
 
     tm = localtime(&time);
+    if (!tm) {
+	return -1;
+    }
     st.wYear = tm->tm_year + 1900;
     st.wMonth = tm->tm_mon + 1;
     st.wDayOfWeek = tm->tm_wday;

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