X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftinfo%2Falloc_entry.c;h=fe7892f4c6184275f806211cec537631213c2a4b;hp=09374d6e77f87181ced81f2d13bc652e3d472b8b;hb=0237f10a296593d54fd8b2aa144921983085e002;hpb=5c2245b6fc619f8d96ce940281dfbf13b5b8900b

diff --git a/ncurses/tinfo/alloc_entry.c b/ncurses/tinfo/alloc_entry.c
index 09374d6e..fe7892f4 100644
--- a/ncurses/tinfo/alloc_entry.c
+++ b/ncurses/tinfo/alloc_entry.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2013,2017 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2017,2018 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -47,7 +47,7 @@
 
 #include <tic.h>
 
-MODULE_ID("$Id: alloc_entry.c,v 1.61 2017/08/25 09:09:08 tom Exp $")
+MODULE_ID("$Id: alloc_entry.c,v 1.62 2018/04/14 20:32:09 tom Exp $")
 
 #define ABSENT_OFFSET    -1
 #define CANCELLED_OFFSET -2
@@ -229,6 +229,9 @@ _nc_merge_entry(ENTRY * const target, ENTRY * const source)
     TERMTYPE2 *from = &(source->tterm);
     unsigned i;
 
+    if (source == 0 || from == 0 || target == 0 || to == 0)
+	return;
+
 #if NCURSES_XNAMES
     _nc_align_termtype(to, from);
 #endif