X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fwidechar%2Flib_unget_wch.c;h=4ea26b6034b55d621ef3db481d18da847ace0f0c;hp=6a2346d570a3d1848bd7585956ddfd03b53e3708;hb=HEAD;hpb=76a479337308b4b5e749fa8c38b7b7f482998c5b

diff --git a/ncurses/widechar/lib_unget_wch.c b/ncurses/widechar/lib_unget_wch.c
index 6a2346d5..1a81fecc 100644
--- a/ncurses/widechar/lib_unget_wch.c
+++ b/ncurses/widechar/lib_unget_wch.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 2002-2011,2016 Free Software Foundation, Inc.              *
+ * Copyright 2020,2023 Thomas E. Dickey                                     *
+ * Copyright 2002-2011,2016 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            *
@@ -39,7 +40,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_unget_wch.c,v 1.16 2016/05/28 23:36:34 tom Exp $")
+MODULE_ID("$Id: lib_unget_wch.c,v 1.18 2023/06/03 12:50:52 tom Exp $")
 
 /*
  * Wrapper for wcrtomb() which obtains the length needed for the given
@@ -59,7 +60,7 @@ _nc_wcrtomb(char *target, wchar_t source, mbstate_t * state)
     } else {
 	result = (int) wcrtomb(target, source, state);
     }
-    if (!isEILSEQ(result) && (result == 0))
+    if (!isEILSEQ(result) && ((result == 0) || (result > MB_LEN_MAX)))
 	result = 1;
     return (size_t) result;
 }