X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftinfo%2Fadd_tries.c;h=9d215575fec02f710780bb7fac7d6eff886f8e06;hp=d41f488300ae3f799d2eab7e69f397e6073ca5df;hb=91494ab0071e71177728916199a406768f5ef963;hpb=f79c210479470378389aab5b8d4d42d4a7f3d9a4

diff --git a/ncurses/tinfo/add_tries.c b/ncurses/tinfo/add_tries.c
index d41f4883..9d215575 100644
--- a/ncurses/tinfo/add_tries.c
+++ b/ncurses/tinfo/add_tries.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2019,2020 Thomas E. Dickey                                     *
+ * Copyright 2019-2020,2023 Thomas E. Dickey                                *
  * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -39,8 +39,9 @@
 */
 
 #include <curses.priv.h>
+#include <tic.h>
 
-MODULE_ID("$Id: add_tries.c,v 1.12 2020/02/02 23:34:34 tom Exp $")
+MODULE_ID("$Id: add_tries.c,v 1.13 2023/06/24 15:36:13 tom Exp $")
 
 #define SET_TRY(dst,src) if ((dst->ch = *src++) == 128) dst->ch = '\0'
 #define CMP_TRY(a,b) ((a)? (a == b) : (b == 128))
@@ -53,7 +54,7 @@ _nc_add_to_try(TRIES ** tree, const char *str, unsigned code)
 
     T((T_CALLED("_nc_add_to_try(%p, %s, %u)"),
        (void *) *tree, _nc_visbuf(str), code));
-    if (txt == 0 || *txt == '\0' || code == 0)
+    if (!VALID_STRING(str) || *txt == '\0' || code == 0)
 	returnCode(ERR);
 
     if ((*tree) != 0) {