ncurses 6.2 - patch 20210418

[ncurses.git] / ncurses / base / lib_getstr.c

diff --git a/ncurses/base/lib_getstr.c b/ncurses/base/lib_getstr.c
index 21d8baa05c8be0968bb80b1730a8ba637cb2d7b8..7871fb357a62a6d75388fa71127050a4a81c476b 100644 (file)
--- a/ncurses/base/lib_getstr.c
+++ b/ncurses/base/lib_getstr.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc.              *
+ * Copyright 2018,2020 Thomas E. Dickey                                     *
+ * Copyright 1998-2011,2017 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            *
@@ -38,16 +39,17 @@
 **
 */
 
+#define NEED_KEY_EVENT
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_getstr.c,v 1.29 2009/10/24 21:59:02 tom Exp $")
+MODULE_ID("$Id: lib_getstr.c,v 1.35 2020/07/18 20:02:24 tom Exp $")
 
 /*
  * This wipes out the last character, no matter whether it was a tab, control
  * or other character, and handles reverse wraparound.
  */
 static char *
-WipeOut(WINDOW *win, int y, int x, char *first, char *last, bool echoed)
+WipeOut(WINDOW *win, int y, int x, char *first, char *last, int echoed)
 {
     if (last > first) {
        *--last = '\0';
@@ -85,9 +87,11 @@ wgetnstr_events(WINDOW *win,
 
     T((T_CALLED("wgetnstr(%p,%p,%d)"), (void *) win, (void *) str, maxlen));
 
-    if (!win)
+    if (!win || !str)
        returnCode(ERR);
 
+    maxlen = _nc_getstr_limit(maxlen);
+
     NCURSES_SP_NAME(_nc_get_tty_mode) (NCURSES_SP_ARGx &buf);
 
     oldnl = sp->_nl;
@@ -142,7 +146,7 @@ wgetnstr_events(WINDOW *win,
                str = WipeOut(win, y, x, oldstr, str, oldecho);
            }
        } else if (ch >= KEY_MIN
-                  || (maxlen >= 0 && str - oldstr >= maxlen)) {
+                  || (str - oldstr >= maxlen)) {
            NCURSES_SP_NAME(beep) (NCURSES_SP_ARG);
        } else {
            *str++ = (char) ch;