ncurses 6.1 - patch 20190803

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

diff --git a/ncurses/base/lib_getstr.c b/ncurses/base/lib_getstr.c
index 0a71db5134f9c37f9b56517a98006973b639ceac..fc18e40fcaa4d85c7019db02c664732a8f576445 100644 (file)
--- a/ncurses/base/lib_getstr.c
+++ b/ncurses/base/lib_getstr.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2008,2009 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            *
@@ -40,14 +40,14 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_getstr.c,v 1.28 2009/05/09 17:02:41 tom Exp $")
+MODULE_ID("$Id: lib_getstr.c,v 1.33 2018/09/01 20:18:09 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';
@@ -83,11 +83,13 @@ wgetnstr_events(WINDOW *win,
     int ch;
     int y, x;
 
-    T((T_CALLED("wgetnstr(%p,%p, %d)"), win, str, maxlen));
+    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 +144,7 @@ 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;