X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_getstr.c;h=d0b09a3b927ecc04f6cb6f36cb2a7d7ff4517087;hp=0a71db5134f9c37f9b56517a98006973b639ceac;hb=c976a90788f3e50afc773670ff74c5270ecb48df;hpb=404cc3f5b0751dd219565139f825c5a4d445f651

diff --git a/ncurses/base/lib_getstr.c b/ncurses/base/lib_getstr.c
index 0a71db51..d0b09a3b 100644
--- 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            *
@@ -40,14 +41,14 @@
 
 #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 1.34 2020/02/02 23:34:34 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 +84,13 @@ 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 +145,7 @@ 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;