ncurses 6.1 - patch 20180210

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

diff --git a/ncurses/base/lib_bkgd.c b/ncurses/base/lib_bkgd.c
index 2150279f060b76b5cb8ebc533bc24256811809c1..5dfe5c6d1dcde536b48625b5b90cdb8874cc6e57 100644 (file)
--- a/ncurses/base/lib_bkgd.c
+++ b/ncurses/base/lib_bkgd.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2011,2012 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2014,2016 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            *
@@ -36,7 +36,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_bkgd.c,v 1.45 2012/03/10 21:20:18 tom Exp $")
+MODULE_ID("$Id: lib_bkgd.c,v 1.50 2016/05/28 23:11:26 tom Exp $")
 
 /*
  * Set the window's background information.
@@ -85,6 +85,7 @@ wbkgrndset(WINDOW *win, const ARG_CH_T ch)
            cchar_t wch;
            int tmp;
 
+           memset(&wch, 0, sizeof(wch));
            (void) wgetbkgrnd(win, &wch);
            tmp = _nc_to_char((wint_t) CharOf(wch));
 
@@ -117,19 +118,23 @@ static NCURSES_INLINE int
 wbkgrnd(WINDOW *win, const ARG_CH_T ch)
 {
     int code = ERR;
-    int x, y;
 
     T((T_CALLED("wbkgd(%p,%s)"), (void *) win, _tracech_t(ch)));
 
     if (win) {
        NCURSES_CH_T new_bkgd = CHDEREF(ch);
        NCURSES_CH_T old_bkgrnd;
-       wgetbkgrnd(win, &old_bkgrnd);
+       int y;
+
+       memset(&old_bkgrnd, 0, sizeof(old_bkgrnd));
+       (void) wgetbkgrnd(win, &old_bkgrnd);
 
        (void) wbkgrndset(win, CHREF(new_bkgd));
        (void) wattrset(win, (int) AttrOf(win->_nc_bkgd));
 
        for (y = 0; y <= win->_maxy; y++) {
+           int x;
+
            for (x = 0; x <= win->_maxx; x++) {
                if (CharEq(win->_line[y].text[x], old_bkgrnd)) {
                    win->_line[y].text[x] = win->_nc_bkgd;