X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_bkgd.c;h=5dfe5c6d1dcde536b48625b5b90cdb8874cc6e57;hp=2150279f060b76b5cb8ebc533bc24256811809c1;hb=76a479337308b4b5e749fa8c38b7b7f482998c5b;hpb=ba39fbc2e0cee4681395df4079d9e61c27262132

diff --git a/ncurses/base/lib_bkgd.c b/ncurses/base/lib_bkgd.c
index 2150279f..5dfe5c6d 100644
--- 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;