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Fix (I hope) the bounding checks against the source window.

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This commit is contained in:
dsl 2004-08-02 18:47:52 +00:00
parent 158fe62cd6
commit 75c6c76be7
1 changed files with 5 additions and 5 deletions
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10
lib/libcurses/copywin.c
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@ -1,4 +1,4 @@
/* $NetBSD: copywin.c,v 1.10 2004/08/01 21:48:24 dsl Exp $ */
/* $NetBSD: copywin.c,v 1.11 2004/08/02 18:47:52 dsl Exp $ */
/*-
* Copyright (c) 1998-1999 Brett Lymn
@ -31,7 +31,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: copywin.c,v 1.10 2004/08/01 21:48:24 dsl Exp $");
__RCSID("$NetBSD: copywin.c,v 1.11 2004/08/02 18:47:52 dsl Exp $");
#endif /* not lint */
#include <ctype.h>
@ -79,16 +79,16 @@ int copywin(const WINDOW *srcwin, WINDOW *dstwin,
if (dmaxcol >= dstwin->maxx)
dmaxcol = dstwin->maxx - 1;
if (smincol + (dmaxcol - dmincol) >= srcwin->maxx)
dmaxcol = srcwin->maxx + dmincol - smincol;
dmaxcol = srcwin->maxx + dmincol - smincol - 1;
if (dmaxcol < dmincol)
/* nothing in the intersection */
return OK;
/* Bound dmaxrow for both windows (should be ok for dstwin) */
if (dmaxrow >= dstwin->maxx)
if (dmaxrow >= dstwin->maxy)
dmaxrow = dstwin->maxy - 1;
if (sminrow + (dmaxrow - dminrow) >= srcwin->maxy)
dmaxrow = srcwin->maxx + dminrow - sminrow;
dmaxrow = srcwin->maxy + dminrow - sminrow - 1;
#ifdef DEBUG
__CTRACE("copywin %s mode: from (%d,%d) to (%d,%d-%d,%d)\n",