OpenSolaris_b135/lib/libxcurses/src/libc/xcurses/winsnstr.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1995, by Sun Microsystems, Inc.
 * All rights reserved.
 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*
 * wins_nws.c
 *
 * XCurses Library
 *
 * Copyright 1990, 1994 by Mortice Kern Systems Inc.  All rights reserved.
 *
 */

#ifdef M_RCSID
#ifndef lint
static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/winsnstr.c 1.2 1995/06/21 20:31:02 ant Exp $";
#endif
#endif

#include <private.h>

int
winsnstr(w, mbs, n)
WINDOW *w;
const char *mbs;
int n;
{
	cchar_t cc;
	int i, y, x;  
	short oflags;

#ifdef M_CURSES_TRACE
	__m_trace("winsnstr(%p, %p, n)", w, mbs, n);
#endif

	y = w->_cury; 
	x = w->_curx;

	if (n < 0)
		n = INT_MAX;

	/* Disable window flushing until the entire string has 
	 * been written into the window.
	 */
	oflags = w->_flags & (W_FLUSH | W_SYNC_UP);
	w->_flags &= ~(W_FLUSH | W_SYNC_UP);

	for ( ; *mbs != '\0' && 0 < n; n -= i, mbs += i) {
		if ((i = __m_mbs_cc(mbs, w->_bg._at, w->_bg._co, &cc)) < 0
		|| __m_wins_wch(w, y, x, &cc, &y, &x) == ERR)
			return __m_return_code("winsnstr", ERR);
	}

	w->_flags |= oflags;

	WSYNC(w);

	return __m_return_code("winsnstr", WFLUSH(w));
}