/*	$OpenBSD: lib_instr.c,v 1.4 1998/07/23 21:18:56 millert Exp $	*/

/****************************************************************************
 * Copyright (c) 1998 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            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/


/*
**	lib_instr.c
**
**	The routine winnstr().
**
*/

#include <curses.priv.h>

MODULE_ID("$From: lib_instr.c,v 1.8 1998/02/11 12:13:54 tom Exp $")

int winnstr(WINDOW *win, char *str, int n)
{
	int	i=0, row, col;

	T((T_CALLED("winnstr(%p,%p,%d)"), win, str, n));

	if (!str)
	  returnCode(0);
	
	if (win) {
	  getyx(win, row, col);

	  if (n < 0)
	    n = win->_maxx - win->_curx + 1;

	  for (; i < n;) {
	    str[i++] = TextOf(win->_line[row].text[col]);
	    if (++col > win->_maxx) {
	      col = 0;
	      if (++row > win->_maxy)
		break;
	    }
	  }
	}
	str[i] = '\0';	/* SVr4 does not seem to count the null */
	returnCode(i);
}