GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/base/lib_screen.c Lines: 0 89 0.0 %
Date: 2017-11-13 Branches: 0 76 0.0 %

Line Branch Exec Source
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/* $OpenBSD: lib_screen.c,v 1.4 2010/01/12 23:22:06 nicm Exp $ */
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/****************************************************************************
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 * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc.              *
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 *                                                                          *
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 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * copy of this software and associated documentation files (the            *
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 * "Software"), to deal in the Software without restriction, including      *
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 * without limitation the rights to use, copy, modify, merge, publish,      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * furnished to do so, subject to the following conditions:                 *
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 *                                                                          *
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 * The above copyright notice and this permission notice shall be included  *
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 * in all copies or substantial portions of the Software.                   *
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 *                                                                          *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 *                                                                          *
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 * Except as contained in this notice, the name(s) of the above copyright   *
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 * holders shall not be used in advertising or otherwise to promote the     *
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 * sale, use or other dealings in this Software without prior written       *
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 * authorization.                                                           *
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 ****************************************************************************/
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/****************************************************************************
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 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
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 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
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 *     and: Thomas E. Dickey                        1996 on                 *
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 ****************************************************************************/
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#include <curses.priv.h>
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MODULE_ID("$Id: lib_screen.c,v 1.4 2010/01/12 23:22:06 nicm Exp $")
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#define MAX_SIZE 0x3fff		/* 16k is big enough for a window or pad */
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NCURSES_EXPORT(WINDOW *)
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getwin(FILE *filep)
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{
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    WINDOW tmp, *nwin;
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    int n;
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    T((T_CALLED("getwin(%p)"), filep));
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    clearerr(filep);
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    (void) fread(&tmp, sizeof(WINDOW), 1, filep);
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    if (ferror(filep)
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	|| tmp._maxy == 0
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	|| tmp._maxy > MAX_SIZE
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	|| tmp._maxx == 0
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	|| tmp._maxx > MAX_SIZE)
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	returnWin(0);
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    if (tmp._flags & _ISPAD) {
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	nwin = newpad(tmp._maxy + 1, tmp._maxx + 1);
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    } else {
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	nwin = newwin(tmp._maxy + 1, tmp._maxx + 1, 0, 0);
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    }
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    /*
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     * We deliberately do not restore the _parx, _pary, or _parent
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     * fields, because the window hierarchy within which they
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     * made sense is probably gone.
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     */
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    if (nwin != 0) {
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	nwin->_curx = tmp._curx;
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	nwin->_cury = tmp._cury;
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	nwin->_maxy = tmp._maxy;
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	nwin->_maxx = tmp._maxx;
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	nwin->_begy = tmp._begy;
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	nwin->_begx = tmp._begx;
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	nwin->_yoffset = tmp._yoffset;
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	nwin->_flags = tmp._flags & ~(_SUBWIN);
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	WINDOW_ATTRS(nwin) = WINDOW_ATTRS(&tmp);
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	nwin->_nc_bkgd = tmp._nc_bkgd;
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	nwin->_notimeout = tmp._notimeout;
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	nwin->_clear = tmp._clear;
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	nwin->_leaveok = tmp._leaveok;
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	nwin->_idlok = tmp._idlok;
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	nwin->_idcok = tmp._idcok;
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	nwin->_immed = tmp._immed;
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	nwin->_scroll = tmp._scroll;
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	nwin->_sync = tmp._sync;
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	nwin->_use_keypad = tmp._use_keypad;
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	nwin->_delay = tmp._delay;
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	nwin->_regtop = tmp._regtop;
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	nwin->_regbottom = tmp._regbottom;
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	if (tmp._flags & _ISPAD)
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	    nwin->_pad = tmp._pad;
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	for (n = 0; n <= nwin->_maxy; n++) {
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	    clearerr(filep);
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	    (void) fread(nwin->_line[n].text,
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			 sizeof(NCURSES_CH_T),
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			 (size_t) (nwin->_maxx + 1),
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			 filep);
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	    if (ferror(filep)) {
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		delwin(nwin);
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		returnWin(0);
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	    }
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	}
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	touchwin(nwin);
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    }
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    returnWin(nwin);
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}
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NCURSES_EXPORT(int)
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putwin(WINDOW *win, FILE *filep)
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{
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    int code = ERR;
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    int n;
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    T((T_CALLED("putwin(%p,%p)"), win, filep));
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    if (win != 0) {
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	size_t len = (size_t) (win->_maxx + 1);
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	clearerr(filep);
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	if (fwrite(win, sizeof(WINDOW), 1, filep) != 1
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	    || ferror(filep))
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	      returnCode(code);
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	for (n = 0; n <= win->_maxy; n++) {
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	    if (fwrite(win->_line[n].text,
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		       sizeof(NCURSES_CH_T), len, filep) != len
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		|| ferror(filep)) {
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		returnCode(code);
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	    }
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	}
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	code = OK;
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    }
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    returnCode(code);
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}
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NCURSES_EXPORT(int)
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scr_restore(const char *file)
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{
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    FILE *fp = 0;
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    T((T_CALLED("scr_restore(%s)"), _nc_visbuf(file)));
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    if (_nc_access(file, R_OK) < 0
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	|| (fp = fopen(file, "rb")) == 0) {
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	returnCode(ERR);
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    } else {
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	delwin(newscr);
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	SP->_newscr = getwin(fp);
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#if !USE_REENTRANT
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	newscr = SP->_newscr;
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#endif
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	(void) fclose(fp);
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	returnCode(OK);
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    }
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}
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NCURSES_EXPORT(int)
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scr_dump(const char *file)
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{
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    FILE *fp = 0;
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    T((T_CALLED("scr_dump(%s)"), _nc_visbuf(file)));
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    if (_nc_access(file, W_OK) < 0
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	|| (fp = fopen(file, "wb")) == 0) {
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	returnCode(ERR);
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    } else {
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	(void) putwin(newscr, fp);
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	(void) fclose(fp);
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	returnCode(OK);
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    }
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}
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NCURSES_EXPORT(int)
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scr_init(const char *file)
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{
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    FILE *fp = 0;
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    T((T_CALLED("scr_init(%s)"), _nc_visbuf(file)));
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    if (exit_ca_mode && non_rev_rmcup)
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	returnCode(ERR);
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    if (_nc_access(file, R_OK) < 0
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	|| (fp = fopen(file, "rb")) == 0) {
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	returnCode(ERR);
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    } else {
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	delwin(curscr);
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	SP->_curscr = getwin(fp);
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#if !USE_REENTRANT
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	curscr = SP->_curscr;
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#endif
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	(void) fclose(fp);
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	returnCode(OK);
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    }
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}
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NCURSES_EXPORT(int)
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scr_set(const char *file)
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{
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    T((T_CALLED("scr_set(%s)"), _nc_visbuf(file)));
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    if (scr_init(file) == ERR) {
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	returnCode(ERR);
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    } else {
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	delwin(newscr);
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	SP->_newscr = dupwin(curscr);
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#if !USE_REENTRANT
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	newscr = SP->_newscr;
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#endif
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	returnCode(OK);
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    }
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}