GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/tinfo/lib_ttyflags.c Lines: 11 56 19.6 %
Date: 2017-11-13 Branches: 6 46 13.0 %

Line Branch Exec Source
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/* $OpenBSD: lib_ttyflags.c,v 1.5 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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 *		def_prog_mode()
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 *		def_shell_mode()
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 *		reset_prog_mode()
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 *		reset_shell_mode()
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 *		savetty()
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 *		resetty()
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 */
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#include <curses.priv.h>
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#include <term.h>		/* cur_term */
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MODULE_ID("$Id: lib_ttyflags.c,v 1.5 2010/01/12 23:22:06 nicm Exp $")
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NCURSES_EXPORT(int)
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_nc_get_tty_mode(TTY * buf)
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{
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    int result = OK;
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    if (buf == 0) {
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	result = ERR;
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    } else {
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	if (cur_term == 0) {
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	    result = ERR;
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	} else {
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	    for (;;) {
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		if (GET_TTY(cur_term->Filedes, buf) != 0) {
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		    if (errno == EINTR)
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			continue;
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		    result = ERR;
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		}
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		break;
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	    }
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	}
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	if (result == ERR)
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	    memset(buf, 0, sizeof(*buf));
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	TR(TRACE_BITS, ("_nc_get_tty_mode(%d): %s",
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			cur_term ? cur_term->Filedes : -1,
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			_nc_trace_ttymode(buf)));
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    }
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    return (result);
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}
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NCURSES_EXPORT(int)
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_nc_set_tty_mode(TTY * buf)
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{
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    int result = OK;
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    if (buf == 0) {
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	result = ERR;
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    } else {
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	if (cur_term == 0) {
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	    result = ERR;
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	} else {
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	    for (;;) {
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		if (SET_TTY(cur_term->Filedes, buf) != 0) {
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		    if (errno == EINTR)
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			continue;
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		    if ((errno == ENOTTY) && (SP != 0))
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			SP->_notty = TRUE;
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		    result = ERR;
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		}
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		break;
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	    }
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	}
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	TR(TRACE_BITS, ("_nc_set_tty_mode(%d): %s",
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			cur_term ? cur_term->Filedes : -1,
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			_nc_trace_ttymode(buf)));
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    }
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    return (result);
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}
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NCURSES_EXPORT(int)
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def_shell_mode(void)
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{
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    int rc = ERR;
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    T((T_CALLED("def_shell_mode()")));
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    if (cur_term != 0) {
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	/*
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	 * If XTABS was on, remove the tab and backtab capabilities.
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	 */
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	if (_nc_get_tty_mode(&cur_term->Ottyb) == OK) {
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#ifdef TERMIOS
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	    if (cur_term->Ottyb.c_oflag & OFLAGS_TABS)
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		tab = back_tab = NULL;
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#else
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	    if (cur_term->Ottyb.sg_flags & XTABS)
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		tab = back_tab = NULL;
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#endif
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	    rc = OK;
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	}
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    }
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    returnCode(rc);
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}
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NCURSES_EXPORT(int)
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def_prog_mode(void)
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{
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    int rc = ERR;
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    T((T_CALLED("def_prog_mode()")));
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    if (cur_term != 0) {
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	/*
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	 * Turn off the XTABS bit in the tty structure if it was on.
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	 */
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	if (_nc_get_tty_mode(&cur_term->Nttyb) == OK) {
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#ifdef TERMIOS
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	    cur_term->Nttyb.c_oflag &= ~OFLAGS_TABS;
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#else
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	    cur_term->Nttyb.sg_flags &= ~XTABS;
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#endif
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	    rc = OK;
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	}
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    }
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    returnCode(rc);
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}
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NCURSES_EXPORT(int)
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reset_prog_mode(void)
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{
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    T((T_CALLED("reset_prog_mode()")));
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    if (cur_term != 0) {
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	if (_nc_set_tty_mode(&cur_term->Nttyb) == OK) {
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	    if (SP) {
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		if (SP->_keypad_on)
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		    _nc_keypad(SP, TRUE);
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		NC_BUFFERED(TRUE);
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	    }
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	    returnCode(OK);
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	}
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    }
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    returnCode(ERR);
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}
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NCURSES_EXPORT(int)
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reset_shell_mode(void)
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{
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    T((T_CALLED("reset_shell_mode()")));
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    if (cur_term != 0) {
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	if (SP) {
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	    _nc_keypad(SP, FALSE);
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	    _nc_flush();
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	    NC_BUFFERED(FALSE);
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	}
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	returnCode(_nc_set_tty_mode(&cur_term->Ottyb));
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    }
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    returnCode(ERR);
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}
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static TTY *
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saved_tty(void)
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{
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    TTY *result = 0;
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    if (SP != 0) {
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	result = &(SP->_saved_tty);
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    } else {
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	if (_nc_prescreen.saved_tty == 0) {
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	    _nc_prescreen.saved_tty = typeCalloc(TTY, 1);
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	}
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	result = _nc_prescreen.saved_tty;
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    }
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    return result;
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}
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/*
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**	savetty()  and  resetty()
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**
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*/
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NCURSES_EXPORT(int)
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savetty(void)
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{
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    T((T_CALLED("savetty()")));
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    returnCode(_nc_get_tty_mode(saved_tty()));
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}
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NCURSES_EXPORT(int)
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resetty(void)
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{
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    T((T_CALLED("resetty()")));
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    returnCode(_nc_set_tty_mode(saved_tty()));
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}