/****************************************************************************
* Copyright (c) 1998-2007,2008 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. *
****************************************************************************/
/*
* def_prog_mode()
* def_shell_mode()
* reset_prog_mode()
* reset_shell_mode()
* savetty()
* resetty()
*/
#include <curses.priv.h>
#include <term.h> /* cur_term */
MODULE_ID("$Id: lib_ttyflags.c,v 1.16 2008/05/03 22:39:03 tom Exp $")
NCURSES_EXPORT(int)
_nc_get_tty_mode(TTY * buf)
{
int result = OK;
if (buf == 0) {
result = ERR;
} else {
if (cur_term == 0) {
result = ERR;
} else {
for (;;) {
if (GET_TTY(cur_term->Filedes, buf) != 0) {
if (errno == EINTR)
continue;
result = ERR;
}
break;
}
}
if (result == ERR)
memset(buf, 0, sizeof(*buf));
TR(TRACE_BITS, ("_nc_get_tty_mode(%d): %s",
cur_term->Filedes, _nc_trace_ttymode(buf)));
}
return (result);
}
NCURSES_EXPORT(int)
_nc_set_tty_mode(TTY * buf)
{
int result = OK;
if (buf == 0) {
result = ERR;
} else {
if (cur_term == 0) {
result = ERR;
} else {
for (;;) {
if (SET_TTY(cur_term->Filedes, buf) != 0) {
if (errno == EINTR)
continue;
if ((errno == ENOTTY) && (SP != 0))
SP->_notty = TRUE;
result = ERR;
}
break;
}
}
TR(TRACE_BITS, ("_nc_set_tty_mode(%d): %s",
cur_term->Filedes, _nc_trace_ttymode(buf)));
}
return (result);
}
NCURSES_EXPORT(int)
def_shell_mode(void)
{
T((T_CALLED("def_shell_mode()")));
/*
* If XTABS was on, remove the tab and backtab capabilities.
*/
if (_nc_get_tty_mode(&cur_term->Ottyb) != OK)
returnCode(ERR);
#ifdef TERMIOS
if (cur_term->Ottyb.c_oflag & OFLAGS_TABS)
tab = back_tab = NULL;
#else
if (cur_term->Ottyb.sg_flags & XTABS)
tab = back_tab = NULL;
#endif
returnCode(OK);
}
NCURSES_EXPORT(int)
def_prog_mode(void)
{
T((T_CALLED("def_prog_mode()")));
/*
* Turn off the XTABS bit in the tty structure if it was on.
*/
if (_nc_get_tty_mode(&cur_term->Nttyb) != OK)
returnCode(ERR);
#ifdef TERMIOS
cur_term->Nttyb.c_oflag &= ~OFLAGS_TABS;
#else
cur_term->Nttyb.sg_flags &= ~XTABS;
#endif
returnCode(OK);
}
NCURSES_EXPORT(int)
reset_prog_mode(void)
{
T((T_CALLED("reset_prog_mode()")));
if (cur_term != 0) {
if (_nc_set_tty_mode(&cur_term->Nttyb) == OK) {
if (SP) {
if (SP->_keypad_on)
_nc_keypad(SP, TRUE);
NC_BUFFERED(TRUE);
}
returnCode(OK);
}
}
returnCode(ERR);
}
NCURSES_EXPORT(int)
reset_shell_mode(void)
{
T((T_CALLED("reset_shell_mode()")));
if (cur_term != 0) {
if (SP) {
_nc_keypad(SP, FALSE);
_nc_flush();
NC_BUFFERED(FALSE);
}
returnCode(_nc_set_tty_mode(&cur_term->Ottyb));
}
returnCode(ERR);
}
static TTY *
saved_tty(void)
{
TTY *result = 0;
if (SP != 0) {
result = &(SP->_saved_tty);
} else {
if (_nc_prescreen.saved_tty == 0) {
_nc_prescreen.saved_tty = typeCalloc(TTY, 1);
}
result = _nc_prescreen.saved_tty;
}
return result;
}
/*
** savetty() and resetty()
**
*/
NCURSES_EXPORT(int)
savetty(void)
{
T((T_CALLED("savetty()")));
returnCode(_nc_get_tty_mode(saved_tty()));
}
NCURSES_EXPORT(int)
resetty(void)
{
T((T_CALLED("resetty()")));
returnCode(_nc_set_tty_mode(saved_tty()));
}
