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/* $OpenBSD: lib_kernel.c,v 1.5 1998/07/23 21:18:58 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_kernel.c
*
* Misc. low-level routines:
* reset_prog_mode()
* reset_shell_mode()
* erasechar()
* killchar()
* flushinp()
* savetty()
* resetty()
*
* The baudrate() and delay_output() functions could logically live here,
* but are in other modules to reduce the static-link size of programs
* that use only these facilities.
*/
#include <curses.priv.h>
#include <term.h> /* cur_term */
MODULE_ID("$From: lib_kernel.c,v 1.17 1998/02/11 12:13:57 tom Exp $")
int reset_prog_mode(void)
{
T((T_CALLED("reset_prog_mode()")));
if (cur_term != 0) {
_nc_set_curterm(&cur_term->Nttyb);
if (SP && stdscr && stdscr->_use_keypad)
_nc_keypad(TRUE);
returnCode(OK);
}
returnCode(ERR);
}
int reset_shell_mode(void)
{
T((T_CALLED("reset_shell_mode()")));
if (cur_term != 0) {
if (SP)
{
fflush(SP->_ofp);
_nc_keypad(FALSE);
}
returnCode(_nc_set_curterm(&cur_term->Ottyb));
}
returnCode(ERR);
}
/*
* erasechar()
*
* Return erase character as given in cur_term->Ottyb.
*
*/
char
erasechar(void)
{
T((T_CALLED("erasechar()")));
if (cur_term != 0) {
#ifdef TERMIOS
returnCode(cur_term->Ottyb.c_cc[VERASE]);
#else
returnCode(cur_term->Ottyb.sg_erase);
#endif
}
returnCode(ERR);
}
/*
* killchar()
*
* Return kill character as given in cur_term->Ottyb.
*
*/
char
killchar(void)
{
T((T_CALLED("killchar()")));
if (cur_term != 0) {
#ifdef TERMIOS
returnCode(cur_term->Ottyb.c_cc[VKILL]);
#else
returnCode(cur_term->Ottyb.sg_kill);
#endif
}
returnCode(ERR);
}
/*
* flushinp()
*
* Flush any input on cur_term->Filedes
*
*/
int flushinp(void)
{
T((T_CALLED("flushinp()")));
if (cur_term != 0) {
#ifdef TERMIOS
tcflush(cur_term->Filedes, TCIFLUSH);
#else
errno = 0;
do {
ioctl(cur_term->Filedes, TIOCFLUSH, 0);
} while
(errno == EINTR);
#endif
if (SP) {
SP->_fifohead = -1;
SP->_fifotail = 0;
SP->_fifopeek = 0;
}
returnCode(OK);
}
returnCode(ERR);
}
/*
** savetty() and resetty()
**
*/
static TTY buf;
int savetty(void)
{
T((T_CALLED("savetty()")));
returnCode(_nc_get_curterm(&buf));
}
int resetty(void)
{
T((T_CALLED("resetty()")));
returnCode(_nc_set_curterm(&buf));
}
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