1 /****************************************************************************
2 * Copyright 2020-2022,2023 Thomas E. Dickey *
3 * Copyright 1998-2009,2010 Free Software Foundation, Inc. *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
28 ****************************************************************************/
30 /****************************************************************************
31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
32 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
33 * and: Thomas E. Dickey 2002 *
34 * and: Juergen Pfeifer 2009 *
35 ****************************************************************************/
40 * Misc. low-level routines:
45 * The baudrate() and delay_output() functions could logically live here,
46 * but are in other modules to reduce the static-link size of programs
47 * that use only these facilities.
50 #include <curses.priv.h>
52 MODULE_ID("$Id: lib_kernel.c,v 1.36 2023/06/10 13:29:06 tom Exp $")
59 #if defined(_POSIX_VDISABLE) && HAVE_UNISTD_H
60 value = _POSIX_VDISABLE;
62 #if defined(_PC_VDISABLE) && HAVE_FPATHCONF
64 value = (int) fpathconf(0, _PC_VDISABLE);
69 #elif defined(VDISABLE)
80 * Return erase character as given in cur_term->Ottyb.
85 NCURSES_SP_NAME(erasechar) (NCURSES_SP_DCL0)
88 TERMINAL *termp = TerminalOf(SP_PARM);
90 T((T_CALLED("erasechar(%p)"), (void *) SP_PARM));
94 result = termp->Ottyb.c_cc[VERASE];
95 if (result == _nc_vdisable())
97 #elif defined(EXP_WIN32_DRIVER)
100 result = termp->Ottyb.sg_erase;
103 returnChar((char) result);
110 return NCURSES_SP_NAME(erasechar) (CURRENT_SCREEN);
117 * Return kill character as given in cur_term->Ottyb.
122 NCURSES_SP_NAME(killchar) (NCURSES_SP_DCL0)
125 TERMINAL *termp = TerminalOf(SP_PARM);
127 T((T_CALLED("killchar(%p)"), (void *) SP_PARM));
131 result = termp->Ottyb.c_cc[VKILL];
132 if (result == _nc_vdisable())
134 #elif defined(EXP_WIN32_DRIVER)
137 result = termp->Ottyb.sg_kill;
140 returnChar((char) result);
147 return NCURSES_SP_NAME(killchar) (CURRENT_SCREEN);
155 tcflush(fd, TCIFLUSH);
159 #if defined(EXP_WIN32_DRIVER)
160 _nc_console_flush(_nc_console_fd2handle(fd));
162 ioctl(fd, TIOCFLUSH, 0);
172 * Flush any input on tty
176 NCURSES_SP_NAME(flushinp) (NCURSES_SP_DCL0)
178 T((T_CALLED("flushinp(%p)"), (void *) SP_PARM));
181 if (NC_ISATTY(SP_PARM->_ifd))
182 flush_input(SP_PARM->_ifd);
183 else if (NC_ISATTY(SP_PARM->_ofd))
184 flush_input(SP_PARM->_ofd);
186 SP_PARM->_fifohead = -1;
187 SP_PARM->_fifotail = 0;
188 SP_PARM->_fifopeek = 0;
199 return NCURSES_SP_NAME(flushinp) (CURRENT_SCREEN);