/* $OpenBSD: lib_raw.c,v 1.8 2010/01/12 23:22:06 nicm Exp $ */ /**************************************************************************** * Copyright (c) 1998-2002,2007 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 1992,1995 * * and: Eric S. Raymond * * and: Thomas E. Dickey 1998 on * ****************************************************************************/ /* * raw.c * * Routines: * raw() * cbreak() * noraw() * nocbreak() * qiflush() * noqiflush() * intrflush() * */ #include #include /* cur_term */ MODULE_ID("$Id: lib_raw.c,v 1.8 2010/01/12 23:22:06 nicm Exp $") #if SVR4_TERMIO && !defined(_POSIX_SOURCE) #define _POSIX_SOURCE #endif #if HAVE_SYS_TERMIO_H #include /* needed for ISC */ #endif #ifdef __EMX__ #include #define _nc_setmode(mode) setmode(SP->_ifd, mode) #else #define _nc_setmode(mode) /* nothing */ #endif #define COOKED_INPUT (IXON|BRKINT|PARMRK) #ifdef TRACE #define BEFORE(N) if (USE_TRACEF(TRACE_BITS)) _nc_locked_tracef("%s before bits: %s", N, _nc_tracebits()) #define AFTER(N) if (USE_TRACEF(TRACE_BITS)) _nc_locked_tracef("%s after bits: %s", N, _nc_tracebits()) #else #define BEFORE(s) #define AFTER(s) #endif /* TRACE */ NCURSES_EXPORT(int) raw(void) { int result = ERR; T((T_CALLED("raw()"))); if (SP != 0 && cur_term != 0) { TTY buf; BEFORE("raw"); _nc_setmode(O_BINARY); buf = cur_term->Nttyb; #ifdef TERMIOS buf.c_lflag &= ~(ICANON | ISIG | IEXTEN); buf.c_iflag &= ~(COOKED_INPUT); buf.c_cc[VMIN] = 1; buf.c_cc[VTIME] = 0; #else buf.sg_flags |= RAW; #endif if ((result = _nc_set_tty_mode(&buf)) == OK) { SP->_raw = TRUE; SP->_cbreak = 1; cur_term->Nttyb = buf; } AFTER("raw"); } returnCode(result); } NCURSES_EXPORT(int) cbreak(void) { int result = ERR; T((T_CALLED("cbreak()"))); if (SP != 0 && cur_term != 0) { TTY buf; BEFORE("cbreak"); _nc_setmode(O_BINARY); buf = cur_term->Nttyb; #ifdef TERMIOS buf.c_lflag &= ~ICANON; buf.c_iflag &= ~ICRNL; buf.c_lflag |= ISIG; buf.c_cc[VMIN] = 1; buf.c_cc[VTIME] = 0; #else buf.sg_flags |= CBREAK; #endif if ((result = _nc_set_tty_mode(&buf)) == OK) { SP->_cbreak = 1; cur_term->Nttyb = buf; } AFTER("cbreak"); } returnCode(result); } /* * Note: * this implementation may be wrong. See the comment under intrflush(). */ NCURSES_EXPORT(void) qiflush(void) { int result = ERR; T((T_CALLED("qiflush()"))); if (cur_term != 0) { TTY buf; BEFORE("qiflush"); buf = cur_term->Nttyb; #ifdef TERMIOS buf.c_lflag &= ~(NOFLSH); result = _nc_set_tty_mode(&buf); #else /* FIXME */ #endif if (result == OK) cur_term->Nttyb = buf; AFTER("qiflush"); } returnVoid; } NCURSES_EXPORT(int) noraw(void) { int result = ERR; T((T_CALLED("noraw()"))); if (SP != 0 && cur_term != 0) { TTY buf; BEFORE("noraw"); _nc_setmode(O_TEXT); buf = cur_term->Nttyb; #ifdef TERMIOS buf.c_lflag |= ISIG | ICANON | (cur_term->Ottyb.c_lflag & IEXTEN); buf.c_iflag |= COOKED_INPUT; #else buf.sg_flags &= ~(RAW | CBREAK); #endif if ((result = _nc_set_tty_mode(&buf)) == OK) { SP->_raw = FALSE; SP->_cbreak = 0; cur_term->Nttyb = buf; } AFTER("noraw"); } returnCode(result); } NCURSES_EXPORT(int) nocbreak(void) { int result = ERR; T((T_CALLED("nocbreak()"))); if (SP != 0 && cur_term != 0) { TTY buf; BEFORE("nocbreak"); _nc_setmode(O_TEXT); buf = cur_term->Nttyb; #ifdef TERMIOS buf.c_lflag |= ICANON; buf.c_iflag |= ICRNL; #else buf.sg_flags &= ~CBREAK; #endif if ((result = _nc_set_tty_mode(&buf)) == OK) { SP->_cbreak = 0; cur_term->Nttyb = buf; } AFTER("nocbreak"); } returnCode(result); } /* * Note: * this implementation may be wrong. See the comment under intrflush(). */ NCURSES_EXPORT(void) noqiflush(void) { int result = ERR; T((T_CALLED("noqiflush()"))); if (cur_term != 0) { TTY buf; BEFORE("noqiflush"); buf = cur_term->Nttyb; #ifdef TERMIOS buf.c_lflag |= NOFLSH; result = _nc_set_tty_mode(&buf); #else /* FIXME */ #endif if (result == OK) { cur_term->Nttyb = buf; } AFTER("noqiflush"); } returnVoid; } /* * This call does the same thing as the qiflush()/noqiflush() pair. We know * for certain that SVr3 intrflush() tweaks the NOFLSH bit; on the other hand, * the match (in the SVr4 man pages) between the language describing NOFLSH in * termio(7) and the language describing qiflush()/noqiflush() in * curs_inopts(3x) is too exact to be coincidence. */ NCURSES_EXPORT(int) intrflush(WINDOW *win GCC_UNUSED, bool flag) { int result = ERR; T((T_CALLED("intrflush(%d)"), flag)); if (cur_term != 0) { TTY buf; BEFORE("intrflush"); buf = cur_term->Nttyb; #ifdef TERMIOS if (flag) buf.c_lflag &= ~(NOFLSH); else buf.c_lflag |= (NOFLSH); result = _nc_set_tty_mode(&buf); #else /* FIXME */ #endif if (result == OK) { cur_term->Nttyb = buf; } AFTER("intrflush"); } returnCode(result); }