150276Speter/**************************************************************************** 2166124Srafan * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. * 350276Speter * * 450276Speter * Permission is hereby granted, free of charge, to any person obtaining a * 550276Speter * copy of this software and associated documentation files (the * 650276Speter * "Software"), to deal in the Software without restriction, including * 750276Speter * without limitation the rights to use, copy, modify, merge, publish, * 850276Speter * distribute, distribute with modifications, sublicense, and/or sell * 950276Speter * copies of the Software, and to permit persons to whom the Software is * 1050276Speter * furnished to do so, subject to the following conditions: * 1150276Speter * * 1250276Speter * The above copyright notice and this permission notice shall be included * 1350276Speter * in all copies or substantial portions of the Software. * 1450276Speter * * 1550276Speter * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 1650276Speter * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 1750276Speter * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 1850276Speter * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 1950276Speter * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 2050276Speter * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 2150276Speter * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 2250276Speter * * 2350276Speter * Except as contained in this notice, the name(s) of the above copyright * 2450276Speter * holders shall not be used in advertising or otherwise to promote the * 2550276Speter * sale, use or other dealings in this Software without prior written * 2650276Speter * authorization. * 2750276Speter ****************************************************************************/ 2850276Speter 2950276Speter/**************************************************************************** 3050276Speter * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 3150276Speter * and: Eric S. Raymond <esr@snark.thyrsus.com> * 3297049Speter * and: Thomas E. Dickey 2002 * 3350276Speter ****************************************************************************/ 3450276Speter 3550276Speter/* 3650276Speter * lib_kernel.c 3750276Speter * 3850276Speter * Misc. low-level routines: 3950276Speter * erasechar() 4050276Speter * killchar() 4150276Speter * flushinp() 4250276Speter * 4350276Speter * The baudrate() and delay_output() functions could logically live here, 4450276Speter * but are in other modules to reduce the static-link size of programs 4550276Speter * that use only these facilities. 4650276Speter */ 4750276Speter 4850276Speter#include <curses.priv.h> 4976726Speter#include <term.h> /* cur_term */ 5050276Speter 51166124SrafanMODULE_ID("$Id: lib_kernel.c,v 1.24 2004/05/08 17:11:21 tom Exp $") 5250276Speter 5397049Speterstatic int 5497049Speter_nc_vdisable(void) 5597049Speter{ 56166124Srafan int value = -1; 57166124Srafan#if defined(_POSIX_VDISABLE) && HAVE_UNISTD_H 5897049Speter value = _POSIX_VDISABLE; 5997049Speter#endif 6097049Speter#if defined(_PC_VDISABLE) 6197049Speter if (value == -1) { 6297049Speter value = fpathconf(0, _PC_VDISABLE); 6397049Speter if (value == -1) { 6497049Speter value = 0377; 6597049Speter } 6697049Speter } 6797049Speter#elif defined(VDISABLE) 6897049Speter if (value == -1) 6997049Speter value = VDISABLE; 7097049Speter#endif 7197049Speter return value; 7297049Speter} 7397049Speter 7450276Speter/* 7550276Speter * erasechar() 7650276Speter * 7750276Speter * Return erase character as given in cur_term->Ottyb. 7850276Speter * 7950276Speter */ 8050276Speter 8176726SpeterNCURSES_EXPORT(char) 8250276Spetererasechar(void) 8350276Speter{ 8497049Speter int result = ERR; 8576726Speter T((T_CALLED("erasechar()"))); 8650276Speter 8776726Speter if (cur_term != 0) { 8850276Speter#ifdef TERMIOS 8997049Speter result = cur_term->Ottyb.c_cc[VERASE]; 9097049Speter if (result == _nc_vdisable()) 9197049Speter result = ERR; 9250276Speter#else 9397049Speter result = cur_term->Ottyb.sg_erase; 9450276Speter#endif 9576726Speter } 9697049Speter returnCode(result); 9750276Speter} 9850276Speter 9950276Speter/* 10050276Speter * killchar() 10150276Speter * 10250276Speter * Return kill character as given in cur_term->Ottyb. 10350276Speter * 10450276Speter */ 10550276Speter 10676726SpeterNCURSES_EXPORT(char) 10750276Speterkillchar(void) 10850276Speter{ 10997049Speter int result = ERR; 11076726Speter T((T_CALLED("killchar()"))); 11150276Speter 11276726Speter if (cur_term != 0) { 11350276Speter#ifdef TERMIOS 11497049Speter result = cur_term->Ottyb.c_cc[VKILL]; 11597049Speter if (result == _nc_vdisable()) 11697049Speter result = ERR; 11750276Speter#else 11897049Speter result = cur_term->Ottyb.sg_kill; 11950276Speter#endif 12076726Speter } 12197049Speter returnCode(result); 12250276Speter} 12350276Speter 12450276Speter/* 12550276Speter * flushinp() 12650276Speter * 12750276Speter * Flush any input on cur_term->Filedes 12850276Speter * 12950276Speter */ 13050276Speter 13176726SpeterNCURSES_EXPORT(int) 13276726Speterflushinp(void) 13350276Speter{ 13476726Speter T((T_CALLED("flushinp()"))); 13550276Speter 13676726Speter if (cur_term != 0) { 13750276Speter#ifdef TERMIOS 13876726Speter tcflush(cur_term->Filedes, TCIFLUSH); 13950276Speter#else 14076726Speter errno = 0; 14176726Speter do { 14276726Speter ioctl(cur_term->Filedes, TIOCFLUSH, 0); 14376726Speter } while 14476726Speter (errno == EINTR); 14550276Speter#endif 14676726Speter if (SP) { 14776726Speter SP->_fifohead = -1; 14876726Speter SP->_fifotail = 0; 14976726Speter SP->_fifopeek = 0; 15050276Speter } 15176726Speter returnCode(OK); 15276726Speter } 15376726Speter returnCode(ERR); 15450276Speter} 155