1 /**************************************************************************** 2 * Copyright (c) 1998 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 ****************************************************************************/ 33 34 35 /* 36 * lib_kernel.c 37 * 38 * Misc. low-level routines: 39 * erasechar() 40 * killchar() 41 * flushinp() 42 * 43 * The baudrate() and delay_output() functions could logically live here, 44 * but are in other modules to reduce the static-link size of programs 45 * that use only these facilities. 46 */ 47 48 #include <curses.priv.h> 49 #include <term.h> /* cur_term */ 50 51 MODULE_ID("$Id: lib_kernel.c,v 1.19 1998/12/20 00:18:45 tom Exp $") 52 53 /* 54 * erasechar() 55 * 56 * Return erase character as given in cur_term->Ottyb. 57 * 58 */ 59 60 char 61 erasechar(void) 62 { 63 T((T_CALLED("erasechar()"))); 64 65 if (cur_term != 0) { 66 #ifdef TERMIOS 67 returnCode(cur_term->Ottyb.c_cc[VERASE]); 68 #else 69 returnCode(cur_term->Ottyb.sg_erase); 70 #endif 71 } 72 returnCode(ERR); 73 } 74 75 76 77 /* 78 * killchar() 79 * 80 * Return kill character as given in cur_term->Ottyb. 81 * 82 */ 83 84 char 85 killchar(void) 86 { 87 T((T_CALLED("killchar()"))); 88 89 if (cur_term != 0) { 90 #ifdef TERMIOS 91 returnCode(cur_term->Ottyb.c_cc[VKILL]); 92 #else 93 returnCode(cur_term->Ottyb.sg_kill); 94 #endif 95 } 96 returnCode(ERR); 97 } 98 99 100 101 /* 102 * flushinp() 103 * 104 * Flush any input on cur_term->Filedes 105 * 106 */ 107 108 int flushinp(void) 109 { 110 T((T_CALLED("flushinp()"))); 111 112 if (cur_term != 0) { 113 #ifdef TERMIOS 114 tcflush(cur_term->Filedes, TCIFLUSH); 115 #else 116 errno = 0; 117 do { 118 ioctl(cur_term->Filedes, TIOCFLUSH, 0); 119 } while 120 (errno == EINTR); 121 #endif 122 if (SP) { 123 SP->_fifohead = -1; 124 SP->_fifotail = 0; 125 SP->_fifopeek = 0; 126 } 127 returnCode(OK); 128 } 129 returnCode(ERR); 130 } 131