1 /* $OpenBSD: lib_kernel.c,v 1.1 1999/01/18 19:10:17 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 ****************************************************************************/ 35 36 37 /* 38 * lib_kernel.c 39 * 40 * Misc. low-level routines: 41 * erasechar() 42 * killchar() 43 * flushinp() 44 * 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. 48 */ 49 50 #include <curses.priv.h> 51 #include <term.h> /* cur_term */ 52 53 MODULE_ID("$From: lib_kernel.c,v 1.19 1998/12/20 00:18:45 tom Exp $") 54 55 /* 56 * erasechar() 57 * 58 * Return erase character as given in cur_term->Ottyb. 59 * 60 */ 61 62 char 63 erasechar(void) 64 { 65 T((T_CALLED("erasechar()"))); 66 67 if (cur_term != 0) { 68 #ifdef TERMIOS 69 returnCode(cur_term->Ottyb.c_cc[VERASE]); 70 #else 71 returnCode(cur_term->Ottyb.sg_erase); 72 #endif 73 } 74 returnCode(ERR); 75 } 76 77 78 79 /* 80 * killchar() 81 * 82 * Return kill character as given in cur_term->Ottyb. 83 * 84 */ 85 86 char 87 killchar(void) 88 { 89 T((T_CALLED("killchar()"))); 90 91 if (cur_term != 0) { 92 #ifdef TERMIOS 93 returnCode(cur_term->Ottyb.c_cc[VKILL]); 94 #else 95 returnCode(cur_term->Ottyb.sg_kill); 96 #endif 97 } 98 returnCode(ERR); 99 } 100 101 102 103 /* 104 * flushinp() 105 * 106 * Flush any input on cur_term->Filedes 107 * 108 */ 109 110 int flushinp(void) 111 { 112 T((T_CALLED("flushinp()"))); 113 114 if (cur_term != 0) { 115 #ifdef TERMIOS 116 tcflush(cur_term->Filedes, TCIFLUSH); 117 #else 118 errno = 0; 119 do { 120 ioctl(cur_term->Filedes, TIOCFLUSH, 0); 121 } while 122 (errno == EINTR); 123 #endif 124 if (SP) { 125 SP->_fifohead = -1; 126 SP->_fifotail = 0; 127 SP->_fifopeek = 0; 128 } 129 returnCode(OK); 130 } 131 returnCode(ERR); 132 } 133