1/* $OpenBSD: lib_cur_term.c,v 1.7 2023/10/17 09:52:09 nicm Exp $ */ 2 3/**************************************************************************** 4,* Copyright 2020-2021,2022 Thomas E. Dickey * 5 * Copyright 1998-2016,2017 Free Software Foundation, Inc. * 6 * * 7 * Permission is hereby granted, free of charge, to any person obtaining a * 8 * copy of this software and associated documentation files (the * 9 * "Software"), to deal in the Software without restriction, including * 10 * without limitation the rights to use, copy, modify, merge, publish, * 11 * distribute, distribute with modifications, sublicense, and/or sell * 12 * copies of the Software, and to permit persons to whom the Software is * 13 * furnished to do so, subject to the following conditions: * 14 * * 15 * The above copyright notice and this permission notice shall be included * 16 * in all copies or substantial portions of the Software. * 17 * * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 25 * * 26 * Except as contained in this notice, the name(s) of the above copyright * 27 * holders shall not be used in advertising or otherwise to promote the * 28 * sale, use or other dealings in this Software without prior written * 29 * authorization. * 30 ****************************************************************************/ 31 32/**************************************************************************** 33 * Author: Thomas E. Dickey <dickey@clark.net> 1997 * 34 ****************************************************************************/ 35/* 36 * Module that "owns" the 'cur_term' variable: 37 * 38 * TERMINAL *set_curterm(TERMINAL *) 39 * int del_curterm(TERMINAL *) 40 */ 41 42#include <curses.priv.h> 43#include <termcap.h> /* ospeed */ 44#include <tic.h> /* VALID_STRING */ 45 46MODULE_ID("$Id: lib_cur_term.c,v 1.7 2023/10/17 09:52:09 nicm Exp $") 47 48#undef CUR 49#define CUR TerminalType(termp). 50 51#if USE_REENTRANT 52 53NCURSES_EXPORT(TERMINAL *) 54NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_DCL0) 55{ 56 return ((0 != TerminalOf(SP_PARM)) ? TerminalOf(SP_PARM) : CurTerm); 57} 58 59#if NCURSES_SP_FUNCS 60 61NCURSES_EXPORT(TERMINAL *) 62_nc_get_cur_term(void) 63{ 64 return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN); 65} 66#endif 67 68NCURSES_EXPORT(TERMINAL *) 69NCURSES_PUBLIC_VAR(cur_term) (void) 70{ 71#if NCURSES_SP_FUNCS 72 return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN); 73#else 74 return NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG); 75#endif 76} 77 78#else 79NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0; 80#endif 81 82NCURSES_EXPORT(TERMINAL *) 83NCURSES_SP_NAME(set_curterm) (NCURSES_SP_DCLx TERMINAL *termp) 84{ 85 TERMINAL *oldterm; 86 87 T((T_CALLED("set_curterm(%p)"), (void *) termp)); 88 89 _nc_lock_global(curses); 90 oldterm = cur_term; 91 if (SP_PARM) 92 SP_PARM->_term = termp; 93#if USE_REENTRANT 94 CurTerm = termp; 95#else 96 cur_term = termp; 97#endif 98 if (termp != 0) { 99#ifdef USE_TERM_DRIVER 100 TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp; 101 ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate); 102 if (TCB->drv && 103 TCB->drv->isTerminfo && 104 TerminalType(termp).Strings) { 105 PC = (char) (VALID_STRING(pad_char) ? pad_char[0] : 0); 106 } 107 TCB->csp = SP_PARM; 108#else 109 ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate); 110 if (TerminalType(termp).Strings) { 111 PC = (char) (VALID_STRING(pad_char) ? pad_char[0] : 0); 112 } 113#endif 114#if !USE_REENTRANT 115 save_ttytype(termp); 116#endif 117 } 118 _nc_unlock_global(curses); 119 120 T((T_RETURN("%p"), (void *) oldterm)); 121 return (oldterm); 122} 123 124#if NCURSES_SP_FUNCS 125NCURSES_EXPORT(TERMINAL *) 126set_curterm(TERMINAL *termp) 127{ 128 return NCURSES_SP_NAME(set_curterm) (CURRENT_SCREEN, termp); 129} 130#endif 131 132NCURSES_EXPORT(int) 133NCURSES_SP_NAME(del_curterm) (NCURSES_SP_DCLx TERMINAL *termp) 134{ 135 int rc = ERR; 136 137 T((T_CALLED("del_curterm(%p, %p)"), (void *) SP_PARM, (void *) termp)); 138 139 if (termp != 0) { 140#ifdef USE_TERM_DRIVER 141 TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp; 142#endif 143 TERMINAL *cur = ( 144#if USE_REENTRANT 145 NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG) 146#else 147 cur_term 148#endif 149 ); 150 151#if NCURSES_EXT_NUMBERS 152#if NCURSES_EXT_COLORS 153 _nc_free_termtype1(&termp->type); 154#else 155 _nc_free_termtype2(&termp->type); 156#endif 157#endif 158 _nc_free_termtype2(&TerminalType(termp)); 159 if (termp == cur) 160 NCURSES_SP_NAME(set_curterm) (NCURSES_SP_ARGx 0); 161 162 FreeIfNeeded(termp->_termname); 163#if USE_HOME_TERMINFO 164 if (_nc_globals.home_terminfo != 0) { 165 FreeAndNull(_nc_globals.home_terminfo); 166 } 167#endif 168#ifdef USE_TERM_DRIVER 169 if (TCB->drv) 170 TCB->drv->td_release(TCB); 171#endif 172#if NO_LEAKS 173 /* discard memory used in tgetent's cache for this terminal */ 174 _nc_tgetent_leak(termp); 175#endif 176 if (--_nc_globals.terminal_count == 0) { 177 _nc_free_tparm(termp); 178 } 179 180 free(termp->tparm_state.fmt_buff); 181 free(termp->tparm_state.out_buff); 182 free(termp); 183 184 rc = OK; 185 } 186 187 returnCode(rc); 188} 189 190#if NCURSES_SP_FUNCS 191NCURSES_EXPORT(int) 192del_curterm(TERMINAL *termp) 193{ 194 int rc; 195 196 _nc_lock_global(curses); 197 rc = NCURSES_SP_NAME(del_curterm) (CURRENT_SCREEN, termp); 198 _nc_unlock_global(curses); 199 200 return (rc); 201} 202#endif 203