1 /* $OpenBSD: lib_ttyflags.c,v 1.6 2023/10/17 09:52:09 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright 2020 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 * def_prog_mode() 34 * def_shell_mode() 35 * reset_prog_mode() 36 * reset_shell_mode() 37 * savetty() 38 * resetty() 39 */ 40 41 #include <curses.priv.h> 42 43 #ifndef CUR 44 #define CUR SP_TERMTYPE 45 #endif 46 47 MODULE_ID("$Id: lib_ttyflags.c,v 1.6 2023/10/17 09:52:09 nicm Exp $") 48 49 NCURSES_EXPORT(int) 50 NCURSES_SP_NAME(_nc_get_tty_mode) (NCURSES_SP_DCLx TTY * buf) 51 { 52 TERMINAL *termp = TerminalOf(SP_PARM); 53 int result = OK; 54 55 if (buf == 0 || termp == 0) { 56 result = ERR; 57 } else { 58 59 #ifdef USE_TERM_DRIVER 60 if (SP_PARM != 0) { 61 result = CallDriver_2(SP_PARM, td_sgmode, FALSE, buf); 62 } else { 63 result = ERR; 64 } 65 #else 66 for (;;) { 67 if (GET_TTY(termp->Filedes, buf) != 0) { 68 if (errno == EINTR) 69 continue; 70 result = ERR; 71 } 72 break; 73 } 74 #endif 75 76 TR(TRACE_BITS, ("_nc_get_tty_mode(%d): %s", 77 termp ? termp->Filedes : -1, 78 _nc_trace_ttymode(buf))); 79 } 80 if (result == ERR && buf != 0) 81 memset(buf, 0, sizeof(*buf)); 82 83 return (result); 84 } 85 86 #if NCURSES_SP_FUNCS 87 NCURSES_EXPORT(int) 88 _nc_get_tty_mode(TTY * buf) 89 { 90 return NCURSES_SP_NAME(_nc_get_tty_mode) (CURRENT_SCREEN, buf); 91 } 92 #endif 93 94 NCURSES_EXPORT(int) 95 NCURSES_SP_NAME(_nc_set_tty_mode) (NCURSES_SP_DCLx TTY * buf) 96 { 97 int result = OK; 98 99 if (buf == 0 || SP_PARM == 0) { 100 result = ERR; 101 } else { 102 TERMINAL *termp = TerminalOf(SP_PARM); 103 104 if (0 == termp) { 105 result = ERR; 106 } else { 107 #ifdef USE_TERM_DRIVER 108 result = CallDriver_2(SP_PARM, td_sgmode, TRUE, buf); 109 #else 110 for (;;) { 111 if ((SET_TTY(termp->Filedes, buf) != 0) 112 #if USE_KLIBC_KBD 113 && !NC_ISATTY(termp->Filedes) 114 #endif 115 ) { 116 if (errno == EINTR) 117 continue; 118 if ((errno == ENOTTY) && (SP_PARM != 0)) 119 SP_PARM->_notty = TRUE; 120 result = ERR; 121 } 122 break; 123 } 124 #endif 125 } 126 TR(TRACE_BITS, ("_nc_set_tty_mode(%d): %s", 127 termp ? termp->Filedes : -1, 128 _nc_trace_ttymode(buf))); 129 } 130 return (result); 131 } 132 133 #if NCURSES_SP_FUNCS 134 NCURSES_EXPORT(int) 135 _nc_set_tty_mode(TTY * buf) 136 { 137 return NCURSES_SP_NAME(_nc_set_tty_mode) (CURRENT_SCREEN, buf); 138 } 139 #endif 140 141 NCURSES_EXPORT(int) 142 NCURSES_SP_NAME(def_shell_mode) (NCURSES_SP_DCL0) 143 { 144 int rc = ERR; 145 TERMINAL *termp = TerminalOf(SP_PARM); 146 147 T((T_CALLED("def_shell_mode(%p) ->term %p"), 148 (void *) SP_PARM, (void *) termp)); 149 150 if (termp != 0) { 151 #ifdef USE_TERM_DRIVER 152 rc = CallDriver_2(SP_PARM, td_mode, FALSE, TRUE); 153 #else 154 /* 155 * If XTABS was on, remove the tab and backtab capabilities. 156 */ 157 if (_nc_get_tty_mode(&termp->Ottyb) == OK) { 158 #ifdef TERMIOS 159 if (termp->Ottyb.c_oflag & OFLAGS_TABS) 160 tab = back_tab = NULL; 161 #elif defined(EXP_WIN32_DRIVER) 162 /* noop */ 163 #else 164 if (termp->Ottyb.sg_flags & XTABS) 165 tab = back_tab = NULL; 166 #endif 167 rc = OK; 168 } 169 #endif 170 } 171 returnCode(rc); 172 } 173 174 #if NCURSES_SP_FUNCS 175 NCURSES_EXPORT(int) 176 def_shell_mode(void) 177 { 178 return NCURSES_SP_NAME(def_shell_mode) (CURRENT_SCREEN); 179 } 180 #endif 181 182 NCURSES_EXPORT(int) 183 NCURSES_SP_NAME(def_prog_mode) (NCURSES_SP_DCL0) 184 { 185 int rc = ERR; 186 TERMINAL *termp = TerminalOf(SP_PARM); 187 188 T((T_CALLED("def_prog_mode(%p) ->term %p"), (void *) SP_PARM, (void *) termp)); 189 190 if (termp != 0) { 191 #ifdef USE_TERM_DRIVER 192 rc = CallDriver_2(SP_PARM, td_mode, TRUE, TRUE); 193 #else 194 /* 195 * Turn off the XTABS bit in the tty structure if it was on. 196 */ 197 if (_nc_get_tty_mode(&termp->Nttyb) == OK) { 198 #ifdef TERMIOS 199 termp->Nttyb.c_oflag &= (unsigned) (~OFLAGS_TABS); 200 #elif defined(EXP_WIN32_DRIVER) 201 /* noop */ 202 #else 203 termp->Nttyb.sg_flags &= (unsigned) (~XTABS); 204 #endif 205 rc = OK; 206 } 207 #endif 208 } 209 returnCode(rc); 210 } 211 212 #if NCURSES_SP_FUNCS 213 NCURSES_EXPORT(int) 214 def_prog_mode(void) 215 { 216 return NCURSES_SP_NAME(def_prog_mode) (CURRENT_SCREEN); 217 } 218 #endif 219 220 NCURSES_EXPORT(int) 221 NCURSES_SP_NAME(reset_prog_mode) (NCURSES_SP_DCL0) 222 { 223 int rc = ERR; 224 TERMINAL *termp = TerminalOf(SP_PARM); 225 226 T((T_CALLED("reset_prog_mode(%p) ->term %p"), (void *) SP_PARM, (void *) termp)); 227 228 if (termp != 0) { 229 #ifdef USE_TERM_DRIVER 230 rc = CallDriver_2(SP_PARM, td_mode, TRUE, FALSE); 231 #else 232 if (_nc_set_tty_mode(&termp->Nttyb) == OK) { 233 if (SP_PARM) { 234 if (SP_PARM->_keypad_on) 235 _nc_keypad(SP_PARM, TRUE); 236 } 237 rc = OK; 238 } 239 #endif 240 } 241 returnCode(rc); 242 } 243 244 #if NCURSES_SP_FUNCS 245 NCURSES_EXPORT(int) 246 reset_prog_mode(void) 247 { 248 return NCURSES_SP_NAME(reset_prog_mode) (CURRENT_SCREEN); 249 } 250 #endif 251 252 NCURSES_EXPORT(int) 253 NCURSES_SP_NAME(reset_shell_mode) (NCURSES_SP_DCL0) 254 { 255 int rc = ERR; 256 TERMINAL *termp = TerminalOf(SP_PARM); 257 258 T((T_CALLED("reset_shell_mode(%p) ->term %p"), 259 (void *) SP_PARM, (void *) termp)); 260 261 if (termp != 0) { 262 #ifdef USE_TERM_DRIVER 263 rc = CallDriver_2(SP_PARM, td_mode, FALSE, FALSE); 264 #else 265 if (SP_PARM) { 266 _nc_keypad(SP_PARM, FALSE); 267 _nc_flush(); 268 } 269 rc = _nc_set_tty_mode(&termp->Ottyb); 270 #endif 271 } 272 returnCode(rc); 273 } 274 275 #if NCURSES_SP_FUNCS 276 NCURSES_EXPORT(int) 277 reset_shell_mode(void) 278 { 279 return NCURSES_SP_NAME(reset_shell_mode) (CURRENT_SCREEN); 280 } 281 #endif 282 283 static TTY * 284 saved_tty(NCURSES_SP_DCL0) 285 { 286 TTY *result = 0; 287 288 if (SP_PARM != 0) { 289 result = (TTY *) & (SP_PARM->_saved_tty); 290 } else { 291 if (_nc_prescreen.saved_tty == 0) { 292 _nc_prescreen.saved_tty = typeCalloc(TTY, 1); 293 } 294 result = _nc_prescreen.saved_tty; 295 } 296 return result; 297 } 298 299 /* 300 ** savetty() and resetty() 301 ** 302 */ 303 304 NCURSES_EXPORT(int) 305 NCURSES_SP_NAME(savetty) (NCURSES_SP_DCL0) 306 { 307 T((T_CALLED("savetty(%p)"), (void *) SP_PARM)); 308 returnCode(NCURSES_SP_NAME(_nc_get_tty_mode) (NCURSES_SP_ARGx saved_tty(NCURSES_SP_ARG))); 309 } 310 311 #if NCURSES_SP_FUNCS 312 NCURSES_EXPORT(int) 313 savetty(void) 314 { 315 return NCURSES_SP_NAME(savetty) (CURRENT_SCREEN); 316 } 317 #endif 318 319 NCURSES_EXPORT(int) 320 NCURSES_SP_NAME(resetty) (NCURSES_SP_DCL0) 321 { 322 T((T_CALLED("resetty(%p)"), (void *) SP_PARM)); 323 returnCode(NCURSES_SP_NAME(_nc_set_tty_mode) (NCURSES_SP_ARGx saved_tty(NCURSES_SP_ARG))); 324 } 325 326 #if NCURSES_SP_FUNCS 327 NCURSES_EXPORT(int) 328 resetty(void) 329 { 330 return NCURSES_SP_NAME(resetty) (CURRENT_SCREEN); 331 } 332 #endif 333