| 1 | /* rltty.c -- functions to prepare and restore the terminal for readline's |
| 2 | use. */ |
| 3 | |
| 4 | /* Copyright (C) 1992 Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of the GNU Readline Library, a library for |
| 7 | reading lines of text with interactive input and history editing. |
| 8 | |
| 9 | The GNU Readline Library is free software; you can redistribute it |
| 10 | and/or modify it under the terms of the GNU General Public License |
| 11 | as published by the Free Software Foundation; either version 1, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | The GNU Readline Library is distributed in the hope that it will be |
| 15 | useful, but WITHOUT ANY WARRANTY; without even the implied warranty |
| 16 | of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | The GNU General Public License is often shipped with GNU software, and |
| 20 | is generally kept in a file called COPYING or LICENSE. If you do not |
| 21 | have a copy of the license, write to the Free Software Foundation, |
| 22 | 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 23 | #include "sysdep.h" |
| 24 | #include <signal.h> |
| 25 | #include <errno.h> |
| 26 | #include <stdio.h> |
| 27 | #ifndef NO_SYS_FILE |
| 28 | #include <sys/file.h> |
| 29 | #endif |
| 30 | |
| 31 | #if defined (HAVE_UNISTD_H) |
| 32 | # include <unistd.h> |
| 33 | #endif /* HAVE_UNISTD_H */ |
| 34 | |
| 35 | #include "rldefs.h" |
| 36 | #include "readline.h" |
| 37 | |
| 38 | #if !defined (errno) |
| 39 | extern int errno; |
| 40 | #endif /* !errno */ |
| 41 | |
| 42 | extern int readline_echoing_p; |
| 43 | extern int _rl_eof_char; |
| 44 | |
| 45 | #if defined (__GO32__) |
| 46 | # include <sys/pc.h> |
| 47 | # undef HANDLE_SIGNALS |
| 48 | #endif /* __GO32__ */ |
| 49 | |
| 50 | /* **************************************************************** */ |
| 51 | /* */ |
| 52 | /* Signal Management */ |
| 53 | /* */ |
| 54 | /* **************************************************************** */ |
| 55 | |
| 56 | #if defined (HAVE_POSIX_SIGNALS) |
| 57 | static sigset_t sigint_set, sigint_oset; |
| 58 | #else /* !HAVE_POSIX_SIGNALS */ |
| 59 | # if defined (HAVE_BSD_SIGNALS) |
| 60 | static int sigint_oldmask; |
| 61 | # endif /* HAVE_BSD_SIGNALS */ |
| 62 | #endif /* !HAVE_POSIX_SIGNALS */ |
| 63 | |
| 64 | static int sigint_blocked = 0; |
| 65 | |
| 66 | /* Cause SIGINT to not be delivered until the corresponding call to |
| 67 | release_sigint(). */ |
| 68 | static void |
| 69 | block_sigint () |
| 70 | { |
| 71 | if (sigint_blocked) |
| 72 | return; |
| 73 | |
| 74 | #if defined (HAVE_POSIX_SIGNALS) |
| 75 | sigemptyset (&sigint_set); |
| 76 | sigemptyset (&sigint_oset); |
| 77 | sigaddset (&sigint_set, SIGINT); |
| 78 | sigprocmask (SIG_BLOCK, &sigint_set, &sigint_oset); |
| 79 | #else /* !HAVE_POSIX_SIGNALS */ |
| 80 | # if defined (HAVE_BSD_SIGNALS) |
| 81 | sigint_oldmask = sigblock (sigmask (SIGINT)); |
| 82 | # else /* !HAVE_BSD_SIGNALS */ |
| 83 | # if defined (HAVE_USG_SIGHOLD) |
| 84 | sighold (SIGINT); |
| 85 | # endif /* HAVE_USG_SIGHOLD */ |
| 86 | # endif /* !HAVE_BSD_SIGNALS */ |
| 87 | #endif /* !HAVE_POSIX_SIGNALS */ |
| 88 | sigint_blocked = 1; |
| 89 | } |
| 90 | |
| 91 | /* Allow SIGINT to be delivered. */ |
| 92 | static void |
| 93 | release_sigint () |
| 94 | { |
| 95 | if (!sigint_blocked) |
| 96 | return; |
| 97 | |
| 98 | #if defined (HAVE_POSIX_SIGNALS) |
| 99 | sigprocmask (SIG_SETMASK, &sigint_oset, (sigset_t *)NULL); |
| 100 | #else |
| 101 | # if defined (HAVE_BSD_SIGNALS) |
| 102 | sigsetmask (sigint_oldmask); |
| 103 | # else /* !HAVE_BSD_SIGNALS */ |
| 104 | # if defined (HAVE_USG_SIGHOLD) |
| 105 | sigrelse (SIGINT); |
| 106 | # endif /* HAVE_USG_SIGHOLD */ |
| 107 | # endif /* !HAVE_BSD_SIGNALS */ |
| 108 | #endif /* !HAVE_POSIX_SIGNALS */ |
| 109 | |
| 110 | sigint_blocked = 0; |
| 111 | } |
| 112 | \f |
| 113 | /* **************************************************************** */ |
| 114 | /* */ |
| 115 | /* Controlling the Meta Key */ |
| 116 | /* */ |
| 117 | /* **************************************************************** */ |
| 118 | |
| 119 | extern int term_has_meta; |
| 120 | extern char *term_mm; |
| 121 | extern char *term_mo; |
| 122 | |
| 123 | static void |
| 124 | outchar (c) |
| 125 | int c; |
| 126 | { |
| 127 | putc (c, rl_outstream); |
| 128 | } |
| 129 | |
| 130 | /* Turn on/off the meta key depending on ON. */ |
| 131 | static void |
| 132 | control_meta_key (on) |
| 133 | int on; |
| 134 | { |
| 135 | if (term_has_meta) |
| 136 | { |
| 137 | if (on && term_mm) |
| 138 | tputs (term_mm, 1, outchar); |
| 139 | else if (!on && term_mo) |
| 140 | tputs (term_mo, 1, outchar); |
| 141 | } |
| 142 | } |
| 143 | \f |
| 144 | /* **************************************************************** */ |
| 145 | /* */ |
| 146 | /* Saving and Restoring the TTY */ |
| 147 | /* */ |
| 148 | /* **************************************************************** */ |
| 149 | |
| 150 | /* Non-zero means that the terminal is in a prepped state. */ |
| 151 | static int terminal_prepped = 0; |
| 152 | |
| 153 | /* If non-zero, means that this process has called tcflow(fd, TCOOFF) |
| 154 | and output is suspended. */ |
| 155 | #if defined (__ksr1__) |
| 156 | static int ksrflow = 0; |
| 157 | #endif |
| 158 | #if defined (NEW_TTY_DRIVER) |
| 159 | |
| 160 | /* Values for the `flags' field of a struct bsdtty. This tells which |
| 161 | elements of the struct bsdtty have been fetched from the system and |
| 162 | are valid. */ |
| 163 | #define SGTTY_SET 0x01 |
| 164 | #define LFLAG_SET 0x02 |
| 165 | #define TCHARS_SET 0x04 |
| 166 | #define LTCHARS_SET 0x08 |
| 167 | |
| 168 | struct bsdtty { |
| 169 | struct sgttyb sgttyb; /* Basic BSD tty driver information. */ |
| 170 | int lflag; /* Local mode flags, like LPASS8. */ |
| 171 | #if defined (TIOCGETC) |
| 172 | struct tchars tchars; /* Terminal special characters, including ^S and ^Q. */ |
| 173 | #endif |
| 174 | #if defined (TIOCGLTC) |
| 175 | struct ltchars ltchars; /* 4.2 BSD editing characters */ |
| 176 | #endif |
| 177 | int flags; /* Bitmap saying which parts of the struct are valid. */ |
| 178 | }; |
| 179 | |
| 180 | #define TIOTYPE struct bsdtty |
| 181 | |
| 182 | static TIOTYPE otio; |
| 183 | |
| 184 | static int |
| 185 | get_tty_settings (tty, tiop) |
| 186 | int tty; |
| 187 | TIOTYPE *tiop; |
| 188 | { |
| 189 | tiop->flags = tiop->lflag = 0; |
| 190 | |
| 191 | ioctl (tty, TIOCGETP, &(tiop->sgttyb)); |
| 192 | tiop->flags |= SGTTY_SET; |
| 193 | |
| 194 | #if defined (TIOCLGET) |
| 195 | ioctl (tty, TIOCLGET, &(tiop->lflag)); |
| 196 | tiop->flags |= LFLAG_SET; |
| 197 | #endif |
| 198 | |
| 199 | #if defined (TIOCGETC) |
| 200 | ioctl (tty, TIOCGETC, &(tiop->tchars)); |
| 201 | tiop->flags |= TCHARS_SET; |
| 202 | #endif |
| 203 | |
| 204 | #if defined (TIOCGLTC) |
| 205 | ioctl (tty, TIOCGLTC, &(tiop->ltchars)); |
| 206 | tiop->flags |= LTCHARS_SET; |
| 207 | #endif |
| 208 | |
| 209 | return 0; |
| 210 | } |
| 211 | |
| 212 | set_tty_settings (tty, tiop) |
| 213 | int tty; |
| 214 | TIOTYPE *tiop; |
| 215 | { |
| 216 | if (tiop->flags & SGTTY_SET) |
| 217 | { |
| 218 | ioctl (tty, TIOCSETN, &(tiop->sgttyb)); |
| 219 | tiop->flags &= ~SGTTY_SET; |
| 220 | } |
| 221 | |
| 222 | #if defined (TIOCLSET) |
| 223 | if (tiop->flags & LFLAG_SET) |
| 224 | { |
| 225 | ioctl (tty, TIOCLSET, &(tiop->lflag)); |
| 226 | tiop->flags &= ~LFLAG_SET; |
| 227 | } |
| 228 | #endif |
| 229 | |
| 230 | #if defined (TIOCSETC) |
| 231 | if (tiop->flags & TCHARS_SET) |
| 232 | { |
| 233 | ioctl (tty, TIOCSETC, &(tiop->tchars)); |
| 234 | tiop->flags &= ~TCHARS_SET; |
| 235 | } |
| 236 | #endif |
| 237 | |
| 238 | #if defined (TIOCSLTC) |
| 239 | if (tiop->flags & LTCHARS_SET) |
| 240 | { |
| 241 | ioctl (tty, TIOCSLTC, &(tiop->ltchars)); |
| 242 | tiop->flags &= ~LTCHARS_SET; |
| 243 | } |
| 244 | #endif |
| 245 | |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | static void |
| 250 | prepare_terminal_settings (meta_flag, otio, tiop) |
| 251 | int meta_flag; |
| 252 | TIOTYPE otio, *tiop; |
| 253 | { |
| 254 | #if !defined (__GO32__) |
| 255 | readline_echoing_p = (otio.sgttyb.sg_flags & ECHO); |
| 256 | |
| 257 | /* Copy the original settings to the structure we're going to use for |
| 258 | our settings. */ |
| 259 | tiop->sgttyb = otio.sgttyb; |
| 260 | tiop->lflag = otio.lflag; |
| 261 | #if defined (TIOCGETC) |
| 262 | tiop->tchars = otio.tchars; |
| 263 | #endif |
| 264 | #if defined (TIOCGLTC) |
| 265 | tiop->ltchars = otio.ltchars; |
| 266 | #endif |
| 267 | tiop->flags = otio.flags; |
| 268 | |
| 269 | /* First, the basic settings to put us into character-at-a-time, no-echo |
| 270 | input mode. */ |
| 271 | tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD); |
| 272 | tiop->sgttyb.sg_flags |= CBREAK; |
| 273 | |
| 274 | /* If this terminal doesn't care how the 8th bit is used, then we can |
| 275 | use it for the meta-key. If only one of even or odd parity is |
| 276 | specified, then the terminal is using parity, and we cannot. */ |
| 277 | #if !defined (ANYP) |
| 278 | # define ANYP (EVENP | ODDP) |
| 279 | #endif |
| 280 | if (((otio.sgttyb.sg_flags & ANYP) == ANYP) || |
| 281 | ((otio.sgttyb.sg_flags & ANYP) == 0)) |
| 282 | { |
| 283 | tiop->sgttyb.sg_flags |= ANYP; |
| 284 | |
| 285 | /* Hack on local mode flags if we can. */ |
| 286 | #if defined (TIOCLGET) |
| 287 | # if defined (LPASS8) |
| 288 | tiop->lflag |= LPASS8; |
| 289 | # endif /* LPASS8 */ |
| 290 | #endif /* TIOCLGET */ |
| 291 | } |
| 292 | |
| 293 | #if defined (TIOCGETC) |
| 294 | # if defined (USE_XON_XOFF) |
| 295 | /* Get rid of terminal output start and stop characters. */ |
| 296 | tiop->tchars.t_stopc = -1; /* C-s */ |
| 297 | tiop->tchars.t_startc = -1; /* C-q */ |
| 298 | |
| 299 | /* If there is an XON character, bind it to restart the output. */ |
| 300 | if (otio.tchars.t_startc != -1) |
| 301 | rl_bind_key (otio.tchars.t_startc, rl_restart_output); |
| 302 | # endif /* USE_XON_XOFF */ |
| 303 | |
| 304 | /* If there is an EOF char, bind _rl_eof_char to it. */ |
| 305 | if (otio.tchars.t_eofc != -1) |
| 306 | _rl_eof_char = otio.tchars.t_eofc; |
| 307 | |
| 308 | # if defined (NO_KILL_INTR) |
| 309 | /* Get rid of terminal-generated SIGQUIT and SIGINT. */ |
| 310 | tiop->tchars.t_quitc = -1; /* C-\ */ |
| 311 | tiop->tchars.t_intrc = -1; /* C-c */ |
| 312 | # endif /* NO_KILL_INTR */ |
| 313 | #endif /* TIOCGETC */ |
| 314 | |
| 315 | #if defined (TIOCGLTC) |
| 316 | /* Make the interrupt keys go away. Just enough to make people happy. */ |
| 317 | tiop->ltchars.t_dsuspc = -1; /* C-y */ |
| 318 | tiop->ltchars.t_lnextc = -1; /* C-v */ |
| 319 | #endif /* TIOCGLTC */ |
| 320 | #endif /* !__GO32__ */ |
| 321 | } |
| 322 | #endif /* defined (NEW_TTY_DRIVER) */ |
| 323 | |
| 324 | #if !defined (NEW_TTY_DRIVER) && !defined(__GO32__) |
| 325 | |
| 326 | #if !defined (VMIN) |
| 327 | # define VMIN VEOF |
| 328 | #endif |
| 329 | |
| 330 | #if !defined (VTIME) |
| 331 | # define VTIME VEOL |
| 332 | #endif |
| 333 | |
| 334 | #if defined (TERMIOS_TTY_DRIVER) |
| 335 | # define TIOTYPE struct termios |
| 336 | # define DRAIN_OUTPUT(fd) tcdrain (fd) |
| 337 | # define GETATTR(tty, tiop) (tcgetattr (tty, tiop)) |
| 338 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSANOW, tiop)) |
| 339 | #else |
| 340 | # define TIOTYPE struct termio |
| 341 | # define DRAIN_OUTPUT(fd) |
| 342 | # define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop)) |
| 343 | # define SETATTR(tty, tiop) (ioctl (tty, TCSETA, tiop)) |
| 344 | #endif /* !TERMIOS_TTY_DRIVER */ |
| 345 | |
| 346 | static TIOTYPE otio; |
| 347 | |
| 348 | static int |
| 349 | get_tty_settings (tty, tiop) |
| 350 | int tty; |
| 351 | TIOTYPE *tiop; |
| 352 | { |
| 353 | while (GETATTR (tty, tiop) < 0) |
| 354 | { |
| 355 | if (errno != EINTR) |
| 356 | return -1; |
| 357 | errno = 0; |
| 358 | } |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | static int |
| 363 | set_tty_settings (tty, tiop) |
| 364 | int tty; |
| 365 | TIOTYPE *tiop; |
| 366 | { |
| 367 | while (SETATTR (tty, tiop) < 0) |
| 368 | { |
| 369 | if (errno != EINTR) |
| 370 | return -1; |
| 371 | errno = 0; |
| 372 | } |
| 373 | |
| 374 | #if 0 |
| 375 | |
| 376 | #if defined (TERMIOS_TTY_DRIVER) |
| 377 | # if defined (__ksr1__) |
| 378 | if (ksrflow) |
| 379 | { |
| 380 | ksrflow = 0; |
| 381 | tcflow (tty, TCOON); |
| 382 | } |
| 383 | # else /* !ksr1 */ |
| 384 | tcflow (tty, TCOON); /* Simulate a ^Q. */ |
| 385 | # endif /* !ksr1 */ |
| 386 | #else |
| 387 | ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */ |
| 388 | #endif /* !TERMIOS_TTY_DRIVER */ |
| 389 | |
| 390 | #endif |
| 391 | |
| 392 | return 0; |
| 393 | } |
| 394 | |
| 395 | static void |
| 396 | prepare_terminal_settings (meta_flag, otio, tiop) |
| 397 | int meta_flag; |
| 398 | TIOTYPE otio, *tiop; |
| 399 | { |
| 400 | readline_echoing_p = (otio.c_lflag & ECHO); |
| 401 | |
| 402 | tiop->c_lflag &= ~(ICANON | ECHO); |
| 403 | |
| 404 | if ((unsigned char) otio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE) |
| 405 | _rl_eof_char = otio.c_cc[VEOF]; |
| 406 | |
| 407 | #if defined (USE_XON_XOFF) |
| 408 | #if defined (IXANY) |
| 409 | tiop->c_iflag &= ~(IXON | IXOFF | IXANY); |
| 410 | #else |
| 411 | /* `strict' Posix systems do not define IXANY. */ |
| 412 | tiop->c_iflag &= ~(IXON | IXOFF); |
| 413 | #endif /* IXANY */ |
| 414 | #endif /* USE_XON_XOFF */ |
| 415 | |
| 416 | /* Only turn this off if we are using all 8 bits. */ |
| 417 | if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag) |
| 418 | tiop->c_iflag &= ~(ISTRIP | INPCK); |
| 419 | |
| 420 | /* Make sure we differentiate between CR and NL on input. */ |
| 421 | tiop->c_iflag &= ~(ICRNL | INLCR); |
| 422 | |
| 423 | #if !defined (HANDLE_SIGNALS) |
| 424 | tiop->c_lflag &= ~ISIG; |
| 425 | #else |
| 426 | tiop->c_lflag |= ISIG; |
| 427 | #endif |
| 428 | |
| 429 | tiop->c_cc[VMIN] = 1; |
| 430 | tiop->c_cc[VTIME] = 0; |
| 431 | |
| 432 | /* Turn off characters that we need on Posix systems with job control, |
| 433 | just to be sure. This includes ^Y and ^V. This should not really |
| 434 | be necessary. */ |
| 435 | #if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE) |
| 436 | |
| 437 | #if defined (VLNEXT) |
| 438 | tiop->c_cc[VLNEXT] = _POSIX_VDISABLE; |
| 439 | #endif |
| 440 | |
| 441 | #if defined (VDSUSP) |
| 442 | tiop->c_cc[VDSUSP] = _POSIX_VDISABLE; |
| 443 | #endif |
| 444 | |
| 445 | #endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */ |
| 446 | } |
| 447 | #endif /* !defined (NEW_TTY_DRIVER) && !defined(__GO32__) */ |
| 448 | |
| 449 | /* Put the terminal in CBREAK mode so that we can detect key presses. */ |
| 450 | void |
| 451 | rl_prep_terminal (meta_flag) |
| 452 | int meta_flag; |
| 453 | { |
| 454 | #if !defined (__GO32__) |
| 455 | int tty = fileno (rl_instream); |
| 456 | TIOTYPE tio; |
| 457 | |
| 458 | if (terminal_prepped) |
| 459 | return; |
| 460 | |
| 461 | /* Try to keep this function from being INTerrupted. */ |
| 462 | block_sigint (); |
| 463 | |
| 464 | if (get_tty_settings (tty, &tio) < 0) |
| 465 | { |
| 466 | release_sigint (); |
| 467 | return; |
| 468 | } |
| 469 | |
| 470 | otio = tio; |
| 471 | |
| 472 | prepare_terminal_settings (meta_flag, otio, &tio); |
| 473 | |
| 474 | if (set_tty_settings (tty, &tio) < 0) |
| 475 | { |
| 476 | release_sigint (); |
| 477 | return; |
| 478 | } |
| 479 | |
| 480 | control_meta_key (1); |
| 481 | terminal_prepped = 1; |
| 482 | |
| 483 | release_sigint (); |
| 484 | #endif /* !__GO32__ */ |
| 485 | } |
| 486 | |
| 487 | /* Restore the terminal's normal settings and modes. */ |
| 488 | void |
| 489 | rl_deprep_terminal () |
| 490 | { |
| 491 | #if !defined (__GO32__) |
| 492 | int tty = fileno (rl_instream); |
| 493 | |
| 494 | if (!terminal_prepped) |
| 495 | return; |
| 496 | |
| 497 | /* Try to keep this function from being INTerrupted. */ |
| 498 | block_sigint (); |
| 499 | |
| 500 | if (set_tty_settings (tty, &otio) < 0) |
| 501 | { |
| 502 | release_sigint (); |
| 503 | return; |
| 504 | } |
| 505 | #ifdef NEW_TTY_DRIVER |
| 506 | readline_echoing_p = 1; |
| 507 | #endif |
| 508 | |
| 509 | control_meta_key (0); |
| 510 | terminal_prepped = 0; |
| 511 | |
| 512 | release_sigint (); |
| 513 | #endif /* !__GO32__ */ |
| 514 | } |
| 515 | \f |
| 516 | /* **************************************************************** */ |
| 517 | /* */ |
| 518 | /* Bogus Flow Control */ |
| 519 | /* */ |
| 520 | /* **************************************************************** */ |
| 521 | |
| 522 | rl_restart_output (count, key) |
| 523 | int count, key; |
| 524 | { |
| 525 | int fildes = fileno (rl_outstream); |
| 526 | #if defined (TIOCSTART) |
| 527 | #if defined (apollo) |
| 528 | ioctl (&fildes, TIOCSTART, 0); |
| 529 | #else |
| 530 | ioctl (fildes, TIOCSTART, 0); |
| 531 | #endif /* apollo */ |
| 532 | |
| 533 | #else /* !TIOCSTART */ |
| 534 | # if defined (TERMIOS_TTY_DRIVER) |
| 535 | # if defined (__ksr1__) |
| 536 | if (ksrflow) |
| 537 | { |
| 538 | ksrflow = 0; |
| 539 | tcflow (fildes, TCOON); |
| 540 | } |
| 541 | # else /* !ksr1 */ |
| 542 | tcflow (fildes, TCOON); /* Simulate a ^Q. */ |
| 543 | # endif /* !ksr1 */ |
| 544 | # else /* !TERMIOS_TTY_DRIVER */ |
| 545 | # if defined (TCXONC) |
| 546 | ioctl (fildes, TCXONC, TCOON); |
| 547 | # endif /* TCXONC */ |
| 548 | # endif /* !TERMIOS_TTY_DRIVER */ |
| 549 | #endif /* !TIOCSTART */ |
| 550 | } |
| 551 | |
| 552 | rl_stop_output (count, key) |
| 553 | int count, key; |
| 554 | { |
| 555 | int fildes = fileno (rl_instream); |
| 556 | |
| 557 | #if defined (TIOCSTOP) |
| 558 | # if defined (apollo) |
| 559 | ioctl (&fildes, TIOCSTOP, 0); |
| 560 | # else |
| 561 | ioctl (fildes, TIOCSTOP, 0); |
| 562 | # endif /* apollo */ |
| 563 | #else /* !TIOCSTOP */ |
| 564 | # if defined (TERMIOS_TTY_DRIVER) |
| 565 | # if defined (__ksr1__) |
| 566 | ksrflow = 1; |
| 567 | # endif /* ksr1 */ |
| 568 | tcflow (fildes, TCOOFF); |
| 569 | # else |
| 570 | # if defined (TCXONC) |
| 571 | ioctl (fildes, TCXONC, TCOON); |
| 572 | # endif /* TCXONC */ |
| 573 | # endif /* !TERMIOS_TTY_DRIVER */ |
| 574 | #endif /* !TIOCSTOP */ |
| 575 | } |
| 576 | \f |
| 577 | /* **************************************************************** */ |
| 578 | /* */ |
| 579 | /* Default Key Bindings */ |
| 580 | /* */ |
| 581 | /* **************************************************************** */ |
| 582 | #if !defined (__GO32__) |
| 583 | void |
| 584 | rltty_set_default_bindings (kmap) |
| 585 | Keymap kmap; |
| 586 | { |
| 587 | TIOTYPE ttybuff; |
| 588 | int tty = fileno (rl_instream); |
| 589 | |
| 590 | #if defined (NEW_TTY_DRIVER) |
| 591 | |
| 592 | if (get_tty_settings (tty, &ttybuff) == 0) |
| 593 | { |
| 594 | if (ttybuff.flags & SGTTY_SET) |
| 595 | { |
| 596 | int erase, kill; |
| 597 | |
| 598 | erase = ttybuff.sgttyb.sg_erase; |
| 599 | kill = ttybuff.sgttyb.sg_kill; |
| 600 | |
| 601 | if (erase != -1 && kmap[erase].type == ISFUNC) |
| 602 | kmap[erase].function = rl_rubout; |
| 603 | |
| 604 | if (kill != -1 && kmap[kill].type == ISFUNC) |
| 605 | kmap[kill].function = rl_unix_line_discard; |
| 606 | } |
| 607 | |
| 608 | # if defined (TIOCGLTC) |
| 609 | |
| 610 | if (ttybuff.flags & LTCHARS_SET) |
| 611 | { |
| 612 | int werase, nextc; |
| 613 | |
| 614 | werase = ttybuff.ltchars.t_werasc; |
| 615 | nextc = ttybuff.ltchars.t_lnextc; |
| 616 | |
| 617 | if (werase != -1 && kmap[werase].type == ISFUNC) |
| 618 | kmap[werase].function = rl_unix_word_rubout; |
| 619 | |
| 620 | if (nextc != -1 && kmap[nextc].type == ISFUNC) |
| 621 | kmap[nextc].function = rl_quoted_insert; |
| 622 | } |
| 623 | } |
| 624 | # endif /* TIOCGLTC */ |
| 625 | |
| 626 | #else /* !NEW_TTY_DRIVER */ |
| 627 | |
| 628 | if (get_tty_settings (tty, &ttybuff) == 0) |
| 629 | { |
| 630 | unsigned char erase, kill; |
| 631 | |
| 632 | erase = ttybuff.c_cc[VERASE]; |
| 633 | kill = ttybuff.c_cc[VKILL]; |
| 634 | |
| 635 | if (erase != (unsigned char)_POSIX_VDISABLE && |
| 636 | kmap[erase].type == ISFUNC) |
| 637 | kmap[erase].function = rl_rubout; |
| 638 | |
| 639 | if (kill != (unsigned char)_POSIX_VDISABLE && |
| 640 | kmap[kill].type == ISFUNC) |
| 641 | kmap[kill].function = rl_unix_line_discard; |
| 642 | |
| 643 | # if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER) |
| 644 | { |
| 645 | unsigned char nextc; |
| 646 | |
| 647 | nextc = ttybuff.c_cc[VLNEXT]; |
| 648 | |
| 649 | if (nextc != (unsigned char)_POSIX_VDISABLE && |
| 650 | kmap[nextc].type == ISFUNC) |
| 651 | kmap[nextc].function = rl_quoted_insert; |
| 652 | } |
| 653 | # endif /* VLNEXT && TERMIOS_TTY_DRIVER */ |
| 654 | |
| 655 | # if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER) |
| 656 | { |
| 657 | unsigned char werase; |
| 658 | |
| 659 | werase = ttybuff.c_cc[VWERASE]; |
| 660 | |
| 661 | if (werase != (unsigned char)_POSIX_VDISABLE && |
| 662 | kmap[werase].type == ISFUNC) |
| 663 | kmap[werase].function = rl_unix_word_rubout; |
| 664 | } |
| 665 | # endif /* VWERASE && TERMIOS_TTY_DRIVER */ |
| 666 | } |
| 667 | #endif /* !NEW_TTY_DRIVER */ |
| 668 | } |
| 669 | #endif /* !__GO32__ */ |