lib/libedit/tty.c

   1 /*-
   2  * Copyright (c) 1992, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Christos Zoulas of Cornell University.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * @(#)tty.c    8.1 (Berkeley) 6/4/93
  33  * $NetBSD: tty.c,v 1.25 2006/03/18 09:09:41 christos Exp $
  34  * $DragonFly: src/lib/libedit/tty.c,v 1.5 2007/05/05 00:27:40 pavalos Exp $
  35  */
  36
  37 #include "config.h"
  38
  39 /*
  40  * tty.c: tty interface stuff
  41  */
  42 #include <assert.h>
  43 #include "tty.h"
  44 #include "el.h"
  45
  46 typedef struct ttymodes_t {
  47         const char *m_name;
  48         unsigned int m_value;
  49         int m_type;
  50 }          ttymodes_t;
  51
  52 typedef struct ttymap_t {
  53         int nch, och;           /* Internal and termio rep of chars */
  54         el_action_t bind[3];    /* emacs, vi, and vi-cmd */
  55 } ttymap_t;
  56
  57
  58 private const ttyperm_t ttyperm = {
  59         {
  60                 {"iflag:", ICRNL, (INLCR | IGNCR)},
  61                 {"oflag:", (OPOST | ONLCR), ONLRET},
  62                 {"cflag:", 0, 0},
  63                 {"lflag:", (ISIG | ICANON | ECHO | ECHOE | ECHOCTL | IEXTEN),
  64                 (NOFLSH | ECHONL | EXTPROC | FLUSHO)},
  65                 {"chars:", 0, 0},
  66         },
  67         {
  68                 {"iflag:", (INLCR | ICRNL), IGNCR},
  69                 {"oflag:", (OPOST | ONLCR), ONLRET},
  70                 {"cflag:", 0, 0},
  71                 {"lflag:", ISIG,
  72                 (NOFLSH | ICANON | ECHO | ECHOK | ECHONL | EXTPROC | IEXTEN | FLUSHO)},
  73                 {"chars:", (C_SH(C_MIN) | C_SH(C_TIME) | C_SH(C_SWTCH) | C_SH(C_DSWTCH) |
  74                             C_SH(C_SUSP) | C_SH(C_DSUSP) | C_SH(C_EOL) | C_SH(C_DISCARD) |
  75                     C_SH(C_PGOFF) | C_SH(C_PAGE) | C_SH(C_STATUS)), 0}
  76         },
  77         {
  78                 {"iflag:", 0, IXON | IXOFF | INLCR | ICRNL},
  79                 {"oflag:", 0, 0},
  80                 {"cflag:", 0, 0},
  81                 {"lflag:", 0, ISIG | IEXTEN},
  82                 {"chars:", 0, 0},
  83         }
  84 };
  85
  86 private const ttychar_t ttychar = {
  87         {
  88                 CINTR, CQUIT, CERASE, CKILL,
  89                 CEOF, CEOL, CEOL2, CSWTCH,
  90                 CDSWTCH, CERASE2, CSTART, CSTOP,
  91                 CWERASE, CSUSP, CDSUSP, CREPRINT,
  92                 CDISCARD, CLNEXT, CSTATUS, CPAGE,
  93                 CPGOFF, CKILL2, CBRK, CMIN,
  94                 CTIME
  95         },
  96         {
  97                 CINTR, CQUIT, CERASE, CKILL,
  98                 _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
  99                 _POSIX_VDISABLE, CERASE2, CSTART, CSTOP,
 100                 _POSIX_VDISABLE, CSUSP, _POSIX_VDISABLE, _POSIX_VDISABLE,
 101                 CDISCARD, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE,
 102                 _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, 1,
 103                 0
 104         },
 105         {
 106                 0, 0, 0, 0,
 107                 0, 0, 0, 0,
 108                 0, 0, 0, 0,
 109                 0, 0, 0, 0,
 110                 0, 0, 0, 0,
 111                 0, 0, 0, 0,
 112                 0
 113         }
 114 };
 115
 116 private const ttymap_t tty_map[] = {
 117 #ifdef VERASE
 118         {C_ERASE, VERASE,
 119         {EM_DELETE_PREV_CHAR, VI_DELETE_PREV_CHAR, ED_PREV_CHAR}},
 120 #endif /* VERASE */
 121 #ifdef VERASE2
 122         {C_ERASE2, VERASE2,
 123         {EM_DELETE_PREV_CHAR, VI_DELETE_PREV_CHAR, ED_PREV_CHAR}},
 124 #endif /* VERASE2 */
 125 #ifdef VKILL
 126         {C_KILL, VKILL,
 127         {EM_KILL_LINE, VI_KILL_LINE_PREV, ED_UNASSIGNED}},
 128 #endif /* VKILL */
 129 #ifdef VKILL2
 130         {C_KILL2, VKILL2,
 131         {EM_KILL_LINE, VI_KILL_LINE_PREV, ED_UNASSIGNED}},
 132 #endif /* VKILL2 */
 133 #ifdef VEOF
 134         {C_EOF, VEOF,
 135         {EM_DELETE_OR_LIST, VI_LIST_OR_EOF, ED_UNASSIGNED}},
 136 #endif /* VEOF */
 137 #ifdef VWERASE
 138         {C_WERASE, VWERASE,
 139         {ED_DELETE_PREV_WORD, ED_DELETE_PREV_WORD, ED_PREV_WORD}},
 140 #endif /* VWERASE */
 141 #ifdef VREPRINT
 142         {C_REPRINT, VREPRINT,
 143         {ED_REDISPLAY, ED_INSERT, ED_REDISPLAY}},
 144 #endif /* VREPRINT */
 145 #ifdef VLNEXT
 146         {C_LNEXT, VLNEXT,
 147         {ED_QUOTED_INSERT, ED_QUOTED_INSERT, ED_UNASSIGNED}},
 148 #endif /* VLNEXT */
 149         {-1, -1,
 150         {ED_UNASSIGNED, ED_UNASSIGNED, ED_UNASSIGNED}}
 151 };
 152
 153 private const ttymodes_t ttymodes[] = {
 154 #ifdef  IGNBRK
 155         {"ignbrk", IGNBRK, MD_INP},
 156 #endif /* IGNBRK */
 157 #ifdef  BRKINT
 158         {"brkint", BRKINT, MD_INP},
 159 #endif /* BRKINT */
 160 #ifdef  IGNPAR
 161         {"ignpar", IGNPAR, MD_INP},
 162 #endif /* IGNPAR */
 163 #ifdef  PARMRK
 164         {"parmrk", PARMRK, MD_INP},
 165 #endif /* PARMRK */
 166 #ifdef  INPCK
 167         {"inpck", INPCK, MD_INP},
 168 #endif /* INPCK */
 169 #ifdef  ISTRIP
 170         {"istrip", ISTRIP, MD_INP},
 171 #endif /* ISTRIP */
 172 #ifdef  INLCR
 173         {"inlcr", INLCR, MD_INP},
 174 #endif /* INLCR */
 175 #ifdef  IGNCR
 176         {"igncr", IGNCR, MD_INP},
 177 #endif /* IGNCR */
 178 #ifdef  ICRNL
 179         {"icrnl", ICRNL, MD_INP},
 180 #endif /* ICRNL */
 181 #ifdef  IUCLC
 182         {"iuclc", IUCLC, MD_INP},
 183 #endif /* IUCLC */
 184 #ifdef  IXON
 185         {"ixon", IXON, MD_INP},
 186 #endif /* IXON */
 187 #ifdef  IXANY
 188         {"ixany", IXANY, MD_INP},
 189 #endif /* IXANY */
 190 #ifdef  IXOFF
 191         {"ixoff", IXOFF, MD_INP},
 192 #endif /* IXOFF */
 193 #ifdef  IMAXBEL
 194         {"imaxbel", IMAXBEL, MD_INP},
 195 #endif /* IMAXBEL */
 196
 197 #ifdef  OPOST
 198         {"opost", OPOST, MD_OUT},
 199 #endif /* OPOST */
 200 #ifdef  OLCUC
 201         {"olcuc", OLCUC, MD_OUT},
 202 #endif /* OLCUC */
 203 #ifdef  ONLCR
 204         {"onlcr", ONLCR, MD_OUT},
 205 #endif /* ONLCR */
 206 #ifdef  OCRNL
 207         {"ocrnl", OCRNL, MD_OUT},
 208 #endif /* OCRNL */
 209 #ifdef  ONOCR
 210         {"onocr", ONOCR, MD_OUT},
 211 #endif /* ONOCR */
 212 #ifdef ONOEOT
 213         {"onoeot", ONOEOT, MD_OUT},
 214 #endif /* ONOEOT */
 215 #ifdef  ONLRET
 216         {"onlret", ONLRET, MD_OUT},
 217 #endif /* ONLRET */
 218 #ifdef  OFILL
 219         {"ofill", OFILL, MD_OUT},
 220 #endif /* OFILL */
 221 #ifdef  OFDEL
 222         {"ofdel", OFDEL, MD_OUT},
 223 #endif /* OFDEL */
 224 #ifdef  NLDLY
 225         {"nldly", NLDLY, MD_OUT},
 226 #endif /* NLDLY */
 227 #ifdef  CRDLY
 228         {"crdly", CRDLY, MD_OUT},
 229 #endif /* CRDLY */
 230 #ifdef  TABDLY
 231         {"tabdly", TABDLY, MD_OUT},
 232 #endif /* TABDLY */
 233 #ifdef  XTABS
 234         {"xtabs", XTABS, MD_OUT},
 235 #endif /* XTABS */
 236 #ifdef  BSDLY
 237         {"bsdly", BSDLY, MD_OUT},
 238 #endif /* BSDLY */
 239 #ifdef  VTDLY
 240         {"vtdly", VTDLY, MD_OUT},
 241 #endif /* VTDLY */
 242 #ifdef  FFDLY
 243         {"ffdly", FFDLY, MD_OUT},
 244 #endif /* FFDLY */
 245 #ifdef  PAGEOUT
 246         {"pageout", PAGEOUT, MD_OUT},
 247 #endif /* PAGEOUT */
 248 #ifdef  WRAP
 249         {"wrap", WRAP, MD_OUT},
 250 #endif /* WRAP */
 251
 252 #ifdef  CIGNORE
 253         {"cignore", CIGNORE, MD_CTL},
 254 #endif /* CBAUD */
 255 #ifdef  CBAUD
 256         {"cbaud", CBAUD, MD_CTL},
 257 #endif /* CBAUD */
 258 #ifdef  CSTOPB
 259         {"cstopb", CSTOPB, MD_CTL},
 260 #endif /* CSTOPB */
 261 #ifdef  CREAD
 262         {"cread", CREAD, MD_CTL},
 263 #endif /* CREAD */
 264 #ifdef  PARENB
 265         {"parenb", PARENB, MD_CTL},
 266 #endif /* PARENB */
 267 #ifdef  PARODD
 268         {"parodd", PARODD, MD_CTL},
 269 #endif /* PARODD */
 270 #ifdef  HUPCL
 271         {"hupcl", HUPCL, MD_CTL},
 272 #endif /* HUPCL */
 273 #ifdef  CLOCAL
 274         {"clocal", CLOCAL, MD_CTL},
 275 #endif /* CLOCAL */
 276 #ifdef  LOBLK
 277         {"loblk", LOBLK, MD_CTL},
 278 #endif /* LOBLK */
 279 #ifdef  CIBAUD
 280         {"cibaud", CIBAUD, MD_CTL},
 281 #endif /* CIBAUD */
 282 #ifdef CRTSCTS
 283 #ifdef CCTS_OFLOW
 284         {"ccts_oflow", CCTS_OFLOW, MD_CTL},
 285 #else
 286         {"crtscts", CRTSCTS, MD_CTL},
 287 #endif /* CCTS_OFLOW */
 288 #endif /* CRTSCTS */
 289 #ifdef CRTS_IFLOW
 290         {"crts_iflow", CRTS_IFLOW, MD_CTL},
 291 #endif /* CRTS_IFLOW */
 292 #ifdef CDTRCTS
 293         {"cdtrcts", CDTRCTS, MD_CTL},
 294 #endif /* CDTRCTS */
 295 #ifdef MDMBUF
 296         {"mdmbuf", MDMBUF, MD_CTL},
 297 #endif /* MDMBUF */
 298 #ifdef RCV1EN
 299         {"rcv1en", RCV1EN, MD_CTL},
 300 #endif /* RCV1EN */
 301 #ifdef XMT1EN
 302         {"xmt1en", XMT1EN, MD_CTL},
 303 #endif /* XMT1EN */
 304
 305 #ifdef  ISIG
 306         {"isig", ISIG, MD_LIN},
 307 #endif /* ISIG */
 308 #ifdef  ICANON
 309         {"icanon", ICANON, MD_LIN},
 310 #endif /* ICANON */
 311 #ifdef  XCASE
 312         {"xcase", XCASE, MD_LIN},
 313 #endif /* XCASE */
 314 #ifdef  ECHO
 315         {"echo", ECHO, MD_LIN},
 316 #endif /* ECHO */
 317 #ifdef  ECHOE
 318         {"echoe", ECHOE, MD_LIN},
 319 #endif /* ECHOE */
 320 #ifdef  ECHOK
 321         {"echok", ECHOK, MD_LIN},
 322 #endif /* ECHOK */
 323 #ifdef  ECHONL
 324         {"echonl", ECHONL, MD_LIN},
 325 #endif /* ECHONL */
 326 #ifdef  NOFLSH
 327         {"noflsh", NOFLSH, MD_LIN},
 328 #endif /* NOFLSH */
 329 #ifdef  TOSTOP
 330         {"tostop", TOSTOP, MD_LIN},
 331 #endif /* TOSTOP */
 332 #ifdef  ECHOCTL
 333         {"echoctl", ECHOCTL, MD_LIN},
 334 #endif /* ECHOCTL */
 335 #ifdef  ECHOPRT
 336         {"echoprt", ECHOPRT, MD_LIN},
 337 #endif /* ECHOPRT */
 338 #ifdef  ECHOKE
 339         {"echoke", ECHOKE, MD_LIN},
 340 #endif /* ECHOKE */
 341 #ifdef  DEFECHO
 342         {"defecho", DEFECHO, MD_LIN},
 343 #endif /* DEFECHO */
 344 #ifdef  FLUSHO
 345         {"flusho", FLUSHO, MD_LIN},
 346 #endif /* FLUSHO */
 347 #ifdef  PENDIN
 348         {"pendin", PENDIN, MD_LIN},
 349 #endif /* PENDIN */
 350 #ifdef  IEXTEN
 351         {"iexten", IEXTEN, MD_LIN},
 352 #endif /* IEXTEN */
 353 #ifdef  NOKERNINFO
 354         {"nokerninfo", NOKERNINFO, MD_LIN},
 355 #endif /* NOKERNINFO */
 356 #ifdef  ALTWERASE
 357         {"altwerase", ALTWERASE, MD_LIN},
 358 #endif /* ALTWERASE */
 359 #ifdef  EXTPROC
 360         {"extproc", EXTPROC, MD_LIN},
 361 #endif /* EXTPROC */
 362
 363 #if defined(VINTR)
 364         {"intr", C_SH(C_INTR), MD_CHAR},
 365 #endif /* VINTR */
 366 #if defined(VQUIT)
 367         {"quit", C_SH(C_QUIT), MD_CHAR},
 368 #endif /* VQUIT */
 369 #if defined(VERASE)
 370         {"erase", C_SH(C_ERASE), MD_CHAR},
 371 #endif /* VERASE */
 372 #if defined(VKILL)
 373         {"kill", C_SH(C_KILL), MD_CHAR},
 374 #endif /* VKILL */
 375 #if defined(VEOF)
 376         {"eof", C_SH(C_EOF), MD_CHAR},
 377 #endif /* VEOF */
 378 #if defined(VEOL)
 379         {"eol", C_SH(C_EOL), MD_CHAR},
 380 #endif /* VEOL */
 381 #if defined(VEOL2)
 382         {"eol2", C_SH(C_EOL2), MD_CHAR},
 383 #endif /* VEOL2 */
 384 #if defined(VSWTCH)
 385         {"swtch", C_SH(C_SWTCH), MD_CHAR},
 386 #endif /* VSWTCH */
 387 #if defined(VDSWTCH)
 388         {"dswtch", C_SH(C_DSWTCH), MD_CHAR},
 389 #endif /* VDSWTCH */
 390 #if defined(VERASE2)
 391         {"erase2", C_SH(C_ERASE2), MD_CHAR},
 392 #endif /* VERASE2 */
 393 #if defined(VSTART)
 394         {"start", C_SH(C_START), MD_CHAR},
 395 #endif /* VSTART */
 396 #if defined(VSTOP)
 397         {"stop", C_SH(C_STOP), MD_CHAR},
 398 #endif /* VSTOP */
 399 #if defined(VWERASE)
 400         {"werase", C_SH(C_WERASE), MD_CHAR},
 401 #endif /* VWERASE */
 402 #if defined(VSUSP)
 403         {"susp", C_SH(C_SUSP), MD_CHAR},
 404 #endif /* VSUSP */
 405 #if defined(VDSUSP)
 406         {"dsusp", C_SH(C_DSUSP), MD_CHAR},
 407 #endif /* VDSUSP */
 408 #if defined(VREPRINT)
 409         {"reprint", C_SH(C_REPRINT), MD_CHAR},
 410 #endif /* VREPRINT */
 411 #if defined(VDISCARD)
 412         {"discard", C_SH(C_DISCARD), MD_CHAR},
 413 #endif /* VDISCARD */
 414 #if defined(VLNEXT)
 415         {"lnext", C_SH(C_LNEXT), MD_CHAR},
 416 #endif /* VLNEXT */
 417 #if defined(VSTATUS)
 418         {"status", C_SH(C_STATUS), MD_CHAR},
 419 #endif /* VSTATUS */
 420 #if defined(VPAGE)
 421         {"page", C_SH(C_PAGE), MD_CHAR},
 422 #endif /* VPAGE */
 423 #if defined(VPGOFF)
 424         {"pgoff", C_SH(C_PGOFF), MD_CHAR},
 425 #endif /* VPGOFF */
 426 #if defined(VKILL2)
 427         {"kill2", C_SH(C_KILL2), MD_CHAR},
 428 #endif /* VKILL2 */
 429 #if defined(VBRK)
 430         {"brk", C_SH(C_BRK), MD_CHAR},
 431 #endif /* VBRK */
 432 #if defined(VMIN)
 433         {"min", C_SH(C_MIN), MD_CHAR},
 434 #endif /* VMIN */
 435 #if defined(VTIME)
 436         {"time", C_SH(C_TIME), MD_CHAR},
 437 #endif /* VTIME */
 438         {NULL, 0, -1},
 439 };
 440
 441
 442
 443 #define tty_getty(el, td)       tcgetattr((el)->el_infd, (td))
 444 #define tty_setty(el, td)       tcsetattr((el)->el_infd, TCSADRAIN, (td))
 445
 446 #define tty__gettabs(td)        ((((td)->c_oflag & TAB3) == TAB3) ? 0 : 1)
 447 #define tty__geteightbit(td)    (((td)->c_cflag & CSIZE) == CS8)
 448 #define tty__cooked_mode(td)    ((td)->c_lflag & ICANON)
 449
 450 private int     tty__getcharindex(int);
 451 private void    tty__getchar(struct termios *, unsigned char *);
 452 private void    tty__setchar(struct termios *, unsigned char *);
 453 private speed_t tty__getspeed(struct termios *);
 454 private int     tty_setup(EditLine *);
 455
 456 #define t_qu    t_ts
 457
 458
 459 /* tty_setup():
 460  *      Get the tty parameters and initialize the editing state
 461  */
 462 private int
 463 tty_setup(EditLine *el)
 464 {
 465         int rst = 1;
 466
 467         if (el->el_flags & EDIT_DISABLED)
 468                 return (0);
 469
 470         if (tty_getty(el, &el->el_tty.t_ed) == -1) {
 471 #ifdef DEBUG_TTY
 472                 (void) fprintf(el->el_errfile,
 473                     "tty_setup: tty_getty: %s\n", strerror(errno));
 474 #endif /* DEBUG_TTY */
 475                 return (-1);
 476         }
 477         el->el_tty.t_ts = el->el_tty.t_ex = el->el_tty.t_ed;
 478
 479         el->el_tty.t_speed = tty__getspeed(&el->el_tty.t_ex);
 480         el->el_tty.t_tabs = tty__gettabs(&el->el_tty.t_ex);
 481         el->el_tty.t_eight = tty__geteightbit(&el->el_tty.t_ex);
 482
 483         el->el_tty.t_ex.c_iflag &= ~el->el_tty.t_t[EX_IO][MD_INP].t_clrmask;
 484         el->el_tty.t_ex.c_iflag |= el->el_tty.t_t[EX_IO][MD_INP].t_setmask;
 485
 486         el->el_tty.t_ex.c_oflag &= ~el->el_tty.t_t[EX_IO][MD_OUT].t_clrmask;
 487         el->el_tty.t_ex.c_oflag |= el->el_tty.t_t[EX_IO][MD_OUT].t_setmask;
 488
 489         el->el_tty.t_ex.c_cflag &= ~el->el_tty.t_t[EX_IO][MD_CTL].t_clrmask;
 490         el->el_tty.t_ex.c_cflag |= el->el_tty.t_t[EX_IO][MD_CTL].t_setmask;
 491
 492         el->el_tty.t_ex.c_lflag &= ~el->el_tty.t_t[EX_IO][MD_LIN].t_clrmask;
 493         el->el_tty.t_ex.c_lflag |= el->el_tty.t_t[EX_IO][MD_LIN].t_setmask;
 494
 495         /*
 496          * Reset the tty chars to reasonable defaults
 497          * If they are disabled, then enable them.
 498          */
 499         if (rst) {
 500                 if (tty__cooked_mode(&el->el_tty.t_ts)) {
 501                         tty__getchar(&el->el_tty.t_ts, el->el_tty.t_c[TS_IO]);
 502                         /*
 503                          * Don't affect CMIN and CTIME for the editor mode
 504                          */
 505                         for (rst = 0; rst < C_NCC - 2; rst++)
 506                                 if (el->el_tty.t_c[TS_IO][rst] !=
 507                                       el->el_tty.t_vdisable
 508                                     && el->el_tty.t_c[ED_IO][rst] !=
 509                                       el->el_tty.t_vdisable)
 510                                         el->el_tty.t_c[ED_IO][rst] =
 511                                             el->el_tty.t_c[TS_IO][rst];
 512                         for (rst = 0; rst < C_NCC; rst++)
 513                                 if (el->el_tty.t_c[TS_IO][rst] !=
 514                                     el->el_tty.t_vdisable)
 515                                         el->el_tty.t_c[EX_IO][rst] =
 516                                             el->el_tty.t_c[TS_IO][rst];
 517                 }
 518                 tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
 519                 if (tty_setty(el, &el->el_tty.t_ex) == -1) {
 520 #ifdef DEBUG_TTY
 521                         (void) fprintf(el->el_errfile,
 522                             "tty_setup: tty_setty: %s\n",
 523                             strerror(errno));
 524 #endif /* DEBUG_TTY */
 525                         return (-1);
 526                 }
 527         }
 528 #ifdef notdef
 529         else
 530                 tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
 531 #endif
 532
 533         el->el_tty.t_ed.c_iflag &= ~el->el_tty.t_t[ED_IO][MD_INP].t_clrmask;
 534         el->el_tty.t_ed.c_iflag |= el->el_tty.t_t[ED_IO][MD_INP].t_setmask;
 535
 536         el->el_tty.t_ed.c_oflag &= ~el->el_tty.t_t[ED_IO][MD_OUT].t_clrmask;
 537         el->el_tty.t_ed.c_oflag |= el->el_tty.t_t[ED_IO][MD_OUT].t_setmask;
 538
 539         el->el_tty.t_ed.c_cflag &= ~el->el_tty.t_t[ED_IO][MD_CTL].t_clrmask;
 540         el->el_tty.t_ed.c_cflag |= el->el_tty.t_t[ED_IO][MD_CTL].t_setmask;
 541
 542         el->el_tty.t_ed.c_lflag &= ~el->el_tty.t_t[ED_IO][MD_LIN].t_clrmask;
 543         el->el_tty.t_ed.c_lflag |= el->el_tty.t_t[ED_IO][MD_LIN].t_setmask;
 544
 545         tty__setchar(&el->el_tty.t_ed, el->el_tty.t_c[ED_IO]);
 546         tty_bind_char(el, 1);
 547         return (0);
 548 }
 549
 550 protected int
 551 tty_init(EditLine *el)
 552 {
 553
 554         el->el_tty.t_mode = EX_IO;
 555         el->el_tty.t_vdisable = _POSIX_VDISABLE;
 556         (void) memcpy(el->el_tty.t_t, ttyperm, sizeof(ttyperm_t));
 557         (void) memcpy(el->el_tty.t_c, ttychar, sizeof(ttychar_t));
 558         return (tty_setup(el));
 559 }
 560
 561
 562 /* tty_end():
 563  *      Restore the tty to its original settings
 564  */
 565 protected void
 566 /*ARGSUSED*/
 567 tty_end(EditLine *el __attribute__((__unused__)))
 568 {
 569
 570         /* XXX: Maybe reset to an initial state? */
 571 }
 572
 573
 574 /* tty__getspeed():
 575  *      Get the tty speed
 576  */
 577 private speed_t
 578 tty__getspeed(struct termios *td)
 579 {
 580         speed_t spd;
 581
 582         if ((spd = cfgetispeed(td)) == 0)
 583                 spd = cfgetospeed(td);
 584         return (spd);
 585 }
 586
 587 /* tty__getspeed():
 588  *      Return the index of the asked char in the c_cc array
 589  */
 590 private int
 591 tty__getcharindex(int i)
 592 {
 593         switch (i) {
 594 #ifdef VINTR
 595         case C_INTR:
 596                 return VINTR;
 597 #endif /* VINTR */
 598 #ifdef VQUIT
 599         case C_QUIT:
 600                 return VQUIT;
 601 #endif /* VQUIT */
 602 #ifdef VERASE
 603         case C_ERASE:
 604                 return VERASE;
 605 #endif /* VERASE */
 606 #ifdef VKILL
 607         case C_KILL:
 608                 return VKILL;
 609 #endif /* VKILL */
 610 #ifdef VEOF
 611         case C_EOF:
 612                 return VEOF;
 613 #endif /* VEOF */
 614 #ifdef VEOL
 615         case C_EOL:
 616                 return VEOL;
 617 #endif /* VEOL */
 618 #ifdef VEOL2
 619         case C_EOL2:
 620                 return VEOL2;
 621 #endif /* VEOL2 */
 622 #ifdef VSWTCH
 623         case C_SWTCH:
 624                 return VSWTCH;
 625 #endif /* VSWTCH */
 626 #ifdef VDSWTCH
 627         case C_DSWTCH:
 628                 return VDSWTCH;
 629 #endif /* VDSWTCH */
 630 #ifdef VERASE2
 631         case C_ERASE2:
 632                 return VERASE2;
 633 #endif /* VERASE2 */
 634 #ifdef VSTART
 635         case C_START:
 636                 return VSTART;
 637 #endif /* VSTART */
 638 #ifdef VSTOP
 639         case C_STOP:
 640                 return VSTOP;
 641 #endif /* VSTOP */
 642 #ifdef VWERASE
 643         case C_WERASE:
 644                 return VWERASE;
 645 #endif /* VWERASE */
 646 #ifdef VSUSP
 647         case C_SUSP:
 648                 return VSUSP;
 649 #endif /* VSUSP */
 650 #ifdef VDSUSP
 651         case C_DSUSP:
 652                 return VDSUSP;
 653 #endif /* VDSUSP */
 654 #ifdef VREPRINT
 655         case C_REPRINT:
 656                 return VREPRINT;
 657 #endif /* VREPRINT */
 658 #ifdef VDISCARD
 659         case C_DISCARD:
 660                 return VDISCARD;
 661 #endif /* VDISCARD */
 662 #ifdef VLNEXT
 663         case C_LNEXT:
 664                 return VLNEXT;
 665 #endif /* VLNEXT */
 666 #ifdef VSTATUS
 667         case C_STATUS:
 668                 return VSTATUS;
 669 #endif /* VSTATUS */
 670 #ifdef VPAGE
 671         case C_PAGE:
 672                 return VPAGE;
 673 #endif /* VPAGE */
 674 #ifdef VPGOFF
 675         case C_PGOFF:
 676                 return VPGOFF;
 677 #endif /* VPGOFF */
 678 #ifdef VKILL2
 679         case C_KILL2:
 680                 return VKILL2;
 681 #endif /* KILL2 */
 682 #ifdef VMIN
 683         case C_MIN:
 684                 return VMIN;
 685 #endif /* VMIN */
 686 #ifdef VTIME
 687         case C_TIME:
 688                 return VTIME;
 689 #endif /* VTIME */
 690         default:
 691                 return -1;
 692         }
 693 }
 694
 695 /* tty__getchar():
 696  *      Get the tty characters
 697  */
 698 private void
 699 tty__getchar(struct termios *td, unsigned char *s)
 700 {
 701
 702 #ifdef VINTR
 703         s[C_INTR] = td->c_cc[VINTR];
 704 #endif /* VINTR */
 705 #ifdef VQUIT
 706         s[C_QUIT] = td->c_cc[VQUIT];
 707 #endif /* VQUIT */
 708 #ifdef VERASE
 709         s[C_ERASE] = td->c_cc[VERASE];
 710 #endif /* VERASE */
 711 #ifdef VKILL
 712         s[C_KILL] = td->c_cc[VKILL];
 713 #endif /* VKILL */
 714 #ifdef VEOF
 715         s[C_EOF] = td->c_cc[VEOF];
 716 #endif /* VEOF */
 717 #ifdef VEOL
 718         s[C_EOL] = td->c_cc[VEOL];
 719 #endif /* VEOL */
 720 #ifdef VEOL2
 721         s[C_EOL2] = td->c_cc[VEOL2];
 722 #endif /* VEOL2 */
 723 #ifdef VSWTCH
 724         s[C_SWTCH] = td->c_cc[VSWTCH];
 725 #endif /* VSWTCH */
 726 #ifdef VDSWTCH
 727         s[C_DSWTCH] = td->c_cc[VDSWTCH];
 728 #endif /* VDSWTCH */
 729 #ifdef VERASE2
 730         s[C_ERASE2] = td->c_cc[VERASE2];
 731 #endif /* VERASE2 */
 732 #ifdef VSTART
 733         s[C_START] = td->c_cc[VSTART];
 734 #endif /* VSTART */
 735 #ifdef VSTOP
 736         s[C_STOP] = td->c_cc[VSTOP];
 737 #endif /* VSTOP */
 738 #ifdef VWERASE
 739         s[C_WERASE] = td->c_cc[VWERASE];
 740 #endif /* VWERASE */
 741 #ifdef VSUSP
 742         s[C_SUSP] = td->c_cc[VSUSP];
 743 #endif /* VSUSP */
 744 #ifdef VDSUSP
 745         s[C_DSUSP] = td->c_cc[VDSUSP];
 746 #endif /* VDSUSP */
 747 #ifdef VREPRINT
 748         s[C_REPRINT] = td->c_cc[VREPRINT];
 749 #endif /* VREPRINT */
 750 #ifdef VDISCARD
 751         s[C_DISCARD] = td->c_cc[VDISCARD];
 752 #endif /* VDISCARD */
 753 #ifdef VLNEXT
 754         s[C_LNEXT] = td->c_cc[VLNEXT];
 755 #endif /* VLNEXT */
 756 #ifdef VSTATUS
 757         s[C_STATUS] = td->c_cc[VSTATUS];
 758 #endif /* VSTATUS */
 759 #ifdef VPAGE
 760         s[C_PAGE] = td->c_cc[VPAGE];
 761 #endif /* VPAGE */
 762 #ifdef VPGOFF
 763         s[C_PGOFF] = td->c_cc[VPGOFF];
 764 #endif /* VPGOFF */
 765 #ifdef VKILL2
 766         s[C_KILL2] = td->c_cc[VKILL2];
 767 #endif /* KILL2 */
 768 #ifdef VMIN
 769         s[C_MIN] = td->c_cc[VMIN];
 770 #endif /* VMIN */
 771 #ifdef VTIME
 772         s[C_TIME] = td->c_cc[VTIME];
 773 #endif /* VTIME */
 774 }                               /* tty__getchar */
 775
 776
 777 /* tty__setchar():
 778  *      Set the tty characters
 779  */
 780 private void
 781 tty__setchar(struct termios *td, unsigned char *s)
 782 {
 783
 784 #ifdef VINTR
 785         td->c_cc[VINTR] = s[C_INTR];
 786 #endif /* VINTR */
 787 #ifdef VQUIT
 788         td->c_cc[VQUIT] = s[C_QUIT];
 789 #endif /* VQUIT */
 790 #ifdef VERASE
 791         td->c_cc[VERASE] = s[C_ERASE];
 792 #endif /* VERASE */
 793 #ifdef VKILL
 794         td->c_cc[VKILL] = s[C_KILL];
 795 #endif /* VKILL */
 796 #ifdef VEOF
 797         td->c_cc[VEOF] = s[C_EOF];
 798 #endif /* VEOF */
 799 #ifdef VEOL
 800         td->c_cc[VEOL] = s[C_EOL];
 801 #endif /* VEOL */
 802 #ifdef VEOL2
 803         td->c_cc[VEOL2] = s[C_EOL2];
 804 #endif /* VEOL2 */
 805 #ifdef VSWTCH
 806         td->c_cc[VSWTCH] = s[C_SWTCH];
 807 #endif /* VSWTCH */
 808 #ifdef VDSWTCH
 809         td->c_cc[VDSWTCH] = s[C_DSWTCH];
 810 #endif /* VDSWTCH */
 811 #ifdef VERASE2
 812         td->c_cc[VERASE2] = s[C_ERASE2];
 813 #endif /* VERASE2 */
 814 #ifdef VSTART
 815         td->c_cc[VSTART] = s[C_START];
 816 #endif /* VSTART */
 817 #ifdef VSTOP
 818         td->c_cc[VSTOP] = s[C_STOP];
 819 #endif /* VSTOP */
 820 #ifdef VWERASE
 821         td->c_cc[VWERASE] = s[C_WERASE];
 822 #endif /* VWERASE */
 823 #ifdef VSUSP
 824         td->c_cc[VSUSP] = s[C_SUSP];
 825 #endif /* VSUSP */
 826 #ifdef VDSUSP
 827         td->c_cc[VDSUSP] = s[C_DSUSP];
 828 #endif /* VDSUSP */
 829 #ifdef VREPRINT
 830         td->c_cc[VREPRINT] = s[C_REPRINT];
 831 #endif /* VREPRINT */
 832 #ifdef VDISCARD
 833         td->c_cc[VDISCARD] = s[C_DISCARD];
 834 #endif /* VDISCARD */
 835 #ifdef VLNEXT
 836         td->c_cc[VLNEXT] = s[C_LNEXT];
 837 #endif /* VLNEXT */
 838 #ifdef VSTATUS
 839         td->c_cc[VSTATUS] = s[C_STATUS];
 840 #endif /* VSTATUS */
 841 #ifdef VPAGE
 842         td->c_cc[VPAGE] = s[C_PAGE];
 843 #endif /* VPAGE */
 844 #ifdef VPGOFF
 845         td->c_cc[VPGOFF] = s[C_PGOFF];
 846 #endif /* VPGOFF */
 847 #ifdef VKILL2
 848         td->c_cc[VKILL2] = s[C_KILL2];
 849 #endif /* VKILL2 */
 850 #ifdef VMIN
 851         td->c_cc[VMIN] = s[C_MIN];
 852 #endif /* VMIN */
 853 #ifdef VTIME
 854         td->c_cc[VTIME] = s[C_TIME];
 855 #endif /* VTIME */
 856 }                               /* tty__setchar */
 857
 858
 859 /* tty_bind_char():
 860  *      Rebind the editline functions
 861  */
 862 protected void
 863 tty_bind_char(EditLine *el, int force)
 864 {
 865
 866         unsigned char *t_n = el->el_tty.t_c[ED_IO];
 867         unsigned char *t_o = el->el_tty.t_ed.c_cc;
 868         unsigned char new[2], old[2];
 869         const ttymap_t *tp;
 870         el_action_t *map, *alt;
 871         const el_action_t *dmap, *dalt;
 872         new[1] = old[1] = '\0';
 873
 874         map = el->el_map.key;
 875         alt = el->el_map.alt;
 876         if (el->el_map.type == MAP_VI) {
 877                 dmap = el->el_map.vii;
 878                 dalt = el->el_map.vic;
 879         } else {
 880                 dmap = el->el_map.emacs;
 881                 dalt = NULL;
 882         }
 883
 884         for (tp = tty_map; tp->nch != -1; tp++) {
 885                 new[0] = t_n[tp->nch];
 886                 old[0] = t_o[tp->och];
 887                 if (new[0] == old[0] && !force)
 888                         continue;
 889                 /* Put the old default binding back, and set the new binding */
 890                 key_clear(el, map, (char *)old);
 891                 map[old[0]] = dmap[old[0]];
 892                 key_clear(el, map, (char *)new);
 893                 /* MAP_VI == 1, MAP_EMACS == 0... */
 894                 map[new[0]] = tp->bind[el->el_map.type];
 895                 if (dalt) {
 896                         key_clear(el, alt, (char *)old);
 897                         alt[old[0]] = dalt[old[0]];
 898                         key_clear(el, alt, (char *)new);
 899                         alt[new[0]] = tp->bind[el->el_map.type + 1];
 900                 }
 901         }
 902 }
 903
 904
 905 /* tty_rawmode():
 906  *      Set terminal into 1 character at a time mode.
 907  */
 908 protected int
 909 tty_rawmode(EditLine *el)
 910 {
 911
 912         if (el->el_tty.t_mode == ED_IO || el->el_tty.t_mode == QU_IO)
 913                 return (0);
 914
 915         if (el->el_flags & EDIT_DISABLED)
 916                 return (0);
 917
 918         if (tty_getty(el, &el->el_tty.t_ts) == -1) {
 919 #ifdef DEBUG_TTY
 920                 (void) fprintf(el->el_errfile, "tty_rawmode: tty_getty: %s\n",
 921                     strerror(errno));
 922 #endif /* DEBUG_TTY */
 923                 return (-1);
 924         }
 925         /*
 926          * We always keep up with the eight bit setting and the speed of the
 927          * tty. But only we only believe changes that are made to cooked mode!
 928          */
 929         el->el_tty.t_eight = tty__geteightbit(&el->el_tty.t_ts);
 930         el->el_tty.t_speed = tty__getspeed(&el->el_tty.t_ts);
 931
 932         if (tty__getspeed(&el->el_tty.t_ex) != el->el_tty.t_speed ||
 933             tty__getspeed(&el->el_tty.t_ed) != el->el_tty.t_speed) {
 934                 (void) cfsetispeed(&el->el_tty.t_ex, el->el_tty.t_speed);
 935                 (void) cfsetospeed(&el->el_tty.t_ex, el->el_tty.t_speed);
 936                 (void) cfsetispeed(&el->el_tty.t_ed, el->el_tty.t_speed);
 937                 (void) cfsetospeed(&el->el_tty.t_ed, el->el_tty.t_speed);
 938         }
 939         if (tty__cooked_mode(&el->el_tty.t_ts)) {
 940                 if (el->el_tty.t_ts.c_cflag != el->el_tty.t_ex.c_cflag) {
 941                         el->el_tty.t_ex.c_cflag =
 942                             el->el_tty.t_ts.c_cflag;
 943                         el->el_tty.t_ex.c_cflag &=
 944                             ~el->el_tty.t_t[EX_IO][MD_CTL].t_clrmask;
 945                         el->el_tty.t_ex.c_cflag |=
 946                             el->el_tty.t_t[EX_IO][MD_CTL].t_setmask;
 947
 948                         el->el_tty.t_ed.c_cflag =
 949                             el->el_tty.t_ts.c_cflag;
 950                         el->el_tty.t_ed.c_cflag &=
 951                             ~el->el_tty.t_t[ED_IO][MD_CTL].t_clrmask;
 952                         el->el_tty.t_ed.c_cflag |=
 953                             el->el_tty.t_t[ED_IO][MD_CTL].t_setmask;
 954                 }
 955                 if ((el->el_tty.t_ts.c_lflag != el->el_tty.t_ex.c_lflag) &&
 956                     (el->el_tty.t_ts.c_lflag != el->el_tty.t_ed.c_lflag)) {
 957                         el->el_tty.t_ex.c_lflag =
 958                             el->el_tty.t_ts.c_lflag;
 959                         el->el_tty.t_ex.c_lflag &=
 960                             ~el->el_tty.t_t[EX_IO][MD_LIN].t_clrmask;
 961                         el->el_tty.t_ex.c_lflag |=
 962                             el->el_tty.t_t[EX_IO][MD_LIN].t_setmask;
 963
 964                         el->el_tty.t_ed.c_lflag =
 965                             el->el_tty.t_ts.c_lflag;
 966                         el->el_tty.t_ed.c_lflag &=
 967                             ~el->el_tty.t_t[ED_IO][MD_LIN].t_clrmask;
 968                         el->el_tty.t_ed.c_lflag |=
 969                             el->el_tty.t_t[ED_IO][MD_LIN].t_setmask;
 970                 }
 971                 if ((el->el_tty.t_ts.c_iflag != el->el_tty.t_ex.c_iflag) &&
 972                     (el->el_tty.t_ts.c_iflag != el->el_tty.t_ed.c_iflag)) {
 973                         el->el_tty.t_ex.c_iflag =
 974                             el->el_tty.t_ts.c_iflag;
 975                         el->el_tty.t_ex.c_iflag &=
 976                             ~el->el_tty.t_t[EX_IO][MD_INP].t_clrmask;
 977                         el->el_tty.t_ex.c_iflag |=
 978                             el->el_tty.t_t[EX_IO][MD_INP].t_setmask;
 979
 980                         el->el_tty.t_ed.c_iflag =
 981                             el->el_tty.t_ts.c_iflag;
 982                         el->el_tty.t_ed.c_iflag &=
 983                             ~el->el_tty.t_t[ED_IO][MD_INP].t_clrmask;
 984                         el->el_tty.t_ed.c_iflag |=
 985                             el->el_tty.t_t[ED_IO][MD_INP].t_setmask;
 986                 }
 987                 if ((el->el_tty.t_ts.c_oflag != el->el_tty.t_ex.c_oflag) &&
 988                     (el->el_tty.t_ts.c_oflag != el->el_tty.t_ed.c_oflag)) {
 989                         el->el_tty.t_ex.c_oflag =
 990                             el->el_tty.t_ts.c_oflag;
 991                         el->el_tty.t_ex.c_oflag &=
 992                             ~el->el_tty.t_t[EX_IO][MD_OUT].t_clrmask;
 993                         el->el_tty.t_ex.c_oflag |=
 994                             el->el_tty.t_t[EX_IO][MD_OUT].t_setmask;
 995
 996                         el->el_tty.t_ed.c_oflag =
 997                             el->el_tty.t_ts.c_oflag;
 998                         el->el_tty.t_ed.c_oflag &=
 999                             ~el->el_tty.t_t[ED_IO][MD_OUT].t_clrmask;
1000                         el->el_tty.t_ed.c_oflag |=
1001                             el->el_tty.t_t[ED_IO][MD_OUT].t_setmask;
1002                 }
1003                 if (tty__gettabs(&el->el_tty.t_ex) == 0)
1004                         el->el_tty.t_tabs = 0;
1005                 else
1006                         el->el_tty.t_tabs = EL_CAN_TAB ? 1 : 0;
1007
1008                 {
1009                         int i;
1010
1011                         tty__getchar(&el->el_tty.t_ts, el->el_tty.t_c[TS_IO]);
1012                         /*
1013                          * Check if the user made any changes.
1014                          * If he did, then propagate the changes to the
1015                          * edit and execute data structures.
1016                          */
1017                         for (i = 0; i < C_NCC; i++)
1018                                 if (el->el_tty.t_c[TS_IO][i] !=
1019                                     el->el_tty.t_c[EX_IO][i])
1020                                         break;
1021
1022                         if (i != C_NCC) {
1023                                 /*
1024                                  * Propagate changes only to the unprotected
1025                                  * chars that have been modified just now.
1026                                  */
1027                                 for (i = 0; i < C_NCC; i++) {
1028                                         if (!((el->el_tty.t_t[ED_IO][MD_CHAR].t_setmask & C_SH(i)))
1029                                             && (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i]))
1030                                                 el->el_tty.t_c[ED_IO][i] = el->el_tty.t_c[TS_IO][i];
1031                                         if (el->el_tty.t_t[ED_IO][MD_CHAR].t_clrmask & C_SH(i))
1032                                                 el->el_tty.t_c[ED_IO][i] = el->el_tty.t_vdisable;
1033                                 }
1034                                 tty_bind_char(el, 0);
1035                                 tty__setchar(&el->el_tty.t_ed, el->el_tty.t_c[ED_IO]);
1036
1037                                 for (i = 0; i < C_NCC; i++) {
1038                                         if (!((el->el_tty.t_t[EX_IO][MD_CHAR].t_setmask & C_SH(i)))
1039                                             && (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i]))
1040                                                 el->el_tty.t_c[EX_IO][i] = el->el_tty.t_c[TS_IO][i];
1041                                         if (el->el_tty.t_t[EX_IO][MD_CHAR].t_clrmask & C_SH(i))
1042                                                 el->el_tty.t_c[EX_IO][i] = el->el_tty.t_vdisable;
1043                                 }
1044                                 tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
1045                         }
1046                 }
1047         }
1048         if (tty_setty(el, &el->el_tty.t_ed) == -1) {
1049 #ifdef DEBUG_TTY
1050                 (void) fprintf(el->el_errfile, "tty_rawmode: tty_setty: %s\n",
1051                     strerror(errno));
1052 #endif /* DEBUG_TTY */
1053                 return (-1);
1054         }
1055         el->el_tty.t_mode = ED_IO;
1056         return (0);
1057 }
1058
1059
1060 /* tty_cookedmode():
1061  *      Set the tty back to normal mode
1062  */
1063 protected int
1064 tty_cookedmode(EditLine *el)
1065 {                               /* set tty in normal setup */
1066
1067         if (el->el_tty.t_mode == EX_IO)
1068                 return (0);
1069
1070         if (el->el_flags & EDIT_DISABLED)
1071                 return (0);
1072
1073         if (tty_setty(el, &el->el_tty.t_ex) == -1) {
1074 #ifdef DEBUG_TTY
1075                 (void) fprintf(el->el_errfile,
1076                     "tty_cookedmode: tty_setty: %s\n",
1077                     strerror(errno));
1078 #endif /* DEBUG_TTY */
1079                 return (-1);
1080         }
1081         el->el_tty.t_mode = EX_IO;
1082         return (0);
1083 }
1084
1085
1086 /* tty_quotemode():
1087  *      Turn on quote mode
1088  */
1089 protected int
1090 tty_quotemode(EditLine *el)
1091 {
1092         if (el->el_tty.t_mode == QU_IO)
1093                 return (0);
1094
1095         el->el_tty.t_qu = el->el_tty.t_ed;
1096
1097         el->el_tty.t_qu.c_iflag &= ~el->el_tty.t_t[QU_IO][MD_INP].t_clrmask;
1098         el->el_tty.t_qu.c_iflag |= el->el_tty.t_t[QU_IO][MD_INP].t_setmask;
1099
1100         el->el_tty.t_qu.c_oflag &= ~el->el_tty.t_t[QU_IO][MD_OUT].t_clrmask;
1101         el->el_tty.t_qu.c_oflag |= el->el_tty.t_t[QU_IO][MD_OUT].t_setmask;
1102
1103         el->el_tty.t_qu.c_cflag &= ~el->el_tty.t_t[QU_IO][MD_CTL].t_clrmask;
1104         el->el_tty.t_qu.c_cflag |= el->el_tty.t_t[QU_IO][MD_CTL].t_setmask;
1105
1106         el->el_tty.t_qu.c_lflag &= ~el->el_tty.t_t[QU_IO][MD_LIN].t_clrmask;
1107         el->el_tty.t_qu.c_lflag |= el->el_tty.t_t[QU_IO][MD_LIN].t_setmask;
1108
1109         if (tty_setty(el, &el->el_tty.t_qu) == -1) {
1110 #ifdef DEBUG_TTY
1111                 (void) fprintf(el->el_errfile, "QuoteModeOn: tty_setty: %s\n",
1112                     strerror(errno));
1113 #endif /* DEBUG_TTY */
1114                 return (-1);
1115         }
1116         el->el_tty.t_mode = QU_IO;
1117         return (0);
1118 }
1119
1120
1121 /* tty_noquotemode():
1122  *      Turn off quote mode
1123  */
1124 protected int
1125 tty_noquotemode(EditLine *el)
1126 {
1127
1128         if (el->el_tty.t_mode != QU_IO)
1129                 return (0);
1130         if (tty_setty(el, &el->el_tty.t_ed) == -1) {
1131 #ifdef DEBUG_TTY
1132                 (void) fprintf(el->el_errfile, "QuoteModeOff: tty_setty: %s\n",
1133                     strerror(errno));
1134 #endif /* DEBUG_TTY */
1135                 return (-1);
1136         }
1137         el->el_tty.t_mode = ED_IO;
1138         return (0);
1139 }
1140
1141
1142 /* tty_stty():
1143  *      Stty builtin
1144  */
1145 protected int
1146 /*ARGSUSED*/
1147 tty_stty(EditLine *el, int argc __attribute__((__unused__)), const char **argv)
1148 {
1149         const ttymodes_t *m;
1150         char x;
1151         int aflag = 0;
1152         const char *s, *d;
1153         const char *name;
1154         struct termios *tios = &el->el_tty.t_ex;
1155         int z = EX_IO;
1156
1157         if (argv == NULL)
1158                 return (-1);
1159         name = *argv++;
1160
1161         while (argv && *argv && argv[0][0] == '-' && argv[0][2] == '\0')
1162                 switch (argv[0][1]) {
1163                 case 'a':
1164                         aflag++;
1165                         argv++;
1166                         break;
1167                 case 'd':
1168                         argv++;
1169                         tios = &el->el_tty.t_ed;
1170                         z = ED_IO;
1171                         break;
1172                 case 'x':
1173                         argv++;
1174                         tios = &el->el_tty.t_ex;
1175                         z = EX_IO;
1176                         break;
1177                 case 'q':
1178                         argv++;
1179                         tios = &el->el_tty.t_ts;
1180                         z = QU_IO;
1181                         break;
1182                 default:
1183                         (void) fprintf(el->el_errfile,
1184                             "%s: Unknown switch `%c'.\n",
1185                             name, argv[0][1]);
1186                         return (-1);
1187                 }
1188
1189         if (!argv || !*argv) {
1190                 int i = -1;
1191                 int len = 0, st = 0, cu;
1192                 for (m = ttymodes; m->m_name; m++) {
1193                         if (m->m_type != i) {
1194                                 (void) fprintf(el->el_outfile, "%s%s",
1195                                     i != -1 ? "\n" : "",
1196                                     el->el_tty.t_t[z][m->m_type].t_name);
1197                                 i = m->m_type;
1198                                 st = len =
1199                                     strlen(el->el_tty.t_t[z][m->m_type].t_name);
1200                         }
1201                         if (i != -1) {
1202                             x = (el->el_tty.t_t[z][i].t_setmask & m->m_value)
1203                                 ?  '+' : '\0';
1204                             x = (el->el_tty.t_t[z][i].t_clrmask & m->m_value)
1205                                 ? '-' : x;
1206                         } else {
1207                             x = '\0';
1208                         }
1209
1210                         if (x != '\0' || aflag) {
1211
1212                                 cu = strlen(m->m_name) + (x != '\0') + 1;
1213
1214                                 if (len + cu >= el->el_term.t_size.h) {
1215                                         (void) fprintf(el->el_outfile, "\n%*s",
1216                                             st, "");
1217                                         len = st + cu;
1218                                 } else
1219                                         len += cu;
1220
1221                                 if (x != '\0')
1222                                         (void) fprintf(el->el_outfile, "%c%s ",
1223                                             x, m->m_name);
1224                                 else
1225                                         (void) fprintf(el->el_outfile, "%s ",
1226                                             m->m_name);
1227                         }
1228                 }
1229                 (void) fprintf(el->el_outfile, "\n");
1230                 return (0);
1231         }
1232         while (argv && (s = *argv++)) {
1233                 const char *p;
1234                 switch (*s) {
1235                 case '+':
1236                 case '-':
1237                         x = *s++;
1238                         break;
1239                 default:
1240                         x = '\0';
1241                         break;
1242                 }
1243                 d = s;
1244                 p = strchr(s, '=');
1245                 for (m = ttymodes; m->m_name; m++)
1246                         if ((p ? strncmp(m->m_name, d, (size_t)(p - d)) :
1247                             strcmp(m->m_name, d)) == 0 &&
1248                             (p == NULL || m->m_type == MD_CHAR))
1249                                 break;
1250
1251                 if (!m->m_name) {
1252                         (void) fprintf(el->el_errfile,
1253                             "%s: Invalid argument `%s'.\n", name, d);
1254                         return (-1);
1255                 }
1256                 if (p) {
1257                         int c = ffs((int)m->m_value);
1258                         int v = *++p ? parse__escape((const char **) &p) :
1259                             el->el_tty.t_vdisable;
1260                         assert(c-- != 0);
1261                         c = tty__getcharindex(c);
1262                         assert(c != -1);
1263                         tios->c_cc[c] = v;
1264                         continue;
1265                 }
1266                 switch (x) {
1267                 case '+':
1268                         el->el_tty.t_t[z][m->m_type].t_setmask |= m->m_value;
1269                         el->el_tty.t_t[z][m->m_type].t_clrmask &= ~m->m_value;
1270                         break;
1271                 case '-':
1272                         el->el_tty.t_t[z][m->m_type].t_setmask &= ~m->m_value;
1273                         el->el_tty.t_t[z][m->m_type].t_clrmask |= m->m_value;
1274                         break;
1275                 default:
1276                         el->el_tty.t_t[z][m->m_type].t_setmask &= ~m->m_value;
1277                         el->el_tty.t_t[z][m->m_type].t_clrmask &= ~m->m_value;
1278                         break;
1279                 }
1280         }
1281         return (0);
1282 }
1283
1284
1285 #ifdef notyet
1286 /* tty_printchar():
1287  *      DEbugging routine to print the tty characters
1288  */
1289 private void
1290 tty_printchar(EditLine *el, unsigned char *s)
1291 {
1292         ttyperm_t *m;
1293         int i;
1294
1295         for (i = 0; i < C_NCC; i++) {
1296                 for (m = el->el_tty.t_t; m->m_name; m++)
1297                         if (m->m_type == MD_CHAR && C_SH(i) == m->m_value)
1298                                 break;
1299                 if (m->m_name)
1300                         (void) fprintf(el->el_errfile, "%s ^%c ",
1301                             m->m_name, s[i] + 'A' - 1);
1302                 if (i % 5 == 0)
1303                         (void) fprintf(el->el_errfile, "\n");
1304         }
1305         (void) fprintf(el->el_errfile, "\n");
1306 }
1307 #endif /* notyet */