release/src/router/libncurses/ncurses/tinfo/tinfo_driver.c

   1 /****************************************************************************
   2  * Copyright (c) 2008-2014,2015 Free Software Foundation, Inc.              *
   3  *                                                                          *
   4  * Permission is hereby granted, free of charge, to any person obtaining a  *
   5  * copy of this software and associated documentation files (the            *
   6  * "Software"), to deal in the Software without restriction, including      *
   7  * without limitation the rights to use, copy, modify, merge, publish,      *
   8  * distribute, distribute with modifications, sublicense, and/or sell       *
   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22  *                                                                          *
  23  * Except as contained in this notice, the name(s) of the above copyright   *
  24  * holders shall not be used in advertising or otherwise to promote the     *
  25  * sale, use or other dealings in this Software without prior written       *
  26  * authorization.                                                           *
  27  ****************************************************************************/
  28
  29 /****************************************************************************
  30  *  Author: Juergen Pfeifer                                                 *
  31  *                                                                          *
  32  ****************************************************************************/
  33
  34 #include <curses.priv.h>
  35 #define CUR ((TERMINAL*)TCB)->type.
  36 #include <tic.h>
  37
  38 #if HAVE_NANOSLEEP
  39 #include <time.h>
  40 #if HAVE_SYS_TIME_H
  41 #include <sys/time.h>           /* needed for MacOS X DP3 */
  42 #endif
  43 #endif
  44
  45 #if HAVE_SIZECHANGE
  46 # if !defined(sun) || !TERMIOS
  47 #  if HAVE_SYS_IOCTL_H
  48 #   include <sys/ioctl.h>
  49 #  endif
  50 # endif
  51 #endif
  52
  53 MODULE_ID("$Id: tinfo_driver.c,v 1.40 2015/06/27 01:20:41 tom Exp $")
  54
  55 /*
  56  * SCO defines TIOCGSIZE and the corresponding struct.  Other systems (SunOS,
  57  * Solaris, IRIX) define TIOCGWINSZ and struct winsize.
  58  */
  59 #ifdef TIOCGSIZE
  60 # define IOCTL_WINSIZE TIOCGSIZE
  61 # define STRUCT_WINSIZE struct ttysize
  62 # define WINSIZE_ROWS(n) (int)n.ts_lines
  63 # define WINSIZE_COLS(n) (int)n.ts_cols
  64 #else
  65 # ifdef TIOCGWINSZ
  66 #  define IOCTL_WINSIZE TIOCGWINSZ
  67 #  define STRUCT_WINSIZE struct winsize
  68 #  define WINSIZE_ROWS(n) (int)n.ws_row
  69 #  define WINSIZE_COLS(n) (int)n.ws_col
  70 # endif
  71 #endif
  72
  73 /*
  74  * These should be screen structure members.  They need to be globals for
  75  * historical reasons.  So we assign them in start_color() and also in
  76  * set_term()'s screen-switching logic.
  77  */
  78 #if USE_REENTRANT
  79 NCURSES_EXPORT(int)
  80 NCURSES_PUBLIC_VAR(COLOR_PAIRS) (void)
  81 {
  82     return CURRENT_SCREEN ? CURRENT_SCREEN->_pair_count : -1;
  83 }
  84 NCURSES_EXPORT(int)
  85 NCURSES_PUBLIC_VAR(COLORS) (void)
  86 {
  87     return CURRENT_SCREEN ? CURRENT_SCREEN->_color_count : -1;
  88 }
  89 #else
  90 NCURSES_EXPORT_VAR(int) COLOR_PAIRS = 0;
  91 NCURSES_EXPORT_VAR(int) COLORS = 0;
  92 #endif
  93
  94 #define TCBMAGIC NCDRV_MAGIC(NCDRV_TINFO)
  95 #define AssertTCB() assert(TCB!=0 && TCB->magic==TCBMAGIC)
  96 #define SetSP() assert(TCB->csp!=0); sp = TCB->csp; (void) sp
  97
  98 /*
  99  * This routine needs to do all the work to make curscr look
 100  * like newscr.
 101  */
 102 static int
 103 drv_doupdate(TERMINAL_CONTROL_BLOCK * TCB)
 104 {
 105     AssertTCB();
 106     return TINFO_DOUPDATE(TCB->csp);
 107 }
 108
 109 static const char *
 110 drv_Name(TERMINAL_CONTROL_BLOCK * TCB)
 111 {
 112     (void) TCB;
 113     return "tinfo";
 114 }
 115
 116 #undef SETUP_FAIL
 117 #define SETUP_FAIL FALSE
 118
 119 static bool
 120 drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
 121 {
 122     bool result = FALSE;
 123     int status;
 124     TERMINAL *termp;
 125     SCREEN *sp;
 126
 127     START_TRACE();
 128     T((T_CALLED("tinfo::drv_CanHandle(%p)"), TCB));
 129
 130     assert(TCB != 0 && tname != 0);
 131     termp = (TERMINAL *) TCB;
 132     sp = TCB->csp;
 133     TCB->magic = TCBMAGIC;
 134
 135 #if (NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP)
 136     status = _nc_setup_tinfo(tname, &termp->type);
 137 #else
 138     status = TGETENT_NO;
 139 #endif
 140
 141     /* try fallback list if entry on disk */
 142     if (status != TGETENT_YES) {
 143         const TERMTYPE *fallback = _nc_fallback(tname);
 144
 145         if (fallback) {
 146             termp->type = *fallback;
 147             status = TGETENT_YES;
 148         }
 149     }
 150
 151     if (status != TGETENT_YES) {
 152         NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx termp);
 153         if (status == TGETENT_ERR) {
 154             ret_error0(status, "terminals database is inaccessible\n");
 155         } else if (status == TGETENT_NO) {
 156             ret_error1(status, "unknown terminal type.\n", tname);
 157         }
 158     }
 159     result = TRUE;
 160 #if !USE_REENTRANT
 161     strncpy(ttytype, termp->type.term_names, (size_t) NAMESIZE - 1);
 162     ttytype[NAMESIZE - 1] = '\0';
 163 #endif
 164
 165     if (command_character)
 166         _nc_tinfo_cmdch(termp, *command_character);
 167
 168     if (generic_type) {
 169         /*
 170          * BSD 4.3's termcap contains mis-typed "gn" for wy99.  Do a sanity
 171          * check before giving up.
 172          */
 173         if ((VALID_STRING(cursor_address)
 174              || (VALID_STRING(cursor_down) && VALID_STRING(cursor_home)))
 175             && VALID_STRING(clear_screen)) {
 176             ret_error1(TGETENT_YES, "terminal is not really generic.\n", tname);
 177         } else {
 178             ret_error1(TGETENT_NO, "I need something more specific.\n", tname);
 179         }
 180     }
 181     if (hard_copy) {
 182         ret_error1(TGETENT_YES, "I can't handle hardcopy terminals.\n", tname);
 183     }
 184
 185     returnBool(result);
 186 }
 187
 188 static int
 189 drv_dobeepflash(TERMINAL_CONTROL_BLOCK * TCB, int beepFlag)
 190 {
 191     SCREEN *sp;
 192     int res = ERR;
 193
 194     AssertTCB();
 195     SetSP();
 196
 197     /* FIXME: should make sure that we are not in altchar mode */
 198     if (beepFlag) {
 199         if (bell) {
 200             res = NCURSES_PUTP2("bell", bell);
 201             NCURSES_SP_NAME(_nc_flush) (sp);
 202         } else if (flash_screen) {
 203             res = NCURSES_PUTP2("flash_screen", flash_screen);
 204             NCURSES_SP_NAME(_nc_flush) (sp);
 205         }
 206     } else {
 207         if (flash_screen) {
 208             res = NCURSES_PUTP2("flash_screen", flash_screen);
 209             NCURSES_SP_NAME(_nc_flush) (sp);
 210         } else if (bell) {
 211             res = NCURSES_PUTP2("bell", bell);
 212             NCURSES_SP_NAME(_nc_flush) (sp);
 213         }
 214     }
 215     return res;
 216 }
 217
 218 /*
 219  * SVr4 curses is known to interchange color codes (1,4) and (3,6), possibly
 220  * to maintain compatibility with a pre-ANSI scheme.  The same scheme is
 221  * also used in the FreeBSD syscons.
 222  */
 223 static int
 224 toggled_colors(int c)
 225 {
 226     if (c < 16) {
 227         static const int table[] =
 228         {0, 4, 2, 6, 1, 5, 3, 7,
 229          8, 12, 10, 14, 9, 13, 11, 15};
 230         c = table[c];
 231     }
 232     return c;
 233 }
 234
 235 static int
 236 drv_print(TERMINAL_CONTROL_BLOCK * TCB, char *data, int len)
 237 {
 238     SCREEN *sp;
 239
 240     AssertTCB();
 241     SetSP();
 242 #if NCURSES_EXT_FUNCS
 243     return NCURSES_SP_NAME(mcprint) (TCB->csp, data, len);
 244 #else
 245     return ERR;
 246 #endif
 247 }
 248
 249 static int
 250 drv_defaultcolors(TERMINAL_CONTROL_BLOCK * TCB, int fg, int bg)
 251 {
 252     SCREEN *sp;
 253     int code = ERR;
 254
 255     AssertTCB();
 256     SetSP();
 257
 258     if (sp != 0 && orig_pair && orig_colors && (initialize_pair != 0)) {
 259 #if NCURSES_EXT_FUNCS
 260         sp->_default_color = isDefaultColor(fg) || isDefaultColor(bg);
 261         sp->_has_sgr_39_49 = (NCURSES_SP_NAME(tigetflag) (NCURSES_SP_ARGx
 262                                                           "AX")
 263                               == TRUE);
 264         sp->_default_fg = isDefaultColor(fg) ? COLOR_DEFAULT : (fg & C_MASK);
 265         sp->_default_bg = isDefaultColor(bg) ? COLOR_DEFAULT : (bg & C_MASK);
 266         if (sp->_color_pairs != 0) {
 267             bool save = sp->_default_color;
 268             sp->_default_color = TRUE;
 269             NCURSES_SP_NAME(init_pair) (NCURSES_SP_ARGx
 270                                         0,
 271                                         (short)fg,
 272                                         (short)bg);
 273             sp->_default_color = save;
 274         }
 275 #endif
 276         code = OK;
 277     }
 278     return (code);
 279 }
 280
 281 static void
 282 drv_setcolor(TERMINAL_CONTROL_BLOCK * TCB,
 283              int fore,
 284              int color,
 285              NCURSES_SP_OUTC outc)
 286 {
 287     SCREEN *sp;
 288
 289     AssertTCB();
 290     SetSP();
 291
 292     if (fore) {
 293         if (set_a_foreground) {
 294             TPUTS_TRACE("set_a_foreground");
 295             NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
 296                                     TPARM_1(set_a_foreground, color), 1, outc);
 297         } else {
 298             TPUTS_TRACE("set_foreground");
 299             NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
 300                                     TPARM_1(set_foreground,
 301                                             toggled_colors(color)), 1, outc);
 302         }
 303     } else {
 304         if (set_a_background) {
 305             TPUTS_TRACE("set_a_background");
 306             NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
 307                                     TPARM_1(set_a_background, color), 1, outc);
 308         } else {
 309             TPUTS_TRACE("set_background");
 310             NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
 311                                     TPARM_1(set_background,
 312                                             toggled_colors(color)), 1, outc);
 313         }
 314     }
 315 }
 316
 317 static bool
 318 drv_rescol(TERMINAL_CONTROL_BLOCK * TCB)
 319 {
 320     bool result = FALSE;
 321     SCREEN *sp;
 322
 323     AssertTCB();
 324     SetSP();
 325
 326     if (orig_pair != 0) {
 327         NCURSES_PUTP2("orig_pair", orig_pair);
 328         result = TRUE;
 329     }
 330     return result;
 331 }
 332
 333 static bool
 334 drv_rescolors(TERMINAL_CONTROL_BLOCK * TCB)
 335 {
 336     int result = FALSE;
 337     SCREEN *sp;
 338
 339     AssertTCB();
 340     SetSP();
 341
 342     if (orig_colors != 0) {
 343         NCURSES_PUTP2("orig_colors", orig_colors);
 344         result = TRUE;
 345     }
 346     return result;
 347 }
 348
 349 static int
 350 drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *linep, int *colp)
 351 {
 352     SCREEN *sp;
 353     bool useEnv = TRUE;
 354     bool useTioctl = TRUE;
 355
 356     AssertTCB();
 357     sp = TCB->csp;              /* can be null here */
 358
 359     if (sp) {
 360         useEnv = sp->_use_env;
 361         useTioctl = sp->_use_tioctl;
 362     } else {
 363         useEnv = _nc_prescreen.use_env;
 364         useTioctl = _nc_prescreen.use_tioctl;
 365     }
 366
 367     /* figure out the size of the screen */
 368     T(("screen size: terminfo lines = %d columns = %d", lines, columns));
 369
 370     *linep = (int) lines;
 371     *colp = (int) columns;
 372
 373     if (useEnv || useTioctl) {
 374         int value;
 375
 376 #ifdef __EMX__
 377         {
 378             int screendata[2];
 379             _scrsize(screendata);
 380             *colp = screendata[0];
 381             *linep = ((sp != 0 && sp->_filtered)
 382                       ? 1
 383                       : screendata[1]);
 384             T(("EMX screen size: environment LINES = %d COLUMNS = %d",
 385                *linep, *colp));
 386         }
 387 #endif
 388 #if HAVE_SIZECHANGE
 389         /* try asking the OS */
 390         {
 391             TERMINAL *termp = (TERMINAL *) TCB;
 392             if (NC_ISATTY(termp->Filedes)) {
 393                 STRUCT_WINSIZE size;
 394
 395                 errno = 0;
 396                 do {
 397                     if (ioctl(termp->Filedes, IOCTL_WINSIZE, &size) >= 0) {
 398                         *linep = ((sp != 0 && sp->_filtered)
 399                                   ? 1
 400                                   : WINSIZE_ROWS(size));
 401                         *colp = WINSIZE_COLS(size);
 402                         T(("SYS screen size: environment LINES = %d COLUMNS = %d",
 403                            *linep, *colp));
 404                         break;
 405                     }
 406                 } while
 407                     (errno == EINTR);
 408             }
 409         }
 410 #endif /* HAVE_SIZECHANGE */
 411
 412         if (useEnv) {
 413             if (useTioctl) {
 414                 /*
 415                  * If environment variables are used, update them.
 416                  */
 417                 if ((sp == 0 || !sp->_filtered) && _nc_getenv_num("LINES") > 0) {
 418                     _nc_setenv_num("LINES", *linep);
 419                 }
 420                 if (_nc_getenv_num("COLUMNS") > 0) {
 421                     _nc_setenv_num("COLUMNS", *colp);
 422                 }
 423             }
 424
 425             /*
 426              * Finally, look for environment variables.
 427              *
 428              * Solaris lets users override either dimension with an environment
 429              * variable.
 430              */
 431             if ((value = _nc_getenv_num("LINES")) > 0) {
 432                 *linep = value;
 433                 T(("screen size: environment LINES = %d", *linep));
 434             }
 435             if ((value = _nc_getenv_num("COLUMNS")) > 0) {
 436                 *colp = value;
 437                 T(("screen size: environment COLUMNS = %d", *colp));
 438             }
 439         }
 440
 441         /* if we can't get dynamic info about the size, use static */
 442         if (*linep <= 0) {
 443             *linep = (int) lines;
 444         }
 445         if (*colp <= 0) {
 446             *colp = (int) columns;
 447         }
 448
 449         /* the ultimate fallback, assume fixed 24x80 size */
 450         if (*linep <= 0) {
 451             *linep = 24;
 452         }
 453         if (*colp <= 0) {
 454             *colp = 80;
 455         }
 456
 457         /*
 458          * Put the derived values back in the screen-size caps, so
 459          * tigetnum() and tgetnum() will do the right thing.
 460          */
 461         lines = (short) (*linep);
 462         columns = (short) (*colp);
 463     }
 464
 465     T(("screen size is %dx%d", *linep, *colp));
 466     return OK;
 467 }
 468
 469 static int
 470 drv_getsize(TERMINAL_CONTROL_BLOCK * TCB, int *l, int *c)
 471 {
 472     AssertTCB();
 473     assert(l != 0 && c != 0);
 474     *l = lines;
 475     *c = columns;
 476     return OK;
 477 }
 478
 479 static int
 480 drv_setsize(TERMINAL_CONTROL_BLOCK * TCB, int l, int c)
 481 {
 482     AssertTCB();
 483     lines = (short) l;
 484     columns = (short) c;
 485     return OK;
 486 }
 487
 488 static int
 489 drv_sgmode(TERMINAL_CONTROL_BLOCK * TCB, int setFlag, TTY * buf)
 490 {
 491     SCREEN *sp = TCB->csp;
 492     TERMINAL *_term = (TERMINAL *) TCB;
 493     int result = OK;
 494
 495     AssertTCB();
 496     if (setFlag) {
 497         for (;;) {
 498             if (SET_TTY(_term->Filedes, buf) != 0) {
 499                 if (errno == EINTR)
 500                     continue;
 501                 if (errno == ENOTTY) {
 502                     if (sp)
 503                         sp->_notty = TRUE;
 504                 }
 505                 result = ERR;
 506             }
 507             break;
 508         }
 509     } else {
 510         for (;;) {
 511             if (GET_TTY(_term->Filedes, buf) != 0) {
 512                 if (errno == EINTR)
 513                     continue;
 514                 result = ERR;
 515             }
 516             break;
 517         }
 518     }
 519     return result;
 520 }
 521
 522 static int
 523 drv_mode(TERMINAL_CONTROL_BLOCK * TCB, int progFlag, int defFlag)
 524 {
 525     SCREEN *sp;
 526     TERMINAL *_term = (TERMINAL *) TCB;
 527     int code = ERR;
 528
 529     AssertTCB();
 530     sp = TCB->csp;
 531
 532     if (progFlag)               /* prog mode */
 533     {
 534         if (defFlag) {
 535             /* def_prog_mode */
 536             /*
 537              * Turn off the XTABS bit in the tty structure if it was on.
 538              */
 539             if ((drv_sgmode(TCB, FALSE, &(_term->Nttyb)) == OK)) {
 540 #ifdef TERMIOS
 541                 _term->Nttyb.c_oflag &= (unsigned) ~OFLAGS_TABS;
 542 #else
 543                 _term->Nttyb.sg_flags &= (unsigned) ~XTABS;
 544 #endif
 545                 code = OK;
 546             }
 547         } else {
 548             /* reset_prog_mode */
 549             if (drv_sgmode(TCB, TRUE, &(_term->Nttyb)) == OK) {
 550                 if (sp) {
 551                     if (sp->_keypad_on)
 552                         _nc_keypad(sp, TRUE);
 553                 }
 554                 code = OK;
 555             }
 556         }
 557     } else {                    /* shell mode */
 558         if (defFlag) {
 559             /* def_shell_mode */
 560             /*
 561              * If XTABS was on, remove the tab and backtab capabilities.
 562              */
 563             if (drv_sgmode(TCB, FALSE, &(_term->Ottyb)) == OK) {
 564 #ifdef TERMIOS
 565                 if (_term->Ottyb.c_oflag & OFLAGS_TABS)
 566                     tab = back_tab = NULL;
 567 #else
 568                 if (_term->Ottyb.sg_flags & XTABS)
 569                     tab = back_tab = NULL;
 570 #endif
 571                 code = OK;
 572             }
 573         } else {
 574             /* reset_shell_mode */
 575             if (sp) {
 576                 _nc_keypad(sp, FALSE);
 577                 NCURSES_SP_NAME(_nc_flush) (sp);
 578             }
 579             code = drv_sgmode(TCB, TRUE, &(_term->Ottyb));
 580         }
 581     }
 582     return (code);
 583 }
 584
 585 static void
 586 drv_wrap(SCREEN *sp)
 587 {
 588     if (sp) {
 589         sp->_mouse_wrap(sp);
 590         NCURSES_SP_NAME(_nc_screen_wrap) (sp);
 591         NCURSES_SP_NAME(_nc_mvcur_wrap) (sp);   /* wrap up cursor addressing */
 592     }
 593 }
 594
 595 static void
 596 drv_release(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED)
 597 {
 598 }
 599
 600 #  define SGR0_TEST(mode) (mode != 0) && (exit_attribute_mode == 0 || strcmp(mode, exit_attribute_mode))
 601
 602 static void
 603 drv_screen_init(SCREEN *sp)
 604 {
 605     TERMINAL_CONTROL_BLOCK *TCB = TCBOf(sp);
 606
 607     AssertTCB();
 608
 609     /*
 610      * Check for mismatched graphic-rendition capabilities.  Most SVr4
 611      * terminfo trees contain entries that have rmul or rmso equated to
 612      * sgr0 (Solaris curses copes with those entries).  We do this only
 613      * for curses, since many termcap applications assume that
 614      * smso/rmso and smul/rmul are paired, and will not function
 615      * properly if we remove rmso or rmul.  Curses applications
 616      * shouldn't be looking at this detail.
 617      */
 618     sp->_use_rmso = SGR0_TEST(exit_standout_mode);
 619     sp->_use_rmul = SGR0_TEST(exit_underline_mode);
 620
 621     /*
 622      * Check whether we can optimize scrolling under dumb terminals in
 623      * case we do not have any of these capabilities, scrolling
 624      * optimization will be useless.
 625      */
 626     sp->_scrolling = ((scroll_forward && scroll_reverse) ||
 627                       ((parm_rindex ||
 628                         parm_insert_line ||
 629                         insert_line) &&
 630                        (parm_index ||
 631                         parm_delete_line ||
 632                         delete_line)));
 633
 634     NCURSES_SP_NAME(baudrate) (sp);
 635
 636     NCURSES_SP_NAME(_nc_mvcur_init) (sp);
 637     /* initialize terminal to a sane state */
 638     NCURSES_SP_NAME(_nc_screen_init) (sp);
 639 }
 640
 641 static void
 642 drv_init(TERMINAL_CONTROL_BLOCK * TCB)
 643 {
 644     TERMINAL *trm;
 645
 646     AssertTCB();
 647
 648     trm = (TERMINAL *) TCB;
 649
 650     TCB->info.initcolor = VALID_STRING(initialize_color);
 651     TCB->info.canchange = can_change;
 652     TCB->info.hascolor = ((VALID_NUMERIC(max_colors) && VALID_NUMERIC(max_pairs)
 653                            && (((set_foreground != NULL)
 654                                 && (set_background != NULL))
 655                                || ((set_a_foreground != NULL)
 656                                    && (set_a_background != NULL))
 657                                || set_color_pair)) ? TRUE : FALSE);
 658
 659     TCB->info.caninit = !(exit_ca_mode && non_rev_rmcup);
 660
 661     TCB->info.maxpairs = VALID_NUMERIC(max_pairs) ? max_pairs : 0;
 662     TCB->info.maxcolors = VALID_NUMERIC(max_colors) ? max_colors : 0;
 663     TCB->info.numlabels = VALID_NUMERIC(num_labels) ? num_labels : 0;
 664     TCB->info.labelwidth = VALID_NUMERIC(label_width) ? label_width : 0;
 665     TCB->info.labelheight = VALID_NUMERIC(label_height) ? label_height : 0;
 666     TCB->info.nocolorvideo = VALID_NUMERIC(no_color_video) ? no_color_video
 667         : 0;
 668     TCB->info.tabsize = VALID_NUMERIC(init_tabs) ? (int) init_tabs : 8;
 669
 670     TCB->info.defaultPalette = hue_lightness_saturation ? _nc_hls_palette : _nc_cga_palette;
 671
 672     /*
 673      * If an application calls setupterm() rather than initscr() or
 674      * newterm(), we will not have the def_prog_mode() call in
 675      * _nc_setupscreen().  Do it now anyway, so we can initialize the
 676      * baudrate.
 677      */
 678     if (NC_ISATTY(trm->Filedes)) {
 679         TCB->drv->td_mode(TCB, TRUE, TRUE);
 680     }
 681 }
 682
 683 #define MAX_PALETTE     8
 684 #define InPalette(n)    ((n) >= 0 && (n) < MAX_PALETTE)
 685
 686 static void
 687 drv_initpair(TERMINAL_CONTROL_BLOCK * TCB, int pair, int f, int b)
 688 {
 689     SCREEN *sp;
 690
 691     AssertTCB();
 692     SetSP();
 693
 694     if ((initialize_pair != NULL) && InPalette(f) && InPalette(b)) {
 695         const color_t *tp = InfoOf(sp).defaultPalette;
 696
 697         TR(TRACE_ATTRS,
 698            ("initializing pair: pair = %d, fg=(%d,%d,%d), bg=(%d,%d,%d)",
 699             pair,
 700             tp[f].red, tp[f].green, tp[f].blue,
 701             tp[b].red, tp[b].green, tp[b].blue));
 702
 703         NCURSES_PUTP2("initialize_pair",
 704                       TPARM_7(initialize_pair,
 705                               pair,
 706                               tp[f].red, tp[f].green, tp[f].blue,
 707                               tp[b].red, tp[b].green, tp[b].blue));
 708     }
 709 }
 710
 711 static int
 712 default_fg(SCREEN *sp)
 713 {
 714 #if NCURSES_EXT_FUNCS
 715     return (sp != 0) ? sp->_default_fg : COLOR_WHITE;
 716 #else
 717     return COLOR_WHITE;
 718 #endif
 719 }
 720
 721 static int
 722 default_bg(SCREEN *sp)
 723 {
 724 #if NCURSES_EXT_FUNCS
 725     return sp != 0 ? sp->_default_bg : COLOR_BLACK;
 726 #else
 727     return COLOR_BLACK;
 728 #endif
 729 }
 730
 731 static void
 732 drv_initcolor(TERMINAL_CONTROL_BLOCK * TCB,
 733               int color, int r, int g, int b)
 734 {
 735     SCREEN *sp = TCB->csp;
 736
 737     AssertTCB();
 738     if (initialize_color != NULL) {
 739         NCURSES_PUTP2("initialize_color",
 740                       TPARM_4(initialize_color, color, r, g, b));
 741     }
 742 }
 743
 744 static void
 745 drv_do_color(TERMINAL_CONTROL_BLOCK * TCB,
 746              int old_pair,
 747              int pair,
 748              int reverse,
 749              NCURSES_SP_OUTC outc)
 750 {
 751     SCREEN *sp = TCB->csp;
 752     NCURSES_COLOR_T fg = COLOR_DEFAULT;
 753     NCURSES_COLOR_T bg = COLOR_DEFAULT;
 754     NCURSES_COLOR_T old_fg, old_bg;
 755
 756     AssertTCB();
 757     if (sp == 0)
 758         return;
 759
 760     if (pair < 0 || pair >= COLOR_PAIRS) {
 761         return;
 762     } else if (pair != 0) {
 763         if (set_color_pair) {
 764             TPUTS_TRACE("set_color_pair");
 765             NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
 766                                     TPARM_1(set_color_pair, pair), 1, outc);
 767             return;
 768         } else if (sp != 0) {
 769             NCURSES_SP_NAME(pair_content) (NCURSES_SP_ARGx
 770                                            (short) pair,
 771                                            &fg,
 772                                            &bg);
 773         }
 774     }
 775
 776     if (old_pair >= 0
 777         && sp != 0
 778         && NCURSES_SP_NAME(pair_content) (NCURSES_SP_ARGx
 779                                           (short) old_pair,
 780                                           &old_fg,
 781                                           &old_bg) !=ERR) {
 782         if ((isDefaultColor(fg) && !isDefaultColor(old_fg))
 783             || (isDefaultColor(bg) && !isDefaultColor(old_bg))) {
 784 #if NCURSES_EXT_FUNCS
 785             /*
 786              * A minor optimization - but extension.  If "AX" is specified in
 787              * the terminal description, treat it as screen's indicator of ECMA
 788              * SGR 39 and SGR 49, and assume the two sequences are independent.
 789              */
 790             if (sp->_has_sgr_39_49
 791                 && isDefaultColor(old_bg)
 792                 && !isDefaultColor(old_fg)) {
 793                 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx "\033[39m", 1, outc);
 794             } else if (sp->_has_sgr_39_49
 795                        && isDefaultColor(old_fg)
 796                        && !isDefaultColor(old_bg)) {
 797                 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx "\033[49m", 1, outc);
 798             } else
 799 #endif
 800                 drv_rescol(TCB);
 801         }
 802     } else {
 803         drv_rescol(TCB);
 804         if (old_pair < 0)
 805             return;
 806     }
 807
 808 #if NCURSES_EXT_FUNCS
 809     if (isDefaultColor(fg))
 810         fg = (NCURSES_COLOR_T) default_fg(sp);
 811     if (isDefaultColor(bg))
 812         bg = (NCURSES_COLOR_T) default_bg(sp);
 813 #endif
 814
 815     if (reverse) {
 816         NCURSES_COLOR_T xx = fg;
 817         fg = bg;
 818         bg = xx;
 819     }
 820
 821     TR(TRACE_ATTRS, ("setting colors: pair = %d, fg = %d, bg = %d", pair,
 822                      fg, bg));
 823
 824     if (!isDefaultColor(fg)) {
 825         drv_setcolor(TCB, TRUE, fg, outc);
 826     }
 827     if (!isDefaultColor(bg)) {
 828         drv_setcolor(TCB, FALSE, bg, outc);
 829     }
 830 }
 831
 832 #define xterm_kmous "\033[M"
 833 static void
 834 init_xterm_mouse(SCREEN *sp)
 835 {
 836     sp->_mouse_type = M_XTERM;
 837     sp->_mouse_xtermcap = NCURSES_SP_NAME(tigetstr) (NCURSES_SP_ARGx "XM");
 838     if (!VALID_STRING(sp->_mouse_xtermcap))
 839         sp->_mouse_xtermcap = "\033[?1000%?%p1%{1}%=%th%el%;";
 840 }
 841
 842 static void
 843 drv_initmouse(TERMINAL_CONTROL_BLOCK * TCB)
 844 {
 845     SCREEN *sp;
 846
 847     AssertTCB();
 848     SetSP();
 849
 850     /* we know how to recognize mouse events under "xterm" */
 851     if (sp != 0) {
 852         if (key_mouse != 0) {
 853             if (!strcmp(key_mouse, xterm_kmous)
 854                 || strstr(TerminalOf(sp)->type.term_names, "xterm") != 0) {
 855                 init_xterm_mouse(sp);
 856             }
 857         } else if (strstr(TerminalOf(sp)->type.term_names, "xterm") != 0) {
 858             if (_nc_add_to_try(&(sp->_keytry), xterm_kmous, KEY_MOUSE) == OK)
 859                 init_xterm_mouse(sp);
 860         }
 861     }
 862 }
 863
 864 static int
 865 drv_testmouse(TERMINAL_CONTROL_BLOCK * TCB,
 866               int delay
 867               EVENTLIST_2nd(_nc_eventlist * evl))
 868 {
 869     int rc = 0;
 870     SCREEN *sp;
 871
 872     AssertTCB();
 873     SetSP();
 874
 875 #if USE_SYSMOUSE
 876     if ((sp->_mouse_type == M_SYSMOUSE)
 877         && (sp->_sysmouse_head < sp->_sysmouse_tail)) {
 878         rc = TW_MOUSE;
 879     } else
 880 #endif
 881     {
 882         rc = TCBOf(sp)->drv->td_twait(TCBOf(sp),
 883                                       TWAIT_MASK,
 884                                       delay,
 885                                       (int *) 0
 886                                       EVENTLIST_2nd(evl));
 887 #if USE_SYSMOUSE
 888         if ((sp->_mouse_type == M_SYSMOUSE)
 889             && (sp->_sysmouse_head < sp->_sysmouse_tail)
 890             && (rc == 0)
 891             && (errno == EINTR)) {
 892             rc |= TW_MOUSE;
 893         }
 894 #endif
 895     }
 896     return rc;
 897 }
 898
 899 static int
 900 drv_mvcur(TERMINAL_CONTROL_BLOCK * TCB, int yold, int xold, int ynew, int xnew)
 901 {
 902     SCREEN *sp = TCB->csp;
 903     AssertTCB();
 904     return NCURSES_SP_NAME(_nc_mvcur) (sp, yold, xold, ynew, xnew);
 905 }
 906
 907 static void
 908 drv_hwlabel(TERMINAL_CONTROL_BLOCK * TCB, int labnum, char *text)
 909 {
 910     SCREEN *sp = TCB->csp;
 911
 912     AssertTCB();
 913     if (labnum > 0 && labnum <= num_labels) {
 914         NCURSES_PUTP2("plab_norm",
 915                       TPARM_2(plab_norm, labnum, text));
 916     }
 917 }
 918
 919 static void
 920 drv_hwlabelOnOff(TERMINAL_CONTROL_BLOCK * TCB, int OnFlag)
 921 {
 922     SCREEN *sp = TCB->csp;
 923
 924     AssertTCB();
 925     if (OnFlag) {
 926         NCURSES_PUTP2("label_on", label_on);
 927     } else {
 928         NCURSES_PUTP2("label_off", label_off);
 929     }
 930 }
 931
 932 static chtype
 933 drv_conattr(TERMINAL_CONTROL_BLOCK * TCB)
 934 {
 935     SCREEN *sp = TCB->csp;
 936     chtype attrs = A_NORMAL;
 937
 938     AssertTCB();
 939     if (enter_alt_charset_mode)
 940         attrs |= A_ALTCHARSET;
 941
 942     if (enter_blink_mode)
 943         attrs |= A_BLINK;
 944
 945     if (enter_bold_mode)
 946         attrs |= A_BOLD;
 947
 948     if (enter_dim_mode)
 949         attrs |= A_DIM;
 950
 951     if (enter_reverse_mode)
 952         attrs |= A_REVERSE;
 953
 954     if (enter_standout_mode)
 955         attrs |= A_STANDOUT;
 956
 957     if (enter_protected_mode)
 958         attrs |= A_PROTECT;
 959
 960     if (enter_secure_mode)
 961         attrs |= A_INVIS;
 962
 963     if (enter_underline_mode)
 964         attrs |= A_UNDERLINE;
 965
 966     if (sp && sp->_coloron)
 967         attrs |= A_COLOR;
 968
 969 #if USE_ITALIC
 970     if (enter_italics_mode)
 971         attrs |= A_ITALIC;
 972 #endif
 973
 974     return (attrs);
 975 }
 976
 977 static void
 978 drv_setfilter(TERMINAL_CONTROL_BLOCK * TCB)
 979 {
 980     AssertTCB();
 981
 982     clear_screen = 0;
 983     cursor_down = parm_down_cursor = 0;
 984     cursor_address = 0;
 985     cursor_up = parm_up_cursor = 0;
 986     row_address = 0;
 987     cursor_home = carriage_return;
 988 }
 989
 990 static void
 991 drv_initacs(TERMINAL_CONTROL_BLOCK * TCB, chtype *real_map, chtype *fake_map)
 992 {
 993     SCREEN *sp = TCB->csp;
 994
 995     AssertTCB();
 996     assert(sp != 0);
 997     if (ena_acs != NULL) {
 998         NCURSES_PUTP2("ena_acs", ena_acs);
 999     }
1000 #if NCURSES_EXT_FUNCS
1001     /*
1002      * Linux console "supports" the "PC ROM" character set by the coincidence
1003      * that smpch/rmpch and smacs/rmacs have the same values.  ncurses has
1004      * no codepage support (see SCO Merge for an example).  Outside of the
1005      * values defined in acsc, there are no definitions for the "PC ROM"
1006      * character set (assumed by some applications to be codepage 437), but we
1007      * allow those applications to use those codepoints.
1008      *
1009      * test/blue.c uses this feature.
1010      */
1011 #define PCH_KLUDGE(a,b) (a != 0 && b != 0 && !strcmp(a,b))
1012     if (PCH_KLUDGE(enter_pc_charset_mode, enter_alt_charset_mode) &&
1013         PCH_KLUDGE(exit_pc_charset_mode, exit_alt_charset_mode)) {
1014         size_t i;
1015         for (i = 1; i < ACS_LEN; ++i) {
1016             if (real_map[i] == 0) {
1017                 real_map[i] = (chtype) i;
1018                 if (real_map != fake_map) {
1019                     if (sp != 0)
1020                         sp->_screen_acs_map[i] = TRUE;
1021                 }
1022             }
1023         }
1024     }
1025 #endif
1026
1027     if (acs_chars != NULL) {
1028         size_t i = 0;
1029         size_t length = strlen(acs_chars);
1030
1031         while (i + 1 < length) {
1032             if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) {
1033                 real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET;
1034                 if (sp != 0)
1035                     sp->_screen_acs_map[UChar(acs_chars[i])] = TRUE;
1036             }
1037             i += 2;
1038         }
1039     }
1040 #ifdef TRACE
1041     /* Show the equivalent mapping, noting if it does not match the
1042      * given attribute, whether by re-ordering or duplication.
1043      */
1044     if (USE_TRACEF(TRACE_CALLS)) {
1045         size_t n, m;
1046         char show[ACS_LEN * 2 + 1];
1047         for (n = 1, m = 0; n < ACS_LEN; n++) {
1048             if (real_map[n] != 0) {
1049                 show[m++] = (char) n;
1050                 show[m++] = (char) ChCharOf(real_map[n]);
1051             }
1052         }
1053         show[m] = 0;
1054         if (acs_chars == NULL || strcmp(acs_chars, show))
1055             _tracef("%s acs_chars %s",
1056                     (acs_chars == NULL) ? "NULL" : "READ",
1057                     _nc_visbuf(acs_chars));
1058         _tracef("%s acs_chars %s",
1059                 (acs_chars == NULL)
1060                 ? "NULL"
1061                 : (strcmp(acs_chars, show)
1062                    ? "DIFF"
1063                    : "SAME"),
1064                 _nc_visbuf(show));
1065
1066         _nc_unlock_global(tracef);
1067     }
1068 #endif /* TRACE */
1069 }
1070
1071 #define ENSURE_TINFO(sp) (TCBOf(sp)->drv->isTerminfo)
1072
1073 NCURSES_EXPORT(void)
1074 _nc_cookie_init(SCREEN *sp)
1075 {
1076     bool support_cookies = USE_XMC_SUPPORT;
1077     TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) (sp->_term);
1078
1079     if (sp == 0 || !ENSURE_TINFO(sp))
1080         return;
1081
1082 #if USE_XMC_SUPPORT
1083     /*
1084      * If we have no magic-cookie support compiled-in, or if it is suppressed
1085      * in the environment, reset the support-flag.
1086      */
1087     if (magic_cookie_glitch >= 0) {
1088         if (getenv("NCURSES_NO_MAGIC_COOKIE") != 0) {
1089             support_cookies = FALSE;
1090         }
1091     }
1092 #endif
1093
1094     if (!support_cookies && magic_cookie_glitch >= 0) {
1095         T(("will disable attributes to work w/o magic cookies"));
1096     }
1097
1098     if (magic_cookie_glitch > 0) {      /* tvi, wyse */
1099
1100         sp->_xmc_triggers = sp->_ok_attributes & XMC_CONFLICT;
1101 #if 0
1102         /*
1103          * We "should" treat colors as an attribute.  The wyse350 (and its
1104          * clones) appear to be the only ones that have both colors and magic
1105          * cookies.
1106          */
1107         if (has_colors()) {
1108             sp->_xmc_triggers |= A_COLOR;
1109         }
1110 #endif
1111         sp->_xmc_suppress = sp->_xmc_triggers & (chtype) ~(A_BOLD);
1112
1113         T(("magic cookie attributes %s", _traceattr(sp->_xmc_suppress)));
1114         /*
1115          * Supporting line-drawing may be possible.  But make the regular
1116          * video attributes work first.
1117          */
1118         acs_chars = ABSENT_STRING;
1119         ena_acs = ABSENT_STRING;
1120         enter_alt_charset_mode = ABSENT_STRING;
1121         exit_alt_charset_mode = ABSENT_STRING;
1122 #if USE_XMC_SUPPORT
1123         /*
1124          * To keep the cookie support simple, suppress all of the optimization
1125          * hooks except for clear_screen and the cursor addressing.
1126          */
1127         if (support_cookies) {
1128             clr_eol = ABSENT_STRING;
1129             clr_eos = ABSENT_STRING;
1130             set_attributes = ABSENT_STRING;
1131         }
1132 #endif
1133     } else if (magic_cookie_glitch == 0) {      /* hpterm */
1134     }
1135
1136     /*
1137      * If magic cookies are not supported, cancel the strings that set
1138      * video attributes.
1139      */
1140     if (!support_cookies && magic_cookie_glitch >= 0) {
1141         magic_cookie_glitch = ABSENT_NUMERIC;
1142         set_attributes = ABSENT_STRING;
1143         enter_blink_mode = ABSENT_STRING;
1144         enter_bold_mode = ABSENT_STRING;
1145         enter_dim_mode = ABSENT_STRING;
1146         enter_reverse_mode = ABSENT_STRING;
1147         enter_standout_mode = ABSENT_STRING;
1148         enter_underline_mode = ABSENT_STRING;
1149     }
1150
1151     /* initialize normal acs before wide, since we use mapping in the latter */
1152 #if !USE_WIDEC_SUPPORT
1153     if (_nc_unicode_locale() && _nc_locale_breaks_acs(sp->_term)) {
1154         acs_chars = NULL;
1155         ena_acs = NULL;
1156         enter_alt_charset_mode = NULL;
1157         exit_alt_charset_mode = NULL;
1158         set_attributes = NULL;
1159     }
1160 #endif
1161 }
1162
1163 static int
1164 drv_twait(TERMINAL_CONTROL_BLOCK * TCB,
1165           int mode,
1166           int milliseconds,
1167           int *timeleft
1168           EVENTLIST_2nd(_nc_eventlist * evl))
1169 {
1170     SCREEN *sp;
1171
1172     AssertTCB();
1173     SetSP();
1174
1175     return _nc_timed_wait(sp, mode, milliseconds, timeleft EVENTLIST_2nd(evl));
1176 }
1177
1178 static int
1179 drv_read(TERMINAL_CONTROL_BLOCK * TCB, int *buf)
1180 {
1181     SCREEN *sp;
1182     unsigned char c2 = 0;
1183     int n;
1184
1185     AssertTCB();
1186     assert(buf);
1187     SetSP();
1188
1189 # if USE_PTHREADS_EINTR
1190     if ((pthread_self) && (pthread_kill) && (pthread_equal))
1191         _nc_globals.read_thread = pthread_self();
1192 # endif
1193     n = (int) read(sp->_ifd, &c2, (size_t) 1);
1194 #if USE_PTHREADS_EINTR
1195     _nc_globals.read_thread = 0;
1196 #endif
1197     *buf = (int) c2;
1198     return n;
1199 }
1200
1201 static int
1202 drv_nap(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED, int ms)
1203 {
1204 #if HAVE_NANOSLEEP
1205     {
1206         struct timespec request, remaining;
1207         request.tv_sec = ms / 1000;
1208         request.tv_nsec = (ms % 1000) * 1000000;
1209         while (nanosleep(&request, &remaining) == -1
1210                && errno == EINTR) {
1211             request = remaining;
1212         }
1213     }
1214 #else
1215     _nc_timed_wait(0, 0, ms, (int *) 0 EVENTLIST_2nd(0));
1216 #endif
1217     return OK;
1218 }
1219
1220 static int
1221 __nc_putp(SCREEN *sp, const char *name GCC_UNUSED, const char *value)
1222 {
1223     int rc = ERR;
1224
1225     if (value) {
1226         rc = NCURSES_PUTP2(name, value);
1227     }
1228     return rc;
1229 }
1230
1231 static int
1232 __nc_putp_flush(SCREEN *sp, const char *name, const char *value)
1233 {
1234     int rc = __nc_putp(sp, name, value);
1235     if (rc != ERR) {
1236         NCURSES_SP_NAME(_nc_flush) (sp);
1237     }
1238     return rc;
1239 }
1240
1241 static int
1242 drv_kpad(TERMINAL_CONTROL_BLOCK * TCB, int flag)
1243 {
1244     int ret = ERR;
1245     SCREEN *sp;
1246
1247     AssertTCB();
1248
1249     sp = TCB->csp;
1250
1251     if (sp) {
1252         if (flag) {
1253             (void) __nc_putp_flush(sp, "keypad_xmit", keypad_xmit);
1254         } else if (!flag && keypad_local) {
1255             (void) __nc_putp_flush(sp, "keypad_local", keypad_local);
1256         }
1257         if (flag && !sp->_tried) {
1258             _nc_init_keytry(sp);
1259             sp->_tried = TRUE;
1260         }
1261         ret = OK;
1262     }
1263
1264     return ret;
1265 }
1266
1267 static int
1268 drv_keyok(TERMINAL_CONTROL_BLOCK * TCB, int c, int flag)
1269 {
1270     SCREEN *sp;
1271     int code = ERR;
1272     int count = 0;
1273     char *s;
1274
1275     AssertTCB();
1276     SetSP();
1277
1278     if (c >= 0) {
1279         unsigned ch = (unsigned) c;
1280         if (flag) {
1281             while ((s = _nc_expand_try(sp->_key_ok,
1282                                        ch, &count, (size_t) 0)) != 0
1283                    && _nc_remove_key(&(sp->_key_ok), ch)) {
1284                 code = _nc_add_to_try(&(sp->_keytry), s, ch);
1285                 free(s);
1286                 count = 0;
1287                 if (code != OK)
1288                     break;
1289             }
1290         } else {
1291             while ((s = _nc_expand_try(sp->_keytry,
1292                                        ch, &count, (size_t) 0)) != 0
1293                    && _nc_remove_key(&(sp->_keytry), ch)) {
1294                 code = _nc_add_to_try(&(sp->_key_ok), s, ch);
1295                 free(s);
1296                 count = 0;
1297                 if (code != OK)
1298                     break;
1299             }
1300         }
1301     }
1302     return (code);
1303 }
1304
1305 static int
1306 drv_cursorSet(TERMINAL_CONTROL_BLOCK * TCB, int vis)
1307 {
1308     SCREEN *sp;
1309     int code = ERR;
1310
1311     AssertTCB();
1312     SetSP();
1313
1314     T((T_CALLED("tinfo:drv_cursorSet(%p,%d)"), (void *) SP_PARM, vis));
1315
1316     if (SP_PARM != 0 && IsTermInfo(SP_PARM)) {
1317         switch (vis) {
1318         case 2:
1319             code = NCURSES_PUTP2_FLUSH("cursor_visible", cursor_visible);
1320             break;
1321         case 1:
1322             code = NCURSES_PUTP2_FLUSH("cursor_normal", cursor_normal);
1323             break;
1324         case 0:
1325             code = NCURSES_PUTP2_FLUSH("cursor_invisible", cursor_invisible);
1326             break;
1327         }
1328     } else {
1329         code = ERR;
1330     }
1331     returnCode(code);
1332 }
1333
1334 static bool
1335 drv_kyExist(TERMINAL_CONTROL_BLOCK * TCB, int key)
1336 {
1337     bool res = FALSE;
1338
1339     AssertTCB();
1340     if (TCB->csp)
1341         res = TINFO_HAS_KEY(TCB->csp, key) == 0 ? FALSE : TRUE;
1342
1343     return res;
1344 }
1345
1346 NCURSES_EXPORT_VAR (TERM_DRIVER) _nc_TINFO_DRIVER = {
1347     TRUE,
1348         drv_Name,               /* Name */
1349         drv_CanHandle,          /* CanHandle */
1350         drv_init,               /* init */
1351         drv_release,            /* release */
1352         drv_size,               /* size */
1353         drv_sgmode,             /* sgmode */
1354         drv_conattr,            /* conattr */
1355         drv_mvcur,              /* hwcur */
1356         drv_mode,               /* mode */
1357         drv_rescol,             /* rescol */
1358         drv_rescolors,          /* rescolors */
1359         drv_setcolor,           /* color */
1360         drv_dobeepflash,        /* doBeepOrFlash */
1361         drv_initpair,           /* initpair */
1362         drv_initcolor,          /* initcolor */
1363         drv_do_color,           /* docolor */
1364         drv_initmouse,          /* initmouse */
1365         drv_testmouse,          /* testmouse */
1366         drv_setfilter,          /* setfilter */
1367         drv_hwlabel,            /* hwlabel */
1368         drv_hwlabelOnOff,       /* hwlabelOnOff */
1369         drv_doupdate,           /* update */
1370         drv_defaultcolors,      /* defaultcolors */
1371         drv_print,              /* print */
1372         drv_getsize,            /* getsize */
1373         drv_setsize,            /* setsize */
1374         drv_initacs,            /* initacs */
1375         drv_screen_init,        /* scinit */
1376         drv_wrap,               /* scexit */
1377         drv_twait,              /* twait  */
1378         drv_read,               /* read */
1379         drv_nap,                /* nap */
1380         drv_kpad,               /* kpad */
1381         drv_keyok,              /* kyOk */
1382         drv_kyExist,            /* kyExist */
1383         drv_cursorSet           /* cursorSet */
1384 };