xref: /openbsd/lib/libcurses/curses.priv.h (revision c7ef0cfc)
1 /* $OpenBSD: curses.priv.h,v 1.36 2023/10/17 09:52:08 nicm Exp $ */
2 
3 /****************************************************************************
4  * Copyright 2018-2022,2023 Thomas E. Dickey                                *
5  * Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
6  *                                                                          *
7  * Permission is hereby granted, free of charge, to any person obtaining a  *
8  * copy of this software and associated documentation files (the            *
9  * "Software"), to deal in the Software without restriction, including      *
10  * without limitation the rights to use, copy, modify, merge, publish,      *
11  * distribute, distribute with modifications, sublicense, and/or sell       *
12  * copies of the Software, and to permit persons to whom the Software is    *
13  * furnished to do so, subject to the following conditions:                 *
14  *                                                                          *
15  * The above copyright notice and this permission notice shall be included  *
16  * in all copies or substantial portions of the Software.                   *
17  *                                                                          *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
21  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
24  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
25  *                                                                          *
26  * Except as contained in this notice, the name(s) of the above copyright   *
27  * holders shall not be used in advertising or otherwise to promote the     *
28  * sale, use or other dealings in this Software without prior written       *
29  * authorization.                                                           *
30  ****************************************************************************/
31 
32 /****************************************************************************
33  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
34  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
35  *     and: Thomas E. Dickey                        1996-on                 *
36  *     and: Juergen Pfeifer                                                 *
37  ****************************************************************************/
38 
39 /*
40  * $Id: curses.priv.h,v 1.36 2023/10/17 09:52:08 nicm Exp $
41  *
42  *	curses.priv.h
43  *
44  *	Header file for curses library objects which are private to
45  *	the library.
46  *
47  */
48 
49 #ifndef CURSES_PRIV_H
50 #define CURSES_PRIV_H 1
51 /* *INDENT-OFF* */
52 
53 #include <ncurses_dll.h>
54 
55 #ifdef __cplusplus
56 extern "C" {
57 #endif
58 
59 #include <ncurses_cfg.h>
60 
61 #if USE_RCS_IDS
62 #define MODULE_ID(id) static const char Ident[] = id;
63 #else
64 #define MODULE_ID(id) /*nothing*/
65 #endif
66 
67 #include <stddef.h>		/* for offsetof */
68 #include <stdlib.h>
69 #include <string.h>
70 #include <sys/types.h>
71 #include <sys/stat.h>
72 
73 #if HAVE_UNISTD_H
74 #include <unistd.h>
75 #endif
76 
77 #if HAVE_LIMITS_H
78 # include <limits.h>
79 #elif HAVE_SYS_PARAM_H
80 # include <sys/param.h>
81 #endif
82 
83 #include <assert.h>
84 #include <stdio.h>
85 
86 #include <errno.h>
87 
88 #if defined __hpux
89 #  ifndef EILSEQ
90 #    define EILSEQ 47
91 #  endif
92 #endif
93 
94 #ifndef PATH_MAX
95 # if defined(_POSIX_PATH_MAX)
96 #  define PATH_MAX _POSIX_PATH_MAX
97 # elif defined(MAXPATHLEN)
98 #  define PATH_MAX MAXPATHLEN
99 # else
100 #  define PATH_MAX 255	/* the Posix minimum path-size */
101 # endif
102 #endif
103 
104 #if DECL_ERRNO
105 extern int errno;
106 #endif
107 
108 /* Some Windows related defines */
109 #undef _NC_WINDOWS
110 #if (defined(_WIN32) || defined(_WIN64))
111 #define _NC_WINDOWS
112 #else
113 #undef EXP_WIN32_DRIVER
114 #endif
115 
116 #undef _NC_MINGW
117 #if (defined(__MINGW32__) || defined(__MINGW64__))
118 #define _NC_MINGW
119 #endif
120 
121 #undef _NC_MSC
122 #ifdef _MSC_VER
123 #define _NC_MSC
124 #endif
125 
126 /* Some systems have a broken 'select()', but workable 'poll()'.  Use that */
127 #if HAVE_WORKING_POLL
128 #define USE_FUNC_POLL 1
129 #if HAVE_POLL_H
130 #include <poll.h>
131 #else
132 #include <sys/poll.h>
133 #endif
134 #else
135 #define USE_FUNC_POLL 0
136 #endif
137 
138 #if HAVE_INTTYPES_H
139 # include <inttypes.h>
140 #else
141 # if HAVE_STDINT_H
142 #  include <stdint.h>
143 # endif
144 #endif
145 
146 #if (defined(__USE_MINGW_ANSI_STDIO) && __USE_MINGW_ANSI_STDIO != 0) && (defined(__GNUC__) && (__GNUC__ < 12))
147 # undef PRIxPTR		/* gcc bug fixed in 12.x */
148 # define PRIxPTR	"lX"
149 # define CASTxPTR(n)    (unsigned long)(intptr_t)(void*)(n)
150 #else
151 # define CASTxPTR(n)    (intptr_t)(void*)(n)
152 #endif
153 
154 #ifndef PRIxPTR
155 # define PRIxPTR	"lx"
156 # define CASTxPTR(n)    (long)(void*)(n)
157 #endif
158 
159 /* include signal.h before curses.h to work-around defect in glibc 2.1.3 */
160 #include <signal.h>
161 
162 /* Alessandro Rubini's GPM (general-purpose mouse) */
163 #if HAVE_LIBGPM && HAVE_GPM_H
164 #define USE_GPM_SUPPORT 1
165 #else
166 #define USE_GPM_SUPPORT 0
167 #endif
168 
169 /* QNX mouse support */
170 #if defined(__QNX__) && !defined(__QNXNTO__)
171 #define USE_QNX_MOUSE 1
172 #else
173 #define USE_QNX_MOUSE 0
174 #endif
175 
176 /* EMX mouse support */
177 #ifdef __EMX__
178 #define USE_EMX_MOUSE 1
179 #else
180 #define USE_EMX_MOUSE 0
181 #endif
182 
183 /* kLIBC keyboard/mouse support */
184 #if defined(__OS2__) && defined(__KLIBC__)
185 #define USE_KLIBC_KBD   1
186 #define USE_KLIBC_MOUSE 1
187 #else
188 #define USE_KLIBC_KBD   0
189 #define USE_KLIBC_MOUSE 0
190 #endif
191 
192 #define DEFAULT_MAXCLICK 166
193 #define EV_MAX		8	/* size of mouse circular event queue */
194 
195 /*
196  * If we don't have signals to support it, don't add a sigwinch handler.
197  * In any case, resizing is an extended feature.  Use it if we've got it.
198  */
199 #if !NCURSES_EXT_FUNCS
200 #undef HAVE_SIZECHANGE
201 #define HAVE_SIZECHANGE 0
202 #endif
203 
204 #if HAVE_SIZECHANGE && USE_SIGWINCH && defined(SIGWINCH)
205 #define USE_SIZECHANGE 1
206 #else
207 #define USE_SIZECHANGE 0
208 #undef USE_SIGWINCH
209 #define USE_SIGWINCH 0
210 #endif
211 
212 /*
213  * When building in the MSYS2 environment, the automatic discovery of
214  * the path separator in configure doesn't work properly. So, if building
215  * for MinGW, we enforce the correct Windows PATH separator
216  */
217 #if defined(_NC_WINDOWS)
218 #  ifdef NCURSES_PATHSEP
219 #    undef NCURSES_PATHSEP
220 #  endif
221 #  define NCURSES_PATHSEP ';'
222 #endif
223 
224 /*
225  * When the standard handles have been redirected (such as inside a text editor
226  * or the less utility), keystrokes must be read from the console rather than
227  * the redirected handle.  The standard output handle suffers from a similar
228  * problem.  Both handles are not closed once opened.  The console shall be
229  * considered reachable throughout the process.
230  */
231 #if defined(_NC_WINDOWS)
232 #define GetDirectHandle(fileName, shareMode) \
233 	CreateFile(TEXT(fileName), \
234 		   GENERIC_READ | GENERIC_WRITE, \
235 		   shareMode, \
236 		   0, \
237 		   OPEN_EXISTING, \
238 		   0, \
239 		   0)
240 #endif
241 
242 /*
243  * Not all platforms have memmove; some have an equivalent bcopy.  (Some may
244  * have neither).
245  */
246 #if USE_OK_BCOPY
247 #define memmove(d,s,n) bcopy(s,d,n)
248 #elif USE_MY_MEMMOVE
249 #define memmove(d,s,n) _nc_memmove(d,s,n)
250 extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
251 #endif
252 
253 /*
254  * If we have va_copy(), use it for assigning va_list's.
255  */
256 #if defined(HAVE___VA_COPY)
257 #define begin_va_copy(dst,src)	__va_copy(dst, src)
258 #define end_va_copy(dst)	va_end(dst)
259 #elif defined(va_copy) || defined(HAVE_VA_COPY)
260 #define begin_va_copy(dst,src)	va_copy(dst, src)
261 #define end_va_copy(dst)	va_end(dst)
262 #else
263 #define begin_va_copy(dst,src) (dst) = (src)
264 #define end_va_copy(dst)	/* nothing */
265 #endif
266 
267 /*
268  * Either/both S_ISxxx and/or S_IFxxx are defined in sys/types.h; some systems
269  * lack one or the other.
270  */
271 #ifndef S_ISDIR
272 #define S_ISDIR(mode) ((mode & S_IFMT) == S_IFDIR)
273 #endif
274 
275 #ifndef S_ISREG
276 #define S_ISREG(mode) ((mode & S_IFMT) == S_IFREG)
277 #endif
278 
279 /*
280  * POSIX ignores the "b", which c89 specified.  Some very old systems do not
281  * accept it.
282  */
283 #if USE_FOPEN_BIN_R
284 #define BIN_R	"rb"
285 #define BIN_W	"wb"
286 #else
287 #define BIN_R	"r"
288 #define BIN_W	"w"
289 #endif
290 
291 /*
292  * Scroll hints are useless when hashmap is used
293  */
294 #if !USE_SCROLL_HINTS
295 #if !USE_HASHMAP
296 #define USE_SCROLL_HINTS 1
297 #else
298 #define USE_SCROLL_HINTS 0
299 #endif
300 #endif
301 
302 #if USE_SCROLL_HINTS
303 #define if_USE_SCROLL_HINTS(stmt) stmt
304 #else
305 #define if_USE_SCROLL_HINTS(stmt) /*nothing*/
306 #endif
307 
308 #include <nc_string.h>
309 
310 /*
311  * Options for terminal drivers, etc...
312  */
313 #ifdef USE_TERM_DRIVER
314 #define NO_TERMINAL "unknown"
315 #define USE_SP_RIPOFF     1
316 #define USE_SP_TERMTYPE   1
317 #define USE_SP_WINDOWLIST 1
318 #else
319 #define NO_TERMINAL 0
320 #endif
321 
322 #define VALID_TERM_ENV(term_env, no_terminal) \
323 	(term_env = (NonEmpty(term_env) \
324 		     ? term_env \
325 		     : no_terminal), \
326 	 NonEmpty(term_env))
327 
328 /*
329  * Note:  ht/cbt expansion flakes out randomly under Linux 1.1.47, but only
330  * when we're throwing control codes at the screen at high volume.  To see
331  * this, re-enable USE_HARD_TABS and run worm for a while.  Other systems
332  * probably don't want to define this either due to uncertainties about tab
333  * delays and expansion in raw mode.
334  */
335 
336 #define TRIES struct tries
337 typedef TRIES {
338 	TRIES    *child;            /* ptr to child.  NULL if none          */
339 	TRIES    *sibling;          /* ptr to sibling.  NULL if none        */
340 	unsigned char    ch;        /* character at this node               */
341 	unsigned short   value;     /* code of string so far.  0 if none.   */
342 #undef TRIES
343 } TRIES;
344 
345 /*
346  * Common/troublesome character definitions
347  */
348 #define StringOf(ch) {ch, 0}
349 
350 #define L_BRACE '{'
351 #define R_BRACE '}'
352 #define S_QUOTE '\''
353 #define D_QUOTE '"'
354 
355 #define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~"
356 
357 /*
358  * Structure for palette tables
359  */
360 
361 #define MAXCOLUMNS    135
362 #define MAXLINES      66
363 #define FIFO_SIZE     MAXCOLUMNS+2  /* for nocbreak mode input */
364 
365 #define ACS_LEN       128
366 
367 #define WINDOWLIST struct _win_list
368 
369 #if USE_WIDEC_SUPPORT
370 #define _nc_bkgd    _bkgrnd
371 #else
372 #undef _XOPEN_SOURCE_EXTENDED
373 #undef _XPG5
374 #define _nc_bkgd    _bkgd
375 #define wgetbkgrnd(win, wch)	((*wch = win->_bkgd) != 0 ? OK : ERR)
376 #define wbkgrnd	    wbkgd
377 #endif
378 
379 #undef NCURSES_OPAQUE
380 #define NCURSES_INTERNALS 1
381 #define NCURSES_OPAQUE 0
382 
383 #include <curses.h>	/* we'll use -Ipath directive to get the right one! */
384 
385 #if !(defined(NCURSES_WGETCH_EVENTS) && defined(NEED_KEY_EVENT))
386 #undef KEY_EVENT		/* reduce compiler-warnings with Visual C++ */
387 #endif
388 
389 typedef struct
390 {
391     int red, green, blue;	/* what color_content() returns */
392     int r, g, b;		/* params to init_color() */
393     int init;			/* true if we called init_color() */
394 }
395 color_t;
396 
397 typedef union {
398     struct {
399 	unsigned char red;
400 	unsigned char green;
401 	unsigned char blue;
402     } bits;			/* bits per color-value in RGB */
403     unsigned value;
404 } rgb_bits_t;
405 
406 /*
407  * If curses.h did not expose the SCREEN-functions, then we do not need the
408  * parameter in the corresponding unextended functions.
409  */
410 
411 #define USE_SP_FUNC_SUPPORT     NCURSES_SP_FUNCS
412 #define USE_EXT_SP_FUNC_SUPPORT (NCURSES_SP_FUNCS && NCURSES_EXT_FUNCS)
413 
414 #if NCURSES_SP_FUNCS
415 #define SP_PARM         sp	/* use parameter */
416 #define NCURSES_SP_ARG          SP_PARM
417 #define NCURSES_SP_DCL  SCREEN *NCURSES_SP_ARG
418 #define NCURSES_SP_DCL0 NCURSES_SP_DCL
419 #define NCURSES_SP_ARGx         NCURSES_SP_ARG,
420 #define NCURSES_SP_DCLx SCREEN *NCURSES_SP_ARGx
421 #else
422 #define SP_PARM         SP	/* use global variable */
423 #define NCURSES_SP_ARG
424 #define NCURSES_SP_DCL
425 #define NCURSES_SP_DCL0 void
426 #define NCURSES_SP_ARGx
427 #define NCURSES_SP_DCLx
428 #endif
429 
430 #include <nc_panel.h>
431 
432 #include <term.priv.h>
433 #include <nc_termios.h>
434 
435 #define IsPreScreen(sp)      (((sp) != 0) && sp->_prescreen)
436 #define HasTerminal(sp)      (((sp) != 0) && (0 != ((sp)->_term)))
437 #define IsValidScreen(sp)    (HasTerminal(sp) && !IsPreScreen(sp))
438 
439 #if USE_REENTRANT
440 #define CurTerm              _nc_prescreen._cur_term
441 #else
442 #define CurTerm              cur_term
443 #endif
444 
445 #if NCURSES_SP_FUNCS
446 #define TerminalOf(sp)       ((sp) ? ((sp)->_term ? (sp)->_term : CurTerm) : CurTerm)
447 #else
448 #define TerminalOf(sp)       CurTerm
449 #endif
450 
451 /*
452  * The legacy layout for TERMTYPE uses "short" for all of the numbers.  Moving
453  * past that, numeric capabilities can be "int" by using a TERMTYPE2 structure
454  * in TERMINAL, and doing most of the internal work using TERMTYPE2.  There are
455  * a few places (mostly to expose the legacy layout) where the distinction
456  * needs attention.
457  */
458 #if NCURSES_EXT_COLORS && HAVE_INIT_EXTENDED_COLOR
459 #define NCURSES_EXT_NUMBERS  1
460 #define NCURSES_INT2         int
461 #define SIZEOF_INT2          4
462 #define TerminalType(tp)     (tp)->type2
463 #else
464 #define NCURSES_EXT_NUMBERS  0
465 #define NCURSES_INT2         short
466 #define SIZEOF_INT2          2
467 #define TerminalType(tp)     (tp)->type
468 #endif
469 
470 #define SIZEOF_SHORT         2
471 
472 #ifdef CUR
473 #undef CUR
474 #define CUR TerminalType(cur_term).
475 #endif
476 
477 /*
478  * Reduce dependency on cur_term global by using terminfo data from SCREEN's
479  * pointer to this data.
480  */
481 #ifdef USE_SP_TERMTYPE
482 #undef CUR
483 #endif
484 
485 #define SP_TERMTYPE TerminalType(TerminalOf(sp)).
486 
487 #include <term_entry.h>
488 
489 #include <nc_tparm.h>
490 
491 /*
492  * Simplify ifdef's for the "*_ATTR" macros in case italics are not configured.
493  */
494 #if defined(A_ITALIC) && defined(exit_italics_mode)
495 #define USE_ITALIC 1
496 #else
497 #define USE_ITALIC 0
498 #undef  A_ITALIC
499 #define A_ITALIC 0
500 #endif
501 
502 /*
503  * Use these macros internally, to make tracing less verbose.  But leave the
504  * option for compiling the tracing into the library.
505  */
506 #if 1
507 #define ColorPair(n)		(NCURSES_BITS(n, 0) & A_COLOR)
508 #define PairNumber(a)		(NCURSES_CAST(int,(((unsigned long)(a) & A_COLOR) >> NCURSES_ATTR_SHIFT)))
509 #else
510 #define ColorPair(pair)		COLOR_PAIR(pair)
511 #define PairNumber(attr)	PAIR_NUMBER(attr)
512 #endif
513 
514 #define unColor(n)		unColor2(AttrOf(n))
515 #define unColor2(a)		((a) & ALL_BUT_COLOR)
516 
517 /*
518  * Extended-colors stores the color pair in a separate struct-member than the
519  * attributes.  But for compatibility, we handle most cases where a program
520  * written for non-extended colors stores the color in the attributes by
521  * checking for a color pair in both places.
522  */
523 #if NCURSES_EXT_COLORS
524 #define if_EXT_COLORS(stmt)	stmt
525 #define SetPair(value,p)	SetPair2((value).ext_color, AttrOf(value), p)
526 #define SetPair2(c,a,p)		c = (p), \
527 				a = (unColor2(a) | ColorPair(oldColor(c)))
528 #define GetPair(value)		GetPair2((value).ext_color, AttrOf(value))
529 #define GetPair2(c,a)		((c) ? (c) : PairNumber(a))
530 #define oldColor(p)		(((p) > 255) ? 255 : (p))
531 #define GET_WINDOW_PAIR(w)	GetPair2((w)->_color, (w)->_attrs)
532 #define SET_WINDOW_PAIR(w,p)	(w)->_color = (p)
533 #define SameAttrOf(a,b)		(AttrOf(a) == AttrOf(b) && GetPair(a) == GetPair(b))
534 
535 #define VIDPUTS(sp,attr,pair)	do { \
536 				    int vid_pair = pair; \
537 				    NCURSES_SP_NAME(vid_puts)( \
538 					NCURSES_SP_ARGx attr, \
539 					(NCURSES_PAIRS_T) pair, \
540 					&vid_pair, \
541 					NCURSES_OUTC_FUNC); \
542 				} while (0)
543 
544 #else /* !NCURSES_EXT_COLORS */
545 
546 #define if_EXT_COLORS(stmt)	/* nothing */
547 #define SetPair(value,p)	RemAttr(value, A_COLOR), \
548 				SetAttr(value, AttrOf(value) | ColorPair(p))
549 #define GetPair(value)		PairNumber(AttrOf(value))
550 #define GET_WINDOW_PAIR(w)	PairNumber(WINDOW_ATTRS(w))
551 #define SET_WINDOW_PAIR(w,p)	WINDOW_ATTRS(w) &= ALL_BUT_COLOR, \
552 				WINDOW_ATTRS(w) |= ColorPair(p)
553 #define SameAttrOf(a,b)		(AttrOf(a) == AttrOf(b))
554 
555 #define VIDPUTS(sp,attr,pair)	NCURSES_SP_NAME(vidputs)(NCURSES_SP_ARGx attr, NCURSES_OUTC_FUNC)
556 
557 #endif /* NCURSES_EXT_COLORS */
558 
559 #define NCURSES_OUTC_FUNC       NCURSES_SP_NAME(_nc_outch)
560 #define NCURSES_PUTP2(name,value)    NCURSES_SP_NAME(_nc_putp)(NCURSES_SP_ARGx name, value)
561 #define NCURSES_PUTP2_FLUSH(name,value)    NCURSES_SP_NAME(_nc_putp_flush)(NCURSES_SP_ARGx name, value)
562 
563 #if NCURSES_NO_PADDING
564 #define GetNoPadding(sp)	((sp) ? (sp)->_no_padding : _nc_prescreen._no_padding)
565 #define SetNoPadding(sp)	_nc_set_no_padding(sp)
566 extern NCURSES_EXPORT(void)     _nc_set_no_padding(SCREEN *);
567 #else
568 #define GetNoPadding(sp)	FALSE
569 #define SetNoPadding(sp)	/*nothing*/
570 #endif
571 
572 #define WINDOW_ATTRS(w)		((w)->_attrs)
573 
574 #define SCREEN_ATTRS(s)		(*((s)->_current_attr))
575 #define GET_SCREEN_PAIR(s)	GetPair(SCREEN_ATTRS(s))
576 #define SET_SCREEN_PAIR(s,p)	SetPair(SCREEN_ATTRS(s), p)
577 
578 #if USE_REENTRANT || NCURSES_SP_FUNCS
579 extern NCURSES_EXPORT(int *)    _nc_ptr_Lines (SCREEN *);
580 extern NCURSES_EXPORT(int *)    _nc_ptr_Cols (SCREEN *);
581 extern NCURSES_EXPORT(int *)    _nc_ptr_Tabsize (SCREEN *);
582 extern NCURSES_EXPORT(int *)    _nc_ptr_Escdelay (SCREEN *);
583 #endif
584 
585 #if USE_REENTRANT
586 
587 #define ptrLines(sp)         (sp ? &(sp->_LINES) : &(_nc_prescreen._LINES))
588 #define ptrCols(sp)          (sp ? &(sp->_COLS) : &(_nc_prescreen._COLS))
589 #define ptrTabsize(sp)       (sp ? &(sp->_TABSIZE) : &(_nc_prescreen._TABSIZE))
590 #define ptrEscdelay(sp)      (sp ? &(sp->_ESCDELAY) : &(_nc_prescreen._ESCDELAY))
591 
592 #define SET_LINES(value)     *_nc_ptr_Lines(SP_PARM) = value
593 #define SET_COLS(value)      *_nc_ptr_Cols(SP_PARM) = value
594 #define SET_TABSIZE(value)   *_nc_ptr_Tabsize(SP_PARM) = value
595 #define SET_ESCDELAY(value)  *_nc_ptr_Escdelay(SP_PARM) = value
596 
597 #else
598 
599 #define ptrLines(sp)         &LINES
600 #define ptrCols(sp)          &COLS
601 #define ptrTabsize(sp)       &TABSIZE
602 #define ptrEscdelay(sp)      &ESCDELAY
603 
604 #define SET_LINES(value)     LINES = value
605 #define SET_COLS(value)      COLS = value
606 #define SET_TABSIZE(value)   TABSIZE = value
607 #define SET_ESCDELAY(value)  ESCDELAY = value
608 
609 #endif
610 
611 #define IS_SUBWIN(w)         ((w)->_flags & _SUBWIN)
612 #define IS_PAD(w)            ((w)->_flags & _ISPAD)
613 #define IS_WRAPPED(w)        ((w)->_flags & _WRAPPED)
614 
615 #define HasHardTabs()	(NonEmpty(clear_all_tabs) && NonEmpty(set_tab))
616 
617 #define TR_MUTEX(data) _tracef("%s@%d: me:%08lX COUNT:%2u/%2d/%6d/%2d/%s%9u: " #data, \
618 	    __FILE__, __LINE__, \
619 	    (unsigned long) (pthread_self()), \
620 	    data.__data.__lock, \
621 	    data.__data.__count, \
622 	    data.__data.__owner, \
623 	    data.__data.__kind, \
624 	    (data.__data.__nusers > 5) ? " OOPS " : "", \
625 	    data.__data.__nusers)
626 #define TR_GLOBAL_MUTEX(name) TR_MUTEX(_nc_globals.mutex_##name)
627 
628 #if USE_WEAK_SYMBOLS
629 #if defined(__GNUC__)
630 #  if defined __USE_ISOC99
631 #    define _cat_pragma(exp)	_Pragma(#exp)
632 #    define _weak_pragma(exp)	_cat_pragma(weak name)
633 #  else
634 #    define _weak_pragma(exp)
635 #  endif
636 #  define _declare(name)	__extension__ extern __typeof__(name) name
637 #  define weak_symbol(name)	_weak_pragma(name) _declare(name) __attribute__((weak))
638 #else
639 #  undef USE_WEAK_SYMBOLS
640 #  define USE_WEAK_SYMBOLS 0
641 #endif
642 #endif
643 
644 #ifdef USE_PTHREADS
645 
646 #if USE_REENTRANT
647 #include <pthread.h>
648 extern NCURSES_EXPORT(void) _nc_init_pthreads(void);
649 extern NCURSES_EXPORT(void) _nc_mutex_init(pthread_mutex_t *);
650 extern NCURSES_EXPORT(int) _nc_mutex_lock(pthread_mutex_t *);
651 extern NCURSES_EXPORT(int) _nc_mutex_trylock(pthread_mutex_t *);
652 extern NCURSES_EXPORT(int) _nc_mutex_unlock(pthread_mutex_t *);
653 #define _nc_lock_global(name)	_nc_mutex_lock(&_nc_globals.mutex_##name)
654 #define _nc_try_global(name)    _nc_mutex_trylock(&_nc_globals.mutex_##name)
655 #define _nc_unlock_global(name)	_nc_mutex_unlock(&_nc_globals.mutex_##name)
656 
657 #else
658 #error POSIX threads requires --enable-reentrant option
659 #endif
660 
661 #ifdef USE_PTHREADS
662 #  if USE_WEAK_SYMBOLS
663 weak_symbol(pthread_sigmask);
664 weak_symbol(pthread_kill);
665 weak_symbol(pthread_self);
666 weak_symbol(pthread_equal);
667 weak_symbol(pthread_mutex_init);
668 weak_symbol(pthread_mutex_lock);
669 weak_symbol(pthread_mutex_unlock);
670 weak_symbol(pthread_mutex_trylock);
671 weak_symbol(pthread_mutexattr_settype);
672 weak_symbol(pthread_mutexattr_init);
673 extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
674 #    undef  sigprocmask
675 #    define sigprocmask(a, b, c) _nc_sigprocmask(a, b, c)
676 #    define GetThreadID() (((pthread_self)) ? pthread_self() : (pthread_t) getpid())
677 #  else
678 #    define GetThreadID() pthread_self()
679 #  endif
680 #endif
681 
682 #if HAVE_NANOSLEEP
683 #undef HAVE_NANOSLEEP
684 #define HAVE_NANOSLEEP 0	/* nanosleep suspends all threads */
685 #endif
686 
687 #else /* !USE_PTHREADS */
688 
689 #if USE_PTHREADS_EINTR
690 #  if USE_WEAK_SYMBOLS
691 #include <pthread.h>
692 weak_symbol(pthread_sigmask);
693 weak_symbol(pthread_kill);
694 weak_symbol(pthread_self);
695 weak_symbol(pthread_equal);
696 extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
697 #    undef  sigprocmask
698 #    define sigprocmask(a, b, c) _nc_sigprocmask(a, b, c)
699 #  endif
700 #endif /* USE_PTHREADS_EINTR */
701 
702 #define _nc_init_pthreads()	/* nothing */
703 #define _nc_mutex_init(obj)	/* nothing */
704 
705 #define _nc_lock_global(name)	/* nothing */
706 #define _nc_try_global(name)    0
707 #define _nc_unlock_global(name)	/* nothing */
708 #endif /* USE_PTHREADS */
709 
710 #if USE_PTHREADS_EINTR
711 extern NCURSES_EXPORT(void) _nc_set_read_thread(bool);
712 #else
713 #define _nc_set_read_thread(enable)	/* nothing */
714 #endif
715 
716 /*
717  * When using sp-funcs, locks are targeted to SCREEN-level granularity.
718  * So the locking is done in the non-sp-func (which calls the sp-func) rather
719  * than in the sp-func itself.
720  *
721  * Use the _nc_nonsp_XXX functions in the function using "NCURSES_SP_NAME()".
722  * Use the _nc_sp_XXX functions in the function using "#if NCURSES_SP_FUNCS".
723  */
724 #if NCURSES_SP_FUNCS
725 
726 #define _nc_nonsp_lock_global(name)	/* nothing */
727 #define _nc_nonsp_try_global(name)    0
728 #define _nc_nonsp_unlock_global(name)	/* nothing */
729 
730 #define _nc_sp_lock_global(name)	_nc_lock_global(name)
731 #define _nc_sp_try_global(name)         _nc_try_global(name)
732 #define _nc_sp_unlock_global(name)	_nc_unlock_global(name)
733 
734 #else
735 
736 #define _nc_nonsp_lock_global(name)	_nc_lock_global(name)
737 #define _nc_nonsp_try_global(name)      _nc_try_global(name)
738 #define _nc_nonsp_unlock_global(name)	_nc_unlock_global(name)
739 
740 #define _nc_sp_lock_global(name)	/* nothing */
741 #define _nc_sp_try_global(name)    0
742 #define _nc_sp_unlock_global(name)	/* nothing */
743 
744 #endif
745 
746 #if HAVE_CLOCK_GETTIME
747 # define PRECISE_GETTIME 1
748 # define GetClockTime(t) clock_gettime(CLOCK_REALTIME, t)
749 # define TimeType struct timespec
750 # define TimeScale 1000000000L		/* 1e9 */
751 # define sub_secs tv_nsec
752 #elif HAVE_GETTIMEOFDAY
753 # define PRECISE_GETTIME 1
754 # define GetClockTime(t) gettimeofday(t, 0)
755 # define TimeType struct timeval
756 # define TimeScale 1000000L		/* 1e6 */
757 # define sub_secs tv_usec
758 #else
759 # define PRECISE_GETTIME 0
760 # define TimeType time_t
761 #endif
762 
763 /*
764  * Definitions for color pairs
765  */
766 
767 #define MAX_OF_TYPE(t)   (int)(((unsigned t)(~0))>>1)
768 
769 #include <new_pair.h>
770 
771 #define isDefaultColor(c)	((c) < 0)
772 #define COLOR_DEFAULT		-1
773 
774 #if defined(USE_BUILD_CC) || (defined(USE_TERMLIB) && !defined(NEED_NCURSES_CH_T))
775 
776 #undef NCURSES_CH_T		/* this is not a termlib feature */
777 #define NCURSES_CH_T void	/* ...but we need a pointer in SCREEN */
778 
779 #endif	/* USE_TERMLIB */
780 
781 #ifndef USE_TERMLIB
782 struct ldat
783 {
784 	NCURSES_CH_T	*text;		/* text of the line */
785 	NCURSES_SIZE_T	firstchar;	/* first changed character in the line */
786 	NCURSES_SIZE_T	lastchar;	/* last changed character in the line */
787 	NCURSES_SIZE_T	oldindex;	/* index of the line at last update */
788 };
789 #endif	/* USE_TERMLIB */
790 
791 typedef enum {
792 	M_XTERM	= -1		/* use xterm's mouse tracking? */
793 	,M_NONE = 0		/* no mouse device */
794 #if USE_GPM_SUPPORT
795 	,M_GPM			/* use GPM */
796 #endif
797 #if USE_SYSMOUSE
798 	,M_SYSMOUSE		/* FreeBSD sysmouse on console */
799 #endif
800 #ifdef USE_TERM_DRIVER
801 	,M_TERM_DRIVER		/* Win32 console, etc */
802 #endif
803 } MouseType;
804 
805 typedef enum {
806     	MF_X10 = 0		/* conventional 3-byte format */
807 	, MF_SGR1006		/* xterm private mode 1006, SGR-style */
808 #ifdef EXP_XTERM_1005
809 	, MF_XTERM_1005		/* xterm UTF-8 private mode 1005 */
810 #endif
811 } MouseFormat;
812 
813 /*
814  * Structures for scrolling.
815  */
816 
817 typedef struct {
818 	unsigned long hashval;
819 	int oldcount, newcount;
820 	int oldindex, newindex;
821 } HASHMAP;
822 
823 /*
824  * Structures for soft labels.
825  */
826 
827 struct _SLK;
828 
829 #if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
830 
831 typedef struct
832 {
833 	char *ent_text;		/* text for the label */
834 	char *form_text;	/* formatted text (left/center/...) */
835 	int ent_x;		/* x coordinate of this field */
836 	char dirty;		/* this label has changed */
837 	char visible;		/* field is visible */
838 } slk_ent;
839 
840 typedef struct _SLK {
841 	bool    dirty;		/* all labels have changed */
842 	bool    hidden;		/* soft labels are hidden */
843 	WINDOW  *win;
844 	slk_ent *ent;
845 	short   maxlab;		/* number of available labels */
846 	short   labcnt;		/* number of allocated labels */
847 	short   maxlen;		/* length of labels */
848 	NCURSES_CH_T attr;	/* soft label attribute */
849 } SLK;
850 
851 #endif	/* USE_TERMLIB */
852 
853 #if USE_GPM_SUPPORT
854 #undef buttons			/* term.h defines this, and gpm uses it! */
855 #include <gpm.h>
856 #if USE_WEAK_SYMBOLS
857 weak_symbol(Gpm_Wgetch);
858 #endif
859 
860 #ifdef HAVE_LIBDL
861 /* link dynamically to GPM */
862 typedef int *TYPE_gpm_fd;
863 typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int);
864 typedef int (*TYPE_Gpm_Close) (void);
865 typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *);
866 
867 #define my_gpm_fd       SP_PARM->_mouse_gpm_fd
868 #define my_Gpm_Open     SP_PARM->_mouse_Gpm_Open
869 #define my_Gpm_Close    SP_PARM->_mouse_Gpm_Close
870 #define my_Gpm_GetEvent SP_PARM->_mouse_Gpm_GetEvent
871 #else
872 /* link statically to GPM */
873 #define my_gpm_fd       &gpm_fd
874 #define my_Gpm_Open     Gpm_Open
875 #define my_Gpm_Close    Gpm_Close
876 #define my_Gpm_GetEvent Gpm_GetEvent
877 #endif /* HAVE_LIBDL */
878 #endif /* USE_GPM_SUPPORT */
879 
880 /*
881  * When converting from terminfo to termcap, check for cases where we can trim
882  * octal escapes down to 2-character form.  It is useful for terminfo format
883  * also, but not as important.
884  */
885 #define MAX_TC_FIXUPS	10
886 #define MIN_TC_FIXUPS	4
887 
888 #define isoctal(c) ((c) >= '0' && (c) <= '7')
889 
890 /*
891  * The filesystem database normally uses a single-letter for the lower level
892  * of directories.  Use a hexadecimal code for filesystems which do not
893  * preserve mixed-case names.
894  */
895 #if MIXEDCASE_FILENAMES
896 #define LEAF_FMT "%c"
897 #define LEAF_LEN 1
898 #else
899 #define LEAF_FMT "%02x"
900 #define LEAF_LEN 2
901 #endif
902 
903 /*
904  * TRACEMSE_FMT is no longer than 80 columns, there are 5 numbers that
905  * could at most have 10 digits, and the mask contains no more than 32 bits
906  * with each bit representing less than 15 characters.  Usually the whole
907  * string is less than 80 columns, but this buffer size is an absolute
908  * limit.
909  */
910 #define TRACEMSE_MAX	(80 + (5 * 10) + (32 * 15))
911 #define TRACEMSE_FMT	"id %2d  at (%2d, %2d, %2d) state %4lx = {" /* } */
912 
913 #ifdef USE_TERM_DRIVER
914 struct DriverTCB; /* Terminal Control Block forward declaration */
915 #define INIT_TERM_DRIVER()	_nc_globals.term_driver = _nc_get_driver
916 #else
917 #define INIT_TERM_DRIVER()	/* nothing */
918 #endif
919 
920 extern NCURSES_EXPORT_VAR(NCURSES_GLOBALS) _nc_globals;
921 
922 /* The limit reserves one byte for a terminating NUL */
923 #define my_getstr_limit	(_nc_globals.getstr_limit - 1)
924 #define _nc_getstr_limit(n) \
925 	(((n) < 0) \
926 	 ? my_getstr_limit \
927 	 : (((n) > my_getstr_limit) \
928 	    ? my_getstr_limit \
929 	    : (n)))
930 
931 /*
932  * Use screen-specific ripoff data (for softkeys) rather than global.
933  */
934 #ifdef USE_SP_RIPOFF
935 #define safe_ripoff_sp     (sp)->rsp
936 #define safe_ripoff_stack  (sp)->rippedoff
937 #else
938 #define safe_ripoff_sp	   _nc_prescreen.rsp
939 #define safe_ripoff_stack  _nc_prescreen.rippedoff
940 #endif
941 
942 extern NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen;
943 
944 typedef enum {
945     ewInitial = 0,
946     ewRunning,
947     ewSuspend
948 } ENDWIN;
949 
950 typedef struct {
951 	int		_nl;		/* True if NL -> CR/NL is on	    */
952 	int		_raw;		/* True if in raw mode		    */
953 	int		_cbreak;	/* 1 if in cbreak mode		    */
954 					/* > 1 if in halfdelay mode	    */
955 	int		_echo;		/* True if echo on		    */
956 } TTY_FLAGS;
957 
958 #define IsNl(sp)        (sp)->_tty_flags._nl
959 #define IsRaw(sp)       (sp)->_tty_flags._raw
960 #define IsCbreak(sp)    (sp)->_tty_flags._cbreak
961 #define IsEcho(sp)      (sp)->_tty_flags._echo
962 
963 /*
964  * The SCREEN structure.
965  */
966 typedef struct screen {
967 	int		_ifd;		/* input file descriptor for screen */
968 	int		_ofd;		/* output file descriptor for screen */
969 	FILE		*_ofp;		/* output file ptr for screen	    */
970 	char		*out_buffer;	/* output buffer		    */
971 	size_t		out_limit;	/* output buffer size		    */
972 	size_t		out_inuse;	/* output buffer current use	    */
973 	bool		_filtered;	/* filter() was called		    */
974 	bool		_prescreen;	/* is in prescreen phase	    */
975 	bool		_use_env;	/* LINES & COLS from environment?   */
976 	int		_checkfd;	/* filedesc for typeahead check	    */
977 	TERMINAL	*_term;		/* terminal type information	    */
978 	TTY		_saved_tty;	/* savetty/resetty information	    */
979 	NCURSES_SIZE_T	_lines;		/* screen lines			    */
980 	NCURSES_SIZE_T	_columns;	/* screen columns		    */
981 
982 	NCURSES_SIZE_T	_lines_avail;	/* lines available for stdscr	    */
983 	NCURSES_SIZE_T	_topstolen;	/* lines stolen from top	    */
984 
985 	WINDOW		*_curscr;	/* current screen		    */
986 	WINDOW		*_newscr;	/* virtual screen to be updated to  */
987 	WINDOW		*_stdscr;	/* screen's full-window context	    */
988 
989 #define CurScreen(sp)  (sp)->_curscr
990 #define NewScreen(sp)  (sp)->_newscr
991 #define StdScreen(sp)  (sp)->_stdscr
992 
993 	TRIES		*_keytry;	/* "Try" for use with keypad mode   */
994 	TRIES		*_key_ok;	/* Disabled keys via keyok(,FALSE)  */
995 	bool		_tried;		/* keypad mode was initialized	    */
996 	bool		_keypad_on;	/* keypad mode is currently on	    */
997 
998 	bool		_called_wgetch;	/* check for recursion in wgetch()  */
999 	int		_fifo[FIFO_SIZE];	/* input push-back buffer   */
1000 	short		_fifohead,	/* head of fifo queue		    */
1001 			_fifotail,	/* tail of fifo queue		    */
1002 			_fifopeek,	/* where to peek for next char	    */
1003 			_fifohold;	/* set if breakout marked	    */
1004 
1005 	int		_endwin;	/* are we out of window mode?	    */
1006 	NCURSES_CH_T	*_current_attr; /* holds current attributes set	    */
1007 	int		_coloron;	/* is color enabled?		    */
1008 	int		_color_defs;	/* are colors modified		    */
1009 	int		_cursor;	/* visibility of the cursor	    */
1010 	int		_cursrow;	/* physical cursor row		    */
1011 	int		_curscol;	/* physical cursor column	    */
1012 	bool		_notty;		/* true if we cannot switch non-tty */
1013 	TTY_FLAGS	_tty_flags;
1014 	int		_use_meta;	/* use the meta key?		    */
1015 	struct _SLK	*_slk;		/* ptr to soft key struct / NULL    */
1016 	int		slk_format;	/* selected format for this screen  */
1017 	/* cursor movement costs; units are 10ths of milliseconds */
1018 	int		_char_padding;	/* cost of character put	    */
1019 	int		_cr_cost;	/* cost of (carriage_return)	    */
1020 	int		_cup_cost;	/* cost of (cursor_address)	    */
1021 	int		_home_cost;	/* cost of (cursor_home)	    */
1022 	int		_ll_cost;	/* cost of (cursor_to_ll)	    */
1023 	int		_cub1_cost;	/* cost of (cursor_left)	    */
1024 	int		_cuf1_cost;	/* cost of (cursor_right)	    */
1025 	int		_cud1_cost;	/* cost of (cursor_down)	    */
1026 	int		_cuu1_cost;	/* cost of (cursor_up)		    */
1027 	int		_cub_cost;	/* cost of (parm_cursor_left)	    */
1028 	int		_cuf_cost;	/* cost of (parm_cursor_right)	    */
1029 	int		_cud_cost;	/* cost of (parm_cursor_down)	    */
1030 	int		_cuu_cost;	/* cost of (parm_cursor_up)	    */
1031 	int		_hpa_cost;	/* cost of (column_address)	    */
1032 	int		_vpa_cost;	/* cost of (row_address)	    */
1033 	/* used in tty_update.c, must be chars */
1034 	int		_ed_cost;	/* cost of (clr_eos)		    */
1035 	int		_el_cost;	/* cost of (clr_eol)		    */
1036 	int		_el1_cost;	/* cost of (clr_bol)		    */
1037 	int		_dch1_cost;	/* cost of (delete_character)	    */
1038 	int		_ich1_cost;	/* cost of (insert_character)	    */
1039 	int		_dch_cost;	/* cost of (parm_dch)		    */
1040 	int		_ich_cost;	/* cost of (parm_ich)		    */
1041 	int		_ech_cost;	/* cost of (erase_chars)	    */
1042 	int		_rep_cost;	/* cost of (repeat_char)	    */
1043 	int		_hpa_ch_cost;	/* cost of (column_address)	    */
1044 	int		_cup_ch_cost;	/* cost of (cursor_address)	    */
1045 	int		_cuf_ch_cost;	/* cost of (parm_cursor_right)	    */
1046 	int		_inline_cost;	/* cost of inline-move		    */
1047 	int		_smir_cost;	/* cost of (enter_insert_mode)	    */
1048 	int		_rmir_cost;	/* cost of (exit_insert_mode)	    */
1049 	int		_ip_cost;	/* cost of (insert_padding)	    */
1050 	/* used in lib_mvcur.c */
1051 	char *		_address_cursor;
1052 	/* used in tty_update.c */
1053 	int		_scrolling;	/* 1 if terminal's smart enough to  */
1054 
1055 	/* used in lib_color.c */
1056 	rgb_bits_t	_direct_color;	/* RGB overrides color-table	     */
1057 	color_t		*_color_table;	/* screen's color palette	     */
1058 	int		_color_count;	/* count of colors in palette	     */
1059 	colorpair_t	*_color_pairs;	/* screen's color pair list	     */
1060 	int		_pair_count;	/* same as COLOR_PAIRS               */
1061 	int		_pair_limit;	/* actual limit of color-pairs       */
1062 	int		_pair_alloc;	/* current table-size of color-pairs */
1063 	chtype		_ok_attributes; /* valid attributes for terminal     */
1064 	chtype		_xmc_suppress;	/* attributes to suppress if xmc     */
1065 	chtype		_xmc_triggers;	/* attributes to process if xmc	     */
1066 	chtype *	_acs_map;	/* the real alternate-charset map    */
1067 	bool *		_screen_acs_map;
1068 
1069 
1070 	/* used in lib_vidattr.c */
1071 	bool		_use_rmso;	/* true if we may use 'rmso'	     */
1072 	bool		_use_rmul;	/* true if we may use 'rmul'	     */
1073 
1074 	/*
1075 	 * These data correspond to the state of the idcok() and idlok()
1076 	 * functions.  A caveat is in order here:  the XSI and SVr4
1077 	 * documentation specify that these functions apply to the window which
1078 	 * is given as an argument.  However, ncurses implements this logic
1079 	 * only for the newscr/curscr update process, _not_ per-window.
1080 	 */
1081 	bool		_nc_sp_idlok;
1082 	bool		_nc_sp_idcok;
1083 
1084 	/*
1085 	 * These are the data that support the mouse interface.
1086 	 */
1087 	bool		_mouse_initialized;
1088 	MouseType	_mouse_type;
1089 	int		_maxclick;
1090 	bool		(*_mouse_event) (SCREEN *);
1091 	bool		(*_mouse_inline)(SCREEN *);
1092 	bool		(*_mouse_parse) (SCREEN *, int);
1093 	void		(*_mouse_resume)(SCREEN *);
1094 	void		(*_mouse_wrap)	(SCREEN *);
1095 	int		_mouse_fd;	/* file-descriptor, if any */
1096 	bool		_mouse_active;	/* true if initialized */
1097 	mmask_t		_mouse_mask;	/* set via mousemask() */
1098 	mmask_t		_mouse_mask2;	/* OR's in press/release bits */
1099 	mmask_t		_mouse_bstate;
1100 	MouseFormat	_mouse_format;	/* type of xterm mouse protocol */
1101 	NCURSES_CONST char *_mouse_xtermcap; /* string to enable/disable mouse */
1102 	MEVENT		_mouse_events[EV_MAX];	/* hold the last mouse event seen */
1103 	MEVENT		*_mouse_eventp;	/* next free slot in event queue */
1104 
1105 	/*
1106 	 * These are data that support the proper handling of the panel stack on an
1107 	 * per screen basis.
1108 	 */
1109 	struct panelhook _panelHook;
1110 
1111 	bool		_sig_winch;
1112 	SCREEN		*_next_screen;
1113 
1114 	/* hashes for old and new lines */
1115 	unsigned long	*oldhash, *newhash;
1116 	HASHMAP		*hashtab;
1117 	int		hashtab_len;
1118 	int		*_oldnum_list;
1119 	int		_oldnum_size;
1120 
1121 	NCURSES_SP_OUTC	_outch;		/* output handler if not putc */
1122 	NCURSES_OUTC	jump;
1123 
1124 	ripoff_t	rippedoff[N_RIPS];
1125 	ripoff_t	*rsp;
1126 
1127 	int		_legacy_coding;	/* see use_legacy_coding() */
1128 
1129 #if NCURSES_NO_PADDING
1130 	bool		_no_padding;	/* flag to set if padding disabled  */
1131 #endif
1132 
1133 #if USE_HARD_TABS
1134 	int		_ht_cost;	/* cost of (tab)		    */
1135 	int		_cbt_cost;	/* cost of (backtab)		    */
1136 #endif /* USE_HARD_TABS */
1137 
1138 	/* used in lib_vidattr.c */
1139 #if USE_ITALIC
1140 	bool		_use_ritm;	/* true if we may use 'ritm'	     */
1141 #endif
1142 
1143 	/* used in getch/twait */
1144 #if USE_KLIBC_KBD
1145 	bool		_extended_key;	/* true if an extended key	     */
1146 #endif
1147 
1148 	/* used in lib_color.c */
1149 #if NCURSES_EXT_FUNCS
1150 	bool		_assumed_color; /* use assumed colors		     */
1151 	bool		_default_color; /* use default colors		     */
1152 	bool		_has_sgr_39_49; /* has ECMA default color support    */
1153 	int		_default_fg;	/* assumed default foreground	     */
1154 	int		_default_bg;	/* assumed default background	     */
1155 	int		_default_pairs;	/* count pairs using default color   */
1156 #endif
1157 
1158 	/* system-dependent mouse data */
1159 #if USE_GPM_SUPPORT
1160 	bool		_mouse_gpm_loaded;
1161 	bool		_mouse_gpm_found;
1162 #ifdef HAVE_LIBDL
1163 	void		*_dlopen_gpm;
1164 	TYPE_gpm_fd	_mouse_gpm_fd;
1165 	TYPE_Gpm_Open	_mouse_Gpm_Open;
1166 	TYPE_Gpm_Close	_mouse_Gpm_Close;
1167 	TYPE_Gpm_GetEvent _mouse_Gpm_GetEvent;
1168 #endif
1169 	Gpm_Connect	_mouse_gpm_connect;
1170 #endif /* USE_GPM_SUPPORT */
1171 
1172 #if USE_EMX_MOUSE
1173 	int		_emxmouse_wfd;
1174 	int		_emxmouse_thread;
1175 	int		_emxmouse_activated;
1176 	char		_emxmouse_buttons[4];
1177 #endif
1178 
1179 #if USE_SYSMOUSE
1180 	MEVENT		_sysmouse_fifo[FIFO_SIZE];
1181 	int		_sysmouse_head;
1182 	int		_sysmouse_tail;
1183 	int		_sysmouse_char_width;	/* character width */
1184 	int		_sysmouse_char_height;	/* character height */
1185 	int		_sysmouse_old_buttons;
1186 	int		_sysmouse_new_buttons;
1187 #endif
1188 
1189 #if defined(USE_TERM_DRIVER) || defined(EXP_WIN32_DRIVER)
1190 	MEVENT		_drv_mouse_fifo[FIFO_SIZE];
1191 	int		_drv_mouse_head;
1192 	int		_drv_mouse_tail;
1193 	int		_drv_mouse_old_buttons;
1194 	int		_drv_mouse_new_buttons;
1195 #endif
1196 	/*
1197 	 * This supports automatic resizing
1198 	 */
1199 #if USE_SIZECHANGE
1200 	int		(*_resize)(NCURSES_SP_DCLx int y, int x);
1201 	int		(*_ungetch)(SCREEN *, int);
1202 #endif
1203 
1204 #ifdef USE_SP_WINDOWLIST
1205 	WINDOWLIST*	_windowlist;
1206 #define WindowList(sp)  (sp)->_windowlist
1207 #endif
1208 
1209 #if USE_REENTRANT
1210 	char		_ttytype[NAMESIZE];
1211 	int		_ESCDELAY;
1212 	int		_TABSIZE;
1213 	int		_LINES;
1214 	int		_COLS;
1215 #endif
1216 
1217 #if NCURSES_SP_FUNCS
1218 	bool		use_tioctl;
1219 #endif
1220 
1221 	/*
1222 	 * ncurses/ncursesw are the same up to this point.
1223 	 */
1224 #if USE_WIDEC_SUPPORT
1225 	/* recent versions of 'screen' have partially-working support for
1226 	 * UTF-8, but do not permit ACS at the same time (see tty_update.c).
1227 	 */
1228 	bool		_screen_acs_fix;
1229 	bool		_screen_unicode;
1230 #endif
1231 
1232 #if NCURSES_EXT_FUNCS && NCURSES_EXT_COLORS
1233 	void		*_ordered_pairs; /* index used by alloc_pair()	     */
1234 	int		_pairs_used;	/* actual number of color-pairs used */
1235 	int		_recent_pair;	/* number for most recent free-pair  */
1236 #endif
1237 
1238 #ifdef TRACE
1239 	char		tracechr_buf[40];
1240 	char		tracemse_buf[TRACEMSE_MAX];
1241 #if USE_REENTRANT
1242 	long		_outchars;
1243 	const char	*_tputs_trace;
1244 #endif
1245 #endif
1246 #undef SCREEN
1247 } SCREEN;
1248 
1249 extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain;
1250 extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
1251 
1252 	WINDOWLIST {
1253 	WINDOWLIST *next;
1254 	SCREEN *screen;		/* screen containing the window */
1255 	WINDOW	win;		/* WINDOW_EXT() needs to account for offset */
1256 #if NCURSES_WIDECHAR
1257 	char addch_work[(MB_LEN_MAX * 9) + 1];
1258 	unsigned addch_used;	/* number of bytes in addch_work[] */
1259 	int addch_x;		/* x-position for addch_work[] */
1260 	int addch_y;		/* y-position for addch_work[] */
1261 #endif
1262 };
1263 
1264 #define WINDOW_EXT(w,m) (((WINDOWLIST *)((void *)((char *)(w) - offsetof(WINDOWLIST, win))))->m)
1265 
1266 #ifdef USE_SP_WINDOWLIST
1267 #define SP_INIT_WINDOWLIST(sp)	WindowList(sp) = 0
1268 #else
1269 #define SP_INIT_WINDOWLIST(sp)	/* nothing */
1270 #endif
1271 
1272 #define SP_PRE_INIT(sp)                         \
1273     sp->_cursrow           = -1;                \
1274     sp->_curscol           = -1;                \
1275     IsNl(sp)               = TRUE;              \
1276     IsRaw(sp)              = FALSE;             \
1277     IsCbreak(sp)           = 0;                 \
1278     IsEcho(sp)             = TRUE;              \
1279     sp->_fifohead          = -1;                \
1280     sp->_endwin            = ewSuspend;         \
1281     sp->_cursor            = -1;                \
1282     SP_INIT_WINDOWLIST(sp);                     \
1283     sp->_outch             = NCURSES_OUTC_FUNC; \
1284     sp->jump               = 0                  \
1285 
1286 /* usually in <limits.h> */
1287 #ifndef UCHAR_MAX
1288 #define UCHAR_MAX 255
1289 #endif
1290 
1291 /* The terminfo source is assumed to be 7-bit ASCII */
1292 #define is7bits(c)	((unsigned)(c) < 128)
1293 
1294 /* Checks for isprint() should be done on 8-bit characters (non-wide) */
1295 #define is8bits(c)	((unsigned)(c) <= UCHAR_MAX)
1296 
1297 #ifndef min
1298 #define min(a,b)	((a) > (b)  ?  (b)  :  (a))
1299 #endif
1300 
1301 #ifndef max
1302 #define max(a,b)	((a) < (b)  ?  (b)  :  (a))
1303 #endif
1304 
1305 /* usually in <unistd.h> */
1306 #ifndef STDIN_FILENO
1307 #define STDIN_FILENO 0
1308 #endif
1309 
1310 #ifndef STDOUT_FILENO
1311 #define STDOUT_FILENO 1
1312 #endif
1313 
1314 #ifndef STDERR_FILENO
1315 #define STDERR_FILENO 2
1316 #endif
1317 
1318 #ifndef EXIT_SUCCESS
1319 #define EXIT_SUCCESS 0
1320 #endif
1321 
1322 #ifndef EXIT_FAILURE
1323 #define EXIT_FAILURE 1
1324 #endif
1325 
1326 #ifndef R_OK
1327 #define	R_OK	4		/* Test for read permission.  */
1328 #endif
1329 #ifndef W_OK
1330 #define	W_OK	2		/* Test for write permission.  */
1331 #endif
1332 #ifndef X_OK
1333 #define	X_OK	1		/* Test for execute permission.  */
1334 #endif
1335 #ifndef F_OK
1336 #define	F_OK	0		/* Test for existence.  */
1337 #endif
1338 
1339 #if HAVE_FCNTL_H
1340 #include <fcntl.h>		/* may define O_BINARY	*/
1341 #endif
1342 
1343 #ifndef O_BINARY
1344 #define O_BINARY 0
1345 #endif
1346 
1347 #ifdef TRACE
1348 #if USE_REENTRANT
1349 #define COUNT_OUTCHARS(n) _nc_count_outchars(n);
1350 #else
1351 #define COUNT_OUTCHARS(n) _nc_outchars += (n);
1352 #endif
1353 #else
1354 #define COUNT_OUTCHARS(n) /* nothing */
1355 #endif
1356 
1357 #define RESET_OUTCHARS() COUNT_OUTCHARS(-_nc_outchars)
1358 
1359 #define UChar(c)	((unsigned char)(c))
1360 #define UShort(c)	((unsigned short)(c))
1361 #define ChCharOf(c)	((chtype)(c) & (chtype)A_CHARTEXT)
1362 #define ChAttrOf(c)	((chtype)(c) & (chtype)A_ATTRIBUTES)
1363 
1364 #define TR_PUTC(c)	TR(TRACE_CHARPUT, ("PUTC %#x", UChar(c)))
1365 
1366 #ifndef MB_LEN_MAX
1367 #define MB_LEN_MAX 16	/* should be >= MB_CUR_MAX, but that may be a function */
1368 #endif
1369 
1370 #if USE_WIDEC_SUPPORT /* { */
1371 /* true if the status/errno indicate an illegal multibyte sequence */
1372 #define isEILSEQ(status) (((size_t)status == (size_t)-1) && (errno == EILSEQ))
1373 
1374 #define init_mb(state)	memset(&(state), 0, sizeof(state))
1375 
1376 #if NCURSES_EXT_COLORS
1377 #define NulColor	, 0
1378 #else
1379 #define NulColor	/* nothing */
1380 #endif
1381 
1382 #define NulChar		0,0,0,0	/* FIXME: see CCHARW_MAX */
1383 #define CharOf(c)	((c).chars[0])
1384 #define AttrOf(c)	((c).attr)
1385 
1386 #define AddAttr(c,a)	AttrOf(c) |=  ((a) & A_ATTRIBUTES)
1387 #define RemAttr(c,a)	AttrOf(c) &= ~((a) & A_ATTRIBUTES)
1388 #define SetAttr(c,a)	AttrOf(c) =   ((a) & A_ATTRIBUTES) | WidecExt(c)
1389 
1390 #define NewChar2(c,a)	{ a, { c, NulChar } NulColor }
1391 #define NewChar(ch)	NewChar2(ChCharOf(ch), ChAttrOf(ch))
1392 
1393 #if CCHARW_MAX == 5
1394 #define CharEq(a,b)	(((a).attr == (b).attr) \
1395 		       && (a).chars[0] == (b).chars[0] \
1396 		       && (a).chars[1] == (b).chars[1] \
1397 		       && (a).chars[2] == (b).chars[2] \
1398 		       && (a).chars[3] == (b).chars[3] \
1399 		       && (a).chars[4] == (b).chars[4] \
1400 			if_EXT_COLORS(&& (a).ext_color == (b).ext_color))
1401 #elif CCHARW_MAX > 0
1402 #error Inconsistent values for CCHARW_MAX
1403 #else
1404 #define CharEq(a,b)	(!memcmp(&(a), &(b), sizeof(a)))
1405 #endif
1406 
1407 #define SetChar(ch,c,a) do {							    \
1408 			    NCURSES_CH_T *_cp = &(ch);				    \
1409 			    memset(_cp, 0, sizeof(ch));				    \
1410 			    _cp->chars[0] = (wchar_t) (c);			    \
1411 			    _cp->attr = (a);					    \
1412 			    if_EXT_COLORS(SetPair(ch, PairNumber(a)));		    \
1413 			} while (0)
1414 #define CHREF(wch)	(&(wch))
1415 #define CHDEREF(wch)	(*(wch))
1416 #define ARG_CH_T	NCURSES_CH_T *
1417 #define CARG_CH_T	const NCURSES_CH_T *
1418 #define PUTC_DATA	char PUTC_buf[MB_LEN_MAX]; int PUTC_i, PUTC_n; \
1419 			mbstate_t PUT_st; wchar_t PUTC_ch
1420 #define PUTC_INIT	init_mb (PUT_st)
1421 #define PUTC(ch)	do { if(!isWidecExt(ch)) {				    \
1422 			if (Charable(ch)) {					    \
1423 			    TR_PUTC(CharOf(ch));				    \
1424 			    NCURSES_OUTC_FUNC (NCURSES_SP_ARGx CharOf(ch));	    \
1425 			    COUNT_OUTCHARS(1);					    \
1426 			} else {						    \
1427 			    for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {	    \
1428 				PUTC_ch = (ch).chars[PUTC_i];			    \
1429 				if (PUTC_ch == L'\0')				    \
1430 				    break;					    \
1431 				PUTC_INIT;					    \
1432 				PUTC_n = (int) wcrtomb(PUTC_buf,		    \
1433 						       (ch).chars[PUTC_i], &PUT_st); \
1434 				if (PUTC_n <= 0) {				    \
1435 				    if (PUTC_ch && is8bits(PUTC_ch) && PUTC_i == 0) { \
1436 					TR_PUTC(CharOf(ch));			    \
1437 					NCURSES_OUTC_FUNC (NCURSES_SP_ARGx CharOf(ch)); \
1438 				    }						    \
1439 				    break;					    \
1440 				} else {					    \
1441 				    int PUTC_j;					    \
1442 				    for (PUTC_j = 0; PUTC_j < PUTC_n; ++PUTC_j) {   \
1443 					TR_PUTC(PUTC_buf[PUTC_j]);		    \
1444 					NCURSES_OUTC_FUNC (NCURSES_SP_ARGx PUTC_buf[PUTC_j]); \
1445 				    }						    \
1446 				}						    \
1447 			    }							    \
1448 			    COUNT_OUTCHARS(PUTC_i);				    \
1449 			} } } while (0)
1450 
1451 #define BLANK		NewChar2(' ', WA_NORMAL)
1452 #define ZEROS		NewChar2('\0', WA_NORMAL)
1453 #define ISBLANK(ch)	((ch).chars[0] == L' ' && (ch).chars[1] == L'\0')
1454 
1455 	/*
1456 	 * Wide characters cannot be represented in the A_CHARTEXT mask of
1457 	 * attr_t's but an application might have set a narrow character there.
1458 	 * But even in that case, it would only be a printable character, or
1459 	 * zero.  Otherwise we can use those bits to tell if a cell is the
1460 	 * first or extension part of a wide character.
1461 	 */
1462 #define WidecExt(ch)	(int) (AttrOf(ch) & A_CHARTEXT)
1463 #define isWidecBase(ch)	(WidecExt(ch) == 1)
1464 #define isWidecExt(ch)	(WidecExt(ch) > 1 && WidecExt(ch) < 32)
1465 #define SetWidecExt(dst, ext)	AttrOf(dst) &= ~A_CHARTEXT,		\
1466 				AttrOf(dst) |= (attr_t) (ext + 1)
1467 
1468 #define if_WIDEC(code)  code
1469 #define Charable(ch)	(((SP_PARM->_legacy_coding)			\
1470 			 || (AttrOf(ch) & A_ALTCHARSET)			\
1471 			 || (!isWidecExt(ch))) &&			\
1472 			     (ch).chars[1] == L'\0' &&			\
1473 			     _nc_is_charable(CharOf(ch)))
1474 
1475 #define L(ch)		L ## ch
1476 #else /* }{ */
1477 #define CharOf(c)	ChCharOf(c)
1478 #define AttrOf(c)	ChAttrOf(c)
1479 #define AddAttr(c,a)	c |= (a)
1480 #define RemAttr(c,a)	c &= ~((a) & A_ATTRIBUTES)
1481 #define SetAttr(c,a)	c = ((c) & ~A_ATTRIBUTES) | (a)
1482 #define NewChar(ch)	(ch)
1483 #define NewChar2(c,a)	((c) | (a))
1484 #define CharEq(a,b)	((a) == (b))
1485 #define SetChar(ch,c,a)	ch = (c) | (a)
1486 #define CHREF(wch)	wch
1487 #define CHDEREF(wch)	wch
1488 #define ARG_CH_T	NCURSES_CH_T
1489 #define CARG_CH_T	NCURSES_CH_T
1490 #define PUTC_DATA	/* nothing */
1491 #define PUTC(ch)	{ \
1492 			    TR_PUTC(ch); \
1493 			    NCURSES_OUTC_FUNC (NCURSES_SP_ARGx (int) ch); \
1494 			}
1495 
1496 #define BLANK		(' '|A_NORMAL)
1497 #define ZEROS		('\0'|A_NORMAL)
1498 #define ISBLANK(ch)	(CharOf(ch) == ' ')
1499 
1500 #define isWidecExt(ch)	(0)
1501 #define if_WIDEC(code) /* nothing */
1502 
1503 #define Charable(ch)	(CharOf(ch) >= ' ' && CharOf(ch) <= '~')
1504 #define L(ch)		ch
1505 #endif /* } */
1506 
1507 #define AttrOfD(ch)	AttrOf(CHDEREF(ch))
1508 #define CharOfD(ch)	CharOf(CHDEREF(ch))
1509 #define SetChar2(wch,ch)    SetChar(wch,ChCharOf(ch),ChAttrOf(ch))
1510 
1511 #define BLANK_ATTR	A_NORMAL
1512 #define BLANK_TEXT	L(' ')
1513 
1514 #define CHANGED     -1
1515 
1516 #define LEGALYX(w, y, x) \
1517 	      ((w) != 0 && \
1518 		((x) >= 0 && (x) <= (w)->_maxx && \
1519 		 (y) >= 0 && (y) <= (w)->_maxy))
1520 
1521 #define CHANGED_CELL(line,col) \
1522 	if (line->firstchar == _NOCHANGE) \
1523 		line->firstchar = line->lastchar = (NCURSES_SIZE_T) (col); \
1524 	else if ((col) < line->firstchar) \
1525 		line->firstchar = (NCURSES_SIZE_T) (col); \
1526 	else if ((col) > line->lastchar) \
1527 		line->lastchar = (NCURSES_SIZE_T) (col)
1528 
1529 #define CHANGED_RANGE(line,start,end) \
1530 	if (line->firstchar == _NOCHANGE \
1531 	 || line->firstchar > (start)) \
1532 		line->firstchar = (NCURSES_SIZE_T) (start); \
1533 	if (line->lastchar == _NOCHANGE \
1534 	 || line->lastchar < (end)) \
1535 		line->lastchar = (NCURSES_SIZE_T) (end)
1536 
1537 #define CHANGED_TO_EOL(line,start,end) \
1538 	if (line->firstchar == _NOCHANGE \
1539 	 || line->firstchar > (start)) \
1540 		line->firstchar = (NCURSES_SIZE_T) (start); \
1541 	line->lastchar = (NCURSES_SIZE_T) (end)
1542 
1543 #define SIZEOF(v) (sizeof(v)/sizeof(v[0]))
1544 
1545 #include <nc_alloc.h>
1546 #include <nc_access.h>
1547 
1548 #define FreeIfNeeded(p)  if ((p) != 0) free(p)
1549 
1550 /* FreeAndNull() is not a comma-separated expression because some compilers
1551  * do not accept a mixture of void with values.
1552  */
1553 #define FreeAndNull(p)   do { free(p); p = 0; } while (0)
1554 
1555 #ifdef EXP_OOM_TESTING
1556 extern NCURSES_EXPORT(void *)	_nc_oom_malloc(size_t size);
1557 extern NCURSES_EXPORT(void *)	_nc_oom_calloc(size_t nmemb, size_t size);
1558 extern NCURSES_EXPORT(void *)	_nc_oom_realloc(void *ptr, size_t size);
1559 extern NCURSES_EXPORT(void)	_nc_oom_free(void *ptr);
1560 extern NCURSES_EXPORT(char *)	_nc_oom_strdup(const char *ptr);
1561 #define malloc(size)		_nc_oom_malloc(size)
1562 #define calloc(nmemb, size)	_nc_oom_calloc(nmemb, size)
1563 #define realloc(ptr, size)	_nc_oom_realloc(ptr, size)
1564 #define free(ptr)		_nc_oom_free(ptr)
1565 #define strdup(ptr)		_nc_oom_strdup(ptr)
1566 #endif
1567 
1568 /*
1569  * Use these for tic/infocmp malloc failures.  Generally the ncurses library
1570  * tries to limp along after a failure.
1571  */
1572 #define TYPE_MALLOC(type, size, name) \
1573 	do { \
1574 	    name = typeMalloc(type, size); \
1575 	    if (name == 0) \
1576 		_nc_err_abort(MSG_NO_MEMORY); \
1577 	} while (0)
1578 
1579 #define TYPE_CALLOC(type, size, name) \
1580 	do { \
1581 	    name = typeCalloc(type, size); \
1582 	    if (name == 0) \
1583 		_nc_err_abort(MSG_NO_MEMORY); \
1584 	} while (0)
1585 
1586 #define TYPE_REALLOC(type, size, name) \
1587 	do { \
1588 	    name = typeRealloc(type, size, name); \
1589 	    if (name == 0) \
1590 		_nc_err_abort(MSG_NO_MEMORY); \
1591 	} while (0)
1592 
1593 /*
1594  * TTY bit definition for converting tabs to spaces.
1595  */
1596 #ifdef TAB3
1597 # define OFLAGS_TABS TAB3	/* POSIX specifies TAB3 */
1598 #else
1599 # ifdef XTABS
1600 #  define OFLAGS_TABS XTABS	/* XTABS is usually the "same" */
1601 # else
1602 #  ifdef OXTABS
1603 #   define OFLAGS_TABS OXTABS	/* the traditional BSD equivalent */
1604 #  else
1605 #   define OFLAGS_TABS 0
1606 #  endif
1607 # endif
1608 #endif
1609 
1610 #ifdef __TANDEM
1611 #define ROOT_UID 65535
1612 #endif
1613 
1614 #ifndef ROOT_UID
1615 #define ROOT_UID 0
1616 #endif
1617 
1618 /*
1619  * Standardize/simplify common loops
1620  */
1621 #define each_screen(p) p = _nc_screen_chain; p != 0; p = (p)->_next_screen
1622 #define each_window(sp,p) p = WindowList(sp); p != 0; p = (p)->next
1623 #define each_ripoff(p) p = safe_ripoff_stack; (p - safe_ripoff_stack) < N_RIPS; ++p
1624 
1625 /*
1626  * Prefixes for call/return points of library function traces.  We use these to
1627  * instrument the public functions so that the traces can be easily transformed
1628  * into regression scripts.
1629  */
1630 #define T_CALLED(fmt) "called {" fmt
1631 #define T_CREATE(fmt) "create :" fmt
1632 #define T_RETURN(fmt) "return }" fmt
1633 
1634 #define NonNull(s)              ((s) != 0 ? s : "<null>")
1635 #define NonEmpty(s)             ((s) != 0 && *(s) != '\0')
1636 
1637 #ifdef TRACE
1638 
1639 #if USE_REENTRANT
1640 #define TPUTS_TRACE(s)	_nc_set_tputs_trace(s);
1641 #else
1642 #define TPUTS_TRACE(s)	_nc_tputs_trace = s;
1643 #endif
1644 
1645 #ifdef HAVE_CONSISTENT_GETENV
1646 #define START_TRACE() \
1647 	if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \
1648 	    int t = _nc_getenv_num("NCURSES_TRACE"); \
1649 	    if (t >= 0) \
1650 		curses_trace((unsigned) t); \
1651 	}
1652 #else
1653 #define START_TRACE() /* nothing */
1654 #endif
1655 
1656 /*
1657  * Many of the _tracef() calls use static buffers; lock the trace state before
1658  * trying to fill them.
1659  */
1660 #if USE_REENTRANT
1661 #define USE_TRACEF(mask) _nc_use_tracef(mask)
1662 extern NCURSES_EXPORT(int)	_nc_use_tracef (unsigned);
1663 extern NCURSES_EXPORT(void)	_nc_locked_tracef (const char *, ...) GCC_PRINTFLIKE(1,2);
1664 #else
1665 #define USE_TRACEF(mask) (_nc_tracing & (mask))
1666 #define _nc_locked_tracef _tracef
1667 #endif
1668 
1669 #define TR(n, a)	if (USE_TRACEF(n)) _nc_locked_tracef a
1670 #define T(a)		TR(TRACE_CALLS, a)
1671 #define TRACE_RETURN(value,type)     return _nc_retrace_##type((type)(value))
1672 #define TRACE_RETURN1(value,dst)     return _nc_retrace_##dst(value)
1673 #define TRACE_RETURN2(value,dst,src) return _nc_retrace_##dst##_##src(value)
1674 #define TRACE_RETURN_SP(value,type)  return _nc_retrace_##type(SP_PARM, value)
1675 
1676 typedef void VoidFunc(void);
1677 
1678 #define TR_FUNC_LEN		((sizeof(void *) + sizeof(void (*)(void))) * 2 + 4)
1679 #define TR_FUNC_BFR(max)	char tr_func_data[max][TR_FUNC_LEN]
1680 #define TR_FUNC_ARG(num,func)	_nc_fmt_funcptr(&tr_func_data[num][0], (const char *)&(func), sizeof((func)))
1681 
1682 #define returnAttr(code)	TRACE_RETURN(code,attr_t)
1683 #define returnBits(code)	TRACE_RETURN(code,unsigned)
1684 #define returnBool(code)	TRACE_RETURN(code,bool)
1685 #define returnCPtr(code)	TRACE_RETURN1(code,cptr)
1686 #define returnCVoidPtr(code)	TRACE_RETURN1(code,cvoid_ptr)
1687 #define returnChar(code)	TRACE_RETURN(code,char)
1688 #define returnChtype(code)	TRACE_RETURN(code,chtype)
1689 #define returnCode(code)	TRACE_RETURN(code,int)
1690 #define returnIntAttr(code)	TRACE_RETURN2(code,int,attr_t)
1691 #define returnMMask(code)	TRACE_RETURN_SP(code,mmask_t)
1692 #define returnPtr(code)		TRACE_RETURN1(code,ptr)
1693 #define returnSP(code)		TRACE_RETURN1(code,sp)
1694 #define returnVoid		{ T((T_RETURN(""))); return; }
1695 #define returnVoidPtr(code)	TRACE_RETURN1(code,void_ptr)
1696 #define returnWin(code)		TRACE_RETURN1(code,win)
1697 
1698 #define returnDB(rc)		do { TR(TRACE_DATABASE,(T_RETURN("code %d"), (rc))); return (rc); } while (0)
1699 #define returnPtrDB(rc)		do { TR(TRACE_DATABASE,(T_RETURN("%p"), (rc))); return (rc); } while (0)
1700 #define returnVoidDB		do { TR(TRACE_DATABASE,(T_RETURN(""))); return; } while (0)
1701 
1702 extern NCURSES_EXPORT(NCURSES_BOOL)     _nc_retrace_bool (int);
1703 extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *);
1704 extern NCURSES_EXPORT(SCREEN *)         _nc_retrace_sp (SCREEN *);
1705 extern NCURSES_EXPORT(WINDOW *)         _nc_retrace_win (WINDOW *);
1706 extern NCURSES_EXPORT(attr_t)           _nc_retrace_attr_t (attr_t);
1707 extern NCURSES_EXPORT(char *)           _nc_retrace_ptr (char *);
1708 extern NCURSES_EXPORT(char *)           _nc_trace_ttymode(const TTY *tty);
1709 extern NCURSES_EXPORT(char *)           _nc_varargs (const char *, va_list);
1710 extern NCURSES_EXPORT(chtype)           _nc_retrace_chtype (chtype);
1711 extern NCURSES_EXPORT(const char *)     _nc_altcharset_name(attr_t, chtype);
1712 extern NCURSES_EXPORT(const char *)     _nc_retrace_cptr (const char *);
1713 extern NCURSES_EXPORT(char)             _nc_retrace_char (int);
1714 extern NCURSES_EXPORT(int)              _nc_retrace_int (int);
1715 extern NCURSES_EXPORT(int)              _nc_retrace_int_attr_t (attr_t);
1716 extern NCURSES_EXPORT(mmask_t)          _nc_retrace_mmask_t (SCREEN *, mmask_t);
1717 extern NCURSES_EXPORT(unsigned)         _nc_retrace_unsigned (unsigned);
1718 extern NCURSES_EXPORT(void *)           _nc_retrace_void_ptr (void *);
1719 extern NCURSES_EXPORT(void)             _nc_fifo_dump (SCREEN *);
1720 
1721 extern NCURSES_EXPORT(char *)           _nc_fmt_funcptr(char *, const char *, size_t);
1722 
1723 #if USE_REENTRANT
1724 NCURSES_WRAPPED_VAR(long, _nc_outchars);
1725 NCURSES_WRAPPED_VAR(const char *, _nc_tputs_trace);
1726 #define _nc_outchars       NCURSES_PUBLIC_VAR(_nc_outchars())
1727 #define _nc_tputs_trace    NCURSES_PUBLIC_VAR(_nc_tputs_trace())
1728 extern NCURSES_EXPORT(void)		_nc_set_tputs_trace (const char *);
1729 extern NCURSES_EXPORT(void)		_nc_count_outchars (long);
1730 #else
1731 extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace;
1732 extern NCURSES_EXPORT_VAR(long)         _nc_outchars;
1733 #endif
1734 
1735 extern NCURSES_EXPORT_VAR(unsigned)     _nc_tracing;
1736 
1737 extern NCURSES_EXPORT(char *) _nc_tracebits (void);
1738 extern NCURSES_EXPORT(char *) _tracemouse (const MEVENT *);
1739 extern NCURSES_EXPORT(void) _tracedump (const char *, WINDOW *);
1740 
1741 #if USE_WIDEC_SUPPORT
1742 extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *);
1743 extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int);
1744 #endif
1745 
1746 extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int);
1747 extern NCURSES_EXPORT(const char *) _nc_viscbuf (const NCURSES_CH_T *, int);
1748 
1749 #else /* !TRACE */
1750 
1751 #define START_TRACE() /* nothing */
1752 
1753 #define T(a)
1754 #define TR(n, a)
1755 #define TPUTS_TRACE(s)
1756 #define TR_FUNC_BFR(max)
1757 
1758 #define returnAttr(code)	return code
1759 #define returnBits(code)	return code
1760 #define returnBool(code)	return code
1761 #define returnCPtr(code)	return code
1762 #define returnCVoidPtr(code)	return code
1763 #define returnChar(code)	return ((char) code)
1764 #define returnChtype(code)	return code
1765 #define returnCode(code)	return code
1766 #define returnIntAttr(code)	return code
1767 #define returnMMask(code)	return code
1768 #define returnPtr(code)		return code
1769 #define returnSP(code)		return code
1770 #define returnVoid		return
1771 #define returnVoidPtr(code)	return code
1772 #define returnWin(code)		return code
1773 
1774 #define returnDB(code)		return code
1775 #define returnPtrDB(rc)		return rc
1776 #define returnVoidDB		return
1777 
1778 #endif /* TRACE/!TRACE */
1779 
1780 /*
1781  * Workaround for defective implementation of gcc attribute warn_unused_result
1782  */
1783 #if defined(__GNUC__) && defined(_FORTIFY_SOURCE)
1784 #define IGNORE_RC(func) errno = (int) func
1785 #else
1786 #define IGNORE_RC(func) (void) func
1787 #endif /* gcc workarounds */
1788 
1789 /*
1790  * Return-codes for tgetent() and friends.
1791  */
1792 #define TGETENT_YES  1		/* entry is found */
1793 #define TGETENT_NO   0		/* entry is not found */
1794 #define TGETENT_ERR -1		/* an error occurred */
1795 
1796 extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *);
1797 extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int);
1798 
1799 #define EMPTY_MODULE(name) \
1800 extern	NCURSES_EXPORT(void) name (void); \
1801 	NCURSES_EXPORT(void) name (void) { }
1802 
1803 #define ALL_BUT_COLOR ((chtype)~(A_COLOR))
1804 #define NONBLANK_ATTR (A_BOLD | A_DIM | A_BLINK | A_ITALIC)
1805 #define TPARM_ATTR    (A_STANDOUT | A_UNDERLINE | A_REVERSE | A_BLINK | A_DIM | A_BOLD | A_ALTCHARSET | A_INVIS | A_PROTECT)
1806 #define XMC_CONFLICT  (A_STANDOUT | A_UNDERLINE | A_REVERSE | A_BLINK | A_DIM | A_BOLD | A_INVIS | A_PROTECT | A_ITALIC)
1807 #define XMC_CHANGES(c) ((c) & SP_PARM->_xmc_suppress)
1808 
1809 #define toggle_attr_on(S,at) {\
1810    if (PairNumber(at) > 0) {\
1811       (S) = ((S) & ALL_BUT_COLOR) | (attr_t) (at);\
1812    } else {\
1813       (S) |= (attr_t) (at);\
1814    }\
1815    TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1816 
1817 
1818 #define toggle_attr_off(S,at) {\
1819    if (PairNumber(at) > 0) {\
1820       (S) &= ~(at|A_COLOR);\
1821    } else {\
1822       (S) &= ~(at);\
1823    }\
1824    TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1825 
1826 #define DelCharCost(sp,count) \
1827 		((parm_dch != 0) \
1828 		? sp->_dch_cost \
1829 		: ((delete_character != 0) \
1830 			? (sp->_dch1_cost * count) \
1831 			: INFINITY))
1832 
1833 #define InsCharCost(sp,count) \
1834 		((parm_ich != 0) \
1835 		? sp->_ich_cost \
1836 		: ((enter_insert_mode && exit_insert_mode) \
1837 		  ? sp->_smir_cost + sp->_rmir_cost + (sp->_ip_cost * count) \
1838 		  : ((insert_character != 0) \
1839 		    ? ((sp->_ich1_cost + sp->_ip_cost) * count) \
1840 		    : INFINITY)))
1841 
1842 #if USE_XMC_SUPPORT
1843 #define UpdateAttrs(sp,c) if (!SameAttrOf(SCREEN_ATTRS(sp), c)) { \
1844 				attr_t chg = AttrOf(SCREEN_ATTRS(sp)); \
1845 				VIDPUTS(sp, AttrOf(c), GetPair(c)); \
1846 				if (magic_cookie_glitch > 0 \
1847 				 && XMC_CHANGES((chg ^ AttrOf(SCREEN_ATTRS(sp))))) { \
1848 					T(("%s @%d before glitch %d,%d", \
1849 						__FILE__, __LINE__, \
1850 						sp->_cursrow, \
1851 						sp->_curscol)); \
1852 					NCURSES_SP_NAME(_nc_do_xmc_glitch)(NCURSES_SP_ARGx chg); \
1853 				} \
1854 			}
1855 #else
1856 #define UpdateAttrs(sp,c) if (!SameAttrOf(SCREEN_ATTRS(sp), c)) { \
1857 				    VIDPUTS(sp, AttrOf(c), GetPair(c)); \
1858 			}
1859 #endif
1860 
1861 /*
1862  * Macros to make additional parameter to implement wgetch_events()
1863  */
1864 #ifdef NCURSES_WGETCH_EVENTS
1865 #define EVENTLIST_0th(param) param
1866 #define EVENTLIST_1st(param) param
1867 #define EVENTLIST_2nd(param) , param
1868 #define TWAIT_MASK (TW_ANY | TW_EVENT)
1869 #else
1870 #define EVENTLIST_0th(param) void
1871 #define EVENTLIST_1st(param) /* nothing */
1872 #define EVENTLIST_2nd(param) /* nothing */
1873 #define TWAIT_MASK TW_ANY
1874 #endif
1875 
1876 #if NCURSES_EXPANDED && NCURSES_EXT_FUNCS
1877 
1878 #undef  toggle_attr_on
1879 #define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at)
1880 extern NCURSES_EXPORT(void) _nc_toggle_attr_on (attr_t *, attr_t);
1881 
1882 #undef  toggle_attr_off
1883 #define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at)
1884 extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t);
1885 
1886 #undef  DelCharCost
1887 #define DelCharCost(sp, count) NCURSES_SP_NAME(_nc_DelCharCost)(NCURSES_SP_ARGx count)
1888 
1889 #undef  InsCharCost
1890 #define InsCharCost(sp, count) NCURSES_SP_NAME(_nc_InsCharCost)(NCURSES_SP_ARGx count)
1891 
1892 extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_DelCharCost) (NCURSES_SP_DCLx int _c);
1893 extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_InsCharCost) (NCURSES_SP_DCLx int _c);
1894 
1895 #undef  UpdateAttrs
1896 #define UpdateAttrs(sp,c) NCURSES_SP_NAME(_nc_UpdateAttrs)(NCURSES_SP_ARGx CHREF(c))
1897 
1898 #if USE_WIDEC_SUPPORT || defined(NEED_NCURSES_CH_T)
1899 extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx CARG_CH_T _c);
1900 #else
1901 extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx chtype c);
1902 #endif
1903 
1904 #if NCURSES_SP_FUNCS
1905 extern NCURSES_EXPORT(int) _nc_DelCharCost (int);
1906 extern NCURSES_EXPORT(int) _nc_InsCharCost (int);
1907 extern NCURSES_EXPORT(void) _nc_UpdateAttrs (CARG_CH_T);
1908 #endif /* NCURSES_SP_FUNCS */
1909 
1910 #else
1911 
1912 extern NCURSES_EXPORT(void) _nc_expanded (void);
1913 
1914 #endif
1915 
1916 #if !NCURSES_EXT_FUNCS
1917 #define set_escdelay(value) ESCDELAY = value
1918 #endif
1919 
1920 #if !HAVE_GETCWD
1921 #define getcwd(buf,len) getwd(buf)
1922 #endif
1923 
1924 #define save_ttytype(termp) \
1925 	if (TerminalType(termp).term_names != 0) { \
1926 	    _nc_STRNCPY(ttytype, \
1927 	    		TerminalType(termp).term_names, \
1928 			NAMESIZE - 1); \
1929 	    ttytype[NAMESIZE - 1] = '\0'; \
1930 	}
1931 
1932 #if !NCURSES_WCWIDTH_GRAPHICS
1933 extern NCURSES_EXPORT(int) _nc_wacs_width(unsigned);
1934 #else
1935 #define _nc_wacs_width(ch) wcwidth(ch)
1936 #endif
1937 
1938 /* charable.c */
1939 #if USE_WIDEC_SUPPORT
1940 extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t);
1941 extern NCURSES_EXPORT(int) _nc_to_char(wint_t);
1942 extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int);
1943 #endif
1944 
1945 /* comp_captab.c */
1946 typedef struct {
1947 	short	nte_name;	/* offset of name to hash on */
1948 	int	nte_type;	/* BOOLEAN, NUMBER or STRING */
1949 	short	nte_index;	/* index of associated variable in its array */
1950 	short	nte_link;	/* index in table of next hash, or -1 */
1951 } name_table_data;
1952 
1953 typedef struct
1954 {
1955 	short	from;
1956 	short	to;
1957 	short	source;
1958 } alias_table_data;
1959 
1960 /* comp_userdefs.c */
1961 typedef struct {
1962 	short	ute_name;	/* offset of name to hash on */
1963 	unsigned ute_type;	/* mask (BOOLEAN, NUMBER, STRING) */
1964 	unsigned ute_argc;	/* number of parameters */
1965 	unsigned ute_args;	/* bit-mask for string parameters */
1966 	short	ute_index;	/* index of associated variable in its array */
1967 	short	ute_link;	/* index in table of next hash, or -1 */
1968 } user_table_data;
1969 
1970 /* doupdate.c */
1971 #if USE_XMC_SUPPORT
1972 extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t);
1973 #endif
1974 
1975 /* hardscroll.c */
1976 #if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
1977 extern NCURSES_EXPORT(void) _nc_linedump (void);
1978 #endif
1979 
1980 /* lib_acs.c */
1981 extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */
1982 extern NCURSES_EXPORT(int)  _nc_msec_cost (const char *const, int);
1983 
1984 /* lib_addch.c */
1985 #if USE_WIDEC_SUPPORT
1986 extern NCURSES_EXPORT(int) _nc_build_wch(WINDOW *win, ARG_CH_T ch);
1987 #endif
1988 
1989 /* lib_addstr.c */
1990 #if USE_WIDEC_SUPPORT && !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
1991 extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *);
1992 #endif
1993 
1994 /* lib_color.c */
1995 extern NCURSES_EXPORT(int) _nc_init_color(SCREEN *, int, int, int, int);
1996 extern NCURSES_EXPORT(int) _nc_init_pair(SCREEN *, int, int, int);
1997 extern NCURSES_EXPORT(int) _nc_pair_content(SCREEN *, int, int *, int *);
1998 extern NCURSES_EXPORT(bool) _nc_reset_colors(void);
1999 extern NCURSES_EXPORT(void) _nc_reserve_pairs(SCREEN *, int);
2000 extern NCURSES_EXPORT(void) _nc_change_pair(SCREEN *, int);
2001 
2002 #define ReservePairs(sp,want) \
2003 	    if ((sp->_color_pairs == 0) || (want >= sp->_pair_alloc)) \
2004 		_nc_reserve_pairs(sp, want)
2005 
2006 /* lib_getch.c */
2007 extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, int *, int EVENTLIST_2nd(_nc_eventlist *));
2008 
2009 /* lib_insch.c */
2010 extern NCURSES_EXPORT(int) _nc_insert_ch(SCREEN *, WINDOW *, chtype);
2011 
2012 /* lib_mvcur.c */
2013 #define INFINITY	1000000	/* cost: too high to use */
2014 
2015 extern NCURSES_EXPORT(int) _nc_mvcur(int yold, int xold, int ynew, int xnew);
2016 
2017 extern NCURSES_EXPORT(void) _nc_mvcur_init (void);
2018 extern NCURSES_EXPORT(void) _nc_mvcur_resume (void);
2019 extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void);
2020 
2021 extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int);
2022 
2023 extern NCURSES_EXPORT(void) _nc_screen_init (void);
2024 extern NCURSES_EXPORT(void) _nc_screen_resume (void);
2025 extern NCURSES_EXPORT(void) _nc_screen_wrap (void);
2026 
2027 /* lib_mouse.c */
2028 extern NCURSES_EXPORT(bool) _nc_has_mouse (SCREEN *);
2029 
2030 /* lib_mvcur.c */
2031 #define INFINITY	1000000	/* cost: too high to use */
2032 #define BAUDBYTE	9	/* 9 = 7 bits + 1 parity + 1 stop */
2033 
2034 /* lib_setup.c */
2035 extern NCURSES_EXPORT(char *) _nc_get_locale(void);
2036 extern NCURSES_EXPORT(int)    _nc_unicode_locale(void);
2037 extern NCURSES_EXPORT(int)    _nc_locale_breaks_acs(TERMINAL *);
2038 extern NCURSES_EXPORT(int)    _nc_setupterm(const char *, int, int *, int);
2039 extern NCURSES_EXPORT(void)   _nc_tinfo_cmdch(TERMINAL *, int);
2040 
2041 #ifdef USE_PTHREADS
2042 extern NCURSES_EXPORT(SCREEN *) _nc_find_prescr(void);
2043 extern NCURSES_EXPORT(void)   _nc_forget_prescr(void);
2044 #else
2045 #define _nc_find_prescr()     _nc_prescreen.allocated
2046 #define _nc_forget_prescr()   _nc_prescreen.allocated = 0
2047 #endif
2048 
2049 /* lib_set_term.c */
2050 extern NCURSES_EXPORT(int)    _nc_ripoffline(int, int(*)(WINDOW*, int));
2051 
2052 /* lib_setup.c */
2053 #define ExitTerminfo(code)    exit_terminfo(code)
2054 
2055 #define SETUP_FAIL ERR
2056 
2057 #define ret_error(rc, fmt, p, q)	if (errret) {\
2058 					    *errret = rc;\
2059 					    q;\
2060 					    returnCode(SETUP_FAIL);\
2061 					} else {\
2062 					    fprintf(stderr, fmt, p);\
2063 					    q;\
2064 					    ExitTerminfo(EXIT_FAILURE);\
2065 					}
2066 
2067 #define ret_error1(rc, fmt, p, q)	ret_error(rc, "'%s': " fmt, p, q)
2068 
2069 #define ret_error0(rc, msg)		if (errret) {\
2070 					    *errret = rc;\
2071 					    returnCode(SETUP_FAIL);\
2072 					} else {\
2073 					    fprintf(stderr, msg);\
2074 					    ExitTerminfo(EXIT_FAILURE);\
2075 					}
2076 
2077 /* lib_tstp.c */
2078 #if USE_SIGWINCH
2079 extern NCURSES_EXPORT(int) _nc_handle_sigwinch(SCREEN *);
2080 #else
2081 #define _nc_handle_sigwinch(a) /* nothing */
2082 #endif
2083 
2084 /* lib_wacs.c */
2085 #if USE_WIDEC_SUPPORT
2086 extern NCURSES_EXPORT(void) _nc_init_wacs(void);
2087 #endif
2088 
2089 typedef struct {
2090     char *s_head;	/* beginning of the string (may be null) */
2091     char *s_tail;	/* end of the string (may be null) */
2092     size_t s_size;	/* current remaining size available */
2093     size_t s_init;	/* total size available */
2094 } string_desc;
2095 
2096 /* strings.c */
2097 extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t);
2098 extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t);
2099 extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, const string_desc *);
2100 extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *);
2101 extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *);
2102 
2103 #if !HAVE_STRSTR
2104 #define strstr _nc_strstr
2105 extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *);
2106 #endif
2107 
2108 /* safe_sprintf.c */
2109 extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list);
2110 
2111 /* tries.c */
2112 extern NCURSES_EXPORT(int) _nc_add_to_try (TRIES **, const char *, unsigned);
2113 extern NCURSES_EXPORT(char *) _nc_expand_try (TRIES *, unsigned, int *, size_t);
2114 extern NCURSES_EXPORT(int) _nc_remove_key (TRIES **, unsigned);
2115 extern NCURSES_EXPORT(int) _nc_remove_string (TRIES **, const char *);
2116 
2117 /* elsewhere ... */
2118 extern NCURSES_EXPORT(SCREEN *) _nc_screen_of (WINDOW *);
2119 extern NCURSES_EXPORT(TERMINAL*) _nc_get_cur_term (void);
2120 extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int);
2121 extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t);
2122 extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *);
2123 extern NCURSES_EXPORT(char *) _nc_tracechar (SCREEN *, int);
2124 extern NCURSES_EXPORT(char *) _nc_tracemouse (SCREEN *, MEVENT const *);
2125 extern NCURSES_EXPORT(char *) _nc_trace_mmask_t (SCREEN *, mmask_t);
2126 extern NCURSES_EXPORT(int) _nc_access (const char *, int);
2127 extern NCURSES_EXPORT(int) _nc_baudrate (int);
2128 extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *);
2129 extern NCURSES_EXPORT(int) _nc_getenv_num (const char *);
2130 extern NCURSES_EXPORT(int) _nc_keypad (SCREEN *, int);
2131 extern NCURSES_EXPORT(int) _nc_ospeed (int);
2132 extern NCURSES_EXPORT(int) _nc_outch (int);
2133 extern NCURSES_EXPORT(int) _nc_putchar (int);
2134 extern NCURSES_EXPORT(int) _nc_putp(const char *, const char *);
2135 extern NCURSES_EXPORT(int) _nc_putp_flush(const char *, const char *);
2136 extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE2 *const);
2137 extern NCURSES_EXPORT(int) _nc_setup_tinfo(const char *, TERMTYPE2 *);
2138 extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, int, int);
2139 extern NCURSES_EXPORT(int) _nc_timed_wait (SCREEN *, int, int, int * EVENTLIST_2nd(_nc_eventlist *));
2140 extern NCURSES_EXPORT(int) _nc_trans_string (char *, const char *);
2141 extern NCURSES_EXPORT(void) _nc_init_termtype (TERMTYPE2 *const);
2142 extern NCURSES_EXPORT(void) _nc_do_color (int, int, int, NCURSES_OUTC);
2143 extern NCURSES_EXPORT(void) _nc_flush (void);
2144 extern NCURSES_EXPORT(void) _nc_free_entry (ENTRY *, TERMTYPE2 *);
2145 extern NCURSES_EXPORT(void) _nc_freeall (void);
2146 extern NCURSES_EXPORT(void) _nc_hash_map (void);
2147 extern NCURSES_EXPORT(void) _nc_init_keytry (SCREEN *);
2148 extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *);
2149 extern NCURSES_EXPORT(void) _nc_make_oldhash (int i);
2150 extern NCURSES_EXPORT(void) _nc_reset_input (FILE *, char *);
2151 extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot);
2152 extern NCURSES_EXPORT(void) _nc_scroll_optimize (void);
2153 extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, int);
2154 extern NCURSES_EXPORT(void) _nc_setenv_num (const char *, int);
2155 extern NCURSES_EXPORT(void) _nc_signal_handler (int);
2156 extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *);
2157 extern NCURSES_EXPORT(void) _nc_trace_tries (TRIES *);
2158 
2159 #if NCURSES_EXT_NUMBERS
2160 extern NCURSES_EXPORT(const TERMTYPE2 *) _nc_fallback2 (const char *);
2161 #else
2162 #define _nc_fallback2(tp) _nc_fallback(tp)
2163 #endif
2164 
2165 extern NCURSES_EXPORT(void) _nc_copy_termtype(TERMTYPE *, const TERMTYPE *);
2166 
2167 #if NCURSES_EXT_NUMBERS
2168 extern NCURSES_EXPORT(void) _nc_copy_termtype2 (TERMTYPE2 *, const TERMTYPE2 *);
2169 extern NCURSES_EXPORT(void) _nc_export_termtype2(TERMTYPE *, const TERMTYPE2 *);
2170 #else
2171 #define _nc_copy_termtype2(dst,src) _nc_copy_termtype((dst),(src))
2172 #define _nc_export_termtype2(dst,src) /* nothing */
2173 #define _nc_free_termtype2(t) _nc_free_termtype(t)
2174 /* also... */
2175 #define _nc_read_entry2 _nc_read_entry
2176 #endif
2177 
2178 #if NO_LEAKS
2179 extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void);
2180 extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void);
2181 extern NCURSES_EXPORT(void) _nc_codes_leaks(void);
2182 extern NCURSES_EXPORT(void) _nc_comp_captab_leaks(void);
2183 extern NCURSES_EXPORT(void) _nc_comp_error_leaks(void);
2184 extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void);
2185 extern NCURSES_EXPORT(void) _nc_comp_userdefs_leaks(void);
2186 extern NCURSES_EXPORT(void) _nc_db_iterator_leaks(void);
2187 extern NCURSES_EXPORT(void) _nc_keyname_leaks(void);
2188 extern NCURSES_EXPORT(void) _nc_names_leaks(void);
2189 extern NCURSES_EXPORT(void) _nc_tgetent_leak(const TERMINAL *);
2190 extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void);
2191 #endif
2192 
2193 #if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2194 extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T);
2195 extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T);
2196 extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, int const, int const, NCURSES_CH_T);
2197 #endif
2198 
2199 #if USE_WIDEC_SUPPORT
2200 extern NCURSES_EXPORT(int) _nc_insert_wch(WINDOW *, const cchar_t *);
2201 #endif
2202 
2203 #if USE_WIDEC_SUPPORT && !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2204 extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *);
2205 #endif
2206 
2207 #if USE_SIZECHANGE
2208 extern NCURSES_EXPORT(void) _nc_update_screensize (SCREEN *);
2209 #endif
2210 
2211 #if HAVE_RESIZETERM
2212 extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *);
2213 #else
2214 #define _nc_resize_margins(wp) /* nothing */
2215 #endif
2216 
2217 #ifdef NCURSES_WGETCH_EVENTS
2218 extern NCURSES_EXPORT(int) _nc_eventlist_timeout(_nc_eventlist *);
2219 #else
2220 #define wgetch_events(win, evl) wgetch(win)
2221 #define wgetnstr_events(win, str, maxlen, evl) wgetnstr(win, str, maxlen)
2222 #endif
2223 
2224 /*
2225  * Wide-character macros to hide some platform-differences.
2226  */
2227 #if USE_WIDEC_SUPPORT
2228 
2229 #if defined(_NC_WINDOWS) && !defined(_NC_MSC) && !defined(EXP_WIN32_DRIVER)
2230 /*
2231  * MinGW has wide-character functions, but they do not work correctly.
2232  */
2233 extern int __MINGW_NOTHROW _nc_wctomb(char *, wchar_t);
2234 #define wctomb(s,wc) _nc_wctomb(s,wc)
2235 #define wcrtomb(s,wc,n) _nc_wctomb(s,wc)
2236 
2237 extern int __MINGW_NOTHROW _nc_mbtowc(wchar_t *, const char *, size_t);
2238 #define mbtowc(pwc,s,n) _nc_mbtowc(pwc,s,n)
2239 
2240 extern int __MINGW_NOTHROW _nc_mblen(const char *, size_t);
2241 #define mblen(s,n) _nc_mblen(s, n)
2242 
2243 #endif /* _NC_WINDOWS && !_NC_MSC */
2244 
2245 #if defined(_NC_WINDOWS) || defined(_NC_MINGW)
2246 /* see wcwidth.c */
2247 extern NCURSES_EXPORT(int) mk_wcwidth(wchar_t);
2248 #define wcwidth(ucs) _nc_wcwidth(ucs)
2249 #endif
2250 
2251 #if HAVE_MBTOWC && HAVE_MBLEN
2252 #define reset_mbytes(state) IGNORE_RC(mblen(NULL, (size_t) 0)), IGNORE_RC(mbtowc(NULL, NULL, (size_t) 0))
2253 #define count_mbytes(buffer,length,state) mblen(buffer,length)
2254 #define check_mbytes(wch,buffer,length,state) \
2255 	(int) mbtowc(&(wch), buffer, length)
2256 #define state_unused
2257 #elif HAVE_MBRTOWC && HAVE_MBRLEN
2258 #define reset_mbytes(state) init_mb(state)
2259 #define count_mbytes(buffer,length,state) mbrlen(buffer,length,&(state))
2260 #define check_mbytes(wch,buffer,length,state) \
2261 	(int) mbrtowc(&(wch), buffer, length, &(state))
2262 #else
2263 make an error
2264 #endif
2265 
2266 #endif /* USE_WIDEC_SUPPORT */
2267 
2268 /*
2269  * Not everyone has vsscanf(), but we'd like to use it for scanw().
2270  */
2271 #if !HAVE_VSSCANF
2272 extern int vsscanf(const char *str, const char *format, va_list __arg);
2273 #endif
2274 
2275 /* scroll indices */
2276 extern NCURSES_EXPORT_VAR(int *) _nc_oldnums;
2277 
2278 #define USE_SETBUF_0 0
2279 
2280 #define NC_OUTPUT(sp) ((sp != 0 && sp->_ofp != 0) ? sp->_ofp : stdout)
2281 
2282 /*
2283  * On systems with a broken linker, define 'SP' as a function to force the
2284  * linker to pull in the data-only module with 'SP'.
2285  */
2286 #define _nc_alloc_screen_sp() typeCalloc(SCREEN, 1)
2287 
2288 #if BROKEN_LINKER
2289 #define SP _nc_screen()
2290 extern NCURSES_EXPORT(SCREEN *) _nc_screen (void);
2291 extern NCURSES_EXPORT(int)      _nc_alloc_screen (void);
2292 extern NCURSES_EXPORT(void)     _nc_set_screen (SCREEN *);
2293 #define CURRENT_SCREEN          _nc_screen()
2294 #else
2295 /* current screen is private data; avoid possible linking conflicts too */
2296 extern NCURSES_EXPORT_VAR(SCREEN *) SP;
2297 #define CURRENT_SCREEN SP
2298 #define _nc_alloc_screen()      ((SP = _nc_alloc_screen_sp()) != 0)
2299 #define _nc_set_screen(sp)      SP = sp
2300 #endif
2301 
2302 #if NCURSES_SP_FUNCS
2303 #define CURRENT_SCREEN_PRE      (IsPreScreen(CURRENT_SCREEN) ? CURRENT_SCREEN : new_prescr())
2304 #else
2305 #define CURRENT_SCREEN_PRE      CURRENT_SCREEN
2306 #endif
2307 
2308 /*
2309  * We don't want to use the lines or columns capabilities internally, because
2310  * if the application is running multiple screens under X, it is quite possible
2311  * they could all have type xterm but have different sizes!  So...
2312  */
2313 #define screen_lines(sp)        (sp)->_lines
2314 #define screen_columns(sp)      (sp)->_columns
2315 
2316 extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int);
2317 extern NCURSES_EXPORT(int) _nc_format_slks (NCURSES_SP_DCLx int _c);
2318 
2319 /*
2320  * Some constants related to SLK's
2321  */
2322 #define MAX_SKEY_OLD	   8	/* count of soft keys */
2323 #define MAX_SKEY_LEN_OLD   8	/* max length of soft key text */
2324 #define MAX_SKEY_PC       12    /* This is what most PC's have */
2325 #define MAX_SKEY_LEN_PC    5
2326 
2327 /* Macro to check whether or not we use a standard format */
2328 #define SLK_STDFMT(fmt) (fmt < 3)
2329 /* Macro to determine height of label window */
2330 #define SLK_LINES(fmt)  (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2))
2331 
2332 #define MAX_SKEY(fmt)     (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC)
2333 #define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC)
2334 
2335 /*
2336  * Common error messages
2337  */
2338 #define MSG_NO_MEMORY "Out of memory"
2339 #define MSG_NO_INPUTS "Premature EOF"
2340 
2341 extern NCURSES_EXPORT(int) _nc_set_tty_mode(TTY *);
2342 extern NCURSES_EXPORT(int) _nc_get_tty_mode(TTY *);
2343 
2344 /* timed_wait flag definitions */
2345 #define TW_NONE    0
2346 #define TW_INPUT   1
2347 #define TW_MOUSE   2
2348 #define TW_ANY     (TW_INPUT | TW_MOUSE)
2349 #define TW_EVENT   4
2350 
2351 #define SetSafeOutcWrapper(outc)	    \
2352     SCREEN* sp = CURRENT_SCREEN;            \
2353     struct screen outc_wrapper;		    \
2354     if (sp==0) {                            \
2355 	sp = &outc_wrapper;                 \
2356 	memset(sp,0,sizeof(struct screen)); \
2357 	sp->_outch = _nc_outc_wrapper;      \
2358     }\
2359     sp->jump = outc
2360 
2361 #ifdef USE_TERM_DRIVER
2362 
2363 typedef struct _termInfo
2364 {
2365     bool caninit;
2366 
2367     bool hascolor;
2368     bool initcolor;
2369     bool canchange;
2370 
2371     int  tabsize;
2372 
2373     int  maxcolors;
2374     int  maxpairs;
2375     int  nocolorvideo;
2376 
2377     int  numbuttons;
2378     int  numlabels;
2379     int  labelwidth;
2380     int  labelheight;
2381 
2382     const color_t* defaultPalette;
2383 } TerminalInfo;
2384 
2385 typedef struct term_driver {
2386     bool   isTerminfo;
2387     const char* (*td_name)(struct DriverTCB*);
2388     bool   (*td_CanHandle)(struct DriverTCB*, const char*, int*);
2389     void   (*td_init)(struct DriverTCB*);
2390     void   (*td_release)(struct DriverTCB*);
2391     int    (*td_size)(struct DriverTCB*, int* Line, int *Cols);
2392     int    (*td_sgmode)(struct DriverTCB*, int setFlag, TTY*);
2393     chtype (*td_conattr)(struct DriverTCB*);
2394     int    (*td_hwcur)(struct DriverTCB*, int yold, int xold, int y, int x);
2395     int    (*td_mode)(struct DriverTCB*, int progFlag, int defFlag);
2396     bool   (*td_rescol)(struct DriverTCB*);
2397     bool   (*td_rescolors)(struct DriverTCB*);
2398     void   (*td_color)(struct DriverTCB*, int fore, int color, int(*)(SCREEN*, int));
2399     int    (*td_doBeepOrFlash)(struct DriverTCB*, int);
2400     void   (*td_initpair)(struct DriverTCB*, int, int, int);
2401     void   (*td_initcolor)(struct DriverTCB*, int, int, int, int);
2402     void   (*td_docolor)(struct DriverTCB*, int, int, int, int(*)(SCREEN*, int));
2403     void   (*td_initmouse)(struct DriverTCB*);
2404     int    (*td_testmouse)(struct DriverTCB*, int EVENTLIST_2nd(_nc_eventlist*));
2405     void   (*td_setfilter)(struct DriverTCB*);
2406     void   (*td_hwlabel)(struct DriverTCB*, int, char*);
2407     void   (*td_hwlabelOnOff)(struct DriverTCB*, int);
2408     int    (*td_update)(struct DriverTCB*);
2409     int    (*td_defaultcolors)(struct DriverTCB*, int, int);
2410     int    (*td_print)(struct DriverTCB*, char*, int);
2411     int    (*td_getsize)(struct DriverTCB*, int*, int*);
2412     int    (*td_setsize)(struct DriverTCB*, int, int);
2413     void   (*td_initacs)(struct DriverTCB*, chtype*, chtype*);
2414     void   (*td_scinit)(SCREEN *);
2415     void   (*td_scexit)(SCREEN *);
2416     int    (*td_twait)(struct DriverTCB*, int, int, int* EVENTLIST_2nd(_nc_eventlist*));
2417     int    (*td_read)(struct DriverTCB*, int*);
2418     int    (*td_nap)(struct DriverTCB*, int);
2419     int    (*td_kpad)(struct DriverTCB*, int);
2420     int    (*td_kyOk)(struct DriverTCB*, int, int);
2421     bool   (*td_kyExist)(struct DriverTCB*, int);
2422     int    (*td_cursorSet)(struct DriverTCB*, int);
2423 } TERM_DRIVER;
2424 
2425 typedef struct DriverTCB
2426 {
2427     TERMINAL      term;   /* needs to be the first Element !!! */
2428     TERM_DRIVER*  drv;    /* The driver for that Terminal */
2429     SCREEN*       csp;    /* The screen that owns that Terminal */
2430     TerminalInfo  info;   /* Driver independent core capabilities of the Terminal */
2431     void*         prop;   /* Driver dependent property storage to be used by the Driver */
2432     long          magic;
2433 } TERMINAL_CONTROL_BLOCK;
2434 
2435 #define NCDRV_MAGIC(id) (0x47110000 | (id&0xffff))
2436 #define NCDRV_TINFO      0x01
2437 #define NCDRV_WINCONSOLE 0x02
2438 
2439 #define TCBOf(sp)    ((TERMINAL_CONTROL_BLOCK*)(TerminalOf(sp)))
2440 #define InfoOf(sp)   TCBOf(sp)->info
2441 #define CallDriver(sp,method)                        TCBOf(sp)->drv->method(TCBOf(sp))
2442 #define CallDriver_1(sp,method,arg1)                 TCBOf(sp)->drv->method(TCBOf(sp),arg1)
2443 #define CallDriver_2(sp,method,arg1,arg2)            TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2)
2444 #define CallDriver_3(sp,method,arg1,arg2,arg3)       TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2,arg3)
2445 #define CallDriver_4(sp,method,arg1,arg2,arg3,arg4)  TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2,arg3,arg4)
2446 
2447 extern NCURSES_EXPORT_VAR(const color_t*) _nc_cga_palette;
2448 extern NCURSES_EXPORT_VAR(const color_t*) _nc_hls_palette;
2449 
2450 extern NCURSES_EXPORT(int)      _nc_get_driver(TERMINAL_CONTROL_BLOCK*, const char*, int*);
2451 extern NCURSES_EXPORT(void)     _nc_get_screensize_ex(SCREEN *, TERMINAL *, int *, int *);
2452 #endif /* USE_TERM_DRIVER */
2453 
2454 /*
2455  * Entrypoints which are actually provided in the terminal driver, which would
2456  * be an sp-name otherwise.
2457  */
2458 #ifdef USE_TERM_DRIVER
2459 #define TINFO_HAS_KEY           _nc_tinfo_has_key
2460 #define TINFO_DOUPDATE          _nc_tinfo_doupdate
2461 #define TINFO_MVCUR             _nc_tinfo_mvcur
2462 extern NCURSES_EXPORT(int)      TINFO_HAS_KEY(SCREEN*, int);
2463 extern NCURSES_EXPORT(int)      TINFO_DOUPDATE(SCREEN *);
2464 extern NCURSES_EXPORT(int)      TINFO_MVCUR(SCREEN*, int, int, int, int);
2465 #else
2466 #define TINFO_HAS_KEY           NCURSES_SP_NAME(has_key)
2467 #define TINFO_DOUPDATE          NCURSES_SP_NAME(doupdate)
2468 #define TINFO_MVCUR             NCURSES_SP_NAME(_nc_mvcur)
2469 #endif
2470 
2471 #if defined(EXP_WIN32_DRIVER)
2472 #include <nc_win32.h>
2473 #endif
2474 
2475 /*
2476  * Entrypoints using an extra parameter with the terminal driver.
2477  */
2478 #ifdef USE_TERM_DRIVER
2479 extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, TERMINAL *, int *, int *);
2480 extern NCURSES_EXPORT(int)    _nc_setupterm_ex(TERMINAL **, const char *, int , int *, int);
2481 #define TINFO_GET_SIZE(sp, tp, lp, cp) \
2482 	_nc_get_screensize(sp, tp, lp, cp)
2483 #define TINFO_SET_CURTERM(sp, tp) \
2484 	NCURSES_SP_NAME(set_curterm)(sp, tp)
2485 #define TINFO_SETUP_TERM(tpp, name, fd, err, reuse) \
2486 	_nc_setupterm_ex(tpp, name, fd, err, reuse)
2487 #else /* !USE_TERM_DRIVER */
2488 extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, int *, int *);
2489 #define TINFO_GET_SIZE(sp, tp, lp, cp) \
2490 	_nc_get_screensize(sp, lp, cp)
2491 #define TINFO_SET_CURTERM(sp, tp) \
2492 	set_curterm(tp)
2493 #define TINFO_SETUP_TERM(tpp, name, fd, err, reuse) \
2494 	_nc_setupterm(name, fd, err, reuse)
2495 #endif /* !USE_TERM_DRIVER */
2496 
2497 #ifdef EXP_WIN32_DRIVER
2498 extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_TINFO_DRIVER;
2499 #else
2500 #ifdef USE_TERM_DRIVER
2501 #if defined(USE_WIN32CON_DRIVER)
2502 #include <nc_mingw.h>
2503 extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_WIN_DRIVER;
2504 extern NCURSES_EXPORT(int)  _nc_mingw_isatty(int fd);
2505 extern NCURSES_EXPORT(int)  _nc_mingw_isconsole(int fd);
2506 extern NCURSES_EXPORT(int) _nc_mingw_console_read(
2507     SCREEN *sp,
2508     HANDLE  fd,
2509     int *buf);
2510 extern NCURSES_EXPORT(int) _nc_mingw_testmouse(
2511     SCREEN * sp,
2512     HANDLE fd,
2513     int delay EVENTLIST_2nd(_nc_eventlist*));
2514 #else
2515 #endif
2516 extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_TINFO_DRIVER;
2517 #endif /* USE_TERM_DRIVER */
2518 #endif /* EXP_WIN32_DRIVER */
2519 
2520 #if defined(USE_TERM_DRIVER) && defined(EXP_WIN32_DRIVER)
2521 #define NC_ISATTY(fd) (0 != _nc_console_isatty(fd))
2522 #elif defined(USE_TERM_DRIVER) && defined(USE_WIN32CON_DRIVER)
2523 #define NC_ISATTY(fd) _nc_mingw_isatty(fd)
2524 #else
2525 #define NC_ISATTY(fd) isatty(fd)
2526 #endif
2527 
2528 #ifdef USE_TERM_DRIVER
2529 #  define IsTermInfo(sp)       ((TCBOf(sp) != 0) && ((TCBOf(sp)->drv->isTerminfo)))
2530 #  define HasTInfoTerminal(sp) ((0 != TerminalOf(sp)) && IsTermInfo(sp))
2531 #  if defined(EXP_WIN32_DRIVER)
2532 #    define IsTermInfoOnConsole(sp) (IsTermInfo(sp) && _nc_console_test(TerminalOf(sp)->Filedes))
2533 #  elif defined(USE_WIN32CON_DRIVER)
2534 #    define IsTermInfoOnConsole(sp) (IsTermInfo(sp) && _nc_mingw_isconsole(TerminalOf(sp)->Filedes))
2535 #  else
2536 #    define IsTermInfoOnConsole(sp) FALSE
2537 #  endif
2538 #else
2539 #  define IsTermInfo(sp)       TRUE
2540 #  define HasTInfoTerminal(sp) (0 != TerminalOf(sp))
2541 #  if defined(EXP_WIN32_DRIVER)
2542 #    define IsTermInfoOnConsole(sp) _nc_console_test(TerminalOf(sp)->Filedes)
2543 #  else
2544 #    define IsTermInfoOnConsole(sp) FALSE
2545 #  endif
2546 #endif
2547 
2548 #define IsValidTIScreen(sp)  (HasTInfoTerminal(sp))
2549 
2550 /*
2551  * Exported entrypoints beyond the published API
2552  */
2553 #if NCURSES_SP_FUNCS
2554 extern NCURSES_EXPORT(WINDOW *) _nc_curscr_of(SCREEN*);
2555 extern NCURSES_EXPORT(WINDOW *) _nc_newscr_of(SCREEN*);
2556 extern NCURSES_EXPORT(WINDOW *) _nc_stdscr_of(SCREEN*);
2557 extern NCURSES_EXPORT(int)      _nc_outc_wrapper(SCREEN*,int);
2558 
2559 #if USE_REENTRANT
2560 extern NCURSES_EXPORT(int)       NCURSES_SP_NAME(_nc_TABSIZE)(SCREEN*);
2561 extern NCURSES_EXPORT(char *)    NCURSES_SP_NAME(longname)(SCREEN*);
2562 #endif
2563 
2564 #if NCURSES_EXT_FUNCS
2565 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tabsize)(SCREEN*, int);
2566 #endif
2567 
2568 /*
2569  * We put the safe versions of various calls here as they are not published
2570  * part of the API up to now
2571  */
2572 extern NCURSES_EXPORT(TERMINAL*) NCURSES_SP_NAME(_nc_get_cur_term) (SCREEN *sp);
2573 extern NCURSES_EXPORT(WINDOW *) NCURSES_SP_NAME(_nc_makenew) (SCREEN*, int, int, int, int, int);
2574 extern NCURSES_EXPORT(bool)     NCURSES_SP_NAME(_nc_reset_colors)(SCREEN*);
2575 extern NCURSES_EXPORT(char *)   NCURSES_SP_NAME(_nc_printf_string)(SCREEN*, const char *, va_list);
2576 extern NCURSES_EXPORT(chtype)   NCURSES_SP_NAME(_nc_acs_char)(SCREEN*,int);
2577 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_get_tty_mode)(SCREEN*,TTY*);
2578 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mcprint)(SCREEN*,char*, int);
2579 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_msec_cost)(SCREEN*, const char *, int);
2580 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mvcur)(SCREEN*, int, int, int, int);
2581 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_outch)(SCREEN*, int);
2582 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putchar)(SCREEN*, int);
2583 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp)(SCREEN*, const char *, const char*);
2584 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp_flush)(SCREEN*, const char *, const char *);
2585 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_ripoffline)(SCREEN*, int, int (*)(WINDOW *,int));
2586 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_scrolln)(SCREEN*, int, int, int, int);
2587 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tty_mode)(SCREEN*, TTY*);
2588 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_setupscreen)(SCREEN**, int, int, FILE *, int, int);
2589 extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_tgetent)(SCREEN*,char*,const char *);
2590 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_color)(SCREEN*, int, int, int, NCURSES_SP_OUTC);
2591 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_xmc_glitch)(SCREEN*, attr_t);
2592 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_flush)(SCREEN*);
2593 extern GCC_NORETURN NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_free_and_exit)(SCREEN*, int);
2594 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_freeall)(SCREEN*);
2595 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_hash_map)(SCREEN*);
2596 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_init_acs)(SCREEN*);
2597 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_make_oldhash)(SCREEN*, int i);
2598 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_init)(SCREEN*);
2599 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_resume)(SCREEN*);
2600 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_wrap)(SCREEN*);
2601 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_init)(SCREEN*);
2602 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_resume)(SCREEN*);
2603 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_wrap)(SCREEN*);
2604 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_oldhash)(SCREEN*, int n, int top, int bot);
2605 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_optimize)(SCREEN*);
2606 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_set_buffer)(SCREEN*, FILE *, int);
2607 
2608 extern NCURSES_EXPORT(void)     _nc_cookie_init(SCREEN *sp);
2609 
2610 #if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
2611 extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_linedump)(SCREEN*);
2612 #endif
2613 
2614 #if USE_WIDEC_SUPPORT
2615 extern NCURSES_EXPORT(wchar_t *) NCURSES_SP_NAME(_nc_wunctrl)(SCREEN*, cchar_t *);
2616 #endif
2617 
2618 #endif /* NCURSES_SP_FUNCS */
2619 
2620 #if NCURSES_SP_FUNCS
2621 
2622 #define safe_keyname NCURSES_SP_NAME(keyname)
2623 #define safe_unctrl  NCURSES_SP_NAME(unctrl)
2624 #define safe_ungetch NCURSES_SP_NAME(ungetch)
2625 
2626 #else
2627 
2628 #define safe_keyname _nc_keyname
2629 #define safe_unctrl  _nc_unctrl
2630 #define safe_ungetch _nc_ungetch
2631 
2632 extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_keyname (SCREEN *, int);
2633 extern NCURSES_EXPORT(int) _nc_ungetch (SCREEN *, int);
2634 extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_unctrl (SCREEN *, chtype);
2635 
2636 #endif
2637 
2638 #ifdef EXP_XTERM_1005
2639 extern NCURSES_EXPORT(int) _nc_conv_to_utf8(unsigned char *, unsigned, unsigned);
2640 extern NCURSES_EXPORT(int) _nc_conv_to_utf32(unsigned *, const char *, unsigned);
2641 #endif
2642 
2643 #ifdef __cplusplus
2644 }
2645 #endif
2646 
2647 /* *INDENT-ON* */
2648 
2649 #endif /* CURSES_PRIV_H */
2650