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
56extern "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
105extern 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)
250extern 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
337typedef 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
389typedef 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}
395color_t;
396
397typedef 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)
566extern 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
579extern NCURSES_EXPORT(int *)    _nc_ptr_Lines (SCREEN *);
580extern NCURSES_EXPORT(int *)    _nc_ptr_Cols (SCREEN *);
581extern NCURSES_EXPORT(int *)    _nc_ptr_Tabsize (SCREEN *);
582extern 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>
648extern NCURSES_EXPORT(void) _nc_init_pthreads(void);
649extern NCURSES_EXPORT(void) _nc_mutex_init(pthread_mutex_t *);
650extern NCURSES_EXPORT(int) _nc_mutex_lock(pthread_mutex_t *);
651extern NCURSES_EXPORT(int) _nc_mutex_trylock(pthread_mutex_t *);
652extern 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
663weak_symbol(pthread_sigmask);
664weak_symbol(pthread_kill);
665weak_symbol(pthread_self);
666weak_symbol(pthread_equal);
667weak_symbol(pthread_mutex_init);
668weak_symbol(pthread_mutex_lock);
669weak_symbol(pthread_mutex_unlock);
670weak_symbol(pthread_mutex_trylock);
671weak_symbol(pthread_mutexattr_settype);
672weak_symbol(pthread_mutexattr_init);
673extern 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>
692weak_symbol(pthread_sigmask);
693weak_symbol(pthread_kill);
694weak_symbol(pthread_self);
695weak_symbol(pthread_equal);
696extern 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
711extern 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
782struct 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
791typedef 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
805typedef 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
817typedef struct {
818	unsigned long hashval;
819	int oldcount, newcount;
820	int oldindex, newindex;
821} HASHMAP;
822
823/*
824 * Structures for soft labels.
825 */
826
827struct _SLK;
828
829#if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
830
831typedef 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
840typedef 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
857weak_symbol(Gpm_Wgetch);
858#endif
859
860#ifdef HAVE_LIBDL
861/* link dynamically to GPM */
862typedef int *TYPE_gpm_fd;
863typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int);
864typedef int (*TYPE_Gpm_Close) (void);
865typedef 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
914struct 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
920extern 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
942extern NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen;
943
944typedef enum {
945    ewInitial = 0,
946    ewRunning,
947    ewSuspend
948} ENDWIN;
949
950typedef 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 */
966typedef 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
1249extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain;
1250extern 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
1556extern NCURSES_EXPORT(void *)	_nc_oom_malloc(size_t size);
1557extern NCURSES_EXPORT(void *)	_nc_oom_calloc(size_t nmemb, size_t size);
1558extern NCURSES_EXPORT(void *)	_nc_oom_realloc(void *ptr, size_t size);
1559extern NCURSES_EXPORT(void)	_nc_oom_free(void *ptr);
1560extern 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)
1662extern NCURSES_EXPORT(int)	_nc_use_tracef (unsigned);
1663extern 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
1676typedef 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
1702extern NCURSES_EXPORT(NCURSES_BOOL)     _nc_retrace_bool (int);
1703extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *);
1704extern NCURSES_EXPORT(SCREEN *)         _nc_retrace_sp (SCREEN *);
1705extern NCURSES_EXPORT(WINDOW *)         _nc_retrace_win (WINDOW *);
1706extern NCURSES_EXPORT(attr_t)           _nc_retrace_attr_t (attr_t);
1707extern NCURSES_EXPORT(char *)           _nc_retrace_ptr (char *);
1708extern NCURSES_EXPORT(char *)           _nc_trace_ttymode(const TTY *tty);
1709extern NCURSES_EXPORT(char *)           _nc_varargs (const char *, va_list);
1710extern NCURSES_EXPORT(chtype)           _nc_retrace_chtype (chtype);
1711extern NCURSES_EXPORT(const char *)     _nc_altcharset_name(attr_t, chtype);
1712extern NCURSES_EXPORT(const char *)     _nc_retrace_cptr (const char *);
1713extern NCURSES_EXPORT(char)             _nc_retrace_char (int);
1714extern NCURSES_EXPORT(int)              _nc_retrace_int (int);
1715extern NCURSES_EXPORT(int)              _nc_retrace_int_attr_t (attr_t);
1716extern NCURSES_EXPORT(mmask_t)          _nc_retrace_mmask_t (SCREEN *, mmask_t);
1717extern NCURSES_EXPORT(unsigned)         _nc_retrace_unsigned (unsigned);
1718extern NCURSES_EXPORT(void *)           _nc_retrace_void_ptr (void *);
1719extern NCURSES_EXPORT(void)             _nc_fifo_dump (SCREEN *);
1720
1721extern NCURSES_EXPORT(char *)           _nc_fmt_funcptr(char *, const char *, size_t);
1722
1723#if USE_REENTRANT
1724NCURSES_WRAPPED_VAR(long, _nc_outchars);
1725NCURSES_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())
1728extern NCURSES_EXPORT(void)		_nc_set_tputs_trace (const char *);
1729extern NCURSES_EXPORT(void)		_nc_count_outchars (long);
1730#else
1731extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace;
1732extern NCURSES_EXPORT_VAR(long)         _nc_outchars;
1733#endif
1734
1735extern NCURSES_EXPORT_VAR(unsigned)     _nc_tracing;
1736
1737extern NCURSES_EXPORT(char *) _nc_tracebits (void);
1738extern NCURSES_EXPORT(char *) _tracemouse (const MEVENT *);
1739extern NCURSES_EXPORT(void) _tracedump (const char *, WINDOW *);
1740
1741#if USE_WIDEC_SUPPORT
1742extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *);
1743extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int);
1744#endif
1745
1746extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int);
1747extern 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
1796extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *);
1797extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int);
1798
1799#define EMPTY_MODULE(name) \
1800extern	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)
1880extern 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)
1884extern 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
1892extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_DelCharCost) (NCURSES_SP_DCLx int _c);
1893extern 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)
1899extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx CARG_CH_T _c);
1900#else
1901extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx chtype c);
1902#endif
1903
1904#if NCURSES_SP_FUNCS
1905extern NCURSES_EXPORT(int) _nc_DelCharCost (int);
1906extern NCURSES_EXPORT(int) _nc_InsCharCost (int);
1907extern NCURSES_EXPORT(void) _nc_UpdateAttrs (CARG_CH_T);
1908#endif /* NCURSES_SP_FUNCS */
1909
1910#else
1911
1912extern 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
1933extern 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
1940extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t);
1941extern NCURSES_EXPORT(int) _nc_to_char(wint_t);
1942extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int);
1943#endif
1944
1945/* comp_captab.c */
1946typedef 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
1953typedef struct
1954{
1955	short	from;
1956	short	to;
1957	short	source;
1958} alias_table_data;
1959
1960/* comp_userdefs.c */
1961typedef 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
1972extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t);
1973#endif
1974
1975/* hardscroll.c */
1976#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
1977extern NCURSES_EXPORT(void) _nc_linedump (void);
1978#endif
1979
1980/* lib_acs.c */
1981extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */
1982extern NCURSES_EXPORT(int)  _nc_msec_cost (const char *const, int);
1983
1984/* lib_addch.c */
1985#if USE_WIDEC_SUPPORT
1986extern 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))
1991extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *);
1992#endif
1993
1994/* lib_color.c */
1995extern NCURSES_EXPORT(int) _nc_init_color(SCREEN *, int, int, int, int);
1996extern NCURSES_EXPORT(int) _nc_init_pair(SCREEN *, int, int, int);
1997extern NCURSES_EXPORT(int) _nc_pair_content(SCREEN *, int, int *, int *);
1998extern NCURSES_EXPORT(bool) _nc_reset_colors(void);
1999extern NCURSES_EXPORT(void) _nc_reserve_pairs(SCREEN *, int);
2000extern 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 */
2007extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, int *, int EVENTLIST_2nd(_nc_eventlist *));
2008
2009/* lib_insch.c */
2010extern NCURSES_EXPORT(int) _nc_insert_ch(SCREEN *, WINDOW *, chtype);
2011
2012/* lib_mvcur.c */
2013#define INFINITY	1000000	/* cost: too high to use */
2014
2015extern NCURSES_EXPORT(int) _nc_mvcur(int yold, int xold, int ynew, int xnew);
2016
2017extern NCURSES_EXPORT(void) _nc_mvcur_init (void);
2018extern NCURSES_EXPORT(void) _nc_mvcur_resume (void);
2019extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void);
2020
2021extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int);
2022
2023extern NCURSES_EXPORT(void) _nc_screen_init (void);
2024extern NCURSES_EXPORT(void) _nc_screen_resume (void);
2025extern NCURSES_EXPORT(void) _nc_screen_wrap (void);
2026
2027/* lib_mouse.c */
2028extern 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 */
2035extern NCURSES_EXPORT(char *) _nc_get_locale(void);
2036extern NCURSES_EXPORT(int)    _nc_unicode_locale(void);
2037extern NCURSES_EXPORT(int)    _nc_locale_breaks_acs(TERMINAL *);
2038extern NCURSES_EXPORT(int)    _nc_setupterm(const char *, int, int *, int);
2039extern NCURSES_EXPORT(void)   _nc_tinfo_cmdch(TERMINAL *, int);
2040
2041#ifdef USE_PTHREADS
2042extern NCURSES_EXPORT(SCREEN *) _nc_find_prescr(void);
2043extern 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 */
2050extern 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
2079extern 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
2086extern NCURSES_EXPORT(void) _nc_init_wacs(void);
2087#endif
2088
2089typedef 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 */
2097extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t);
2098extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t);
2099extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, const string_desc *);
2100extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *);
2101extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *);
2102
2103#if !HAVE_STRSTR
2104#define strstr _nc_strstr
2105extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *);
2106#endif
2107
2108/* safe_sprintf.c */
2109extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list);
2110
2111/* tries.c */
2112extern NCURSES_EXPORT(int) _nc_add_to_try (TRIES **, const char *, unsigned);
2113extern NCURSES_EXPORT(char *) _nc_expand_try (TRIES *, unsigned, int *, size_t);
2114extern NCURSES_EXPORT(int) _nc_remove_key (TRIES **, unsigned);
2115extern NCURSES_EXPORT(int) _nc_remove_string (TRIES **, const char *);
2116
2117/* elsewhere ... */
2118extern NCURSES_EXPORT(SCREEN *) _nc_screen_of (WINDOW *);
2119extern NCURSES_EXPORT(TERMINAL*) _nc_get_cur_term (void);
2120extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int);
2121extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t);
2122extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *);
2123extern NCURSES_EXPORT(char *) _nc_tracechar (SCREEN *, int);
2124extern NCURSES_EXPORT(char *) _nc_tracemouse (SCREEN *, MEVENT const *);
2125extern NCURSES_EXPORT(char *) _nc_trace_mmask_t (SCREEN *, mmask_t);
2126extern NCURSES_EXPORT(int) _nc_access (const char *, int);
2127extern NCURSES_EXPORT(int) _nc_baudrate (int);
2128extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *);
2129extern NCURSES_EXPORT(int) _nc_getenv_num (const char *);
2130extern NCURSES_EXPORT(int) _nc_keypad (SCREEN *, int);
2131extern NCURSES_EXPORT(int) _nc_ospeed (int);
2132extern NCURSES_EXPORT(int) _nc_outch (int);
2133extern NCURSES_EXPORT(int) _nc_putchar (int);
2134extern NCURSES_EXPORT(int) _nc_putp(const char *, const char *);
2135extern NCURSES_EXPORT(int) _nc_putp_flush(const char *, const char *);
2136extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE2 *const);
2137extern NCURSES_EXPORT(int) _nc_setup_tinfo(const char *, TERMTYPE2 *);
2138extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, int, int);
2139extern NCURSES_EXPORT(int) _nc_timed_wait (SCREEN *, int, int, int * EVENTLIST_2nd(_nc_eventlist *));
2140extern NCURSES_EXPORT(int) _nc_trans_string (char *, const char *);
2141extern NCURSES_EXPORT(void) _nc_init_termtype (TERMTYPE2 *const);
2142extern NCURSES_EXPORT(void) _nc_do_color (int, int, int, NCURSES_OUTC);
2143extern NCURSES_EXPORT(void) _nc_flush (void);
2144extern NCURSES_EXPORT(void) _nc_free_entry (ENTRY *, TERMTYPE2 *);
2145extern NCURSES_EXPORT(void) _nc_freeall (void);
2146extern NCURSES_EXPORT(void) _nc_hash_map (void);
2147extern NCURSES_EXPORT(void) _nc_init_keytry (SCREEN *);
2148extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *);
2149extern NCURSES_EXPORT(void) _nc_make_oldhash (int i);
2150extern NCURSES_EXPORT(void) _nc_reset_input (FILE *, char *);
2151extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot);
2152extern NCURSES_EXPORT(void) _nc_scroll_optimize (void);
2153extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, int);
2154extern NCURSES_EXPORT(void) _nc_setenv_num (const char *, int);
2155extern NCURSES_EXPORT(void) _nc_signal_handler (int);
2156extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *);
2157extern NCURSES_EXPORT(void) _nc_trace_tries (TRIES *);
2158
2159#if NCURSES_EXT_NUMBERS
2160extern NCURSES_EXPORT(const TERMTYPE2 *) _nc_fallback2 (const char *);
2161#else
2162#define _nc_fallback2(tp) _nc_fallback(tp)
2163#endif
2164
2165extern NCURSES_EXPORT(void) _nc_copy_termtype(TERMTYPE *, const TERMTYPE *);
2166
2167#if NCURSES_EXT_NUMBERS
2168extern NCURSES_EXPORT(void) _nc_copy_termtype2 (TERMTYPE2 *, const TERMTYPE2 *);
2169extern 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
2179extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void);
2180extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void);
2181extern NCURSES_EXPORT(void) _nc_codes_leaks(void);
2182extern NCURSES_EXPORT(void) _nc_comp_captab_leaks(void);
2183extern NCURSES_EXPORT(void) _nc_comp_error_leaks(void);
2184extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void);
2185extern NCURSES_EXPORT(void) _nc_comp_userdefs_leaks(void);
2186extern NCURSES_EXPORT(void) _nc_db_iterator_leaks(void);
2187extern NCURSES_EXPORT(void) _nc_keyname_leaks(void);
2188extern NCURSES_EXPORT(void) _nc_names_leaks(void);
2189extern NCURSES_EXPORT(void) _nc_tgetent_leak(const TERMINAL *);
2190extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void);
2191#endif
2192
2193#if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2194extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T);
2195extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T);
2196extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, int const, int const, NCURSES_CH_T);
2197#endif
2198
2199#if USE_WIDEC_SUPPORT
2200extern 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))
2204extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *);
2205#endif
2206
2207#if USE_SIZECHANGE
2208extern NCURSES_EXPORT(void) _nc_update_screensize (SCREEN *);
2209#endif
2210
2211#if HAVE_RESIZETERM
2212extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *);
2213#else
2214#define _nc_resize_margins(wp) /* nothing */
2215#endif
2216
2217#ifdef NCURSES_WGETCH_EVENTS
2218extern 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 */
2233extern 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
2237extern int __MINGW_NOTHROW _nc_mbtowc(wchar_t *, const char *, size_t);
2238#define mbtowc(pwc,s,n) _nc_mbtowc(pwc,s,n)
2239
2240extern 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 */
2247extern 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
2263make 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
2272extern int vsscanf(const char *str, const char *format, va_list __arg);
2273#endif
2274
2275/* scroll indices */
2276extern 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()
2290extern NCURSES_EXPORT(SCREEN *) _nc_screen (void);
2291extern NCURSES_EXPORT(int)      _nc_alloc_screen (void);
2292extern 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 */
2296extern 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
2316extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int);
2317extern 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
2341extern NCURSES_EXPORT(int) _nc_set_tty_mode(TTY *);
2342extern 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
2363typedef 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
2385typedef 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
2425typedef 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
2447extern NCURSES_EXPORT_VAR(const color_t*) _nc_cga_palette;
2448extern NCURSES_EXPORT_VAR(const color_t*) _nc_hls_palette;
2449
2450extern NCURSES_EXPORT(int)      _nc_get_driver(TERMINAL_CONTROL_BLOCK*, const char*, int*);
2451extern 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
2462extern NCURSES_EXPORT(int)      TINFO_HAS_KEY(SCREEN*, int);
2463extern NCURSES_EXPORT(int)      TINFO_DOUPDATE(SCREEN *);
2464extern 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
2479extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, TERMINAL *, int *, int *);
2480extern 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 */
2488extern 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
2498extern 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>
2503extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_WIN_DRIVER;
2504extern NCURSES_EXPORT(int)  _nc_mingw_isatty(int fd);
2505extern NCURSES_EXPORT(int)  _nc_mingw_isconsole(int fd);
2506extern NCURSES_EXPORT(int) _nc_mingw_console_read(
2507    SCREEN *sp,
2508    HANDLE  fd,
2509    int *buf);
2510extern NCURSES_EXPORT(int) _nc_mingw_testmouse(
2511    SCREEN * sp,
2512    HANDLE fd,
2513    int delay EVENTLIST_2nd(_nc_eventlist*));
2514#else
2515#endif
2516extern 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
2554extern NCURSES_EXPORT(WINDOW *) _nc_curscr_of(SCREEN*);
2555extern NCURSES_EXPORT(WINDOW *) _nc_newscr_of(SCREEN*);
2556extern NCURSES_EXPORT(WINDOW *) _nc_stdscr_of(SCREEN*);
2557extern NCURSES_EXPORT(int)      _nc_outc_wrapper(SCREEN*,int);
2558
2559#if USE_REENTRANT
2560extern NCURSES_EXPORT(int)       NCURSES_SP_NAME(_nc_TABSIZE)(SCREEN*);
2561extern NCURSES_EXPORT(char *)    NCURSES_SP_NAME(longname)(SCREEN*);
2562#endif
2563
2564#if NCURSES_EXT_FUNCS
2565extern 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 */
2572extern NCURSES_EXPORT(TERMINAL*) NCURSES_SP_NAME(_nc_get_cur_term) (SCREEN *sp);
2573extern NCURSES_EXPORT(WINDOW *) NCURSES_SP_NAME(_nc_makenew) (SCREEN*, int, int, int, int, int);
2574extern NCURSES_EXPORT(bool)     NCURSES_SP_NAME(_nc_reset_colors)(SCREEN*);
2575extern NCURSES_EXPORT(char *)   NCURSES_SP_NAME(_nc_printf_string)(SCREEN*, const char *, va_list);
2576extern NCURSES_EXPORT(chtype)   NCURSES_SP_NAME(_nc_acs_char)(SCREEN*,int);
2577extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_get_tty_mode)(SCREEN*,TTY*);
2578extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mcprint)(SCREEN*,char*, int);
2579extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_msec_cost)(SCREEN*, const char *, int);
2580extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mvcur)(SCREEN*, int, int, int, int);
2581extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_outch)(SCREEN*, int);
2582extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putchar)(SCREEN*, int);
2583extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp)(SCREEN*, const char *, const char*);
2584extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp_flush)(SCREEN*, const char *, const char *);
2585extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_ripoffline)(SCREEN*, int, int (*)(WINDOW *,int));
2586extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_scrolln)(SCREEN*, int, int, int, int);
2587extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tty_mode)(SCREEN*, TTY*);
2588extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_setupscreen)(SCREEN**, int, int, FILE *, int, int);
2589extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_tgetent)(SCREEN*,char*,const char *);
2590extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_color)(SCREEN*, int, int, int, NCURSES_SP_OUTC);
2591extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_xmc_glitch)(SCREEN*, attr_t);
2592extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_flush)(SCREEN*);
2593extern GCC_NORETURN NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_free_and_exit)(SCREEN*, int);
2594extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_freeall)(SCREEN*);
2595extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_hash_map)(SCREEN*);
2596extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_init_acs)(SCREEN*);
2597extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_make_oldhash)(SCREEN*, int i);
2598extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_init)(SCREEN*);
2599extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_resume)(SCREEN*);
2600extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_wrap)(SCREEN*);
2601extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_init)(SCREEN*);
2602extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_resume)(SCREEN*);
2603extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_wrap)(SCREEN*);
2604extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_oldhash)(SCREEN*, int n, int top, int bot);
2605extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_optimize)(SCREEN*);
2606extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_set_buffer)(SCREEN*, FILE *, int);
2607
2608extern NCURSES_EXPORT(void)     _nc_cookie_init(SCREEN *sp);
2609
2610#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
2611extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_linedump)(SCREEN*);
2612#endif
2613
2614#if USE_WIDEC_SUPPORT
2615extern 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
2632extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_keyname (SCREEN *, int);
2633extern NCURSES_EXPORT(int) _nc_ungetch (SCREEN *, int);
2634extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_unctrl (SCREEN *, chtype);
2635
2636#endif
2637
2638#ifdef EXP_XTERM_1005
2639extern NCURSES_EXPORT(int) _nc_conv_to_utf8(unsigned char *, unsigned, unsigned);
2640extern 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