1/****************************************************************************
2 * Copyright 2018-2023,2024 Thomas E. Dickey                                *
3 * Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
4 *                                                                          *
5 * Permission is hereby granted, free of charge, to any person obtaining a  *
6 * copy of this software and associated documentation files (the            *
7 * "Software"), to deal in the Software without restriction, including      *
8 * without limitation the rights to use, copy, modify, merge, publish,      *
9 * distribute, distribute with modifications, sublicense, and/or sell       *
10 * copies of the Software, and to permit persons to whom the Software is    *
11 * furnished to do so, subject to the following conditions:                 *
12 *                                                                          *
13 * The above copyright notice and this permission notice shall be included  *
14 * in all copies or substantial portions of the Software.                   *
15 *                                                                          *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23 *                                                                          *
24 * Except as contained in this notice, the name(s) of the above copyright   *
25 * holders shall not be used in advertising or otherwise to promote the     *
26 * sale, use or other dealings in this Software without prior written       *
27 * authorization.                                                           *
28 ****************************************************************************/
29
30/****************************************************************************
31 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
32 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
33 *     and: Thomas E. Dickey                        1996-on                 *
34 *     and: Juergen Pfeifer                                                 *
35 ****************************************************************************/
36
37/*
38 * $Id: curses.priv.h,v 1.687 2024/04/23 22:28:25 tom Exp $
39 *
40 *	curses.priv.h
41 *
42 *	Header file for curses library objects which are private to
43 *	the library.
44 *
45 */
46
47#ifndef CURSES_PRIV_H
48#define CURSES_PRIV_H 1
49/* *INDENT-OFF* */
50
51#include <ncurses_dll.h>
52
53#ifdef __cplusplus
54extern "C" {
55#endif
56
57#include <ncurses_cfg.h>
58
59#if USE_RCS_IDS
60#define MODULE_ID(id) static const char Ident[] = id;
61#else
62#define MODULE_ID(id) /*nothing*/
63#endif
64
65#include <stddef.h>		/* for offsetof */
66#include <stdlib.h>
67#include <string.h>
68#include <sys/types.h>
69#include <sys/stat.h>
70
71#if HAVE_UNISTD_H
72#include <unistd.h>
73#endif
74
75#include <assert.h>
76#include <stdio.h>
77
78#include <errno.h>
79
80#if defined __hpux
81#  ifndef EILSEQ
82#    define EILSEQ 47
83#  endif
84#endif
85
86#if DECL_ERRNO
87extern int errno;
88#endif
89
90/* Some Windows related defines */
91#undef _NC_WINDOWS
92#if (defined(_WIN32) || defined(_WIN64))
93#define _NC_WINDOWS
94#else
95#undef EXP_WIN32_DRIVER
96#endif
97
98#undef _NC_MINGW
99#if (defined(__MINGW32__) || defined(__MINGW64__))
100#define _NC_MINGW
101#endif
102
103#undef _NC_MSC
104#ifdef _MSC_VER
105#define _NC_MSC
106#endif
107
108/* Some systems have a broken 'select()', but workable 'poll()'.  Use that */
109#if HAVE_WORKING_POLL
110#define USE_FUNC_POLL 1
111#if HAVE_POLL_H
112#include <poll.h>
113#else
114#include <sys/poll.h>
115#endif
116#else
117#define USE_FUNC_POLL 0
118#endif
119
120#if HAVE_INTTYPES_H
121# include <inttypes.h>
122#else
123# if HAVE_STDINT_H
124#  include <stdint.h>
125# endif
126#endif
127
128#if (defined(__USE_MINGW_ANSI_STDIO) && __USE_MINGW_ANSI_STDIO != 0) && (defined(__GNUC__) && (__GNUC__ < 12))
129# undef PRIxPTR		/* gcc bug fixed in 12.x */
130# define PRIxPTR	"lX"
131# define CASTxPTR(n)    (unsigned long)(intptr_t)(void*)(n)
132#else
133# define CASTxPTR(n)    (intptr_t)(n)
134#endif
135
136#ifndef PRIxPTR
137# define PRIxPTR	"lx"
138# undef CASTxPTR
139# define CASTxPTR(n)    (long)(void*)(n)
140#endif
141
142/* include signal.h before curses.h to work-around defect in glibc 2.1.3 */
143#include <signal.h>
144
145/* Alessandro Rubini's GPM (general-purpose mouse) */
146#if HAVE_LIBGPM && HAVE_GPM_H
147#define USE_GPM_SUPPORT 1
148#else
149#define USE_GPM_SUPPORT 0
150#endif
151
152/* QNX mouse support */
153#if defined(__QNX__) && !defined(__QNXNTO__)
154#define USE_QNX_MOUSE 1
155#else
156#define USE_QNX_MOUSE 0
157#endif
158
159/* EMX mouse support */
160#ifdef __EMX__
161#define USE_EMX_MOUSE 1
162#else
163#define USE_EMX_MOUSE 0
164#endif
165
166/* kLIBC keyboard/mouse support */
167#if defined(__OS2__) && defined(__KLIBC__)
168#define USE_KLIBC_KBD   1
169#define USE_KLIBC_MOUSE 1
170#else
171#define USE_KLIBC_KBD   0
172#define USE_KLIBC_MOUSE 0
173#endif
174
175#define DEFAULT_MAXCLICK 166
176#define EV_MAX		8	/* size of mouse circular event queue */
177
178/*
179 * If we don't have signals to support it, don't add a sigwinch handler.
180 * In any case, resizing is an extended feature.  Use it if we've got it.
181 */
182#if !NCURSES_EXT_FUNCS
183#undef HAVE_SIZECHANGE
184#define HAVE_SIZECHANGE 0
185#endif
186
187#if HAVE_SIZECHANGE && USE_SIGWINCH && defined(SIGWINCH)
188#define USE_SIZECHANGE 1
189#else
190#define USE_SIZECHANGE 0
191#undef USE_SIGWINCH
192#define USE_SIGWINCH 0
193#endif
194
195/*
196 * When building in the MSYS2 environment, the automatic discovery of
197 * the path separator in configure doesn't work properly. So, if building
198 * for MinGW, we enforce the correct Windows PATH separator
199 */
200#if defined(_NC_WINDOWS)
201#  ifdef NCURSES_PATHSEP
202#    undef NCURSES_PATHSEP
203#  endif
204#  define NCURSES_PATHSEP ';'
205#endif
206
207/*
208 * When the standard handles have been redirected (such as inside a text editor
209 * or the less utility), keystrokes must be read from the console rather than
210 * the redirected handle.  The standard output handle suffers from a similar
211 * problem.  Both handles are not closed once opened.  The console shall be
212 * considered reachable throughout the process.
213 */
214#if defined(_NC_WINDOWS)
215#define GetDirectHandle(fileName, shareMode) \
216	CreateFile(TEXT(fileName), \
217		   GENERIC_READ | GENERIC_WRITE, \
218		   shareMode, \
219		   0, \
220		   OPEN_EXISTING, \
221		   0, \
222		   0)
223#endif
224
225/*
226 * Not all platforms have memmove; some have an equivalent bcopy.  (Some may
227 * have neither).
228 */
229#if USE_OK_BCOPY
230#define memmove(d,s,n) bcopy(s,d,n)
231#elif USE_MY_MEMMOVE
232#define memmove(d,s,n) _nc_memmove(d,s,n)
233extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
234#endif
235
236/*
237 * If we have va_copy(), use it for assigning va_list's.
238 */
239#if defined(HAVE___VA_COPY)
240#define begin_va_copy(dst,src)	__va_copy(dst, src)
241#define end_va_copy(dst)	va_end(dst)
242#elif defined(va_copy) || defined(HAVE_VA_COPY)
243#define begin_va_copy(dst,src)	va_copy(dst, src)
244#define end_va_copy(dst)	va_end(dst)
245#else
246#define begin_va_copy(dst,src) (dst) = (src)
247#define end_va_copy(dst)	/* nothing */
248#endif
249
250/*
251 * Either/both S_ISxxx and/or S_IFxxx are defined in sys/types.h; some systems
252 * lack one or the other.
253 */
254#ifndef S_ISDIR
255#define S_ISDIR(mode) ((mode & S_IFMT) == S_IFDIR)
256#endif
257
258#ifndef S_ISREG
259#define S_ISREG(mode) ((mode & S_IFMT) == S_IFREG)
260#endif
261
262/*
263 * POSIX ignores the "b", which c89 specified.  Some very old systems do not
264 * accept it.
265 */
266#if USE_FOPEN_BIN_R
267#define BIN_R	"rb"
268#define BIN_W	"wb"
269#else
270#define BIN_R	"r"
271#define BIN_W	"w"
272#endif
273
274/*
275 * Scroll hints are useless when hashmap is used
276 */
277#if !USE_SCROLL_HINTS
278#if !USE_HASHMAP
279#define USE_SCROLL_HINTS 1
280#else
281#define USE_SCROLL_HINTS 0
282#endif
283#endif
284
285#if USE_SCROLL_HINTS
286#define if_USE_SCROLL_HINTS(stmt) stmt
287#else
288#define if_USE_SCROLL_HINTS(stmt) /*nothing*/
289#endif
290
291#include <nc_string.h>
292
293/*
294 * Options for terminal drivers, etc...
295 */
296#ifdef USE_TERM_DRIVER
297#define NO_TERMINAL "unknown"
298#define USE_SP_RIPOFF     1
299#define USE_SP_TERMTYPE   1
300#else
301#define NO_TERMINAL 0
302#endif
303
304#define VALID_TERM_ENV(term_env, no_terminal) \
305	(term_env = (NonEmpty(term_env) \
306		     ? term_env \
307		     : no_terminal), \
308	 NonEmpty(term_env))
309
310/*
311 * Originally a terminal-driver option, the window-list is per-screen to allow
312 * freeing memory used for windows when a screen is deleted.
313 */
314#define USE_SP_WINDOWLIST 1
315
316/*
317 * Note:  ht/cbt expansion flakes out randomly under Linux 1.1.47, but only
318 * when we're throwing control codes at the screen at high volume.  To see
319 * this, re-enable USE_HARD_TABS and run worm for a while.  Other systems
320 * probably don't want to define this either due to uncertainties about tab
321 * delays and expansion in raw mode.
322 */
323
324#define TRIES struct tries
325typedef TRIES {
326	TRIES    *child;            /* ptr to child.  NULL if none          */
327	TRIES    *sibling;          /* ptr to sibling.  NULL if none        */
328	unsigned char    ch;        /* character at this node               */
329	unsigned short   value;     /* code of string so far.  0 if none.   */
330#undef TRIES
331} TRIES;
332
333/*
334 * Common/troublesome character definitions
335 */
336#define StringOf(ch) {ch, 0}
337
338#define CSI_CHR 0x9b
339#define ESC_CHR 0x1b
340
341#define L_BLOCK '['
342#define R_BLOCK ']'
343#define L_BRACE '{'
344#define R_BRACE '}'
345#define S_QUOTE '\''
346#define D_QUOTE '"'
347
348#define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~"
349
350/*
351 * Structure for palette tables
352 */
353
354#define MAXCOLUMNS    135
355#define MAXLINES      66
356#define FIFO_SIZE     MAXCOLUMNS+2  /* for nocbreak mode input */
357
358#define ACS_LEN       128
359
360#define WINDOWLIST struct _win_list
361
362#if USE_WIDEC_SUPPORT
363#define _nc_bkgd    _bkgrnd
364#else
365#undef _XOPEN_SOURCE_EXTENDED
366#undef _XPG5
367#define _nc_bkgd    _bkgd
368#define wgetbkgrnd(win, wch)	((*wch = win->_bkgd) != 0 ? OK : ERR)
369#define wbkgrnd	    wbkgd
370#endif
371
372#undef NCURSES_OPAQUE
373#define NCURSES_INTERNALS 1
374#define NCURSES_OPAQUE 0
375
376#include <curses.h>	/* we'll use -Ipath directive to get the right one! */
377
378#if !(defined(NCURSES_WGETCH_EVENTS) && defined(NEED_KEY_EVENT))
379#undef KEY_EVENT		/* reduce compiler-warnings with Visual C++ */
380#endif
381
382typedef struct
383{
384    int red, green, blue;	/* what color_content() returns */
385    int r, g, b;		/* params to init_color() */
386    int init;			/* true if we called init_color() */
387}
388color_t;
389
390typedef union {
391    struct {
392	unsigned char red;
393	unsigned char green;
394	unsigned char blue;
395    } bits;			/* bits per color-value in RGB */
396    unsigned value;
397} rgb_bits_t;
398
399/*
400 * If curses.h did not expose the SCREEN-functions, then we do not need the
401 * parameter in the corresponding unextended functions.
402 */
403
404#define USE_SP_FUNC_SUPPORT     NCURSES_SP_FUNCS
405#define USE_EXT_SP_FUNC_SUPPORT (NCURSES_SP_FUNCS && NCURSES_EXT_FUNCS)
406
407#if NCURSES_SP_FUNCS
408#define SP_PARM         sp	/* use parameter */
409#define NCURSES_SP_ARG          SP_PARM
410#define NCURSES_SP_DCL  SCREEN *NCURSES_SP_ARG
411#define NCURSES_SP_DCL0 NCURSES_SP_DCL
412#define NCURSES_SP_ARGx         NCURSES_SP_ARG,
413#define NCURSES_SP_DCLx SCREEN *NCURSES_SP_ARGx
414#else
415#define SP_PARM         SP	/* use global variable */
416#define NCURSES_SP_ARG
417#define NCURSES_SP_DCL
418#define NCURSES_SP_DCL0 void
419#define NCURSES_SP_ARGx
420#define NCURSES_SP_DCLx
421#endif
422
423#include <nc_panel.h>
424
425#include <term.priv.h>
426#include <nc_termios.h>
427
428#define IsPreScreen(sp)      (((sp) != 0) && sp->_prescreen)
429#define HasTerminal(sp)      (((sp) != 0) && (0 != ((sp)->_term)))
430#define IsValidScreen(sp)    (HasTerminal(sp) && !IsPreScreen(sp))
431
432#if USE_REENTRANT
433#define CurTerm              _nc_prescreen._cur_term
434#else
435#define CurTerm              cur_term
436#endif
437
438#if NCURSES_SP_FUNCS
439#define TerminalOf(sp)       ((sp) ? ((sp)->_term ? (sp)->_term : CurTerm) : CurTerm)
440#else
441#define TerminalOf(sp)       CurTerm
442#endif
443
444/*
445 * The legacy layout for TERMTYPE uses "short" for all of the numbers.  Moving
446 * past that, numeric capabilities can be "int" by using a TERMTYPE2 structure
447 * in TERMINAL, and doing most of the internal work using TERMTYPE2.  There are
448 * a few places (mostly to expose the legacy layout) where the distinction
449 * needs attention.
450 */
451#if NCURSES_EXT_COLORS && HAVE_INIT_EXTENDED_COLOR
452#define NCURSES_EXT_NUMBERS  1
453#define NCURSES_INT2         int
454#define SIZEOF_INT2          4
455#define TerminalType(tp)     (tp)->type2
456#else
457#define NCURSES_EXT_NUMBERS  0
458#define NCURSES_INT2         short
459#define SIZEOF_INT2          2
460#define TerminalType(tp)     (tp)->type
461#endif
462
463#define SIZEOF_SHORT         2
464
465#ifdef CUR
466#undef CUR
467#define CUR TerminalType(cur_term).
468#endif
469
470/*
471 * Reduce dependency on cur_term global by using terminfo data from SCREEN's
472 * pointer to this data.
473 */
474#ifdef USE_SP_TERMTYPE
475#undef CUR
476#endif
477
478#define SP_TERMTYPE TerminalType(TerminalOf(sp)).
479
480#include <term_entry.h>
481
482#include <nc_tparm.h>
483
484/*
485 * Simplify ifdef's for the "*_ATTR" macros in case italics are not configured.
486 */
487#if defined(A_ITALIC) && defined(exit_italics_mode)
488#define USE_ITALIC 1
489#else
490#define USE_ITALIC 0
491#undef  A_ITALIC
492#define A_ITALIC 0
493#endif
494
495/*
496 * Use these macros internally, to make tracing less verbose.  But leave the
497 * option for compiling the tracing into the library.
498 */
499#if 1
500#define ColorPair(n)		(NCURSES_BITS(n, 0) & A_COLOR)
501#define PairNumber(a)		(NCURSES_CAST(int,(((unsigned long)(a) & A_COLOR) >> NCURSES_ATTR_SHIFT)))
502#else
503#define ColorPair(pair)		COLOR_PAIR(pair)
504#define PairNumber(attr)	PAIR_NUMBER(attr)
505#endif
506
507#define unColor(n)		unColor2(AttrOf(n))
508#define unColor2(a)		((a) & ALL_BUT_COLOR)
509
510/*
511 * Extended-colors stores the color pair in a separate struct-member than the
512 * attributes.  But for compatibility, we handle most cases where a program
513 * written for non-extended colors stores the color in the attributes by
514 * checking for a color pair in both places.
515 */
516#if NCURSES_EXT_COLORS
517#define if_EXT_COLORS(stmt)	stmt
518#define SetPair(value,p)	SetPair2((value).ext_color, AttrOf(value), p)
519#define SetPair2(c,a,p)		c = (p), \
520				a = (unColor2(a) | ColorPair(oldColor(c)))
521#define GetPair(value)		GetPair2((value).ext_color, AttrOf(value))
522#define GetPair2(c,a)		((c) ? (c) : PairNumber(a))
523#define oldColor(p)		(((p) > 255) ? 255 : (p))
524#define GET_WINDOW_PAIR(w)	GetPair2((w)->_color, (w)->_attrs)
525#define SET_WINDOW_PAIR(w,p)	(w)->_color = (p)
526#define SameAttrOf(a,b)		(AttrOf(a) == AttrOf(b) && GetPair(a) == GetPair(b))
527
528#define VIDPUTS(sp,attr,pair)	do { \
529				    int vid_pair = pair; \
530				    NCURSES_SP_NAME(vid_puts)( \
531					NCURSES_SP_ARGx attr, \
532					(NCURSES_PAIRS_T) pair, \
533					&vid_pair, \
534					NCURSES_OUTC_FUNC); \
535				} while (0)
536
537#else /* !NCURSES_EXT_COLORS */
538
539#define if_EXT_COLORS(stmt)	/* nothing */
540#define SetPair(value,p)	RemAttr(value, A_COLOR), \
541				SetAttr(value, AttrOf(value) | ColorPair(p))
542#define GetPair(value)		PairNumber(AttrOf(value))
543#define GET_WINDOW_PAIR(w)	PairNumber(WINDOW_ATTRS(w))
544#define SET_WINDOW_PAIR(w,p)	WINDOW_ATTRS(w) &= ALL_BUT_COLOR, \
545				WINDOW_ATTRS(w) |= ColorPair(p)
546#define SameAttrOf(a,b)		(AttrOf(a) == AttrOf(b))
547
548#define VIDPUTS(sp,attr,pair)	NCURSES_SP_NAME(vidputs)(NCURSES_SP_ARGx attr, NCURSES_OUTC_FUNC)
549
550#endif /* NCURSES_EXT_COLORS */
551
552#define NCURSES_OUTC_FUNC       NCURSES_SP_NAME(_nc_outch)
553#define NCURSES_PUTP2(name,value)    NCURSES_SP_NAME(_nc_putp)(NCURSES_SP_ARGx name, value)
554#define NCURSES_PUTP2_FLUSH(name,value)    NCURSES_SP_NAME(_nc_putp_flush)(NCURSES_SP_ARGx name, value)
555
556#if NCURSES_NO_PADDING
557#define GetNoPadding(sp)	((sp) ? (sp)->_no_padding : _nc_prescreen._no_padding)
558#define SetNoPadding(sp)	_nc_set_no_padding(sp)
559extern NCURSES_EXPORT(void)     _nc_set_no_padding(SCREEN *);
560#else
561#define GetNoPadding(sp)	FALSE
562#define SetNoPadding(sp)	/*nothing*/
563#endif
564
565#define WINDOW_ATTRS(w)		((w)->_attrs)
566
567#define SCREEN_ATTRS(s)		(*((s)->_current_attr))
568#define GET_SCREEN_PAIR(s)	GetPair(SCREEN_ATTRS(s))
569#define SET_SCREEN_PAIR(s,p)	SetPair(SCREEN_ATTRS(s), p)
570
571#if USE_REENTRANT || NCURSES_SP_FUNCS
572extern NCURSES_EXPORT(int *)    _nc_ptr_Lines (SCREEN *);
573extern NCURSES_EXPORT(int *)    _nc_ptr_Cols (SCREEN *);
574extern NCURSES_EXPORT(int *)    _nc_ptr_Tabsize (SCREEN *);
575extern NCURSES_EXPORT(int *)    _nc_ptr_Escdelay (SCREEN *);
576#endif
577
578#if USE_REENTRANT
579
580#define ptrLines(sp)         (sp ? &(sp->_LINES) : &(_nc_prescreen._LINES))
581#define ptrCols(sp)          (sp ? &(sp->_COLS) : &(_nc_prescreen._COLS))
582#define ptrTabsize(sp)       (sp ? &(sp->_TABSIZE) : &(_nc_prescreen._TABSIZE))
583#define ptrEscdelay(sp)      (sp ? &(sp->_ESCDELAY) : &(_nc_prescreen._ESCDELAY))
584
585#define SET_LINES(value)     *_nc_ptr_Lines(SP_PARM) = value
586#define SET_COLS(value)      *_nc_ptr_Cols(SP_PARM) = value
587#define SET_TABSIZE(value)   *_nc_ptr_Tabsize(SP_PARM) = value
588#define SET_ESCDELAY(value)  *_nc_ptr_Escdelay(SP_PARM) = value
589
590#else
591
592#define ptrLines(sp)         &LINES
593#define ptrCols(sp)          &COLS
594#define ptrTabsize(sp)       &TABSIZE
595#define ptrEscdelay(sp)      &ESCDELAY
596
597#define SET_LINES(value)     LINES = value
598#define SET_COLS(value)      COLS = value
599#define SET_TABSIZE(value)   TABSIZE = value
600#define SET_ESCDELAY(value)  ESCDELAY = value
601
602#endif
603
604#define IS_SUBWIN(w)         ((w)->_flags & _SUBWIN)
605#define IS_PAD(w)            ((w)->_flags & _ISPAD)
606#define IS_WRAPPED(w)        ((w)->_flags & _WRAPPED)
607
608#define HasHardTabs()	(NonEmpty(clear_all_tabs) && NonEmpty(set_tab))
609
610#define TR_MUTEX(data) _tracef("%s@%d: me:%08lX COUNT:%2u/%2d/%6d/%2d/%s%9u: " #data, \
611	    __FILE__, __LINE__, \
612	    (unsigned long) (pthread_self()), \
613	    data.__data.__lock, \
614	    data.__data.__count, \
615	    data.__data.__owner, \
616	    data.__data.__kind, \
617	    (data.__data.__nusers > 5) ? " OOPS " : "", \
618	    data.__data.__nusers)
619#define TR_GLOBAL_MUTEX(name) TR_MUTEX(_nc_globals.mutex_##name)
620
621#if USE_WEAK_SYMBOLS
622#if defined(__GNUC__)
623#  if defined __USE_ISOC99
624#    define _cat_pragma(exp)	_Pragma(#exp)
625#    define _weak_pragma(exp)	_cat_pragma(weak name)
626#  else
627#    define _weak_pragma(exp)
628#  endif
629#  define _declare(name)	__extension__ extern __typeof__(name) name
630#  define weak_symbol(name)	_weak_pragma(name) _declare(name) __attribute__((weak))
631#else
632#  undef USE_WEAK_SYMBOLS
633#  define USE_WEAK_SYMBOLS 0
634#endif
635#endif
636
637#ifdef USE_PTHREADS
638
639#if USE_REENTRANT
640#include <pthread.h>
641extern NCURSES_EXPORT(void) _nc_init_pthreads(void);
642extern NCURSES_EXPORT(void) _nc_mutex_init(pthread_mutex_t *);
643extern NCURSES_EXPORT(int) _nc_mutex_lock(pthread_mutex_t *);
644extern NCURSES_EXPORT(int) _nc_mutex_trylock(pthread_mutex_t *);
645extern NCURSES_EXPORT(int) _nc_mutex_unlock(pthread_mutex_t *);
646#define _nc_lock_global(name)	_nc_mutex_lock(&_nc_globals.mutex_##name)
647#define _nc_try_global(name)    _nc_mutex_trylock(&_nc_globals.mutex_##name)
648#define _nc_unlock_global(name)	_nc_mutex_unlock(&_nc_globals.mutex_##name)
649
650#else
651#error POSIX threads requires --enable-reentrant option
652#endif
653
654#ifdef USE_PTHREADS
655#  if USE_WEAK_SYMBOLS
656weak_symbol(pthread_sigmask);
657weak_symbol(pthread_kill);
658weak_symbol(pthread_self);
659weak_symbol(pthread_equal);
660weak_symbol(pthread_mutex_init);
661weak_symbol(pthread_mutex_lock);
662weak_symbol(pthread_mutex_unlock);
663weak_symbol(pthread_mutex_trylock);
664weak_symbol(pthread_mutexattr_settype);
665weak_symbol(pthread_mutexattr_init);
666extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
667#    undef  sigprocmask
668#    define sigprocmask(a, b, c) _nc_sigprocmask(a, b, c)
669#    define GetThreadID() (((pthread_self)) ? pthread_self() : (pthread_t) getpid())
670#  else
671#    define GetThreadID() pthread_self()
672#  endif
673#endif
674
675#if HAVE_NANOSLEEP
676#undef HAVE_NANOSLEEP
677#define HAVE_NANOSLEEP 0	/* nanosleep suspends all threads */
678#endif
679
680#else /* !USE_PTHREADS */
681
682#if USE_PTHREADS_EINTR
683#  if USE_WEAK_SYMBOLS
684#include <pthread.h>
685weak_symbol(pthread_sigmask);
686weak_symbol(pthread_kill);
687weak_symbol(pthread_self);
688weak_symbol(pthread_equal);
689extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
690#    undef  sigprocmask
691#    define sigprocmask(a, b, c) _nc_sigprocmask(a, b, c)
692#  endif
693#endif /* USE_PTHREADS_EINTR */
694
695#define _nc_init_pthreads()	/* nothing */
696#define _nc_mutex_init(obj)	/* nothing */
697
698#define _nc_lock_global(name)	/* nothing */
699#define _nc_try_global(name)    0
700#define _nc_unlock_global(name)	/* nothing */
701#endif /* USE_PTHREADS */
702
703#if USE_PTHREADS_EINTR
704extern NCURSES_EXPORT(void) _nc_set_read_thread(bool);
705#else
706#define _nc_set_read_thread(enable)	/* nothing */
707#endif
708
709/*
710 * When using sp-funcs, locks are targeted to SCREEN-level granularity.
711 * So the locking is done in the non-sp-func (which calls the sp-func) rather
712 * than in the sp-func itself.
713 *
714 * Use the _nc_nonsp_XXX functions in the function using "NCURSES_SP_NAME()".
715 * Use the _nc_sp_XXX functions in the function using "#if NCURSES_SP_FUNCS".
716 */
717#if NCURSES_SP_FUNCS
718
719#define _nc_nonsp_lock_global(name)	/* nothing */
720#define _nc_nonsp_try_global(name)    0
721#define _nc_nonsp_unlock_global(name)	/* nothing */
722
723#define _nc_sp_lock_global(name)	_nc_lock_global(name)
724#define _nc_sp_try_global(name)         _nc_try_global(name)
725#define _nc_sp_unlock_global(name)	_nc_unlock_global(name)
726
727#else
728
729#define _nc_nonsp_lock_global(name)	_nc_lock_global(name)
730#define _nc_nonsp_try_global(name)      _nc_try_global(name)
731#define _nc_nonsp_unlock_global(name)	_nc_unlock_global(name)
732
733#define _nc_sp_lock_global(name)	/* nothing */
734#define _nc_sp_try_global(name)    0
735#define _nc_sp_unlock_global(name)	/* nothing */
736
737#endif
738
739#if HAVE_CLOCK_GETTIME
740# define PRECISE_GETTIME 1
741# define GetClockTime(t) clock_gettime(CLOCK_REALTIME, t)
742# define TimeType struct timespec
743# define TimeScale 1000000000L		/* 1e9 */
744# define sub_secs tv_nsec
745#elif HAVE_GETTIMEOFDAY
746# define PRECISE_GETTIME 1
747# define GetClockTime(t) gettimeofday(t, 0)
748# define TimeType struct timeval
749# define TimeScale 1000000L		/* 1e6 */
750# define sub_secs tv_usec
751#else
752# define PRECISE_GETTIME 0
753# define TimeType time_t
754#endif
755
756/*
757 * Definitions for color pairs
758 */
759
760#define MAX_OF_TYPE(t)   (int)(((unsigned t)(~0))>>1)
761
762#include <new_pair.h>
763
764#define isDefaultColor(c)	((c) < 0)
765#define COLOR_DEFAULT		-1
766
767#if defined(USE_BUILD_CC) || (defined(USE_TERMLIB) && !defined(NEED_NCURSES_CH_T))
768
769#undef NCURSES_CH_T		/* this is not a termlib feature */
770#define NCURSES_CH_T void	/* ...but we need a pointer in SCREEN */
771
772#endif	/* USE_TERMLIB */
773
774#ifndef USE_TERMLIB
775struct ldat
776{
777	NCURSES_CH_T	*text;		/* text of the line */
778	NCURSES_SIZE_T	firstchar;	/* first changed character in the line */
779	NCURSES_SIZE_T	lastchar;	/* last changed character in the line */
780	NCURSES_SIZE_T	oldindex;	/* index of the line at last update */
781};
782#endif	/* USE_TERMLIB */
783
784typedef enum {
785	M_XTERM	= -1		/* use xterm's mouse tracking? */
786	,M_NONE = 0		/* no mouse device */
787#if USE_GPM_SUPPORT
788	,M_GPM			/* use GPM */
789#endif
790#if USE_SYSMOUSE
791	,M_SYSMOUSE		/* FreeBSD sysmouse on console */
792#endif
793#ifdef USE_TERM_DRIVER
794	,M_TERM_DRIVER		/* Win32 console, etc */
795#endif
796} MouseType;
797
798typedef enum {
799    	MF_X10 = 0		/* conventional 3-byte format */
800	, MF_SGR1006		/* xterm private mode 1006, SGR-style */
801#ifdef EXP_XTERM_1005
802	, MF_XTERM_1005		/* xterm UTF-8 private mode 1005 */
803#endif
804} MouseFormat;
805
806/*
807 * Structures for scrolling.
808 */
809
810typedef struct {
811	unsigned long hashval;
812	int oldcount, newcount;
813	int oldindex, newindex;
814} HASHMAP;
815
816/*
817 * Structures for soft labels.
818 */
819
820struct _SLK;
821
822#if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
823
824typedef struct
825{
826	char *ent_text;		/* text for the label */
827	char *form_text;	/* formatted text (left/center/...) */
828	int ent_x;		/* x coordinate of this field */
829	char dirty;		/* this label has changed */
830	char visible;		/* field is visible */
831} slk_ent;
832
833typedef struct _SLK {
834	bool    dirty;		/* all labels have changed */
835	bool    hidden;		/* soft labels are hidden */
836	WINDOW  *win;
837	slk_ent *ent;
838	short   maxlab;		/* number of available labels */
839	short   labcnt;		/* number of allocated labels */
840	short   maxlen;		/* length of labels */
841	NCURSES_CH_T attr;	/* soft label attribute */
842} SLK;
843
844#endif	/* USE_TERMLIB */
845
846#if USE_GPM_SUPPORT
847#undef buttons			/* term.h defines this, and gpm uses it! */
848#include <gpm.h>
849#if USE_WEAK_SYMBOLS
850weak_symbol(Gpm_Wgetch);
851#endif
852
853#ifdef HAVE_LIBDL
854/* link dynamically to GPM */
855typedef int *TYPE_gpm_fd;
856typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int);
857typedef int (*TYPE_Gpm_Close) (void);
858typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *);
859
860#define my_gpm_fd       SP_PARM->_mouse_gpm_fd
861#define my_Gpm_Open     SP_PARM->_mouse_Gpm_Open
862#define my_Gpm_Close    SP_PARM->_mouse_Gpm_Close
863#define my_Gpm_GetEvent SP_PARM->_mouse_Gpm_GetEvent
864#else
865/* link statically to GPM */
866#define my_gpm_fd       &gpm_fd
867#define my_Gpm_Open     Gpm_Open
868#define my_Gpm_Close    Gpm_Close
869#define my_Gpm_GetEvent Gpm_GetEvent
870#endif /* HAVE_LIBDL */
871#endif /* USE_GPM_SUPPORT */
872
873/*
874 * Limit delay-times to 30 seconds, which is consistent with signed 16-bit
875 * numbers in legacy terminfo.
876 */
877#define MAX_DELAY_MSECS 30000
878
879/*
880 * When converting from terminfo to termcap, check for cases where we can trim
881 * octal escapes down to 2-character form.  It is useful for terminfo format
882 * also, but not as important.
883 */
884#define MAX_TC_FIXUPS	10
885#define MIN_TC_FIXUPS	4
886
887#define isoctal(c) ((c) >= '0' && (c) <= '7')
888
889/*
890 * The filesystem database normally uses a single-letter for the lower level
891 * of directories.  Use a hexadecimal code for filesystems which do not
892 * preserve mixed-case names.
893 */
894#if MIXEDCASE_FILENAMES
895#define LEAF_FMT "%c"
896#define LEAF_LEN 1
897#else
898#define LEAF_FMT "%02x"
899#define LEAF_LEN 2
900#endif
901
902/*
903 * TRACEMSE_FMT is no longer than 80 columns, there are 5 numbers that
904 * could at most have 10 digits, and the mask contains no more than 32 bits
905 * with each bit representing less than 15 characters.  Usually the whole
906 * string is less than 80 columns, but this buffer size is an absolute
907 * limit.
908 */
909#define TRACECHR_BUF	40
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    ewUnknown = 0,
946    ewInitial,
947    ewRunning,
948    ewSuspend
949} ENDWIN;
950
951typedef struct {
952	int		_nl;		/* True if NL -> CR/NL is on	    */
953	int		_raw;		/* True if in raw mode		    */
954	int		_cbreak;	/* 1 if in cbreak mode		    */
955					/* > 1 if in halfdelay mode	    */
956	int		_echo;		/* True if echo on		    */
957} TTY_FLAGS;
958
959#define IsNl(sp)        (sp)->_tty_flags._nl
960#define IsRaw(sp)       (sp)->_tty_flags._raw
961#define IsCbreak(sp)    (sp)->_tty_flags._cbreak
962#define IsEcho(sp)      (sp)->_tty_flags._echo
963
964/*
965 * The SCREEN structure.
966 */
967typedef struct screen {
968	int		_ifd;		/* input file descriptor for screen */
969	int		_ofd;		/* output file descriptor for screen */
970	FILE		*_ofp;		/* output file ptr for screen	    */
971	char		*out_buffer;	/* output buffer		    */
972	size_t		out_limit;	/* output buffer size		    */
973	size_t		out_inuse;	/* output buffer current use	    */
974	bool		_filtered;	/* filter() was called		    */
975	bool		_prescreen;	/* is in prescreen phase	    */
976	bool		_use_env;	/* LINES & COLS from environment?   */
977	int		_checkfd;	/* filedesc for typeahead check	    */
978	TERMINAL	*_term;		/* terminal type information	    */
979	TTY		_saved_tty;	/* savetty/resetty information	    */
980	NCURSES_SIZE_T	_lines;		/* screen lines			    */
981	NCURSES_SIZE_T	_columns;	/* screen columns		    */
982
983	NCURSES_SIZE_T	_lines_avail;	/* lines available for stdscr	    */
984	NCURSES_SIZE_T	_topstolen;	/* lines stolen from top	    */
985
986	WINDOW		*_curscr;	/* current screen		    */
987	WINDOW		*_newscr;	/* virtual screen to be updated to  */
988	WINDOW		*_stdscr;	/* screen's full-window context	    */
989
990#define CurScreen(sp)  (sp)->_curscr
991#define NewScreen(sp)  (sp)->_newscr
992#define StdScreen(sp)  (sp)->_stdscr
993
994	TRIES		*_keytry;	/* "Try" for use with keypad mode   */
995	TRIES		*_key_ok;	/* Disabled keys via keyok(,FALSE)  */
996	bool		_tried;		/* keypad mode was initialized	    */
997	bool		_keypad_on;	/* keypad mode is currently on	    */
998
999	bool		_called_wgetch;	/* check for recursion in wgetch()  */
1000	int		_fifo[FIFO_SIZE];	/* input push-back buffer   */
1001	short		_fifohead,	/* head of fifo queue		    */
1002			_fifotail,	/* tail of fifo queue		    */
1003			_fifopeek,	/* where to peek for next char	    */
1004			_fifohold;	/* set if breakout marked	    */
1005
1006	int		_endwin;	/* are we out of window mode?	    */
1007	NCURSES_CH_T	*_current_attr; /* holds current attributes set	    */
1008	int		_coloron;	/* is color enabled?		    */
1009	int		_color_defs;	/* are colors modified		    */
1010	int		_cursor;	/* visibility of the cursor	    */
1011	int		_cursrow;	/* physical cursor row		    */
1012	int		_curscol;	/* physical cursor column	    */
1013	bool		_notty;		/* true if we cannot switch non-tty */
1014	TTY_FLAGS	_tty_flags;
1015	int		_use_meta;	/* use the meta key?		    */
1016	struct _SLK	*_slk;		/* ptr to soft key struct / NULL    */
1017	int		slk_format;	/* selected format for this screen  */
1018	/* cursor movement costs; units are 10ths of milliseconds */
1019	int		_char_padding;	/* cost of character put	    */
1020	int		_cr_cost;	/* cost of (carriage_return)	    */
1021	int		_cup_cost;	/* cost of (cursor_address)	    */
1022	int		_home_cost;	/* cost of (cursor_home)	    */
1023	int		_ll_cost;	/* cost of (cursor_to_ll)	    */
1024	int		_cub1_cost;	/* cost of (cursor_left)	    */
1025	int		_cuf1_cost;	/* cost of (cursor_right)	    */
1026	int		_cud1_cost;	/* cost of (cursor_down)	    */
1027	int		_cuu1_cost;	/* cost of (cursor_up)		    */
1028	int		_cub_cost;	/* cost of (parm_cursor_left)	    */
1029	int		_cuf_cost;	/* cost of (parm_cursor_right)	    */
1030	int		_cud_cost;	/* cost of (parm_cursor_down)	    */
1031	int		_cuu_cost;	/* cost of (parm_cursor_up)	    */
1032	int		_hpa_cost;	/* cost of (column_address)	    */
1033	int		_vpa_cost;	/* cost of (row_address)	    */
1034	/* used in tty_update.c, must be chars */
1035	int		_ed_cost;	/* cost of (clr_eos)		    */
1036	int		_el_cost;	/* cost of (clr_eol)		    */
1037	int		_el1_cost;	/* cost of (clr_bol)		    */
1038	int		_dch1_cost;	/* cost of (delete_character)	    */
1039	int		_ich1_cost;	/* cost of (insert_character)	    */
1040	int		_dch_cost;	/* cost of (parm_dch)		    */
1041	int		_ich_cost;	/* cost of (parm_ich)		    */
1042	int		_ech_cost;	/* cost of (erase_chars)	    */
1043	int		_rep_cost;	/* cost of (repeat_char)	    */
1044	int		_hpa_ch_cost;	/* cost of (column_address)	    */
1045	int		_cup_ch_cost;	/* cost of (cursor_address)	    */
1046	int		_cuf_ch_cost;	/* cost of (parm_cursor_right)	    */
1047	int		_inline_cost;	/* cost of inline-move		    */
1048	int		_smir_cost;	/* cost of (enter_insert_mode)	    */
1049	int		_rmir_cost;	/* cost of (exit_insert_mode)	    */
1050	int		_ip_cost;	/* cost of (insert_padding)	    */
1051	/* used in lib_mvcur.c */
1052	char *		_address_cursor;
1053	/* used in tty_update.c */
1054	int		_scrolling;	/* 1 if terminal's smart enough to  */
1055
1056	/* used in lib_color.c */
1057	rgb_bits_t	_direct_color;	/* RGB overrides color-table	     */
1058	color_t		*_color_table;	/* screen's color palette	     */
1059	int		_color_count;	/* count of colors in palette	     */
1060	colorpair_t	*_color_pairs;	/* screen's color pair list	     */
1061	int		_pair_count;	/* same as COLOR_PAIRS               */
1062	int		_pair_limit;	/* actual limit of color-pairs       */
1063	int		_pair_alloc;	/* current table-size of color-pairs */
1064	chtype		_ok_attributes; /* valid attributes for terminal     */
1065	chtype		_xmc_suppress;	/* attributes to suppress if xmc     */
1066	chtype		_xmc_triggers;	/* attributes to process if xmc	     */
1067	chtype *	_acs_map;	/* the real alternate-charset map    */
1068	bool *		_screen_acs_map;
1069
1070
1071	/* used in lib_vidattr.c */
1072	bool		_use_rmso;	/* true if we may use 'rmso'	     */
1073	bool		_use_rmul;	/* true if we may use 'rmul'	     */
1074
1075	/*
1076	 * These data correspond to the state of the idcok() and idlok()
1077	 * functions.  A caveat is in order here:  the XSI and SVr4
1078	 * documentation specify that these functions apply to the window which
1079	 * is given as an argument.  However, ncurses implements this logic
1080	 * only for the newscr/curscr update process, _not_ per-window.
1081	 */
1082	bool		_nc_sp_idlok;
1083	bool		_nc_sp_idcok;
1084
1085	/*
1086	 * These are the data that support the mouse interface.
1087	 */
1088	bool		_mouse_initialized;
1089	MouseType	_mouse_type;
1090	int		_maxclick;
1091	bool		(*_mouse_event) (SCREEN *);
1092	bool		(*_mouse_inline)(SCREEN *);
1093	bool		(*_mouse_parse) (SCREEN *, int);
1094	void		(*_mouse_resume)(SCREEN *);
1095	void		(*_mouse_wrap)	(SCREEN *);
1096	int		_mouse_fd;	/* file-descriptor, if any */
1097	bool		_mouse_active;	/* true if initialized */
1098	mmask_t		_mouse_mask;	/* set via mousemask() */
1099	mmask_t		_mouse_mask2;	/* OR's in press/release bits */
1100	mmask_t		_mouse_bstate;
1101	MouseFormat	_mouse_format;	/* type of xterm mouse protocol */
1102	NCURSES_CONST char *_mouse_xtermcap; /* string to enable/disable mouse */
1103	MEVENT		_mouse_events[EV_MAX];	/* hold the last mouse event seen */
1104	MEVENT		*_mouse_eventp;	/* next free slot in event queue */
1105
1106	/*
1107	 * These are data that support the proper handling of the panel stack on an
1108	 * per screen basis.
1109	 */
1110	struct panelhook _panelHook;
1111
1112	bool		_sig_winch;
1113	SCREEN		*_next_screen;
1114
1115	/* hashes for old and new lines */
1116	unsigned long	*oldhash, *newhash;
1117	HASHMAP		*hashtab;
1118	int		hashtab_len;
1119	int		*_oldnum_list;
1120	int		_oldnum_size;
1121
1122	NCURSES_SP_OUTC	_outch;		/* output handler if not putc */
1123	NCURSES_OUTC	jump;
1124
1125	ripoff_t	rippedoff[N_RIPS];
1126	ripoff_t	*rsp;
1127
1128	int		_legacy_coding;	/* see use_legacy_coding() */
1129
1130#if NCURSES_NO_PADDING
1131	bool		_no_padding;	/* flag to set if padding disabled  */
1132#endif
1133
1134#if USE_HARD_TABS
1135	int		_ht_cost;	/* cost of (tab)		    */
1136	int		_cbt_cost;	/* cost of (backtab)		    */
1137#endif /* USE_HARD_TABS */
1138
1139	/* used in lib_vidattr.c */
1140#if USE_ITALIC
1141	bool		_use_ritm;	/* true if we may use 'ritm'	     */
1142#endif
1143
1144	/* used in getch/twait */
1145#if USE_KLIBC_KBD
1146	bool		_extended_key;	/* true if an extended key	     */
1147#endif
1148
1149	/* used in lib_color.c */
1150#if NCURSES_EXT_FUNCS
1151	bool		_assumed_color; /* use assumed colors		     */
1152	bool		_default_color; /* use default colors		     */
1153	bool		_has_sgr_39_49; /* has ECMA default color support    */
1154	int		_default_fg;	/* assumed default foreground	     */
1155	int		_default_bg;	/* assumed default background	     */
1156	int		_default_pairs;	/* count pairs using default color   */
1157#endif
1158
1159	/* system-dependent mouse data */
1160#if USE_GPM_SUPPORT
1161	bool		_mouse_gpm_loaded;
1162	bool		_mouse_gpm_found;
1163#ifdef HAVE_LIBDL
1164	void		*_dlopen_gpm;
1165	TYPE_gpm_fd	_mouse_gpm_fd;
1166	TYPE_Gpm_Open	_mouse_Gpm_Open;
1167	TYPE_Gpm_Close	_mouse_Gpm_Close;
1168	TYPE_Gpm_GetEvent _mouse_Gpm_GetEvent;
1169#endif
1170	Gpm_Connect	_mouse_gpm_connect;
1171#endif /* USE_GPM_SUPPORT */
1172
1173#if USE_EMX_MOUSE
1174	int		_emxmouse_wfd;
1175	int		_emxmouse_thread;
1176	int		_emxmouse_activated;
1177	char		_emxmouse_buttons[4];
1178#endif
1179
1180#if USE_SYSMOUSE
1181	MEVENT		_sysmouse_fifo[FIFO_SIZE];
1182	int		_sysmouse_head;
1183	int		_sysmouse_tail;
1184	int		_sysmouse_char_width;	/* character width */
1185	int		_sysmouse_char_height;	/* character height */
1186	int		_sysmouse_old_buttons;
1187	int		_sysmouse_new_buttons;
1188#endif
1189
1190#if defined(USE_TERM_DRIVER) || defined(EXP_WIN32_DRIVER)
1191	MEVENT		_drv_mouse_fifo[FIFO_SIZE];
1192	int		_drv_mouse_head;
1193	int		_drv_mouse_tail;
1194	int		_drv_mouse_old_buttons;
1195	int		_drv_mouse_new_buttons;
1196#endif
1197	/*
1198	 * This supports automatic resizing
1199	 */
1200#if USE_SIZECHANGE
1201	int		(*_resize)(NCURSES_SP_DCLx int y, int x);
1202	int		(*_ungetch)(SCREEN *, int);
1203#endif
1204
1205#ifdef USE_SP_WINDOWLIST
1206	WINDOWLIST*	_windowlist;
1207#define WindowList(sp)  (sp)->_windowlist
1208#endif
1209
1210#if USE_REENTRANT
1211	char		_ttytype[NAMESIZE];
1212	int		_ESCDELAY;
1213	int		_TABSIZE;
1214	int		_LINES;
1215	int		_COLS;
1216#endif
1217
1218#if NCURSES_SP_FUNCS
1219	bool		use_tioctl;
1220#endif
1221
1222	/*
1223	 * ncurses/ncursesw are the same up to this point.
1224	 */
1225#if USE_WIDEC_SUPPORT
1226	/* recent versions of 'screen' have partially-working support for
1227	 * UTF-8, but do not permit ACS at the same time (see tty_update.c).
1228	 */
1229	bool		_screen_acs_fix;
1230	bool		_screen_unicode;
1231#endif
1232
1233#if NCURSES_EXT_FUNCS && NCURSES_EXT_COLORS
1234	void		*_ordered_pairs; /* index used by alloc_pair()	     */
1235	int		_pairs_used;	/* actual number of color-pairs used */
1236	int		_recent_pair;	/* number for most recent free-pair  */
1237#endif
1238
1239#ifdef TRACE
1240	char		tracechr_buf[TRACECHR_BUF];
1241	char		tracemse_buf[TRACEMSE_MAX];
1242#if USE_REENTRANT
1243	long		_outchars;
1244	const char	*_tputs_trace;
1245#endif
1246#endif
1247#undef SCREEN
1248} SCREEN;
1249
1250extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain;
1251extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
1252
1253	WINDOWLIST {
1254	WINDOWLIST *next;
1255	SCREEN *screen;		/* screen containing the window */
1256	WINDOW	win;		/* WINDOW_EXT() needs to account for offset */
1257#if NCURSES_WIDECHAR
1258	char addch_work[(MB_LEN_MAX * 9) + 1];
1259	unsigned addch_used;	/* number of bytes in addch_work[] */
1260	int addch_x;		/* x-position for addch_work[] */
1261	int addch_y;		/* y-position for addch_work[] */
1262#endif
1263};
1264
1265#define WINDOW_EXT(w,m) (((WINDOWLIST *)((void *)((char *)(w) - offsetof(WINDOWLIST, win))))->m)
1266
1267#ifdef USE_SP_WINDOWLIST
1268#define SP_INIT_WINDOWLIST(sp)	WindowList(sp) = 0
1269#else
1270#define SP_INIT_WINDOWLIST(sp)	/* nothing */
1271#endif
1272
1273#define SP_PRE_INIT(sp)                         \
1274    sp->_cursrow           = -1;                \
1275    sp->_curscol           = -1;                \
1276    IsNl(sp)               = TRUE;              \
1277    IsRaw(sp)              = FALSE;             \
1278    IsCbreak(sp)           = 0;                 \
1279    IsEcho(sp)             = TRUE;              \
1280    sp->_fifohead          = -1;                \
1281    sp->_endwin            = ewSuspend;         \
1282    sp->_cursor            = -1;                \
1283    SP_INIT_WINDOWLIST(sp);                     \
1284    sp->_outch             = NCURSES_OUTC_FUNC; \
1285    sp->jump               = 0                  \
1286
1287/* usually in <limits.h> */
1288#ifndef UCHAR_MAX
1289#define UCHAR_MAX 255
1290#endif
1291
1292/* The terminfo source is assumed to be 7-bit ASCII */
1293#define is7bits(c)	((unsigned)(c) < 128)
1294
1295/* Checks for isprint() should be done on 8-bit characters (non-wide) */
1296#define is8bits(c)	((unsigned)(c) <= UCHAR_MAX)
1297
1298#ifndef Min
1299#define Min(a,b)	((a) > (b)  ?  (b)  :  (a))
1300#endif
1301
1302#ifndef Max
1303#define Max(a,b)	((a) < (b)  ?  (b)  :  (a))
1304#endif
1305
1306/* usually in <unistd.h> */
1307#ifndef STDIN_FILENO
1308#define STDIN_FILENO 0
1309#endif
1310
1311#ifndef STDOUT_FILENO
1312#define STDOUT_FILENO 1
1313#endif
1314
1315#ifndef STDERR_FILENO
1316#define STDERR_FILENO 2
1317#endif
1318
1319#ifndef EXIT_SUCCESS
1320#define EXIT_SUCCESS 0
1321#endif
1322
1323#ifndef EXIT_FAILURE
1324#define EXIT_FAILURE 1
1325#endif
1326
1327#ifndef R_OK
1328#define	R_OK	4		/* Test for read permission.  */
1329#endif
1330#ifndef W_OK
1331#define	W_OK	2		/* Test for write permission.  */
1332#endif
1333#ifndef X_OK
1334#define	X_OK	1		/* Test for execute permission.  */
1335#endif
1336#ifndef F_OK
1337#define	F_OK	0		/* Test for existence.  */
1338#endif
1339
1340#if HAVE_FCNTL_H
1341#include <fcntl.h>		/* may define O_BINARY	*/
1342#endif
1343
1344#ifndef O_BINARY
1345#define O_BINARY 0
1346#endif
1347
1348#ifdef TRACE
1349#if USE_REENTRANT
1350#define COUNT_OUTCHARS(n) _nc_count_outchars(n);
1351#else
1352#define COUNT_OUTCHARS(n) _nc_outchars += (n);
1353#endif
1354#else
1355#define COUNT_OUTCHARS(n) /* nothing */
1356#endif
1357
1358#define RESET_OUTCHARS() COUNT_OUTCHARS(-_nc_outchars)
1359
1360#define UChar(c)	((unsigned char)(c))
1361#define UShort(c)	((unsigned short)(c))
1362#define ChCharOf(c)	((chtype)(c) & (chtype)A_CHARTEXT)
1363#define ChAttrOf(c)	((chtype)(c) & (chtype)A_ATTRIBUTES)
1364
1365#define TR_PUTC(c)	TR(TRACE_CHARPUT, ("PUTC %#x", UChar(c)))
1366
1367#if USE_WIDEC_SUPPORT /* { */
1368/* true if the status/errno indicate an illegal multibyte sequence */
1369#define isEILSEQ(status) (((size_t)status == (size_t)-1) && (errno == EILSEQ))
1370
1371#define init_mb(state)	memset(&(state), 0, sizeof(state))
1372
1373#if NCURSES_EXT_COLORS
1374#define NulColor	, 0
1375#else
1376#define NulColor	/* nothing */
1377#endif
1378
1379#if CCHARW_MAX > 6
1380#define NulChar		0,0,0,0,0
1381#elif CCHARW_MAX > 5
1382#define NulChar		0,0,0,0		/* ncurses7 */
1383#elif CCHARW_MAX > 4
1384#define NulChar		0,0,0		/* ncurses6 */
1385#elif CCHARW_MAX > 3
1386#define NulChar		0,0
1387#elif CCHARW_MAX > 2
1388#define NulChar		0
1389#else
1390#define NulChar		/* nothing */
1391#endif
1392
1393#define CharOf(c)	((c).chars[0])
1394#define AttrOf(c)	((c).attr)
1395
1396#define AddAttr(c,a)	AttrOf(c) |=  ((a) & A_ATTRIBUTES)
1397#define RemAttr(c,a)	AttrOf(c) &= ~((a) & A_ATTRIBUTES)
1398#define SetAttr(c,a)	AttrOf(c) =   ((a) & A_ATTRIBUTES) | WidecExt(c)
1399
1400#define NewChar2(c,a)	{ a, { c, NulChar } NulColor }
1401#define NewChar(ch)	NewChar2(ChCharOf(ch), ChAttrOf(ch))
1402
1403#if CCHARW_MAX > 1
1404#define CharEq(a,b)	(((a).attr == (b).attr) \
1405			 && !memcmp((a).chars, \
1406				    (b).chars, \
1407				    CCHARW_MAX * sizeof((b).chars[0])) \
1408			if_EXT_COLORS(&& (a).ext_color == (b).ext_color))
1409#else
1410#define CharEq(a,b)	(!memcmp(&(a), &(b), sizeof(a)))
1411#endif
1412
1413#define SetChar(ch,c,a) do {							    \
1414			    NCURSES_CH_T *_cp = &(ch);				    \
1415			    memset(_cp, 0, sizeof(ch));				    \
1416			    _cp->chars[0] = (wchar_t) (c);			    \
1417			    _cp->attr = (a);					    \
1418			    if_EXT_COLORS(SetPair(ch, PairNumber(a)));		    \
1419			} while (0)
1420#define CHREF(wch)	(&(wch))
1421#define CHDEREF(wch)	(*(wch))
1422#define ARG_CH_T	NCURSES_CH_T *
1423#define CARG_CH_T	const NCURSES_CH_T *
1424#define PUTC_DATA	char PUTC_buf[MB_LEN_MAX]; int PUTC_i, PUTC_n; \
1425			mbstate_t PUT_st; wchar_t PUTC_ch
1426#define PUTC_INIT	init_mb (PUT_st)
1427#define PUTC(ch)	do { if(!isWidecExt(ch)) {				    \
1428			if (Charable(ch)) {					    \
1429			    TR_PUTC(CharOf(ch));				    \
1430			    NCURSES_OUTC_FUNC (NCURSES_SP_ARGx CharOf(ch));	    \
1431			    COUNT_OUTCHARS(1);					    \
1432			} else {						    \
1433			    for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {	    \
1434				PUTC_ch = (ch).chars[PUTC_i];			    \
1435				if (PUTC_ch == L'\0')				    \
1436				    break;					    \
1437				PUTC_INIT;					    \
1438				PUTC_n = (int) wcrtomb(PUTC_buf,		    \
1439						       (ch).chars[PUTC_i], &PUT_st); \
1440				if (PUTC_n <= 0) {				    \
1441				    if (PUTC_ch && is8bits(PUTC_ch) && PUTC_i == 0) { \
1442					TR_PUTC(CharOf(ch));			    \
1443					NCURSES_OUTC_FUNC (NCURSES_SP_ARGx CharOf(ch)); \
1444				    }						    \
1445				    break;					    \
1446				} else {					    \
1447				    int PUTC_j;					    \
1448				    for (PUTC_j = 0; PUTC_j < PUTC_n; ++PUTC_j) {   \
1449					TR_PUTC(PUTC_buf[PUTC_j]);		    \
1450					NCURSES_OUTC_FUNC (NCURSES_SP_ARGx PUTC_buf[PUTC_j]); \
1451				    }						    \
1452				}						    \
1453			    }							    \
1454			    COUNT_OUTCHARS(PUTC_i);				    \
1455			} } } while (0)
1456
1457#define BLANK		NewChar2(' ', WA_NORMAL)
1458#define ZEROS		NewChar2('\0', WA_NORMAL)
1459#define ISBLANK(ch)	((ch).chars[0] == L' ' && (ch).chars[1] == L'\0')
1460
1461	/*
1462	 * Wide characters cannot be represented in the A_CHARTEXT mask of
1463	 * attr_t's but an application might have set a narrow character there.
1464	 * But even in that case, it would only be a printable character, or
1465	 * zero.  Otherwise we can use those bits to tell if a cell is the
1466	 * first or extension part of a wide character.
1467	 */
1468#define WidecExt(ch)	(int) (AttrOf(ch) & A_CHARTEXT)
1469#define isWidecBase(ch)	(WidecExt(ch) == 1)
1470#define isWidecExt(ch)	(WidecExt(ch) > 1 && WidecExt(ch) < 32)
1471#define SetWidecExt(dst, ext)	AttrOf(dst) &= ~A_CHARTEXT,		\
1472				AttrOf(dst) |= (attr_t) (ext + 1)
1473
1474#define if_WIDEC(code)  code
1475#define Charable(ch)	(((SP_PARM->_legacy_coding)			\
1476			 || (AttrOf(ch) & A_ALTCHARSET)			\
1477			 || (!isWidecExt(ch))) &&			\
1478			     (ch).chars[1] == L'\0' &&			\
1479			     _nc_is_charable(CharOf(ch)))
1480
1481#define L(ch)		L ## ch
1482#else /* }{ */
1483#define CharOf(c)	ChCharOf(c)
1484#define AttrOf(c)	ChAttrOf(c)
1485#define AddAttr(c,a)	c |= (a)
1486#define RemAttr(c,a)	c &= ~((a) & A_ATTRIBUTES)
1487#define SetAttr(c,a)	c = ((c) & ~A_ATTRIBUTES) | (a)
1488#define NewChar(ch)	(ch)
1489#define NewChar2(c,a)	((c) | (a))
1490#define CharEq(a,b)	((a) == (b))
1491#define SetChar(ch,c,a)	ch = (c) | (a)
1492#define CHREF(wch)	wch
1493#define CHDEREF(wch)	wch
1494#define ARG_CH_T	NCURSES_CH_T
1495#define CARG_CH_T	NCURSES_CH_T
1496#define PUTC_DATA	/* nothing */
1497#define PUTC(ch)	{ \
1498			    TR_PUTC(ch); \
1499			    NCURSES_OUTC_FUNC (NCURSES_SP_ARGx (int) ch); \
1500			}
1501
1502#define BLANK		(' '|A_NORMAL)
1503#define ZEROS		('\0'|A_NORMAL)
1504#define ISBLANK(ch)	(CharOf(ch) == ' ')
1505
1506#define isWidecExt(ch)	(0)
1507#define if_WIDEC(code) /* nothing */
1508
1509#define Charable(ch)	(CharOf(ch) >= ' ' && CharOf(ch) <= '~')
1510#define L(ch)		ch
1511#endif /* } */
1512
1513#define AttrOfD(ch)	AttrOf(CHDEREF(ch))
1514#define CharOfD(ch)	CharOf(CHDEREF(ch))
1515#define SetChar2(wch,ch)    SetChar(wch,ChCharOf(ch),ChAttrOf(ch))
1516
1517#define BLANK_ATTR	A_NORMAL
1518#define BLANK_TEXT	L(' ')
1519
1520#define CHANGED     -1
1521
1522#define LEGALYX(w, y, x) \
1523	      ((w) != 0 && \
1524		((x) >= 0 && (x) <= (w)->_maxx && \
1525		 (y) >= 0 && (y) <= (w)->_maxy))
1526
1527#define CHANGED_CELL(line,col) \
1528	if (line->firstchar == _NOCHANGE) \
1529		line->firstchar = line->lastchar = (NCURSES_SIZE_T) (col); \
1530	else if ((col) < line->firstchar) \
1531		line->firstchar = (NCURSES_SIZE_T) (col); \
1532	else if ((col) > line->lastchar) \
1533		line->lastchar = (NCURSES_SIZE_T) (col)
1534
1535#define CHANGED_RANGE(line,start,end) \
1536	if (line->firstchar == _NOCHANGE \
1537	 || line->firstchar > (start)) \
1538		line->firstchar = (NCURSES_SIZE_T) (start); \
1539	if (line->lastchar == _NOCHANGE \
1540	 || line->lastchar < (end)) \
1541		line->lastchar = (NCURSES_SIZE_T) (end)
1542
1543#define CHANGED_TO_EOL(line,start,end) \
1544	if (line->firstchar == _NOCHANGE \
1545	 || line->firstchar > (start)) \
1546		line->firstchar = (NCURSES_SIZE_T) (start); \
1547	line->lastchar = (NCURSES_SIZE_T) (end)
1548
1549#define SIZEOF(v) (sizeof(v)/sizeof(v[0]))
1550
1551#include <nc_alloc.h>
1552#include <nc_access.h>
1553
1554#define FreeIfNeeded(p)  if ((p) != 0) free(p)
1555
1556/* FreeAndNull() is not a comma-separated expression because some compilers
1557 * do not accept a mixture of void with values.
1558 */
1559#define FreeAndNull(p)   do { free(p); p = 0; } while (0)
1560
1561#ifdef EXP_OOM_TESTING
1562extern NCURSES_EXPORT(void *)	_nc_oom_malloc(size_t size);
1563extern NCURSES_EXPORT(void *)	_nc_oom_calloc(size_t nmemb, size_t size);
1564extern NCURSES_EXPORT(void *)	_nc_oom_realloc(void *ptr, size_t size);
1565extern NCURSES_EXPORT(void)	_nc_oom_free(void *ptr);
1566extern NCURSES_EXPORT(char *)	_nc_oom_strdup(const char *ptr);
1567#define malloc(size)		_nc_oom_malloc(size)
1568#define calloc(nmemb, size)	_nc_oom_calloc(nmemb, size)
1569#define realloc(ptr, size)	_nc_oom_realloc(ptr, size)
1570#define free(ptr)		_nc_oom_free(ptr)
1571#define strdup(ptr)		_nc_oom_strdup(ptr)
1572#endif
1573
1574/*
1575 * Use these for tic/infocmp malloc failures.  Generally the ncurses library
1576 * tries to limp along after a failure.
1577 */
1578#define TYPE_MALLOC(type, size, name) \
1579	do { \
1580	    name = typeMalloc(type, size); \
1581	    if (name == 0) \
1582		_nc_err_abort(MSG_NO_MEMORY); \
1583	} while (0)
1584
1585#define TYPE_CALLOC(type, size, name) \
1586	do { \
1587	    name = typeCalloc(type, size); \
1588	    if (name == 0) \
1589		_nc_err_abort(MSG_NO_MEMORY); \
1590	} while (0)
1591
1592#define TYPE_REALLOC(type, size, name) \
1593	do { \
1594	    name = typeRealloc(type, size, name); \
1595	    if (name == 0) \
1596		_nc_err_abort(MSG_NO_MEMORY); \
1597	} while (0)
1598
1599/*
1600 * TTY bit definition for converting tabs to spaces.
1601 */
1602#ifdef TAB3
1603# define OFLAGS_TABS TAB3	/* POSIX specifies TAB3 */
1604#else
1605# ifdef XTABS
1606#  define OFLAGS_TABS XTABS	/* XTABS is usually the "same" */
1607# else
1608#  ifdef OXTABS
1609#   define OFLAGS_TABS OXTABS	/* the traditional BSD equivalent */
1610#  else
1611#   define OFLAGS_TABS 0
1612#  endif
1613# endif
1614#endif
1615
1616#ifdef __TANDEM
1617#define ROOT_UID 65535
1618#endif
1619
1620#ifndef ROOT_UID
1621#define ROOT_UID 0
1622#endif
1623
1624/*
1625 * Standardize/simplify common loops
1626 */
1627#define each_screen(p) p = _nc_screen_chain; p != 0; p = (p)->_next_screen
1628#define each_window(sp,p) p = WindowList(sp); p != 0; p = (p)->next
1629#define each_ripoff(p) p = safe_ripoff_stack; (p - safe_ripoff_stack) < N_RIPS; ++p
1630
1631/*
1632 * Prefixes for call/return points of library function traces.  We use these to
1633 * instrument the public functions so that the traces can be easily transformed
1634 * into regression scripts.
1635 */
1636#define T_CALLED(fmt) "called {" fmt
1637#define T_CREATE(fmt) "create :" fmt
1638#define T_RETURN(fmt) "return }" fmt
1639
1640#define NonNull(s)              ((s) != 0 ? s : "<null>")
1641#define NonEmpty(s)             ((s) != 0 && *(s) != '\0')
1642
1643#ifdef TRACE
1644
1645#if USE_REENTRANT
1646#define TPUTS_TRACE(s)	_nc_set_tputs_trace(s);
1647#else
1648#define TPUTS_TRACE(s)	_nc_tputs_trace = s;
1649#endif
1650
1651#ifdef HAVE_CONSISTENT_GETENV
1652#define START_TRACE() \
1653	if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \
1654	    int t = _nc_getenv_num("NCURSES_TRACE"); \
1655	    if (t >= 0) \
1656		curses_trace((unsigned) t); \
1657	}
1658#else
1659#define START_TRACE() /* nothing */
1660#endif
1661
1662/*
1663 * Many of the _tracef() calls use static buffers; lock the trace state before
1664 * trying to fill them.
1665 */
1666#if USE_REENTRANT
1667#define USE_TRACEF(mask) _nc_use_tracef(mask)
1668extern NCURSES_EXPORT(int)	_nc_use_tracef (unsigned);
1669extern NCURSES_EXPORT(void)	_nc_locked_tracef (const char *, ...) GCC_PRINTFLIKE(1,2);
1670#else
1671#define USE_TRACEF(mask) (_nc_tracing & (mask))
1672#define _nc_locked_tracef _tracef
1673#endif
1674
1675#define TR(n, a)	if (USE_TRACEF(n)) _nc_locked_tracef a
1676#define T(a)		TR(TRACE_CALLS, a)
1677#define TRACE_RETURN(value,type)     return _nc_retrace_##type((type)(value))
1678#define TRACE_RETURN1(value,dst)     return _nc_retrace_##dst(value)
1679#define TRACE_RETURN2(value,dst,src) return _nc_retrace_##dst##_##src(value)
1680#define TRACE_RETURN_SP(value,type)  return _nc_retrace_##type(SP_PARM, value)
1681
1682typedef void VoidFunc(void);
1683
1684#define TR_FUNC_LEN		((sizeof(void *) + sizeof(void (*)(void))) * 2 + 4)
1685#define TR_FUNC_BFR(max)	char tr_func_data[max][TR_FUNC_LEN]
1686#define TR_FUNC_ARG(num,func)	_nc_fmt_funcptr(&tr_func_data[num][0], (const char *)&(func), sizeof((func)))
1687
1688#define returnAttr(code)	TRACE_RETURN(code,attr_t)
1689#define returnBits(code)	TRACE_RETURN(code,unsigned)
1690#define returnBool(code)	TRACE_RETURN(code,bool)
1691#define returnCPtr(code)	TRACE_RETURN1(code,cptr)
1692#define returnCVoidPtr(code)	TRACE_RETURN1(code,cvoid_ptr)
1693#define returnChar(code)	TRACE_RETURN(code,char)
1694#define returnChtype(code)	TRACE_RETURN(code,chtype)
1695#define returnCode(code)	TRACE_RETURN(code,int)
1696#define returnIntAttr(code)	TRACE_RETURN2(code,int,attr_t)
1697#define returnMMask(code)	TRACE_RETURN_SP(code,mmask_t)
1698#define returnPtr(code)		TRACE_RETURN1(code,ptr)
1699#define returnSP(code)		TRACE_RETURN1(code,sp)
1700#define returnVoid		{ T((T_RETURN(""))); return; }
1701#define returnVoidPtr(code)	TRACE_RETURN1(code,void_ptr)
1702#define returnWin(code)		TRACE_RETURN1(code,win)
1703
1704#define returnDB(rc)		do { TR(TRACE_DATABASE,(T_RETURN("code %d"), (rc))); return (rc); } while (0)
1705#define returnPtrDB(rc)		do { TR(TRACE_DATABASE,(T_RETURN("%p"), (rc))); return (rc); } while (0)
1706#define returnVoidDB		do { TR(TRACE_DATABASE,(T_RETURN(""))); return; } while (0)
1707
1708extern NCURSES_EXPORT(NCURSES_BOOL)     _nc_retrace_bool (int);
1709extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *);
1710extern NCURSES_EXPORT(SCREEN *)         _nc_retrace_sp (SCREEN *);
1711extern NCURSES_EXPORT(WINDOW *)         _nc_retrace_win (WINDOW *);
1712extern NCURSES_EXPORT(attr_t)           _nc_retrace_attr_t (attr_t);
1713extern NCURSES_EXPORT(char *)           _nc_retrace_ptr (char *);
1714extern NCURSES_EXPORT(char *)           _nc_trace_ttymode(const TTY *tty);
1715extern NCURSES_EXPORT(char *)           _nc_varargs (const char *, va_list);
1716extern NCURSES_EXPORT(chtype)           _nc_retrace_chtype (chtype);
1717extern NCURSES_EXPORT(const char *)     _nc_altcharset_name(attr_t, chtype);
1718extern NCURSES_EXPORT(const char *)     _nc_retrace_cptr (const char *);
1719extern NCURSES_EXPORT(char)             _nc_retrace_char (int);
1720extern NCURSES_EXPORT(int)              _nc_retrace_int (int);
1721extern NCURSES_EXPORT(int)              _nc_retrace_int_attr_t (attr_t);
1722extern NCURSES_EXPORT(mmask_t)          _nc_retrace_mmask_t (SCREEN *, mmask_t);
1723extern NCURSES_EXPORT(unsigned)         _nc_retrace_unsigned (unsigned);
1724extern NCURSES_EXPORT(void *)           _nc_retrace_void_ptr (void *);
1725extern NCURSES_EXPORT(void)             _nc_fifo_dump (SCREEN *);
1726
1727extern NCURSES_EXPORT(char *)           _nc_fmt_funcptr(char *, const char *, size_t);
1728
1729#if USE_REENTRANT
1730NCURSES_WRAPPED_VAR(long, _nc_outchars);
1731NCURSES_WRAPPED_VAR(const char *, _nc_tputs_trace);
1732#define _nc_outchars       NCURSES_PUBLIC_VAR(_nc_outchars())
1733#define _nc_tputs_trace    NCURSES_PUBLIC_VAR(_nc_tputs_trace())
1734extern NCURSES_EXPORT(void)		_nc_set_tputs_trace (const char *);
1735extern NCURSES_EXPORT(void)		_nc_count_outchars (long);
1736#else
1737extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace;
1738extern NCURSES_EXPORT_VAR(long)         _nc_outchars;
1739#endif
1740
1741extern NCURSES_EXPORT_VAR(unsigned)     _nc_tracing;
1742
1743extern NCURSES_EXPORT(char *) _nc_tracebits (void);
1744extern NCURSES_EXPORT(char *) _tracemouse (const MEVENT *);
1745extern NCURSES_EXPORT(void) _tracedump (const char *, WINDOW *);
1746
1747#if USE_WIDEC_SUPPORT
1748extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *);
1749extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int);
1750#endif
1751
1752extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int);
1753extern NCURSES_EXPORT(const char *) _nc_viscbuf (const NCURSES_CH_T *, int);
1754
1755#else /* !TRACE */
1756
1757#define START_TRACE() /* nothing */
1758
1759#define T(a)
1760#define TR(n, a)
1761#define TPUTS_TRACE(s)
1762#define TR_FUNC_BFR(max)
1763
1764#define returnAttr(code)	return code
1765#define returnBits(code)	return code
1766#define returnBool(code)	return code
1767#define returnCPtr(code)	return code
1768#define returnCVoidPtr(code)	return code
1769#define returnChar(code)	return ((char) code)
1770#define returnChtype(code)	return code
1771#define returnCode(code)	return code
1772#define returnIntAttr(code)	return code
1773#define returnMMask(code)	return code
1774#define returnPtr(code)		return code
1775#define returnSP(code)		return code
1776#define returnVoid		return
1777#define returnVoidPtr(code)	return code
1778#define returnWin(code)		return code
1779
1780#define returnDB(code)		return code
1781#define returnPtrDB(rc)		return rc
1782#define returnVoidDB		return
1783
1784#endif /* TRACE/!TRACE */
1785
1786/*
1787 * Workaround for defective implementation of gcc attribute warn_unused_result
1788 */
1789#if defined(__GNUC__) && defined(_FORTIFY_SOURCE)
1790#define IGNORE_RC(func) errno = (int) func
1791#else
1792#define IGNORE_RC(func) (void) func
1793#endif /* gcc workarounds */
1794
1795/*
1796 * Return-codes for tgetent() and friends.
1797 */
1798#define TGETENT_YES  1		/* entry is found */
1799#define TGETENT_NO   0		/* entry is not found */
1800#define TGETENT_ERR -1		/* an error occurred */
1801
1802extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *);
1803extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int);
1804
1805#define EMPTY_MODULE(name) \
1806extern	NCURSES_EXPORT(void) name (void); \
1807	NCURSES_EXPORT(void) name (void) { }
1808
1809#define ALL_BUT_COLOR ((chtype)~(A_COLOR))
1810#define NONBLANK_ATTR (A_BOLD | A_DIM | A_BLINK | A_ITALIC)
1811#define TPARM_ATTR    (A_STANDOUT | A_UNDERLINE | A_REVERSE | A_BLINK | A_DIM | A_BOLD | A_ALTCHARSET | A_INVIS | A_PROTECT)
1812#define XMC_CONFLICT  (A_STANDOUT | A_UNDERLINE | A_REVERSE | A_BLINK | A_DIM | A_BOLD | A_INVIS | A_PROTECT | A_ITALIC)
1813#define XMC_CHANGES(c) ((c) & SP_PARM->_xmc_suppress)
1814
1815#define toggle_attr_on(S,at) {\
1816   if (PairNumber(at) > 0) {\
1817      (S) = ((S) & ALL_BUT_COLOR) | (attr_t) (at);\
1818   } else {\
1819      (S) |= (attr_t) (at);\
1820   }\
1821   TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1822
1823
1824#define toggle_attr_off(S,at) {\
1825   if (PairNumber(at) > 0) {\
1826      (S) &= ~(at|A_COLOR);\
1827   } else {\
1828      (S) &= ~(at);\
1829   }\
1830   TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1831
1832#define DelCharCost(sp,count) \
1833		((parm_dch != 0) \
1834		? sp->_dch_cost \
1835		: ((delete_character != 0) \
1836			? (sp->_dch1_cost * count) \
1837			: INFINITY))
1838
1839#define InsCharCost(sp,count) \
1840		((parm_ich != 0) \
1841		? sp->_ich_cost \
1842		: ((enter_insert_mode && exit_insert_mode) \
1843		  ? sp->_smir_cost + sp->_rmir_cost + (sp->_ip_cost * count) \
1844		  : ((insert_character != 0) \
1845		    ? ((sp->_ich1_cost + sp->_ip_cost) * count) \
1846		    : INFINITY)))
1847
1848#if USE_XMC_SUPPORT
1849#define UpdateAttrs(sp,c) if (!SameAttrOf(SCREEN_ATTRS(sp), c)) { \
1850				attr_t chg = AttrOf(SCREEN_ATTRS(sp)); \
1851				VIDPUTS(sp, AttrOf(c), GetPair(c)); \
1852				if (magic_cookie_glitch > 0 \
1853				 && XMC_CHANGES((chg ^ AttrOf(SCREEN_ATTRS(sp))))) { \
1854					T(("%s @%d before glitch %d,%d", \
1855						__FILE__, __LINE__, \
1856						sp->_cursrow, \
1857						sp->_curscol)); \
1858					NCURSES_SP_NAME(_nc_do_xmc_glitch)(NCURSES_SP_ARGx chg); \
1859				} \
1860			}
1861#else
1862#define UpdateAttrs(sp,c) if (!SameAttrOf(SCREEN_ATTRS(sp), c)) { \
1863				    VIDPUTS(sp, AttrOf(c), GetPair(c)); \
1864			}
1865#endif
1866
1867/*
1868 * Macros to make additional parameter to implement wgetch_events()
1869 */
1870#ifdef NCURSES_WGETCH_EVENTS
1871#define EVENTLIST_0th(param) param
1872#define EVENTLIST_1st(param) param
1873#define EVENTLIST_2nd(param) , param
1874#define TWAIT_MASK (TW_ANY | TW_EVENT)
1875#else
1876#define EVENTLIST_0th(param) void
1877#define EVENTLIST_1st(param) /* nothing */
1878#define EVENTLIST_2nd(param) /* nothing */
1879#define TWAIT_MASK TW_ANY
1880#endif
1881
1882#if NCURSES_EXPANDED && NCURSES_EXT_FUNCS
1883
1884#undef  toggle_attr_on
1885#define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at)
1886extern NCURSES_EXPORT(void) _nc_toggle_attr_on (attr_t *, attr_t);
1887
1888#undef  toggle_attr_off
1889#define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at)
1890extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t);
1891
1892#undef  DelCharCost
1893#define DelCharCost(sp, count) NCURSES_SP_NAME(_nc_DelCharCost)(NCURSES_SP_ARGx count)
1894
1895#undef  InsCharCost
1896#define InsCharCost(sp, count) NCURSES_SP_NAME(_nc_InsCharCost)(NCURSES_SP_ARGx count)
1897
1898extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_DelCharCost) (NCURSES_SP_DCLx int _c);
1899extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_InsCharCost) (NCURSES_SP_DCLx int _c);
1900
1901#undef  UpdateAttrs
1902#define UpdateAttrs(sp,c) NCURSES_SP_NAME(_nc_UpdateAttrs)(NCURSES_SP_ARGx CHREF(c))
1903
1904#if USE_WIDEC_SUPPORT || defined(NEED_NCURSES_CH_T)
1905extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx CARG_CH_T _c);
1906#else
1907extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx chtype c);
1908#endif
1909
1910#if NCURSES_SP_FUNCS
1911extern NCURSES_EXPORT(int) _nc_DelCharCost (int);
1912extern NCURSES_EXPORT(int) _nc_InsCharCost (int);
1913extern NCURSES_EXPORT(void) _nc_UpdateAttrs (CARG_CH_T);
1914#endif /* NCURSES_SP_FUNCS */
1915
1916#else
1917
1918extern NCURSES_EXPORT(void) _nc_expanded (void);
1919
1920#endif
1921
1922#if !NCURSES_EXT_FUNCS
1923#define set_escdelay(value) ESCDELAY = value
1924#endif
1925
1926#if !HAVE_GETCWD
1927#define getcwd(buf,len) getwd(buf)
1928#endif
1929
1930#define save_ttytype(termp) \
1931	if (TerminalType(termp).term_names != 0) { \
1932	    _nc_STRNCPY(ttytype, \
1933	    		TerminalType(termp).term_names, \
1934			NAMESIZE - 1); \
1935	    ttytype[NAMESIZE - 1] = '\0'; \
1936	}
1937
1938#if !NCURSES_WCWIDTH_GRAPHICS
1939extern NCURSES_EXPORT(int) _nc_wacs_width(unsigned);
1940#else
1941#define _nc_wacs_width(ch) wcwidth(ch)
1942#endif
1943
1944/* charable.c */
1945#if USE_WIDEC_SUPPORT
1946extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t);
1947extern NCURSES_EXPORT(int) _nc_to_char(wint_t);
1948extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int);
1949#endif
1950
1951/* comp_captab.c */
1952typedef struct {
1953	short	nte_name;	/* offset of name to hash on */
1954	int	nte_type;	/* BOOLEAN, NUMBER or STRING */
1955	short	nte_index;	/* index of associated variable in its array */
1956	short	nte_link;	/* index in table of next hash, or -1 */
1957} name_table_data;
1958
1959typedef struct
1960{
1961	short	from;
1962	short	to;
1963	short	source;
1964} alias_table_data;
1965
1966/* comp_userdefs.c */
1967typedef struct {
1968	short	ute_name;	/* offset of name to hash on */
1969	unsigned ute_type;	/* mask (BOOLEAN, NUMBER, STRING) */
1970	unsigned ute_argc;	/* number of parameters */
1971	unsigned ute_args;	/* bit-mask for string parameters */
1972	short	ute_index;	/* index of associated variable in its array */
1973	short	ute_link;	/* index in table of next hash, or -1 */
1974} user_table_data;
1975
1976/* doupdate.c */
1977#if USE_XMC_SUPPORT
1978extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t);
1979#endif
1980
1981/* hardscroll.c */
1982#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
1983extern NCURSES_EXPORT(void) _nc_linedump (void);
1984#endif
1985
1986/* lib_acs.c */
1987extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */
1988extern NCURSES_EXPORT(int)  _nc_msec_cost (const char *const, int);
1989
1990/* lib_addch.c */
1991#if USE_WIDEC_SUPPORT
1992extern NCURSES_EXPORT(int) _nc_build_wch(WINDOW *win, ARG_CH_T ch);
1993#endif
1994
1995/* lib_addstr.c */
1996#if USE_WIDEC_SUPPORT && !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
1997extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *);
1998#endif
1999
2000/* lib_color.c */
2001extern NCURSES_EXPORT(int) _nc_init_color(SCREEN *, int, int, int, int);
2002extern NCURSES_EXPORT(int) _nc_init_pair(SCREEN *, int, int, int);
2003extern NCURSES_EXPORT(int) _nc_pair_content(SCREEN *, int, int *, int *);
2004extern NCURSES_EXPORT(bool) _nc_reset_colors(void);
2005extern NCURSES_EXPORT(void) _nc_reserve_pairs(SCREEN *, int);
2006extern NCURSES_EXPORT(void) _nc_change_pair(SCREEN *, int);
2007
2008#define ReservePairs(sp,want) \
2009	    if ((sp->_color_pairs == 0) || (want >= sp->_pair_alloc)) \
2010		_nc_reserve_pairs(sp, want)
2011
2012/* lib_getch.c */
2013extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, int *, int EVENTLIST_2nd(_nc_eventlist *));
2014
2015/* lib_insch.c */
2016extern NCURSES_EXPORT(int) _nc_insert_ch(SCREEN *, WINDOW *, chtype);
2017
2018/* lib_mvcur.c */
2019#define INFINITY	1000000	/* cost: too high to use */
2020
2021extern NCURSES_EXPORT(int) _nc_mvcur(int yold, int xold, int ynew, int xnew);
2022
2023extern NCURSES_EXPORT(void) _nc_mvcur_init (void);
2024extern NCURSES_EXPORT(void) _nc_mvcur_resume (void);
2025extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void);
2026
2027extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int);
2028
2029extern NCURSES_EXPORT(void) _nc_screen_init (void);
2030extern NCURSES_EXPORT(void) _nc_screen_resume (void);
2031extern NCURSES_EXPORT(void) _nc_screen_wrap (void);
2032
2033/* lib_mouse.c */
2034extern NCURSES_EXPORT(bool) _nc_has_mouse (SCREEN *);
2035
2036/* lib_mvcur.c */
2037#define INFINITY	1000000	/* cost: too high to use */
2038#define BAUDBYTE	9	/* 9 = 7 bits + 1 parity + 1 stop */
2039
2040/* lib_setup.c */
2041extern NCURSES_EXPORT(char *) _nc_get_locale(void);
2042extern NCURSES_EXPORT(int)    _nc_unicode_locale(void);
2043extern NCURSES_EXPORT(int)    _nc_locale_breaks_acs(TERMINAL *);
2044extern NCURSES_EXPORT(int)    _nc_setupterm(const char *, int, int *, int);
2045extern NCURSES_EXPORT(void)   _nc_tinfo_cmdch(TERMINAL *, int);
2046
2047#ifdef USE_PTHREADS
2048extern NCURSES_EXPORT(SCREEN *) _nc_find_prescr(void);
2049extern NCURSES_EXPORT(void)   _nc_forget_prescr(void);
2050#else
2051#define _nc_find_prescr()     _nc_prescreen.allocated
2052#define _nc_forget_prescr()   _nc_prescreen.allocated = 0
2053#endif
2054
2055/* lib_set_term.c */
2056extern NCURSES_EXPORT(int)    _nc_ripoffline(int, int(*)(WINDOW*, int));
2057
2058/* lib_setup.c */
2059#define ExitTerminfo(code)    exit_terminfo(code)
2060
2061#define SETUP_FAIL ERR
2062
2063#define ret_error(rc, fmt, p, q)	if (errret) {\
2064					    *errret = rc;\
2065					    q;\
2066					    returnCode(SETUP_FAIL);\
2067					} else {\
2068					    fprintf(stderr, fmt, p);\
2069					    q;\
2070					    ExitTerminfo(EXIT_FAILURE);\
2071					}
2072
2073#define ret_error1(rc, fmt, p, q)	ret_error(rc, "'%s': " fmt, p, q)
2074
2075#define ret_error0(rc, msg)		if (errret) {\
2076					    *errret = rc;\
2077					    returnCode(SETUP_FAIL);\
2078					} else {\
2079					    fprintf(stderr, msg);\
2080					    ExitTerminfo(EXIT_FAILURE);\
2081					}
2082
2083/* lib_tstp.c */
2084#if USE_SIGWINCH
2085extern NCURSES_EXPORT(int) _nc_handle_sigwinch(SCREEN *);
2086#else
2087#define _nc_handle_sigwinch(a) /* nothing */
2088#endif
2089
2090/* lib_wacs.c */
2091#if USE_WIDEC_SUPPORT
2092extern NCURSES_EXPORT(void) _nc_init_wacs(void);
2093#endif
2094
2095typedef struct {
2096    char *s_head;	/* beginning of the string (may be null) */
2097    char *s_tail;	/* end of the string (may be null) */
2098    size_t s_size;	/* current remaining size available */
2099    size_t s_init;	/* total size available */
2100} string_desc;
2101
2102/* strings.c */
2103extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t);
2104extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t);
2105extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, const string_desc *);
2106extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *);
2107extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *);
2108
2109#if !HAVE_STRSTR
2110#define strstr _nc_strstr
2111extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *);
2112#endif
2113
2114/* safe_sprintf.c */
2115extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list);
2116
2117/* tries.c */
2118extern NCURSES_EXPORT(int) _nc_add_to_try (TRIES **, const char *, unsigned);
2119extern NCURSES_EXPORT(char *) _nc_expand_try (TRIES *, unsigned, int *, size_t);
2120extern NCURSES_EXPORT(int) _nc_remove_key (TRIES **, unsigned);
2121extern NCURSES_EXPORT(int) _nc_remove_string (TRIES **, const char *);
2122
2123/* elsewhere ... */
2124extern NCURSES_EXPORT(SCREEN *) _nc_screen_of (WINDOW *);
2125extern NCURSES_EXPORT(TERMINAL*) _nc_get_cur_term (void);
2126extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int);
2127extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t);
2128extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *);
2129extern NCURSES_EXPORT(char *) _nc_tracechar (SCREEN *, int);
2130extern NCURSES_EXPORT(char *) _nc_tracemouse (SCREEN *, MEVENT const *);
2131extern NCURSES_EXPORT(char *) _nc_trace_mmask_t (SCREEN *, mmask_t);
2132extern NCURSES_EXPORT(int) _nc_access (const char *, int);
2133extern NCURSES_EXPORT(int) _nc_baudrate (int);
2134extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *);
2135extern NCURSES_EXPORT(int) _nc_getenv_num (const char *);
2136extern NCURSES_EXPORT(int) _nc_keypad (SCREEN *, int);
2137extern NCURSES_EXPORT(int) _nc_ospeed (int);
2138extern NCURSES_EXPORT(int) _nc_outch (int);
2139extern NCURSES_EXPORT(int) _nc_putchar (int);
2140extern NCURSES_EXPORT(int) _nc_putp(const char *, const char *);
2141extern NCURSES_EXPORT(int) _nc_putp_flush(const char *, const char *);
2142extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE2 *const);
2143extern NCURSES_EXPORT(int) _nc_setup_tinfo(const char *, TERMTYPE2 *);
2144extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, int, int);
2145extern NCURSES_EXPORT(int) _nc_timed_wait (SCREEN *, int, int, int * EVENTLIST_2nd(_nc_eventlist *));
2146extern NCURSES_EXPORT(int) _nc_trans_string (char *, const char *);
2147extern NCURSES_EXPORT(void) _nc_init_termtype (TERMTYPE2 *const);
2148extern NCURSES_EXPORT(void) _nc_do_color (int, int, int, NCURSES_OUTC);
2149extern NCURSES_EXPORT(void) _nc_flush (void);
2150extern NCURSES_EXPORT(void) _nc_free_entry (ENTRY *, TERMTYPE2 *);
2151extern NCURSES_EXPORT(void) _nc_freeall (void);
2152extern NCURSES_EXPORT(void) _nc_hash_map (void);
2153extern NCURSES_EXPORT(void) _nc_init_keytry (SCREEN *);
2154extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *);
2155extern NCURSES_EXPORT(void) _nc_make_oldhash (int i);
2156extern NCURSES_EXPORT(void) _nc_reset_input (FILE *, char *);
2157extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot);
2158extern NCURSES_EXPORT(void) _nc_scroll_optimize (void);
2159extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, int);
2160extern NCURSES_EXPORT(void) _nc_setenv_num (const char *, int);
2161extern NCURSES_EXPORT(void) _nc_signal_handler (int);
2162extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *);
2163extern NCURSES_EXPORT(void) _nc_trace_tries (TRIES *);
2164
2165#if NCURSES_EXT_NUMBERS
2166extern NCURSES_EXPORT(const TERMTYPE2 *) _nc_fallback2 (const char *);
2167#else
2168#define _nc_fallback2(tp) _nc_fallback(tp)
2169#endif
2170
2171extern NCURSES_EXPORT(void) _nc_copy_termtype(TERMTYPE *, const TERMTYPE *);
2172
2173#if NCURSES_EXT_NUMBERS
2174extern NCURSES_EXPORT(void) _nc_copy_termtype2 (TERMTYPE2 *, const TERMTYPE2 *);
2175extern NCURSES_EXPORT(void) _nc_export_termtype2(TERMTYPE *, const TERMTYPE2 *);
2176#else
2177#define _nc_copy_termtype2(dst,src) _nc_copy_termtype((dst),(src))
2178#define _nc_export_termtype2(dst,src) /* nothing */
2179#define _nc_free_termtype2(t) _nc_free_termtype(t)
2180/* also... */
2181#define _nc_read_entry2 _nc_read_entry
2182#endif
2183
2184#if NO_LEAKS
2185extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void);
2186extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void);
2187extern NCURSES_EXPORT(void) _nc_codes_leaks(void);
2188extern NCURSES_EXPORT(void) _nc_comp_captab_leaks(void);
2189extern NCURSES_EXPORT(void) _nc_comp_error_leaks(void);
2190extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void);
2191extern NCURSES_EXPORT(void) _nc_comp_userdefs_leaks(void);
2192extern NCURSES_EXPORT(void) _nc_db_iterator_leaks(void);
2193extern NCURSES_EXPORT(void) _nc_keyname_leaks(void);
2194extern NCURSES_EXPORT(void) _nc_names_leaks(void);
2195extern NCURSES_EXPORT(void) _nc_tgetent_leak(const TERMINAL *);
2196extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void);
2197#endif
2198
2199#if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2200extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T);
2201extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T);
2202extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, int const, int const, NCURSES_CH_T);
2203#endif
2204
2205#if USE_WIDEC_SUPPORT
2206extern NCURSES_EXPORT(int) _nc_insert_wch(WINDOW *, const cchar_t *);
2207#endif
2208
2209#if USE_WIDEC_SUPPORT && !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2210extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *);
2211#endif
2212
2213#if USE_SIZECHANGE
2214extern NCURSES_EXPORT(void) _nc_update_screensize (SCREEN *);
2215#endif
2216
2217#if HAVE_RESIZETERM
2218extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *);
2219#else
2220#define _nc_resize_margins(wp) /* nothing */
2221#endif
2222
2223#ifdef NCURSES_WGETCH_EVENTS
2224extern NCURSES_EXPORT(int) _nc_eventlist_timeout(_nc_eventlist *);
2225#else
2226#define wgetch_events(win, evl) wgetch(win)
2227#define wgetnstr_events(win, str, maxlen, evl) wgetnstr(win, str, maxlen)
2228#endif
2229
2230/*
2231 * Wide-character macros to hide some platform-differences.
2232 */
2233#if USE_WIDEC_SUPPORT
2234
2235#if defined(_NC_WINDOWS) && !defined(_NC_MSC) && !defined(EXP_WIN32_DRIVER)
2236/*
2237 * MinGW has wide-character functions, but they do not work correctly.
2238 */
2239extern int __MINGW_NOTHROW _nc_wctomb(char *, wchar_t);
2240#define wctomb(s,wc) _nc_wctomb(s,wc)
2241#define wcrtomb(s,wc,n) _nc_wctomb(s,wc)
2242
2243extern int __MINGW_NOTHROW _nc_mbtowc(wchar_t *, const char *, size_t);
2244#define mbtowc(pwc,s,n) _nc_mbtowc(pwc,s,n)
2245
2246extern int __MINGW_NOTHROW _nc_mblen(const char *, size_t);
2247#define mblen(s,n) _nc_mblen(s, n)
2248
2249#endif /* _NC_WINDOWS && !_NC_MSC */
2250
2251#if defined(_NC_WINDOWS) || defined(_NC_MINGW)
2252/* see wcwidth.c */
2253extern NCURSES_EXPORT(int) mk_wcwidth(wchar_t);
2254#define wcwidth(ucs) _nc_wcwidth(ucs)
2255#endif
2256
2257#if HAVE_MBTOWC && HAVE_MBLEN
2258#define reset_mbytes(state) IGNORE_RC(mblen(NULL, (size_t) 0)), IGNORE_RC(mbtowc(NULL, NULL, (size_t) 0))
2259#define count_mbytes(buffer,length,state) mblen(buffer,length)
2260#define check_mbytes(wch,buffer,length,state) \
2261	(int) mbtowc(&(wch), buffer, length)
2262#define state_unused
2263#elif HAVE_MBRTOWC && HAVE_MBRLEN
2264#define reset_mbytes(state) init_mb(state)
2265#define count_mbytes(buffer,length,state) mbrlen(buffer,length,&(state))
2266#define check_mbytes(wch,buffer,length,state) \
2267	(int) mbrtowc(&(wch), buffer, length, &(state))
2268#else
2269make an error
2270#endif
2271
2272#endif /* USE_WIDEC_SUPPORT */
2273
2274/*
2275 * Not everyone has vsscanf(), but we'd like to use it for scanw().
2276 */
2277#if !HAVE_VSSCANF
2278extern int vsscanf(const char *str, const char *format, va_list __arg);
2279#endif
2280
2281/* scroll indices */
2282extern NCURSES_EXPORT_VAR(int *) _nc_oldnums;
2283
2284#define USE_SETBUF_0 0
2285
2286#define NC_OUTPUT(sp) ((sp != 0 && sp->_ofp != 0) ? sp->_ofp : stdout)
2287
2288/*
2289 * On systems with a broken linker, define 'SP' as a function to force the
2290 * linker to pull in the data-only module with 'SP'.
2291 */
2292#define _nc_alloc_screen_sp() typeCalloc(SCREEN, 1)
2293
2294#if BROKEN_LINKER
2295#define SP _nc_screen()
2296extern NCURSES_EXPORT(SCREEN *) _nc_screen (void);
2297extern NCURSES_EXPORT(int)      _nc_alloc_screen (void);
2298extern NCURSES_EXPORT(void)     _nc_set_screen (SCREEN *);
2299#define CURRENT_SCREEN          _nc_screen()
2300#else
2301/* current screen is private data; avoid possible linking conflicts too */
2302extern NCURSES_EXPORT_VAR(SCREEN *) SP;
2303#define CURRENT_SCREEN SP
2304#define _nc_alloc_screen()      ((SP = _nc_alloc_screen_sp()) != 0)
2305#define _nc_set_screen(sp)      SP = sp
2306#endif
2307
2308#if NCURSES_SP_FUNCS
2309#define CURRENT_SCREEN_PRE      (IsPreScreen(CURRENT_SCREEN) ? CURRENT_SCREEN : new_prescr())
2310#else
2311#define CURRENT_SCREEN_PRE      CURRENT_SCREEN
2312#endif
2313
2314/*
2315 * We don't want to use the lines or columns capabilities internally, because
2316 * if the application is running multiple screens under X, it is quite possible
2317 * they could all have type xterm but have different sizes!  So...
2318 */
2319#define screen_lines(sp)        (sp)->_lines
2320#define screen_columns(sp)      (sp)->_columns
2321
2322extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int);
2323extern NCURSES_EXPORT(int) _nc_format_slks (NCURSES_SP_DCLx int _c);
2324
2325/*
2326 * Some constants related to SLK's
2327 */
2328#define MAX_SKEY_OLD	   8	/* count of soft keys */
2329#define MAX_SKEY_LEN_OLD   8	/* max length of soft key text */
2330#define MAX_SKEY_PC       12    /* This is what most PC's have */
2331#define MAX_SKEY_LEN_PC    5
2332
2333/* Macro to check whether or not we use a standard format */
2334#define SLK_STDFMT(fmt) (fmt < 3)
2335/* Macro to determine height of label window */
2336#define SLK_LINES(fmt)  (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2))
2337
2338#define MAX_SKEY(fmt)     (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC)
2339#define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC)
2340
2341/*
2342 * Common error messages
2343 */
2344#define MSG_NO_MEMORY "Out of memory"
2345#define MSG_NO_INPUTS "Premature EOF"
2346
2347extern NCURSES_EXPORT(int) _nc_set_tty_mode(TTY *);
2348extern NCURSES_EXPORT(int) _nc_get_tty_mode(TTY *);
2349
2350/* timed_wait flag definitions */
2351#define TW_NONE    0
2352#define TW_INPUT   1
2353#define TW_MOUSE   2
2354#define TW_ANY     (TW_INPUT | TW_MOUSE)
2355#define TW_EVENT   4
2356
2357#define SetSafeOutcWrapper(outc)	    \
2358    SCREEN* sp = CURRENT_SCREEN;            \
2359    struct screen outc_wrapper;		    \
2360    if (sp==0) {                            \
2361	sp = &outc_wrapper;                 \
2362	memset(sp,0,sizeof(struct screen)); \
2363	sp->_outch = _nc_outc_wrapper;      \
2364    }\
2365    sp->jump = outc
2366
2367#ifdef USE_TERM_DRIVER
2368
2369typedef struct _termInfo
2370{
2371    bool caninit;
2372
2373    bool hascolor;
2374    bool initcolor;
2375    bool canchange;
2376
2377    int  tabsize;
2378
2379    int  maxcolors;
2380    int  maxpairs;
2381    int  nocolorvideo;
2382
2383    int  numbuttons;
2384    int  numlabels;
2385    int  labelwidth;
2386    int  labelheight;
2387
2388    const color_t* defaultPalette;
2389} TerminalInfo;
2390
2391typedef struct term_driver {
2392    bool   isTerminfo;
2393    const char* (*td_name)(struct DriverTCB*);
2394    bool   (*td_CanHandle)(struct DriverTCB*, const char*, int*);
2395    void   (*td_init)(struct DriverTCB*);
2396    void   (*td_release)(struct DriverTCB*);
2397    int    (*td_size)(struct DriverTCB*, int* Line, int *Cols);
2398    int    (*td_sgmode)(struct DriverTCB*, int setFlag, TTY*);
2399    chtype (*td_conattr)(struct DriverTCB*);
2400    int    (*td_hwcur)(struct DriverTCB*, int yold, int xold, int y, int x);
2401    int    (*td_mode)(struct DriverTCB*, int progFlag, int defFlag);
2402    bool   (*td_rescol)(struct DriverTCB*);
2403    bool   (*td_rescolors)(struct DriverTCB*);
2404    void   (*td_color)(struct DriverTCB*, int fore, int color, int(*)(SCREEN*, int));
2405    int    (*td_doBeepOrFlash)(struct DriverTCB*, int);
2406    void   (*td_initpair)(struct DriverTCB*, int, int, int);
2407    void   (*td_initcolor)(struct DriverTCB*, int, int, int, int);
2408    void   (*td_docolor)(struct DriverTCB*, int, int, int, int(*)(SCREEN*, int));
2409    void   (*td_initmouse)(struct DriverTCB*);
2410    int    (*td_testmouse)(struct DriverTCB*, int EVENTLIST_2nd(_nc_eventlist*));
2411    void   (*td_setfilter)(struct DriverTCB*);
2412    void   (*td_hwlabel)(struct DriverTCB*, int, char*);
2413    void   (*td_hwlabelOnOff)(struct DriverTCB*, int);
2414    int    (*td_update)(struct DriverTCB*);
2415    int    (*td_defaultcolors)(struct DriverTCB*, int, int);
2416    int    (*td_print)(struct DriverTCB*, char*, int);
2417    int    (*td_getsize)(struct DriverTCB*, int*, int*);
2418    int    (*td_setsize)(struct DriverTCB*, int, int);
2419    void   (*td_initacs)(struct DriverTCB*, chtype*, chtype*);
2420    void   (*td_scinit)(SCREEN *);
2421    void   (*td_scexit)(SCREEN *);
2422    int    (*td_twait)(struct DriverTCB*, int, int, int* EVENTLIST_2nd(_nc_eventlist*));
2423    int    (*td_read)(struct DriverTCB*, int*);
2424    int    (*td_nap)(struct DriverTCB*, int);
2425    int    (*td_kpad)(struct DriverTCB*, int);
2426    int    (*td_kyOk)(struct DriverTCB*, int, int);
2427    bool   (*td_kyExist)(struct DriverTCB*, int);
2428    int    (*td_cursorSet)(struct DriverTCB*, int);
2429} TERM_DRIVER;
2430
2431typedef struct DriverTCB
2432{
2433    TERMINAL      term;   /* needs to be the first Element !!! */
2434    TERM_DRIVER*  drv;    /* The driver for that Terminal */
2435    SCREEN*       csp;    /* The screen that owns that Terminal */
2436    TerminalInfo  info;   /* Driver independent core capabilities of the Terminal */
2437    void*         prop;   /* Driver dependent property storage to be used by the Driver */
2438    long          magic;
2439} TERMINAL_CONTROL_BLOCK;
2440
2441#define NCDRV_MAGIC(id) (0x47110000 | (id&0xffff))
2442#define NCDRV_TINFO      0x01
2443#define NCDRV_WINCONSOLE 0x02
2444
2445#define TCBOf(sp)    ((TERMINAL_CONTROL_BLOCK*)(TerminalOf(sp)))
2446#define InfoOf(sp)   TCBOf(sp)->info
2447#define CallDriver(sp,method)                        TCBOf(sp)->drv->method(TCBOf(sp))
2448#define CallDriver_1(sp,method,arg1)                 TCBOf(sp)->drv->method(TCBOf(sp),arg1)
2449#define CallDriver_2(sp,method,arg1,arg2)            TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2)
2450#define CallDriver_3(sp,method,arg1,arg2,arg3)       TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2,arg3)
2451#define CallDriver_4(sp,method,arg1,arg2,arg3,arg4)  TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2,arg3,arg4)
2452
2453extern NCURSES_EXPORT_VAR(const color_t*) _nc_cga_palette;
2454extern NCURSES_EXPORT_VAR(const color_t*) _nc_hls_palette;
2455
2456extern NCURSES_EXPORT(int)      _nc_get_driver(TERMINAL_CONTROL_BLOCK*, const char*, int*);
2457extern NCURSES_EXPORT(void)     _nc_get_screensize_ex(SCREEN *, TERMINAL *, int *, int *);
2458#endif /* USE_TERM_DRIVER */
2459
2460/*
2461 * Entrypoints which are actually provided in the terminal driver, which would
2462 * be an sp-name otherwise.
2463 */
2464#ifdef USE_TERM_DRIVER
2465#define TINFO_HAS_KEY           _nc_tinfo_has_key
2466#define TINFO_DOUPDATE          _nc_tinfo_doupdate
2467#define TINFO_MVCUR             _nc_tinfo_mvcur
2468extern NCURSES_EXPORT(int)      TINFO_HAS_KEY(SCREEN*, int);
2469extern NCURSES_EXPORT(int)      TINFO_DOUPDATE(SCREEN *);
2470extern NCURSES_EXPORT(int)      TINFO_MVCUR(SCREEN*, int, int, int, int);
2471#else
2472#define TINFO_HAS_KEY           NCURSES_SP_NAME(has_key)
2473#define TINFO_DOUPDATE          NCURSES_SP_NAME(doupdate)
2474#define TINFO_MVCUR             NCURSES_SP_NAME(_nc_mvcur)
2475#endif
2476
2477#if defined(EXP_WIN32_DRIVER)
2478#include <nc_win32.h>
2479#endif
2480
2481/*
2482 * Entrypoints using an extra parameter with the terminal driver.
2483 */
2484#ifdef USE_TERM_DRIVER
2485extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, TERMINAL *, int *, int *);
2486extern NCURSES_EXPORT(int)    _nc_setupterm_ex(TERMINAL **, const char *, int , int *, int);
2487#define TINFO_GET_SIZE(sp, tp, lp, cp) \
2488	_nc_get_screensize(sp, tp, lp, cp)
2489#define TINFO_SET_CURTERM(sp, tp) \
2490	NCURSES_SP_NAME(set_curterm)(sp, tp)
2491#define TINFO_SETUP_TERM(tpp, name, fd, err, reuse) \
2492	_nc_setupterm_ex(tpp, name, fd, err, reuse)
2493#else /* !USE_TERM_DRIVER */
2494extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, int *, int *);
2495#define TINFO_GET_SIZE(sp, tp, lp, cp) \
2496	_nc_get_screensize(sp, lp, cp)
2497#define TINFO_SET_CURTERM(sp, tp) \
2498	set_curterm(tp)
2499#define TINFO_SETUP_TERM(tpp, name, fd, err, reuse) \
2500	_nc_setupterm(name, fd, err, reuse)
2501#endif /* !USE_TERM_DRIVER */
2502
2503#ifdef EXP_WIN32_DRIVER
2504extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_TINFO_DRIVER;
2505#else
2506#ifdef USE_TERM_DRIVER
2507#if defined(USE_WIN32CON_DRIVER)
2508#include <nc_mingw.h>
2509extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_WIN_DRIVER;
2510extern NCURSES_EXPORT(int)  _nc_mingw_isatty(int fd);
2511extern NCURSES_EXPORT(int)  _nc_mingw_isconsole(int fd);
2512extern NCURSES_EXPORT(int) _nc_mingw_console_read(
2513    SCREEN *sp,
2514    HANDLE  fd,
2515    int *buf);
2516extern NCURSES_EXPORT(int) _nc_mingw_testmouse(
2517    SCREEN * sp,
2518    HANDLE fd,
2519    int delay EVENTLIST_2nd(_nc_eventlist*));
2520#else
2521#endif
2522extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_TINFO_DRIVER;
2523#endif /* USE_TERM_DRIVER */
2524#endif /* EXP_WIN32_DRIVER */
2525
2526#if defined(USE_TERM_DRIVER) && defined(EXP_WIN32_DRIVER)
2527#define NC_ISATTY(fd) (0 != _nc_console_isatty(fd))
2528#elif defined(USE_TERM_DRIVER) && defined(USE_WIN32CON_DRIVER)
2529#define NC_ISATTY(fd) _nc_mingw_isatty(fd)
2530#else
2531#define NC_ISATTY(fd) isatty(fd)
2532#endif
2533
2534/*
2535 * Perhaps not "real" but possibly not "fake".
2536 */
2537#define IsRealTty(fd,value) \
2538	(NC_ISATTY(fd) \
2539	 && (value = ttyname(fd)) != NULL \
2540	 && strncmp(value, "/dev/pts/", 9))
2541
2542#ifdef USE_TERM_DRIVER
2543#  define IsTermInfo(sp)       ((TCBOf(sp) != 0) && ((TCBOf(sp)->drv->isTerminfo)))
2544#  define HasTInfoTerminal(sp) ((0 != TerminalOf(sp)) && IsTermInfo(sp))
2545#  if defined(EXP_WIN32_DRIVER)
2546#    define IsTermInfoOnConsole(sp) (IsTermInfo(sp) && _nc_console_test(TerminalOf(sp)->Filedes))
2547#  elif defined(USE_WIN32CON_DRIVER)
2548#    define IsTermInfoOnConsole(sp) (IsTermInfo(sp) && _nc_mingw_isconsole(TerminalOf(sp)->Filedes))
2549#  else
2550#    define IsTermInfoOnConsole(sp) FALSE
2551#  endif
2552#else
2553#  define IsTermInfo(sp)       TRUE
2554#  define HasTInfoTerminal(sp) (0 != TerminalOf(sp))
2555#  if defined(EXP_WIN32_DRIVER)
2556#    define IsTermInfoOnConsole(sp) _nc_console_test(TerminalOf(sp)->Filedes)
2557#  else
2558#    define IsTermInfoOnConsole(sp) FALSE
2559#  endif
2560#endif
2561
2562#define IsValidTIScreen(sp)  (HasTInfoTerminal(sp))
2563
2564/*
2565 * Exported entrypoints beyond the published API
2566 */
2567#if NCURSES_SP_FUNCS
2568extern NCURSES_EXPORT(WINDOW *) _nc_curscr_of(SCREEN*);
2569extern NCURSES_EXPORT(WINDOW *) _nc_newscr_of(SCREEN*);
2570extern NCURSES_EXPORT(WINDOW *) _nc_stdscr_of(SCREEN*);
2571extern NCURSES_EXPORT(int)      _nc_outc_wrapper(SCREEN*,int);
2572
2573#if USE_REENTRANT
2574extern NCURSES_EXPORT(int)       NCURSES_SP_NAME(_nc_TABSIZE)(SCREEN*);
2575extern NCURSES_EXPORT(char *)    NCURSES_SP_NAME(longname)(SCREEN*);
2576#endif
2577
2578#if NCURSES_EXT_FUNCS
2579extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tabsize)(SCREEN*, int);
2580#endif
2581
2582/*
2583 * We put the safe versions of various calls here as they are not published
2584 * part of the API up to now
2585 */
2586extern NCURSES_EXPORT(TERMINAL*) NCURSES_SP_NAME(_nc_get_cur_term) (SCREEN *sp);
2587extern NCURSES_EXPORT(WINDOW *) NCURSES_SP_NAME(_nc_makenew) (SCREEN*, int, int, int, int, int);
2588extern NCURSES_EXPORT(bool)     NCURSES_SP_NAME(_nc_reset_colors)(SCREEN*);
2589extern NCURSES_EXPORT(char *)   NCURSES_SP_NAME(_nc_printf_string)(SCREEN*, const char *, va_list);
2590extern NCURSES_EXPORT(chtype)   NCURSES_SP_NAME(_nc_acs_char)(SCREEN*,int);
2591extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_get_tty_mode)(SCREEN*,TTY*);
2592extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mcprint)(SCREEN*,char*, int);
2593extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_msec_cost)(SCREEN*, const char *, int);
2594extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mvcur)(SCREEN*, int, int, int, int);
2595extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_outch)(SCREEN*, int);
2596extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putchar)(SCREEN*, int);
2597extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp)(SCREEN*, const char *, const char*);
2598extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp_flush)(SCREEN*, const char *, const char *);
2599extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_ripoffline)(SCREEN*, int, int (*)(WINDOW *,int));
2600extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_scrolln)(SCREEN*, int, int, int, int);
2601extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tty_mode)(SCREEN*, TTY*);
2602extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_setupscreen)(SCREEN**, int, int, FILE *, int, int);
2603extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_tgetent)(SCREEN*,char*,const char *);
2604extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_color)(SCREEN*, int, int, int, NCURSES_SP_OUTC);
2605extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_xmc_glitch)(SCREEN*, attr_t);
2606extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_flush)(SCREEN*);
2607extern GCC_NORETURN NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_free_and_exit)(SCREEN*, int);
2608extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_freeall)(SCREEN*);
2609extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_hash_map)(SCREEN*);
2610extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_init_acs)(SCREEN*);
2611extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_make_oldhash)(SCREEN*, int i);
2612extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_init)(SCREEN*);
2613extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_resume)(SCREEN*);
2614extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_wrap)(SCREEN*);
2615extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_init)(SCREEN*);
2616extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_resume)(SCREEN*);
2617extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_wrap)(SCREEN*);
2618extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_oldhash)(SCREEN*, int n, int top, int bot);
2619extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_optimize)(SCREEN*);
2620extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_set_buffer)(SCREEN*, FILE *, int);
2621
2622extern NCURSES_EXPORT(void)     _nc_cookie_init(SCREEN *sp);
2623
2624#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
2625extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_linedump)(SCREEN*);
2626#endif
2627
2628#if USE_WIDEC_SUPPORT
2629extern NCURSES_EXPORT(wchar_t *) NCURSES_SP_NAME(_nc_wunctrl)(SCREEN*, cchar_t *);
2630#endif
2631
2632#endif /* NCURSES_SP_FUNCS */
2633
2634#if NCURSES_SP_FUNCS
2635
2636#define safe_keyname NCURSES_SP_NAME(keyname)
2637#define safe_unctrl  NCURSES_SP_NAME(unctrl)
2638#define safe_ungetch NCURSES_SP_NAME(ungetch)
2639
2640#else
2641
2642#define safe_keyname _nc_keyname
2643#define safe_unctrl  _nc_unctrl
2644#define safe_ungetch _nc_ungetch
2645
2646extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_keyname (SCREEN *, int);
2647extern NCURSES_EXPORT(int) _nc_ungetch (SCREEN *, int);
2648extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_unctrl (SCREEN *, chtype);
2649
2650#endif
2651
2652#ifdef EXP_XTERM_1005
2653extern NCURSES_EXPORT(int) _nc_conv_to_utf8(unsigned char *, unsigned, unsigned);
2654extern NCURSES_EXPORT(int) _nc_conv_to_utf32(unsigned *, const char *, unsigned);
2655#endif
2656
2657#ifdef __cplusplus
2658}
2659#endif
2660
2661/* *INDENT-ON* */
2662
2663#endif /* CURSES_PRIV_H */
2664