1/****************************************************************************
2 * Copyright 2018-2019,2020 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 1.628 2020/02/02 23:34:34 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#if HAVE_SYS_BSDTYPES_H && !(defined(_WIN32) || defined(_WIN64))
76#include <sys/bsdtypes.h>	/* needed for ISC */
77#endif
78
79#if HAVE_LIMITS_H
80# include <limits.h>
81#elif HAVE_SYS_PARAM_H
82# include <sys/param.h>
83#endif
84
85#include <assert.h>
86#include <stdio.h>
87
88#include <errno.h>
89
90#if defined __hpux
91#  ifndef EILSEQ
92#    define EILSEQ 47
93#  endif
94#endif
95
96#ifndef PATH_MAX
97# if defined(_POSIX_PATH_MAX)
98#  define PATH_MAX _POSIX_PATH_MAX
99# elif defined(MAXPATHLEN)
100#  define PATH_MAX MAXPATHLEN
101# else
102#  define PATH_MAX 255	/* the Posix minimum path-size */
103# endif
104#endif
105
106#if DECL_ERRNO
107extern int errno;
108#endif
109
110/* Some systems have a broken 'select()', but workable 'poll()'.  Use that */
111#if HAVE_WORKING_POLL
112#define USE_FUNC_POLL 1
113#if HAVE_POLL_H
114#include <poll.h>
115#else
116#include <sys/poll.h>
117#endif
118#else
119#define USE_FUNC_POLL 0
120#endif
121
122#if HAVE_INTTYPES_H
123# include <inttypes.h>
124#else
125# if HAVE_STDINT_H
126#  include <stdint.h>
127# endif
128#endif
129
130/* include signal.h before curses.h to work-around defect in glibc 2.1.3 */
131#include <signal.h>
132
133/* Alessandro Rubini's GPM (general-purpose mouse) */
134#if HAVE_LIBGPM && HAVE_GPM_H
135#define USE_GPM_SUPPORT 1
136#else
137#define USE_GPM_SUPPORT 0
138#endif
139
140/* QNX mouse support */
141#if defined(__QNX__) && !defined(__QNXNTO__)
142#define USE_QNX_MOUSE 1
143#else
144#define USE_QNX_MOUSE 0
145#endif
146
147/* EMX mouse support */
148#ifdef __EMX__
149#define USE_EMX_MOUSE 1
150#else
151#define USE_EMX_MOUSE 0
152#endif
153
154/* kLIBC keyboard/mouse support */
155#if defined(__OS2__) && defined(__KLIBC__)
156#define USE_KLIBC_KBD   1
157#define USE_KLIBC_MOUSE 1
158#else
159#define USE_KLIBC_KBD   0
160#define USE_KLIBC_MOUSE 0
161#endif
162
163#define DEFAULT_MAXCLICK 166
164#define EV_MAX		8	/* size of mouse circular event queue */
165
166/*
167 * If we don't have signals to support it, don't add a sigwinch handler.
168 * In any case, resizing is an extended feature.  Use it if we've got it.
169 */
170#if !NCURSES_EXT_FUNCS
171#undef HAVE_SIZECHANGE
172#define HAVE_SIZECHANGE 0
173#endif
174
175#if HAVE_SIZECHANGE && USE_SIGWINCH && defined(SIGWINCH)
176#define USE_SIZECHANGE 1
177#else
178#define USE_SIZECHANGE 0
179#undef USE_SIGWINCH
180#define USE_SIGWINCH 0
181#endif
182
183/*
184 * When building in the MSYS2 environment, the automatic discovery of
185 * the path separator in configure doesn't work properly. So, if building
186 * for MinGW, we enforce the correct Windows PATH separator
187 */
188#ifdef _WIN32
189#  ifdef NCURSES_PATHSEP
190#    undef NCURSES_PATHSEP
191#  endif
192#  define NCURSES_PATHSEP ';'
193#endif
194
195/*
196 * If desired, one can configure this, disabling environment variables that
197 * point to custom terminfo/termcap locations.
198 */
199#ifdef USE_ROOT_ENVIRON
200#define use_terminfo_vars() 1
201#else
202#define use_terminfo_vars() _nc_env_access()
203extern NCURSES_EXPORT(int) _nc_env_access (void);
204#endif
205
206/*
207 * Not all platforms have memmove; some have an equivalent bcopy.  (Some may
208 * have neither).
209 */
210#if USE_OK_BCOPY
211#define memmove(d,s,n) bcopy(s,d,n)
212#elif USE_MY_MEMMOVE
213#define memmove(d,s,n) _nc_memmove(d,s,n)
214extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
215#endif
216
217/*
218 * If we have va_copy(), use it for assigning va_list's.
219 */
220#if defined(HAVE___VA_COPY)
221#define begin_va_copy(dst,src)	__va_copy(dst, src)
222#define end_va_copy(dst)	va_end(dst)
223#elif defined(va_copy) || defined(HAVE_VA_COPY)
224#define begin_va_copy(dst,src)	va_copy(dst, src)
225#define end_va_copy(dst)	va_end(dst)
226#else
227#define begin_va_copy(dst,src) (dst) = (src)
228#define end_va_copy(dst)	/* nothing */
229#endif
230
231/*
232 * Either/both S_ISxxx and/or S_IFxxx are defined in sys/types.h; some systems
233 * lack one or the other.
234 */
235#ifndef S_ISDIR
236#define S_ISDIR(mode) ((mode & S_IFMT) == S_IFDIR)
237#endif
238
239#ifndef S_ISREG
240#define S_ISREG(mode) ((mode & S_IFMT) == S_IFREG)
241#endif
242
243/*
244 * POSIX ignores the "b", which c89 specified.  Some very old systems do not
245 * accept it.
246 */
247#if USE_FOPEN_BIN_R
248#define BIN_R	"rb"
249#define BIN_W	"wb"
250#else
251#define BIN_R	"r"
252#define BIN_W	"w"
253#endif
254
255/*
256 * Scroll hints are useless when hashmap is used
257 */
258#if !USE_SCROLL_HINTS
259#if !USE_HASHMAP
260#define USE_SCROLL_HINTS 1
261#else
262#define USE_SCROLL_HINTS 0
263#endif
264#endif
265
266#if USE_SCROLL_HINTS
267#define if_USE_SCROLL_HINTS(stmt) stmt
268#else
269#define if_USE_SCROLL_HINTS(stmt) /*nothing*/
270#endif
271
272#include <nc_string.h>
273
274/*
275 * Options for terminal drivers, etc...
276 */
277#ifdef USE_TERM_DRIVER
278#define USE_SP_RIPOFF     1
279#define USE_SP_TERMTYPE   1
280#define USE_SP_WINDOWLIST 1
281#endif
282
283/*
284 * Note:  ht/cbt expansion flakes out randomly under Linux 1.1.47, but only
285 * when we're throwing control codes at the screen at high volume.  To see
286 * this, re-enable USE_HARD_TABS and run worm for a while.  Other systems
287 * probably don't want to define this either due to uncertainties about tab
288 * delays and expansion in raw mode.
289 */
290
291#define TRIES struct tries
292typedef TRIES {
293	TRIES    *child;            /* ptr to child.  NULL if none          */
294	TRIES    *sibling;          /* ptr to sibling.  NULL if none        */
295	unsigned char    ch;        /* character at this node               */
296	unsigned short   value;     /* code of string so far.  0 if none.   */
297#undef TRIES
298} TRIES;
299
300/*
301 * Common/troublesome character definitions
302 */
303#define StringOf(ch) {ch, 0}
304
305#define L_BRACE '{'
306#define R_BRACE '}'
307#define S_QUOTE '\''
308#define D_QUOTE '"'
309
310#define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~"
311
312/*
313 * Structure for palette tables
314 */
315
316#define MAXCOLUMNS    135
317#define MAXLINES      66
318#define FIFO_SIZE     MAXCOLUMNS+2  /* for nocbreak mode input */
319
320#define ACS_LEN       128
321
322#define WINDOWLIST struct _win_list
323
324#if USE_WIDEC_SUPPORT
325#define _nc_bkgd    _bkgrnd
326#else
327#undef _XOPEN_SOURCE_EXTENDED
328#undef _XPG5
329#define _nc_bkgd    _bkgd
330#define wgetbkgrnd(win, wch)	((*wch = win->_bkgd) != 0 ? OK : ERR)
331#define wbkgrnd	    wbkgd
332#endif
333
334#undef NCURSES_OPAQUE
335#define NCURSES_INTERNALS 1
336#define NCURSES_OPAQUE 0
337
338#include <curses.h>	/* we'll use -Ipath directive to get the right one! */
339
340typedef struct
341{
342    int red, green, blue;	/* what color_content() returns */
343    int r, g, b;		/* params to init_color() */
344    int init;			/* true if we called init_color() */
345}
346color_t;
347
348typedef union {
349    struct {
350	unsigned char red;
351	unsigned char green;
352	unsigned char blue;
353    } bits;			/* bits per color-value in RGB */
354    unsigned value;
355} rgb_bits_t;
356
357/*
358 * If curses.h did not expose the SCREEN-functions, then we do not need the
359 * parameter in the corresponding unextended functions.
360 */
361
362#define USE_SP_FUNC_SUPPORT     NCURSES_SP_FUNCS
363#define USE_EXT_SP_FUNC_SUPPORT (NCURSES_SP_FUNCS && NCURSES_EXT_FUNCS)
364
365#if NCURSES_SP_FUNCS
366#define SP_PARM         sp	/* use parameter */
367#define NCURSES_SP_ARG          SP_PARM
368#define NCURSES_SP_DCL  SCREEN *NCURSES_SP_ARG
369#define NCURSES_SP_DCL0 NCURSES_SP_DCL
370#define NCURSES_SP_ARGx         NCURSES_SP_ARG,
371#define NCURSES_SP_DCLx SCREEN *NCURSES_SP_ARGx
372#else
373#define SP_PARM         SP	/* use global variable */
374#define NCURSES_SP_ARG
375#define NCURSES_SP_DCL
376#define NCURSES_SP_DCL0 void
377#define NCURSES_SP_ARGx
378#define NCURSES_SP_DCLx
379#endif
380
381#include <nc_panel.h>
382
383#include <term.h>
384#include <nc_termios.h>
385
386#define IsPreScreen(sp)      (((sp) != 0) && sp->_prescreen)
387#define HasTerminal(sp)      (((sp) != 0) && (0 != ((sp)->_term)))
388#define IsValidScreen(sp)    (HasTerminal(sp) && !IsPreScreen(sp))
389
390#if USE_REENTRANT
391#define CurTerm              _nc_prescreen._cur_term
392#else
393#define CurTerm              cur_term
394#endif
395
396#if NCURSES_SP_FUNCS
397#define TerminalOf(sp)       ((sp) ? ((sp)->_term ? (sp)->_term : CurTerm) : CurTerm)
398#else
399#define TerminalOf(sp)       CurTerm
400#endif
401
402/*
403 * The legacy layout for TERMTYPE uses "short" for all of the numbers.  Moving
404 * past that, numeric capabilities can be "int" by using a TERMTYPE2 structure
405 * in TERMINAL, and doing most of the internal work using TERMTYPE2.  There are
406 * a few places (mostly to expose the legacy layout) where the distinction
407 * needs attention.
408 */
409#if NCURSES_EXT_COLORS && HAVE_INIT_EXTENDED_COLOR
410#define NCURSES_EXT_NUMBERS  1
411#define NCURSES_INT2         int
412#define SIZEOF_INT2          4
413#define TerminalType(tp)     (tp)->type2
414#else
415#define NCURSES_EXT_NUMBERS  0
416#define NCURSES_INT2         short
417#define SIZEOF_INT2          2
418#define TerminalType(tp)     (tp)->type
419#endif
420
421#define SIZEOF_SHORT         2
422
423#ifdef CUR
424#undef CUR
425#define CUR TerminalType(cur_term).
426#endif
427
428/*
429 * Reduce dependency on cur_term global by using terminfo data from SCREEN's
430 * pointer to this data.
431 */
432#ifdef USE_SP_TERMTYPE
433#undef CUR
434#endif
435
436#define SP_TERMTYPE TerminalType(TerminalOf(sp)).
437
438#include <term_entry.h>
439
440#include <nc_tparm.h>
441
442/*
443 * Simplify ifdef's for the "*_ATTR" macros in case italics are not configured.
444 */
445#if defined(A_ITALIC) && defined(exit_italics_mode)
446#define USE_ITALIC 1
447#else
448#define USE_ITALIC 0
449#undef  A_ITALIC
450#define A_ITALIC 0
451#endif
452
453/*
454 * Use these macros internally, to make tracing less verbose.  But leave the
455 * option for compiling the tracing into the library.
456 */
457#if 1
458#define ColorPair(n)		(NCURSES_BITS(n, 0) & A_COLOR)
459#define PairNumber(a)		(NCURSES_CAST(int,(((unsigned long)(a) & A_COLOR) >> NCURSES_ATTR_SHIFT)))
460#else
461#define ColorPair(pair)		COLOR_PAIR(pair)
462#define PairNumber(attr)	PAIR_NUMBER(attr)
463#endif
464
465#define unColor(n)		unColor2(AttrOf(n))
466#define unColor2(a)		((a) & ALL_BUT_COLOR)
467
468/*
469 * Extended-colors stores the color pair in a separate struct-member than the
470 * attributes.  But for compatibility, we handle most cases where a program
471 * written for non-extended colors stores the color in the attributes by
472 * checking for a color pair in both places.
473 */
474#if NCURSES_EXT_COLORS
475#define if_EXT_COLORS(stmt)	stmt
476#define SetPair(value,p)	SetPair2((value).ext_color, AttrOf(value), p)
477#define SetPair2(c,a,p)		c = (p), \
478				a = (unColor2(a) | ColorPair(oldColor(c)))
479#define GetPair(value)		GetPair2((value).ext_color, AttrOf(value))
480#define GetPair2(c,a)		((c) ? (c) : PairNumber(a))
481#define oldColor(p)		(((p) > 255) ? 255 : (p))
482#define GET_WINDOW_PAIR(w)	GetPair2((w)->_color, (w)->_attrs)
483#define SET_WINDOW_PAIR(w,p)	(w)->_color = (p)
484#define SameAttrOf(a,b)		(AttrOf(a) == AttrOf(b) && GetPair(a) == GetPair(b))
485
486#define VIDPUTS(sp,attr,pair)	do { \
487				    int vid_pair = pair; \
488				    NCURSES_SP_NAME(vid_puts)( \
489					NCURSES_SP_ARGx attr, \
490					(NCURSES_PAIRS_T) pair, \
491					&vid_pair, \
492					NCURSES_OUTC_FUNC); \
493				} while (0)
494
495#else /* !NCURSES_EXT_COLORS */
496
497#define if_EXT_COLORS(stmt)	/* nothing */
498#define SetPair(value,p)	RemAttr(value, A_COLOR), \
499				SetAttr(value, AttrOf(value) | ColorPair(p))
500#define GetPair(value)		PairNumber(AttrOf(value))
501#define GET_WINDOW_PAIR(w)	PairNumber(WINDOW_ATTRS(w))
502#define SET_WINDOW_PAIR(w,p)	WINDOW_ATTRS(w) &= ALL_BUT_COLOR, \
503				WINDOW_ATTRS(w) |= ColorPair(p)
504#define SameAttrOf(a,b)		(AttrOf(a) == AttrOf(b))
505
506#define VIDPUTS(sp,attr,pair)	NCURSES_SP_NAME(vidputs)(NCURSES_SP_ARGx attr, NCURSES_OUTC_FUNC)
507
508#endif /* NCURSES_EXT_COLORS */
509
510#define NCURSES_OUTC_FUNC       NCURSES_SP_NAME(_nc_outch)
511#define NCURSES_PUTP2(name,value)    NCURSES_SP_NAME(_nc_putp)(NCURSES_SP_ARGx name, value)
512#define NCURSES_PUTP2_FLUSH(name,value)    NCURSES_SP_NAME(_nc_putp_flush)(NCURSES_SP_ARGx name, value)
513
514#if NCURSES_NO_PADDING
515#define GetNoPadding(sp)	((sp) ? (sp)->_no_padding : _nc_prescreen._no_padding)
516#define SetNoPadding(sp)	_nc_set_no_padding(sp)
517extern NCURSES_EXPORT(void)     _nc_set_no_padding(SCREEN *);
518#else
519#define GetNoPadding(sp)	FALSE
520#define SetNoPadding(sp)	/*nothing*/
521#endif
522
523#define WINDOW_ATTRS(w)		((w)->_attrs)
524
525#define SCREEN_ATTRS(s)		(*((s)->_current_attr))
526#define GET_SCREEN_PAIR(s)	GetPair(SCREEN_ATTRS(s))
527#define SET_SCREEN_PAIR(s,p)	SetPair(SCREEN_ATTRS(s), p)
528
529#if USE_REENTRANT || NCURSES_SP_FUNCS
530NCURSES_EXPORT(int *)        _nc_ptr_Lines (SCREEN *);
531NCURSES_EXPORT(int *)        _nc_ptr_Cols (SCREEN *);
532NCURSES_EXPORT(int *)        _nc_ptr_Tabsize (SCREEN *);
533NCURSES_EXPORT(int *)        _nc_ptr_Escdelay (SCREEN *);
534#endif
535
536#if USE_REENTRANT
537
538#define ptrLines(sp)         (sp ? &(sp->_LINES) : &(_nc_prescreen._LINES))
539#define ptrCols(sp)          (sp ? &(sp->_COLS) : &(_nc_prescreen._COLS))
540#define ptrTabsize(sp)       (sp ? &(sp->_TABSIZE) : &(_nc_prescreen._TABSIZE))
541#define ptrEscdelay(sp)      (sp ? &(sp->_ESCDELAY) : &(_nc_prescreen._ESCDELAY))
542
543#define SET_LINES(value)     *_nc_ptr_Lines(SP_PARM) = value
544#define SET_COLS(value)      *_nc_ptr_Cols(SP_PARM) = value
545#define SET_TABSIZE(value)   *_nc_ptr_Tabsize(SP_PARM) = value
546#define SET_ESCDELAY(value)  *_nc_ptr_Escdelay(SP_PARM) = value
547
548#else
549
550#define ptrLines(sp)         &LINES
551#define ptrCols(sp)          &COLS
552#define ptrTabsize(sp)       &TABSIZE
553#define ptrEscdelay(sp)      &ESCDELAY
554
555#define SET_LINES(value)     LINES = value
556#define SET_COLS(value)      COLS = value
557#define SET_TABSIZE(value)   TABSIZE = value
558#define SET_ESCDELAY(value)  ESCDELAY = value
559
560#endif
561
562#define HasHardTabs()	(NonEmpty(clear_all_tabs) && NonEmpty(set_tab))
563
564#define TR_MUTEX(data) _tracef("%s@%d: me:%08lX COUNT:%2u/%2d/%6d/%2d/%s%9u: " #data, \
565	    __FILE__, __LINE__, \
566	    (unsigned long) (pthread_self()), \
567	    data.__data.__lock, \
568	    data.__data.__count, \
569	    data.__data.__owner, \
570	    data.__data.__kind, \
571	    (data.__data.__nusers > 5) ? " OOPS " : "", \
572	    data.__data.__nusers)
573#define TR_GLOBAL_MUTEX(name) TR_MUTEX(_nc_globals.mutex_##name)
574
575#if USE_WEAK_SYMBOLS
576#if defined(__GNUC__)
577#  if defined __USE_ISOC99
578#    define _cat_pragma(exp)	_Pragma(#exp)
579#    define _weak_pragma(exp)	_cat_pragma(weak name)
580#  else
581#    define _weak_pragma(exp)
582#  endif
583#  define _declare(name)	__extension__ extern __typeof__(name) name
584#  define weak_symbol(name)	_weak_pragma(name) _declare(name) __attribute__((weak))
585#else
586#  undef USE_WEAK_SYMBOLS
587#  define USE_WEAK_SYMBOLS 0
588#endif
589#endif
590
591#ifdef USE_PTHREADS
592
593#if USE_REENTRANT
594#include <pthread.h>
595extern NCURSES_EXPORT(void) _nc_init_pthreads(void);
596extern NCURSES_EXPORT(void) _nc_mutex_init(pthread_mutex_t *);
597extern NCURSES_EXPORT(int) _nc_mutex_lock(pthread_mutex_t *);
598extern NCURSES_EXPORT(int) _nc_mutex_trylock(pthread_mutex_t *);
599extern NCURSES_EXPORT(int) _nc_mutex_unlock(pthread_mutex_t *);
600#define _nc_lock_global(name)	_nc_mutex_lock(&_nc_globals.mutex_##name)
601#define _nc_try_global(name)    _nc_mutex_trylock(&_nc_globals.mutex_##name)
602#define _nc_unlock_global(name)	_nc_mutex_unlock(&_nc_globals.mutex_##name)
603
604#else
605#error POSIX threads requires --enable-reentrant option
606#endif
607
608#ifdef USE_PTHREADS
609#  if USE_WEAK_SYMBOLS
610weak_symbol(pthread_sigmask);
611weak_symbol(pthread_kill);
612weak_symbol(pthread_self);
613weak_symbol(pthread_equal);
614weak_symbol(pthread_mutex_init);
615weak_symbol(pthread_mutex_lock);
616weak_symbol(pthread_mutex_unlock);
617weak_symbol(pthread_mutex_trylock);
618weak_symbol(pthread_mutexattr_settype);
619weak_symbol(pthread_mutexattr_init);
620extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
621#    undef  sigprocmask
622#    define sigprocmask(a, b, c) _nc_sigprocmask(a, b, c)
623#    define GetThreadID() (((pthread_self)) ? pthread_self() : (pthread_t) getpid())
624#  else
625#    define GetThreadID() pthread_self()
626#  endif
627#endif
628
629#if HAVE_NANOSLEEP
630#undef HAVE_NANOSLEEP
631#define HAVE_NANOSLEEP 0	/* nanosleep suspends all threads */
632#endif
633
634#else /* !USE_PTHREADS */
635
636#if USE_PTHREADS_EINTR
637#  if USE_WEAK_SYMBOLS
638#include <pthread.h>
639weak_symbol(pthread_sigmask);
640weak_symbol(pthread_kill);
641weak_symbol(pthread_self);
642weak_symbol(pthread_equal);
643extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
644#    undef  sigprocmask
645#    define sigprocmask(a, b, c) _nc_sigprocmask(a, b, c)
646#  endif
647#endif /* USE_PTHREADS_EINTR */
648
649#define _nc_init_pthreads()	/* nothing */
650#define _nc_mutex_init(obj)	/* nothing */
651
652#define _nc_lock_global(name)	/* nothing */
653#define _nc_try_global(name)    0
654#define _nc_unlock_global(name)	/* nothing */
655
656#endif /* USE_PTHREADS */
657
658/*
659 * When using sp-funcs, locks are targeted to SCREEN-level granularity.
660 * So the locking is done in the non-sp-func (which calls the sp-func) rather
661 * than in the sp-func itself.
662 *
663 * Use the _nc_nonsp_XXX functions in the function using "NCURSES_SP_NAME()".
664 * Use the _nc_sp_XXX functions in the function using "#if NCURSES_SP_FUNCS".
665 */
666#if NCURSES_SP_FUNCS
667
668#define _nc_nonsp_lock_global(name)	/* nothing */
669#define _nc_nonsp_try_global(name)    0
670#define _nc_nonsp_unlock_global(name)	/* nothing */
671
672#define _nc_sp_lock_global(name)	_nc_lock_global(name)
673#define _nc_sp_try_global(name)         _nc_try_global(name)
674#define _nc_sp_unlock_global(name)	_nc_unlock_global(name)
675
676#else
677
678#define _nc_nonsp_lock_global(name)	_nc_lock_global(name)
679#define _nc_nonsp_try_global(name)      _nc_try_global(name)
680#define _nc_nonsp_unlock_global(name)	_nc_unlock_global(name)
681
682#define _nc_sp_lock_global(name)	/* nothing */
683#define _nc_sp_try_global(name)    0
684#define _nc_sp_unlock_global(name)	/* nothing */
685
686#endif
687
688#if HAVE_GETTIMEOFDAY
689# define PRECISE_GETTIME 1
690# define TimeType struct timeval
691#else
692# define PRECISE_GETTIME 0
693# define TimeType time_t
694#endif
695
696/*
697 * Definitions for color pairs
698 */
699
700#define MAX_OF_TYPE(t)   (int)(((unsigned t)(~0))>>1)
701
702#include <new_pair.h>
703
704#define isDefaultColor(c)	((c) < 0)
705#define COLOR_DEFAULT		-1
706
707#if defined(USE_BUILD_CC) || (defined(USE_TERMLIB) && !defined(NEED_NCURSES_CH_T))
708
709#undef NCURSES_CH_T		/* this is not a termlib feature */
710#define NCURSES_CH_T void	/* ...but we need a pointer in SCREEN */
711
712#endif	/* USE_TERMLIB */
713
714#ifndef USE_TERMLIB
715struct ldat
716{
717	NCURSES_CH_T	*text;		/* text of the line */
718	NCURSES_SIZE_T	firstchar;	/* first changed character in the line */
719	NCURSES_SIZE_T	lastchar;	/* last changed character in the line */
720	NCURSES_SIZE_T	oldindex;	/* index of the line at last update */
721};
722#endif	/* USE_TERMLIB */
723
724typedef enum {
725	M_XTERM	= -1		/* use xterm's mouse tracking? */
726	,M_NONE = 0		/* no mouse device */
727#if USE_GPM_SUPPORT
728	,M_GPM			/* use GPM */
729#endif
730#if USE_SYSMOUSE
731	,M_SYSMOUSE		/* FreeBSD sysmouse on console */
732#endif
733#ifdef USE_TERM_DRIVER
734	,M_TERM_DRIVER		/* Win32 console, etc */
735#endif
736} MouseType;
737
738typedef enum {
739    	MF_X10 = 0		/* conventional 3-byte format */
740	, MF_SGR1006		/* xterm private mode 1006, SGR-style */
741#ifdef EXP_XTERM_1005
742	, MF_XTERM_1005		/* xterm UTF-8 private mode 1005 */
743#endif
744} MouseFormat;
745
746/*
747 * Structures for scrolling.
748 */
749
750typedef struct {
751	unsigned long hashval;
752	int oldcount, newcount;
753	int oldindex, newindex;
754} HASHMAP;
755
756/*
757 * Structures for soft labels.
758 */
759
760struct _SLK;
761
762#if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
763
764typedef struct
765{
766	char *ent_text;		/* text for the label */
767	char *form_text;	/* formatted text (left/center/...) */
768	int ent_x;		/* x coordinate of this field */
769	char dirty;		/* this label has changed */
770	char visible;		/* field is visible */
771} slk_ent;
772
773typedef struct _SLK {
774	bool    dirty;		/* all labels have changed */
775	bool    hidden;		/* soft labels are hidden */
776	WINDOW  *win;
777	slk_ent *ent;
778	short   maxlab;		/* number of available labels */
779	short   labcnt;		/* number of allocated labels */
780	short   maxlen;		/* length of labels */
781	NCURSES_CH_T attr;	/* soft label attribute */
782} SLK;
783
784#endif	/* USE_TERMLIB */
785
786typedef	struct {
787	WINDOW *win;		/* the window used in the hook      */
788	int	line;		/* lines to take, < 0 => from bottom*/
789	int	(*hook)(WINDOW *, int); /* callback for user	    */
790} ripoff_t;
791
792#if USE_GPM_SUPPORT
793#undef buttons			/* term.h defines this, and gpm uses it! */
794#include <gpm.h>
795#if USE_WEAK_SYMBOLS
796weak_symbol(Gpm_Wgetch);
797#endif
798
799#ifdef HAVE_LIBDL
800/* link dynamically to GPM */
801typedef int *TYPE_gpm_fd;
802typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int);
803typedef int (*TYPE_Gpm_Close) (void);
804typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *);
805
806#define my_gpm_fd       SP_PARM->_mouse_gpm_fd
807#define my_Gpm_Open     SP_PARM->_mouse_Gpm_Open
808#define my_Gpm_Close    SP_PARM->_mouse_Gpm_Close
809#define my_Gpm_GetEvent SP_PARM->_mouse_Gpm_GetEvent
810#else
811/* link statically to GPM */
812#define my_gpm_fd       &gpm_fd
813#define my_Gpm_Open     Gpm_Open
814#define my_Gpm_Close    Gpm_Close
815#define my_Gpm_GetEvent Gpm_GetEvent
816#endif /* HAVE_LIBDL */
817#endif /* USE_GPM_SUPPORT */
818
819typedef struct {
820    long sequence;
821    bool last_used;
822    char *fix_sgr0;		/* this holds the filtered sgr0 string */
823    char *last_bufp;		/* help with fix_sgr0 leak */
824    TERMINAL *last_term;
825} TGETENT_CACHE;
826
827#define TGETENT_MAX 4
828
829/*
830 * When converting from terminfo to termcap, check for cases where we can trim
831 * octal escapes down to 2-character form.  It is useful for terminfo format
832 * also, but not as important.
833 */
834#define MAX_TC_FIXUPS	10
835#define MIN_TC_FIXUPS	4
836
837#define isoctal(c) ((c) >= '0' && (c) <= '7')
838
839/*
840 * State of tparm().
841 */
842#define STACKSIZE 20
843
844typedef struct {
845	union {
846		int	num;
847		char	*str;
848	} data;
849	bool num_type;
850} STACK_FRAME;
851
852#define NUM_VARS 26
853
854typedef struct {
855	const char	*tparam_base;
856
857	STACK_FRAME	stack[STACKSIZE];
858	int		stack_ptr;
859
860	char		*out_buff;
861	size_t		out_size;
862	size_t		out_used;
863
864	char		*fmt_buff;
865	size_t		fmt_size;
866
867	int		dynamic_var[NUM_VARS];
868	int		static_vars[NUM_VARS];
869#ifdef TRACE
870	const char	*tname;
871#endif
872} TPARM_STATE;
873
874typedef struct {
875    char *text;
876    size_t size;
877} TRACEBUF;
878
879/*
880 * The filesystem database normally uses a single-letter for the lower level
881 * of directories.  Use a hexadecimal code for filesystems which do not
882 * preserve mixed-case names.
883 */
884#if MIXEDCASE_FILENAMES
885#define LEAF_FMT "%c"
886#define LEAF_LEN 1
887#else
888#define LEAF_FMT "%02x"
889#define LEAF_LEN 2
890#endif
891
892/*
893 * TRACEMSE_FMT is no longer than 80 columns, there are 5 numbers that
894 * could at most have 10 digits, and the mask contains no more than 32 bits
895 * with each bit representing less than 15 characters.  Usually the whole
896 * string is less than 80 columns, but this buffer size is an absolute
897 * limit.
898 */
899#define TRACEMSE_MAX	(80 + (5 * 10) + (32 * 15))
900#define TRACEMSE_FMT	"id %2d  at (%2d, %2d, %2d) state %4lx = {" /* } */
901
902#ifdef USE_TERM_DRIVER
903struct DriverTCB; /* Terminal Control Block forward declaration */
904#define INIT_TERM_DRIVER()	_nc_globals.term_driver = _nc_get_driver
905#else
906#define INIT_TERM_DRIVER()	/* nothing */
907#endif
908
909typedef struct {
910    const char *name;
911    char *value;
912} ITERATOR_VARS;
913
914/*
915 * Global data which is not specific to a screen.
916 */
917typedef struct {
918	SIG_ATOMIC_T	have_sigtstp;
919	SIG_ATOMIC_T	have_sigwinch;
920	SIG_ATOMIC_T	cleanup_nested;
921
922	bool		init_signals;
923	bool		init_screen;
924
925	char		*comp_sourcename;
926	char		*comp_termtype;
927
928	bool		have_tic_directory;
929	bool		keep_tic_directory;
930	const char	*tic_directory;
931
932	char		*dbi_list;
933	int		dbi_size;
934
935	char		*first_name;
936	char		**keyname_table;
937	int		init_keyname;
938
939	int		slk_format;
940
941	int		getstr_limit;	/* getstr_limit based on POSIX LINE_MAX */
942
943	char		*safeprint_buf;
944	size_t		safeprint_used;
945
946	TGETENT_CACHE	tgetent_cache[TGETENT_MAX];
947	int		tgetent_index;
948	long		tgetent_sequence;
949
950	char		*dbd_blob;	/* string-heap for dbd_list[] */
951	char		**dbd_list;	/* distinct places to look for data */
952	int		dbd_size;	/* length of dbd_list[] */
953	time_t		dbd_time;	/* cache last updated */
954	ITERATOR_VARS	dbd_vars[dbdLAST];
955
956#ifdef USE_TERM_DRIVER
957	int		(*term_driver)(struct DriverTCB*, const char*, int*);
958#endif
959
960#ifndef USE_SP_WINDOWLIST
961	WINDOWLIST	*_nc_windowlist;
962#define WindowList(sp)	_nc_globals._nc_windowlist
963#endif
964
965#if USE_HOME_TERMINFO
966	char		*home_terminfo;
967#endif
968
969#if !USE_SAFE_SPRINTF
970	int		safeprint_cols;
971	int		safeprint_rows;
972#endif
973
974#ifdef USE_PTHREADS
975	pthread_mutex_t	mutex_curses;
976	pthread_mutex_t	mutex_prescreen;
977	pthread_mutex_t	mutex_screen;
978	pthread_mutex_t	mutex_update;
979	pthread_mutex_t	mutex_tst_tracef;
980	pthread_mutex_t	mutex_tracef;
981	int		nested_tracef;
982	int		use_pthreads;
983#define _nc_use_pthreads	_nc_globals.use_pthreads
984#if USE_PTHREADS_EINTR
985	pthread_t	read_thread;		/* The reading thread */
986#endif
987#endif
988#if USE_WIDEC_SUPPORT
989	char		key_name[MB_LEN_MAX + 1];
990#endif
991
992#ifdef TRACE
993	bool		trace_opened;
994	char		trace_fname[PATH_MAX];
995	int		trace_level;
996	FILE		*trace_fp;
997	int		trace_fd;
998
999	char		*tracearg_buf;
1000	size_t		tracearg_used;
1001
1002	TRACEBUF	*tracebuf_ptr;
1003	size_t		tracebuf_used;
1004
1005	char		tracechr_buf[40];
1006
1007	char		*tracedmp_buf;
1008	size_t		tracedmp_used;
1009
1010	unsigned char	*tracetry_buf;
1011	size_t		tracetry_used;
1012
1013	char		traceatr_color_buf[2][80];
1014	int		traceatr_color_sel;
1015	int		traceatr_color_last;
1016#if !defined(USE_PTHREADS) && USE_REENTRANT
1017	int		nested_tracef;
1018#endif
1019#endif	/* TRACE */
1020
1021#if NO_LEAKS
1022	bool		leak_checking;
1023#endif
1024} NCURSES_GLOBALS;
1025
1026extern NCURSES_EXPORT_VAR(NCURSES_GLOBALS) _nc_globals;
1027
1028#define N_RIPS 5
1029
1030/* The limit reserves one byte for a terminating NUL */
1031#define my_getstr_limit	(_nc_globals.getstr_limit - 1)
1032#define _nc_getstr_limit(n) \
1033	(((n) < 0) \
1034	 ? my_getstr_limit \
1035	 : (((n) > my_getstr_limit) \
1036	    ? my_getstr_limit \
1037	    : (n)))
1038
1039#ifdef USE_PTHREADS
1040typedef struct _prescreen_list {
1041	struct _prescreen_list *next;
1042	pthread_t id;
1043	struct screen *sp;
1044} PRESCREEN_LIST;
1045#endif
1046
1047/*
1048 * Global data which can be swept up into a SCREEN when one is created.
1049 * It may be modified before the next SCREEN is created.
1050 */
1051typedef struct {
1052#ifdef USE_PTHREADS
1053	PRESCREEN_LIST *allocated;
1054#else
1055	struct screen * allocated;
1056#endif
1057	bool		use_env;
1058	bool		filter_mode;
1059	attr_t		previous_attr;
1060	TPARM_STATE	tparm_state;
1061	TTY		*saved_tty;	/* savetty/resetty information	    */
1062	bool		use_tioctl;
1063	NCURSES_SP_OUTC	_outch;		/* output handler if not putc */
1064#ifndef USE_SP_RIPOFF
1065	ripoff_t	rippedoff[N_RIPS];
1066	ripoff_t	*rsp;
1067#endif
1068#if NCURSES_NO_PADDING
1069	bool		_no_padding;	/* flag to set if padding disabled  */
1070#endif
1071#if BROKEN_LINKER || USE_REENTRANT
1072	chtype		*real_acs_map;
1073	int		_LINES;
1074	int		_COLS;
1075	int		_TABSIZE;
1076	int		_ESCDELAY;
1077	TERMINAL	*_cur_term;
1078#endif
1079#ifdef TRACE
1080#if BROKEN_LINKER || USE_REENTRANT
1081	long		_outchars;
1082	const char	*_tputs_trace;
1083#endif
1084#endif
1085} NCURSES_PRESCREEN;
1086
1087/*
1088 * Use screen-specific ripoff data (for softkeys) rather than global.
1089 */
1090#ifdef USE_SP_RIPOFF
1091#define safe_ripoff_sp     (sp)->rsp
1092#define safe_ripoff_stack  (sp)->rippedoff
1093#else
1094#define safe_ripoff_sp	   _nc_prescreen.rsp
1095#define safe_ripoff_stack  _nc_prescreen.rippedoff
1096#endif
1097
1098extern NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen;
1099
1100typedef enum {
1101    ewInitial = 0,
1102    ewRunning,
1103    ewSuspend
1104} ENDWIN;
1105
1106/*
1107 * The SCREEN structure.
1108 */
1109
1110struct screen {
1111	int		_ifd;		/* input file descriptor for screen */
1112	int		_ofd;		/* output file descriptor for screen */
1113	FILE		*_ofp;		/* output file ptr for screen	    */
1114	char		*out_buffer;	/* output buffer		    */
1115	size_t		out_limit;	/* output buffer size		    */
1116	size_t		out_inuse;	/* output buffer current use	    */
1117	bool		_filtered;	/* filter() was called		    */
1118	bool		_prescreen;	/* is in prescreen phase	    */
1119	bool		_use_env;	/* LINES & COLS from environment?   */
1120	int		_checkfd;	/* filedesc for typeahead check	    */
1121	TERMINAL	*_term;		/* terminal type information	    */
1122	TTY		_saved_tty;	/* savetty/resetty information	    */
1123	NCURSES_SIZE_T	_lines;		/* screen lines			    */
1124	NCURSES_SIZE_T	_columns;	/* screen columns		    */
1125
1126	NCURSES_SIZE_T	_lines_avail;	/* lines available for stdscr	    */
1127	NCURSES_SIZE_T	_topstolen;	/* lines stolen from top	    */
1128
1129	WINDOW		*_curscr;	/* current screen		    */
1130	WINDOW		*_newscr;	/* virtual screen to be updated to  */
1131	WINDOW		*_stdscr;	/* screen's full-window context	    */
1132
1133#define CurScreen(sp)  (sp)->_curscr
1134#define NewScreen(sp)  (sp)->_newscr
1135#define StdScreen(sp)  (sp)->_stdscr
1136
1137	TRIES		*_keytry;	/* "Try" for use with keypad mode   */
1138	TRIES		*_key_ok;	/* Disabled keys via keyok(,FALSE)  */
1139	bool		_tried;		/* keypad mode was initialized	    */
1140	bool		_keypad_on;	/* keypad mode is currently on	    */
1141
1142	bool		_called_wgetch;	/* check for recursion in wgetch()  */
1143	int		_fifo[FIFO_SIZE];	/* input push-back buffer   */
1144	short		_fifohead,	/* head of fifo queue		    */
1145			_fifotail,	/* tail of fifo queue		    */
1146			_fifopeek,	/* where to peek for next char	    */
1147			_fifohold;	/* set if breakout marked	    */
1148
1149	int		_endwin;	/* are we out of window mode?	    */
1150	NCURSES_CH_T	*_current_attr; /* holds current attributes set	    */
1151	int		_coloron;	/* is color enabled?		    */
1152	int		_color_defs;	/* are colors modified		    */
1153	int		_cursor;	/* visibility of the cursor	    */
1154	int		_cursrow;	/* physical cursor row		    */
1155	int		_curscol;	/* physical cursor column	    */
1156	bool		_notty;		/* true if we cannot switch non-tty */
1157	int		_nl;		/* True if NL -> CR/NL is on	    */
1158	int		_raw;		/* True if in raw mode		    */
1159	int		_cbreak;	/* 1 if in cbreak mode		    */
1160					/* > 1 if in halfdelay mode	    */
1161	int		_echo;		/* True if echo on		    */
1162	int		_use_meta;	/* use the meta key?		    */
1163	struct _SLK	*_slk;		/* ptr to soft key struct / NULL    */
1164	int		slk_format;	/* selected format for this screen  */
1165	/* cursor movement costs; units are 10ths of milliseconds */
1166	int		_char_padding;	/* cost of character put	    */
1167	int		_cr_cost;	/* cost of (carriage_return)	    */
1168	int		_cup_cost;	/* cost of (cursor_address)	    */
1169	int		_home_cost;	/* cost of (cursor_home)	    */
1170	int		_ll_cost;	/* cost of (cursor_to_ll)	    */
1171	int		_cub1_cost;	/* cost of (cursor_left)	    */
1172	int		_cuf1_cost;	/* cost of (cursor_right)	    */
1173	int		_cud1_cost;	/* cost of (cursor_down)	    */
1174	int		_cuu1_cost;	/* cost of (cursor_up)		    */
1175	int		_cub_cost;	/* cost of (parm_cursor_left)	    */
1176	int		_cuf_cost;	/* cost of (parm_cursor_right)	    */
1177	int		_cud_cost;	/* cost of (parm_cursor_down)	    */
1178	int		_cuu_cost;	/* cost of (parm_cursor_up)	    */
1179	int		_hpa_cost;	/* cost of (column_address)	    */
1180	int		_vpa_cost;	/* cost of (row_address)	    */
1181	/* used in tty_update.c, must be chars */
1182	int		_ed_cost;	/* cost of (clr_eos)		    */
1183	int		_el_cost;	/* cost of (clr_eol)		    */
1184	int		_el1_cost;	/* cost of (clr_bol)		    */
1185	int		_dch1_cost;	/* cost of (delete_character)	    */
1186	int		_ich1_cost;	/* cost of (insert_character)	    */
1187	int		_dch_cost;	/* cost of (parm_dch)		    */
1188	int		_ich_cost;	/* cost of (parm_ich)		    */
1189	int		_ech_cost;	/* cost of (erase_chars)	    */
1190	int		_rep_cost;	/* cost of (repeat_char)	    */
1191	int		_hpa_ch_cost;	/* cost of (column_address)	    */
1192	int		_cup_ch_cost;	/* cost of (cursor_address)	    */
1193	int		_cuf_ch_cost;	/* cost of (parm_cursor_right)	    */
1194	int		_inline_cost;	/* cost of inline-move		    */
1195	int		_smir_cost;	/* cost of (enter_insert_mode)	    */
1196	int		_rmir_cost;	/* cost of (exit_insert_mode)	    */
1197	int		_ip_cost;	/* cost of (insert_padding)	    */
1198	/* used in lib_mvcur.c */
1199	char *		_address_cursor;
1200	/* used in tty_update.c */
1201	int		_scrolling;	/* 1 if terminal's smart enough to  */
1202
1203	/* used in lib_color.c */
1204	rgb_bits_t	_direct_color;	/* RGB overrides color-table	     */
1205	color_t		*_color_table;	/* screen's color palette	     */
1206	int		_color_count;	/* count of colors in palette	     */
1207	colorpair_t	*_color_pairs;	/* screen's color pair list	     */
1208	int		_pair_count;	/* same as COLOR_PAIRS               */
1209	int		_pair_limit;	/* actual limit of color-pairs       */
1210	int		_pair_alloc;	/* current table-size of color-pairs */
1211	chtype		_ok_attributes; /* valid attributes for terminal     */
1212	chtype		_xmc_suppress;	/* attributes to suppress if xmc     */
1213	chtype		_xmc_triggers;	/* attributes to process if xmc	     */
1214	chtype *	_acs_map;	/* the real alternate-charset map    */
1215	bool *		_screen_acs_map;
1216
1217
1218	/* used in lib_vidattr.c */
1219	bool		_use_rmso;	/* true if we may use 'rmso'	     */
1220	bool		_use_rmul;	/* true if we may use 'rmul'	     */
1221
1222	/*
1223	 * These data correspond to the state of the idcok() and idlok()
1224	 * functions.  A caveat is in order here:  the XSI and SVr4
1225	 * documentation specify that these functions apply to the window which
1226	 * is given as an argument.  However, ncurses implements this logic
1227	 * only for the newscr/curscr update process, _not_ per-window.
1228	 */
1229	bool		_nc_sp_idlok;
1230	bool		_nc_sp_idcok;
1231
1232	/*
1233	 * These are the data that support the mouse interface.
1234	 */
1235	bool		_mouse_initialized;
1236	MouseType	_mouse_type;
1237	int		_maxclick;
1238	bool		(*_mouse_event) (SCREEN *);
1239	bool		(*_mouse_inline)(SCREEN *);
1240	bool		(*_mouse_parse) (SCREEN *, int);
1241	void		(*_mouse_resume)(SCREEN *);
1242	void		(*_mouse_wrap)	(SCREEN *);
1243	int		_mouse_fd;	/* file-descriptor, if any */
1244	bool		_mouse_active;	/* true if initialized */
1245	mmask_t		_mouse_mask;	/* set via mousemask() */
1246	mmask_t		_mouse_mask2;	/* OR's in press/release bits */
1247	mmask_t		_mouse_bstate;
1248	MouseFormat	_mouse_format;	/* type of xterm mouse protocol */
1249	NCURSES_CONST char *_mouse_xtermcap; /* string to enable/disable mouse */
1250	MEVENT		_mouse_events[EV_MAX];	/* hold the last mouse event seen */
1251	MEVENT		*_mouse_eventp;	/* next free slot in event queue */
1252
1253	/*
1254	 * These are data that support the proper handling of the panel stack on an
1255	 * per screen basis.
1256	 */
1257	struct panelhook _panelHook;
1258
1259	bool		_sig_winch;
1260	SCREEN		*_next_screen;
1261
1262	/* hashes for old and new lines */
1263	unsigned long	*oldhash, *newhash;
1264	HASHMAP		*hashtab;
1265	int		hashtab_len;
1266	int		*_oldnum_list;
1267	int		_oldnum_size;
1268
1269	NCURSES_SP_OUTC	_outch;		/* output handler if not putc */
1270	NCURSES_OUTC	jump;
1271
1272	ripoff_t	rippedoff[N_RIPS];
1273	ripoff_t	*rsp;
1274
1275	int		_legacy_coding;	/* see use_legacy_coding() */
1276
1277#if NCURSES_NO_PADDING
1278	bool		_no_padding;	/* flag to set if padding disabled  */
1279#endif
1280
1281#if USE_HARD_TABS
1282	int		_ht_cost;	/* cost of (tab)		    */
1283	int		_cbt_cost;	/* cost of (backtab)		    */
1284#endif /* USE_HARD_TABS */
1285
1286	/* used in lib_vidattr.c */
1287#if USE_ITALIC
1288	bool		_use_ritm;	/* true if we may use 'ritm'	     */
1289#endif
1290
1291	/* used in getch/twait */
1292#if USE_KLIBC_KBD
1293	bool		_extended_key;	/* true if an extended key	     */
1294#endif
1295
1296	/* used in lib_color.c */
1297#if NCURSES_EXT_FUNCS
1298	bool		_assumed_color; /* use assumed colors		     */
1299	bool		_default_color; /* use default colors		     */
1300	bool		_has_sgr_39_49; /* has ECMA default color support    */
1301	int		_default_fg;	/* assumed default foreground	     */
1302	int		_default_bg;	/* assumed default background	     */
1303	int		_default_pairs;	/* count pairs using default color   */
1304#endif
1305
1306	/* system-dependent mouse data */
1307#if USE_GPM_SUPPORT
1308	bool		_mouse_gpm_loaded;
1309	bool		_mouse_gpm_found;
1310#ifdef HAVE_LIBDL
1311	void		*_dlopen_gpm;
1312	TYPE_gpm_fd	_mouse_gpm_fd;
1313	TYPE_Gpm_Open	_mouse_Gpm_Open;
1314	TYPE_Gpm_Close	_mouse_Gpm_Close;
1315	TYPE_Gpm_GetEvent _mouse_Gpm_GetEvent;
1316#endif
1317	Gpm_Connect	_mouse_gpm_connect;
1318#endif /* USE_GPM_SUPPORT */
1319
1320#if USE_EMX_MOUSE
1321	int		_emxmouse_wfd;
1322	int		_emxmouse_thread;
1323	int		_emxmouse_activated;
1324	char		_emxmouse_buttons[4];
1325#endif
1326
1327#if USE_SYSMOUSE
1328	MEVENT		_sysmouse_fifo[FIFO_SIZE];
1329	int		_sysmouse_head;
1330	int		_sysmouse_tail;
1331	int		_sysmouse_char_width;	/* character width */
1332	int		_sysmouse_char_height;	/* character height */
1333	int		_sysmouse_old_buttons;
1334	int		_sysmouse_new_buttons;
1335#endif
1336
1337#ifdef USE_TERM_DRIVER
1338	MEVENT		_drv_mouse_fifo[FIFO_SIZE];
1339	int		_drv_mouse_head;
1340	int		_drv_mouse_tail;
1341	int		_drv_mouse_old_buttons;
1342	int		_drv_mouse_new_buttons;
1343#endif
1344	/*
1345	 * This supports automatic resizing
1346	 */
1347#if USE_SIZECHANGE
1348	int		(*_resize)(NCURSES_SP_DCLx int y, int x);
1349	int		(*_ungetch)(SCREEN *, int);
1350#endif
1351
1352#ifdef USE_SP_WINDOWLIST
1353	WINDOWLIST*	_windowlist;
1354#define WindowList(sp)  (sp)->_windowlist
1355#endif
1356
1357#if USE_REENTRANT
1358	char		_ttytype[NAMESIZE];
1359	int		_ESCDELAY;
1360	int		_TABSIZE;
1361	int		_LINES;
1362	int		_COLS;
1363#endif
1364
1365#if NCURSES_SP_FUNCS
1366	bool		use_tioctl;
1367#endif
1368
1369	/*
1370	 * ncurses/ncursesw are the same up to this point.
1371	 */
1372#if USE_WIDEC_SUPPORT
1373	/* recent versions of 'screen' have partially-working support for
1374	 * UTF-8, but do not permit ACS at the same time (see tty_update.c).
1375	 */
1376	bool		_screen_acs_fix;
1377	bool		_screen_unicode;
1378#endif
1379
1380#if NCURSES_EXT_FUNCS && NCURSES_EXT_COLORS
1381	void		*_ordered_pairs; /* index used by alloc_pair()	     */
1382	int		_pairs_used;	/* actual number of color-pairs used */
1383	int		_recent_pair;	/* number for most recent free-pair  */
1384#endif
1385
1386#ifdef TRACE
1387	char		tracechr_buf[40];
1388	char		tracemse_buf[TRACEMSE_MAX];
1389#if USE_REENTRANT
1390	long		_outchars;
1391	const char	*_tputs_trace;
1392#endif
1393#endif
1394};
1395
1396extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain;
1397extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
1398
1399	WINDOWLIST {
1400	WINDOWLIST *next;
1401	SCREEN *screen;		/* screen containing the window */
1402	WINDOW	win;		/* WINDOW_EXT() needs to account for offset */
1403#if NCURSES_WIDECHAR
1404	char addch_work[(MB_LEN_MAX * 9) + 1];
1405	unsigned addch_used;	/* number of bytes in addch_work[] */
1406	int addch_x;		/* x-position for addch_work[] */
1407	int addch_y;		/* y-position for addch_work[] */
1408#endif
1409};
1410
1411#define WINDOW_EXT(w,m) (((WINDOWLIST *)((void *)((char *)(w) - offsetof(WINDOWLIST, win))))->m)
1412
1413#ifdef USE_SP_WINDOWLIST
1414#define SP_INIT_WINDOWLIST(sp)	WindowList(sp) = 0
1415#else
1416#define SP_INIT_WINDOWLIST(sp)	/* nothing */
1417#endif
1418
1419#define SP_PRE_INIT(sp)                         \
1420    sp->_cursrow = -1;                          \
1421    sp->_curscol = -1;                          \
1422    sp->_nl = TRUE;                             \
1423    sp->_raw = FALSE;                           \
1424    sp->_cbreak = 0;                            \
1425    sp->_echo = TRUE;                           \
1426    sp->_fifohead = -1;                         \
1427    sp->_endwin = ewSuspend;                    \
1428    sp->_cursor = -1;                           \
1429    SP_INIT_WINDOWLIST(sp);                     \
1430    sp->_outch = NCURSES_OUTC_FUNC;             \
1431    sp->jump = 0                                \
1432
1433/* usually in <limits.h> */
1434#ifndef UCHAR_MAX
1435#define UCHAR_MAX 255
1436#endif
1437
1438/* The terminfo source is assumed to be 7-bit ASCII */
1439#define is7bits(c)	((unsigned)(c) < 128)
1440
1441/* Checks for isprint() should be done on 8-bit characters (non-wide) */
1442#define is8bits(c)	((unsigned)(c) <= UCHAR_MAX)
1443
1444#ifndef min
1445#define min(a,b)	((a) > (b)  ?  (b)  :  (a))
1446#endif
1447
1448#ifndef max
1449#define max(a,b)	((a) < (b)  ?  (b)  :  (a))
1450#endif
1451
1452/* usually in <unistd.h> */
1453#ifndef STDIN_FILENO
1454#define STDIN_FILENO 0
1455#endif
1456
1457#ifndef STDOUT_FILENO
1458#define STDOUT_FILENO 1
1459#endif
1460
1461#ifndef STDERR_FILENO
1462#define STDERR_FILENO 2
1463#endif
1464
1465#ifndef EXIT_SUCCESS
1466#define EXIT_SUCCESS 0
1467#endif
1468
1469#ifndef EXIT_FAILURE
1470#define EXIT_FAILURE 1
1471#endif
1472
1473#ifndef R_OK
1474#define	R_OK	4		/* Test for read permission.  */
1475#endif
1476#ifndef W_OK
1477#define	W_OK	2		/* Test for write permission.  */
1478#endif
1479#ifndef X_OK
1480#define	X_OK	1		/* Test for execute permission.  */
1481#endif
1482#ifndef F_OK
1483#define	F_OK	0		/* Test for existence.  */
1484#endif
1485
1486#if HAVE_FCNTL_H
1487#include <fcntl.h>		/* may define O_BINARY	*/
1488#endif
1489
1490#ifndef O_BINARY
1491#define O_BINARY 0
1492#endif
1493
1494#ifdef TRACE
1495#if USE_REENTRANT
1496#define COUNT_OUTCHARS(n) _nc_count_outchars(n);
1497#else
1498#define COUNT_OUTCHARS(n) _nc_outchars += (n);
1499#endif
1500#else
1501#define COUNT_OUTCHARS(n) /* nothing */
1502#endif
1503
1504#define RESET_OUTCHARS() COUNT_OUTCHARS(-_nc_outchars)
1505
1506#define UChar(c)	((unsigned char)(c))
1507#define UShort(c)	((unsigned short)(c))
1508#define ChCharOf(c)	((chtype)(c) & (chtype)A_CHARTEXT)
1509#define ChAttrOf(c)	((chtype)(c) & (chtype)A_ATTRIBUTES)
1510
1511#define TR_PUTC(c)	TR(TRACE_CHARPUT, ("PUTC %#x", UChar(c)))
1512
1513#ifndef MB_LEN_MAX
1514#define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */
1515#endif
1516
1517#if USE_WIDEC_SUPPORT /* { */
1518#define isEILSEQ(status) (((size_t)status == (size_t)-1) && (errno == EILSEQ))
1519
1520#define init_mb(state)	memset(&state, 0, sizeof(state))
1521
1522#if NCURSES_EXT_COLORS
1523#define NulColor	, 0
1524#else
1525#define NulColor	/* nothing */
1526#endif
1527
1528#define NulChar		0,0,0,0	/* FIXME: see CCHARW_MAX */
1529#define CharOf(c)	((c).chars[0])
1530#define AttrOf(c)	((c).attr)
1531
1532#define AddAttr(c,a)	AttrOf(c) |=  ((a) & A_ATTRIBUTES)
1533#define RemAttr(c,a)	AttrOf(c) &= ~((a) & A_ATTRIBUTES)
1534#define SetAttr(c,a)	AttrOf(c) =   ((a) & A_ATTRIBUTES) | WidecExt(c)
1535
1536#define NewChar2(c,a)	{ a, { c, NulChar } NulColor }
1537#define NewChar(ch)	NewChar2(ChCharOf(ch), ChAttrOf(ch))
1538
1539#if CCHARW_MAX == 5
1540#define CharEq(a,b)	(((a).attr == (b).attr) \
1541		       && (a).chars[0] == (b).chars[0] \
1542		       && (a).chars[1] == (b).chars[1] \
1543		       && (a).chars[2] == (b).chars[2] \
1544		       && (a).chars[3] == (b).chars[3] \
1545		       && (a).chars[4] == (b).chars[4] \
1546			if_EXT_COLORS(&& (a).ext_color == (b).ext_color))
1547#elif CCHARW_MAX > 0
1548#error Inconsistent values for CCHARW_MAX
1549#else
1550#define CharEq(a,b)	(!memcmp(&(a), &(b), sizeof(a)))
1551#endif
1552
1553#define SetChar(ch,c,a) do {							    \
1554			    NCURSES_CH_T *_cp = &ch;				    \
1555			    memset(_cp, 0, sizeof(ch));				    \
1556			    _cp->chars[0] = (wchar_t) (c);			    \
1557			    _cp->attr = (a);					    \
1558			    if_EXT_COLORS(SetPair(ch, PairNumber(a)));		    \
1559			} while (0)
1560#define CHREF(wch)	(&wch)
1561#define CHDEREF(wch)	(*wch)
1562#define ARG_CH_T	NCURSES_CH_T *
1563#define CARG_CH_T	const NCURSES_CH_T *
1564#define PUTC_DATA	char PUTC_buf[MB_LEN_MAX]; int PUTC_i, PUTC_n; \
1565			mbstate_t PUT_st; wchar_t PUTC_ch
1566#define PUTC_INIT	init_mb (PUT_st)
1567#define PUTC(ch)	do { if(!isWidecExt(ch)) {				    \
1568			if (Charable(ch)) {					    \
1569			    TR_PUTC(CharOf(ch));				    \
1570			    NCURSES_OUTC_FUNC (NCURSES_SP_ARGx CharOf(ch));	    \
1571			    COUNT_OUTCHARS(1);					    \
1572			} else {						    \
1573			    for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {	    \
1574				PUTC_ch = (ch).chars[PUTC_i];			    \
1575				if (PUTC_ch == L'\0')				    \
1576				    break;					    \
1577				PUTC_INIT;					    \
1578				PUTC_n = (int) wcrtomb(PUTC_buf,		    \
1579						       (ch).chars[PUTC_i], &PUT_st); \
1580				if (PUTC_n <= 0) {				    \
1581				    if (PUTC_ch && is8bits(PUTC_ch) && PUTC_i == 0) { \
1582					TR_PUTC(CharOf(ch));			    \
1583					NCURSES_OUTC_FUNC (NCURSES_SP_ARGx CharOf(ch)); \
1584				    }						    \
1585				    break;					    \
1586				} else {					    \
1587				    int PUTC_j;					    \
1588				    for (PUTC_j = 0; PUTC_j < PUTC_n; ++PUTC_j) {   \
1589					TR_PUTC(PUTC_buf[PUTC_j]);		    \
1590					NCURSES_OUTC_FUNC (NCURSES_SP_ARGx PUTC_buf[PUTC_j]); \
1591				    }						    \
1592				}						    \
1593			    }							    \
1594			    COUNT_OUTCHARS(PUTC_i);				    \
1595			} } } while (0)
1596
1597#define BLANK		NewChar2(' ', WA_NORMAL)
1598#define ZEROS		NewChar2('\0', WA_NORMAL)
1599#define ISBLANK(ch)	((ch).chars[0] == L' ' && (ch).chars[1] == L'\0')
1600
1601	/*
1602	 * Wide characters cannot be represented in the A_CHARTEXT mask of
1603	 * attr_t's but an application might have set a narrow character there.
1604	 * But even in that case, it would only be a printable character, or
1605	 * zero.  Otherwise we can use those bits to tell if a cell is the
1606	 * first or extension part of a wide character.
1607	 */
1608#define WidecExt(ch)	(int) (AttrOf(ch) & A_CHARTEXT)
1609#define isWidecBase(ch)	(WidecExt(ch) == 1)
1610#define isWidecExt(ch)	(WidecExt(ch) > 1 && WidecExt(ch) < 32)
1611#define SetWidecExt(dst, ext)	AttrOf(dst) &= ~A_CHARTEXT,		\
1612				AttrOf(dst) |= (attr_t) (ext + 1)
1613
1614#define if_WIDEC(code)  code
1615#define Charable(ch)	(((SP_PARM->_legacy_coding)			\
1616			 || (AttrOf(ch) & A_ALTCHARSET)			\
1617			 || (!isWidecExt(ch))) &&			\
1618			     (ch).chars[1] == L'\0' &&			\
1619			     _nc_is_charable(CharOf(ch)))
1620
1621#define L(ch)		L ## ch
1622#else /* }{ */
1623#define CharOf(c)	ChCharOf(c)
1624#define AttrOf(c)	ChAttrOf(c)
1625#define AddAttr(c,a)	c |= (a)
1626#define RemAttr(c,a)	c &= ~((a) & A_ATTRIBUTES)
1627#define SetAttr(c,a)	c = ((c) & ~A_ATTRIBUTES) | (a)
1628#define NewChar(ch)	(ch)
1629#define NewChar2(c,a)	((c) | (a))
1630#define CharEq(a,b)	((a) == (b))
1631#define SetChar(ch,c,a)	ch = (c) | (a)
1632#define CHREF(wch)	wch
1633#define CHDEREF(wch)	wch
1634#define ARG_CH_T	NCURSES_CH_T
1635#define CARG_CH_T	NCURSES_CH_T
1636#define PUTC_DATA	/* nothing */
1637#define PUTC(ch)	{ \
1638			    TR_PUTC(ch); \
1639			    NCURSES_OUTC_FUNC (NCURSES_SP_ARGx (int) ch); \
1640			}
1641
1642#define BLANK		(' '|A_NORMAL)
1643#define ZEROS		('\0'|A_NORMAL)
1644#define ISBLANK(ch)	(CharOf(ch) == ' ')
1645
1646#define isWidecExt(ch)	(0)
1647#define if_WIDEC(code) /* nothing */
1648
1649#define Charable(ch)	((ch) >= ' ' && (ch) <= '~')
1650#define L(ch)		ch
1651#endif /* } */
1652
1653#define AttrOfD(ch)	AttrOf(CHDEREF(ch))
1654#define CharOfD(ch)	CharOf(CHDEREF(ch))
1655#define SetChar2(wch,ch)    SetChar(wch,ChCharOf(ch),ChAttrOf(ch))
1656
1657#define BLANK_ATTR	A_NORMAL
1658#define BLANK_TEXT	L(' ')
1659
1660#define CHANGED     -1
1661
1662#define LEGALYX(w, y, x) \
1663	      ((w) != 0 && \
1664		((x) >= 0 && (x) <= (w)->_maxx && \
1665		 (y) >= 0 && (y) <= (w)->_maxy))
1666
1667#define CHANGED_CELL(line,col) \
1668	if (line->firstchar == _NOCHANGE) \
1669		line->firstchar = line->lastchar = (NCURSES_SIZE_T) (col); \
1670	else if ((col) < line->firstchar) \
1671		line->firstchar = (NCURSES_SIZE_T) (col); \
1672	else if ((col) > line->lastchar) \
1673		line->lastchar = (NCURSES_SIZE_T) (col)
1674
1675#define CHANGED_RANGE(line,start,end) \
1676	if (line->firstchar == _NOCHANGE \
1677	 || line->firstchar > (start)) \
1678		line->firstchar = (NCURSES_SIZE_T) (start); \
1679	if (line->lastchar == _NOCHANGE \
1680	 || line->lastchar < (end)) \
1681		line->lastchar = (NCURSES_SIZE_T) (end)
1682
1683#define CHANGED_TO_EOL(line,start,end) \
1684	if (line->firstchar == _NOCHANGE \
1685	 || line->firstchar > (start)) \
1686		line->firstchar = (NCURSES_SIZE_T) (start); \
1687	line->lastchar = (NCURSES_SIZE_T) (end)
1688
1689#define SIZEOF(v) (sizeof(v)/sizeof(v[0]))
1690
1691#define FreeIfNeeded(p)  if ((p) != 0) free(p)
1692
1693/* FreeAndNull() is not a comma-separated expression because some compilers
1694 * do not accept a mixture of void with values.
1695 */
1696#define FreeAndNull(p)   do { free(p); p = 0; } while (0)
1697
1698#include <nc_alloc.h>
1699
1700/*
1701 * Use these for tic/infocmp malloc failures.  Generally the ncurses library
1702 * tries to limp along after a failure.
1703 */
1704#define TYPE_MALLOC(type, size, name) \
1705	do { \
1706	    name = typeMalloc(type, size); \
1707	    if (name == 0) \
1708		_nc_err_abort(MSG_NO_MEMORY); \
1709	} while (0)
1710
1711#define TYPE_REALLOC(type, size, name) \
1712	do { \
1713	    name = typeRealloc(type, size, name); \
1714	    if (name == 0) \
1715		_nc_err_abort(MSG_NO_MEMORY); \
1716	} while (0)
1717
1718/*
1719 * TTY bit definition for converting tabs to spaces.
1720 */
1721#ifdef TAB3
1722# define OFLAGS_TABS TAB3	/* POSIX specifies TAB3 */
1723#else
1724# ifdef XTABS
1725#  define OFLAGS_TABS XTABS	/* XTABS is usually the "same" */
1726# else
1727#  ifdef OXTABS
1728#   define OFLAGS_TABS OXTABS	/* the traditional BSD equivalent */
1729#  else
1730#   define OFLAGS_TABS 0
1731#  endif
1732# endif
1733#endif
1734
1735#ifdef __TANDEM
1736#define ROOT_UID 65535
1737#endif
1738
1739#ifndef ROOT_UID
1740#define ROOT_UID 0
1741#endif
1742
1743/*
1744 * Standardize/simplify common loops
1745 */
1746#define each_screen(p) p = _nc_screen_chain; p != 0; p = (p)->_next_screen
1747#define each_window(sp,p) p = WindowList(sp); p != 0; p = (p)->next
1748#define each_ripoff(p) p = safe_ripoff_stack; (p - safe_ripoff_stack) < N_RIPS; ++p
1749
1750/*
1751 * Prefixes for call/return points of library function traces.  We use these to
1752 * instrument the public functions so that the traces can be easily transformed
1753 * into regression scripts.
1754 */
1755#define T_CALLED(fmt) "called {" fmt
1756#define T_CREATE(fmt) "create :" fmt
1757#define T_RETURN(fmt) "return }" fmt
1758
1759#define NonNull(s)              ((s) != 0 ? s : "<null>")
1760#define NonEmpty(s)             ((s) != 0 && *(s) != '\0')
1761
1762#ifdef TRACE
1763
1764#if USE_REENTRANT
1765#define TPUTS_TRACE(s)	_nc_set_tputs_trace(s);
1766#else
1767#define TPUTS_TRACE(s)	_nc_tputs_trace = s;
1768#endif
1769
1770#ifdef HAVE_CONSISTENT_GETENV
1771#define START_TRACE() \
1772	if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \
1773	    int t = _nc_getenv_num("NCURSES_TRACE"); \
1774	    if (t >= 0) \
1775		curses_trace((unsigned) t); \
1776	}
1777#else
1778#define START_TRACE() /* nothing */
1779#endif
1780
1781/*
1782 * Many of the _tracef() calls use static buffers; lock the trace state before
1783 * trying to fill them.
1784 */
1785#if USE_REENTRANT
1786#define USE_TRACEF(mask) _nc_use_tracef(mask)
1787extern NCURSES_EXPORT(int)	_nc_use_tracef (unsigned);
1788extern NCURSES_EXPORT(void)	_nc_locked_tracef (const char *, ...) GCC_PRINTFLIKE(1,2);
1789#else
1790#define USE_TRACEF(mask) (_nc_tracing & (mask))
1791#define _nc_locked_tracef _tracef
1792#endif
1793
1794#define TR(n, a)	if (USE_TRACEF(n)) _nc_locked_tracef a
1795#define T(a)		TR(TRACE_CALLS, a)
1796#define TRACE_RETURN(value,type)     return _nc_retrace_##type((type)(value))
1797#define TRACE_RETURN1(value,dst)     return _nc_retrace_##dst(value)
1798#define TRACE_RETURN2(value,dst,src) return _nc_retrace_##dst##_##src(value)
1799#define TRACE_RETURN_SP(value,type)  return _nc_retrace_##type(SP_PARM, value)
1800
1801typedef void VoidFunc(void);
1802
1803#define TR_FUNC_LEN		((sizeof(void *) + sizeof(void (*)(void))) * 2 + 4)
1804#define TR_FUNC_BFR(max)	char tr_func_data[max][TR_FUNC_LEN]
1805#define TR_FUNC_ARG(num,func)	_nc_fmt_funcptr(&tr_func_data[num][0], (const char *)&(func), sizeof((func)))
1806
1807#define returnAttr(code)	TRACE_RETURN(code,attr_t)
1808#define returnBits(code)	TRACE_RETURN(code,unsigned)
1809#define returnBool(code)	TRACE_RETURN(code,bool)
1810#define returnCPtr(code)	TRACE_RETURN1(code,cptr)
1811#define returnCVoidPtr(code)	TRACE_RETURN1(code,cvoid_ptr)
1812#define returnChar(code)	TRACE_RETURN(code,char)
1813#define returnChtype(code)	TRACE_RETURN(code,chtype)
1814#define returnCode(code)	TRACE_RETURN(code,int)
1815#define returnIntAttr(code)	TRACE_RETURN2(code,int,attr_t)
1816#define returnMMask(code)	TRACE_RETURN_SP(code,mmask_t)
1817#define returnPtr(code)		TRACE_RETURN1(code,ptr)
1818#define returnSP(code)		TRACE_RETURN1(code,sp)
1819#define returnVoid		T((T_RETURN(""))); return
1820#define returnVoidPtr(code)	TRACE_RETURN1(code,void_ptr)
1821#define returnWin(code)		TRACE_RETURN1(code,win)
1822
1823#define returnDB(rc)		do { TR(TRACE_DATABASE,(T_RETURN("code %d"), (rc))); return (rc); } while (0)
1824
1825extern NCURSES_EXPORT(NCURSES_BOOL)     _nc_retrace_bool (int);
1826extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *);
1827extern NCURSES_EXPORT(SCREEN *)         _nc_retrace_sp (SCREEN *);
1828extern NCURSES_EXPORT(WINDOW *)         _nc_retrace_win (WINDOW *);
1829extern NCURSES_EXPORT(attr_t)           _nc_retrace_attr_t (attr_t);
1830extern NCURSES_EXPORT(char *)           _nc_retrace_ptr (char *);
1831extern NCURSES_EXPORT(char *)           _nc_trace_ttymode(TTY *tty);
1832extern NCURSES_EXPORT(char *)           _nc_varargs (const char *, va_list);
1833extern NCURSES_EXPORT(chtype)           _nc_retrace_chtype (chtype);
1834extern NCURSES_EXPORT(const char *)     _nc_altcharset_name(attr_t, chtype);
1835extern NCURSES_EXPORT(const char *)     _nc_retrace_cptr (const char *);
1836extern NCURSES_EXPORT(char)             _nc_retrace_char (int);
1837extern NCURSES_EXPORT(int)              _nc_retrace_int (int);
1838extern NCURSES_EXPORT(int)              _nc_retrace_int_attr_t (attr_t);
1839extern NCURSES_EXPORT(mmask_t)          _nc_retrace_mmask_t (SCREEN *, mmask_t);
1840extern NCURSES_EXPORT(unsigned)         _nc_retrace_unsigned (unsigned);
1841extern NCURSES_EXPORT(void *)           _nc_retrace_void_ptr (void *);
1842extern NCURSES_EXPORT(void)             _nc_fifo_dump (SCREEN *);
1843
1844extern NCURSES_EXPORT(char *)           _nc_fmt_funcptr(char *, const char *, size_t);
1845
1846#if USE_REENTRANT
1847NCURSES_WRAPPED_VAR(long, _nc_outchars);
1848NCURSES_WRAPPED_VAR(const char *, _nc_tputs_trace);
1849#define _nc_outchars       NCURSES_PUBLIC_VAR(_nc_outchars())
1850#define _nc_tputs_trace    NCURSES_PUBLIC_VAR(_nc_tputs_trace())
1851extern NCURSES_EXPORT(void)		_nc_set_tputs_trace (const char *);
1852extern NCURSES_EXPORT(void)		_nc_count_outchars (long);
1853#else
1854extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace;
1855extern NCURSES_EXPORT_VAR(long)         _nc_outchars;
1856#endif
1857
1858extern NCURSES_EXPORT_VAR(unsigned)     _nc_tracing;
1859
1860extern NCURSES_EXPORT(char *) _nc_tracebits (void);
1861extern NCURSES_EXPORT(char *) _tracemouse (const MEVENT *);
1862extern NCURSES_EXPORT(void) _tracedump (const char *, WINDOW *);
1863
1864#if USE_WIDEC_SUPPORT
1865extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *);
1866extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int);
1867#endif
1868
1869extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int);
1870extern NCURSES_EXPORT(const char *) _nc_viscbuf (const NCURSES_CH_T *, int);
1871
1872#else /* !TRACE */
1873
1874#define START_TRACE() /* nothing */
1875
1876#define T(a)
1877#define TR(n, a)
1878#define TPUTS_TRACE(s)
1879#define TR_FUNC_BFR(max)
1880
1881#define returnAttr(code)	return code
1882#define returnBits(code)	return code
1883#define returnBool(code)	return code
1884#define returnCPtr(code)	return code
1885#define returnCVoidPtr(code)	return code
1886#define returnChar(code)	return ((char) code)
1887#define returnChtype(code)	return code
1888#define returnCode(code)	return code
1889#define returnIntAttr(code)	return code
1890#define returnMMask(code)	return code
1891#define returnPtr(code)		return code
1892#define returnSP(code)		return code
1893#define returnVoid		return
1894#define returnVoidPtr(code)	return code
1895#define returnWin(code)		return code
1896
1897#define returnDB(code)		return code
1898
1899#endif /* TRACE/!TRACE */
1900
1901/*
1902 * Workaround for defective implementation of gcc attribute warn_unused_result
1903 */
1904#if defined(__GNUC__) && defined(_FORTIFY_SOURCE)
1905#define IGNORE_RC(func) errno = (int) func
1906#else
1907#define IGNORE_RC(func) (void) func
1908#endif /* gcc workarounds */
1909
1910/*
1911 * Return-codes for tgetent() and friends.
1912 */
1913#define TGETENT_YES  1		/* entry is found */
1914#define TGETENT_NO   0		/* entry is not found */
1915#define TGETENT_ERR -1		/* an error occurred */
1916
1917extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *);
1918extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int);
1919
1920#define EMPTY_MODULE(name) \
1921extern	NCURSES_EXPORT(void) name (void); \
1922	NCURSES_EXPORT(void) name (void) { }
1923
1924#define ALL_BUT_COLOR ((chtype)~(A_COLOR))
1925#define NONBLANK_ATTR (A_BOLD | A_DIM | A_BLINK | A_ITALIC)
1926#define TPARM_ATTR    (A_STANDOUT | A_UNDERLINE | A_REVERSE | A_BLINK | A_DIM | A_BOLD | A_ALTCHARSET | A_INVIS | A_PROTECT)
1927#define XMC_CONFLICT  (A_STANDOUT | A_UNDERLINE | A_REVERSE | A_BLINK | A_DIM | A_BOLD | A_INVIS | A_PROTECT | A_ITALIC)
1928#define XMC_CHANGES(c) ((c) & SP_PARM->_xmc_suppress)
1929
1930#define toggle_attr_on(S,at) {\
1931   if (PairNumber(at) > 0) {\
1932      (S) = ((S) & ALL_BUT_COLOR) | (attr_t) (at);\
1933   } else {\
1934      (S) |= (attr_t) (at);\
1935   }\
1936   TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1937
1938
1939#define toggle_attr_off(S,at) {\
1940   if (PairNumber(at) > 0) {\
1941      (S) &= ~(at|A_COLOR);\
1942   } else {\
1943      (S) &= ~(at);\
1944   }\
1945   TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1946
1947#define DelCharCost(sp,count) \
1948		((parm_dch != 0) \
1949		? sp->_dch_cost \
1950		: ((delete_character != 0) \
1951			? (sp->_dch1_cost * count) \
1952			: INFINITY))
1953
1954#define InsCharCost(sp,count) \
1955		((parm_ich != 0) \
1956		? sp->_ich_cost \
1957		: ((enter_insert_mode && exit_insert_mode) \
1958		  ? sp->_smir_cost + sp->_rmir_cost + (sp->_ip_cost * count) \
1959		  : ((insert_character != 0) \
1960		    ? ((sp->_ich1_cost + sp->_ip_cost) * count) \
1961		    : INFINITY)))
1962
1963#if USE_XMC_SUPPORT
1964#define UpdateAttrs(sp,c) if (!SameAttrOf(SCREEN_ATTRS(sp), c)) { \
1965				attr_t chg = AttrOf(SCREEN_ATTRS(sp)); \
1966				VIDPUTS(sp, AttrOf(c), GetPair(c)); \
1967				if (magic_cookie_glitch > 0 \
1968				 && XMC_CHANGES((chg ^ AttrOf(SCREEN_ATTRS(sp))))) { \
1969					T(("%s @%d before glitch %d,%d", \
1970						__FILE__, __LINE__, \
1971						sp->_cursrow, \
1972						sp->_curscol)); \
1973					NCURSES_SP_NAME(_nc_do_xmc_glitch)(NCURSES_SP_ARGx chg); \
1974				} \
1975			}
1976#else
1977#define UpdateAttrs(sp,c) if (!SameAttrOf(SCREEN_ATTRS(sp), c)) { \
1978				    VIDPUTS(sp, AttrOf(c), GetPair(c)); \
1979			}
1980#endif
1981
1982/*
1983 * Macros to make additional parameter to implement wgetch_events()
1984 */
1985#ifdef NCURSES_WGETCH_EVENTS
1986#define EVENTLIST_0th(param) param
1987#define EVENTLIST_1st(param) param
1988#define EVENTLIST_2nd(param) , param
1989#define TWAIT_MASK (TW_ANY | TW_EVENT)
1990#else
1991#define EVENTLIST_0th(param) void
1992#define EVENTLIST_1st(param) /* nothing */
1993#define EVENTLIST_2nd(param) /* nothing */
1994#define TWAIT_MASK TW_ANY
1995#endif
1996
1997#if NCURSES_EXPANDED && NCURSES_EXT_FUNCS
1998
1999#undef  toggle_attr_on
2000#define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at)
2001extern NCURSES_EXPORT(void) _nc_toggle_attr_on (attr_t *, attr_t);
2002
2003#undef  toggle_attr_off
2004#define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at)
2005extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t);
2006
2007#undef  DelCharCost
2008#define DelCharCost(sp, count) NCURSES_SP_NAME(_nc_DelCharCost)(NCURSES_SP_ARGx count)
2009
2010#undef  InsCharCost
2011#define InsCharCost(sp, count) NCURSES_SP_NAME(_nc_InsCharCost)(NCURSES_SP_ARGx count)
2012
2013extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_DelCharCost) (NCURSES_SP_DCLx int _c);
2014extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_InsCharCost) (NCURSES_SP_DCLx int _c);
2015
2016#undef  UpdateAttrs
2017#define UpdateAttrs(sp,c) NCURSES_SP_NAME(_nc_UpdateAttrs)(NCURSES_SP_ARGx CHREF(c))
2018
2019#if USE_WIDEC_SUPPORT || defined(NEED_NCURSES_CH_T)
2020extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx CARG_CH_T _c);
2021#else
2022extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx chtype c);
2023#endif
2024
2025#if NCURSES_SP_FUNCS
2026extern NCURSES_EXPORT(int) _nc_DelCharCost (int);
2027extern NCURSES_EXPORT(int) _nc_InsCharCost (int);
2028extern NCURSES_EXPORT(void) _nc_UpdateAttrs (CARG_CH_T);
2029#endif /* NCURSES_SP_FUNCS */
2030
2031#else
2032
2033extern NCURSES_EXPORT(void) _nc_expanded (void);
2034
2035#endif
2036
2037#if !NCURSES_EXT_FUNCS
2038#define set_escdelay(value) ESCDELAY = value
2039#endif
2040
2041#if !HAVE_GETCWD
2042#define getcwd(buf,len) getwd(buf)
2043#endif
2044
2045#define save_ttytype(termp) \
2046	if (TerminalType(termp).term_names != 0) { \
2047	    _nc_STRNCPY(ttytype, \
2048	    		TerminalType(termp).term_names, \
2049			NAMESIZE - 1); \
2050	    ttytype[NAMESIZE - 1] = '\0'; \
2051	}
2052
2053#if !NCURSES_WCWIDTH_GRAPHICS
2054extern NCURSES_EXPORT(int) _nc_wacs_width(unsigned);
2055#else
2056#define _nc_wacs_width(ch) wcwidth(ch)
2057#endif
2058
2059/* charable.c */
2060#if USE_WIDEC_SUPPORT
2061extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t);
2062extern NCURSES_EXPORT(int) _nc_to_char(wint_t);
2063extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int);
2064#endif
2065
2066/* comp_captab.c */
2067typedef struct {
2068	short	nte_name;	/* offset of name to hash on */
2069	int	nte_type;	/* BOOLEAN, NUMBER or STRING */
2070	short	nte_index;	/* index of associated variable in its array */
2071	short	nte_link;	/* index in table of next hash, or -1 */
2072} name_table_data;
2073
2074typedef struct
2075{
2076	short	from;
2077	short	to;
2078	short	source;
2079} alias_table_data;
2080
2081/* comp_userdefs.c */
2082typedef struct {
2083	short	ute_name;	/* offset of name to hash on */
2084	unsigned ute_type;	/* mask (BOOLEAN, NUMBER, STRING) */
2085	unsigned ute_argc;	/* number of parameters */
2086	unsigned ute_args;	/* bit-mask for string parameters */
2087	short	ute_index;	/* index of associated variable in its array */
2088	short	ute_link;	/* index in table of next hash, or -1 */
2089} user_table_data;
2090
2091/* doupdate.c */
2092#if USE_XMC_SUPPORT
2093extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t);
2094#endif
2095
2096/* hardscroll.c */
2097#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
2098extern NCURSES_EXPORT(void) _nc_linedump (void);
2099#endif
2100
2101/* lib_acs.c */
2102extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */
2103extern NCURSES_EXPORT(int)  _nc_msec_cost (const char *const, int);  /* used by 'tack' program */
2104
2105/* lib_addch.c */
2106#if USE_WIDEC_SUPPORT
2107NCURSES_EXPORT(int) _nc_build_wch(WINDOW *win, ARG_CH_T ch);
2108#endif
2109
2110/* lib_addstr.c */
2111#if USE_WIDEC_SUPPORT && !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2112extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *);
2113#endif
2114
2115/* lib_color.c */
2116extern NCURSES_EXPORT(int) _nc_init_color(SCREEN *, int, int, int, int);
2117extern NCURSES_EXPORT(int) _nc_init_pair(SCREEN *, int, int, int);
2118extern NCURSES_EXPORT(int) _nc_pair_content(SCREEN *, int, int *, int *);
2119extern NCURSES_EXPORT(bool) _nc_reset_colors(void);
2120extern NCURSES_EXPORT(void) _nc_reserve_pairs(SCREEN *, int);
2121extern NCURSES_EXPORT(void) _nc_change_pair(SCREEN *, int);
2122
2123#define ReservePairs(sp,want) \
2124	    if ((sp->_color_pairs == 0) || (want >= sp->_pair_alloc)) \
2125		_nc_reserve_pairs(sp, want)
2126
2127/* lib_getch.c */
2128extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, int *, int EVENTLIST_2nd(_nc_eventlist *));
2129
2130/* lib_insch.c */
2131extern NCURSES_EXPORT(int) _nc_insert_ch(SCREEN *, WINDOW *, chtype);
2132
2133/* lib_mvcur.c */
2134#define INFINITY	1000000	/* cost: too high to use */
2135
2136extern NCURSES_EXPORT(int) _nc_mvcur(int yold, int xold, int ynew, int xnew);
2137
2138extern NCURSES_EXPORT(void) _nc_mvcur_init (void);
2139extern NCURSES_EXPORT(void) _nc_mvcur_resume (void);
2140extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void);
2141
2142extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int);
2143
2144extern NCURSES_EXPORT(void) _nc_screen_init (void);
2145extern NCURSES_EXPORT(void) _nc_screen_resume (void);
2146extern NCURSES_EXPORT(void) _nc_screen_wrap (void);
2147
2148/* lib_mouse.c */
2149extern NCURSES_EXPORT(bool) _nc_has_mouse (SCREEN *);
2150
2151/* lib_mvcur.c */
2152#define INFINITY	1000000	/* cost: too high to use */
2153#define BAUDBYTE	9	/* 9 = 7 bits + 1 parity + 1 stop */
2154
2155/* lib_setup.c */
2156extern NCURSES_EXPORT(char *) _nc_get_locale(void);
2157extern NCURSES_EXPORT(int)    _nc_unicode_locale(void);
2158extern NCURSES_EXPORT(int)    _nc_locale_breaks_acs(TERMINAL *);
2159extern NCURSES_EXPORT(int)    _nc_setupterm(const char *, int, int *, int);
2160extern NCURSES_EXPORT(void)   _nc_tinfo_cmdch(TERMINAL *, int);
2161
2162#ifdef USE_PTHREADS
2163extern NCURSES_EXPORT(SCREEN *) _nc_find_prescr(void);
2164extern NCURSES_EXPORT(void)   _nc_forget_prescr(void);
2165#else
2166#define _nc_find_prescr()     _nc_prescreen.allocated
2167#define _nc_forget_prescr()   _nc_prescreen.allocated = 0
2168#endif
2169
2170/* lib_set_term.c */
2171extern NCURSES_EXPORT(int)    _nc_ripoffline(int, int(*)(WINDOW*, int));
2172
2173/* lib_setup.c */
2174#define ExitTerminfo(code)    exit_terminfo(code)
2175
2176#define SETUP_FAIL ERR
2177
2178#define ret_error(rc, fmt, p, q)	if (errret) {\
2179					    *errret = rc;\
2180					    q;\
2181					    returnCode(SETUP_FAIL);\
2182					} else {\
2183					    fprintf(stderr, fmt, p);\
2184					    q;\
2185					    ExitTerminfo(EXIT_FAILURE);\
2186					}
2187
2188#define ret_error1(rc, fmt, p, q)	ret_error(rc, "'%s': " fmt, p, q)
2189
2190#define ret_error0(rc, msg)		if (errret) {\
2191					    *errret = rc;\
2192					    returnCode(SETUP_FAIL);\
2193					} else {\
2194					    fprintf(stderr, msg);\
2195					    ExitTerminfo(EXIT_FAILURE);\
2196					}
2197
2198/* lib_tstp.c */
2199#if USE_SIGWINCH
2200extern NCURSES_EXPORT(int) _nc_handle_sigwinch(SCREEN *);
2201#else
2202#define _nc_handle_sigwinch(a) /* nothing */
2203#endif
2204
2205/* lib_wacs.c */
2206#if USE_WIDEC_SUPPORT
2207extern NCURSES_EXPORT(void) _nc_init_wacs(void);
2208#endif
2209
2210typedef struct {
2211    char *s_head;	/* beginning of the string (may be null) */
2212    char *s_tail;	/* end of the string (may be null) */
2213    size_t s_size;	/* current remaining size available */
2214    size_t s_init;	/* total size available */
2215} string_desc;
2216
2217/* strings.c */
2218extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t);
2219extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t);
2220extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, string_desc *);
2221extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *);
2222extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *);
2223
2224#if !HAVE_STRSTR
2225#define strstr _nc_strstr
2226extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *);
2227#endif
2228
2229/* safe_sprintf.c */
2230extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list);
2231
2232/* tries.c */
2233extern NCURSES_EXPORT(int) _nc_add_to_try (TRIES **, const char *, unsigned);
2234extern NCURSES_EXPORT(char *) _nc_expand_try (TRIES *, unsigned, int *, size_t);
2235extern NCURSES_EXPORT(int) _nc_remove_key (TRIES **, unsigned);
2236extern NCURSES_EXPORT(int) _nc_remove_string (TRIES **, const char *);
2237
2238/* elsewhere ... */
2239extern NCURSES_EXPORT(SCREEN *) _nc_screen_of (WINDOW *);
2240extern NCURSES_EXPORT(TERMINAL*) _nc_get_cur_term (void);
2241extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int);
2242extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t);
2243extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *);
2244extern NCURSES_EXPORT(char *) _nc_tracechar (SCREEN *, int);
2245extern NCURSES_EXPORT(char *) _nc_tracemouse (SCREEN *, MEVENT const *);
2246extern NCURSES_EXPORT(char *) _nc_trace_mmask_t (SCREEN *, mmask_t);
2247extern NCURSES_EXPORT(int) _nc_access (const char *, int);
2248extern NCURSES_EXPORT(int) _nc_baudrate (int);
2249extern NCURSES_EXPORT(ENTRY *) _nc_delink_entry (ENTRY *, TERMTYPE2 *);
2250extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *);
2251extern NCURSES_EXPORT(int) _nc_getenv_num (const char *);
2252extern NCURSES_EXPORT(int) _nc_keypad (SCREEN *, int);
2253extern NCURSES_EXPORT(int) _nc_ospeed (int);
2254extern NCURSES_EXPORT(int) _nc_outch (int);
2255extern NCURSES_EXPORT(int) _nc_putchar (int);
2256extern NCURSES_EXPORT(int) _nc_putp(const char *, const char *);
2257extern NCURSES_EXPORT(int) _nc_putp_flush(const char *, const char *);
2258extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE2 *const);
2259extern NCURSES_EXPORT(int) _nc_setup_tinfo(const char *, TERMTYPE2 *);
2260extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, int, int);
2261extern NCURSES_EXPORT(int) _nc_timed_wait (SCREEN *, int, int, int * EVENTLIST_2nd(_nc_eventlist *));
2262extern NCURSES_EXPORT(void) _nc_init_termtype (TERMTYPE2 *const);
2263extern NCURSES_EXPORT(void) _nc_do_color (int, int, int, NCURSES_OUTC);
2264extern NCURSES_EXPORT(void) _nc_flush (void);
2265extern NCURSES_EXPORT(void) _nc_free_entry (ENTRY *, TERMTYPE2 *);
2266extern NCURSES_EXPORT(void) _nc_freeall (void);
2267extern NCURSES_EXPORT(void) _nc_hash_map (void);
2268extern NCURSES_EXPORT(void) _nc_init_keytry (SCREEN *);
2269extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *);
2270extern NCURSES_EXPORT(void) _nc_make_oldhash (int i);
2271extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot);
2272extern NCURSES_EXPORT(void) _nc_scroll_optimize (void);
2273extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, int);
2274extern NCURSES_EXPORT(void) _nc_setenv_num (const char *, int);
2275extern NCURSES_EXPORT(void) _nc_signal_handler (int);
2276extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *);
2277extern NCURSES_EXPORT(void) _nc_trace_tries (TRIES *);
2278
2279#if NCURSES_EXT_NUMBERS
2280extern NCURSES_EXPORT(const TERMTYPE2 *) _nc_fallback2 (const char *);
2281#else
2282#define _nc_fallback2(tp) _nc_fallback(tp)
2283#endif
2284
2285#if NCURSES_EXT_NUMBERS
2286extern NCURSES_EXPORT(void) _nc_copy_termtype2 (TERMTYPE2 *, const TERMTYPE2 *);
2287extern NCURSES_EXPORT(void) _nc_export_termtype2(TERMTYPE *, const TERMTYPE2 *);
2288#else
2289#define _nc_copy_termtype2(dst,src) _nc_copy_termtype((dst),(src))
2290#define _nc_export_termtype2(dst,src) /* nothing */
2291#define _nc_free_termtype2(t) _nc_free_termtype(t)
2292/* also... */
2293#define _nc_read_entry2 _nc_read_entry
2294#endif
2295
2296#if NO_LEAKS
2297extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void);
2298extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void);
2299extern NCURSES_EXPORT(void) _nc_codes_leaks(void);
2300extern NCURSES_EXPORT(void) _nc_comp_captab_leaks(void);
2301extern NCURSES_EXPORT(void) _nc_comp_error_leaks(void);
2302extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void);
2303extern NCURSES_EXPORT(void) _nc_comp_userdefs_leaks(void);
2304extern NCURSES_EXPORT(void) _nc_db_iterator_leaks(void);
2305extern NCURSES_EXPORT(void) _nc_keyname_leaks(void);
2306extern NCURSES_EXPORT(void) _nc_names_leaks(void);
2307extern NCURSES_EXPORT(void) _nc_tgetent_leak(TERMINAL *);
2308extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void);
2309#endif
2310
2311#if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2312extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T);
2313extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T);
2314extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, int const, int const, NCURSES_CH_T);
2315#endif
2316
2317#if USE_WIDEC_SUPPORT
2318extern NCURSES_EXPORT(int) _nc_insert_wch(WINDOW *, const cchar_t *);
2319#endif
2320
2321#if USE_WIDEC_SUPPORT && !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2322extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *);
2323#endif
2324
2325#if USE_SIZECHANGE
2326extern NCURSES_EXPORT(void) _nc_update_screensize (SCREEN *);
2327#endif
2328
2329#if HAVE_RESIZETERM
2330extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *);
2331#else
2332#define _nc_resize_margins(wp) /* nothing */
2333#endif
2334
2335#ifdef NCURSES_WGETCH_EVENTS
2336extern NCURSES_EXPORT(int) _nc_eventlist_timeout(_nc_eventlist *);
2337#else
2338#define wgetch_events(win, evl) wgetch(win)
2339#define wgetnstr_events(win, str, maxlen, evl) wgetnstr(win, str, maxlen)
2340#endif
2341
2342/*
2343 * Wide-character macros to hide some platform-differences.
2344 */
2345#if USE_WIDEC_SUPPORT
2346
2347#if defined(_WIN32)
2348/*
2349 * MinGW has wide-character functions, but they do not work correctly.
2350 */
2351
2352extern int __MINGW_NOTHROW _nc_wctomb(char *, wchar_t);
2353#define wctomb(s,wc) _nc_wctomb(s,wc)
2354#define wcrtomb(s,wc,n) _nc_wctomb(s,wc)
2355
2356extern int __MINGW_NOTHROW _nc_mbtowc(wchar_t *, const char *, size_t);
2357#define mbtowc(pwc,s,n) _nc_mbtowc(pwc,s,n)
2358
2359extern int __MINGW_NOTHROW _nc_mblen(const char *, size_t);
2360#define mblen(s,n) _nc_mblen(s, n)
2361
2362#endif /* _WIN32 */
2363
2364#if HAVE_MBTOWC && HAVE_MBLEN
2365#define reset_mbytes(state) IGNORE_RC(mblen(NULL, (size_t) 0)), IGNORE_RC(mbtowc(NULL, NULL, (size_t) 0))
2366#define count_mbytes(buffer,length,state) mblen(buffer,length)
2367#define check_mbytes(wch,buffer,length,state) \
2368	(int) mbtowc(&wch, buffer, length)
2369#define state_unused
2370#elif HAVE_MBRTOWC && HAVE_MBRLEN
2371#define reset_mbytes(state) init_mb(state)
2372#define count_mbytes(buffer,length,state) mbrlen(buffer,length,&state)
2373#define check_mbytes(wch,buffer,length,state) \
2374	(int) mbrtowc(&wch, buffer, length, &state)
2375#else
2376make an error
2377#endif
2378
2379#endif /* USE_WIDEC_SUPPORT */
2380
2381/*
2382 * Not everyone has vsscanf(), but we'd like to use it for scanw().
2383 */
2384#if !HAVE_VSSCANF
2385extern int vsscanf(const char *str, const char *format, va_list __arg);
2386#endif
2387
2388/* scroll indices */
2389extern NCURSES_EXPORT_VAR(int *) _nc_oldnums;
2390
2391#define USE_SETBUF_0 0
2392
2393#define NC_OUTPUT(sp) ((sp != 0 && sp->_ofp != 0) ? sp->_ofp : stdout)
2394
2395/*
2396 * On systems with a broken linker, define 'SP' as a function to force the
2397 * linker to pull in the data-only module with 'SP'.
2398 */
2399#define _nc_alloc_screen_sp() typeCalloc(SCREEN, 1)
2400
2401#if BROKEN_LINKER
2402#define SP _nc_screen()
2403extern NCURSES_EXPORT(SCREEN *) _nc_screen (void);
2404extern NCURSES_EXPORT(int)      _nc_alloc_screen (void);
2405extern NCURSES_EXPORT(void)     _nc_set_screen (SCREEN *);
2406#define CURRENT_SCREEN          _nc_screen()
2407#else
2408/* current screen is private data; avoid possible linking conflicts too */
2409extern NCURSES_EXPORT_VAR(SCREEN *) SP;
2410#define CURRENT_SCREEN SP
2411#define _nc_alloc_screen()      ((SP = _nc_alloc_screen_sp()) != 0)
2412#define _nc_set_screen(sp)      SP = sp
2413#endif
2414
2415#if NCURSES_SP_FUNCS
2416#define CURRENT_SCREEN_PRE      (IsPreScreen(CURRENT_SCREEN) ? CURRENT_SCREEN : new_prescr())
2417#else
2418#define CURRENT_SCREEN_PRE      CURRENT_SCREEN
2419#endif
2420
2421/*
2422 * We don't want to use the lines or columns capabilities internally, because
2423 * if the application is running multiple screens under X, it's quite possible
2424 * they could all have type xterm but have different sizes!  So...
2425 */
2426#define screen_lines(sp)        (sp)->_lines
2427#define screen_columns(sp)      (sp)->_columns
2428
2429extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int);
2430extern NCURSES_EXPORT(int) _nc_format_slks (NCURSES_SP_DCLx int _c);
2431
2432/*
2433 * Some constants related to SLK's
2434 */
2435#define MAX_SKEY_OLD	   8	/* count of soft keys */
2436#define MAX_SKEY_LEN_OLD   8	/* max length of soft key text */
2437#define MAX_SKEY_PC       12    /* This is what most PC's have */
2438#define MAX_SKEY_LEN_PC    5
2439
2440/* Macro to check whether or not we use a standard format */
2441#define SLK_STDFMT(fmt) (fmt < 3)
2442/* Macro to determine height of label window */
2443#define SLK_LINES(fmt)  (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2))
2444
2445#define MAX_SKEY(fmt)     (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC)
2446#define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC)
2447
2448/*
2449 * Common error messages
2450 */
2451#define MSG_NO_MEMORY "Out of memory"
2452#define MSG_NO_INPUTS "Premature EOF"
2453
2454extern NCURSES_EXPORT(int) _nc_set_tty_mode(TTY *);
2455extern NCURSES_EXPORT(int) _nc_get_tty_mode(TTY *);
2456
2457/* timed_wait flag definitions */
2458#define TW_NONE    0
2459#define TW_INPUT   1
2460#define TW_MOUSE   2
2461#define TW_ANY     (TW_INPUT | TW_MOUSE)
2462#define TW_EVENT   4
2463
2464#define SetSafeOutcWrapper(outc)	    \
2465    SCREEN* sp = CURRENT_SCREEN;            \
2466    struct screen outc_wrapper;		    \
2467    if (sp==0) {                            \
2468	sp = &outc_wrapper;                 \
2469	memset(sp,0,sizeof(struct screen)); \
2470	sp->_outch = _nc_outc_wrapper;      \
2471    }\
2472    sp->jump = outc
2473
2474#ifdef USE_TERM_DRIVER
2475
2476typedef struct _termInfo
2477{
2478    bool caninit;
2479
2480    bool hascolor;
2481    bool initcolor;
2482    bool canchange;
2483
2484    int  tabsize;
2485
2486    int  maxcolors;
2487    int  maxpairs;
2488    int  nocolorvideo;
2489
2490    int  numbuttons;
2491    int  numlabels;
2492    int  labelwidth;
2493    int  labelheight;
2494
2495    const color_t* defaultPalette;
2496} TerminalInfo;
2497
2498typedef struct term_driver {
2499    bool   isTerminfo;
2500    const char* (*td_name)(struct DriverTCB*);
2501    bool   (*td_CanHandle)(struct DriverTCB*, const char*, int*);
2502    void   (*td_init)(struct DriverTCB*);
2503    void   (*td_release)(struct DriverTCB*);
2504    int    (*td_size)(struct DriverTCB*, int* Line, int *Cols);
2505    int    (*td_sgmode)(struct DriverTCB*, int setFlag, TTY*);
2506    chtype (*td_conattr)(struct DriverTCB*);
2507    int    (*td_hwcur)(struct DriverTCB*, int yold, int xold, int y, int x);
2508    int    (*td_mode)(struct DriverTCB*, int progFlag, int defFlag);
2509    bool   (*td_rescol)(struct DriverTCB*);
2510    bool   (*td_rescolors)(struct DriverTCB*);
2511    void   (*td_color)(struct DriverTCB*, int fore, int color, int(*)(SCREEN*, int));
2512    int    (*td_doBeepOrFlash)(struct DriverTCB*, int);
2513    void   (*td_initpair)(struct DriverTCB*, int, int, int);
2514    void   (*td_initcolor)(struct DriverTCB*, int, int, int, int);
2515    void   (*td_docolor)(struct DriverTCB*, int, int, int, int(*)(SCREEN*, int));
2516    void   (*td_initmouse)(struct DriverTCB*);
2517    int    (*td_testmouse)(struct DriverTCB*, int EVENTLIST_2nd(_nc_eventlist*));
2518    void   (*td_setfilter)(struct DriverTCB*);
2519    void   (*td_hwlabel)(struct DriverTCB*, int, char*);
2520    void   (*td_hwlabelOnOff)(struct DriverTCB*, int);
2521    int    (*td_update)(struct DriverTCB*);
2522    int    (*td_defaultcolors)(struct DriverTCB*, int, int);
2523    int    (*td_print)(struct DriverTCB*, char*, int);
2524    int    (*td_getsize)(struct DriverTCB*, int*, int*);
2525    int    (*td_setsize)(struct DriverTCB*, int, int);
2526    void   (*td_initacs)(struct DriverTCB*, chtype*, chtype*);
2527    void   (*td_scinit)(SCREEN *);
2528    void   (*td_scexit)(SCREEN *);
2529    int    (*td_twait)(struct DriverTCB*, int, int, int* EVENTLIST_2nd(_nc_eventlist*));
2530    int    (*td_read)(struct DriverTCB*, int*);
2531    int    (*td_nap)(struct DriverTCB*, int);
2532    int    (*td_kpad)(struct DriverTCB*, int);
2533    int    (*td_kyOk)(struct DriverTCB*, int, int);
2534    bool   (*td_kyExist)(struct DriverTCB*, int);
2535    int    (*td_cursorSet)(struct DriverTCB*, int);
2536} TERM_DRIVER;
2537
2538typedef struct DriverTCB
2539{
2540    TERMINAL      term;   /* needs to be the first Element !!! */
2541    TERM_DRIVER*  drv;    /* The driver for that Terminal */
2542    SCREEN*       csp;    /* The screen that owns that Terminal */
2543    TerminalInfo  info;   /* Driver independent core capabilities of the Terminal */
2544    void*         prop;   /* Driver dependent property storage to be used by the Driver */
2545    long          magic;
2546} TERMINAL_CONTROL_BLOCK;
2547
2548#define NCDRV_MAGIC(id) (0x47110000 | (id&0xffff))
2549#define NCDRV_TINFO      0x01
2550#define NCDRV_WINCONSOLE 0x02
2551
2552#define TCBOf(sp)    ((TERMINAL_CONTROL_BLOCK*)(TerminalOf(sp)))
2553#define InfoOf(sp)   TCBOf(sp)->info
2554#define CallDriver(sp,method)                        TCBOf(sp)->drv->method(TCBOf(sp))
2555#define CallDriver_1(sp,method,arg1)                 TCBOf(sp)->drv->method(TCBOf(sp),arg1)
2556#define CallDriver_2(sp,method,arg1,arg2)            TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2)
2557#define CallDriver_3(sp,method,arg1,arg2,arg3)       TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2,arg3)
2558#define CallDriver_4(sp,method,arg1,arg2,arg3,arg4)  TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2,arg3,arg4)
2559
2560extern NCURSES_EXPORT_VAR(const color_t*) _nc_cga_palette;
2561extern NCURSES_EXPORT_VAR(const color_t*) _nc_hls_palette;
2562
2563extern NCURSES_EXPORT(int)      _nc_get_driver(TERMINAL_CONTROL_BLOCK*, const char*, int*);
2564extern NCURSES_EXPORT(void)     _nc_get_screensize_ex(SCREEN *, TERMINAL *, int *, int *);
2565#endif /* USE_TERM_DRIVER */
2566
2567/*
2568 * Entrypoints which are actually provided in the terminal driver, which would
2569 * be an sp-name otherwise.
2570 */
2571#ifdef USE_TERM_DRIVER
2572#define TINFO_HAS_KEY           _nc_tinfo_has_key
2573#define TINFO_DOUPDATE          _nc_tinfo_doupdate
2574#define TINFO_MVCUR             _nc_tinfo_mvcur
2575extern NCURSES_EXPORT(int)      TINFO_HAS_KEY(SCREEN*, int);
2576extern NCURSES_EXPORT(int)      TINFO_DOUPDATE(SCREEN *);
2577extern NCURSES_EXPORT(int)      TINFO_MVCUR(SCREEN*, int, int, int, int);
2578#else
2579#define TINFO_HAS_KEY           NCURSES_SP_NAME(has_key)
2580#define TINFO_DOUPDATE          NCURSES_SP_NAME(doupdate)
2581#define TINFO_MVCUR             NCURSES_SP_NAME(_nc_mvcur)
2582#endif
2583
2584/*
2585 * Entrypoints using an extra parameter with the terminal driver.
2586 */
2587#ifdef USE_TERM_DRIVER
2588extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, TERMINAL *, int *, int *);
2589extern NCURSES_EXPORT(int)    _nc_setupterm_ex(TERMINAL **, const char *, int , int *, int);
2590#define TINFO_GET_SIZE(sp, tp, lp, cp) \
2591	_nc_get_screensize(sp, tp, lp, cp)
2592#define TINFO_SET_CURTERM(sp, tp) \
2593	NCURSES_SP_NAME(set_curterm)(sp, tp)
2594#define TINFO_SETUP_TERM(tpp, name, fd, err, reuse) \
2595	_nc_setupterm_ex(tpp, name, fd, err, reuse)
2596#else /* !USE_TERM_DRIVER */
2597extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, int *, int *);
2598#define TINFO_GET_SIZE(sp, tp, lp, cp) \
2599	_nc_get_screensize(sp, lp, cp)
2600#define TINFO_SET_CURTERM(sp, tp) \
2601	set_curterm(tp)
2602#define TINFO_SETUP_TERM(tpp, name, fd, err, reuse) \
2603	_nc_setupterm(name, fd, err, reuse)
2604#endif /* !USE_TERM_DRIVER */
2605
2606#ifdef USE_TERM_DRIVER
2607#if defined(USE_WIN32CON_DRIVER)
2608#include <nc_mingw.h>
2609extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_WIN_DRIVER;
2610extern NCURSES_EXPORT(int)  _nc_mingw_isatty(int fd);
2611extern NCURSES_EXPORT(int)  _nc_mingw_isconsole(int fd);
2612extern NCURSES_EXPORT(int) _nc_mingw_console_read(
2613    SCREEN *sp,
2614    HANDLE  fd,
2615    int *buf);
2616extern NCURSES_EXPORT(int) _nc_mingw_testmouse(
2617    SCREEN * sp,
2618    HANDLE fd,
2619    int delay EVENTLIST_2nd(_nc_eventlist*));
2620#else
2621#endif
2622extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_TINFO_DRIVER;
2623#endif
2624
2625#if defined(USE_TERM_DRIVER) && defined(USE_WIN32CON_DRIVER)
2626#define NC_ISATTY(fd) _nc_mingw_isatty(fd)
2627#else
2628#define NC_ISATTY(fd) isatty(fd)
2629#endif
2630
2631#ifdef USE_TERM_DRIVER
2632#  define IsTermInfo(sp)       ((TCBOf(sp) != 0) && ((TCBOf(sp)->drv->isTerminfo)))
2633#  define HasTInfoTerminal(sp) ((0 != TerminalOf(sp)) && IsTermInfo(sp))
2634#  if defined(USE_WIN32CON_DRIVER)
2635#    define IsTermInfoOnConsole(sp) (IsTermInfo(sp)&&_nc_mingw_isconsole(TerminalOf(sp)->Filedes))
2636#else
2637#    define IsTermInfoOnConsole(sp) FALSE
2638#  endif
2639#else
2640#  define IsTermInfo(sp)       TRUE
2641#  define HasTInfoTerminal(sp) (0 != TerminalOf(sp))
2642#  define IsTermInfoOnConsole(sp) FALSE
2643#endif
2644
2645#define IsValidTIScreen(sp)  (HasTInfoTerminal(sp))
2646
2647/*
2648 * Exported entrypoints beyond the published API
2649 */
2650#if NCURSES_SP_FUNCS
2651extern NCURSES_EXPORT(WINDOW *) _nc_curscr_of(SCREEN*);
2652extern NCURSES_EXPORT(WINDOW *) _nc_newscr_of(SCREEN*);
2653extern NCURSES_EXPORT(WINDOW *) _nc_stdscr_of(SCREEN*);
2654extern NCURSES_EXPORT(int)      _nc_outc_wrapper(SCREEN*,int);
2655
2656#if USE_REENTRANT
2657extern NCURSES_EXPORT(int)       NCURSES_SP_NAME(_nc_TABSIZE)(SCREEN*);
2658extern NCURSES_EXPORT(char *)    NCURSES_SP_NAME(longname)(SCREEN*);
2659#endif
2660
2661#if NCURSES_EXT_FUNCS
2662extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tabsize)(SCREEN*, int);
2663#endif
2664
2665/*
2666 * We put the safe versions of various calls here as they are not published
2667 * part of the API up to now
2668 */
2669extern NCURSES_EXPORT(TERMINAL*) NCURSES_SP_NAME(_nc_get_cur_term) (SCREEN *sp);
2670extern NCURSES_EXPORT(WINDOW *) NCURSES_SP_NAME(_nc_makenew) (SCREEN*, int, int, int, int, int);
2671extern NCURSES_EXPORT(bool)     NCURSES_SP_NAME(_nc_reset_colors)(SCREEN*);
2672extern NCURSES_EXPORT(char *)   NCURSES_SP_NAME(_nc_printf_string)(SCREEN*, const char *, va_list);
2673extern NCURSES_EXPORT(chtype)   NCURSES_SP_NAME(_nc_acs_char)(SCREEN*,int);
2674extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_get_tty_mode)(SCREEN*,TTY*);
2675extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mcprint)(SCREEN*,char*, int);
2676extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_msec_cost)(SCREEN*, const char *, int);
2677extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mvcur)(SCREEN*, int, int, int, int);
2678extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_outch)(SCREEN*, int);
2679extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putchar)(SCREEN*, int);
2680extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp)(SCREEN*, const char *, const char*);
2681extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp_flush)(SCREEN*, const char *, const char *);
2682extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_ripoffline)(SCREEN*, int, int (*)(WINDOW *,int));
2683extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_scrolln)(SCREEN*, int, int, int, int);
2684extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tty_mode)(SCREEN*, TTY*);
2685extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_setupscreen)(SCREEN**, int, int, FILE *, int, int);
2686extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_tgetent)(SCREEN*,char*,const char *);
2687extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_color)(SCREEN*, int, int, int, NCURSES_SP_OUTC);
2688extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_xmc_glitch)(SCREEN*, attr_t);
2689extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_flush)(SCREEN*);
2690extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_free_and_exit)(SCREEN*, int) GCC_NORETURN;
2691extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_freeall)(SCREEN*);
2692extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_hash_map)(SCREEN*);
2693extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_init_acs)(SCREEN*);
2694extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_make_oldhash)(SCREEN*, int i);
2695extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_init)(SCREEN*);
2696extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_resume)(SCREEN*);
2697extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_wrap)(SCREEN*);
2698extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_init)(SCREEN*);
2699extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_resume)(SCREEN*);
2700extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_wrap)(SCREEN*);
2701extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_oldhash)(SCREEN*, int n, int top, int bot);
2702extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_optimize)(SCREEN*);
2703extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_set_buffer)(SCREEN*, FILE *, int);
2704
2705extern NCURSES_EXPORT(void)     _nc_cookie_init(SCREEN *sp);
2706
2707#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
2708extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_linedump)(SCREEN*);
2709#endif
2710
2711#if USE_WIDEC_SUPPORT
2712extern NCURSES_EXPORT(wchar_t *) NCURSES_SP_NAME(_nc_wunctrl)(SCREEN*, cchar_t *);
2713#endif
2714
2715#endif /* NCURSES_SP_FUNCS */
2716
2717#if NCURSES_SP_FUNCS
2718
2719#define safe_keyname NCURSES_SP_NAME(keyname)
2720#define safe_unctrl  NCURSES_SP_NAME(unctrl)
2721#define safe_ungetch NCURSES_SP_NAME(ungetch)
2722
2723#else
2724
2725#define safe_keyname _nc_keyname
2726#define safe_unctrl  _nc_unctrl
2727#define safe_ungetch _nc_ungetch
2728
2729extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_keyname (SCREEN *, int);
2730extern NCURSES_EXPORT(int) _nc_ungetch (SCREEN *, int);
2731extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_unctrl (SCREEN *, chtype);
2732
2733#endif
2734
2735#ifdef EXP_XTERM_1005
2736NCURSES_EXPORT(int) _nc_conv_to_utf8(unsigned char *, unsigned, unsigned);
2737NCURSES_EXPORT(int) _nc_conv_to_utf32(unsigned *, const char *, unsigned);
2738#endif
2739
2740#ifdef __cplusplus
2741}
2742#endif
2743
2744/* *INDENT-ON* */
2745
2746#endif /* CURSES_PRIV_H */
2747