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 1.639 2020/11/14 23:37:54 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_LIMITS_H
76# include <limits.h>
77#elif HAVE_SYS_PARAM_H
78# include <sys/param.h>
79#endif
80
81#include <assert.h>
82#include <stdio.h>
83
84#include <errno.h>
85
86#if defined __hpux
87#  ifndef EILSEQ
88#    define EILSEQ 47
89#  endif
90#endif
91
92#ifndef PATH_MAX
93# if defined(_POSIX_PATH_MAX)
94#  define PATH_MAX _POSIX_PATH_MAX
95# elif defined(MAXPATHLEN)
96#  define PATH_MAX MAXPATHLEN
97# else
98#  define PATH_MAX 255	/* the Posix minimum path-size */
99# endif
100#endif
101
102#if DECL_ERRNO
103extern int errno;
104#endif
105
106/* Some Windows related defines */
107#undef _NC_WINDOWS
108#if (defined(_WIN32) || defined(_WIN64))
109#define _NC_WINDOWS
110#else
111#undef EXP_WIN32_DRIVER
112#endif
113
114#undef _NC_MINGW
115#if (defined(__MINGW32__) || defined(__MINGW64__))
116#define _NC_MINGW
117#endif
118
119#undef _NC_MSC
120#ifdef _MSC_VER
121#define _NC_MSC
122#endif
123
124/* Some systems have a broken 'select()', but workable 'poll()'.  Use that */
125#if HAVE_WORKING_POLL
126#define USE_FUNC_POLL 1
127#if HAVE_POLL_H
128#include <poll.h>
129#else
130#include <sys/poll.h>
131#endif
132#else
133#define USE_FUNC_POLL 0
134#endif
135
136#if HAVE_INTTYPES_H
137# include <inttypes.h>
138#else
139# if HAVE_STDINT_H
140#  include <stdint.h>
141# endif
142#endif
143
144/* include signal.h before curses.h to work-around defect in glibc 2.1.3 */
145#include <signal.h>
146
147/* Alessandro Rubini's GPM (general-purpose mouse) */
148#if HAVE_LIBGPM && HAVE_GPM_H
149#define USE_GPM_SUPPORT 1
150#else
151#define USE_GPM_SUPPORT 0
152#endif
153
154/* QNX mouse support */
155#if defined(__QNX__) && !defined(__QNXNTO__)
156#define USE_QNX_MOUSE 1
157#else
158#define USE_QNX_MOUSE 0
159#endif
160
161/* EMX mouse support */
162#ifdef __EMX__
163#define USE_EMX_MOUSE 1
164#else
165#define USE_EMX_MOUSE 0
166#endif
167
168/* kLIBC keyboard/mouse support */
169#if defined(__OS2__) && defined(__KLIBC__)
170#define USE_KLIBC_KBD   1
171#define USE_KLIBC_MOUSE 1
172#else
173#define USE_KLIBC_KBD   0
174#define USE_KLIBC_MOUSE 0
175#endif
176
177#define DEFAULT_MAXCLICK 166
178#define EV_MAX		8	/* size of mouse circular event queue */
179
180/*
181 * If we don't have signals to support it, don't add a sigwinch handler.
182 * In any case, resizing is an extended feature.  Use it if we've got it.
183 */
184#if !NCURSES_EXT_FUNCS
185#undef HAVE_SIZECHANGE
186#define HAVE_SIZECHANGE 0
187#endif
188
189#if HAVE_SIZECHANGE && USE_SIGWINCH && defined(SIGWINCH)
190#define USE_SIZECHANGE 1
191#else
192#define USE_SIZECHANGE 0
193#undef USE_SIGWINCH
194#define USE_SIGWINCH 0
195#endif
196
197/*
198 * When building in the MSYS2 environment, the automatic discovery of
199 * the path separator in configure doesn't work properly. So, if building
200 * for MinGW, we enforce the correct Windows PATH separator
201 */
202#if defined(_NC_WINDOWS)
203#  ifdef NCURSES_PATHSEP
204#    undef NCURSES_PATHSEP
205#  endif
206#  define NCURSES_PATHSEP ';'
207#endif
208
209/*
210 * If desired, one can configure this, disabling environment variables that
211 * point to custom terminfo/termcap locations.
212 */
213#ifdef USE_ROOT_ENVIRON
214#define use_terminfo_vars() 1
215#else
216#define use_terminfo_vars() _nc_env_access()
217extern NCURSES_EXPORT(int) _nc_env_access (void);
218#endif
219
220/*
221 * Not all platforms have memmove; some have an equivalent bcopy.  (Some may
222 * have neither).
223 */
224#if USE_OK_BCOPY
225#define memmove(d,s,n) bcopy(s,d,n)
226#elif USE_MY_MEMMOVE
227#define memmove(d,s,n) _nc_memmove(d,s,n)
228extern NCURSES_EXPORT(void *) _nc_memmove (void *, const void *, size_t);
229#endif
230
231/*
232 * If we have va_copy(), use it for assigning va_list's.
233 */
234#if defined(HAVE___VA_COPY)
235#define begin_va_copy(dst,src)	__va_copy(dst, src)
236#define end_va_copy(dst)	va_end(dst)
237#elif defined(va_copy) || defined(HAVE_VA_COPY)
238#define begin_va_copy(dst,src)	va_copy(dst, src)
239#define end_va_copy(dst)	va_end(dst)
240#else
241#define begin_va_copy(dst,src) (dst) = (src)
242#define end_va_copy(dst)	/* nothing */
243#endif
244
245/*
246 * Either/both S_ISxxx and/or S_IFxxx are defined in sys/types.h; some systems
247 * lack one or the other.
248 */
249#ifndef S_ISDIR
250#define S_ISDIR(mode) ((mode & S_IFMT) == S_IFDIR)
251#endif
252
253#ifndef S_ISREG
254#define S_ISREG(mode) ((mode & S_IFMT) == S_IFREG)
255#endif
256
257/*
258 * POSIX ignores the "b", which c89 specified.  Some very old systems do not
259 * accept it.
260 */
261#if USE_FOPEN_BIN_R
262#define BIN_R	"rb"
263#define BIN_W	"wb"
264#else
265#define BIN_R	"r"
266#define BIN_W	"w"
267#endif
268
269/*
270 * Scroll hints are useless when hashmap is used
271 */
272#if !USE_SCROLL_HINTS
273#if !USE_HASHMAP
274#define USE_SCROLL_HINTS 1
275#else
276#define USE_SCROLL_HINTS 0
277#endif
278#endif
279
280#if USE_SCROLL_HINTS
281#define if_USE_SCROLL_HINTS(stmt) stmt
282#else
283#define if_USE_SCROLL_HINTS(stmt) /*nothing*/
284#endif
285
286#include <nc_string.h>
287
288/*
289 * Options for terminal drivers, etc...
290 */
291#ifdef USE_TERM_DRIVER
292#define NO_TERMINAL "unknown"
293#define USE_SP_RIPOFF     1
294#define USE_SP_TERMTYPE   1
295#define USE_SP_WINDOWLIST 1
296#else
297#define NO_TERMINAL 0
298#endif
299
300#define VALID_TERM_ENV(term_env, no_terminal) \
301	(term_env = (NonEmpty(term_env) \
302		     ? term_env \
303		     : no_terminal), \
304	 NonEmpty(term_env))
305
306/*
307 * Note:  ht/cbt expansion flakes out randomly under Linux 1.1.47, but only
308 * when we're throwing control codes at the screen at high volume.  To see
309 * this, re-enable USE_HARD_TABS and run worm for a while.  Other systems
310 * probably don't want to define this either due to uncertainties about tab
311 * delays and expansion in raw mode.
312 */
313
314#define TRIES struct tries
315typedef TRIES {
316	TRIES    *child;            /* ptr to child.  NULL if none          */
317	TRIES    *sibling;          /* ptr to sibling.  NULL if none        */
318	unsigned char    ch;        /* character at this node               */
319	unsigned short   value;     /* code of string so far.  0 if none.   */
320#undef TRIES
321} TRIES;
322
323/*
324 * Common/troublesome character definitions
325 */
326#define StringOf(ch) {ch, 0}
327
328#define L_BRACE '{'
329#define R_BRACE '}'
330#define S_QUOTE '\''
331#define D_QUOTE '"'
332
333#define VT_ACSC "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~"
334
335/*
336 * Structure for palette tables
337 */
338
339#define MAXCOLUMNS    135
340#define MAXLINES      66
341#define FIFO_SIZE     MAXCOLUMNS+2  /* for nocbreak mode input */
342
343#define ACS_LEN       128
344
345#define WINDOWLIST struct _win_list
346
347#if USE_WIDEC_SUPPORT
348#define _nc_bkgd    _bkgrnd
349#else
350#undef _XOPEN_SOURCE_EXTENDED
351#undef _XPG5
352#define _nc_bkgd    _bkgd
353#define wgetbkgrnd(win, wch)	((*wch = win->_bkgd) != 0 ? OK : ERR)
354#define wbkgrnd	    wbkgd
355#endif
356
357#undef NCURSES_OPAQUE
358#define NCURSES_INTERNALS 1
359#define NCURSES_OPAQUE 0
360
361#include <curses.h>	/* we'll use -Ipath directive to get the right one! */
362
363#if !(defined(NCURSES_WGETCH_EVENTS) && defined(NEED_KEY_EVENT))
364#undef KEY_EVENT		/* reduce compiler-warnings with Visual C++ */
365#endif
366
367typedef struct
368{
369    int red, green, blue;	/* what color_content() returns */
370    int r, g, b;		/* params to init_color() */
371    int init;			/* true if we called init_color() */
372}
373color_t;
374
375typedef union {
376    struct {
377	unsigned char red;
378	unsigned char green;
379	unsigned char blue;
380    } bits;			/* bits per color-value in RGB */
381    unsigned value;
382} rgb_bits_t;
383
384/*
385 * If curses.h did not expose the SCREEN-functions, then we do not need the
386 * parameter in the corresponding unextended functions.
387 */
388
389#define USE_SP_FUNC_SUPPORT     NCURSES_SP_FUNCS
390#define USE_EXT_SP_FUNC_SUPPORT (NCURSES_SP_FUNCS && NCURSES_EXT_FUNCS)
391
392#if NCURSES_SP_FUNCS
393#define SP_PARM         sp	/* use parameter */
394#define NCURSES_SP_ARG          SP_PARM
395#define NCURSES_SP_DCL  SCREEN *NCURSES_SP_ARG
396#define NCURSES_SP_DCL0 NCURSES_SP_DCL
397#define NCURSES_SP_ARGx         NCURSES_SP_ARG,
398#define NCURSES_SP_DCLx SCREEN *NCURSES_SP_ARGx
399#else
400#define SP_PARM         SP	/* use global variable */
401#define NCURSES_SP_ARG
402#define NCURSES_SP_DCL
403#define NCURSES_SP_DCL0 void
404#define NCURSES_SP_ARGx
405#define NCURSES_SP_DCLx
406#endif
407
408#include <nc_panel.h>
409
410#include <term.h>
411#include <nc_termios.h>
412
413#define IsPreScreen(sp)      (((sp) != 0) && sp->_prescreen)
414#define HasTerminal(sp)      (((sp) != 0) && (0 != ((sp)->_term)))
415#define IsValidScreen(sp)    (HasTerminal(sp) && !IsPreScreen(sp))
416
417#if USE_REENTRANT
418#define CurTerm              _nc_prescreen._cur_term
419#else
420#define CurTerm              cur_term
421#endif
422
423#if NCURSES_SP_FUNCS
424#define TerminalOf(sp)       ((sp) ? ((sp)->_term ? (sp)->_term : CurTerm) : CurTerm)
425#else
426#define TerminalOf(sp)       CurTerm
427#endif
428
429/*
430 * The legacy layout for TERMTYPE uses "short" for all of the numbers.  Moving
431 * past that, numeric capabilities can be "int" by using a TERMTYPE2 structure
432 * in TERMINAL, and doing most of the internal work using TERMTYPE2.  There are
433 * a few places (mostly to expose the legacy layout) where the distinction
434 * needs attention.
435 */
436#if NCURSES_EXT_COLORS && HAVE_INIT_EXTENDED_COLOR
437#define NCURSES_EXT_NUMBERS  1
438#define NCURSES_INT2         int
439#define SIZEOF_INT2          4
440#define TerminalType(tp)     (tp)->type2
441#else
442#define NCURSES_EXT_NUMBERS  0
443#define NCURSES_INT2         short
444#define SIZEOF_INT2          2
445#define TerminalType(tp)     (tp)->type
446#endif
447
448#define SIZEOF_SHORT         2
449
450#ifdef CUR
451#undef CUR
452#define CUR TerminalType(cur_term).
453#endif
454
455/*
456 * Reduce dependency on cur_term global by using terminfo data from SCREEN's
457 * pointer to this data.
458 */
459#ifdef USE_SP_TERMTYPE
460#undef CUR
461#endif
462
463#define SP_TERMTYPE TerminalType(TerminalOf(sp)).
464
465#include <term_entry.h>
466
467#include <nc_tparm.h>
468
469/*
470 * Simplify ifdef's for the "*_ATTR" macros in case italics are not configured.
471 */
472#if defined(A_ITALIC) && defined(exit_italics_mode)
473#define USE_ITALIC 1
474#else
475#define USE_ITALIC 0
476#undef  A_ITALIC
477#define A_ITALIC 0
478#endif
479
480/*
481 * Use these macros internally, to make tracing less verbose.  But leave the
482 * option for compiling the tracing into the library.
483 */
484#if 1
485#define ColorPair(n)		(NCURSES_BITS(n, 0) & A_COLOR)
486#define PairNumber(a)		(NCURSES_CAST(int,(((unsigned long)(a) & A_COLOR) >> NCURSES_ATTR_SHIFT)))
487#else
488#define ColorPair(pair)		COLOR_PAIR(pair)
489#define PairNumber(attr)	PAIR_NUMBER(attr)
490#endif
491
492#define unColor(n)		unColor2(AttrOf(n))
493#define unColor2(a)		((a) & ALL_BUT_COLOR)
494
495/*
496 * Extended-colors stores the color pair in a separate struct-member than the
497 * attributes.  But for compatibility, we handle most cases where a program
498 * written for non-extended colors stores the color in the attributes by
499 * checking for a color pair in both places.
500 */
501#if NCURSES_EXT_COLORS
502#define if_EXT_COLORS(stmt)	stmt
503#define SetPair(value,p)	SetPair2((value).ext_color, AttrOf(value), p)
504#define SetPair2(c,a,p)		c = (p), \
505				a = (unColor2(a) | ColorPair(oldColor(c)))
506#define GetPair(value)		GetPair2((value).ext_color, AttrOf(value))
507#define GetPair2(c,a)		((c) ? (c) : PairNumber(a))
508#define oldColor(p)		(((p) > 255) ? 255 : (p))
509#define GET_WINDOW_PAIR(w)	GetPair2((w)->_color, (w)->_attrs)
510#define SET_WINDOW_PAIR(w,p)	(w)->_color = (p)
511#define SameAttrOf(a,b)		(AttrOf(a) == AttrOf(b) && GetPair(a) == GetPair(b))
512
513#define VIDPUTS(sp,attr,pair)	do { \
514				    int vid_pair = pair; \
515				    NCURSES_SP_NAME(vid_puts)( \
516					NCURSES_SP_ARGx attr, \
517					(NCURSES_PAIRS_T) pair, \
518					&vid_pair, \
519					NCURSES_OUTC_FUNC); \
520				} while (0)
521
522#else /* !NCURSES_EXT_COLORS */
523
524#define if_EXT_COLORS(stmt)	/* nothing */
525#define SetPair(value,p)	RemAttr(value, A_COLOR), \
526				SetAttr(value, AttrOf(value) | ColorPair(p))
527#define GetPair(value)		PairNumber(AttrOf(value))
528#define GET_WINDOW_PAIR(w)	PairNumber(WINDOW_ATTRS(w))
529#define SET_WINDOW_PAIR(w,p)	WINDOW_ATTRS(w) &= ALL_BUT_COLOR, \
530				WINDOW_ATTRS(w) |= ColorPair(p)
531#define SameAttrOf(a,b)		(AttrOf(a) == AttrOf(b))
532
533#define VIDPUTS(sp,attr,pair)	NCURSES_SP_NAME(vidputs)(NCURSES_SP_ARGx attr, NCURSES_OUTC_FUNC)
534
535#endif /* NCURSES_EXT_COLORS */
536
537#define NCURSES_OUTC_FUNC       NCURSES_SP_NAME(_nc_outch)
538#define NCURSES_PUTP2(name,value)    NCURSES_SP_NAME(_nc_putp)(NCURSES_SP_ARGx name, value)
539#define NCURSES_PUTP2_FLUSH(name,value)    NCURSES_SP_NAME(_nc_putp_flush)(NCURSES_SP_ARGx name, value)
540
541#if NCURSES_NO_PADDING
542#define GetNoPadding(sp)	((sp) ? (sp)->_no_padding : _nc_prescreen._no_padding)
543#define SetNoPadding(sp)	_nc_set_no_padding(sp)
544extern NCURSES_EXPORT(void)     _nc_set_no_padding(SCREEN *);
545#else
546#define GetNoPadding(sp)	FALSE
547#define SetNoPadding(sp)	/*nothing*/
548#endif
549
550#define WINDOW_ATTRS(w)		((w)->_attrs)
551
552#define SCREEN_ATTRS(s)		(*((s)->_current_attr))
553#define GET_SCREEN_PAIR(s)	GetPair(SCREEN_ATTRS(s))
554#define SET_SCREEN_PAIR(s,p)	SetPair(SCREEN_ATTRS(s), p)
555
556#if USE_REENTRANT || NCURSES_SP_FUNCS
557NCURSES_EXPORT(int *)        _nc_ptr_Lines (SCREEN *);
558NCURSES_EXPORT(int *)        _nc_ptr_Cols (SCREEN *);
559NCURSES_EXPORT(int *)        _nc_ptr_Tabsize (SCREEN *);
560NCURSES_EXPORT(int *)        _nc_ptr_Escdelay (SCREEN *);
561#endif
562
563#if USE_REENTRANT
564
565#define ptrLines(sp)         (sp ? &(sp->_LINES) : &(_nc_prescreen._LINES))
566#define ptrCols(sp)          (sp ? &(sp->_COLS) : &(_nc_prescreen._COLS))
567#define ptrTabsize(sp)       (sp ? &(sp->_TABSIZE) : &(_nc_prescreen._TABSIZE))
568#define ptrEscdelay(sp)      (sp ? &(sp->_ESCDELAY) : &(_nc_prescreen._ESCDELAY))
569
570#define SET_LINES(value)     *_nc_ptr_Lines(SP_PARM) = value
571#define SET_COLS(value)      *_nc_ptr_Cols(SP_PARM) = value
572#define SET_TABSIZE(value)   *_nc_ptr_Tabsize(SP_PARM) = value
573#define SET_ESCDELAY(value)  *_nc_ptr_Escdelay(SP_PARM) = value
574
575#else
576
577#define ptrLines(sp)         &LINES
578#define ptrCols(sp)          &COLS
579#define ptrTabsize(sp)       &TABSIZE
580#define ptrEscdelay(sp)      &ESCDELAY
581
582#define SET_LINES(value)     LINES = value
583#define SET_COLS(value)      COLS = value
584#define SET_TABSIZE(value)   TABSIZE = value
585#define SET_ESCDELAY(value)  ESCDELAY = value
586
587#endif
588
589#define HasHardTabs()	(NonEmpty(clear_all_tabs) && NonEmpty(set_tab))
590
591#define TR_MUTEX(data) _tracef("%s@%d: me:%08lX COUNT:%2u/%2d/%6d/%2d/%s%9u: " #data, \
592	    __FILE__, __LINE__, \
593	    (unsigned long) (pthread_self()), \
594	    data.__data.__lock, \
595	    data.__data.__count, \
596	    data.__data.__owner, \
597	    data.__data.__kind, \
598	    (data.__data.__nusers > 5) ? " OOPS " : "", \
599	    data.__data.__nusers)
600#define TR_GLOBAL_MUTEX(name) TR_MUTEX(_nc_globals.mutex_##name)
601
602#if USE_WEAK_SYMBOLS
603#if defined(__GNUC__)
604#  if defined __USE_ISOC99
605#    define _cat_pragma(exp)	_Pragma(#exp)
606#    define _weak_pragma(exp)	_cat_pragma(weak name)
607#  else
608#    define _weak_pragma(exp)
609#  endif
610#  define _declare(name)	__extension__ extern __typeof__(name) name
611#  define weak_symbol(name)	_weak_pragma(name) _declare(name) __attribute__((weak))
612#else
613#  undef USE_WEAK_SYMBOLS
614#  define USE_WEAK_SYMBOLS 0
615#endif
616#endif
617
618#ifdef USE_PTHREADS
619
620#if USE_REENTRANT
621#include <pthread.h>
622extern NCURSES_EXPORT(void) _nc_init_pthreads(void);
623extern NCURSES_EXPORT(void) _nc_mutex_init(pthread_mutex_t *);
624extern NCURSES_EXPORT(int) _nc_mutex_lock(pthread_mutex_t *);
625extern NCURSES_EXPORT(int) _nc_mutex_trylock(pthread_mutex_t *);
626extern NCURSES_EXPORT(int) _nc_mutex_unlock(pthread_mutex_t *);
627#define _nc_lock_global(name)	_nc_mutex_lock(&_nc_globals.mutex_##name)
628#define _nc_try_global(name)    _nc_mutex_trylock(&_nc_globals.mutex_##name)
629#define _nc_unlock_global(name)	_nc_mutex_unlock(&_nc_globals.mutex_##name)
630
631#else
632#error POSIX threads requires --enable-reentrant option
633#endif
634
635#ifdef USE_PTHREADS
636#  if USE_WEAK_SYMBOLS
637weak_symbol(pthread_sigmask);
638weak_symbol(pthread_kill);
639weak_symbol(pthread_self);
640weak_symbol(pthread_equal);
641weak_symbol(pthread_mutex_init);
642weak_symbol(pthread_mutex_lock);
643weak_symbol(pthread_mutex_unlock);
644weak_symbol(pthread_mutex_trylock);
645weak_symbol(pthread_mutexattr_settype);
646weak_symbol(pthread_mutexattr_init);
647extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
648#    undef  sigprocmask
649#    define sigprocmask(a, b, c) _nc_sigprocmask(a, b, c)
650#    define GetThreadID() (((pthread_self)) ? pthread_self() : (pthread_t) getpid())
651#  else
652#    define GetThreadID() pthread_self()
653#  endif
654#endif
655
656#if HAVE_NANOSLEEP
657#undef HAVE_NANOSLEEP
658#define HAVE_NANOSLEEP 0	/* nanosleep suspends all threads */
659#endif
660
661#else /* !USE_PTHREADS */
662
663#if USE_PTHREADS_EINTR
664#  if USE_WEAK_SYMBOLS
665#include <pthread.h>
666weak_symbol(pthread_sigmask);
667weak_symbol(pthread_kill);
668weak_symbol(pthread_self);
669weak_symbol(pthread_equal);
670extern NCURSES_EXPORT(int) _nc_sigprocmask(int, const sigset_t *, sigset_t *);
671#    undef  sigprocmask
672#    define sigprocmask(a, b, c) _nc_sigprocmask(a, b, c)
673#  endif
674#endif /* USE_PTHREADS_EINTR */
675
676#define _nc_init_pthreads()	/* nothing */
677#define _nc_mutex_init(obj)	/* nothing */
678
679#define _nc_lock_global(name)	/* nothing */
680#define _nc_try_global(name)    0
681#define _nc_unlock_global(name)	/* nothing */
682
683#endif /* USE_PTHREADS */
684
685/*
686 * When using sp-funcs, locks are targeted to SCREEN-level granularity.
687 * So the locking is done in the non-sp-func (which calls the sp-func) rather
688 * than in the sp-func itself.
689 *
690 * Use the _nc_nonsp_XXX functions in the function using "NCURSES_SP_NAME()".
691 * Use the _nc_sp_XXX functions in the function using "#if NCURSES_SP_FUNCS".
692 */
693#if NCURSES_SP_FUNCS
694
695#define _nc_nonsp_lock_global(name)	/* nothing */
696#define _nc_nonsp_try_global(name)    0
697#define _nc_nonsp_unlock_global(name)	/* nothing */
698
699#define _nc_sp_lock_global(name)	_nc_lock_global(name)
700#define _nc_sp_try_global(name)         _nc_try_global(name)
701#define _nc_sp_unlock_global(name)	_nc_unlock_global(name)
702
703#else
704
705#define _nc_nonsp_lock_global(name)	_nc_lock_global(name)
706#define _nc_nonsp_try_global(name)      _nc_try_global(name)
707#define _nc_nonsp_unlock_global(name)	_nc_unlock_global(name)
708
709#define _nc_sp_lock_global(name)	/* nothing */
710#define _nc_sp_try_global(name)    0
711#define _nc_sp_unlock_global(name)	/* nothing */
712
713#endif
714
715#if HAVE_GETTIMEOFDAY
716# define PRECISE_GETTIME 1
717# define TimeType struct timeval
718#else
719# define PRECISE_GETTIME 0
720# define TimeType time_t
721#endif
722
723/*
724 * Definitions for color pairs
725 */
726
727#define MAX_OF_TYPE(t)   (int)(((unsigned t)(~0))>>1)
728
729#include <new_pair.h>
730
731#define isDefaultColor(c)	((c) < 0)
732#define COLOR_DEFAULT		-1
733
734#if defined(USE_BUILD_CC) || (defined(USE_TERMLIB) && !defined(NEED_NCURSES_CH_T))
735
736#undef NCURSES_CH_T		/* this is not a termlib feature */
737#define NCURSES_CH_T void	/* ...but we need a pointer in SCREEN */
738
739#endif	/* USE_TERMLIB */
740
741#ifndef USE_TERMLIB
742struct ldat
743{
744	NCURSES_CH_T	*text;		/* text of the line */
745	NCURSES_SIZE_T	firstchar;	/* first changed character in the line */
746	NCURSES_SIZE_T	lastchar;	/* last changed character in the line */
747	NCURSES_SIZE_T	oldindex;	/* index of the line at last update */
748};
749#endif	/* USE_TERMLIB */
750
751typedef enum {
752	M_XTERM	= -1		/* use xterm's mouse tracking? */
753	,M_NONE = 0		/* no mouse device */
754#if USE_GPM_SUPPORT
755	,M_GPM			/* use GPM */
756#endif
757#if USE_SYSMOUSE
758	,M_SYSMOUSE		/* FreeBSD sysmouse on console */
759#endif
760#ifdef USE_TERM_DRIVER
761	,M_TERM_DRIVER		/* Win32 console, etc */
762#endif
763} MouseType;
764
765typedef enum {
766    	MF_X10 = 0		/* conventional 3-byte format */
767	, MF_SGR1006		/* xterm private mode 1006, SGR-style */
768#ifdef EXP_XTERM_1005
769	, MF_XTERM_1005		/* xterm UTF-8 private mode 1005 */
770#endif
771} MouseFormat;
772
773/*
774 * Structures for scrolling.
775 */
776
777typedef struct {
778	unsigned long hashval;
779	int oldcount, newcount;
780	int oldindex, newindex;
781} HASHMAP;
782
783/*
784 * Structures for soft labels.
785 */
786
787struct _SLK;
788
789#if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
790
791typedef struct
792{
793	char *ent_text;		/* text for the label */
794	char *form_text;	/* formatted text (left/center/...) */
795	int ent_x;		/* x coordinate of this field */
796	char dirty;		/* this label has changed */
797	char visible;		/* field is visible */
798} slk_ent;
799
800typedef struct _SLK {
801	bool    dirty;		/* all labels have changed */
802	bool    hidden;		/* soft labels are hidden */
803	WINDOW  *win;
804	slk_ent *ent;
805	short   maxlab;		/* number of available labels */
806	short   labcnt;		/* number of allocated labels */
807	short   maxlen;		/* length of labels */
808	NCURSES_CH_T attr;	/* soft label attribute */
809} SLK;
810
811#endif	/* USE_TERMLIB */
812
813typedef	struct {
814	WINDOW *win;		/* the window used in the hook      */
815	int	line;		/* lines to take, < 0 => from bottom*/
816	int	(*hook)(WINDOW *, int); /* callback for user	    */
817} ripoff_t;
818
819#if USE_GPM_SUPPORT
820#undef buttons			/* term.h defines this, and gpm uses it! */
821#include <gpm.h>
822#if USE_WEAK_SYMBOLS
823weak_symbol(Gpm_Wgetch);
824#endif
825
826#ifdef HAVE_LIBDL
827/* link dynamically to GPM */
828typedef int *TYPE_gpm_fd;
829typedef int (*TYPE_Gpm_Open) (Gpm_Connect *, int);
830typedef int (*TYPE_Gpm_Close) (void);
831typedef int (*TYPE_Gpm_GetEvent) (Gpm_Event *);
832
833#define my_gpm_fd       SP_PARM->_mouse_gpm_fd
834#define my_Gpm_Open     SP_PARM->_mouse_Gpm_Open
835#define my_Gpm_Close    SP_PARM->_mouse_Gpm_Close
836#define my_Gpm_GetEvent SP_PARM->_mouse_Gpm_GetEvent
837#else
838/* link statically to GPM */
839#define my_gpm_fd       &gpm_fd
840#define my_Gpm_Open     Gpm_Open
841#define my_Gpm_Close    Gpm_Close
842#define my_Gpm_GetEvent Gpm_GetEvent
843#endif /* HAVE_LIBDL */
844#endif /* USE_GPM_SUPPORT */
845
846typedef struct {
847    long sequence;
848    bool last_used;
849    char *fix_sgr0;		/* this holds the filtered sgr0 string */
850    char *last_bufp;		/* help with fix_sgr0 leak */
851    TERMINAL *last_term;
852} TGETENT_CACHE;
853
854#define TGETENT_MAX 4
855
856/*
857 * When converting from terminfo to termcap, check for cases where we can trim
858 * octal escapes down to 2-character form.  It is useful for terminfo format
859 * also, but not as important.
860 */
861#define MAX_TC_FIXUPS	10
862#define MIN_TC_FIXUPS	4
863
864#define isoctal(c) ((c) >= '0' && (c) <= '7')
865
866/*
867 * State of tparm().
868 */
869#define STACKSIZE 20
870
871typedef struct {
872	union {
873		int	num;
874		char	*str;
875	} data;
876	bool num_type;
877} STACK_FRAME;
878
879#define NUM_VARS 26
880
881typedef struct {
882	const char	*tparam_base;
883
884	STACK_FRAME	stack[STACKSIZE];
885	int		stack_ptr;
886
887	char		*out_buff;
888	size_t		out_size;
889	size_t		out_used;
890
891	char		*fmt_buff;
892	size_t		fmt_size;
893
894	int		dynamic_var[NUM_VARS];
895	int		static_vars[NUM_VARS];
896#ifdef TRACE
897	const char	*tname;
898#endif
899} TPARM_STATE;
900
901typedef struct {
902    char *text;
903    size_t size;
904} TRACEBUF;
905
906/*
907 * The filesystem database normally uses a single-letter for the lower level
908 * of directories.  Use a hexadecimal code for filesystems which do not
909 * preserve mixed-case names.
910 */
911#if MIXEDCASE_FILENAMES
912#define LEAF_FMT "%c"
913#define LEAF_LEN 1
914#else
915#define LEAF_FMT "%02x"
916#define LEAF_LEN 2
917#endif
918
919/*
920 * TRACEMSE_FMT is no longer than 80 columns, there are 5 numbers that
921 * could at most have 10 digits, and the mask contains no more than 32 bits
922 * with each bit representing less than 15 characters.  Usually the whole
923 * string is less than 80 columns, but this buffer size is an absolute
924 * limit.
925 */
926#define TRACEMSE_MAX	(80 + (5 * 10) + (32 * 15))
927#define TRACEMSE_FMT	"id %2d  at (%2d, %2d, %2d) state %4lx = {" /* } */
928
929#ifdef USE_TERM_DRIVER
930struct DriverTCB; /* Terminal Control Block forward declaration */
931#define INIT_TERM_DRIVER()	_nc_globals.term_driver = _nc_get_driver
932#else
933#define INIT_TERM_DRIVER()	/* nothing */
934#endif
935
936typedef struct {
937    const char *name;
938    char *value;
939} ITERATOR_VARS;
940
941/*
942 * Global data which is not specific to a screen.
943 */
944typedef struct {
945	SIG_ATOMIC_T	have_sigtstp;
946	SIG_ATOMIC_T	have_sigwinch;
947	SIG_ATOMIC_T	cleanup_nested;
948
949	bool		init_signals;
950	bool		init_screen;
951
952	char		*comp_sourcename;
953	char		*comp_termtype;
954
955	bool		have_tic_directory;
956	bool		keep_tic_directory;
957	const char	*tic_directory;
958
959	char		*dbi_list;
960	int		dbi_size;
961
962	char		*first_name;
963	char		**keyname_table;
964	int		init_keyname;
965
966	int		slk_format;
967
968	int		getstr_limit;	/* getstr_limit based on POSIX LINE_MAX */
969
970	char		*safeprint_buf;
971	size_t		safeprint_used;
972
973	TGETENT_CACHE	tgetent_cache[TGETENT_MAX];
974	int		tgetent_index;
975	long		tgetent_sequence;
976
977	char		*dbd_blob;	/* string-heap for dbd_list[] */
978	char		**dbd_list;	/* distinct places to look for data */
979	int		dbd_size;	/* length of dbd_list[] */
980	time_t		dbd_time;	/* cache last updated */
981	ITERATOR_VARS	dbd_vars[dbdLAST];
982
983#if HAVE_TSEARCH
984	void		*cached_tparm;
985	int		count_tparm;
986#endif /* HAVE_TSEARCH */
987
988#ifdef USE_TERM_DRIVER
989	int		(*term_driver)(struct DriverTCB*, const char*, int*);
990#endif
991
992#ifndef USE_SP_WINDOWLIST
993	WINDOWLIST	*_nc_windowlist;
994#define WindowList(sp)	_nc_globals._nc_windowlist
995#endif
996
997#if USE_HOME_TERMINFO
998	char		*home_terminfo;
999#endif
1000
1001#if !USE_SAFE_SPRINTF
1002	int		safeprint_cols;
1003	int		safeprint_rows;
1004#endif
1005
1006#ifdef USE_PTHREADS
1007	pthread_mutex_t	mutex_curses;
1008	pthread_mutex_t	mutex_prescreen;
1009	pthread_mutex_t	mutex_screen;
1010	pthread_mutex_t	mutex_update;
1011	pthread_mutex_t	mutex_tst_tracef;
1012	pthread_mutex_t	mutex_tracef;
1013	int		nested_tracef;
1014	int		use_pthreads;
1015#define _nc_use_pthreads	_nc_globals.use_pthreads
1016#if USE_PTHREADS_EINTR
1017	pthread_t	read_thread;		/* The reading thread */
1018#endif
1019#endif
1020#if USE_WIDEC_SUPPORT
1021	char		key_name[MB_LEN_MAX + 1];
1022#endif
1023
1024#ifdef TRACE
1025	bool		trace_opened;
1026	char		trace_fname[PATH_MAX];
1027	int		trace_level;
1028	FILE		*trace_fp;
1029	int		trace_fd;
1030
1031	char		*tracearg_buf;
1032	size_t		tracearg_used;
1033
1034	TRACEBUF	*tracebuf_ptr;
1035	size_t		tracebuf_used;
1036
1037	char		tracechr_buf[40];
1038
1039	char		*tracedmp_buf;
1040	size_t		tracedmp_used;
1041
1042	unsigned char	*tracetry_buf;
1043	size_t		tracetry_used;
1044
1045	char		traceatr_color_buf[2][80];
1046	int		traceatr_color_sel;
1047	int		traceatr_color_last;
1048#if !defined(USE_PTHREADS) && USE_REENTRANT
1049	int		nested_tracef;
1050#endif
1051#endif	/* TRACE */
1052
1053#if NO_LEAKS
1054	bool		leak_checking;
1055#endif
1056} NCURSES_GLOBALS;
1057
1058extern NCURSES_EXPORT_VAR(NCURSES_GLOBALS) _nc_globals;
1059
1060#define N_RIPS 5
1061
1062/* The limit reserves one byte for a terminating NUL */
1063#define my_getstr_limit	(_nc_globals.getstr_limit - 1)
1064#define _nc_getstr_limit(n) \
1065	(((n) < 0) \
1066	 ? my_getstr_limit \
1067	 : (((n) > my_getstr_limit) \
1068	    ? my_getstr_limit \
1069	    : (n)))
1070
1071#ifdef USE_PTHREADS
1072typedef struct _prescreen_list {
1073	struct _prescreen_list *next;
1074	pthread_t id;
1075	struct screen *sp;
1076} PRESCREEN_LIST;
1077#endif
1078
1079/*
1080 * Global data which can be swept up into a SCREEN when one is created.
1081 * It may be modified before the next SCREEN is created.
1082 */
1083typedef struct {
1084#ifdef USE_PTHREADS
1085	PRESCREEN_LIST *allocated;
1086#else
1087	struct screen * allocated;
1088#endif
1089	bool		use_env;
1090	bool		filter_mode;
1091	attr_t		previous_attr;
1092	TPARM_STATE	tparm_state;
1093	TTY		*saved_tty;	/* savetty/resetty information	    */
1094	bool		use_tioctl;
1095	NCURSES_SP_OUTC	_outch;		/* output handler if not putc */
1096#ifndef USE_SP_RIPOFF
1097	ripoff_t	rippedoff[N_RIPS];
1098	ripoff_t	*rsp;
1099#endif
1100#if NCURSES_NO_PADDING
1101	bool		_no_padding;	/* flag to set if padding disabled  */
1102#endif
1103#if BROKEN_LINKER || USE_REENTRANT
1104	chtype		*real_acs_map;
1105	int		_LINES;
1106	int		_COLS;
1107	int		_TABSIZE;
1108	int		_ESCDELAY;
1109	TERMINAL	*_cur_term;
1110#endif
1111#ifdef TRACE
1112#if BROKEN_LINKER || USE_REENTRANT
1113	long		_outchars;
1114	const char	*_tputs_trace;
1115#endif
1116#endif
1117} NCURSES_PRESCREEN;
1118
1119/*
1120 * Use screen-specific ripoff data (for softkeys) rather than global.
1121 */
1122#ifdef USE_SP_RIPOFF
1123#define safe_ripoff_sp     (sp)->rsp
1124#define safe_ripoff_stack  (sp)->rippedoff
1125#else
1126#define safe_ripoff_sp	   _nc_prescreen.rsp
1127#define safe_ripoff_stack  _nc_prescreen.rippedoff
1128#endif
1129
1130extern NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen;
1131
1132typedef enum {
1133    ewInitial = 0,
1134    ewRunning,
1135    ewSuspend
1136} ENDWIN;
1137
1138/*
1139 * The SCREEN structure.
1140 */
1141
1142struct screen {
1143	int		_ifd;		/* input file descriptor for screen */
1144	int		_ofd;		/* output file descriptor for screen */
1145	FILE		*_ofp;		/* output file ptr for screen	    */
1146	char		*out_buffer;	/* output buffer		    */
1147	size_t		out_limit;	/* output buffer size		    */
1148	size_t		out_inuse;	/* output buffer current use	    */
1149	bool		_filtered;	/* filter() was called		    */
1150	bool		_prescreen;	/* is in prescreen phase	    */
1151	bool		_use_env;	/* LINES & COLS from environment?   */
1152	int		_checkfd;	/* filedesc for typeahead check	    */
1153	TERMINAL	*_term;		/* terminal type information	    */
1154	TTY		_saved_tty;	/* savetty/resetty information	    */
1155	NCURSES_SIZE_T	_lines;		/* screen lines			    */
1156	NCURSES_SIZE_T	_columns;	/* screen columns		    */
1157
1158	NCURSES_SIZE_T	_lines_avail;	/* lines available for stdscr	    */
1159	NCURSES_SIZE_T	_topstolen;	/* lines stolen from top	    */
1160
1161	WINDOW		*_curscr;	/* current screen		    */
1162	WINDOW		*_newscr;	/* virtual screen to be updated to  */
1163	WINDOW		*_stdscr;	/* screen's full-window context	    */
1164
1165#define CurScreen(sp)  (sp)->_curscr
1166#define NewScreen(sp)  (sp)->_newscr
1167#define StdScreen(sp)  (sp)->_stdscr
1168
1169	TRIES		*_keytry;	/* "Try" for use with keypad mode   */
1170	TRIES		*_key_ok;	/* Disabled keys via keyok(,FALSE)  */
1171	bool		_tried;		/* keypad mode was initialized	    */
1172	bool		_keypad_on;	/* keypad mode is currently on	    */
1173
1174	bool		_called_wgetch;	/* check for recursion in wgetch()  */
1175	int		_fifo[FIFO_SIZE];	/* input push-back buffer   */
1176	short		_fifohead,	/* head of fifo queue		    */
1177			_fifotail,	/* tail of fifo queue		    */
1178			_fifopeek,	/* where to peek for next char	    */
1179			_fifohold;	/* set if breakout marked	    */
1180
1181	int		_endwin;	/* are we out of window mode?	    */
1182	NCURSES_CH_T	*_current_attr; /* holds current attributes set	    */
1183	int		_coloron;	/* is color enabled?		    */
1184	int		_color_defs;	/* are colors modified		    */
1185	int		_cursor;	/* visibility of the cursor	    */
1186	int		_cursrow;	/* physical cursor row		    */
1187	int		_curscol;	/* physical cursor column	    */
1188	bool		_notty;		/* true if we cannot switch non-tty */
1189	int		_nl;		/* True if NL -> CR/NL is on	    */
1190	int		_raw;		/* True if in raw mode		    */
1191	int		_cbreak;	/* 1 if in cbreak mode		    */
1192					/* > 1 if in halfdelay mode	    */
1193	int		_echo;		/* True if echo on		    */
1194	int		_use_meta;	/* use the meta key?		    */
1195	struct _SLK	*_slk;		/* ptr to soft key struct / NULL    */
1196	int		slk_format;	/* selected format for this screen  */
1197	/* cursor movement costs; units are 10ths of milliseconds */
1198	int		_char_padding;	/* cost of character put	    */
1199	int		_cr_cost;	/* cost of (carriage_return)	    */
1200	int		_cup_cost;	/* cost of (cursor_address)	    */
1201	int		_home_cost;	/* cost of (cursor_home)	    */
1202	int		_ll_cost;	/* cost of (cursor_to_ll)	    */
1203	int		_cub1_cost;	/* cost of (cursor_left)	    */
1204	int		_cuf1_cost;	/* cost of (cursor_right)	    */
1205	int		_cud1_cost;	/* cost of (cursor_down)	    */
1206	int		_cuu1_cost;	/* cost of (cursor_up)		    */
1207	int		_cub_cost;	/* cost of (parm_cursor_left)	    */
1208	int		_cuf_cost;	/* cost of (parm_cursor_right)	    */
1209	int		_cud_cost;	/* cost of (parm_cursor_down)	    */
1210	int		_cuu_cost;	/* cost of (parm_cursor_up)	    */
1211	int		_hpa_cost;	/* cost of (column_address)	    */
1212	int		_vpa_cost;	/* cost of (row_address)	    */
1213	/* used in tty_update.c, must be chars */
1214	int		_ed_cost;	/* cost of (clr_eos)		    */
1215	int		_el_cost;	/* cost of (clr_eol)		    */
1216	int		_el1_cost;	/* cost of (clr_bol)		    */
1217	int		_dch1_cost;	/* cost of (delete_character)	    */
1218	int		_ich1_cost;	/* cost of (insert_character)	    */
1219	int		_dch_cost;	/* cost of (parm_dch)		    */
1220	int		_ich_cost;	/* cost of (parm_ich)		    */
1221	int		_ech_cost;	/* cost of (erase_chars)	    */
1222	int		_rep_cost;	/* cost of (repeat_char)	    */
1223	int		_hpa_ch_cost;	/* cost of (column_address)	    */
1224	int		_cup_ch_cost;	/* cost of (cursor_address)	    */
1225	int		_cuf_ch_cost;	/* cost of (parm_cursor_right)	    */
1226	int		_inline_cost;	/* cost of inline-move		    */
1227	int		_smir_cost;	/* cost of (enter_insert_mode)	    */
1228	int		_rmir_cost;	/* cost of (exit_insert_mode)	    */
1229	int		_ip_cost;	/* cost of (insert_padding)	    */
1230	/* used in lib_mvcur.c */
1231	char *		_address_cursor;
1232	/* used in tty_update.c */
1233	int		_scrolling;	/* 1 if terminal's smart enough to  */
1234
1235	/* used in lib_color.c */
1236	rgb_bits_t	_direct_color;	/* RGB overrides color-table	     */
1237	color_t		*_color_table;	/* screen's color palette	     */
1238	int		_color_count;	/* count of colors in palette	     */
1239	colorpair_t	*_color_pairs;	/* screen's color pair list	     */
1240	int		_pair_count;	/* same as COLOR_PAIRS               */
1241	int		_pair_limit;	/* actual limit of color-pairs       */
1242	int		_pair_alloc;	/* current table-size of color-pairs */
1243	chtype		_ok_attributes; /* valid attributes for terminal     */
1244	chtype		_xmc_suppress;	/* attributes to suppress if xmc     */
1245	chtype		_xmc_triggers;	/* attributes to process if xmc	     */
1246	chtype *	_acs_map;	/* the real alternate-charset map    */
1247	bool *		_screen_acs_map;
1248
1249
1250	/* used in lib_vidattr.c */
1251	bool		_use_rmso;	/* true if we may use 'rmso'	     */
1252	bool		_use_rmul;	/* true if we may use 'rmul'	     */
1253
1254	/*
1255	 * These data correspond to the state of the idcok() and idlok()
1256	 * functions.  A caveat is in order here:  the XSI and SVr4
1257	 * documentation specify that these functions apply to the window which
1258	 * is given as an argument.  However, ncurses implements this logic
1259	 * only for the newscr/curscr update process, _not_ per-window.
1260	 */
1261	bool		_nc_sp_idlok;
1262	bool		_nc_sp_idcok;
1263
1264	/*
1265	 * These are the data that support the mouse interface.
1266	 */
1267	bool		_mouse_initialized;
1268	MouseType	_mouse_type;
1269	int		_maxclick;
1270	bool		(*_mouse_event) (SCREEN *);
1271	bool		(*_mouse_inline)(SCREEN *);
1272	bool		(*_mouse_parse) (SCREEN *, int);
1273	void		(*_mouse_resume)(SCREEN *);
1274	void		(*_mouse_wrap)	(SCREEN *);
1275	int		_mouse_fd;	/* file-descriptor, if any */
1276	bool		_mouse_active;	/* true if initialized */
1277	mmask_t		_mouse_mask;	/* set via mousemask() */
1278	mmask_t		_mouse_mask2;	/* OR's in press/release bits */
1279	mmask_t		_mouse_bstate;
1280	MouseFormat	_mouse_format;	/* type of xterm mouse protocol */
1281	NCURSES_CONST char *_mouse_xtermcap; /* string to enable/disable mouse */
1282	MEVENT		_mouse_events[EV_MAX];	/* hold the last mouse event seen */
1283	MEVENT		*_mouse_eventp;	/* next free slot in event queue */
1284
1285	/*
1286	 * These are data that support the proper handling of the panel stack on an
1287	 * per screen basis.
1288	 */
1289	struct panelhook _panelHook;
1290
1291	bool		_sig_winch;
1292	SCREEN		*_next_screen;
1293
1294	/* hashes for old and new lines */
1295	unsigned long	*oldhash, *newhash;
1296	HASHMAP		*hashtab;
1297	int		hashtab_len;
1298	int		*_oldnum_list;
1299	int		_oldnum_size;
1300
1301	NCURSES_SP_OUTC	_outch;		/* output handler if not putc */
1302	NCURSES_OUTC	jump;
1303
1304	ripoff_t	rippedoff[N_RIPS];
1305	ripoff_t	*rsp;
1306
1307	int		_legacy_coding;	/* see use_legacy_coding() */
1308
1309#if NCURSES_NO_PADDING
1310	bool		_no_padding;	/* flag to set if padding disabled  */
1311#endif
1312
1313#if USE_HARD_TABS
1314	int		_ht_cost;	/* cost of (tab)		    */
1315	int		_cbt_cost;	/* cost of (backtab)		    */
1316#endif /* USE_HARD_TABS */
1317
1318	/* used in lib_vidattr.c */
1319#if USE_ITALIC
1320	bool		_use_ritm;	/* true if we may use 'ritm'	     */
1321#endif
1322
1323	/* used in getch/twait */
1324#if USE_KLIBC_KBD
1325	bool		_extended_key;	/* true if an extended key	     */
1326#endif
1327
1328	/* used in lib_color.c */
1329#if NCURSES_EXT_FUNCS
1330	bool		_assumed_color; /* use assumed colors		     */
1331	bool		_default_color; /* use default colors		     */
1332	bool		_has_sgr_39_49; /* has ECMA default color support    */
1333	int		_default_fg;	/* assumed default foreground	     */
1334	int		_default_bg;	/* assumed default background	     */
1335	int		_default_pairs;	/* count pairs using default color   */
1336#endif
1337
1338	/* system-dependent mouse data */
1339#if USE_GPM_SUPPORT
1340	bool		_mouse_gpm_loaded;
1341	bool		_mouse_gpm_found;
1342#ifdef HAVE_LIBDL
1343	void		*_dlopen_gpm;
1344	TYPE_gpm_fd	_mouse_gpm_fd;
1345	TYPE_Gpm_Open	_mouse_Gpm_Open;
1346	TYPE_Gpm_Close	_mouse_Gpm_Close;
1347	TYPE_Gpm_GetEvent _mouse_Gpm_GetEvent;
1348#endif
1349	Gpm_Connect	_mouse_gpm_connect;
1350#endif /* USE_GPM_SUPPORT */
1351
1352#if USE_EMX_MOUSE
1353	int		_emxmouse_wfd;
1354	int		_emxmouse_thread;
1355	int		_emxmouse_activated;
1356	char		_emxmouse_buttons[4];
1357#endif
1358
1359#if USE_SYSMOUSE
1360	MEVENT		_sysmouse_fifo[FIFO_SIZE];
1361	int		_sysmouse_head;
1362	int		_sysmouse_tail;
1363	int		_sysmouse_char_width;	/* character width */
1364	int		_sysmouse_char_height;	/* character height */
1365	int		_sysmouse_old_buttons;
1366	int		_sysmouse_new_buttons;
1367#endif
1368
1369#if defined(USE_TERM_DRIVER) || defined(EXP_WIN32_DRIVER)
1370	MEVENT		_drv_mouse_fifo[FIFO_SIZE];
1371	int		_drv_mouse_head;
1372	int		_drv_mouse_tail;
1373	int		_drv_mouse_old_buttons;
1374	int		_drv_mouse_new_buttons;
1375#endif
1376	/*
1377	 * This supports automatic resizing
1378	 */
1379#if USE_SIZECHANGE
1380	int		(*_resize)(NCURSES_SP_DCLx int y, int x);
1381	int		(*_ungetch)(SCREEN *, int);
1382#endif
1383
1384#ifdef USE_SP_WINDOWLIST
1385	WINDOWLIST*	_windowlist;
1386#define WindowList(sp)  (sp)->_windowlist
1387#endif
1388
1389#if USE_REENTRANT
1390	char		_ttytype[NAMESIZE];
1391	int		_ESCDELAY;
1392	int		_TABSIZE;
1393	int		_LINES;
1394	int		_COLS;
1395#endif
1396
1397#if NCURSES_SP_FUNCS
1398	bool		use_tioctl;
1399#endif
1400
1401	/*
1402	 * ncurses/ncursesw are the same up to this point.
1403	 */
1404#if USE_WIDEC_SUPPORT
1405	/* recent versions of 'screen' have partially-working support for
1406	 * UTF-8, but do not permit ACS at the same time (see tty_update.c).
1407	 */
1408	bool		_screen_acs_fix;
1409	bool		_screen_unicode;
1410#endif
1411
1412#if NCURSES_EXT_FUNCS && NCURSES_EXT_COLORS
1413	void		*_ordered_pairs; /* index used by alloc_pair()	     */
1414	int		_pairs_used;	/* actual number of color-pairs used */
1415	int		_recent_pair;	/* number for most recent free-pair  */
1416#endif
1417
1418#ifdef TRACE
1419	char		tracechr_buf[40];
1420	char		tracemse_buf[TRACEMSE_MAX];
1421#if USE_REENTRANT
1422	long		_outchars;
1423	const char	*_tputs_trace;
1424#endif
1425#endif
1426};
1427
1428extern NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain;
1429extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
1430
1431	WINDOWLIST {
1432	WINDOWLIST *next;
1433	SCREEN *screen;		/* screen containing the window */
1434	WINDOW	win;		/* WINDOW_EXT() needs to account for offset */
1435#if NCURSES_WIDECHAR
1436	char addch_work[(MB_LEN_MAX * 9) + 1];
1437	unsigned addch_used;	/* number of bytes in addch_work[] */
1438	int addch_x;		/* x-position for addch_work[] */
1439	int addch_y;		/* y-position for addch_work[] */
1440#endif
1441};
1442
1443#define WINDOW_EXT(w,m) (((WINDOWLIST *)((void *)((char *)(w) - offsetof(WINDOWLIST, win))))->m)
1444
1445#ifdef USE_SP_WINDOWLIST
1446#define SP_INIT_WINDOWLIST(sp)	WindowList(sp) = 0
1447#else
1448#define SP_INIT_WINDOWLIST(sp)	/* nothing */
1449#endif
1450
1451#define SP_PRE_INIT(sp)                         \
1452    sp->_cursrow = -1;                          \
1453    sp->_curscol = -1;                          \
1454    sp->_nl = TRUE;                             \
1455    sp->_raw = FALSE;                           \
1456    sp->_cbreak = 0;                            \
1457    sp->_echo = TRUE;                           \
1458    sp->_fifohead = -1;                         \
1459    sp->_endwin = ewSuspend;                    \
1460    sp->_cursor = -1;                           \
1461    SP_INIT_WINDOWLIST(sp);                     \
1462    sp->_outch = NCURSES_OUTC_FUNC;             \
1463    sp->jump = 0                                \
1464
1465/* usually in <limits.h> */
1466#ifndef UCHAR_MAX
1467#define UCHAR_MAX 255
1468#endif
1469
1470/* The terminfo source is assumed to be 7-bit ASCII */
1471#define is7bits(c)	((unsigned)(c) < 128)
1472
1473/* Checks for isprint() should be done on 8-bit characters (non-wide) */
1474#define is8bits(c)	((unsigned)(c) <= UCHAR_MAX)
1475
1476#ifndef min
1477#define min(a,b)	((a) > (b)  ?  (b)  :  (a))
1478#endif
1479
1480#ifndef max
1481#define max(a,b)	((a) < (b)  ?  (b)  :  (a))
1482#endif
1483
1484/* usually in <unistd.h> */
1485#ifndef STDIN_FILENO
1486#define STDIN_FILENO 0
1487#endif
1488
1489#ifndef STDOUT_FILENO
1490#define STDOUT_FILENO 1
1491#endif
1492
1493#ifndef STDERR_FILENO
1494#define STDERR_FILENO 2
1495#endif
1496
1497#ifndef EXIT_SUCCESS
1498#define EXIT_SUCCESS 0
1499#endif
1500
1501#ifndef EXIT_FAILURE
1502#define EXIT_FAILURE 1
1503#endif
1504
1505#ifndef R_OK
1506#define	R_OK	4		/* Test for read permission.  */
1507#endif
1508#ifndef W_OK
1509#define	W_OK	2		/* Test for write permission.  */
1510#endif
1511#ifndef X_OK
1512#define	X_OK	1		/* Test for execute permission.  */
1513#endif
1514#ifndef F_OK
1515#define	F_OK	0		/* Test for existence.  */
1516#endif
1517
1518#if HAVE_FCNTL_H
1519#include <fcntl.h>		/* may define O_BINARY	*/
1520#endif
1521
1522#ifndef O_BINARY
1523#define O_BINARY 0
1524#endif
1525
1526#ifdef TRACE
1527#if USE_REENTRANT
1528#define COUNT_OUTCHARS(n) _nc_count_outchars(n);
1529#else
1530#define COUNT_OUTCHARS(n) _nc_outchars += (n);
1531#endif
1532#else
1533#define COUNT_OUTCHARS(n) /* nothing */
1534#endif
1535
1536#define RESET_OUTCHARS() COUNT_OUTCHARS(-_nc_outchars)
1537
1538#define UChar(c)	((unsigned char)(c))
1539#define UShort(c)	((unsigned short)(c))
1540#define ChCharOf(c)	((chtype)(c) & (chtype)A_CHARTEXT)
1541#define ChAttrOf(c)	((chtype)(c) & (chtype)A_ATTRIBUTES)
1542
1543#define TR_PUTC(c)	TR(TRACE_CHARPUT, ("PUTC %#x", UChar(c)))
1544
1545#ifndef MB_LEN_MAX
1546#define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */
1547#endif
1548
1549#if USE_WIDEC_SUPPORT /* { */
1550#define isEILSEQ(status) (((size_t)status == (size_t)-1) && (errno == EILSEQ))
1551
1552#define init_mb(state)	memset(&state, 0, sizeof(state))
1553
1554#if NCURSES_EXT_COLORS
1555#define NulColor	, 0
1556#else
1557#define NulColor	/* nothing */
1558#endif
1559
1560#define NulChar		0,0,0,0	/* FIXME: see CCHARW_MAX */
1561#define CharOf(c)	((c).chars[0])
1562#define AttrOf(c)	((c).attr)
1563
1564#define AddAttr(c,a)	AttrOf(c) |=  ((a) & A_ATTRIBUTES)
1565#define RemAttr(c,a)	AttrOf(c) &= ~((a) & A_ATTRIBUTES)
1566#define SetAttr(c,a)	AttrOf(c) =   ((a) & A_ATTRIBUTES) | WidecExt(c)
1567
1568#define NewChar2(c,a)	{ a, { c, NulChar } NulColor }
1569#define NewChar(ch)	NewChar2(ChCharOf(ch), ChAttrOf(ch))
1570
1571#if CCHARW_MAX == 5
1572#define CharEq(a,b)	(((a).attr == (b).attr) \
1573		       && (a).chars[0] == (b).chars[0] \
1574		       && (a).chars[1] == (b).chars[1] \
1575		       && (a).chars[2] == (b).chars[2] \
1576		       && (a).chars[3] == (b).chars[3] \
1577		       && (a).chars[4] == (b).chars[4] \
1578			if_EXT_COLORS(&& (a).ext_color == (b).ext_color))
1579#elif CCHARW_MAX > 0
1580#error Inconsistent values for CCHARW_MAX
1581#else
1582#define CharEq(a,b)	(!memcmp(&(a), &(b), sizeof(a)))
1583#endif
1584
1585#define SetChar(ch,c,a) do {							    \
1586			    NCURSES_CH_T *_cp = &ch;				    \
1587			    memset(_cp, 0, sizeof(ch));				    \
1588			    _cp->chars[0] = (wchar_t) (c);			    \
1589			    _cp->attr = (a);					    \
1590			    if_EXT_COLORS(SetPair(ch, PairNumber(a)));		    \
1591			} while (0)
1592#define CHREF(wch)	(&wch)
1593#define CHDEREF(wch)	(*wch)
1594#define ARG_CH_T	NCURSES_CH_T *
1595#define CARG_CH_T	const NCURSES_CH_T *
1596#define PUTC_DATA	char PUTC_buf[MB_LEN_MAX]; int PUTC_i, PUTC_n; \
1597			mbstate_t PUT_st; wchar_t PUTC_ch
1598#define PUTC_INIT	init_mb (PUT_st)
1599#define PUTC(ch)	do { if(!isWidecExt(ch)) {				    \
1600			if (Charable(ch)) {					    \
1601			    TR_PUTC(CharOf(ch));				    \
1602			    NCURSES_OUTC_FUNC (NCURSES_SP_ARGx CharOf(ch));	    \
1603			    COUNT_OUTCHARS(1);					    \
1604			} else {						    \
1605			    for (PUTC_i = 0; PUTC_i < CCHARW_MAX; ++PUTC_i) {	    \
1606				PUTC_ch = (ch).chars[PUTC_i];			    \
1607				if (PUTC_ch == L'\0')				    \
1608				    break;					    \
1609				PUTC_INIT;					    \
1610				PUTC_n = (int) wcrtomb(PUTC_buf,		    \
1611						       (ch).chars[PUTC_i], &PUT_st); \
1612				if (PUTC_n <= 0) {				    \
1613				    if (PUTC_ch && is8bits(PUTC_ch) && PUTC_i == 0) { \
1614					TR_PUTC(CharOf(ch));			    \
1615					NCURSES_OUTC_FUNC (NCURSES_SP_ARGx CharOf(ch)); \
1616				    }						    \
1617				    break;					    \
1618				} else {					    \
1619				    int PUTC_j;					    \
1620				    for (PUTC_j = 0; PUTC_j < PUTC_n; ++PUTC_j) {   \
1621					TR_PUTC(PUTC_buf[PUTC_j]);		    \
1622					NCURSES_OUTC_FUNC (NCURSES_SP_ARGx PUTC_buf[PUTC_j]); \
1623				    }						    \
1624				}						    \
1625			    }							    \
1626			    COUNT_OUTCHARS(PUTC_i);				    \
1627			} } } while (0)
1628
1629#define BLANK		NewChar2(' ', WA_NORMAL)
1630#define ZEROS		NewChar2('\0', WA_NORMAL)
1631#define ISBLANK(ch)	((ch).chars[0] == L' ' && (ch).chars[1] == L'\0')
1632
1633	/*
1634	 * Wide characters cannot be represented in the A_CHARTEXT mask of
1635	 * attr_t's but an application might have set a narrow character there.
1636	 * But even in that case, it would only be a printable character, or
1637	 * zero.  Otherwise we can use those bits to tell if a cell is the
1638	 * first or extension part of a wide character.
1639	 */
1640#define WidecExt(ch)	(int) (AttrOf(ch) & A_CHARTEXT)
1641#define isWidecBase(ch)	(WidecExt(ch) == 1)
1642#define isWidecExt(ch)	(WidecExt(ch) > 1 && WidecExt(ch) < 32)
1643#define SetWidecExt(dst, ext)	AttrOf(dst) &= ~A_CHARTEXT,		\
1644				AttrOf(dst) |= (attr_t) (ext + 1)
1645
1646#define if_WIDEC(code)  code
1647#define Charable(ch)	(((SP_PARM->_legacy_coding)			\
1648			 || (AttrOf(ch) & A_ALTCHARSET)			\
1649			 || (!isWidecExt(ch))) &&			\
1650			     (ch).chars[1] == L'\0' &&			\
1651			     _nc_is_charable(CharOf(ch)))
1652
1653#define L(ch)		L ## ch
1654#else /* }{ */
1655#define CharOf(c)	ChCharOf(c)
1656#define AttrOf(c)	ChAttrOf(c)
1657#define AddAttr(c,a)	c |= (a)
1658#define RemAttr(c,a)	c &= ~((a) & A_ATTRIBUTES)
1659#define SetAttr(c,a)	c = ((c) & ~A_ATTRIBUTES) | (a)
1660#define NewChar(ch)	(ch)
1661#define NewChar2(c,a)	((c) | (a))
1662#define CharEq(a,b)	((a) == (b))
1663#define SetChar(ch,c,a)	ch = (c) | (a)
1664#define CHREF(wch)	wch
1665#define CHDEREF(wch)	wch
1666#define ARG_CH_T	NCURSES_CH_T
1667#define CARG_CH_T	NCURSES_CH_T
1668#define PUTC_DATA	/* nothing */
1669#define PUTC(ch)	{ \
1670			    TR_PUTC(ch); \
1671			    NCURSES_OUTC_FUNC (NCURSES_SP_ARGx (int) ch); \
1672			}
1673
1674#define BLANK		(' '|A_NORMAL)
1675#define ZEROS		('\0'|A_NORMAL)
1676#define ISBLANK(ch)	(CharOf(ch) == ' ')
1677
1678#define isWidecExt(ch)	(0)
1679#define if_WIDEC(code) /* nothing */
1680
1681#define Charable(ch)	((ch) >= ' ' && (ch) <= '~')
1682#define L(ch)		ch
1683#endif /* } */
1684
1685#define AttrOfD(ch)	AttrOf(CHDEREF(ch))
1686#define CharOfD(ch)	CharOf(CHDEREF(ch))
1687#define SetChar2(wch,ch)    SetChar(wch,ChCharOf(ch),ChAttrOf(ch))
1688
1689#define BLANK_ATTR	A_NORMAL
1690#define BLANK_TEXT	L(' ')
1691
1692#define CHANGED     -1
1693
1694#define LEGALYX(w, y, x) \
1695	      ((w) != 0 && \
1696		((x) >= 0 && (x) <= (w)->_maxx && \
1697		 (y) >= 0 && (y) <= (w)->_maxy))
1698
1699#define CHANGED_CELL(line,col) \
1700	if (line->firstchar == _NOCHANGE) \
1701		line->firstchar = line->lastchar = (NCURSES_SIZE_T) (col); \
1702	else if ((col) < line->firstchar) \
1703		line->firstchar = (NCURSES_SIZE_T) (col); \
1704	else if ((col) > line->lastchar) \
1705		line->lastchar = (NCURSES_SIZE_T) (col)
1706
1707#define CHANGED_RANGE(line,start,end) \
1708	if (line->firstchar == _NOCHANGE \
1709	 || line->firstchar > (start)) \
1710		line->firstchar = (NCURSES_SIZE_T) (start); \
1711	if (line->lastchar == _NOCHANGE \
1712	 || line->lastchar < (end)) \
1713		line->lastchar = (NCURSES_SIZE_T) (end)
1714
1715#define CHANGED_TO_EOL(line,start,end) \
1716	if (line->firstchar == _NOCHANGE \
1717	 || line->firstchar > (start)) \
1718		line->firstchar = (NCURSES_SIZE_T) (start); \
1719	line->lastchar = (NCURSES_SIZE_T) (end)
1720
1721#define SIZEOF(v) (sizeof(v)/sizeof(v[0]))
1722
1723#define FreeIfNeeded(p)  if ((p) != 0) free(p)
1724
1725/* FreeAndNull() is not a comma-separated expression because some compilers
1726 * do not accept a mixture of void with values.
1727 */
1728#define FreeAndNull(p)   do { free(p); p = 0; } while (0)
1729
1730#include <nc_alloc.h>
1731
1732/*
1733 * Use these for tic/infocmp malloc failures.  Generally the ncurses library
1734 * tries to limp along after a failure.
1735 */
1736#define TYPE_MALLOC(type, size, name) \
1737	do { \
1738	    name = typeMalloc(type, size); \
1739	    if (name == 0) \
1740		_nc_err_abort(MSG_NO_MEMORY); \
1741	} while (0)
1742
1743#define TYPE_REALLOC(type, size, name) \
1744	do { \
1745	    name = typeRealloc(type, size, name); \
1746	    if (name == 0) \
1747		_nc_err_abort(MSG_NO_MEMORY); \
1748	} while (0)
1749
1750/*
1751 * TTY bit definition for converting tabs to spaces.
1752 */
1753#ifdef TAB3
1754# define OFLAGS_TABS TAB3	/* POSIX specifies TAB3 */
1755#else
1756# ifdef XTABS
1757#  define OFLAGS_TABS XTABS	/* XTABS is usually the "same" */
1758# else
1759#  ifdef OXTABS
1760#   define OFLAGS_TABS OXTABS	/* the traditional BSD equivalent */
1761#  else
1762#   define OFLAGS_TABS 0
1763#  endif
1764# endif
1765#endif
1766
1767#ifdef __TANDEM
1768#define ROOT_UID 65535
1769#endif
1770
1771#ifndef ROOT_UID
1772#define ROOT_UID 0
1773#endif
1774
1775/*
1776 * Standardize/simplify common loops
1777 */
1778#define each_screen(p) p = _nc_screen_chain; p != 0; p = (p)->_next_screen
1779#define each_window(sp,p) p = WindowList(sp); p != 0; p = (p)->next
1780#define each_ripoff(p) p = safe_ripoff_stack; (p - safe_ripoff_stack) < N_RIPS; ++p
1781
1782/*
1783 * Prefixes for call/return points of library function traces.  We use these to
1784 * instrument the public functions so that the traces can be easily transformed
1785 * into regression scripts.
1786 */
1787#define T_CALLED(fmt) "called {" fmt
1788#define T_CREATE(fmt) "create :" fmt
1789#define T_RETURN(fmt) "return }" fmt
1790
1791#define NonNull(s)              ((s) != 0 ? s : "<null>")
1792#define NonEmpty(s)             ((s) != 0 && *(s) != '\0')
1793
1794#ifdef TRACE
1795
1796#if USE_REENTRANT
1797#define TPUTS_TRACE(s)	_nc_set_tputs_trace(s);
1798#else
1799#define TPUTS_TRACE(s)	_nc_tputs_trace = s;
1800#endif
1801
1802#ifdef HAVE_CONSISTENT_GETENV
1803#define START_TRACE() \
1804	if ((_nc_tracing & TRACE_MAXIMUM) == 0) { \
1805	    int t = _nc_getenv_num("NCURSES_TRACE"); \
1806	    if (t >= 0) \
1807		curses_trace((unsigned) t); \
1808	}
1809#else
1810#define START_TRACE() /* nothing */
1811#endif
1812
1813/*
1814 * Many of the _tracef() calls use static buffers; lock the trace state before
1815 * trying to fill them.
1816 */
1817#if USE_REENTRANT
1818#define USE_TRACEF(mask) _nc_use_tracef(mask)
1819extern NCURSES_EXPORT(int)	_nc_use_tracef (unsigned);
1820extern NCURSES_EXPORT(void)	_nc_locked_tracef (const char *, ...) GCC_PRINTFLIKE(1,2);
1821#else
1822#define USE_TRACEF(mask) (_nc_tracing & (mask))
1823#define _nc_locked_tracef _tracef
1824#endif
1825
1826#define TR(n, a)	if (USE_TRACEF(n)) _nc_locked_tracef a
1827#define T(a)		TR(TRACE_CALLS, a)
1828#define TRACE_RETURN(value,type)     return _nc_retrace_##type((type)(value))
1829#define TRACE_RETURN1(value,dst)     return _nc_retrace_##dst(value)
1830#define TRACE_RETURN2(value,dst,src) return _nc_retrace_##dst##_##src(value)
1831#define TRACE_RETURN_SP(value,type)  return _nc_retrace_##type(SP_PARM, value)
1832
1833typedef void VoidFunc(void);
1834
1835#define TR_FUNC_LEN		((sizeof(void *) + sizeof(void (*)(void))) * 2 + 4)
1836#define TR_FUNC_BFR(max)	char tr_func_data[max][TR_FUNC_LEN]
1837#define TR_FUNC_ARG(num,func)	_nc_fmt_funcptr(&tr_func_data[num][0], (const char *)&(func), sizeof((func)))
1838
1839#define returnAttr(code)	TRACE_RETURN(code,attr_t)
1840#define returnBits(code)	TRACE_RETURN(code,unsigned)
1841#define returnBool(code)	TRACE_RETURN(code,bool)
1842#define returnCPtr(code)	TRACE_RETURN1(code,cptr)
1843#define returnCVoidPtr(code)	TRACE_RETURN1(code,cvoid_ptr)
1844#define returnChar(code)	TRACE_RETURN(code,char)
1845#define returnChtype(code)	TRACE_RETURN(code,chtype)
1846#define returnCode(code)	TRACE_RETURN(code,int)
1847#define returnIntAttr(code)	TRACE_RETURN2(code,int,attr_t)
1848#define returnMMask(code)	TRACE_RETURN_SP(code,mmask_t)
1849#define returnPtr(code)		TRACE_RETURN1(code,ptr)
1850#define returnSP(code)		TRACE_RETURN1(code,sp)
1851#define returnVoid		T((T_RETURN(""))); return
1852#define returnVoidPtr(code)	TRACE_RETURN1(code,void_ptr)
1853#define returnWin(code)		TRACE_RETURN1(code,win)
1854
1855#define returnDB(rc)		do { TR(TRACE_DATABASE,(T_RETURN("code %d"), (rc))); return (rc); } while (0)
1856
1857extern NCURSES_EXPORT(NCURSES_BOOL)     _nc_retrace_bool (int);
1858extern NCURSES_EXPORT(NCURSES_CONST void *) _nc_retrace_cvoid_ptr (NCURSES_CONST void *);
1859extern NCURSES_EXPORT(SCREEN *)         _nc_retrace_sp (SCREEN *);
1860extern NCURSES_EXPORT(WINDOW *)         _nc_retrace_win (WINDOW *);
1861extern NCURSES_EXPORT(attr_t)           _nc_retrace_attr_t (attr_t);
1862extern NCURSES_EXPORT(char *)           _nc_retrace_ptr (char *);
1863extern NCURSES_EXPORT(char *)           _nc_trace_ttymode(const TTY *tty);
1864extern NCURSES_EXPORT(char *)           _nc_varargs (const char *, va_list);
1865extern NCURSES_EXPORT(chtype)           _nc_retrace_chtype (chtype);
1866extern NCURSES_EXPORT(const char *)     _nc_altcharset_name(attr_t, chtype);
1867extern NCURSES_EXPORT(const char *)     _nc_retrace_cptr (const char *);
1868extern NCURSES_EXPORT(char)             _nc_retrace_char (int);
1869extern NCURSES_EXPORT(int)              _nc_retrace_int (int);
1870extern NCURSES_EXPORT(int)              _nc_retrace_int_attr_t (attr_t);
1871extern NCURSES_EXPORT(mmask_t)          _nc_retrace_mmask_t (SCREEN *, mmask_t);
1872extern NCURSES_EXPORT(unsigned)         _nc_retrace_unsigned (unsigned);
1873extern NCURSES_EXPORT(void *)           _nc_retrace_void_ptr (void *);
1874extern NCURSES_EXPORT(void)             _nc_fifo_dump (SCREEN *);
1875
1876extern NCURSES_EXPORT(char *)           _nc_fmt_funcptr(char *, const char *, size_t);
1877
1878#if USE_REENTRANT
1879NCURSES_WRAPPED_VAR(long, _nc_outchars);
1880NCURSES_WRAPPED_VAR(const char *, _nc_tputs_trace);
1881#define _nc_outchars       NCURSES_PUBLIC_VAR(_nc_outchars())
1882#define _nc_tputs_trace    NCURSES_PUBLIC_VAR(_nc_tputs_trace())
1883extern NCURSES_EXPORT(void)		_nc_set_tputs_trace (const char *);
1884extern NCURSES_EXPORT(void)		_nc_count_outchars (long);
1885#else
1886extern NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace;
1887extern NCURSES_EXPORT_VAR(long)         _nc_outchars;
1888#endif
1889
1890extern NCURSES_EXPORT_VAR(unsigned)     _nc_tracing;
1891
1892extern NCURSES_EXPORT(char *) _nc_tracebits (void);
1893extern NCURSES_EXPORT(char *) _tracemouse (const MEVENT *);
1894extern NCURSES_EXPORT(void) _tracedump (const char *, WINDOW *);
1895
1896#if USE_WIDEC_SUPPORT
1897extern NCURSES_EXPORT(const char *) _nc_viswbuf2 (int, const wchar_t *);
1898extern NCURSES_EXPORT(const char *) _nc_viswbufn (const wchar_t *, int);
1899#endif
1900
1901extern NCURSES_EXPORT(const char *) _nc_viscbuf2 (int, const NCURSES_CH_T *, int);
1902extern NCURSES_EXPORT(const char *) _nc_viscbuf (const NCURSES_CH_T *, int);
1903
1904#else /* !TRACE */
1905
1906#define START_TRACE() /* nothing */
1907
1908#define T(a)
1909#define TR(n, a)
1910#define TPUTS_TRACE(s)
1911#define TR_FUNC_BFR(max)
1912
1913#define returnAttr(code)	return code
1914#define returnBits(code)	return code
1915#define returnBool(code)	return code
1916#define returnCPtr(code)	return code
1917#define returnCVoidPtr(code)	return code
1918#define returnChar(code)	return ((char) code)
1919#define returnChtype(code)	return code
1920#define returnCode(code)	return code
1921#define returnIntAttr(code)	return code
1922#define returnMMask(code)	return code
1923#define returnPtr(code)		return code
1924#define returnSP(code)		return code
1925#define returnVoid		return
1926#define returnVoidPtr(code)	return code
1927#define returnWin(code)		return code
1928
1929#define returnDB(code)		return code
1930
1931#endif /* TRACE/!TRACE */
1932
1933/*
1934 * Workaround for defective implementation of gcc attribute warn_unused_result
1935 */
1936#if defined(__GNUC__) && defined(_FORTIFY_SOURCE)
1937#define IGNORE_RC(func) errno = (int) func
1938#else
1939#define IGNORE_RC(func) (void) func
1940#endif /* gcc workarounds */
1941
1942/*
1943 * Return-codes for tgetent() and friends.
1944 */
1945#define TGETENT_YES  1		/* entry is found */
1946#define TGETENT_NO   0		/* entry is not found */
1947#define TGETENT_ERR -1		/* an error occurred */
1948
1949extern NCURSES_EXPORT(const char *) _nc_visbuf2 (int, const char *);
1950extern NCURSES_EXPORT(const char *) _nc_visbufn (const char *, int);
1951
1952#define EMPTY_MODULE(name) \
1953extern	NCURSES_EXPORT(void) name (void); \
1954	NCURSES_EXPORT(void) name (void) { }
1955
1956#define ALL_BUT_COLOR ((chtype)~(A_COLOR))
1957#define NONBLANK_ATTR (A_BOLD | A_DIM | A_BLINK | A_ITALIC)
1958#define TPARM_ATTR    (A_STANDOUT | A_UNDERLINE | A_REVERSE | A_BLINK | A_DIM | A_BOLD | A_ALTCHARSET | A_INVIS | A_PROTECT)
1959#define XMC_CONFLICT  (A_STANDOUT | A_UNDERLINE | A_REVERSE | A_BLINK | A_DIM | A_BOLD | A_INVIS | A_PROTECT | A_ITALIC)
1960#define XMC_CHANGES(c) ((c) & SP_PARM->_xmc_suppress)
1961
1962#define toggle_attr_on(S,at) {\
1963   if (PairNumber(at) > 0) {\
1964      (S) = ((S) & ALL_BUT_COLOR) | (attr_t) (at);\
1965   } else {\
1966      (S) |= (attr_t) (at);\
1967   }\
1968   TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1969
1970
1971#define toggle_attr_off(S,at) {\
1972   if (PairNumber(at) > 0) {\
1973      (S) &= ~(at|A_COLOR);\
1974   } else {\
1975      (S) &= ~(at);\
1976   }\
1977   TR(TRACE_ATTRS, ("new attribute is %s", _traceattr((S))));}
1978
1979#define DelCharCost(sp,count) \
1980		((parm_dch != 0) \
1981		? sp->_dch_cost \
1982		: ((delete_character != 0) \
1983			? (sp->_dch1_cost * count) \
1984			: INFINITY))
1985
1986#define InsCharCost(sp,count) \
1987		((parm_ich != 0) \
1988		? sp->_ich_cost \
1989		: ((enter_insert_mode && exit_insert_mode) \
1990		  ? sp->_smir_cost + sp->_rmir_cost + (sp->_ip_cost * count) \
1991		  : ((insert_character != 0) \
1992		    ? ((sp->_ich1_cost + sp->_ip_cost) * count) \
1993		    : INFINITY)))
1994
1995#if USE_XMC_SUPPORT
1996#define UpdateAttrs(sp,c) if (!SameAttrOf(SCREEN_ATTRS(sp), c)) { \
1997				attr_t chg = AttrOf(SCREEN_ATTRS(sp)); \
1998				VIDPUTS(sp, AttrOf(c), GetPair(c)); \
1999				if (magic_cookie_glitch > 0 \
2000				 && XMC_CHANGES((chg ^ AttrOf(SCREEN_ATTRS(sp))))) { \
2001					T(("%s @%d before glitch %d,%d", \
2002						__FILE__, __LINE__, \
2003						sp->_cursrow, \
2004						sp->_curscol)); \
2005					NCURSES_SP_NAME(_nc_do_xmc_glitch)(NCURSES_SP_ARGx chg); \
2006				} \
2007			}
2008#else
2009#define UpdateAttrs(sp,c) if (!SameAttrOf(SCREEN_ATTRS(sp), c)) { \
2010				    VIDPUTS(sp, AttrOf(c), GetPair(c)); \
2011			}
2012#endif
2013
2014/*
2015 * Macros to make additional parameter to implement wgetch_events()
2016 */
2017#ifdef NCURSES_WGETCH_EVENTS
2018#define EVENTLIST_0th(param) param
2019#define EVENTLIST_1st(param) param
2020#define EVENTLIST_2nd(param) , param
2021#define TWAIT_MASK (TW_ANY | TW_EVENT)
2022#else
2023#define EVENTLIST_0th(param) void
2024#define EVENTLIST_1st(param) /* nothing */
2025#define EVENTLIST_2nd(param) /* nothing */
2026#define TWAIT_MASK TW_ANY
2027#endif
2028
2029#if NCURSES_EXPANDED && NCURSES_EXT_FUNCS
2030
2031#undef  toggle_attr_on
2032#define toggle_attr_on(S,at) _nc_toggle_attr_on(&(S), at)
2033extern NCURSES_EXPORT(void) _nc_toggle_attr_on (attr_t *, attr_t);
2034
2035#undef  toggle_attr_off
2036#define toggle_attr_off(S,at) _nc_toggle_attr_off(&(S), at)
2037extern NCURSES_EXPORT(void) _nc_toggle_attr_off (attr_t *, attr_t);
2038
2039#undef  DelCharCost
2040#define DelCharCost(sp, count) NCURSES_SP_NAME(_nc_DelCharCost)(NCURSES_SP_ARGx count)
2041
2042#undef  InsCharCost
2043#define InsCharCost(sp, count) NCURSES_SP_NAME(_nc_InsCharCost)(NCURSES_SP_ARGx count)
2044
2045extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_DelCharCost) (NCURSES_SP_DCLx int _c);
2046extern NCURSES_EXPORT(int) NCURSES_SP_NAME(_nc_InsCharCost) (NCURSES_SP_DCLx int _c);
2047
2048#undef  UpdateAttrs
2049#define UpdateAttrs(sp,c) NCURSES_SP_NAME(_nc_UpdateAttrs)(NCURSES_SP_ARGx CHREF(c))
2050
2051#if USE_WIDEC_SUPPORT || defined(NEED_NCURSES_CH_T)
2052extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx CARG_CH_T _c);
2053#else
2054extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_UpdateAttrs) (NCURSES_SP_DCLx chtype c);
2055#endif
2056
2057#if NCURSES_SP_FUNCS
2058extern NCURSES_EXPORT(int) _nc_DelCharCost (int);
2059extern NCURSES_EXPORT(int) _nc_InsCharCost (int);
2060extern NCURSES_EXPORT(void) _nc_UpdateAttrs (CARG_CH_T);
2061#endif /* NCURSES_SP_FUNCS */
2062
2063#else
2064
2065extern NCURSES_EXPORT(void) _nc_expanded (void);
2066
2067#endif
2068
2069#if !NCURSES_EXT_FUNCS
2070#define set_escdelay(value) ESCDELAY = value
2071#endif
2072
2073#if !HAVE_GETCWD
2074#define getcwd(buf,len) getwd(buf)
2075#endif
2076
2077#define save_ttytype(termp) \
2078	if (TerminalType(termp).term_names != 0) { \
2079	    _nc_STRNCPY(ttytype, \
2080	    		TerminalType(termp).term_names, \
2081			NAMESIZE - 1); \
2082	    ttytype[NAMESIZE - 1] = '\0'; \
2083	}
2084
2085#if !NCURSES_WCWIDTH_GRAPHICS
2086extern NCURSES_EXPORT(int) _nc_wacs_width(unsigned);
2087#else
2088#define _nc_wacs_width(ch) wcwidth(ch)
2089#endif
2090
2091/* charable.c */
2092#if USE_WIDEC_SUPPORT
2093extern NCURSES_EXPORT(bool) _nc_is_charable(wchar_t);
2094extern NCURSES_EXPORT(int) _nc_to_char(wint_t);
2095extern NCURSES_EXPORT(wint_t) _nc_to_widechar(int);
2096#endif
2097
2098/* comp_captab.c */
2099typedef struct {
2100	short	nte_name;	/* offset of name to hash on */
2101	int	nte_type;	/* BOOLEAN, NUMBER or STRING */
2102	short	nte_index;	/* index of associated variable in its array */
2103	short	nte_link;	/* index in table of next hash, or -1 */
2104} name_table_data;
2105
2106typedef struct
2107{
2108	short	from;
2109	short	to;
2110	short	source;
2111} alias_table_data;
2112
2113/* comp_userdefs.c */
2114typedef struct {
2115	short	ute_name;	/* offset of name to hash on */
2116	unsigned ute_type;	/* mask (BOOLEAN, NUMBER, STRING) */
2117	unsigned ute_argc;	/* number of parameters */
2118	unsigned ute_args;	/* bit-mask for string parameters */
2119	short	ute_index;	/* index of associated variable in its array */
2120	short	ute_link;	/* index in table of next hash, or -1 */
2121} user_table_data;
2122
2123/* doupdate.c */
2124#if USE_XMC_SUPPORT
2125extern NCURSES_EXPORT(void) _nc_do_xmc_glitch (attr_t);
2126#endif
2127
2128/* hardscroll.c */
2129#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
2130extern NCURSES_EXPORT(void) _nc_linedump (void);
2131#endif
2132
2133/* lib_acs.c */
2134extern NCURSES_EXPORT(void) _nc_init_acs (void); /* corresponds to traditional 'init_acs()' */
2135extern NCURSES_EXPORT(int)  _nc_msec_cost (const char *const, int);  /* used by 'tack' program */
2136
2137/* lib_addch.c */
2138#if USE_WIDEC_SUPPORT
2139NCURSES_EXPORT(int) _nc_build_wch(WINDOW *win, ARG_CH_T ch);
2140#endif
2141
2142/* lib_addstr.c */
2143#if USE_WIDEC_SUPPORT && !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2144extern NCURSES_EXPORT(int) _nc_wchstrlen(const cchar_t *);
2145#endif
2146
2147/* lib_color.c */
2148extern NCURSES_EXPORT(int) _nc_init_color(SCREEN *, int, int, int, int);
2149extern NCURSES_EXPORT(int) _nc_init_pair(SCREEN *, int, int, int);
2150extern NCURSES_EXPORT(int) _nc_pair_content(SCREEN *, int, int *, int *);
2151extern NCURSES_EXPORT(bool) _nc_reset_colors(void);
2152extern NCURSES_EXPORT(void) _nc_reserve_pairs(SCREEN *, int);
2153extern NCURSES_EXPORT(void) _nc_change_pair(SCREEN *, int);
2154
2155#define ReservePairs(sp,want) \
2156	    if ((sp->_color_pairs == 0) || (want >= sp->_pair_alloc)) \
2157		_nc_reserve_pairs(sp, want)
2158
2159/* lib_getch.c */
2160extern NCURSES_EXPORT(int) _nc_wgetch(WINDOW *, int *, int EVENTLIST_2nd(_nc_eventlist *));
2161
2162/* lib_insch.c */
2163extern NCURSES_EXPORT(int) _nc_insert_ch(SCREEN *, WINDOW *, chtype);
2164
2165/* lib_mvcur.c */
2166#define INFINITY	1000000	/* cost: too high to use */
2167
2168extern NCURSES_EXPORT(int) _nc_mvcur(int yold, int xold, int ynew, int xnew);
2169
2170extern NCURSES_EXPORT(void) _nc_mvcur_init (void);
2171extern NCURSES_EXPORT(void) _nc_mvcur_resume (void);
2172extern NCURSES_EXPORT(void) _nc_mvcur_wrap (void);
2173
2174extern NCURSES_EXPORT(int) _nc_scrolln (int, int, int, int);
2175
2176extern NCURSES_EXPORT(void) _nc_screen_init (void);
2177extern NCURSES_EXPORT(void) _nc_screen_resume (void);
2178extern NCURSES_EXPORT(void) _nc_screen_wrap (void);
2179
2180/* lib_mouse.c */
2181extern NCURSES_EXPORT(bool) _nc_has_mouse (SCREEN *);
2182
2183/* lib_mvcur.c */
2184#define INFINITY	1000000	/* cost: too high to use */
2185#define BAUDBYTE	9	/* 9 = 7 bits + 1 parity + 1 stop */
2186
2187/* lib_setup.c */
2188extern NCURSES_EXPORT(char *) _nc_get_locale(void);
2189extern NCURSES_EXPORT(int)    _nc_unicode_locale(void);
2190extern NCURSES_EXPORT(int)    _nc_locale_breaks_acs(TERMINAL *);
2191extern NCURSES_EXPORT(int)    _nc_setupterm(const char *, int, int *, int);
2192extern NCURSES_EXPORT(void)   _nc_tinfo_cmdch(TERMINAL *, int);
2193
2194#ifdef USE_PTHREADS
2195extern NCURSES_EXPORT(SCREEN *) _nc_find_prescr(void);
2196extern NCURSES_EXPORT(void)   _nc_forget_prescr(void);
2197#else
2198#define _nc_find_prescr()     _nc_prescreen.allocated
2199#define _nc_forget_prescr()   _nc_prescreen.allocated = 0
2200#endif
2201
2202/* lib_set_term.c */
2203extern NCURSES_EXPORT(int)    _nc_ripoffline(int, int(*)(WINDOW*, int));
2204
2205/* lib_setup.c */
2206#define ExitTerminfo(code)    exit_terminfo(code)
2207
2208#define SETUP_FAIL ERR
2209
2210#define ret_error(rc, fmt, p, q)	if (errret) {\
2211					    *errret = rc;\
2212					    q;\
2213					    returnCode(SETUP_FAIL);\
2214					} else {\
2215					    fprintf(stderr, fmt, p);\
2216					    q;\
2217					    ExitTerminfo(EXIT_FAILURE);\
2218					}
2219
2220#define ret_error1(rc, fmt, p, q)	ret_error(rc, "'%s': " fmt, p, q)
2221
2222#define ret_error0(rc, msg)		if (errret) {\
2223					    *errret = rc;\
2224					    returnCode(SETUP_FAIL);\
2225					} else {\
2226					    fprintf(stderr, msg);\
2227					    ExitTerminfo(EXIT_FAILURE);\
2228					}
2229
2230/* lib_tstp.c */
2231#if USE_SIGWINCH
2232extern NCURSES_EXPORT(int) _nc_handle_sigwinch(SCREEN *);
2233#else
2234#define _nc_handle_sigwinch(a) /* nothing */
2235#endif
2236
2237/* lib_wacs.c */
2238#if USE_WIDEC_SUPPORT
2239extern NCURSES_EXPORT(void) _nc_init_wacs(void);
2240#endif
2241
2242typedef struct {
2243    char *s_head;	/* beginning of the string (may be null) */
2244    char *s_tail;	/* end of the string (may be null) */
2245    size_t s_size;	/* current remaining size available */
2246    size_t s_init;	/* total size available */
2247} string_desc;
2248
2249/* strings.c */
2250extern NCURSES_EXPORT(string_desc *) _nc_str_init (string_desc *, char *, size_t);
2251extern NCURSES_EXPORT(string_desc *) _nc_str_null (string_desc *, size_t);
2252extern NCURSES_EXPORT(string_desc *) _nc_str_copy (string_desc *, string_desc *);
2253extern NCURSES_EXPORT(bool) _nc_safe_strcat (string_desc *, const char *);
2254extern NCURSES_EXPORT(bool) _nc_safe_strcpy (string_desc *, const char *);
2255
2256#if !HAVE_STRSTR
2257#define strstr _nc_strstr
2258extern NCURSES_EXPORT(char *) _nc_strstr (const char *, const char *);
2259#endif
2260
2261/* safe_sprintf.c */
2262extern NCURSES_EXPORT(char *) _nc_printf_string (const char *, va_list);
2263
2264/* tries.c */
2265extern NCURSES_EXPORT(int) _nc_add_to_try (TRIES **, const char *, unsigned);
2266extern NCURSES_EXPORT(char *) _nc_expand_try (TRIES *, unsigned, int *, size_t);
2267extern NCURSES_EXPORT(int) _nc_remove_key (TRIES **, unsigned);
2268extern NCURSES_EXPORT(int) _nc_remove_string (TRIES **, const char *);
2269
2270/* elsewhere ... */
2271extern NCURSES_EXPORT(SCREEN *) _nc_screen_of (WINDOW *);
2272extern NCURSES_EXPORT(TERMINAL*) _nc_get_cur_term (void);
2273extern NCURSES_EXPORT(WINDOW *) _nc_makenew (int, int, int, int, int);
2274extern NCURSES_EXPORT(char *) _nc_trace_buf (int, size_t);
2275extern NCURSES_EXPORT(char *) _nc_trace_bufcat (int, const char *);
2276extern NCURSES_EXPORT(char *) _nc_tracechar (SCREEN *, int);
2277extern NCURSES_EXPORT(char *) _nc_tracemouse (SCREEN *, MEVENT const *);
2278extern NCURSES_EXPORT(char *) _nc_trace_mmask_t (SCREEN *, mmask_t);
2279extern NCURSES_EXPORT(int) _nc_access (const char *, int);
2280extern NCURSES_EXPORT(int) _nc_baudrate (int);
2281extern NCURSES_EXPORT(ENTRY *) _nc_delink_entry (ENTRY *, TERMTYPE2 *);
2282extern NCURSES_EXPORT(int) _nc_freewin (WINDOW *);
2283extern NCURSES_EXPORT(int) _nc_getenv_num (const char *);
2284extern NCURSES_EXPORT(int) _nc_keypad (SCREEN *, int);
2285extern NCURSES_EXPORT(int) _nc_ospeed (int);
2286extern NCURSES_EXPORT(int) _nc_outch (int);
2287extern NCURSES_EXPORT(int) _nc_putchar (int);
2288extern NCURSES_EXPORT(int) _nc_putp(const char *, const char *);
2289extern NCURSES_EXPORT(int) _nc_putp_flush(const char *, const char *);
2290extern NCURSES_EXPORT(int) _nc_read_termcap_entry (const char *const, TERMTYPE2 *const);
2291extern NCURSES_EXPORT(int) _nc_setup_tinfo(const char *, TERMTYPE2 *);
2292extern NCURSES_EXPORT(int) _nc_setupscreen (int, int, FILE *, int, int);
2293extern NCURSES_EXPORT(int) _nc_timed_wait (SCREEN *, int, int, int * EVENTLIST_2nd(_nc_eventlist *));
2294extern NCURSES_EXPORT(void) _nc_init_termtype (TERMTYPE2 *const);
2295extern NCURSES_EXPORT(void) _nc_do_color (int, int, int, NCURSES_OUTC);
2296extern NCURSES_EXPORT(void) _nc_flush (void);
2297extern NCURSES_EXPORT(void) _nc_free_entry (ENTRY *, TERMTYPE2 *);
2298extern NCURSES_EXPORT(void) _nc_freeall (void);
2299extern NCURSES_EXPORT(void) _nc_hash_map (void);
2300extern NCURSES_EXPORT(void) _nc_init_keytry (SCREEN *);
2301extern NCURSES_EXPORT(void) _nc_keep_tic_dir (const char *);
2302extern NCURSES_EXPORT(void) _nc_make_oldhash (int i);
2303extern NCURSES_EXPORT(void) _nc_scroll_oldhash (int n, int top, int bot);
2304extern NCURSES_EXPORT(void) _nc_scroll_optimize (void);
2305extern NCURSES_EXPORT(void) _nc_set_buffer (FILE *, int);
2306extern NCURSES_EXPORT(void) _nc_setenv_num (const char *, int);
2307extern NCURSES_EXPORT(void) _nc_signal_handler (int);
2308extern NCURSES_EXPORT(void) _nc_synchook (WINDOW *);
2309extern NCURSES_EXPORT(void) _nc_trace_tries (TRIES *);
2310
2311#if NCURSES_EXT_NUMBERS
2312extern NCURSES_EXPORT(const TERMTYPE2 *) _nc_fallback2 (const char *);
2313#else
2314#define _nc_fallback2(tp) _nc_fallback(tp)
2315#endif
2316
2317#if NCURSES_EXT_NUMBERS
2318extern NCURSES_EXPORT(void) _nc_copy_termtype2 (TERMTYPE2 *, const TERMTYPE2 *);
2319extern NCURSES_EXPORT(void) _nc_export_termtype2(TERMTYPE *, const TERMTYPE2 *);
2320#else
2321#define _nc_copy_termtype2(dst,src) _nc_copy_termtype((dst),(src))
2322#define _nc_export_termtype2(dst,src) /* nothing */
2323#define _nc_free_termtype2(t) _nc_free_termtype(t)
2324/* also... */
2325#define _nc_read_entry2 _nc_read_entry
2326#endif
2327
2328#if NO_LEAKS
2329extern NCURSES_EXPORT(void) _nc_alloc_entry_leaks(void);
2330extern NCURSES_EXPORT(void) _nc_captoinfo_leaks(void);
2331extern NCURSES_EXPORT(void) _nc_codes_leaks(void);
2332extern NCURSES_EXPORT(void) _nc_comp_captab_leaks(void);
2333extern NCURSES_EXPORT(void) _nc_comp_error_leaks(void);
2334extern NCURSES_EXPORT(void) _nc_comp_scan_leaks(void);
2335extern NCURSES_EXPORT(void) _nc_comp_userdefs_leaks(void);
2336extern NCURSES_EXPORT(void) _nc_db_iterator_leaks(void);
2337extern NCURSES_EXPORT(void) _nc_keyname_leaks(void);
2338extern NCURSES_EXPORT(void) _nc_names_leaks(void);
2339extern NCURSES_EXPORT(void) _nc_tgetent_leak(TERMINAL *);
2340extern NCURSES_EXPORT(void) _nc_tgetent_leaks(void);
2341#endif
2342
2343#if !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2344extern NCURSES_EXPORT(NCURSES_CH_T) _nc_render (WINDOW *, NCURSES_CH_T);
2345extern NCURSES_EXPORT(int) _nc_waddch_nosync (WINDOW *, const NCURSES_CH_T);
2346extern NCURSES_EXPORT(void) _nc_scroll_window (WINDOW *, int const, int const, int const, NCURSES_CH_T);
2347#endif
2348
2349#if USE_WIDEC_SUPPORT
2350extern NCURSES_EXPORT(int) _nc_insert_wch(WINDOW *, const cchar_t *);
2351#endif
2352
2353#if USE_WIDEC_SUPPORT && !(defined(USE_TERMLIB) || defined(USE_BUILD_CC))
2354extern NCURSES_EXPORT(size_t) _nc_wcrtomb (char *, wchar_t, mbstate_t *);
2355#endif
2356
2357#if USE_SIZECHANGE
2358extern NCURSES_EXPORT(void) _nc_update_screensize (SCREEN *);
2359#endif
2360
2361#if HAVE_RESIZETERM
2362extern NCURSES_EXPORT(void) _nc_resize_margins (WINDOW *);
2363#else
2364#define _nc_resize_margins(wp) /* nothing */
2365#endif
2366
2367#ifdef NCURSES_WGETCH_EVENTS
2368extern NCURSES_EXPORT(int) _nc_eventlist_timeout(_nc_eventlist *);
2369#else
2370#define wgetch_events(win, evl) wgetch(win)
2371#define wgetnstr_events(win, str, maxlen, evl) wgetnstr(win, str, maxlen)
2372#endif
2373
2374/*
2375 * Wide-character macros to hide some platform-differences.
2376 */
2377#if USE_WIDEC_SUPPORT
2378
2379#if defined(_NC_WINDOWS) && !defined(_NC_MSC) && !defined(EXP_WIN32_DRIVER)
2380/*
2381 * MinGW has wide-character functions, but they do not work correctly.
2382 */
2383extern int __MINGW_NOTHROW _nc_wctomb(char *, wchar_t);
2384#define wctomb(s,wc) _nc_wctomb(s,wc)
2385#define wcrtomb(s,wc,n) _nc_wctomb(s,wc)
2386
2387extern int __MINGW_NOTHROW _nc_mbtowc(wchar_t *, const char *, size_t);
2388#define mbtowc(pwc,s,n) _nc_mbtowc(pwc,s,n)
2389
2390extern int __MINGW_NOTHROW _nc_mblen(const char *, size_t);
2391#define mblen(s,n) _nc_mblen(s, n)
2392
2393#endif /* _NC_WINDOWS && !_NC_MSC */
2394
2395#if HAVE_MBTOWC && HAVE_MBLEN
2396#define reset_mbytes(state) IGNORE_RC(mblen(NULL, (size_t) 0)), IGNORE_RC(mbtowc(NULL, NULL, (size_t) 0))
2397#define count_mbytes(buffer,length,state) mblen(buffer,length)
2398#define check_mbytes(wch,buffer,length,state) \
2399	(int) mbtowc(&wch, buffer, length)
2400#define state_unused
2401#elif HAVE_MBRTOWC && HAVE_MBRLEN
2402#define reset_mbytes(state) init_mb(state)
2403#define count_mbytes(buffer,length,state) mbrlen(buffer,length,&state)
2404#define check_mbytes(wch,buffer,length,state) \
2405	(int) mbrtowc(&wch, buffer, length, &state)
2406#else
2407make an error
2408#endif
2409
2410#endif /* USE_WIDEC_SUPPORT */
2411
2412/*
2413 * Not everyone has vsscanf(), but we'd like to use it for scanw().
2414 */
2415#if !HAVE_VSSCANF
2416extern int vsscanf(const char *str, const char *format, va_list __arg);
2417#endif
2418
2419/* scroll indices */
2420extern NCURSES_EXPORT_VAR(int *) _nc_oldnums;
2421
2422#define USE_SETBUF_0 0
2423
2424#define NC_OUTPUT(sp) ((sp != 0 && sp->_ofp != 0) ? sp->_ofp : stdout)
2425
2426/*
2427 * On systems with a broken linker, define 'SP' as a function to force the
2428 * linker to pull in the data-only module with 'SP'.
2429 */
2430#define _nc_alloc_screen_sp() typeCalloc(SCREEN, 1)
2431
2432#if BROKEN_LINKER
2433#define SP _nc_screen()
2434extern NCURSES_EXPORT(SCREEN *) _nc_screen (void);
2435extern NCURSES_EXPORT(int)      _nc_alloc_screen (void);
2436extern NCURSES_EXPORT(void)     _nc_set_screen (SCREEN *);
2437#define CURRENT_SCREEN          _nc_screen()
2438#else
2439/* current screen is private data; avoid possible linking conflicts too */
2440extern NCURSES_EXPORT_VAR(SCREEN *) SP;
2441#define CURRENT_SCREEN SP
2442#define _nc_alloc_screen()      ((SP = _nc_alloc_screen_sp()) != 0)
2443#define _nc_set_screen(sp)      SP = sp
2444#endif
2445
2446#if NCURSES_SP_FUNCS
2447#define CURRENT_SCREEN_PRE      (IsPreScreen(CURRENT_SCREEN) ? CURRENT_SCREEN : new_prescr())
2448#else
2449#define CURRENT_SCREEN_PRE      CURRENT_SCREEN
2450#endif
2451
2452/*
2453 * We don't want to use the lines or columns capabilities internally, because
2454 * if the application is running multiple screens under X, it's quite possible
2455 * they could all have type xterm but have different sizes!  So...
2456 */
2457#define screen_lines(sp)        (sp)->_lines
2458#define screen_columns(sp)      (sp)->_columns
2459
2460extern NCURSES_EXPORT(int) _nc_slk_initialize (WINDOW *, int);
2461extern NCURSES_EXPORT(int) _nc_format_slks (NCURSES_SP_DCLx int _c);
2462
2463/*
2464 * Some constants related to SLK's
2465 */
2466#define MAX_SKEY_OLD	   8	/* count of soft keys */
2467#define MAX_SKEY_LEN_OLD   8	/* max length of soft key text */
2468#define MAX_SKEY_PC       12    /* This is what most PC's have */
2469#define MAX_SKEY_LEN_PC    5
2470
2471/* Macro to check whether or not we use a standard format */
2472#define SLK_STDFMT(fmt) (fmt < 3)
2473/* Macro to determine height of label window */
2474#define SLK_LINES(fmt)  (SLK_STDFMT(fmt) ? 1 : ((fmt) - 2))
2475
2476#define MAX_SKEY(fmt)     (SLK_STDFMT(fmt)? MAX_SKEY_OLD : MAX_SKEY_PC)
2477#define MAX_SKEY_LEN(fmt) (SLK_STDFMT(fmt)? MAX_SKEY_LEN_OLD : MAX_SKEY_LEN_PC)
2478
2479/*
2480 * Common error messages
2481 */
2482#define MSG_NO_MEMORY "Out of memory"
2483#define MSG_NO_INPUTS "Premature EOF"
2484
2485extern NCURSES_EXPORT(int) _nc_set_tty_mode(TTY *);
2486extern NCURSES_EXPORT(int) _nc_get_tty_mode(TTY *);
2487
2488/* timed_wait flag definitions */
2489#define TW_NONE    0
2490#define TW_INPUT   1
2491#define TW_MOUSE   2
2492#define TW_ANY     (TW_INPUT | TW_MOUSE)
2493#define TW_EVENT   4
2494
2495#define SetSafeOutcWrapper(outc)	    \
2496    SCREEN* sp = CURRENT_SCREEN;            \
2497    struct screen outc_wrapper;		    \
2498    if (sp==0) {                            \
2499	sp = &outc_wrapper;                 \
2500	memset(sp,0,sizeof(struct screen)); \
2501	sp->_outch = _nc_outc_wrapper;      \
2502    }\
2503    sp->jump = outc
2504
2505#ifdef USE_TERM_DRIVER
2506
2507typedef struct _termInfo
2508{
2509    bool caninit;
2510
2511    bool hascolor;
2512    bool initcolor;
2513    bool canchange;
2514
2515    int  tabsize;
2516
2517    int  maxcolors;
2518    int  maxpairs;
2519    int  nocolorvideo;
2520
2521    int  numbuttons;
2522    int  numlabels;
2523    int  labelwidth;
2524    int  labelheight;
2525
2526    const color_t* defaultPalette;
2527} TerminalInfo;
2528
2529typedef struct term_driver {
2530    bool   isTerminfo;
2531    const char* (*td_name)(struct DriverTCB*);
2532    bool   (*td_CanHandle)(struct DriverTCB*, const char*, int*);
2533    void   (*td_init)(struct DriverTCB*);
2534    void   (*td_release)(struct DriverTCB*);
2535    int    (*td_size)(struct DriverTCB*, int* Line, int *Cols);
2536    int    (*td_sgmode)(struct DriverTCB*, int setFlag, TTY*);
2537    chtype (*td_conattr)(struct DriverTCB*);
2538    int    (*td_hwcur)(struct DriverTCB*, int yold, int xold, int y, int x);
2539    int    (*td_mode)(struct DriverTCB*, int progFlag, int defFlag);
2540    bool   (*td_rescol)(struct DriverTCB*);
2541    bool   (*td_rescolors)(struct DriverTCB*);
2542    void   (*td_color)(struct DriverTCB*, int fore, int color, int(*)(SCREEN*, int));
2543    int    (*td_doBeepOrFlash)(struct DriverTCB*, int);
2544    void   (*td_initpair)(struct DriverTCB*, int, int, int);
2545    void   (*td_initcolor)(struct DriverTCB*, int, int, int, int);
2546    void   (*td_docolor)(struct DriverTCB*, int, int, int, int(*)(SCREEN*, int));
2547    void   (*td_initmouse)(struct DriverTCB*);
2548    int    (*td_testmouse)(struct DriverTCB*, int EVENTLIST_2nd(_nc_eventlist*));
2549    void   (*td_setfilter)(struct DriverTCB*);
2550    void   (*td_hwlabel)(struct DriverTCB*, int, char*);
2551    void   (*td_hwlabelOnOff)(struct DriverTCB*, int);
2552    int    (*td_update)(struct DriverTCB*);
2553    int    (*td_defaultcolors)(struct DriverTCB*, int, int);
2554    int    (*td_print)(struct DriverTCB*, char*, int);
2555    int    (*td_getsize)(struct DriverTCB*, int*, int*);
2556    int    (*td_setsize)(struct DriverTCB*, int, int);
2557    void   (*td_initacs)(struct DriverTCB*, chtype*, chtype*);
2558    void   (*td_scinit)(SCREEN *);
2559    void   (*td_scexit)(SCREEN *);
2560    int    (*td_twait)(struct DriverTCB*, int, int, int* EVENTLIST_2nd(_nc_eventlist*));
2561    int    (*td_read)(struct DriverTCB*, int*);
2562    int    (*td_nap)(struct DriverTCB*, int);
2563    int    (*td_kpad)(struct DriverTCB*, int);
2564    int    (*td_kyOk)(struct DriverTCB*, int, int);
2565    bool   (*td_kyExist)(struct DriverTCB*, int);
2566    int    (*td_cursorSet)(struct DriverTCB*, int);
2567} TERM_DRIVER;
2568
2569typedef struct DriverTCB
2570{
2571    TERMINAL      term;   /* needs to be the first Element !!! */
2572    TERM_DRIVER*  drv;    /* The driver for that Terminal */
2573    SCREEN*       csp;    /* The screen that owns that Terminal */
2574    TerminalInfo  info;   /* Driver independent core capabilities of the Terminal */
2575    void*         prop;   /* Driver dependent property storage to be used by the Driver */
2576    long          magic;
2577} TERMINAL_CONTROL_BLOCK;
2578
2579#define NCDRV_MAGIC(id) (0x47110000 | (id&0xffff))
2580#define NCDRV_TINFO      0x01
2581#define NCDRV_WINCONSOLE 0x02
2582
2583#define TCBOf(sp)    ((TERMINAL_CONTROL_BLOCK*)(TerminalOf(sp)))
2584#define InfoOf(sp)   TCBOf(sp)->info
2585#define CallDriver(sp,method)                        TCBOf(sp)->drv->method(TCBOf(sp))
2586#define CallDriver_1(sp,method,arg1)                 TCBOf(sp)->drv->method(TCBOf(sp),arg1)
2587#define CallDriver_2(sp,method,arg1,arg2)            TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2)
2588#define CallDriver_3(sp,method,arg1,arg2,arg3)       TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2,arg3)
2589#define CallDriver_4(sp,method,arg1,arg2,arg3,arg4)  TCBOf(sp)->drv->method(TCBOf(sp),arg1,arg2,arg3,arg4)
2590
2591extern NCURSES_EXPORT_VAR(const color_t*) _nc_cga_palette;
2592extern NCURSES_EXPORT_VAR(const color_t*) _nc_hls_palette;
2593
2594extern NCURSES_EXPORT(int)      _nc_get_driver(TERMINAL_CONTROL_BLOCK*, const char*, int*);
2595extern NCURSES_EXPORT(void)     _nc_get_screensize_ex(SCREEN *, TERMINAL *, int *, int *);
2596#endif /* USE_TERM_DRIVER */
2597
2598/*
2599 * Entrypoints which are actually provided in the terminal driver, which would
2600 * be an sp-name otherwise.
2601 */
2602#ifdef USE_TERM_DRIVER
2603#define TINFO_HAS_KEY           _nc_tinfo_has_key
2604#define TINFO_DOUPDATE          _nc_tinfo_doupdate
2605#define TINFO_MVCUR             _nc_tinfo_mvcur
2606extern NCURSES_EXPORT(int)      TINFO_HAS_KEY(SCREEN*, int);
2607extern NCURSES_EXPORT(int)      TINFO_DOUPDATE(SCREEN *);
2608extern NCURSES_EXPORT(int)      TINFO_MVCUR(SCREEN*, int, int, int, int);
2609#else
2610#define TINFO_HAS_KEY           NCURSES_SP_NAME(has_key)
2611#define TINFO_DOUPDATE          NCURSES_SP_NAME(doupdate)
2612#define TINFO_MVCUR             NCURSES_SP_NAME(_nc_mvcur)
2613#endif
2614
2615#if defined(EXP_WIN32_DRIVER)
2616#include <nc_win32.h>
2617#endif
2618
2619/*
2620 * Entrypoints using an extra parameter with the terminal driver.
2621 */
2622#ifdef USE_TERM_DRIVER
2623extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, TERMINAL *, int *, int *);
2624extern NCURSES_EXPORT(int)    _nc_setupterm_ex(TERMINAL **, const char *, int , int *, int);
2625#define TINFO_GET_SIZE(sp, tp, lp, cp) \
2626	_nc_get_screensize(sp, tp, lp, cp)
2627#define TINFO_SET_CURTERM(sp, tp) \
2628	NCURSES_SP_NAME(set_curterm)(sp, tp)
2629#define TINFO_SETUP_TERM(tpp, name, fd, err, reuse) \
2630	_nc_setupterm_ex(tpp, name, fd, err, reuse)
2631#else /* !USE_TERM_DRIVER */
2632extern NCURSES_EXPORT(void)   _nc_get_screensize(SCREEN *, int *, int *);
2633#define TINFO_GET_SIZE(sp, tp, lp, cp) \
2634	_nc_get_screensize(sp, lp, cp)
2635#define TINFO_SET_CURTERM(sp, tp) \
2636	set_curterm(tp)
2637#define TINFO_SETUP_TERM(tpp, name, fd, err, reuse) \
2638	_nc_setupterm(name, fd, err, reuse)
2639#endif /* !USE_TERM_DRIVER */
2640
2641#ifdef EXP_WIN32_DRIVER
2642extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_TINFO_DRIVER;
2643#else
2644#ifdef USE_TERM_DRIVER
2645#if defined(USE_WIN32CON_DRIVER)
2646#include <nc_mingw.h>
2647extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_WIN_DRIVER;
2648extern NCURSES_EXPORT(int)  _nc_mingw_isatty(int fd);
2649extern NCURSES_EXPORT(int)  _nc_mingw_isconsole(int fd);
2650extern NCURSES_EXPORT(int) _nc_mingw_console_read(
2651    SCREEN *sp,
2652    HANDLE  fd,
2653    int *buf);
2654extern NCURSES_EXPORT(int) _nc_mingw_testmouse(
2655    SCREEN * sp,
2656    HANDLE fd,
2657    int delay EVENTLIST_2nd(_nc_eventlist*));
2658#else
2659#endif
2660extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_TINFO_DRIVER;
2661#endif /* USE_TERM_DRIVER */
2662#endif /* EXP_WIN32_DRIVER */
2663
2664#if defined(USE_TERM_DRIVER) && defined(EXP_WIN32_DRIVER)
2665#define NC_ISATTY(fd) (0 != _nc_console_isatty(fd))
2666#elif defined(USE_TERM_DRIVER) && defined(USE_WIN32CON_DRIVER)
2667#define NC_ISATTY(fd) _nc_mingw_isatty(fd)
2668#else
2669#define NC_ISATTY(fd) isatty(fd)
2670#endif
2671
2672#ifdef USE_TERM_DRIVER
2673#  define IsTermInfo(sp)       ((TCBOf(sp) != 0) && ((TCBOf(sp)->drv->isTerminfo)))
2674#  define HasTInfoTerminal(sp) ((0 != TerminalOf(sp)) && IsTermInfo(sp))
2675#  if defined(EXP_WIN32_DRIVER)
2676#    define IsTermInfoOnConsole(sp) (IsTermInfo(sp)&&_nc_console_test(TerminalOf(sp)->Filedes))
2677#  elif defined(USE_WIN32CON_DRIVER)
2678#    define IsTermInfoOnConsole(sp) (IsTermInfo(sp)&&_nc_mingw_isconsole(TerminalOf(sp)->Filedes))
2679#  else
2680#    define IsTermInfoOnConsole(sp) FALSE
2681#  endif
2682#else
2683#  define IsTermInfo(sp)       TRUE
2684#  define HasTInfoTerminal(sp) (0 != TerminalOf(sp))
2685#  if defined(EXP_WIN32_DRIVER)
2686#    define IsTermInfoOnConsole(sp) _nc_console_test(TerminalOf(sp)->Filedes)
2687#  else
2688#    define IsTermInfoOnConsole(sp) FALSE
2689#  endif
2690#endif
2691
2692#define IsValidTIScreen(sp)  (HasTInfoTerminal(sp))
2693
2694/*
2695 * Exported entrypoints beyond the published API
2696 */
2697#if NCURSES_SP_FUNCS
2698extern NCURSES_EXPORT(WINDOW *) _nc_curscr_of(SCREEN*);
2699extern NCURSES_EXPORT(WINDOW *) _nc_newscr_of(SCREEN*);
2700extern NCURSES_EXPORT(WINDOW *) _nc_stdscr_of(SCREEN*);
2701extern NCURSES_EXPORT(int)      _nc_outc_wrapper(SCREEN*,int);
2702
2703#if USE_REENTRANT
2704extern NCURSES_EXPORT(int)       NCURSES_SP_NAME(_nc_TABSIZE)(SCREEN*);
2705extern NCURSES_EXPORT(char *)    NCURSES_SP_NAME(longname)(SCREEN*);
2706#endif
2707
2708#if NCURSES_EXT_FUNCS
2709extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tabsize)(SCREEN*, int);
2710#endif
2711
2712/*
2713 * We put the safe versions of various calls here as they are not published
2714 * part of the API up to now
2715 */
2716extern NCURSES_EXPORT(TERMINAL*) NCURSES_SP_NAME(_nc_get_cur_term) (SCREEN *sp);
2717extern NCURSES_EXPORT(WINDOW *) NCURSES_SP_NAME(_nc_makenew) (SCREEN*, int, int, int, int, int);
2718extern NCURSES_EXPORT(bool)     NCURSES_SP_NAME(_nc_reset_colors)(SCREEN*);
2719extern NCURSES_EXPORT(char *)   NCURSES_SP_NAME(_nc_printf_string)(SCREEN*, const char *, va_list);
2720extern NCURSES_EXPORT(chtype)   NCURSES_SP_NAME(_nc_acs_char)(SCREEN*,int);
2721extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_get_tty_mode)(SCREEN*,TTY*);
2722extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mcprint)(SCREEN*,char*, int);
2723extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_msec_cost)(SCREEN*, const char *, int);
2724extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_mvcur)(SCREEN*, int, int, int, int);
2725extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_outch)(SCREEN*, int);
2726extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putchar)(SCREEN*, int);
2727extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp)(SCREEN*, const char *, const char*);
2728extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_putp_flush)(SCREEN*, const char *, const char *);
2729extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_ripoffline)(SCREEN*, int, int (*)(WINDOW *,int));
2730extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_scrolln)(SCREEN*, int, int, int, int);
2731extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_set_tty_mode)(SCREEN*, TTY*);
2732extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_setupscreen)(SCREEN**, int, int, FILE *, int, int);
2733extern NCURSES_EXPORT(int)      NCURSES_SP_NAME(_nc_tgetent)(SCREEN*,char*,const char *);
2734extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_color)(SCREEN*, int, int, int, NCURSES_SP_OUTC);
2735extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_do_xmc_glitch)(SCREEN*, attr_t);
2736extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_flush)(SCREEN*);
2737extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_free_and_exit)(SCREEN*, int) GCC_NORETURN;
2738extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_freeall)(SCREEN*);
2739extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_hash_map)(SCREEN*);
2740extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_init_acs)(SCREEN*);
2741extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_make_oldhash)(SCREEN*, int i);
2742extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_init)(SCREEN*);
2743extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_resume)(SCREEN*);
2744extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_mvcur_wrap)(SCREEN*);
2745extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_init)(SCREEN*);
2746extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_resume)(SCREEN*);
2747extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_screen_wrap)(SCREEN*);
2748extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_oldhash)(SCREEN*, int n, int top, int bot);
2749extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_scroll_optimize)(SCREEN*);
2750extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_set_buffer)(SCREEN*, FILE *, int);
2751
2752extern NCURSES_EXPORT(void)     _nc_cookie_init(SCREEN *sp);
2753
2754#if defined(TRACE) || defined(SCROLLDEBUG) || defined(HASHDEBUG)
2755extern NCURSES_EXPORT(void)     NCURSES_SP_NAME(_nc_linedump)(SCREEN*);
2756#endif
2757
2758#if USE_WIDEC_SUPPORT
2759extern NCURSES_EXPORT(wchar_t *) NCURSES_SP_NAME(_nc_wunctrl)(SCREEN*, cchar_t *);
2760#endif
2761
2762#endif /* NCURSES_SP_FUNCS */
2763
2764#if NCURSES_SP_FUNCS
2765
2766#define safe_keyname NCURSES_SP_NAME(keyname)
2767#define safe_unctrl  NCURSES_SP_NAME(unctrl)
2768#define safe_ungetch NCURSES_SP_NAME(ungetch)
2769
2770#else
2771
2772#define safe_keyname _nc_keyname
2773#define safe_unctrl  _nc_unctrl
2774#define safe_ungetch _nc_ungetch
2775
2776extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_keyname (SCREEN *, int);
2777extern NCURSES_EXPORT(int) _nc_ungetch (SCREEN *, int);
2778extern NCURSES_EXPORT(NCURSES_CONST char *) _nc_unctrl (SCREEN *, chtype);
2779
2780#endif
2781
2782#ifdef EXP_XTERM_1005
2783NCURSES_EXPORT(int) _nc_conv_to_utf8(unsigned char *, unsigned, unsigned);
2784NCURSES_EXPORT(int) _nc_conv_to_utf32(unsigned *, const char *, unsigned);
2785#endif
2786
2787#ifdef __cplusplus
2788}
2789#endif
2790
2791/* *INDENT-ON* */
2792
2793#endif /* CURSES_PRIV_H */
2794