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Last change on this file since 1227 was 1087, checked in by bird, 22 years ago
USE_EMX and _POSIX_[C_]SOURCE problems with new features.h.
Property cvs2svn:cvs-rev set to `1.10` Property svn:eol-style set to `native` Property svn:executable set to ``*
File size: 18.0 KB

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1	/*-
2	* Copyright (c) 1990, 1993
3	* The Regents of the University of California. All rights reserved.
4	*
5	* This code is derived from software contributed to Berkeley by
6	* Chris Torek.
7	*
8	* Redistribution and use in source and binary forms, with or without
9	* modification, are permitted provided that the following conditions
10	* are met:
11	* 1. Redistributions of source code must retain the above copyright
12	* notice, this list of conditions and the following disclaimer.
13	* 2. Redistributions in binary form must reproduce the above copyright
14	* notice, this list of conditions and the following disclaimer in the
15	* documentation and/or other materials provided with the distribution.
16	* 3. All advertising materials mentioning features or use of this software
17	* must display the following acknowledgement:
18	* This product includes software developed by the University of
19	* California, Berkeley and its contributors.
20	* 4. Neither the name of the University nor the names of its contributors
21	* may be used to endorse or promote products derived from this software
22	* without specific prior written permission.
23	*
24	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34	* SUCH DAMAGE.
35	*
36	* @(#)stdio.h 8.5 (Berkeley) 4/29/95
37	* $FreeBSD: src/include/stdio.h,v 1.51 2003/01/13 08:41:47 tjr Exp $
38	*/
39
40	/** @file
41	* FreeBSD 5.1
42	* @changed bird: EMX isms + LIBC implementation specifics.
43	* @chagned bird: Made quite a few @todos on function which aren't implemented.
44	*/
45
46	#ifndef _STDIO_H_
47	#define _STDIO_H_
48
49	#include <sys/cdefs.h>
50	#include <sys/_types.h>
51
52	typedef __off_t fpos_t;
53
54	#if !defined(_SIZE_T_DECLARED) && !defined(_SIZE_T) /* bird: emx */
55	typedef __size_t size_t;
56	#define _SIZE_T_DECLARED
57	#define _SIZE_T /* bird: emx */
58	#endif
59
60	#if __BSD_VISIBLE \|\| __POSIX_VISIBLE >= 200112 \|\| __XSI_VISIBLE
61	#if !defined(_VA_LIST_DECLARED) && !defined(_VA_LIST) /* bird: emx */
62	typedef __va_list va_list;
63	#define _VA_LIST_DECLARED
64	#define _VA_LIST /* bird: emx */
65	#endif
66	#endif
67
68	#ifndef NULL
69	#define NULL 0
70	#endif
71
72	#if 0 /* bird: emx */
73
74	#define _FSTDIO /* Define for new stdio with functions. */
75
76
77	/*
78	* NB: to fit things in six character monocase externals, the stdio
79	* code uses the prefix `__s' for stdio objects, typically followed
80	* by a three-character attempt at a mnemonic.
81	*/
82
83	/* stdio buffers */
84	struct __sbuf {
85	unsigned char *_base;
86	int _size;
87	};
88
89	/* hold a buncha junk that would grow the ABI */
90	struct __sFILEX;
91
92	/*
93	* stdio state variables.
94	*
95	* The following always hold:
96	*
97	* if (_flags&(__SLBF\|__SWR)) == (__SLBF\|__SWR),
98	* _lbfsize is -_bf._size, else _lbfsize is 0
99	* if _flags&__SRD, _w is 0
100	* if _flags&__SWR, _r is 0
101	*
102	* This ensures that the getc and putc macros (or inline functions) never
103	* try to write or read from a file that is in `read' or `write' mode.
104	* (Moreover, they can, and do, automatically switch from read mode to
105	* write mode, and back, on "r+" and "w+" files.)
106	*
107	* _lbfsize is used only to make the inline line-buffered output stream
108	* code as compact as possible.
109	*
110	* _ub, _up, and _ur are used when ungetc() pushes back more characters
111	* than fit in the current _bf, or when ungetc() pushes back a character
112	* that does not match the previous one in _bf. When this happens,
113	* _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
114	* _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
115	*
116	* NB: see WARNING above before changing the layout of this structure!
117	*/
118	typedef struct __sFILE {
119	unsigned char _p; / current position in (some) buffer */
120	int _r; /* read space left for getc() */
121	int _w; /* write space left for putc() */
122	short _flags; /* flags, below; this FILE is free if 0 */
123	short _file; /* fileno, if Unix descriptor, else -1 */
124	struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
125	int _lbfsize; /* 0 or -_bf._size, for inline putc */
126
127	/* operations */
128	void _cookie; / cookie passed to io functions */
129	int (_close)(void );
130	int (_read)(void , char *, int);
131	fpos_t (_seek)(void , fpos_t, int);
132	int (_write)(void , const char *, int);
133
134	/* separate buffer for long sequences of ungetc() */
135	struct __sbuf _ub; /* ungetc buffer */
136	struct __sFILEX _extra; / additions to FILE to not break ABI */
137	int _ur; /* saved _r when _r is counting ungetc data */
138
139	/* tricks to meet minimum requirements even when malloc() fails */
140	unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
141	unsigned char _nbuf[1]; /* guarantee a getc() buffer */
142
143	/* separate buffer for fgetln() when line crosses buffer boundary */
144	struct __sbuf _lb; /* buffer for fgetln() */
145
146	/* Unix stdio files get aligned to block boundaries on fseek() */
147	int _blksize; /* stat.st_blksize (may be != _bf._size) */
148	fpos_t _offset; /* current lseek offset (see WARNING) */
149	} FILE;
150
151	__BEGIN_DECLS
152	extern FILE *__stdinp;
153	extern FILE *__stdoutp;
154	extern FILE *__stderrp;
155	__END_DECLS
156
157	#define __SLBF 0x0001 /* line buffered */
158	#define __SNBF 0x0002 /* unbuffered */
159	#define __SRD 0x0004 /* OK to read */
160	#define __SWR 0x0008 /* OK to write */
161	/* RD and WR are never simultaneously asserted */
162	#define __SRW 0x0010 /* open for reading & writing */
163	#define __SEOF 0x0020 /* found EOF */
164	#define __SERR 0x0040 /* found error */
165	#define __SMBF 0x0080 /* _buf is from malloc */
166	#define __SAPP 0x0100 /* fdopen()ed in append mode */
167	#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
168	#define __SOPT 0x0400 /* do fseek() optimization */
169	#define __SNPT 0x0800 /* do not do fseek() optimization */
170	#define __SOFF 0x1000 /* set iff _offset is in fact correct */
171	#define __SMOD 0x2000 /* true => fgetln modified _p text */
172	#define __SALC 0x4000 /* allocate string space dynamically */
173	#define __SIGN 0x8000 /* ignore this file in _fwalk */
174
175	#else /* bird: EMX specific FILE stuff starts. */
176
177	#define _FILE_T
178	#define _FILE_MEMBERS_HAVE_UNDERSCORE
179	struct _file2;
180	typedef struct _FILE
181	{
182	char * _ptr;
183	char * _buffer;
184	int _rcount;
185	int _wcount;
186	int _handle;
187	int _flags;
188	int _buf_size;
189	int _tmpidx;
190	int _pid;
191	char _char_buf;
192	unsigned char _ungetc_count;
193	short _mbstate;
194	int (_flush)(struct _FILE , int);
195	struct _file2 *_more;
196	} FILE;
197
198	__BEGIN_DECLS
199	extern FILE *__stdinp;
200	extern FILE *__stdoutp;
201	extern FILE *__stderrp;
202	__END_DECLS
203
204	#endif /* bird: EMX specific FILE stuff ends. */
205
206
207	/*
208	* The following three definitions are for ANSI C, which took them
209	* from System V, which brilliantly took internal interface macros and
210	* made them official arguments to setvbuf(), without renaming them.
211	* Hence, these ugly _IOxxx names are supposed to appear in user code.
212	*
213	* Although numbered as their counterparts above, the implementation
214	* does not rely on this.
215	*/
216	#define _IOFBF 0 /* setvbuf should set fully buffered */
217	#define _IOLBF 0x20 /* bird: emx, was 1 / / setvbuf should set line buffered */
218	#define _IONBF 0x40 /* bird: emx, was 2 / / setvbuf should set unbuffered */
219
220	#define BUFSIZ 8192 /* bird: emx, was 1024 / / size of buffer used by setbuf */
221	#define EOF (-1)
222
223	/*
224	* FOPEN_MAX is a minimum maximum, and is the number of streams that
225	* stdio can provide without attempting to allocate further resources
226	* (which could fail). Do not use this for anything.
227	*/
228	/* must be == _POSIX_STREAM_MAX <limits.h> */
229	#define FOPEN_MAX 14 /* bird: emx, was 20 / / must be <= OPEN_MAX <sys/syslimits.h> */
230	#define FILENAME_MAX 260 /* bird: emx, was 1024 / / must be <= PATH_MAX <sys/syslimits.h> */
231
232	/* System V/ANSI C; this is the wrong way to do this, do not use these. */
233	#if __XSI_VISIBLE
234	#define P_tmpdir "." /* bird: emx, was "/var/tmp/" */
235	#endif
236	#define L_tmpnam 260 /* bird: emx, was 1024 / / XXX must be == PATH_MAX */
237	#define TMP_MAX 1000 /* bird: emx, was 308915776 */
238
239	#ifndef SEEK_SET
240	#define SEEK_SET 0 /* set file offset to offset */
241	#endif
242	#ifndef SEEK_CUR
243	#define SEEK_CUR 1 /* set file offset to current plus offset */
244	#endif
245	#ifndef SEEK_END
246	#define SEEK_END 2 /* set file offset to EOF plus offset */
247	#endif
248
249	#define stdin __stdinp
250	#define stdout __stdoutp
251	#define stderr __stderrp
252
253	__BEGIN_DECLS
254	/*
255	* Functions defined in ANSI C standard.
256	*/
257	void clearerr(FILE *);
258	int fclose(FILE *);
259	int feof(FILE *);
260	int ferror(FILE *);
261	int fflush(FILE *);
262	int fgetc(FILE *);
263	int fgetpos(FILE * __restrict, fpos_t * __restrict);
264	char fgets(char __restrict, int, FILE * __restrict);
265	FILE fopen(const char __restrict, const char * __restrict);
266	int fprintf(FILE * __restrict, const char * __restrict, ...);
267	int fputc(int, FILE *);
268	int fputs(const char * __restrict, FILE * __restrict);
269	size_t fread(void * __restrict, size_t, size_t, FILE * __restrict);
270	FILE freopen(const char __restrict, const char * __restrict, FILE * __restrict);
271	int fscanf(FILE * __restrict, const char * __restrict, ...);
272	int fseek(FILE *, long, int);
273	int fsetpos(FILE , const fpos_t );
274	long ftell(FILE *);
275	size_t fwrite(const void * __restrict, size_t, size_t, FILE * __restrict);
276	#if 0 /* bird: emx */
277	int getc(FILE *);
278	#else /* bird: emx */
279	/** @todo: Check the standard, if this is correct or not. declaration might be required. */
280	#define getc(s) fgetc(s) /* bird: emx */
281	#endif /* bird: emx */
282	int getchar(void);
283	char gets(char );
284	void perror(const char *);
285	int printf(const char * __restrict, ...);
286	#if 0 /* bird: emx */
287	int putc(int, FILE *);
288	#else /* bird: emx */
289	/** @todo: Check the standard, if this is correct or not. declaration might be required. */
290	#define putc(c,s) fputc(c,s) /* bird: emx */
291	#endif /* bird: emx */
292	int putchar(int);
293	int puts(const char *);
294	int remove(const char *);
295	int rename(const char , const char );
296	void rewind(FILE *);
297	int scanf(const char * __restrict, ...);
298	void setbuf(FILE * __restrict, char * __restrict);
299	int setvbuf(FILE * __restrict, char * __restrict, int, size_t);
300	int sprintf(char * __restrict, const char * __restrict, ...);
301	int sscanf(const char * __restrict, const char * __restrict, ...);
302	FILE *tmpfile(void);
303	char tmpnam(char );
304	int ungetc(int, FILE *);
305	int vfprintf(FILE * __restrict, const char * __restrict,
306	__va_list);
307	int vprintf(const char * __restrict, __va_list);
308	int vsprintf(char * __restrict, const char * __restrict,
309	__va_list);
310
311	#if __ISO_C_VISIBLE >= 1999
312	int snprintf(char * __restrict, size_t, const char * __restrict,
313	...) __printflike(3, 4);
314	int vfscanf(FILE * __restrict, const char * __restrict, __va_list)
315	__scanflike(2, 0);
316	int vscanf(const char * __restrict, __va_list) __scanflike(1, 0);
317	int vsnprintf(char * __restrict, size_t, const char * __restrict,
318	__va_list) __printflike(3, 0);
319	int vsscanf(const char * __restrict, const char * __restrict, __va_list)
320	__scanflike(2, 0);
321	#endif
322
323	/*
324	* Functions defined in all versions of POSIX 1003.1.
325	*/
326	#if __BSD_VISIBLE \|\| __POSIX_VISIBLE <= 199506
327	/* size for cuserid(3); UT_NAMESIZE + 1, see <utmp.h> */
328	#define L_cuserid 9 /* bird: emx, was 17 / / legacy */
329	#endif
330
331	#if __POSIX_VISIBLE
332	#define L_ctermid 260 /* bird: emx, was 1024 / / size for ctermid(3); PATH_MAX */
333
334	/** @todo char ctermid(char ); */
335	FILE fdopen(int, const char );
336	int fileno(FILE *);
337	#endif /* __POSIX_VISIBLE */
338
339	#if __POSIX_VISIBLE >= 199209
340	int pclose(FILE *);
341	FILE popen(const char , const char *);
342	#endif
343
344	#if __POSIX_VISIBLE >= 199506
345	/** @todo int ftrylockfile(FILE ); /
346	/** @todo void flockfile(FILE ); /
347	/** @todo void funlockfile(FILE ); /
348
349	/*
350	* These are normally used through macros as defined below, but POSIX
351	* requires functions as well.
352	*/
353	/** @todo int getc_unlocked(FILE ); /
354	/** @todo int getchar_unlocked(void); */
355	/** @todo int putc_unlocked(int, FILE ); /
356	/** @todo int putchar_unlocked(int); */
357	#endif
358	#if __BSD_VISIBLE
359	/** @todo void clearerr_unlocked(FILE ); /
360	/** @todo int feof_unlocked(FILE ); /
361	/** @todo int ferror_unlocked(FILE ); /
362	/** @todo int fileno_unlocked(FILE ); /
363	#endif
364
365	#if __POSIX_VISIBLE >= 200112
366	int fseeko(FILE *, __off_t, int);
367	__off_t ftello(FILE *);
368	#endif
369
370	#if __BSD_VISIBLE \|\| __XSI_VISIBLE > 0 && __XSI_VISIBLE < 600
371	int getw(FILE *);
372	int putw(int, FILE *);
373	#endif /* BSD or X/Open before issue 6 */
374
375	#if __XSI_VISIBLE
376	char tempnam(const char , const char *);
377	#endif
378
379	/*
380	* Routines that are purely local.
381	*/
382	#if __BSD_VISIBLE
383	/ @todo int asprintf(char , const char , ...) __printflike(2, 3); /
384	/** @todo char ctermid_r(char ); */
385	/** @todo char fgetln(FILE , size_t ); /
386	#if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 \|\| __GNUC__ >= 3
387	#define __ATTR_FORMAT_ARG __attribute__((__format_arg__(2)))
388	#else
389	#define __ATTR_FORMAT_ARG
390	#endif
391	/** @todo __const char fmtcheck(const char , const char ) __ATTR_FORMAT_ARG; /
392	/** @todo int fpurge(FILE ); /
393	void setbuffer(FILE , char , int);
394	/** @todo int setlinebuf(FILE ); /
395	/ @todo int vasprintf(char , const char *, __va_list)
396	__printflike(2, 0); */
397
398	/*
399	* The system error table contains messages for the first sys_nerr
400	* positive errno values. Use strerror() or strerror_r() from <string.h>
401	* instead.
402	*/
403	extern __const int sys_nerr;
404	extern __const char *__const sys_errlist[];
405
406	/*
407	* Stdio function-access interface.
408	*/
409	/** @todo FILE funopen(const void ,
410	int ()(void , char *, int),
411	int ()(void , const char *, int),
412	fpos_t ()(void , fpos_t, int),
413	int ()(void )); */
414	/** @todo #define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0) */
415	/** @todo #define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0) */
416
417	/*
418	* Portability hacks. See <sys/types.h>.
419	*/
420	#ifndef _FTRUNCATE_DECLARED
421	#define _FTRUNCATE_DECLARED
422	int ftruncate(int, __off_t);
423	#endif
424	#ifndef _LSEEK_DECLARED
425	#define _LSEEK_DECLARED
426	__off_t lseek(int, __off_t, int);
427	#endif
428	#ifndef _MMAP_DECLARED
429	#define _MMAP_DECLARED
430	void mmap(void , size_t, int, int, int, __off_t);
431	#endif
432	#ifndef _TRUNCATE_DECLARED
433	#define _TRUNCATE_DECLARED
434	int truncate(const char *, __off_t);
435	#endif
436	#endif /* __BSD_VISIBLE */
437
438	#if 0 /* bird: Skip FreeBSD sepcific LIBC stuff. */
439	/*
440	* Functions internal to the implementation.
441	*/
442	int __srget(FILE *);
443	int __swbuf(int, FILE *);
444
445	/*
446	* The __sfoo macros are here so that we can
447	* define function versions in the C library.
448	*/
449	#define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
450	#if defined(__GNUC__) && defined(__STDC__)
451	static __inline int __sputc(int _c, FILE *_p) {
452	if (--_p->_w >= 0 \|\| (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
453	return (*_p->_p++ = _c);
454	else
455	return (__swbuf(_c, _p));
456	}
457	#else
458	/*
459	* This has been tuned to generate reasonable code on the vax using pcc.
460	*/
461	#define __sputc(c, p) \
462	(--(p)->_w < 0 ? \
463	(p)->_w >= (p)->_lbfsize ? \
464	((p)->_p = (c)), (p)->_p != '\n' ? \
465	(int)*(p)->_p++ : \
466	__swbuf('\n', p) : \
467	__swbuf((int)(c), p) : \
468	((p)->_p = (c), (int)(p)->_p++))
469	#endif
470
471	#define __sfeof(p) (((p)->_flags & __SEOF) != 0)
472	#define __sferror(p) (((p)->_flags & __SERR) != 0)
473	#define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR\|__SEOF)))
474	#define __sfileno(p) ((p)->_file)
475
476	#if __BSD_VISIBLE
477	/*
478	* See ISO/IEC 9945-1 ANSI/IEEE Std 1003.1 Second Edition 1996-07-12
479	* B.8.2.7 for the rationale behind the *_unlocked() macros.
480	*/
481	#define feof_unlocked(p) __sfeof(p)
482	#define ferror_unlocked(p) __sferror(p)
483	#define clearerr_unlocked(p) __sclearerr(p)
484	#define fileno_unlocked(p) __sfileno(p)
485	#endif
486	#if __POSIX_VISIBLE >= 199506
487	#define getc_unlocked(fp) __sgetc(fp)
488	#define putc_unlocked(x, fp) __sputc(x, fp)
489
490	#define getchar_unlocked() getc_unlocked(stdin)
491	#define putchar_unlocked(x) putc_unlocked(x, stdout)
492	#endif
493
494	#endif /* bird: Skip FreeBSD sepcific LIBC stuff. */
495
496
497	/* bird: start of EMX isms. */
498
499	#if !defined (_IOREAD)
500	/** @todo change to double underscore prefix to prevent confusion with
501	* setvbuf() constants. See the short rant about it above. */
502	#define _IOREAD 0x01
503	#define _IOWRT 0x02
504	#define _IORW 0x04
505	#define _IOEOF 0x08
506	#define _IOERR 0x10
507	#endif
508
509	int _fill (FILE *);
510	int _flush (int, FILE *);
511	int _rmtmp (void);
512
513	extern __inline__ int feof (FILE *_s)
514	{
515	return (_s->_flags & _IOEOF ? 1 : 0);
516	}
517
518	extern __inline__ int ferror (FILE *_s)
519	{
520	return (_s->_flags & _IOERR ? 1 : 0);
521	}
522
523	extern __inline__ int getchar (void) { return getc (stdin); }
524	extern __inline__ int putchar (int _c) { return putc (_c, stdout); }
525
526	#if !defined (__STRICT_ANSI__) && !defined (_POSIX_SOURCE) \|\| defined(__USE_EMX)
527
528	char cuserid (char );
529	int fcloseall (void);
530	int fgetchar (void);
531	int flushall (void);
532	int fputchar (int);
533
534	#endif
535
536
537	#if (!defined (__STRICT_ANSI__) && !defined (_POSIX_SOURCE)) \|\| defined (_WITH_UNDERSCORE) \|\| defined(__USE_EMX)
538
539	int _fcloseall (void);
540	FILE _fassign (FILE , FILE *);
541	FILE _fdopen (int, __const__ char );
542	int _fgetchar (void);
543	int _flushall (void);
544	int _fputchar (int);
545	int _fseek_hdr (FILE *);
546	int _fsetmode (FILE , __const__ char );
547	FILE _fsopen (__const__ char , __const__ char *, int);
548	int _getw (FILE *);
549	char _mfclose (FILE );
550	FILE _mfopen (char , __const__ char *, size_t, int);
551	int _pclose (FILE *);
552	FILE _popen (__const__ char , __const__ char *);
553	int _putw (int, FILE *);
554	void _setbuffer (FILE , char , int);
555	int _snprintf (char , size_t, __const__ char , ...);
556	char _tempnam (__const__ char , __const__ char *);
557	int _vsnprintf (char , size_t, __const__ char , va_list);
558
559	#endif
560	/* bird: end of EMX isms. */
561
562	__END_DECLS
563	#endif /* !_STDIO_H_ */
564

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