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Root/tags/2.0/i386/include/stdio.h

Source at commit 1808 created 12 years 3 months ago.
By blackosx, Revise layout of package installer 'Welcome' file so it looks cleaner. Change the copyright notice to begin from 2009 as seen in the Chameleon 2.0 r431 installer. Should this date be set earlier?
1/*␊
2 * Copyright (c) 2000, 2005, 2007, 2009 Apple Inc. All rights reserved.␊
3 *␊
4 * @APPLE_LICENSE_HEADER_START@␊
5 *␊
6 * This file contains Original Code and/or Modifications of Original Code␊
7 * as defined in and that are subject to the Apple Public Source License␊
8 * Version 2.0 (the 'License'). You may not use this file except in␊
9 * compliance with the License. Please obtain a copy of the License at␊
10 * http://www.opensource.apple.com/apsl/ and read it before using this␊
11 * file.␊
12 *␊
13 * The Original Code and all software distributed under the License are␊
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊
18 * Please see the License for the specific language governing rights and␊
19 * limitations under the License.␊
20 *␊
21 * @APPLE_LICENSE_HEADER_END@␊
22 */␊
23/*-␊
24 * Copyright (c) 1990, 1993␊
25 *␉The Regents of the University of California. All rights reserved.␊
26 *␊
27 * This code is derived from software contributed to Berkeley by␊
28 * Chris Torek.␊
29 *␊
30 * Redistribution and use in source and binary forms, with or without␊
31 * modification, are permitted provided that the following conditions␊
32 * are met:␊
33 * 1. Redistributions of source code must retain the above copyright␊
34 * notice, this list of conditions and the following disclaimer.␊
35 * 2. Redistributions in binary form must reproduce the above copyright␊
36 * notice, this list of conditions and the following disclaimer in the␊
37 * documentation and/or other materials provided with the distribution.␊
38 * 3. All advertising materials mentioning features or use of this software␊
39 * must display the following acknowledgement:␊
40 *␉This product includes software developed by the University of␊
41 *␉California, Berkeley and its contributors.␊
42 * 4. Neither the name of the University nor the names of its contributors␊
43 * may be used to endorse or promote products derived from this software␊
44 * without specific prior written permission.␊
45 *␊
46 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND␊
47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE␊
48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE␊
49 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE␊
50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL␊
51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS␊
52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)␊
53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT␊
54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY␊
55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF␊
56 * SUCH DAMAGE.␊
57 *␊
58 *␉@(#)stdio.h␉8.5 (Berkeley) 4/29/95␊
59 */␊
60␊
61#ifndef␉_STDIO_H_␊
62#define␉_STDIO_H_␊
63␊
64#include <_types.h>␊
65␊
66#ifndef _VA_LIST␊
67#define _VA_LIST␊
68/* DO NOT REMOVE THIS COMMENT: fixincludes needs to see:␊
69 * __gnuc_va_list and include <stdarg.h> */␊
70typedef __darwin_va_list␉va_list;␊
71#endif␊
72␊
73#ifndef␉_OFF_T␊
74#define␉_OFF_T␊
75typedef␉__darwin_off_t␉␉off_t;␊
76#endif␊
77␊
78#ifndef␉_SIZE_T␊
79#define␉_SIZE_T␊
80typedef␉__darwin_size_t␉␉size_t;␊
81#endif␊
82␊
83#ifndef NULL␊
84#define NULL __DARWIN_NULL␊
85#endif /* ! NULL */␊
86␊
87typedef __darwin_off_t␉␉fpos_t;␊
88␊
89#define␉_FSTDIO␉␉␉/* Define for new stdio with functions. */␊
90␊
91/*␊
92 * NB: to fit things in six character monocase externals, the stdio␊
93 * code uses the prefix `__s' for stdio objects, typically followed␊
94 * by a three-character attempt at a mnemonic.␊
95 */␊
96␊
97/* stdio buffers */␊
98struct __sbuf {␊
99␉unsigned char␉*_base;␊
100␉int␉␉_size;␊
101};␊
102␊
103/* hold a buncha junk that would grow the ABI */␊
104struct __sFILEX;␊
105␊
106/*␊
107 * stdio state variables.␊
108 *␊
109 * The following always hold:␊
110 *␊
111 *␉if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),␊
112 *␉␉_lbfsize is -_bf._size, else _lbfsize is 0␊
113 *␉if _flags&__SRD, _w is 0␊
114 *␉if _flags&__SWR, _r is 0␊
115 *␊
116 * This ensures that the getc and putc macros (or inline functions) never␊
117 * try to write or read from a file that is in `read' or `write' mode.␊
118 * (Moreover, they can, and do, automatically switch from read mode to␊
119 * write mode, and back, on "r+" and "w+" files.)␊
120 *␊
121 * _lbfsize is used only to make the inline line-buffered output stream␊
122 * code as compact as possible.␊
123 *␊
124 * _ub, _up, and _ur are used when ungetc() pushes back more characters␊
125 * than fit in the current _bf, or when ungetc() pushes back a character␊
126 * that does not match the previous one in _bf. When this happens,␊
127 * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff␊
128 * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.␊
129 *␊
130 * NB: see WARNING above before changing the layout of this structure!␊
131 */␊
132typedef␉struct __sFILE {␊
133␉unsigned char *_p;␉/* current position in (some) buffer */␊
134␉int␉_r;␉␉/* read space left for getc() */␊
135␉int␉_w;␉␉/* write space left for putc() */␊
136␉short␉_flags;␉␉/* flags, below; this FILE is free if 0 */␊
137␉short␉_file;␉␉/* fileno, if Unix descriptor, else -1 */␊
138␉struct␉__sbuf _bf;␉/* the buffer (at least 1 byte, if !NULL) */␊
139␉int␉_lbfsize;␉/* 0 or -_bf._size, for inline putc */␊
140␊
141␉/* operations */␊
142␉void␉*_cookie;␉/* cookie passed to io functions */␊
143␉int␉(*_close)(void *);␊
144␉int␉(*_read) (void *, char *, int);␊
145␉fpos_t␉(*_seek) (void *, fpos_t, int);␊
146␉int␉(*_write)(void *, const char *, int);␊
147␊
148␉/* separate buffer for long sequences of ungetc() */␊
149␉struct␉__sbuf _ub;␉/* ungetc buffer */␊
150␉struct __sFILEX *_extra; /* additions to FILE to not break ABI */␊
151␉int␉_ur;␉␉/* saved _r when _r is counting ungetc data */␊
152␊
153␉/* tricks to meet minimum requirements even when malloc() fails */␊
154␉unsigned char _ubuf[3];␉/* guarantee an ungetc() buffer */␊
155␉unsigned char _nbuf[1];␉/* guarantee a getc() buffer */␊
156␊
157␉/* separate buffer for fgetln() when line crosses buffer boundary */␊
158␉struct␉__sbuf _lb;␉/* buffer for fgetln() */␊
159␊
160␉/* Unix stdio files get aligned to block boundaries on fseek() */␊
161␉int␉_blksize;␉/* stat.st_blksize (may be != _bf._size) */␊
162␉fpos_t␉_offset;␉/* current lseek offset (see WARNING) */␊
163} FILE;␊
164␊
165__BEGIN_DECLS␊
166#if __DARWIN_UNIX03␊
167extern FILE *__stdinp;␊
168extern FILE *__stdoutp;␊
169extern FILE *__stderrp;␊
170#else /* !__DARWIN_UNIX03 */␊
171extern FILE __sF[];␊
172#endif /* __DARWIN_UNIX03 */␊
173__END_DECLS␊
174␊
175#define␉__SLBF␉0x0001␉␉/* line buffered */␊
176#define␉__SNBF␉0x0002␉␉/* unbuffered */␊
177#define␉__SRD␉0x0004␉␉/* OK to read */␊
178#define␉__SWR␉0x0008␉␉/* OK to write */␊
179␉/* RD and WR are never simultaneously asserted */␊
180#define␉__SRW␉0x0010␉␉/* open for reading & writing */␊
181#define␉__SEOF␉0x0020␉␉/* found EOF */␊
182#define␉__SERR␉0x0040␉␉/* found error */␊
183#define␉__SMBF␉0x0080␉␉/* _buf is from malloc */␊
184#define␉__SAPP␉0x0100␉␉/* fdopen()ed in append mode */␊
185#define␉__SSTR␉0x0200␉␉/* this is an sprintf/snprintf string */␊
186#define␉__SOPT␉0x0400␉␉/* do fseek() optimisation */␊
187#define␉__SNPT␉0x0800␉␉/* do not do fseek() optimisation */␊
188#define␉__SOFF␉0x1000␉␉/* set iff _offset is in fact correct */␊
189#define␉__SMOD␉0x2000␉␉/* true => fgetln modified _p text */␊
190#define __SALC 0x4000␉␉/* allocate string space dynamically */␊
191#define __SIGN 0x8000␉␉/* ignore this file in _fwalk */␊
192␊
193/*␊
194 * The following three definitions are for ANSI C, which took them␊
195 * from System V, which brilliantly took internal interface macros and␊
196 * made them official arguments to setvbuf(), without renaming them.␊
197 * Hence, these ugly _IOxxx names are *supposed* to appear in user code.␊
198 *␊
199 * Although numbered as their counterparts above, the implementation␊
200 * does not rely on this.␊
201 */␊
202#define␉_IOFBF␉0␉␉/* setvbuf should set fully buffered */␊
203#define␉_IOLBF␉1␉␉/* setvbuf should set line buffered */␊
204#define␉_IONBF␉2␉␉/* setvbuf should set unbuffered */␊
205␊
206#define␉BUFSIZ␉1024␉␉/* size of buffer used by setbuf */␊
207#define␉EOF␉(-1)␊
208␊
209/*␊
210 * FOPEN_MAX is a minimum maximum, and is the number of streams that␊
211 * stdio can provide without attempting to allocate further resources␊
212 * (which could fail). Do not use this for anything.␊
213 */␊
214␉␉␉␉/* must be == _POSIX_STREAM_MAX <limits.h> */␊
215#define␉FOPEN_MAX␉20␉/* must be <= OPEN_MAX <sys/syslimits.h> */␊
216#define␉FILENAME_MAX␉1024␉/* must be <= PATH_MAX <sys/syslimits.h> */␊
217␊
218/* System V/ANSI C; this is the wrong way to do this, do *not* use these. */␊
219#ifndef _ANSI_SOURCE␊
220#define␉P_tmpdir␉"/var/tmp/"␊
221#endif␊
222#define␉L_tmpnam␉1024␉/* XXX must be == PATH_MAX */␊
223#define␉TMP_MAX␉␉308915776␊
224␊
225#ifndef SEEK_SET␊
226#define␉SEEK_SET␉0␉/* set file offset to offset */␊
227#endif␊
228#ifndef SEEK_CUR␊
229#define␉SEEK_CUR␉1␉/* set file offset to current plus offset */␊
230#endif␊
231#ifndef SEEK_END␊
232#define␉SEEK_END␉2␉/* set file offset to EOF plus offset */␊
233#endif␊
234␊
235#if __DARWIN_UNIX03␊
236#define␉stdin␉__stdinp␊
237#define␉stdout␉__stdoutp␊
238#define␉stderr␉__stderrp␊
239#else /* !__DARWIN_UNIX03 */␊
240#define stdin␉(&__sF[0])␊
241#define stdout␉(&__sF[1])␊
242#define stderr␉(&__sF[2])␊
243#endif /* __DARWIN_UNIX03 */␊
244␊
245/*␊
246 * Functions defined in ANSI C standard.␊
247 */␊
248__BEGIN_DECLS␊
249void␉ clearerr(FILE *);␊
250int␉ fclose(FILE *);␊
251int␉ feof(FILE *);␊
252int␉ ferror(FILE *);␊
253int␉ fflush(FILE *);␊
254int␉ fgetc(FILE *);␊
255int␉ fgetpos(FILE * __restrict, fpos_t *);␊
256char␉*fgets(char * __restrict, int, FILE *);␊
257#if defined(__DARWIN_10_6_AND_LATER) && (defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE))␊
258FILE␉*fopen(const char * __restrict, const char * __restrict) __DARWIN_EXTSN(fopen);␊
259#else /* < 10.6 || !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */␊
260//Begin-Libc␊
261#ifndef LIBC_ALIAS_FOPEN␊
262//End-Libc␊
263FILE␉*fopen(const char * __restrict, const char * __restrict) __DARWIN_10_6_AND_LATER_ALIAS(__DARWIN_ALIAS(fopen));␊
264//Begin-Libc␊
265#else /* LIBC_ALIAS_FOPEN */␊
266FILE␉*fopen(const char * __restrict, const char * __restrict) LIBC_ALIAS(fopen);␊
267#endif /* !LIBC_ALIAS_FOPEN */␊
268//End-Libc␊
269#endif /* >= 10.6 &&_(DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */␊
270int␉ fprintf(FILE * __restrict, const char * __restrict, ...) __DARWIN_LDBL_COMPAT(fprintf);␊
271int␉ fputc(int, FILE *);␊
272//Begin-Libc␊
273#ifndef LIBC_ALIAS_FPUTS␊
274//End-Libc␊
275int␉ fputs(const char * __restrict, FILE * __restrict) __DARWIN_ALIAS(fputs);␊
276//Begin-Libc␊
277#else /* LIBC_ALIAS_FPUTS */␊
278int␉ fputs(const char * __restrict, FILE * __restrict) LIBC_ALIAS(fputs);␊
279#endif /* !LIBC_ALIAS_FPUTS */␊
280//End-Libc␊
281size_t␉ fread(void * __restrict, size_t, size_t, FILE * __restrict);␊
282//Begin-Libc␊
283#ifndef LIBC_ALIAS_FREOPEN␊
284//End-Libc␊
285FILE␉*freopen(const char * __restrict, const char * __restrict,␊
286␉ FILE * __restrict) __DARWIN_ALIAS(freopen);␊
287//Begin-Libc␊
288#else /* LIBC_ALIAS_FREOPEN */␊
289FILE␉*freopen(const char * __restrict, const char * __restrict,␊
290␉ FILE * __restrict) LIBC_ALIAS(freopen);␊
291#endif /* !LIBC_ALIAS_FREOPEN */␊
292//End-Libc␊
293int␉ fscanf(FILE * __restrict, const char * __restrict, ...) __DARWIN_LDBL_COMPAT(fscanf);␊
294int␉ fseek(FILE *, long, int);␊
295int␉ fsetpos(FILE *, const fpos_t *);␊
296long␉ ftell(FILE *);␊
297//Begin-Libc␊
298#ifndef LIBC_ALIAS_FWRITE␊
299//End-Libc␊
300size_t␉ fwrite(const void * __restrict, size_t, size_t, FILE * __restrict) __DARWIN_ALIAS(fwrite);␊
301//Begin-Libc␊
302#else /* LIBC_ALIAS_FWRITE */␊
303size_t␉ fwrite(const void * __restrict, size_t, size_t, FILE * __restrict) LIBC_ALIAS(fwrite);␊
304#endif /* !LIBC_ALIAS_FWRITE */␊
305//End-Libc␊
306int␉ getc(FILE *);␊
307int␉ getchar(void);␊
308char␉*gets(char *);␊
309#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))␊
310extern __const int sys_nerr;␉␉/* perror(3) external variables */␊
311extern __const char *__const sys_errlist[];␊
312#endif␊
313void␉ perror(const char *);␊
314int␉ printf(const char * __restrict, ...) __DARWIN_LDBL_COMPAT(printf);␊
315int␉ putc(int, FILE *);␊
316int␉ putchar(int);␊
317int␉ puts(const char *);␊
318int␉ remove(const char *);␊
319int␉ rename (const char *, const char *);␊
320void␉ rewind(FILE *);␊
321int␉ scanf(const char * __restrict, ...) __DARWIN_LDBL_COMPAT(scanf);␊
322void␉ setbuf(FILE * __restrict, char * __restrict);␊
323int␉ setvbuf(FILE * __restrict, char * __restrict, int, size_t);␊
324int␉ sprintf(char * __restrict, const char * __restrict, ...) __DARWIN_LDBL_COMPAT(sprintf);␊
325int␉ sscanf(const char * __restrict, const char * __restrict, ...) __DARWIN_LDBL_COMPAT(sscanf);␊
326FILE␉*tmpfile(void);␊
327char␉*tmpnam(char *);␊
328int␉ ungetc(int, FILE *);␊
329int␉ vfprintf(FILE * __restrict, const char * __restrict, va_list) __DARWIN_LDBL_COMPAT(vfprintf);␊
330int␉ vprintf(const char * __restrict, va_list) __DARWIN_LDBL_COMPAT(vprintf);␊
331int␉ vsprintf(char * __restrict, const char * __restrict, va_list) __DARWIN_LDBL_COMPAT(vsprintf);␊
332#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))␊
333int␉ asprintf(char **, const char *, ...) __DARWIN_LDBL_COMPAT(asprintf);␊
334int␉ vasprintf(char **, const char *, va_list) __DARWIN_LDBL_COMPAT(vasprintf);␊
335#endif␊
336__END_DECLS␊
337␊
338/*␊
339 * Functions defined in POSIX 1003.1.␊
340 */␊
341#ifndef _ANSI_SOURCE␊
342#define␉L_ctermid␉1024␉/* size for ctermid(); PATH_MAX */␊
343␊
344__BEGIN_DECLS␊
345char␉*ctermid(char *);␊
346#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
347char␉*ctermid_r(char *);␊
348#endif /* not POSIX */␊
349#if defined(__DARWIN_10_6_AND_LATER) && (defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE))␊
350FILE␉*fdopen(int, const char *) __DARWIN_EXTSN(fdopen);␊
351#else /* < 10.6 || !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */␊
352//Begin-Libc␊
353#ifndef LIBC_ALIAS_FDOPEN␊
354//End-Libc␊
355FILE␉*fdopen(int, const char *) __DARWIN_10_6_AND_LATER_ALIAS(__DARWIN_ALIAS(fdopen));␊
356//Begin-Libc␊
357#else /* LIBC_ALIAS_FDOPEN */␊
358FILE␉*fdopen(int, const char *) LIBC_ALIAS(fdopen);␊
359#endif /* !LIBC_ALIAS_FDOPEN */␊
360//End-Libc␊
361#endif /* >= 10.6 &&_(DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */␊
362#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
363char␉*fgetln(FILE *, size_t *);␊
364#endif /* not POSIX */␊
365int␉ fileno(FILE *);␊
366void␉ flockfile(FILE *);␊
367#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
368__const char␊
369␉*fmtcheck(const char *, const char *);␊
370int␉ fpurge(FILE *);␊
371#endif /* not POSIX */␊
372int␉ fseeko(FILE *, off_t, int);␊
373off_t␉ ftello(FILE *);␊
374int␉ ftrylockfile(FILE *);␊
375void␉ funlockfile(FILE *);␊
376int␉ getc_unlocked(FILE *);␊
377int␉ getchar_unlocked(void);␊
378#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
379int␉ getw(FILE *);␊
380#endif /* not POSIX */␊
381int␉ pclose(FILE *);␊
382#if defined(__DARWIN_10_6_AND_LATER) && (defined(_DARWIN_UNLIMITED_STREAMS) || defined(_DARWIN_C_SOURCE))␊
383FILE␉*popen(const char *, const char *) __DARWIN_EXTSN(popen);␊
384#else /* < 10.6 || !_DARWIN_UNLIMITED_STREAMS && !_DARWIN_C_SOURCE */␊
385//Begin-Libc␊
386#ifndef LIBC_ALIAS_POPEN␊
387//End-Libc␊
388FILE␉*popen(const char *, const char *) __DARWIN_10_6_AND_LATER_ALIAS(__DARWIN_ALIAS(popen));␊
389//Begin-Libc␊
390#else /* LIBC_ALIAS_POPEN */␊
391FILE␉*popen(const char *, const char *) LIBC_ALIAS(popen);␊
392#endif /* !LIBC_ALIAS_POPEN */␊
393//End-Libc␊
394#endif /* >= 10.6 &&_(DARWIN_UNLIMITED_STREAMS || _DARWIN_C_SOURCE) */␊
395int␉ putc_unlocked(int, FILE *);␊
396int␉ putchar_unlocked(int);␊
397#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
398int␉ putw(int, FILE *);␊
399void␉ setbuffer(FILE *, char *, int);␊
400int␉ setlinebuf(FILE *);␊
401#endif /* not POSIX */␊
402int␉ snprintf(char * __restrict, size_t, const char * __restrict, ...) __DARWIN_LDBL_COMPAT(snprintf);␊
403//Begin-Libc␊
404#ifndef LIBC_ALIAS_TEMPNAM␊
405//End-Libc␊
406char␉*tempnam(const char *, const char *) __DARWIN_ALIAS(tempnam);␊
407//Begin-Libc␊
408#else /* LIBC_ALIAS_TEMPNAM */␊
409char␉*tempnam(const char *, const char *) LIBC_ALIAS(tempnam);␊
410#endif /* !LIBC_ALIAS_TEMPNAM */␊
411//End-Libc␊
412int␉ vfscanf(FILE * __restrict, const char * __restrict, va_list) __DARWIN_LDBL_COMPAT(vfscanf);␊
413int␉ vscanf(const char * __restrict, va_list) __DARWIN_LDBL_COMPAT(vscanf);␊
414int␉ vsnprintf(char * __restrict, size_t, const char * __restrict, va_list) __DARWIN_LDBL_COMPAT(vsnprintf);␊
415int␉ vsscanf(const char * __restrict, const char * __restrict, va_list) __DARWIN_LDBL_COMPAT(vsscanf);␊
416#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
417FILE␉*zopen(const char *, const char *, int);␊
418#endif /* not POSIX */␊
419__END_DECLS␊
420␊
421/*␊
422 * Stdio function-access interface.␊
423 */␊
424#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
425__BEGIN_DECLS␊
426FILE␉*funopen(const void *,␊
427␉␉int (*)(void *, char *, int),␊
428␉␉int (*)(void *, const char *, int),␊
429␉␉fpos_t (*)(void *, fpos_t, int),␊
430␉␉int (*)(void *));␊
431__END_DECLS␊
432#define␉fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)␊
433#define␉fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)␊
434#endif /* not POSIX */␊
435#endif /* not ANSI */␊
436␊
437/*␊
438 * Functions internal to the implementation.␊
439 */␊
440__BEGIN_DECLS␊
441int␉__srget(FILE *);␊
442int␉__svfscanf(FILE *, const char *, va_list) __DARWIN_LDBL_COMPAT(__svfscanf);␊
443int␉__swbuf(int, FILE *);␊
444__END_DECLS␊
445␊
446/*␊
447 * The __sfoo macros are here so that we can␊
448 * define function versions in the C library.␊
449 */␊
450#define␉__sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))␊
451#if defined(__GNUC__) && defined(__STDC__)␊
452static __inline int __sputc(int _c, FILE *_p) {␊
453␉if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))␊
454␉␉return (*_p->_p++ = _c);␊
455␉else␊
456␉␉return (__swbuf(_c, _p));␊
457}␊
458#else␊
459/*␊
460 * This has been tuned to generate reasonable code on the vax using pcc.␊
461 */␊
462#define␉__sputc(c, p) \␊
463␉(--(p)->_w < 0 ? \␊
464␉␉(p)->_w >= (p)->_lbfsize ? \␊
465␉␉␉(*(p)->_p = (c)), *(p)->_p != '\n' ? \␊
466␉␉␉␉(int)*(p)->_p++ : \␊
467␉␉␉␉__swbuf('\n', p) : \␊
468␉␉␉__swbuf((int)(c), p) : \␊
469␉␉(*(p)->_p = (c), (int)*(p)->_p++))␊
470#endif␊
471␊
472#define␉__sfeof(p)␉(((p)->_flags & __SEOF) != 0)␊
473#define␉__sferror(p)␉(((p)->_flags & __SERR) != 0)␊
474#define␉__sclearerr(p)␉((void)((p)->_flags &= ~(__SERR|__SEOF)))␊
475#define␉__sfileno(p)␉((p)->_file)␊
476␊
477#ifndef _ANSI_SOURCE␊
478#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)␊
479#define␉feof_unlocked(p)␉__sfeof(p)␊
480#define␉ferror_unlocked(p)␉__sferror(p)␊
481#define␉clearerr_unlocked(p)␉__sclearerr(p)␊
482#define␉fileno_unlocked(p)␉__sfileno(p)␊
483#endif /* not POSIX */␊
484␊
485#ifndef lint␊
486#define␉getc_unlocked(fp)␉__sgetc(fp)␊
487#define putc_unlocked(x, fp)␉__sputc(x, fp)␊
488#endif /* lint */␊
489␊
490#define␉getchar_unlocked()␉getc_unlocked(stdin)␊
491#define␉putchar_unlocked(x)␉putc_unlocked(x, stdout)␊
492#endif /* not ANSI */␊
493␊
494#ifdef _USE_EXTENDED_LOCALES_␊
495#include <xlocale/_stdio.h>␊
496#endif /* _USE_EXTENDED_LOCALES_ */␊
497␊
498#if defined (__GNUC__) && _FORTIFY_SOURCE > 0 && !defined (__cplusplus)␊
499/* Security checking functions. */␊
500#include <secure/_stdio.h>␊
501#endif␊
502␊
503#endif /* _STDIO_H_ */␊
504

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