scoutos / prex-0.9.0 / usr / include / stdio.h @ 03e9c04a
History | View | Annotate | Download (9.68 KB)
1 | 03e9c04a | Brad Neuman | /*-
|
---|---|---|---|
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. Neither the name of the University nor the names of its contributors
|
||
17 | * may be used to endorse or promote products derived from this software
|
||
18 | * without specific prior written permission.
|
||
19 | *
|
||
20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
30 | * SUCH DAMAGE.
|
||
31 | *
|
||
32 | * @(#)stdio.h 8.5 (Berkeley) 4/29/95
|
||
33 | */
|
||
34 | |||
35 | #ifndef _STDIO_H_
|
||
36 | #define _STDIO_H_
|
||
37 | |||
38 | #include <sys/types.h> |
||
39 | #include <sys/cdefs.h> |
||
40 | |||
41 | #if !defined(_SIZE_T)
|
||
42 | #define _SIZE_T
|
||
43 | typedef unsigned int size_t; /* size of something in bytes */ |
||
44 | #endif
|
||
45 | |||
46 | #include <machine/stdarg.h> |
||
47 | |||
48 | #ifndef NULL |
||
49 | #if !defined(__cplusplus)
|
||
50 | #define NULL ((void *)0) |
||
51 | #else
|
||
52 | #define NULL 0 |
||
53 | #endif
|
||
54 | #endif
|
||
55 | |||
56 | typedef off_t fpos_t;
|
||
57 | |||
58 | #define _FSTDIO /* Define for new stdio with functions. */ |
||
59 | |||
60 | /*
|
||
61 | * NB: to fit things in six character monocase externals, the stdio
|
||
62 | * code uses the prefix `__s' for stdio objects, typically followed
|
||
63 | * by a three-character attempt at a mnemonic.
|
||
64 | */
|
||
65 | |||
66 | /* stdio buffers */
|
||
67 | struct __sbuf {
|
||
68 | unsigned char *_base; |
||
69 | int _size;
|
||
70 | }; |
||
71 | |||
72 | /*
|
||
73 | * stdio state variables.
|
||
74 | *
|
||
75 | * The following always hold:
|
||
76 | *
|
||
77 | * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
|
||
78 | * _lbfsize is -_bf._size, else _lbfsize is 0
|
||
79 | * if _flags&__SRD, _w is 0
|
||
80 | * if _flags&__SWR, _r is 0
|
||
81 | *
|
||
82 | * This ensures that the getc and putc macros (or inline functions) never
|
||
83 | * try to write or read from a file that is in `read' or `write' mode.
|
||
84 | * (Moreover, they can, and do, automatically switch from read mode to
|
||
85 | * write mode, and back, on "r+" and "w+" files.)
|
||
86 | *
|
||
87 | * _lbfsize is used only to make the inline line-buffered output stream
|
||
88 | * code as compact as possible.
|
||
89 | *
|
||
90 | * _ub, _up, and _ur are used when ungetc() pushes back more characters
|
||
91 | * than fit in the current _bf, or when ungetc() pushes back a character
|
||
92 | * that does not match the previous one in _bf. When this happens,
|
||
93 | * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
|
||
94 | * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
|
||
95 | *
|
||
96 | * NB: see WARNING above before changing the layout of this structure!
|
||
97 | */
|
||
98 | typedef struct __sFILE { |
||
99 | struct __sFILE *next; /* file chain */ |
||
100 | unsigned char *_p; /* current position in (some) buffer */ |
||
101 | int _r; /* read space left for getc() */ |
||
102 | int _w; /* write space left for putc() */ |
||
103 | short _flags; /* flags, below; this FILE is free if 0 */ |
||
104 | short _file; /* fileno, if Unix descriptor, else -1 */ |
||
105 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ |
||
106 | |||
107 | /* separate buffer for long sequences of ungetc() */
|
||
108 | struct __sbuf _ub; /* ungetc buffer */ |
||
109 | unsigned char *_up; /* saved _p when _p is doing ungetc data */ |
||
110 | int _ur; /* saved _r when _r is counting ungetc data */ |
||
111 | |||
112 | /* tricks to meet minimum requirements even when malloc() fails */
|
||
113 | unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ |
||
114 | unsigned char _nbuf[1]; /* guarantee a getc() buffer */ |
||
115 | } FILE; |
||
116 | |||
117 | __BEGIN_DECLS |
||
118 | extern FILE __sF[];
|
||
119 | __END_DECLS |
||
120 | |||
121 | #define __SLBF 0x0001 /* line buffered */ |
||
122 | #define __SNBF 0x0002 /* unbuffered */ |
||
123 | #define __SRD 0x0004 /* OK to read */ |
||
124 | #define __SWR 0x0008 /* OK to write */ |
||
125 | /* RD and WR are never simultaneously asserted */
|
||
126 | #define __SRW 0x0010 /* open for reading & writing */ |
||
127 | #define __SEOF 0x0020 /* found EOF */ |
||
128 | #define __SERR 0x0040 /* found error */ |
||
129 | #define __SMBF 0x0080 /* _buf is from malloc */ |
||
130 | #define __SAPP 0x0100 /* fdopen()ed in append mode */ |
||
131 | #define __SSTR 0x0200 /* this is an sprintf/snprintf string */ |
||
132 | |||
133 | /*
|
||
134 | * The following three definitions are for ANSI C, which took them
|
||
135 | * from System V, which brilliantly took internal interface macros and
|
||
136 | * made them official arguments to setvbuf(), without renaming them.
|
||
137 | * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
|
||
138 | *
|
||
139 | * Although numbered as their counterparts above, the implementation
|
||
140 | * does not rely on this.
|
||
141 | */
|
||
142 | #define _IOFBF 0 /* setvbuf should set fully buffered */ |
||
143 | #define _IOLBF 1 /* setvbuf should set line buffered */ |
||
144 | #define _IONBF 2 /* setvbuf should set unbuffered */ |
||
145 | |||
146 | #define BUFSIZ 512 /* size of buffer used by setbuf */ |
||
147 | #define EOF (-1) |
||
148 | |||
149 | /*
|
||
150 | * FOPEN_MAX is a minimum maximum, and is the number of streams that
|
||
151 | * stdio can provide without attempting to allocate further resources
|
||
152 | * (which could fail). Do not use this for anything.
|
||
153 | */
|
||
154 | /* must be == _POSIX_STREAM_MAX <limits.h> */
|
||
155 | #define FOPEN_MAX 16 /* must be <= OPEN_MAX <sys/syslimits.h> */ |
||
156 | #define FILENAME_MAX 256 /* must be <= PATH_MAX <sys/syslimits.h> */ |
||
157 | |||
158 | /* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
|
||
159 | #ifndef _ANSI_SOURCE
|
||
160 | #define P_tmpdir "/var/tmp/" |
||
161 | #endif
|
||
162 | #define L_tmpnam 255 /* XXX must be == PATH_MAX */ |
||
163 | #define TMP_MAX 308915776 |
||
164 | |||
165 | /* access function */
|
||
166 | #define F_OK 0 /* test for existence of file */ |
||
167 | #define X_OK 0x01 /* test for execute or search permission */ |
||
168 | #define W_OK 0x02 /* test for write permission */ |
||
169 | #define R_OK 0x04 /* test for read permission */ |
||
170 | |||
171 | /* whence values for lseek(2) */
|
||
172 | #define SEEK_SET 0 /* set file offset to offset */ |
||
173 | #define SEEK_CUR 1 /* set file offset to current plus offset */ |
||
174 | #define SEEK_END 2 /* set file offset to EOF plus offset */ |
||
175 | |||
176 | #define stdin (&__sF[0]) |
||
177 | #define stdout (&__sF[1]) |
||
178 | #define stderr (&__sF[2]) |
||
179 | |||
180 | /*
|
||
181 | * Functions defined in ANSI C standard.
|
||
182 | */
|
||
183 | __BEGIN_DECLS |
||
184 | void clearerr(FILE *);
|
||
185 | int fclose(FILE *);
|
||
186 | int feof(FILE *);
|
||
187 | int ferror(FILE *);
|
||
188 | int fflush(FILE *);
|
||
189 | int fgetc(FILE *);
|
||
190 | int fgetpos(FILE *, fpos_t *);
|
||
191 | char *fgets(char *, size_t, FILE *); |
||
192 | FILE *fopen(const char *, const char *); |
||
193 | int fprintf(FILE *, const char *, ...); |
||
194 | int fputc(int, FILE *); |
||
195 | int fputs(const char *, FILE *); |
||
196 | size_t fread(void *, size_t, size_t, FILE *);
|
||
197 | FILE *freopen(const char *, const char *, FILE *); |
||
198 | int fscanf(FILE *, const char *, ...); |
||
199 | int fseek(FILE *, long, int); |
||
200 | int fsetpos(FILE *, const fpos_t *); |
||
201 | long ftell(FILE *);
|
||
202 | size_t fwrite(const void *, size_t, size_t, FILE *); |
||
203 | int getc(FILE *);
|
||
204 | int getchar(void); |
||
205 | char *gets(char *); |
||
206 | #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
|
||
207 | extern const int _sys_nerr; /* perror(3) external variables */ |
||
208 | extern const char *const _sys_errlist[]; |
||
209 | #endif
|
||
210 | void perror(const char *); |
||
211 | int printf(const char *, ...); |
||
212 | int putc(int, FILE *); |
||
213 | int putchar(int); |
||
214 | int puts(const char *); |
||
215 | int remove(const char *); |
||
216 | int rename (const char *, const char *); |
||
217 | void rewind(FILE *);
|
||
218 | int scanf(const char *, ...); |
||
219 | void setbuf(FILE *, char *); |
||
220 | int setvbuf(FILE *, char *, int, size_t); |
||
221 | int sprintf(char *, const char *, ...); |
||
222 | int sscanf(const char *, const char *, ...); |
||
223 | FILE *tmpfile(void);
|
||
224 | char *tmpnam(char *); |
||
225 | int ungetc(int, FILE *); |
||
226 | int vfprintf(FILE *, const char *, va_list); |
||
227 | int vprintf(const char *, va_list); |
||
228 | int vsprintf(char *, const char *, va_list); |
||
229 | __END_DECLS |
||
230 | |||
231 | /*
|
||
232 | * Functions defined in POSIX 1003.1.
|
||
233 | */
|
||
234 | #ifndef _ANSI_SOURCE
|
||
235 | #define L_cuserid 9 /* size for cuserid(); UT_NAMESIZE + 1 */ |
||
236 | #define L_ctermid 1024 /* size for ctermid(); PATH_MAX */ |
||
237 | |||
238 | __BEGIN_DECLS |
||
239 | char *ctermid(char *); |
||
240 | FILE *fdopen(int, const char *); |
||
241 | int fileno(FILE *);
|
||
242 | __END_DECLS |
||
243 | #endif /* not ANSI */ |
||
244 | |||
245 | /*
|
||
246 | * Routines that are purely local.
|
||
247 | */
|
||
248 | #if !defined (_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
|
||
249 | __BEGIN_DECLS |
||
250 | int fpurge(FILE *);
|
||
251 | int getw(FILE *);
|
||
252 | int pclose(FILE *);
|
||
253 | FILE *popen(const char *, const char *); |
||
254 | int putw(int, FILE *); |
||
255 | void setbuffer(FILE *, char *, int); |
||
256 | int setlinebuf(FILE *);
|
||
257 | char *tempnam(const char *, const char *); |
||
258 | int snprintf(char *, size_t, const char *, ...); |
||
259 | int vsnprintf(char *, size_t, const char *, va_list); |
||
260 | int vscanf(const char *, va_list); |
||
261 | int vsscanf(const char *, const char *, va_list); |
||
262 | FILE *zopen(const char *, const char *, int); |
||
263 | __END_DECLS |
||
264 | |||
265 | /*
|
||
266 | * This is a #define because the function is used internally and
|
||
267 | * (unlike vfscanf) the name __svfscanf is guaranteed not to collide
|
||
268 | * with a user function when _ANSI_SOURCE or _POSIX_SOURCE is defined.
|
||
269 | */
|
||
270 | #define vfscanf __svfscanf
|
||
271 | |||
272 | #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */ |
||
273 | |||
274 | /*
|
||
275 | * Functions internal to the implementation.
|
||
276 | */
|
||
277 | __BEGIN_DECLS |
||
278 | int __srget(FILE *);
|
||
279 | int __svfscanf(FILE *, const char *, va_list); |
||
280 | int __swbuf(int, FILE *); |
||
281 | __END_DECLS |
||
282 | |||
283 | /*
|
||
284 | * The __sfoo macros are here so that we can
|
||
285 | * define function versions in the C library.
|
||
286 | */
|
||
287 | |||
288 | #define __sfeof(p) (((p)->_flags & __SEOF) != 0) |
||
289 | #define __sferror(p) (((p)->_flags & __SERR) != 0) |
||
290 | #define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF))) |
||
291 | #define __sfileno(p) ((p)->_file)
|
||
292 | |||
293 | #define feof(p) __sfeof(p)
|
||
294 | #define ferror(p) __sferror(p)
|
||
295 | #define clearerr(p) __sclearerr(p)
|
||
296 | |||
297 | #ifndef _ANSI_SOURCE
|
||
298 | #define fileno(p) __sfileno(p)
|
||
299 | #endif
|
||
300 | |||
301 | #endif /* _STDIO_H_ */ |