Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tag: openbsd_snap_2…
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 449 lines (408 sloc) 14.654 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448
/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Chris Torek.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)stdio.h 8.5 (Berkeley) 4/29/95
* $Id: stdio.h,v 1.21.2.1 1999/05/05 22:14:47 dt Exp $
*/

#ifndef _STDIO_H_
#define _STDIO_H_

#include <sys/cdefs.h>
#include <machine/ansi.h>

#ifdef _BSD_SIZE_T_
typedef _BSD_SIZE_T_ size_t;
#undef _BSD_SIZE_T_
#endif

#ifndef NULL
#define NULL 0
#endif

typedef _BSD_OFF_T_ fpos_t;

#define _FSTDIO /* Define for new stdio with functions. */

/*
* NB: to fit things in six character monocase externals, the stdio
* code uses the prefix `__s' for stdio objects, typically followed
* by a three-character attempt at a mnemonic.
*/

/* stdio buffers */
struct __sbuf {
unsigned char *_base;
int _size;
};

/*
* stdio state variables.
*
* The following always hold:
*
* if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
* _lbfsize is -_bf._size, else _lbfsize is 0
* if _flags&__SRD, _w is 0
* if _flags&__SWR, _r is 0
*
* This ensures that the getc and putc macros (or inline functions) never
* try to write or read from a file that is in `read' or `write' mode.
* (Moreover, they can, and do, automatically switch from read mode to
* write mode, and back, on "r+" and "w+" files.)
*
* _lbfsize is used only to make the inline line-buffered output stream
* code as compact as possible.
*
* _ub, _up, and _ur are used when ungetc() pushes back more characters
* than fit in the current _bf, or when ungetc() pushes back a character
* that does not match the previous one in _bf. When this happens,
* _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
* _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
*
* NB: see WARNING above before changing the layout of this structure!
*/
typedef struct __sFILE {
unsigned char *_p; /* current position in (some) buffer */
int _r; /* read space left for getc() */
int _w; /* write space left for putc() */
short _flags; /* flags, below; this FILE is free if 0 */
short _file; /* fileno, if Unix descriptor, else -1 */
struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
int _lbfsize; /* 0 or -_bf._size, for inline putc */

/* operations */
void *_cookie; /* cookie passed to io functions */
int (*_close) __P((void *));
int (*_read) __P((void *, char *, int));
fpos_t (*_seek) __P((void *, fpos_t, int));
int (*_write) __P((void *, const char *, int));

/* separate buffer for long sequences of ungetc() */
struct __sbuf _ub; /* ungetc buffer */
unsigned char *_up; /* saved _p when _p is doing ungetc data */
int _ur; /* saved _r when _r is counting ungetc data */

/* tricks to meet minimum requirements even when malloc() fails */
unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
unsigned char _nbuf[1]; /* guarantee a getc() buffer */

/* separate buffer for fgetln() when line crosses buffer boundary */
struct __sbuf _lb; /* buffer for fgetln() */

/* Unix stdio files get aligned to block boundaries on fseek() */
int _blksize; /* stat.st_blksize (may be != _bf._size) */
fpos_t _offset; /* current lseek offset (see WARNING) */
} FILE;

__BEGIN_DECLS
extern FILE __sF[];
__END_DECLS

#define __SLBF 0x0001 /* line buffered */
#define __SNBF 0x0002 /* unbuffered */
#define __SRD 0x0004 /* OK to read */
#define __SWR 0x0008 /* OK to write */
/* RD and WR are never simultaneously asserted */
#define __SRW 0x0010 /* open for reading & writing */
#define __SEOF 0x0020 /* found EOF */
#define __SERR 0x0040 /* found error */
#define __SMBF 0x0080 /* _buf is from malloc */
#define __SAPP 0x0100 /* fdopen()ed in append mode */
#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
#define __SOPT 0x0400 /* do fseek() optimization */
#define __SNPT 0x0800 /* do not do fseek() optimization */
#define __SOFF 0x1000 /* set iff _offset is in fact correct */
#define __SMOD 0x2000 /* true => fgetln modified _p text */
#define __SALC 0x4000 /* allocate string space dynamically */

/*
* The following three definitions are for ANSI C, which took them
* from System V, which brilliantly took internal interface macros and
* made them official arguments to setvbuf(), without renaming them.
* Hence, these ugly _IOxxx names are *supposed* to appear in user code.
*
* Although numbered as their counterparts above, the implementation
* does not rely on this.
*/
#define _IOFBF 0 /* setvbuf should set fully buffered */
#define _IOLBF 1 /* setvbuf should set line buffered */
#define _IONBF 2 /* setvbuf should set unbuffered */

#define BUFSIZ 1024 /* size of buffer used by setbuf */
#define EOF (-1)

/*
* FOPEN_MAX is a minimum maximum, and is the number of streams that
* stdio can provide without attempting to allocate further resources
* (which could fail). Do not use this for anything.
*/
/* must be == _POSIX_STREAM_MAX <limits.h> */
#define FOPEN_MAX 20 /* must be <= OPEN_MAX <sys/syslimits.h> */
#define FILENAME_MAX 1024 /* must be <= PATH_MAX <sys/syslimits.h> */

/* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
#ifndef _ANSI_SOURCE
#define P_tmpdir "/var/tmp/"
#endif
#define L_tmpnam 1024 /* XXX must be == PATH_MAX */
#define TMP_MAX 308915776

#ifndef SEEK_SET
#define SEEK_SET 0 /* set file offset to offset */
#endif
#ifndef SEEK_CUR
#define SEEK_CUR 1 /* set file offset to current plus offset */
#endif
#ifndef SEEK_END
#define SEEK_END 2 /* set file offset to EOF plus offset */
#endif

#define stdin (&__sF[0])
#define stdout (&__sF[1])
#define stderr (&__sF[2])

/*
* Functions defined in ANSI C standard.
*/
__BEGIN_DECLS
void clearerr __P((FILE *));
int fclose __P((FILE *));
int feof __P((FILE *));
int ferror __P((FILE *));
int fflush __P((FILE *));
int fgetc __P((FILE *));
int fgetpos __P((FILE *, fpos_t *));
char *fgets __P((char *, int, FILE *));
FILE *fopen __P((const char *, const char *));
int fprintf __P((FILE *, const char *, ...));
int fputc __P((int, FILE *));
int fputs __P((const char *, FILE *));
size_t fread __P((void *, size_t, size_t, FILE *));
FILE *freopen __P((const char *, const char *, FILE *));
int fscanf __P((FILE *, const char *, ...));
int fseek __P((FILE *, long, int));
int fsetpos __P((FILE *, const fpos_t *));
long ftell __P((FILE *));
size_t fwrite __P((const void *, size_t, size_t, FILE *));
int getc __P((FILE *));
int getchar __P((void));
char *gets __P((char *));
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
extern __const int sys_nerr; /* perror(3) external variables */
extern __const char *__const sys_errlist[];
#endif
void perror __P((const char *));
int printf __P((const char *, ...));
int putc __P((int, FILE *));
int putchar __P((int));
int puts __P((const char *));
int remove __P((const char *));
int rename __P((const char *, const char *));
void rewind __P((FILE *));
int scanf __P((const char *, ...));
void setbuf __P((FILE *, char *));
int setvbuf __P((FILE *, char *, int, size_t));
int sprintf __P((char *, const char *, ...));
int sscanf __P((const char *, const char *, ...));
FILE *tmpfile __P((void));
char *tmpnam __P((char *));
int ungetc __P((int, FILE *));
int vfprintf __P((FILE *, const char *, _BSD_VA_LIST_));
int vprintf __P((const char *, _BSD_VA_LIST_));
int vsprintf __P((char *, const char *, _BSD_VA_LIST_));
__END_DECLS

/*
* Functions defined in POSIX 1003.1.
*/
#ifndef _ANSI_SOURCE
/* size for cuserid(3); UT_NAMESIZE + 1, see <utmp.h> */
#define L_cuserid 17

#define L_ctermid 1024 /* size for ctermid(3); PATH_MAX */

__BEGIN_DECLS
char *ctermid __P((char *));
FILE *fdopen __P((int, const char *));
int fileno __P((FILE *));
int ftrylockfile __P((FILE *));
void flockfile __P((FILE *));
void funlockfile __P((FILE *));
__END_DECLS
#endif /* not ANSI */

/*
* Portability hacks. See <sys/types.h>.
*/
#if !defined (_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
__BEGIN_DECLS
#ifndef _FTRUNCATE_DECLARED
#define _FTRUNCATE_DECLARED
int ftruncate __P((int, _BSD_OFF_T_));
#endif
#ifndef _LSEEK_DECLARED
#define _LSEEK_DECLARED
_BSD_OFF_T_ lseek __P((int, _BSD_OFF_T_, int));
#endif
#ifndef _MMAP_DECLARED
#define _MMAP_DECLARED
void *mmap __P((void *, size_t, int, int, int, _BSD_OFF_T_));
#endif
#ifndef _TRUNCATE_DECLARED
#define _TRUNCATE_DECLARED
int truncate __P((const char *, _BSD_OFF_T_));
#endif
__END_DECLS
#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */

/*
* Routines that are purely local.
*/
#if !defined (_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
__BEGIN_DECLS
int asprintf __P((char **, const char *, ...)) __printflike(2, 3);
char *fgetln __P((FILE *, size_t *));
int fpurge __P((FILE *));
int fseeko __P((FILE *, _BSD_OFF_T_, int));
_BSD_OFF_T_ ftello __P((FILE *));
int getw __P((FILE *));
int pclose __P((FILE *));
FILE *popen __P((const char *, const char *));
int putw __P((int, FILE *));
void setbuffer __P((FILE *, char *, int));
int setlinebuf __P((FILE *));
char *tempnam __P((const char *, const char *));
int snprintf __P((char *, size_t, const char *, ...)) __printflike(3, 4);
int vasprintf __P((char **, const char *, _BSD_VA_LIST_))
__printflike(2, 0);
int vsnprintf __P((char *, size_t, const char *, _BSD_VA_LIST_))
__printflike(3, 0);
int vscanf __P((const char *, _BSD_VA_LIST_)) __scanflike(1, 0);
int vsscanf __P((const char *, const char *, _BSD_VA_LIST_))
__scanflike(2, 0);
__END_DECLS

/*
* This is a #define because the function is used internally and
* (unlike vfscanf) the name __svfscanf is guaranteed not to collide
* with a user function when _ANSI_SOURCE or _POSIX_SOURCE is defined.
*/
#define vfscanf __svfscanf

/*
* Stdio function-access interface.
*/
__BEGIN_DECLS
FILE *funopen __P((const void *,
int (*)(void *, char *, int),
int (*)(void *, const char *, int),
fpos_t (*)(void *, fpos_t, int),
int (*)(void *)));
__END_DECLS
#define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
#define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */

/*
* Functions internal to the implementation.
*/
__BEGIN_DECLS
int __srget __P((FILE *));
int __svfscanf __P((FILE *, const char *, _BSD_VA_LIST_));
int __swbuf __P((int, FILE *));
__END_DECLS

/*
* The __sfoo macros are here so that we can
* define function versions in the C library.
*/
#define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
#if defined(__GNUC__) && defined(__STDC__)
static __inline int __sputc(int _c, FILE *_p) {
if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
return (*_p->_p++ = _c);
else
return (__swbuf(_c, _p));
}
#else
/*
* This has been tuned to generate reasonable code on the vax using pcc.
*/
#define __sputc(c, p) \
(--(p)->_w < 0 ? \
(p)->_w >= (p)->_lbfsize ? \
(*(p)->_p = (c)), *(p)->_p != '\n' ? \
(int)*(p)->_p++ : \
__swbuf('\n', p) : \
__swbuf((int)(c), p) : \
(*(p)->_p = (c), (int)*(p)->_p++))
#endif

#define __sfeof(p) (((p)->_flags & __SEOF) != 0)
#define __sferror(p) (((p)->_flags & __SERR) != 0)
#define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR|__SEOF)))
#define __sfileno(p) ((p)->_file)

/*
* See ISO/IEC 9945-1 ANSI/IEEE Std 1003.1 Second Edition 1996-07-12
* B.8.2.7 for the rationale behind the *_unlocked() macros.
*/
#define feof_unlocked(p) __sfeof(p)
#define ferror_unlocked(p) __sferror(p)
#define clearerr_unlocked(p) __sclearerr(p)

#ifndef _ANSI_SOURCE
#define fileno_unlocked(p) __sfileno(p)
#endif

#ifndef _THREAD_SAFE
#define feof(p) feof_unlocked(p)
#define ferror(p) ferror_unlocked(p)
#define clearerr(p) clearerr_unlocked(p)

#ifndef _ANSI_SOURCE
#define fileno(p) fileno_unlocked(p)
#endif
#endif

#ifndef lint
#define getc_unlocked(fp) __sgetc(fp)
#define putc_unlocked(x, fp) __sputc(x, fp)
#ifdef _THREAD_SAFE
void _flockfile_debug __P((FILE *, char *, int));
#ifdef _FLOCK_DEBUG
#define _FLOCKFILE(x) _flockfile_debug(x, __FILE__, __LINE__)
#else
#define _FLOCKFILE(x) flockfile(x)
#endif
static __inline int \
__getc_locked(FILE *_fp) \
{ \
extern int __isthreaded; \
int _ret; \
if (__isthreaded) \
_FLOCKFILE(_fp); \
_ret = getc_unlocked(_fp); \
if (__isthreaded) \
funlockfile(_fp); \
return (_ret); \
}
static __inline int \
__putc_locked(int _x, FILE *_fp) \
{ \
extern int __isthreaded; \
int _ret; \
if (__isthreaded) \
_FLOCKFILE(_fp); \
_ret = putc_unlocked(_x, _fp); \
if (__isthreaded) \
funlockfile(_fp); \
return (_ret); \
}
#define getc(fp) __getc_locked(fp)
#define putc(x, fp) __putc_locked(x, fp)
#else
#define getc(fp) getc_unlocked(fp)
#define putc(x, fp) putc_unlocked(x, fp)
#endif
#endif /* lint */

#define getchar() getc(stdin)
#define getchar_unlocked() getc_unlocked(stdin)
#define putchar(x) putc(x, stdout)
#define putchar_unlocked(x) putc_unlocked(x, stdout)

#endif /* !_STDIO_H_ */
Something went wrong with that request. Please try again.