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Annotation of src/include/stdio.h, Revision 1.43

1.43    ! thorpej     1: /*     $NetBSD: stdio.h,v 1.42 2001/12/07 11:47:40 yamt Exp $  */
1.14      cgd         2:
1.1       cgd         3: /*-
1.20      perry       4:  * Copyright (c) 1990, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
1.1       cgd         6:  *
                      7:  * This code is derived from software contributed to Berkeley by
                      8:  * Chris Torek.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  * 3. All advertising materials mentioning features or use of this software
                     19:  *    must display the following acknowledgement:
                     20:  *     This product includes software developed by the University of
                     21:  *     California, Berkeley and its contributors.
                     22:  * 4. Neither the name of the University nor the names of its contributors
                     23:  *    may be used to endorse or promote products derived from this software
                     24:  *    without specific prior written permission.
                     25:  *
                     26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     36:  * SUCH DAMAGE.
                     37:  *
1.20      perry      38:  *     @(#)stdio.h     8.5 (Berkeley) 4/29/95
1.1       cgd        39:  */
                     40:
                     41: #ifndef        _STDIO_H_
                     42: #define        _STDIO_H_
                     43:
1.33      kleink     44: #include <sys/ansi.h>
1.11      cgd        45:
1.1       cgd        46: #include <sys/cdefs.h>
1.21      kleink     47: #include <sys/featuretest.h>
1.1       cgd        48:
                     49: #include <machine/ansi.h>
1.12      cgd        50: #ifdef _BSD_SIZE_T_
                     51: typedef        _BSD_SIZE_T_    size_t;
                     52: #undef _BSD_SIZE_T_
1.1       cgd        53: #endif
                     54:
1.32      kleink     55: #include <sys/null.h>
1.1       cgd        56:
1.11      cgd        57: /*
                     58:  * This is fairly grotesque, but pure ANSI code must not inspect the
                     59:  * innards of an fpos_t anyway.  The library internally uses off_t,
                     60:  * which we assume is exactly as big as eight chars.
                     61:  */
1.37      mycroft    62: #if (!defined(_ANSI_SOURCE) && !defined(__STRICT_ANSI__)) || defined(_LIBC)
1.33      kleink     63: typedef __off_t fpos_t;
1.11      cgd        64: #else
                     65: typedef struct __sfpos {
1.33      kleink     66:        __off_t _pos;
1.11      cgd        67: } fpos_t;
                     68: #endif
1.1       cgd        69:
                     70: #define        _FSTDIO                 /* Define for new stdio with functions. */
                     71:
                     72: /*
                     73:  * NB: to fit things in six character monocase externals, the stdio
                     74:  * code uses the prefix `__s' for stdio objects, typically followed
                     75:  * by a three-character attempt at a mnemonic.
                     76:  */
                     77:
                     78: /* stdio buffers */
                     79: struct __sbuf {
                     80:        unsigned char *_base;
                     81:        int     _size;
                     82: };
                     83:
                     84: /*
                     85:  * stdio state variables.
                     86:  *
                     87:  * The following always hold:
                     88:  *
                     89:  *     if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
                     90:  *             _lbfsize is -_bf._size, else _lbfsize is 0
                     91:  *     if _flags&__SRD, _w is 0
                     92:  *     if _flags&__SWR, _r is 0
                     93:  *
                     94:  * This ensures that the getc and putc macros (or inline functions) never
                     95:  * try to write or read from a file that is in `read' or `write' mode.
                     96:  * (Moreover, they can, and do, automatically switch from read mode to
                     97:  * write mode, and back, on "r+" and "w+" files.)
                     98:  *
                     99:  * _lbfsize is used only to make the inline line-buffered output stream
                    100:  * code as compact as possible.
                    101:  *
                    102:  * _ub, _up, and _ur are used when ungetc() pushes back more characters
                    103:  * than fit in the current _bf, or when ungetc() pushes back a character
                    104:  * that does not match the previous one in _bf.  When this happens,
                    105:  * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
                    106:  * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
1.20      perry     107:  *
                    108:  * NB: see WARNING above before changing the layout of this structure!
1.1       cgd       109:  */
                    110: typedef        struct __sFILE {
                    111:        unsigned char *_p;      /* current position in (some) buffer */
                    112:        int     _r;             /* read space left for getc() */
                    113:        int     _w;             /* write space left for putc() */
                    114:        short   _flags;         /* flags, below; this FILE is free if 0 */
                    115:        short   _file;          /* fileno, if Unix descriptor, else -1 */
                    116:        struct  __sbuf _bf;     /* the buffer (at least 1 byte, if !NULL) */
                    117:        int     _lbfsize;       /* 0 or -_bf._size, for inline putc */
                    118:
                    119:        /* operations */
                    120:        void    *_cookie;       /* cookie passed to io functions */
                    121:        int     (*_close) __P((void *));
                    122:        int     (*_read)  __P((void *, char *, int));
                    123:        fpos_t  (*_seek)  __P((void *, fpos_t, int));
                    124:        int     (*_write) __P((void *, const char *, int));
                    125:
1.42      yamt      126:        /* file extension */
                    127:        struct  __sbuf _ext;
                    128:
1.1       cgd       129:        /* separate buffer for long sequences of ungetc() */
                    130:        unsigned char *_up;     /* saved _p when _p is doing ungetc data */
                    131:        int     _ur;            /* saved _r when _r is counting ungetc data */
                    132:
                    133:        /* tricks to meet minimum requirements even when malloc() fails */
                    134:        unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
                    135:        unsigned char _nbuf[1]; /* guarantee a getc() buffer */
                    136:
1.10      cgd       137:        /* separate buffer for fgetln() when line crosses buffer boundary */
                    138:        struct  __sbuf _lb;     /* buffer for fgetln() */
1.1       cgd       139:
                    140:        /* Unix stdio files get aligned to block boundaries on fseek() */
                    141:        int     _blksize;       /* stat.st_blksize (may be != _bf._size) */
1.11      cgd       142:        fpos_t  _offset;        /* current lseek offset */
1.1       cgd       143: } FILE;
                    144:
                    145: __BEGIN_DECLS
                    146: extern FILE __sF[];
                    147: __END_DECLS
                    148:
                    149: #define        __SLBF  0x0001          /* line buffered */
                    150: #define        __SNBF  0x0002          /* unbuffered */
                    151: #define        __SRD   0x0004          /* OK to read */
                    152: #define        __SWR   0x0008          /* OK to write */
                    153:        /* RD and WR are never simultaneously asserted */
                    154: #define        __SRW   0x0010          /* open for reading & writing */
                    155: #define        __SEOF  0x0020          /* found EOF */
                    156: #define        __SERR  0x0040          /* found error */
                    157: #define        __SMBF  0x0080          /* _buf is from malloc */
                    158: #define        __SAPP  0x0100          /* fdopen()ed in append mode */
                    159: #define        __SSTR  0x0200          /* this is an sprintf/snprintf string */
1.36      enami     160: #define        __SOPT  0x0400          /* do fseek() optimization */
                    161: #define        __SNPT  0x0800          /* do not do fseek() optimization */
1.1       cgd       162: #define        __SOFF  0x1000          /* set iff _offset is in fact correct */
1.10      cgd       163: #define        __SMOD  0x2000          /* true => fgetln modified _p text */
1.27      perry     164: #define        __SALC  0x4000          /* allocate string space dynamically */
1.1       cgd       165:
                    166: /*
                    167:  * The following three definitions are for ANSI C, which took them
                    168:  * from System V, which brilliantly took internal interface macros and
                    169:  * made them official arguments to setvbuf(), without renaming them.
                    170:  * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
                    171:  *
                    172:  * Although numbered as their counterparts above, the implementation
                    173:  * does not rely on this.
                    174:  */
                    175: #define        _IOFBF  0               /* setvbuf should set fully buffered */
                    176: #define        _IOLBF  1               /* setvbuf should set line buffered */
                    177: #define        _IONBF  2               /* setvbuf should set unbuffered */
                    178:
                    179: #define        BUFSIZ  1024            /* size of buffer used by setbuf */
                    180: #define        EOF     (-1)
                    181:
                    182: /*
1.20      perry     183:  * FOPEN_MAX is a minimum maximum, and is the number of streams that
                    184:  * stdio can provide without attempting to allocate further resources
                    185:  * (which could fail).  Do not use this for anything.
1.1       cgd       186:  */
1.20      perry     187:                                /* must be == _POSIX_STREAM_MAX <limits.h> */
1.1       cgd       188: #define        FOPEN_MAX       20      /* must be <= OPEN_MAX <sys/syslimits.h> */
                    189: #define        FILENAME_MAX    1024    /* must be <= PATH_MAX <sys/syslimits.h> */
                    190:
                    191: /* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
                    192: #ifndef _ANSI_SOURCE
                    193: #define        P_tmpdir        "/var/tmp/"
                    194: #endif
                    195: #define        L_tmpnam        1024    /* XXX must be == PATH_MAX */
                    196: #define        TMP_MAX         308915776
                    197:
1.22      kleink    198: /* Always ensure that these are consistent with <fcntl.h> and <unistd.h>! */
1.1       cgd       199: #ifndef SEEK_SET
                    200: #define        SEEK_SET        0       /* set file offset to offset */
                    201: #endif
                    202: #ifndef SEEK_CUR
                    203: #define        SEEK_CUR        1       /* set file offset to current plus offset */
                    204: #endif
                    205: #ifndef SEEK_END
                    206: #define        SEEK_END        2       /* set file offset to EOF plus offset */
                    207: #endif
                    208:
                    209: #define        stdin   (&__sF[0])
                    210: #define        stdout  (&__sF[1])
                    211: #define        stderr  (&__sF[2])
                    212:
                    213: /*
                    214:  * Functions defined in ANSI C standard.
                    215:  */
                    216: __BEGIN_DECLS
                    217: void    clearerr __P((FILE *));
                    218: int     fclose __P((FILE *));
                    219: int     feof __P((FILE *));
                    220: int     ferror __P((FILE *));
                    221: int     fflush __P((FILE *));
                    222: int     fgetc __P((FILE *));
1.41      kleink    223: int     fgetpos __P((FILE * __restrict, fpos_t * __restrict));
                    224: char   *fgets __P((char * __restrict, int, FILE * __restrict));
1.1       cgd       225: FILE   *fopen __P((const char *, const char *));
1.41      kleink    226: int     fprintf __P((FILE * __restrict , const char * __restrict, ...));
1.1       cgd       227: int     fputc __P((int, FILE *));
1.41      kleink    228: int     fputs __P((const char * __restrict, FILE * __restrict));
                    229: size_t  fread __P((void * __restrict, size_t, size_t, FILE * __restrict));
                    230: FILE   *freopen __P((const char *, const char *, FILE * __restrict));
                    231: int     fscanf __P((FILE * __restrict, const char * __restrict, ...));
1.1       cgd       232: int     fseek __P((FILE *, long, int));
                    233: int     fsetpos __P((FILE *, const fpos_t *));
1.15      jtc       234: long    ftell __P((FILE *));
1.41      kleink    235: size_t  fwrite __P((const void * __restrict, size_t, size_t,
                    236:            FILE * __restrict));
1.1       cgd       237: int     getc __P((FILE *));
                    238: int     getchar __P((void));
                    239: void    perror __P((const char *));
1.41      kleink    240: int     printf __P((const char * __restrict, ...));
1.1       cgd       241: int     putc __P((int, FILE *));
                    242: int     putchar __P((int));
                    243: int     puts __P((const char *));
                    244: int     remove __P((const char *));
                    245: void    rewind __P((FILE *));
1.41      kleink    246: int     scanf __P((const char * __restrict, ...));
                    247: void    setbuf __P((FILE * __restrict, char * __restrict));
                    248: int     setvbuf __P((FILE * __restrict, char * __restrict, int, size_t));
                    249: int     sscanf __P((const char * __restrict, const char * __restrict, ...));
1.1       cgd       250: FILE   *tmpfile __P((void));
                    251: int     ungetc __P((int, FILE *));
1.41      kleink    252: int     vfprintf __P((FILE * __restrict, const char * __restrict,
                    253:            _BSD_VA_LIST_));
                    254: int     vprintf __P((const char * __restrict, _BSD_VA_LIST_));
1.24      mycroft   255:
                    256: #ifndef __AUDIT__
                    257: char   *gets __P((char *));
1.41      kleink    258: int     sprintf __P((char * __restrict, const char * __restrict, ...));
1.25      mycroft   259: char   *tmpnam __P((char *));
1.41      kleink    260: int     vsprintf __P((char * __resitrct, const char * __restrict,
                    261:            _BSD_VA_LIST_));
1.24      mycroft   262: #endif
1.21      kleink    263:
                    264: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)
                    265: int     rename  __P((const char *, const char *)) __RENAME(__posix_rename);
                    266: #else
                    267: int     rename  __P((const char *, const char *));
                    268: #endif
1.1       cgd       269: __END_DECLS
                    270:
                    271: /*
1.29      kleink    272:  * IEEE Std 1003.1-90
1.1       cgd       273:  */
                    274: #ifndef _ANSI_SOURCE
                    275: #define        L_ctermid       1024    /* size for ctermid(); PATH_MAX */
1.7       jtc       276: #define L_cuserid      9       /* size for cuserid(); UT_NAMESIZE + 1 */
1.1       cgd       277:
                    278: __BEGIN_DECLS
                    279: char   *ctermid __P((char *));
1.40      christos  280: #ifndef __CUSERID_DECLARED
                    281: #define __CUSERID_DECLARED
                    282: /* also declared in unistd.h */
1.7       jtc       283: char   *cuserid __P((char *));
1.40      christos  284: #endif /* __CUSERID_DECLARED */
1.1       cgd       285: FILE   *fdopen __P((int, const char *));
                    286: int     fileno __P((FILE *));
                    287: __END_DECLS
                    288: #endif /* not ANSI */
                    289:
1.29      kleink    290: /*
                    291:  * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
                    292:  */
                    293: #if (!defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
                    294:      !defined(_XOPEN_SOURCE)) || (_POSIX_C_SOURCE - 0) >= 199506L || \
1.30      kleink    295:     (_XOPEN_SOURCE - 0) >= 500 || defined(_REENTRANT)
1.29      kleink    296: __BEGIN_DECLS
                    297: #if 0 /* not yet */
                    298: void   flockfile __P((FILE *));
                    299: int    ftrylockfile __P((FILE *));
                    300: void   funlockfile __P((FILE *));
                    301: #endif /* 0 */
                    302: int    getc_unlocked __P((FILE *));
                    303: int    getchar_unlocked __P((void));
                    304: int    putc_unlocked __P((int, FILE *));
                    305: int    putchar_unlocked __P((int));
                    306: __END_DECLS
                    307: #endif /* (!_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE) || ... */
1.19      jtc       308:
1.1       cgd       309: /*
1.29      kleink    310:  * Functions defined in POSIX 1003.2 and XPG2 or later.
1.1       cgd       311:  */
1.29      kleink    312: #if (!defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
                    313:      !defined(_XOPEN_SOURCE)) || (_POSIX_C_SOURCE - 0) >= 2 || \
                    314:     (_XOPEN_SOURCE - 0) >= 2
1.1       cgd       315: __BEGIN_DECLS
                    316: int     pclose __P((FILE *));
                    317: FILE   *popen __P((const char *, const char *));
1.22      kleink    318: __END_DECLS
                    319: #endif
                    320:
                    321: /*
                    322:  * Functions defined in XPG4.2.
                    323:  */
1.23      drochner  324: #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) || \
1.22      kleink    325:     defined(_XOPEN_SOURCE)
                    326: __BEGIN_DECLS
                    327: int     getw __P((FILE *));
1.1       cgd       328: int     putw __P((int, FILE *));
1.41      kleink    329: int     snprintf __P((char * __restrict, size_t, const char * __restrict, ...))
1.26      mycroft   330:            __attribute__((__format__(__printf__, 3, 4)));
1.41      kleink    331: int     vsnprintf __P((char * __restrict, size_t, const char * __restrict,
                    332:            _BSD_VA_LIST_))
1.26      mycroft   333:            __attribute__((__format__(__printf__, 3, 0)));
1.24      mycroft   334:
                    335: #ifndef __AUDIT__
                    336: char   *tempnam __P((const char *, const char *));
                    337: #endif
1.22      kleink    338: __END_DECLS
                    339: #endif
1.34      kleink    340:
                    341: /*
                    342:  * X/Open CAE Specification Issue 5 Version 2
                    343:  */
                    344: #if (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
                    345:     (_XOPEN_SOURCE - 0) >= 500 || defined(_LARGEFILE_SOURCE)
                    346: #ifndef        off_t
                    347: typedef        __off_t         off_t;
1.38      kleink    348: #define        off_t           __off_t
1.35      drochner  349: #endif /* off_t */
1.34      kleink    350:
1.36      enami     351: __BEGIN_DECLS
1.34      kleink    352: int     fseeko __P((FILE *, off_t, int));
                    353: off_t   ftello __P((FILE *));
1.36      enami     354: __END_DECLS
1.34      kleink    355: #endif /* (!_POSIX_SOURCE && !_XOPEN_SOURCE) || ... */
1.22      kleink    356:
                    357: /*
                    358:  * Routines that are purely local.
                    359:  */
                    360: #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
                    361:     !defined(_XOPEN_SOURCE)
                    362: __BEGIN_DECLS
1.41      kleink    363: int     asprintf __P((char ** __restrict, const char * __restrict, ...))
                    364:            __attribute__((__format__(__printf__, 2, 3)));
                    365: char   *fgetln __P((FILE * __restrict, size_t * __restrict));
1.22      kleink    366: int     fpurge __P((FILE *));
                    367: void    setbuffer __P((FILE *, char *, int));
                    368: int     setlinebuf __P((FILE *));
1.41      kleink    369: int     vasprintf __P((char ** __restrict, const char * __restrict,
                    370:            _BSD_VA_LIST_))
                    371:            __attribute__((__format__(__printf__, 2, 0)));
                    372: int     vscanf __P((const char * __restrict, _BSD_VA_LIST_))
1.26      mycroft   373:            __attribute__((__format__(__scanf__, 1, 0)));
1.41      kleink    374: int     vsscanf __P((const char * __restrict, const char * __restrict,
                    375:            _BSD_VA_LIST_))
1.26      mycroft   376:            __attribute__((__format__(__scanf__, 2, 0)));
1.39      briggs    377: __const char *fmtcheck __P((const char *, const char *))
1.41      kleink    378:            __attribute__((__format_arg__(2)));
1.1       cgd       379: __END_DECLS
                    380:
                    381: /*
                    382:  * This is a #define because the function is used internally and
                    383:  * (unlike vfscanf) the name __svfscanf is guaranteed not to collide
                    384:  * with a user function when _ANSI_SOURCE or _POSIX_SOURCE is defined.
                    385:  */
                    386: #define         vfscanf        __svfscanf
                    387:
                    388: /*
                    389:  * Stdio function-access interface.
                    390:  */
                    391: __BEGIN_DECLS
                    392: FILE   *funopen __P((const void *,
                    393:                int (*)(void *, char *, int),
                    394:                int (*)(void *, const char *, int),
                    395:                fpos_t (*)(void *, fpos_t, int),
                    396:                int (*)(void *)));
                    397: __END_DECLS
                    398: #define        fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
                    399: #define        fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
                    400: #endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
                    401:
                    402: /*
                    403:  * Functions internal to the implementation.
                    404:  */
                    405: __BEGIN_DECLS
                    406: int    __srget __P((FILE *));
1.41      kleink    407: int    __svfscanf __P((FILE * __restrict, const char * __restrict,
1.43    ! thorpej   408:            _BSD_VA_LIST_))
        !           409:            __attribute__((__format__(__scanf__, 2, 0)));
1.1       cgd       410: int    __swbuf __P((int, FILE *));
                    411: __END_DECLS
                    412:
                    413: /*
                    414:  * The __sfoo macros are here so that we can
                    415:  * define function versions in the C library.
                    416:  */
                    417: #define        __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
                    418: #if defined(__GNUC__) && defined(__STDC__)
1.2       sef       419: static __inline int __sputc(int _c, FILE *_p) {
1.1       cgd       420:        if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
                    421:                return (*_p->_p++ = _c);
                    422:        else
                    423:                return (__swbuf(_c, _p));
                    424: }
                    425: #else
                    426: /*
                    427:  * This has been tuned to generate reasonable code on the vax using pcc.
                    428:  */
                    429: #define        __sputc(c, p) \
                    430:        (--(p)->_w < 0 ? \
                    431:                (p)->_w >= (p)->_lbfsize ? \
                    432:                        (*(p)->_p = (c)), *(p)->_p != '\n' ? \
                    433:                                (int)*(p)->_p++ : \
                    434:                                __swbuf('\n', p) : \
                    435:                        __swbuf((int)(c), p) : \
                    436:                (*(p)->_p = (c), (int)*(p)->_p++))
                    437: #endif
                    438:
                    439: #define        __sfeof(p)      (((p)->_flags & __SEOF) != 0)
                    440: #define        __sferror(p)    (((p)->_flags & __SERR) != 0)
                    441: #define        __sclearerr(p)  ((void)((p)->_flags &= ~(__SERR|__SEOF)))
                    442: #define        __sfileno(p)    ((p)->_file)
                    443:
1.19      jtc       444: #ifndef lint
                    445: #ifndef _REENTRANT
1.1       cgd       446: #define        feof(p)         __sfeof(p)
                    447: #define        ferror(p)       __sferror(p)
                    448: #define        clearerr(p)     __sclearerr(p)
                    449:
                    450: #define        getc(fp)        __sgetc(fp)
                    451: #define putc(x, fp)    __sputc(x, fp)
1.30      kleink    452: #endif /* !_REENTRANT */
1.1       cgd       453: #endif /* lint */
                    454:
                    455: #define        getchar()       getc(stdin)
                    456: #define        putchar(x)      putc(x, stdout)
1.19      jtc       457:
                    458: #ifndef _ANSI_SOURCE
1.30      kleink    459: #ifndef _REENTRANT
1.19      jtc       460: #define        fileno(p)       __sfileno(p)
1.30      kleink    461: #endif /* !_REENTRANT */
                    462: #endif /* !_ANSI_SOURCE */
1.19      jtc       463:
1.30      kleink    464: #if (!defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
                    465:      !defined(_XOPEN_SOURCE)) || (_POSIX_C_SOURCE - 0) >= 199506L || \
                    466:     (_XOPEN_SOURCE - 0) >= 500 || defined(_REENTRANT)
1.19      jtc       467: #define getc_unlocked(fp)      __sgetc(fp)
                    468: #define putc_unlocked(x, fp)   __sputc(x, fp)
                    469:
                    470: #define getchar_unlocked()     getc_unlocked(stdin)
                    471: #define putchar_unlocked(x)    putc_unlocked(x, stdout)
1.30      kleink    472: #endif /* (!_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE) || ... */
1.19      jtc       473:
1.1       cgd       474: #endif /* _STDIO_H_ */

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