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Annotation of src/include/stdio.h, Revision 1.78

1.78    ! tnozaki     1: /*     $NetBSD: stdio.h,v 1.77 2010/09/06 14:52:26 christos 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.
1.53      agc        18:  * 3. Neither the name of the University nor the names of its contributors
1.1       cgd        19:  *    may be used to endorse or promote products derived from this software
                     20:  *    without specific prior written permission.
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     32:  * SUCH DAMAGE.
                     33:  *
1.20      perry      34:  *     @(#)stdio.h     8.5 (Berkeley) 4/29/95
1.1       cgd        35:  */
                     36:
                     37: #ifndef        _STDIO_H_
                     38: #define        _STDIO_H_
                     39:
                     40: #include <sys/cdefs.h>
1.21      kleink     41: #include <sys/featuretest.h>
1.61      kleink     42: #include <sys/ansi.h>
1.1       cgd        43:
                     44: #include <machine/ansi.h>
1.12      cgd        45: #ifdef _BSD_SIZE_T_
                     46: typedef        _BSD_SIZE_T_    size_t;
                     47: #undef _BSD_SIZE_T_
1.1       cgd        48: #endif
1.74      roy        49: #ifdef _BSD_SSIZE_T_
                     50: typedef        _BSD_SSIZE_T_   ssize_t;
                     51: #undef _BSD_SSIZE_T_
                     52: #endif
1.1       cgd        53:
1.32      kleink     54: #include <sys/null.h>
1.1       cgd        55:
1.11      cgd        56: /*
                     57:  * This is fairly grotesque, but pure ANSI code must not inspect the
                     58:  * innards of an fpos_t anyway.  The library internally uses off_t,
                     59:  * which we assume is exactly as big as eight chars.
                     60:  */
1.37      mycroft    61: #if (!defined(_ANSI_SOURCE) && !defined(__STRICT_ANSI__)) || defined(_LIBC)
1.33      kleink     62: typedef __off_t fpos_t;
1.11      cgd        63: #else
                     64: typedef struct __sfpos {
1.33      kleink     65:        __off_t _pos;
1.11      cgd        66: } fpos_t;
                     67: #endif
1.1       cgd        68:
                     69: #define        _FSTDIO                 /* Define for new stdio with functions. */
                     70:
                     71: /*
                     72:  * NB: to fit things in six character monocase externals, the stdio
                     73:  * code uses the prefix `__s' for stdio objects, typically followed
                     74:  * by a three-character attempt at a mnemonic.
                     75:  */
                     76:
                     77: /* stdio buffers */
                     78: struct __sbuf {
                     79:        unsigned char *_base;
                     80:        int     _size;
                     81: };
                     82:
                     83: /*
                     84:  * stdio state variables.
                     85:  *
                     86:  * The following always hold:
                     87:  *
                     88:  *     if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
                     89:  *             _lbfsize is -_bf._size, else _lbfsize is 0
                     90:  *     if _flags&__SRD, _w is 0
                     91:  *     if _flags&__SWR, _r is 0
                     92:  *
                     93:  * This ensures that the getc and putc macros (or inline functions) never
                     94:  * try to write or read from a file that is in `read' or `write' mode.
                     95:  * (Moreover, they can, and do, automatically switch from read mode to
                     96:  * write mode, and back, on "r+" and "w+" files.)
                     97:  *
                     98:  * _lbfsize is used only to make the inline line-buffered output stream
                     99:  * code as compact as possible.
                    100:  *
                    101:  * _ub, _up, and _ur are used when ungetc() pushes back more characters
                    102:  * than fit in the current _bf, or when ungetc() pushes back a character
                    103:  * that does not match the previous one in _bf.  When this happens,
                    104:  * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
                    105:  * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
1.20      perry     106:  *
                    107:  * NB: see WARNING above before changing the layout of this structure!
1.1       cgd       108:  */
                    109: typedef        struct __sFILE {
                    110:        unsigned char *_p;      /* current position in (some) buffer */
                    111:        int     _r;             /* read space left for getc() */
                    112:        int     _w;             /* write space left for putc() */
1.65      christos  113:        unsigned short _flags;  /* flags, below; this FILE is free if 0 */
1.1       cgd       114:        short   _file;          /* fileno, if Unix descriptor, else -1 */
                    115:        struct  __sbuf _bf;     /* the buffer (at least 1 byte, if !NULL) */
                    116:        int     _lbfsize;       /* 0 or -_bf._size, for inline putc */
                    117:
                    118:        /* operations */
                    119:        void    *_cookie;       /* cookie passed to io functions */
1.57      perry     120:        int     (*_close)(void *);
                    121:        int     (*_read) (void *, char *, int);
                    122:        fpos_t  (*_seek) (void *, fpos_t, int);
                    123:        int     (*_write)(void *, const char *, int);
1.1       cgd       124:
1.42      yamt      125:        /* file extension */
                    126:        struct  __sbuf _ext;
                    127:
1.1       cgd       128:        /* separate buffer for long sequences of ungetc() */
                    129:        unsigned char *_up;     /* saved _p when _p is doing ungetc data */
                    130:        int     _ur;            /* saved _r when _r is counting ungetc data */
                    131:
                    132:        /* tricks to meet minimum requirements even when malloc() fails */
                    133:        unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
                    134:        unsigned char _nbuf[1]; /* guarantee a getc() buffer */
                    135:
1.75      joerg     136:        /* Formerly used by fgetln/fgetwln; kept for binary compatibility */
                    137:        struct  __sbuf _lb__unused;
1.1       cgd       138:
                    139:        /* Unix stdio files get aligned to block boundaries on fseek() */
                    140:        int     _blksize;       /* stat.st_blksize (may be != _bf._size) */
1.11      cgd       141:        fpos_t  _offset;        /* current lseek offset */
1.1       cgd       142: } FILE;
                    143:
                    144: __BEGIN_DECLS
                    145: extern FILE __sF[];
                    146: __END_DECLS
                    147:
                    148: #define        __SLBF  0x0001          /* line buffered */
                    149: #define        __SNBF  0x0002          /* unbuffered */
                    150: #define        __SRD   0x0004          /* OK to read */
                    151: #define        __SWR   0x0008          /* OK to write */
                    152:        /* RD and WR are never simultaneously asserted */
                    153: #define        __SRW   0x0010          /* open for reading & writing */
                    154: #define        __SEOF  0x0020          /* found EOF */
                    155: #define        __SERR  0x0040          /* found error */
                    156: #define        __SMBF  0x0080          /* _buf is from malloc */
                    157: #define        __SAPP  0x0100          /* fdopen()ed in append mode */
                    158: #define        __SSTR  0x0200          /* this is an sprintf/snprintf string */
1.36      enami     159: #define        __SOPT  0x0400          /* do fseek() optimization */
                    160: #define        __SNPT  0x0800          /* do not do fseek() optimization */
1.1       cgd       161: #define        __SOFF  0x1000          /* set iff _offset is in fact correct */
1.10      cgd       162: #define        __SMOD  0x2000          /* true => fgetln modified _p text */
1.27      perry     163: #define        __SALC  0x4000          /* allocate string space dynamically */
1.1       cgd       164:
                    165: /*
                    166:  * The following three definitions are for ANSI C, which took them
                    167:  * from System V, which brilliantly took internal interface macros and
                    168:  * made them official arguments to setvbuf(), without renaming them.
                    169:  * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
                    170:  *
                    171:  * Although numbered as their counterparts above, the implementation
                    172:  * does not rely on this.
                    173:  */
                    174: #define        _IOFBF  0               /* setvbuf should set fully buffered */
                    175: #define        _IOLBF  1               /* setvbuf should set line buffered */
                    176: #define        _IONBF  2               /* setvbuf should set unbuffered */
                    177:
                    178: #define        BUFSIZ  1024            /* size of buffer used by setbuf */
                    179: #define        EOF     (-1)
                    180:
                    181: /*
1.20      perry     182:  * FOPEN_MAX is a minimum maximum, and is the number of streams that
                    183:  * stdio can provide without attempting to allocate further resources
                    184:  * (which could fail).  Do not use this for anything.
1.1       cgd       185:  */
1.20      perry     186:                                /* must be == _POSIX_STREAM_MAX <limits.h> */
1.1       cgd       187: #define        FOPEN_MAX       20      /* must be <= OPEN_MAX <sys/syslimits.h> */
                    188: #define        FILENAME_MAX    1024    /* must be <= PATH_MAX <sys/syslimits.h> */
                    189:
                    190: /* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
1.52      bjh21     191: #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
1.1       cgd       192: #define        P_tmpdir        "/var/tmp/"
                    193: #endif
                    194: #define        L_tmpnam        1024    /* XXX must be == PATH_MAX */
1.49      christos  195: /* Always ensure that this is consistent with <limits.h> */
                    196: #ifndef TMP_MAX
                    197: #define TMP_MAX                        308915776       /* Legacy */
                    198: #endif
1.1       cgd       199:
1.22      kleink    200: /* Always ensure that these are consistent with <fcntl.h> and <unistd.h>! */
1.1       cgd       201: #ifndef SEEK_SET
                    202: #define        SEEK_SET        0       /* set file offset to offset */
                    203: #endif
                    204: #ifndef SEEK_CUR
                    205: #define        SEEK_CUR        1       /* set file offset to current plus offset */
                    206: #endif
                    207: #ifndef SEEK_END
                    208: #define        SEEK_END        2       /* set file offset to EOF plus offset */
                    209: #endif
                    210:
                    211: #define        stdin   (&__sF[0])
                    212: #define        stdout  (&__sF[1])
                    213: #define        stderr  (&__sF[2])
                    214:
                    215: /*
                    216:  * Functions defined in ANSI C standard.
                    217:  */
                    218: __BEGIN_DECLS
1.57      perry     219: void    clearerr(FILE *);
                    220: int     fclose(FILE *);
                    221: int     feof(FILE *);
                    222: int     ferror(FILE *);
                    223: int     fflush(FILE *);
                    224: int     fgetc(FILE *);
                    225: int     fgetpos(FILE * __restrict, fpos_t * __restrict);
                    226: char   *fgets(char * __restrict, int, FILE * __restrict);
1.59      kleink    227: FILE   *fopen(const char * __restrict , const char * __restrict);
1.73      christos  228: int     fprintf(FILE * __restrict , const char * __restrict, ...)
1.76      joerg     229:                __printflike(2, 3);
1.57      perry     230: int     fputc(int, FILE *);
                    231: int     fputs(const char * __restrict, FILE * __restrict);
                    232: size_t  fread(void * __restrict, size_t, size_t, FILE * __restrict);
1.59      kleink    233: FILE   *freopen(const char * __restrict, const char * __restrict,
                    234:            FILE * __restrict);
1.73      christos  235: int     fscanf(FILE * __restrict, const char * __restrict, ...)
1.76      joerg     236:                __scanflike(2, 3);
1.57      perry     237: int     fseek(FILE *, long, int);
                    238: int     fsetpos(FILE *, const fpos_t *);
                    239: long    ftell(FILE *);
                    240: size_t  fwrite(const void * __restrict, size_t, size_t, FILE * __restrict);
                    241: int     getc(FILE *);
                    242: int     getchar(void);
1.74      roy       243: ssize_t         getdelim(char ** __restrict, size_t * __restrict, int,
                    244:            FILE * __restrict);
                    245: ssize_t         getline(char ** __restrict, size_t * __restrict, FILE * __restrict);
1.57      perry     246: void    perror(const char *);
1.73      christos  247: int     printf(const char * __restrict, ...)
1.76      joerg     248:                __printflike(1, 2);
1.57      perry     249: int     putc(int, FILE *);
                    250: int     putchar(int);
                    251: int     puts(const char *);
                    252: int     remove(const char *);
                    253: void    rewind(FILE *);
1.73      christos  254: int     scanf(const char * __restrict, ...)
1.76      joerg     255:                __scanflike(1, 2);
1.57      perry     256: void    setbuf(FILE * __restrict, char * __restrict);
                    257: int     setvbuf(FILE * __restrict, char * __restrict, int, size_t);
1.73      christos  258: int     sscanf(const char * __restrict, const char * __restrict, ...)
1.76      joerg     259:                __scanflike(2, 3);
1.57      perry     260: FILE   *tmpfile(void);
                    261: int     ungetc(int, FILE *);
1.73      christos  262: int     vfprintf(FILE * __restrict, const char * __restrict, _BSD_VA_LIST_)
1.76      joerg     263:                __printflike(2, 0);
1.73      christos  264: int     vprintf(const char * __restrict, _BSD_VA_LIST_)
1.76      joerg     265:                __printflike(1, 0);
1.24      mycroft   266:
                    267: #ifndef __AUDIT__
1.57      perry     268: char   *gets(char *);
1.73      christos  269: int     sprintf(char * __restrict, const char * __restrict, ...)
1.76      joerg     270:                __printflike(2, 3);
1.57      perry     271: char   *tmpnam(char *);
                    272: int     vsprintf(char * __restrict, const char * __restrict,
1.73      christos  273:     _BSD_VA_LIST_)
1.76      joerg     274:                __printflike(2, 0);
1.24      mycroft   275: #endif
1.21      kleink    276:
                    277: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)
1.57      perry     278: int     rename (const char *, const char *) __RENAME(__posix_rename);
1.21      kleink    279: #else
1.57      perry     280: int     rename (const char *, const char *);
1.21      kleink    281: #endif
1.1       cgd       282: __END_DECLS
                    283:
                    284: /*
1.29      kleink    285:  * IEEE Std 1003.1-90
1.1       cgd       286:  */
1.51      bjh21     287: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
                    288:     defined(_NETBSD_SOURCE)
1.1       cgd       289: #define        L_ctermid       1024    /* size for ctermid(); PATH_MAX */
1.7       jtc       290: #define L_cuserid      9       /* size for cuserid(); UT_NAMESIZE + 1 */
1.1       cgd       291:
                    292: __BEGIN_DECLS
1.57      perry     293: char   *ctermid(char *);
1.40      christos  294: #ifndef __CUSERID_DECLARED
                    295: #define __CUSERID_DECLARED
                    296: /* also declared in unistd.h */
1.57      perry     297: char   *cuserid(char *);
1.40      christos  298: #endif /* __CUSERID_DECLARED */
1.57      perry     299: FILE   *fdopen(int, const char *);
                    300: int     fileno(FILE *);
1.1       cgd       301: __END_DECLS
                    302: #endif /* not ANSI */
                    303:
1.29      kleink    304: /*
                    305:  * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
                    306:  */
1.51      bjh21     307: #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
                    308:     defined(_REENTRANT) || defined(_NETBSD_SOURCE)
1.29      kleink    309: __BEGIN_DECLS
1.57      perry     310: void   flockfile(FILE *);
                    311: int    ftrylockfile(FILE *);
                    312: void   funlockfile(FILE *);
                    313: int    getc_unlocked(FILE *);
                    314: int    getchar_unlocked(void);
                    315: int    putc_unlocked(int, FILE *);
                    316: int    putchar_unlocked(int);
1.29      kleink    317: __END_DECLS
1.51      bjh21     318: #endif /* _POSIX_C_SOURCE >= 1995056 || _XOPEN_SOURCE >= 500 || ... */
1.19      jtc       319:
1.1       cgd       320: /*
1.29      kleink    321:  * Functions defined in POSIX 1003.2 and XPG2 or later.
1.1       cgd       322:  */
1.51      bjh21     323: #if (_POSIX_C_SOURCE - 0) >= 2 || (_XOPEN_SOURCE - 0) >= 2 || \
                    324:     defined(_NETBSD_SOURCE)
1.1       cgd       325: __BEGIN_DECLS
1.57      perry     326: int     pclose(FILE *);
                    327: FILE   *popen(const char *, const char *);
1.22      kleink    328: __END_DECLS
                    329: #endif
                    330:
                    331: /*
1.60      kleink    332:  * Functions defined in ISO XPG4.2, ISO C99, POSIX 1003.1-2001 or later.
                    333:  */
1.67      bjh21     334: #if ((__STDC_VERSION__ - 0) >= 199901L) || \
1.60      kleink    335:     ((_POSIX_C_SOURCE - 0) >= 200112L) || \
                    336:     (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
                    337:     ((_XOPEN_SOURCE - 0) >= 500) || \
                    338:     defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
1.64      mrg       339: __BEGIN_DECLS
1.60      kleink    340: int     snprintf(char * __restrict, size_t, const char * __restrict, ...)
1.76      joerg     341:                __printflike(3, 4);
1.60      kleink    342: int     vsnprintf(char * __restrict, size_t, const char * __restrict,
                    343:            _BSD_VA_LIST_)
1.76      joerg     344:                __printflike(3, 0);
1.64      mrg       345: __END_DECLS
1.60      kleink    346: #endif
                    347:
                    348: /*
1.22      kleink    349:  * Functions defined in XPG4.2.
                    350:  */
1.51      bjh21     351: #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
1.22      kleink    352: __BEGIN_DECLS
1.57      perry     353: int     getw(FILE *);
                    354: int     putw(int, FILE *);
1.24      mycroft   355:
                    356: #ifndef __AUDIT__
1.57      perry     357: char   *tempnam(const char *, const char *);
1.24      mycroft   358: #endif
1.22      kleink    359: __END_DECLS
                    360: #endif
1.34      kleink    361:
                    362: /*
                    363:  * X/Open CAE Specification Issue 5 Version 2
                    364:  */
1.51      bjh21     365: #if (_XOPEN_SOURCE - 0) >= 500 || defined(_LARGEFILE_SOURCE) || \
                    366:     defined(_NETBSD_SOURCE)
1.34      kleink    367: #ifndef        off_t
                    368: typedef        __off_t         off_t;
1.38      kleink    369: #define        off_t           __off_t
1.35      drochner  370: #endif /* off_t */
1.34      kleink    371:
1.36      enami     372: __BEGIN_DECLS
1.57      perry     373: int     fseeko(FILE *, off_t, int);
                    374: off_t   ftello(FILE *);
1.36      enami     375: __END_DECLS
1.51      bjh21     376: #endif /* _XOPEN_SOURCE >= 500 || _LARGEFILE_SOURCE || _NETBSD_SOURCE */
1.22      kleink    377:
                    378: /*
1.72      matt      379:  * Functions defined in ISO C99.  Still put under _NETBSD_SOURCE due to
                    380:  * backward compatible.
                    381:  */
                    382: #if defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
                    383: __BEGIN_DECLS
                    384: int     vscanf(const char * __restrict, _BSD_VA_LIST_)
1.76      joerg     385:                __scanflike(1, 0);
1.72      matt      386: int     vfscanf(FILE * __restrict, const char * __restrict, _BSD_VA_LIST_)
1.76      joerg     387:                __scanflike(2, 0);
1.72      matt      388: int     vsscanf(const char * __restrict, const char * __restrict,
1.73      christos  389:     _BSD_VA_LIST_)
1.76      joerg     390:     __scanflike(2, 0);
1.72      matt      391: __END_DECLS
                    392: #endif /* _ISOC99_SOURCE || _NETBSD_SOURCE */
                    393:
                    394: /*
1.22      kleink    395:  * Routines that are purely local.
                    396:  */
1.51      bjh21     397: #if defined(_NETBSD_SOURCE)
1.46      lukem     398:
                    399: #define        FPARSELN_UNESCESC       0x01
                    400: #define        FPARSELN_UNESCCONT      0x02
                    401: #define        FPARSELN_UNESCCOMM      0x04
                    402: #define        FPARSELN_UNESCREST      0x08
                    403: #define        FPARSELN_UNESCALL       0x0f
                    404:
1.22      kleink    405: __BEGIN_DECLS
1.57      perry     406: int     asprintf(char ** __restrict, const char * __restrict, ...)
1.76      joerg     407:                __printflike(2, 3);
1.57      perry     408: char   *fgetln(FILE * __restrict, size_t * __restrict);
1.46      lukem     409: char   *fparseln(FILE *, size_t *, size_t *, const char[3], int);
1.57      perry     410: int     fpurge(FILE *);
                    411: void    setbuffer(FILE *, char *, int);
                    412: int     setlinebuf(FILE *);
                    413: int     vasprintf(char ** __restrict, const char * __restrict,
1.73      christos  414:     _BSD_VA_LIST_)
1.76      joerg     415:                __printflike(2, 0);
1.62      perry     416: const char *fmtcheck(const char *, const char *)
1.76      joerg     417:                __format_arg(2);
1.1       cgd       418: __END_DECLS
                    419:
                    420: /*
                    421:  * Stdio function-access interface.
                    422:  */
                    423: __BEGIN_DECLS
1.57      perry     424: FILE   *funopen(const void *,
1.1       cgd       425:                int (*)(void *, char *, int),
                    426:                int (*)(void *, const char *, int),
                    427:                fpos_t (*)(void *, fpos_t, int),
1.57      perry     428:                int (*)(void *));
1.1       cgd       429: __END_DECLS
                    430: #define        fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
                    431: #define        fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
1.51      bjh21     432: #endif /* _NETBSD_SOURCE */
1.1       cgd       433:
                    434: /*
                    435:  * Functions internal to the implementation.
                    436:  */
                    437: __BEGIN_DECLS
1.57      perry     438: int    __srget(FILE *);
                    439: int    __swbuf(int, FILE *);
1.1       cgd       440: __END_DECLS
                    441:
                    442: /*
                    443:  * The __sfoo macros are here so that we can
                    444:  * define function versions in the C library.
                    445:  */
                    446: #define        __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
                    447: #if defined(__GNUC__) && defined(__STDC__)
1.63      perry     448: static __inline int __sputc(int _c, FILE *_p) {
1.1       cgd       449:        if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
                    450:                return (*_p->_p++ = _c);
                    451:        else
                    452:                return (__swbuf(_c, _p));
                    453: }
                    454: #else
                    455: /*
                    456:  * This has been tuned to generate reasonable code on the vax using pcc.
                    457:  */
                    458: #define        __sputc(c, p) \
                    459:        (--(p)->_w < 0 ? \
                    460:                (p)->_w >= (p)->_lbfsize ? \
                    461:                        (*(p)->_p = (c)), *(p)->_p != '\n' ? \
                    462:                                (int)*(p)->_p++ : \
                    463:                                __swbuf('\n', p) : \
                    464:                        __swbuf((int)(c), p) : \
                    465:                (*(p)->_p = (c), (int)*(p)->_p++))
                    466: #endif
                    467:
                    468: #define        __sfeof(p)      (((p)->_flags & __SEOF) != 0)
                    469: #define        __sferror(p)    (((p)->_flags & __SERR) != 0)
                    470: #define        __sclearerr(p)  ((void)((p)->_flags &= ~(__SERR|__SEOF)))
1.71      christos  471: #define        __sfileno(p)    \
                    472:     ((p)->_file == -1 ? -1 : (int)(unsigned short)(p)->_file)
1.1       cgd       473:
1.56      kleink    474: #ifndef __lint__
1.50      kleink    475: #if !defined(_REENTRANT) && !defined(_PTHREADS)
1.1       cgd       476: #define        feof(p)         __sfeof(p)
                    477: #define        ferror(p)       __sferror(p)
                    478: #define        clearerr(p)     __sclearerr(p)
                    479:
                    480: #define        getc(fp)        __sgetc(fp)
                    481: #define putc(x, fp)    __sputc(x, fp)
1.50      kleink    482: #endif /* !_REENTRANT && !_PTHREADS */
1.56      kleink    483: #endif /* __lint__ */
1.1       cgd       484:
                    485: #define        getchar()       getc(stdin)
                    486: #define        putchar(x)      putc(x, stdout)
1.19      jtc       487:
1.51      bjh21     488: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
                    489:     defined(_NETBSD_SOURCE)
1.50      kleink    490: #if !defined(_REENTRANT) && !defined(_PTHREADS)
1.19      jtc       491: #define        fileno(p)       __sfileno(p)
1.50      kleink    492: #endif /* !_REENTRANT && !_PTHREADS */
1.30      kleink    493: #endif /* !_ANSI_SOURCE */
1.19      jtc       494:
1.77      christos  495: #if (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE)
                    496: int     vdprintf(int, const char * __restrict, _BSD_VA_LIST_)
                    497:                __printflike(2, 0);
                    498: int     dprintf(int, const char * __restrict, ...)
                    499:                __printflike(2, 3);
                    500: #endif /* (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE) */
                    501:
1.51      bjh21     502: #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
                    503:     defined(_REENTRANT) || defined(_NETBSD_SOURCE)
1.19      jtc       504: #define getc_unlocked(fp)      __sgetc(fp)
                    505: #define putc_unlocked(x, fp)   __sputc(x, fp)
                    506:
                    507: #define getchar_unlocked()     getc_unlocked(stdin)
                    508: #define putchar_unlocked(x)    putc_unlocked(x, stdout)
1.51      bjh21     509: #endif /* _POSIX_C_SOURCE >= 199506 || _XOPEN_SOURCE >= 500 || _REENTRANT... */
1.19      jtc       510:
1.78    ! tnozaki   511: #if (_POSIX_C_SOURCE - 0) >= 200809L || (_XOPEN_SOURCE - 0) >= 700 || \
        !           512:     defined(_NETBSD_SOURCE)
        !           513: FILE *fmemopen(void * __restrict, size_t, const char * __restrict);
        !           514: #endif
        !           515:
1.70      kristerw  516: #if _FORTIFY_SOURCE > 0
1.69      tls       517: #include <ssp/stdio.h>
1.70      kristerw  518: #endif
1.69      tls       519:
1.1       cgd       520: #endif /* _STDIO_H_ */

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