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Annotation of src/include/stdio.h, Revision 1.65

1.65    ! christos    1: /*     $NetBSD: stdio.h,v 1.64 2006/05/10 21:09:45 mrg 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
                     49:
1.32      kleink     50: #include <sys/null.h>
1.1       cgd        51:
1.11      cgd        52: /*
                     53:  * This is fairly grotesque, but pure ANSI code must not inspect the
                     54:  * innards of an fpos_t anyway.  The library internally uses off_t,
                     55:  * which we assume is exactly as big as eight chars.
                     56:  */
1.37      mycroft    57: #if (!defined(_ANSI_SOURCE) && !defined(__STRICT_ANSI__)) || defined(_LIBC)
1.33      kleink     58: typedef __off_t fpos_t;
1.11      cgd        59: #else
                     60: typedef struct __sfpos {
1.33      kleink     61:        __off_t _pos;
1.11      cgd        62: } fpos_t;
                     63: #endif
1.1       cgd        64:
                     65: #define        _FSTDIO                 /* Define for new stdio with functions. */
                     66:
                     67: /*
                     68:  * NB: to fit things in six character monocase externals, the stdio
                     69:  * code uses the prefix `__s' for stdio objects, typically followed
                     70:  * by a three-character attempt at a mnemonic.
                     71:  */
                     72:
                     73: /* stdio buffers */
                     74: struct __sbuf {
                     75:        unsigned char *_base;
                     76:        int     _size;
                     77: };
                     78:
                     79: /*
                     80:  * stdio state variables.
                     81:  *
                     82:  * The following always hold:
                     83:  *
                     84:  *     if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
                     85:  *             _lbfsize is -_bf._size, else _lbfsize is 0
                     86:  *     if _flags&__SRD, _w is 0
                     87:  *     if _flags&__SWR, _r is 0
                     88:  *
                     89:  * This ensures that the getc and putc macros (or inline functions) never
                     90:  * try to write or read from a file that is in `read' or `write' mode.
                     91:  * (Moreover, they can, and do, automatically switch from read mode to
                     92:  * write mode, and back, on "r+" and "w+" files.)
                     93:  *
                     94:  * _lbfsize is used only to make the inline line-buffered output stream
                     95:  * code as compact as possible.
                     96:  *
                     97:  * _ub, _up, and _ur are used when ungetc() pushes back more characters
                     98:  * than fit in the current _bf, or when ungetc() pushes back a character
                     99:  * that does not match the previous one in _bf.  When this happens,
                    100:  * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
                    101:  * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
1.20      perry     102:  *
                    103:  * NB: see WARNING above before changing the layout of this structure!
1.1       cgd       104:  */
                    105: typedef        struct __sFILE {
                    106:        unsigned char *_p;      /* current position in (some) buffer */
                    107:        int     _r;             /* read space left for getc() */
                    108:        int     _w;             /* write space left for putc() */
1.65    ! christos  109:        unsigned short _flags;  /* flags, below; this FILE is free if 0 */
1.1       cgd       110:        short   _file;          /* fileno, if Unix descriptor, else -1 */
                    111:        struct  __sbuf _bf;     /* the buffer (at least 1 byte, if !NULL) */
                    112:        int     _lbfsize;       /* 0 or -_bf._size, for inline putc */
                    113:
                    114:        /* operations */
                    115:        void    *_cookie;       /* cookie passed to io functions */
1.57      perry     116:        int     (*_close)(void *);
                    117:        int     (*_read) (void *, char *, int);
                    118:        fpos_t  (*_seek) (void *, fpos_t, int);
                    119:        int     (*_write)(void *, const char *, int);
1.1       cgd       120:
1.42      yamt      121:        /* file extension */
                    122:        struct  __sbuf _ext;
                    123:
1.1       cgd       124:        /* separate buffer for long sequences of ungetc() */
                    125:        unsigned char *_up;     /* saved _p when _p is doing ungetc data */
                    126:        int     _ur;            /* saved _r when _r is counting ungetc data */
                    127:
                    128:        /* tricks to meet minimum requirements even when malloc() fails */
                    129:        unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
                    130:        unsigned char _nbuf[1]; /* guarantee a getc() buffer */
                    131:
1.10      cgd       132:        /* separate buffer for fgetln() when line crosses buffer boundary */
                    133:        struct  __sbuf _lb;     /* buffer for fgetln() */
1.1       cgd       134:
                    135:        /* Unix stdio files get aligned to block boundaries on fseek() */
                    136:        int     _blksize;       /* stat.st_blksize (may be != _bf._size) */
1.11      cgd       137:        fpos_t  _offset;        /* current lseek offset */
1.1       cgd       138: } FILE;
                    139:
                    140: __BEGIN_DECLS
                    141: extern FILE __sF[];
                    142: __END_DECLS
                    143:
                    144: #define        __SLBF  0x0001          /* line buffered */
                    145: #define        __SNBF  0x0002          /* unbuffered */
                    146: #define        __SRD   0x0004          /* OK to read */
                    147: #define        __SWR   0x0008          /* OK to write */
                    148:        /* RD and WR are never simultaneously asserted */
                    149: #define        __SRW   0x0010          /* open for reading & writing */
                    150: #define        __SEOF  0x0020          /* found EOF */
                    151: #define        __SERR  0x0040          /* found error */
                    152: #define        __SMBF  0x0080          /* _buf is from malloc */
                    153: #define        __SAPP  0x0100          /* fdopen()ed in append mode */
                    154: #define        __SSTR  0x0200          /* this is an sprintf/snprintf string */
1.36      enami     155: #define        __SOPT  0x0400          /* do fseek() optimization */
                    156: #define        __SNPT  0x0800          /* do not do fseek() optimization */
1.1       cgd       157: #define        __SOFF  0x1000          /* set iff _offset is in fact correct */
1.10      cgd       158: #define        __SMOD  0x2000          /* true => fgetln modified _p text */
1.27      perry     159: #define        __SALC  0x4000          /* allocate string space dynamically */
1.65    ! christos  160: #define        __SAFE  0x8000          /* don't call signal-unsafe functions */
1.1       cgd       161:
                    162: /*
                    163:  * The following three definitions are for ANSI C, which took them
                    164:  * from System V, which brilliantly took internal interface macros and
                    165:  * made them official arguments to setvbuf(), without renaming them.
                    166:  * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
                    167:  *
                    168:  * Although numbered as their counterparts above, the implementation
                    169:  * does not rely on this.
                    170:  */
                    171: #define        _IOFBF  0               /* setvbuf should set fully buffered */
                    172: #define        _IOLBF  1               /* setvbuf should set line buffered */
                    173: #define        _IONBF  2               /* setvbuf should set unbuffered */
                    174:
                    175: #define        BUFSIZ  1024            /* size of buffer used by setbuf */
                    176: #define        EOF     (-1)
                    177:
                    178: /*
1.20      perry     179:  * FOPEN_MAX is a minimum maximum, and is the number of streams that
                    180:  * stdio can provide without attempting to allocate further resources
                    181:  * (which could fail).  Do not use this for anything.
1.1       cgd       182:  */
1.20      perry     183:                                /* must be == _POSIX_STREAM_MAX <limits.h> */
1.1       cgd       184: #define        FOPEN_MAX       20      /* must be <= OPEN_MAX <sys/syslimits.h> */
                    185: #define        FILENAME_MAX    1024    /* must be <= PATH_MAX <sys/syslimits.h> */
                    186:
                    187: /* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
1.52      bjh21     188: #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
1.1       cgd       189: #define        P_tmpdir        "/var/tmp/"
                    190: #endif
                    191: #define        L_tmpnam        1024    /* XXX must be == PATH_MAX */
1.49      christos  192: /* Always ensure that this is consistent with <limits.h> */
                    193: #ifndef TMP_MAX
                    194: #define TMP_MAX                        308915776       /* Legacy */
                    195: #endif
1.1       cgd       196:
1.22      kleink    197: /* Always ensure that these are consistent with <fcntl.h> and <unistd.h>! */
1.1       cgd       198: #ifndef SEEK_SET
                    199: #define        SEEK_SET        0       /* set file offset to offset */
                    200: #endif
                    201: #ifndef SEEK_CUR
                    202: #define        SEEK_CUR        1       /* set file offset to current plus offset */
                    203: #endif
                    204: #ifndef SEEK_END
                    205: #define        SEEK_END        2       /* set file offset to EOF plus offset */
                    206: #endif
                    207:
                    208: #define        stdin   (&__sF[0])
                    209: #define        stdout  (&__sF[1])
                    210: #define        stderr  (&__sF[2])
                    211:
                    212: /*
                    213:  * Functions defined in ANSI C standard.
                    214:  */
                    215: __BEGIN_DECLS
1.57      perry     216: void    clearerr(FILE *);
                    217: int     fclose(FILE *);
                    218: int     feof(FILE *);
                    219: int     ferror(FILE *);
                    220: int     fflush(FILE *);
                    221: int     fgetc(FILE *);
                    222: int     fgetpos(FILE * __restrict, fpos_t * __restrict);
                    223: char   *fgets(char * __restrict, int, FILE * __restrict);
1.59      kleink    224: FILE   *fopen(const char * __restrict , const char * __restrict);
1.57      perry     225: int     fprintf(FILE * __restrict , const char * __restrict, ...);
                    226: int     fputc(int, FILE *);
                    227: int     fputs(const char * __restrict, FILE * __restrict);
                    228: size_t  fread(void * __restrict, size_t, size_t, FILE * __restrict);
1.59      kleink    229: FILE   *freopen(const char * __restrict, const char * __restrict,
                    230:            FILE * __restrict);
1.57      perry     231: int     fscanf(FILE * __restrict, const char * __restrict, ...);
                    232: int     fseek(FILE *, long, int);
                    233: int     fsetpos(FILE *, const fpos_t *);
                    234: long    ftell(FILE *);
                    235: size_t  fwrite(const void * __restrict, size_t, size_t, FILE * __restrict);
                    236: int     getc(FILE *);
                    237: int     getchar(void);
                    238: void    perror(const char *);
                    239: int     printf(const char * __restrict, ...);
                    240: int     putc(int, FILE *);
                    241: int     putchar(int);
                    242: int     puts(const char *);
                    243: int     remove(const char *);
                    244: void    rewind(FILE *);
                    245: int     scanf(const char * __restrict, ...);
                    246: void    setbuf(FILE * __restrict, char * __restrict);
                    247: int     setvbuf(FILE * __restrict, char * __restrict, int, size_t);
                    248: int     sscanf(const char * __restrict, const char * __restrict, ...);
                    249: FILE   *tmpfile(void);
                    250: int     ungetc(int, FILE *);
                    251: int     vfprintf(FILE * __restrict, const char * __restrict, _BSD_VA_LIST_);
                    252: int     vprintf(const char * __restrict, _BSD_VA_LIST_);
1.24      mycroft   253:
                    254: #ifndef __AUDIT__
1.57      perry     255: char   *gets(char *);
                    256: int     sprintf(char * __restrict, const char * __restrict, ...);
                    257: char   *tmpnam(char *);
                    258: int     vsprintf(char * __restrict, const char * __restrict,
                    259:            _BSD_VA_LIST_);
1.24      mycroft   260: #endif
1.21      kleink    261:
                    262: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)
1.57      perry     263: int     rename (const char *, const char *) __RENAME(__posix_rename);
1.21      kleink    264: #else
1.57      perry     265: int     rename (const char *, const char *);
1.21      kleink    266: #endif
1.1       cgd       267: __END_DECLS
                    268:
                    269: /*
1.29      kleink    270:  * IEEE Std 1003.1-90
1.1       cgd       271:  */
1.51      bjh21     272: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
                    273:     defined(_NETBSD_SOURCE)
1.1       cgd       274: #define        L_ctermid       1024    /* size for ctermid(); PATH_MAX */
1.7       jtc       275: #define L_cuserid      9       /* size for cuserid(); UT_NAMESIZE + 1 */
1.1       cgd       276:
                    277: __BEGIN_DECLS
1.57      perry     278: char   *ctermid(char *);
1.40      christos  279: #ifndef __CUSERID_DECLARED
                    280: #define __CUSERID_DECLARED
                    281: /* also declared in unistd.h */
1.57      perry     282: char   *cuserid(char *);
1.40      christos  283: #endif /* __CUSERID_DECLARED */
1.57      perry     284: FILE   *fdopen(int, const char *);
                    285: int     fileno(FILE *);
1.1       cgd       286: __END_DECLS
                    287: #endif /* not ANSI */
                    288:
1.29      kleink    289: /*
                    290:  * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
                    291:  */
1.51      bjh21     292: #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
                    293:     defined(_REENTRANT) || defined(_NETBSD_SOURCE)
1.29      kleink    294: __BEGIN_DECLS
1.57      perry     295: void   flockfile(FILE *);
                    296: int    ftrylockfile(FILE *);
                    297: void   funlockfile(FILE *);
                    298: int    getc_unlocked(FILE *);
                    299: int    getchar_unlocked(void);
                    300: int    putc_unlocked(int, FILE *);
                    301: int    putchar_unlocked(int);
1.29      kleink    302: __END_DECLS
1.51      bjh21     303: #endif /* _POSIX_C_SOURCE >= 1995056 || _XOPEN_SOURCE >= 500 || ... */
1.19      jtc       304:
1.1       cgd       305: /*
1.29      kleink    306:  * Functions defined in POSIX 1003.2 and XPG2 or later.
1.1       cgd       307:  */
1.51      bjh21     308: #if (_POSIX_C_SOURCE - 0) >= 2 || (_XOPEN_SOURCE - 0) >= 2 || \
                    309:     defined(_NETBSD_SOURCE)
1.1       cgd       310: __BEGIN_DECLS
1.57      perry     311: int     pclose(FILE *);
                    312: FILE   *popen(const char *, const char *);
1.22      kleink    313: __END_DECLS
                    314: #endif
                    315:
                    316: /*
1.60      kleink    317:  * Functions defined in ISO XPG4.2, ISO C99, POSIX 1003.1-2001 or later.
                    318:  */
                    319: #if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
                    320:     !defined(_XOPEN_SOURCE) || \
                    321:     ((__STDC_VERSION__ - 0) >= 199901L) || \
                    322:     ((_POSIX_C_SOURCE - 0) >= 200112L) || \
                    323:     (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
                    324:     ((_XOPEN_SOURCE - 0) >= 500) || \
                    325:     defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
1.64      mrg       326: __BEGIN_DECLS
1.60      kleink    327: int     snprintf(char * __restrict, size_t, const char * __restrict, ...)
                    328:            __attribute__((__format__(__printf__, 3, 4)));
                    329: int     vsnprintf(char * __restrict, size_t, const char * __restrict,
                    330:            _BSD_VA_LIST_)
                    331:            __attribute__((__format__(__printf__, 3, 0)));
1.64      mrg       332: __END_DECLS
1.60      kleink    333: #endif
1.65    ! christos  334: #ifdef _NETBSD_SOURCE
        !           335: int     snprintf_ss(char * __restrict, size_t, const char * __restrict, ...)
        !           336:            __attribute__((__format__(__printf__, 3, 4)));
        !           337: int     vsnprintf_ss(char * __restrict, size_t, const char * __restrict,
        !           338:            _BSD_VA_LIST_)
        !           339:            __attribute__((__format__(__printf__, 3, 0)));
        !           340: #endif
1.60      kleink    341:
                    342: /*
1.22      kleink    343:  * Functions defined in XPG4.2.
                    344:  */
1.51      bjh21     345: #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
1.22      kleink    346: __BEGIN_DECLS
1.57      perry     347: int     getw(FILE *);
                    348: int     putw(int, FILE *);
1.24      mycroft   349:
                    350: #ifndef __AUDIT__
1.57      perry     351: char   *tempnam(const char *, const char *);
1.24      mycroft   352: #endif
1.22      kleink    353: __END_DECLS
                    354: #endif
1.34      kleink    355:
                    356: /*
                    357:  * X/Open CAE Specification Issue 5 Version 2
                    358:  */
1.51      bjh21     359: #if (_XOPEN_SOURCE - 0) >= 500 || defined(_LARGEFILE_SOURCE) || \
                    360:     defined(_NETBSD_SOURCE)
1.34      kleink    361: #ifndef        off_t
                    362: typedef        __off_t         off_t;
1.38      kleink    363: #define        off_t           __off_t
1.35      drochner  364: #endif /* off_t */
1.34      kleink    365:
1.36      enami     366: __BEGIN_DECLS
1.57      perry     367: int     fseeko(FILE *, off_t, int);
                    368: off_t   ftello(FILE *);
1.36      enami     369: __END_DECLS
1.51      bjh21     370: #endif /* _XOPEN_SOURCE >= 500 || _LARGEFILE_SOURCE || _NETBSD_SOURCE */
1.22      kleink    371:
                    372: /*
                    373:  * Routines that are purely local.
                    374:  */
1.51      bjh21     375: #if defined(_NETBSD_SOURCE)
1.46      lukem     376:
                    377: #define        FPARSELN_UNESCESC       0x01
                    378: #define        FPARSELN_UNESCCONT      0x02
                    379: #define        FPARSELN_UNESCCOMM      0x04
                    380: #define        FPARSELN_UNESCREST      0x08
                    381: #define        FPARSELN_UNESCALL       0x0f
                    382:
1.22      kleink    383: __BEGIN_DECLS
1.57      perry     384: int     asprintf(char ** __restrict, const char * __restrict, ...)
1.41      kleink    385:            __attribute__((__format__(__printf__, 2, 3)));
1.57      perry     386: char   *fgetln(FILE * __restrict, size_t * __restrict);
1.46      lukem     387: char   *fparseln(FILE *, size_t *, size_t *, const char[3], int);
1.57      perry     388: int     fpurge(FILE *);
                    389: void    setbuffer(FILE *, char *, int);
                    390: int     setlinebuf(FILE *);
                    391: int     vasprintf(char ** __restrict, const char * __restrict,
                    392:            _BSD_VA_LIST_)
1.41      kleink    393:            __attribute__((__format__(__printf__, 2, 0)));
1.57      perry     394: int     vscanf(const char * __restrict, _BSD_VA_LIST_)
1.26      mycroft   395:            __attribute__((__format__(__scanf__, 1, 0)));
1.57      perry     396: int     vfscanf(FILE * __restrict, const char * __restrict,
                    397:            _BSD_VA_LIST_)
1.45      thorpej   398:            __attribute__((__format__(__scanf__, 2, 0)));
1.57      perry     399: int     vsscanf(const char * __restrict, const char * __restrict,
                    400:            _BSD_VA_LIST_)
1.26      mycroft   401:            __attribute__((__format__(__scanf__, 2, 0)));
1.62      perry     402: const char *fmtcheck(const char *, const char *)
1.41      kleink    403:            __attribute__((__format_arg__(2)));
1.1       cgd       404: __END_DECLS
                    405:
                    406: /*
                    407:  * Stdio function-access interface.
                    408:  */
                    409: __BEGIN_DECLS
1.57      perry     410: FILE   *funopen(const void *,
1.1       cgd       411:                int (*)(void *, char *, int),
                    412:                int (*)(void *, const char *, int),
                    413:                fpos_t (*)(void *, fpos_t, int),
1.57      perry     414:                int (*)(void *));
1.1       cgd       415: __END_DECLS
                    416: #define        fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
                    417: #define        fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
1.51      bjh21     418: #endif /* _NETBSD_SOURCE */
1.1       cgd       419:
                    420: /*
                    421:  * Functions internal to the implementation.
                    422:  */
                    423: __BEGIN_DECLS
1.57      perry     424: int    __srget(FILE *);
                    425: int    __swbuf(int, FILE *);
1.1       cgd       426: __END_DECLS
                    427:
                    428: /*
                    429:  * The __sfoo macros are here so that we can
                    430:  * define function versions in the C library.
                    431:  */
                    432: #define        __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
                    433: #if defined(__GNUC__) && defined(__STDC__)
1.63      perry     434: static __inline int __sputc(int _c, FILE *_p) {
1.1       cgd       435:        if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
                    436:                return (*_p->_p++ = _c);
                    437:        else
                    438:                return (__swbuf(_c, _p));
                    439: }
                    440: #else
                    441: /*
                    442:  * This has been tuned to generate reasonable code on the vax using pcc.
                    443:  */
                    444: #define        __sputc(c, p) \
                    445:        (--(p)->_w < 0 ? \
                    446:                (p)->_w >= (p)->_lbfsize ? \
                    447:                        (*(p)->_p = (c)), *(p)->_p != '\n' ? \
                    448:                                (int)*(p)->_p++ : \
                    449:                                __swbuf('\n', p) : \
                    450:                        __swbuf((int)(c), p) : \
                    451:                (*(p)->_p = (c), (int)*(p)->_p++))
                    452: #endif
                    453:
                    454: #define        __sfeof(p)      (((p)->_flags & __SEOF) != 0)
                    455: #define        __sferror(p)    (((p)->_flags & __SERR) != 0)
                    456: #define        __sclearerr(p)  ((void)((p)->_flags &= ~(__SERR|__SEOF)))
                    457: #define        __sfileno(p)    ((p)->_file)
                    458:
1.56      kleink    459: #ifndef __lint__
1.50      kleink    460: #if !defined(_REENTRANT) && !defined(_PTHREADS)
1.1       cgd       461: #define        feof(p)         __sfeof(p)
                    462: #define        ferror(p)       __sferror(p)
                    463: #define        clearerr(p)     __sclearerr(p)
                    464:
                    465: #define        getc(fp)        __sgetc(fp)
                    466: #define putc(x, fp)    __sputc(x, fp)
1.50      kleink    467: #endif /* !_REENTRANT && !_PTHREADS */
1.56      kleink    468: #endif /* __lint__ */
1.1       cgd       469:
                    470: #define        getchar()       getc(stdin)
                    471: #define        putchar(x)      putc(x, stdout)
1.19      jtc       472:
1.51      bjh21     473: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
                    474:     defined(_NETBSD_SOURCE)
1.50      kleink    475: #if !defined(_REENTRANT) && !defined(_PTHREADS)
1.19      jtc       476: #define        fileno(p)       __sfileno(p)
1.50      kleink    477: #endif /* !_REENTRANT && !_PTHREADS */
1.30      kleink    478: #endif /* !_ANSI_SOURCE */
1.19      jtc       479:
1.51      bjh21     480: #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
                    481:     defined(_REENTRANT) || defined(_NETBSD_SOURCE)
1.19      jtc       482: #define getc_unlocked(fp)      __sgetc(fp)
                    483: #define putc_unlocked(x, fp)   __sputc(x, fp)
                    484:
                    485: #define getchar_unlocked()     getc_unlocked(stdin)
                    486: #define putchar_unlocked(x)    putc_unlocked(x, stdout)
1.51      bjh21     487: #endif /* _POSIX_C_SOURCE >= 199506 || _XOPEN_SOURCE >= 500 || _REENTRANT... */
1.19      jtc       488:
1.1       cgd       489: #endif /* _STDIO_H_ */

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