/* stdio.h,v 1.13 2004/09/14 22:27:36 bird Exp */ /** @file * FreeBSD 5.1 * @changed bird: EMX isms + LIBC implementation specifics. * @changed bird: Made quite a few @todos on function which aren't implemented. */ /*- * 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 * $FreeBSD: src/include/stdio.h,v 1.51 2003/01/13 08:41:47 tjr Exp $ */ #ifndef _STDIO_H_ #define _STDIO_H_ #include #include typedef __off_t fpos_t; #if !defined(_SIZE_T_DECLARED) && !defined(_SIZE_T) /* bird: emx */ typedef __size_t size_t; #define _SIZE_T_DECLARED #define _SIZE_T /* bird: emx */ #endif #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE #if !defined(_VA_LIST_DECLARED) && !defined(_VA_LIST) /* bird: emx */ typedef __va_list va_list; #define _VA_LIST_DECLARED #define _VA_LIST /* bird: emx */ #endif #endif #ifndef NULL #define NULL 0 #endif #if 0 /* bird: emx */ #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; }; /* hold a buncha junk that would grow the ABI */ struct __sFILEX; /* * 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)(void *); int (*_read)(void *, char *, int); fpos_t (*_seek)(void *, fpos_t, int); int (*_write)(void *, const char *, int); /* separate buffer for long sequences of ungetc() */ struct __sbuf _ub; /* ungetc buffer */ struct __sFILEX *_extra; /* additions to FILE to not break ABI */ 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 *__stdinp; extern FILE *__stdoutp; extern FILE *__stderrp; __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 */ #define __SIGN 0x8000 /* ignore this file in _fwalk */ #else /* bird: EMX specific FILE stuff starts. */ #define _FILE_T #define _FILE_MEMBERS_HAVE_UNDERSCORE #define _FILE_STDIO_VERSION (0x06000000 | sizeof(struct __sFILE)) typedef struct __sFILE { unsigned __uVersion; char * _ptr; char * _buffer; int _rcount; int _wcount; int _handle; int _flags; int _buf_size; int _tmpidx; int _pid; char _char_buf; unsigned char _ungetc_count; short _mbstate; int (*_flush)(struct __sFILE *, int); /** The Mutex Semaphore. */ union { #if defined (_SYS_FMUTEX_H) #define __FILE_FSEM_DECLARED /** @todo replace this by a nested lock construct, see flockfile(). */ _fmutex __fsem; #endif char __rsem_ersatz[16]; } __u; /** Pointer to the stream vector which this FILE belongs to. * This member is the first which should not be zeroed by _newstream()! */ void *__pSV; } FILE; __BEGIN_DECLS extern FILE *__stdinp; extern FILE *__stdoutp; extern FILE *__stderrp; __END_DECLS #endif /* bird: EMX specific FILE stuff ends. */ /* * 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 0x20 /* bird: emx, was 1 */ /* setvbuf should set line buffered */ #define _IONBF 0x40 /* bird: emx, was 2 */ /* setvbuf should set unbuffered */ #define BUFSIZ 8192 /* bird: emx, was 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 */ #define FOPEN_MAX 14 /* bird: emx, was 20 */ /* must be <= OPEN_MAX */ #define FILENAME_MAX 260 /* bird: emx, was 1024 */ /* must be <= PATH_MAX */ /* System V/ANSI C; this is the wrong way to do this, do *not* use these. */ #if __XSI_VISIBLE #define P_tmpdir "." /* bird: emx, was "/var/tmp/" */ #endif #define L_tmpnam 260 /* bird: emx, was 1024 */ /* XXX must be == PATH_MAX */ #define TMP_MAX 1000 /* bird: emx, was 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 __stdinp #define stdout __stdoutp #define stderr __stderrp __BEGIN_DECLS /* * Functions defined in ANSI C standard. */ void clearerr(FILE *); int fclose(FILE *); int feof(FILE *); int ferror(FILE *); int fflush(FILE *); int fgetc(FILE *); int fgetpos(FILE * __restrict, fpos_t * __restrict); char *fgets(char * __restrict, int, FILE * __restrict); FILE *fopen(const char * __restrict, const char * __restrict); int fprintf(FILE * __restrict, const char * __restrict, ...); int fputc(int, FILE *); int fputs(const char * __restrict, FILE * __restrict); size_t fread(void * __restrict, size_t, size_t, FILE * __restrict); FILE *freopen(const char * __restrict, const char * __restrict, FILE * __restrict); int fscanf(FILE * __restrict, const char * __restrict, ...); int fseek(FILE *, long, int); int fsetpos(FILE *, const fpos_t *); long ftell(FILE *); size_t fwrite(const void * __restrict, size_t, size_t, FILE * __restrict); int getc(FILE *); int getchar(void); char *gets(char *); void perror(const char *); int printf(const char * __restrict, ...); int putc(int, FILE *); int putchar(int); int puts(const char *); int remove(const char *); int rename(const char *, const char *); void rewind(FILE *); int scanf(const char * __restrict, ...); void setbuf(FILE * __restrict, char * __restrict); int setvbuf(FILE * __restrict, char * __restrict, int, size_t); int sprintf(char * __restrict, const char * __restrict, ...); int sscanf(const char * __restrict, const char * __restrict, ...); FILE *tmpfile(void); char *tmpnam(char *); int ungetc(int, FILE *); int vfprintf(FILE * __restrict, const char * __restrict, __va_list); int vprintf(const char * __restrict, __va_list); int vsprintf(char * __restrict, const char * __restrict, __va_list); #if __ISO_C_VISIBLE >= 1999 int snprintf(char * __restrict, size_t, const char * __restrict, ...) __printflike(3, 4); int vfscanf(FILE * __restrict, const char * __restrict, __va_list) __scanflike(2, 0); int vscanf(const char * __restrict, __va_list) __scanflike(1, 0); int vsnprintf(char * __restrict, size_t, const char * __restrict, __va_list) __printflike(3, 0); int vsscanf(const char * __restrict, const char * __restrict, __va_list) __scanflike(2, 0); #endif /* * Functions defined in all versions of POSIX 1003.1. */ #if __BSD_VISIBLE || __POSIX_VISIBLE <= 199506 /* size for cuserid(3); UT_NAMESIZE + 1, see */ #define L_cuserid 9 /* bird: emx, was 17 */ /* legacy */ #endif #if __POSIX_VISIBLE #define L_ctermid 260 /* bird: emx, was 1024 */ /* size for ctermid(3); PATH_MAX */ /** @todo char *ctermid(char *); */ FILE *fdopen(int, const char *); int fileno(FILE *); #endif /* __POSIX_VISIBLE */ #if __POSIX_VISIBLE >= 199209 int pclose(FILE *); FILE *popen(const char *, const char *); #endif #if __POSIX_VISIBLE >= 199506 int ftrylockfile(FILE *); void flockfile(FILE *); void funlockfile(FILE *); /* * These are normally used through macros as defined below, but POSIX * requires functions as well. */ int getc_unlocked(FILE *); int getchar_unlocked(void); int putc_unlocked(int, FILE *); int putchar_unlocked(int); #endif #if __BSD_VISIBLE void clearerr_unlocked(FILE *); int feof_unlocked(FILE *); int ferror_unlocked(FILE *); int fileno_unlocked(FILE *); #endif #ifdef __USE_MISC int fflush_unlocked(FILE *); size_t fwrite_unlocked(const void * __restrict, size_t, size_t, FILE * __restrict); size_t fread_unlocked(void * __restrict, size_t, size_t, FILE * __restrict); int fgetc_unlocked(FILE *); int fputc_unlocked(int, FILE *); int fputs_unlocked(const char * __restrict, FILE * __restrict); char *fgets_unlocked(char * __restrict, int, FILE * __restrict); int puts_unlocked(const char *); char *gets_unlocked(char *); #endif #if __POSIX_VISIBLE >= 200112 int fseeko(FILE *, __off_t, int); __off_t ftello(FILE *); #endif #if __BSD_VISIBLE || __XSI_VISIBLE > 0 && __XSI_VISIBLE < 600 int getw(FILE *); int putw(int, FILE *); #endif /* BSD or X/Open before issue 6 */ #if __XSI_VISIBLE char *tempnam(const char *, const char *); #endif /* * Routines that are purely local. */ #if __BSD_VISIBLE int asprintf(char **, const char *, ...) __printflike(2, 3); /** @todo char *ctermid_r(char *); */ /** @todo char *fgetln(FILE *, size_t *); */ #if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 || __GNUC__ >= 3 #define __ATTR_FORMAT_ARG __attribute__((__format_arg__(2))) #else #define __ATTR_FORMAT_ARG #endif /** @todo __const char *fmtcheck(const char *, const char *) __ATTR_FORMAT_ARG; */ /** @todo int fpurge(FILE *); */ void setbuffer(FILE *, char *, int); int setlinebuf(FILE *); int vasprintf(char **, const char *, __va_list) __printflike(2, 0); /* * The system error table contains messages for the first sys_nerr * positive errno values. Use strerror() or strerror_r() from * instead. */ extern __const int sys_nerr; extern __const char *__const sys_errlist[]; /* * Stdio function-access interface. */ /** @todo FILE *funopen(const void *, int (*)(void *, char *, int), int (*)(void *, const char *, int), fpos_t (*)(void *, fpos_t, int), int (*)(void *)); */ /** @todo #define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0) */ /** @todo #define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0) */ /* * Portability hacks. See . */ #ifndef _FTRUNCATE_DECLARED #define _FTRUNCATE_DECLARED int ftruncate(int, __off_t); #endif #ifndef _LSEEK_DECLARED #define _LSEEK_DECLARED __off_t lseek(int, __off_t, int); #endif //#ifndef _MMAP_DECLARED //#define _MMAP_DECLARED //void *mmap(void *, size_t, int, int, int, off_t); //#endif #ifndef _TRUNCATE_DECLARED #define _TRUNCATE_DECLARED int truncate(const char *, __off_t); #endif #endif /* __BSD_VISIBLE */ #if 0 /* bird: Skip FreeBSD sepcific LIBC stuff. */ /* * Functions internal to the implementation. */ int __srget(FILE *); int __swbuf(int, FILE *); /* * 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) #if __BSD_VISIBLE /* * 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) #define fileno_unlocked(p) __sfileno(p) #endif #if __POSIX_VISIBLE >= 199506 #define getc_unlocked(fp) __sgetc(fp) #define putc_unlocked(x, fp) __sputc(x, fp) #define getchar_unlocked() getc_unlocked(stdin) #define putchar_unlocked(x) putc_unlocked(x, stdout) #endif #endif /* bird: Skip FreeBSD specific LIBC stuff. */ /* bird: start of EMX isms. */ #if !defined (_IOREAD) /** @todo change to double underscore prefix to prevent confusion with * setvbuf() constants. See the short rant about it above. */ #define _IOREAD 0x01 #define _IOWRT 0x02 #define _IORW 0x04 #define _IOEOF 0x08 #define _IOERR 0x10 #endif int _fill (FILE *); int _flush (int, FILE *); int _rmtmp (void); extern __inline__ int feof (FILE *_s) { return (_s->_flags & _IOEOF ? 1 : 0); } extern __inline__ int ferror (FILE *_s) { return (_s->_flags & _IOERR ? 1 : 0); } extern __inline__ int getchar (void) { return getc (stdin); } extern __inline__ int putchar (int _c) { return putc (_c, stdout); } #if !defined (__STRICT_ANSI__) && !defined (_POSIX_SOURCE) || defined(__USE_EMX) char *cuserid (char *); int fcloseall (void); int fgetchar (void); int flushall (void); int fputchar (int); #endif #if (!defined (__STRICT_ANSI__) && !defined (_POSIX_SOURCE)) || defined (_WITH_UNDERSCORE) || defined(__USE_EMX) int _fcloseall (void); FILE *_fdopen (int, __const__ char *); int _fgetchar (void); int _flushall (void); int _fputchar (int); int _fseek_hdr (FILE *); int _fsetmode (FILE *, __const__ char *); FILE *_fsopen (__const__ char *, __const__ char *, int); int _getw (FILE *); char *_mfclose (FILE *); FILE *_mfopen (char *, __const__ char *, size_t, int); int _pclose (FILE *); FILE *_popen (__const__ char *, __const__ char *); int _putw (int, FILE *); void _setbuffer (FILE *, char *, int); int _snprintf (char *, size_t, __const__ char *, ...); char *_tempnam (__const__ char *, __const__ char *); int _vsnprintf (char *, size_t, __const__ char *, __va_list); #endif /* bird: end of EMX isms. */ /* bird: GNU extensions */ #ifdef __USE_GNU #if !defined(_SSIZE_T_DECLARED) && !defined(_SSIZE_T) /* bird: emx */ typedef __ssize_t ssize_t; #define _SSIZE_T_DECLARED #define _SSIZE_T /* bird: emx */ #endif ssize_t getline(char **, size_t *, FILE *); ssize_t getdelim(char **, size_t *, int, FILE *); #endif /* bird: GNU extensions - end */ __END_DECLS #endif /* !_STDIO_H_ */