[unix-history] / include / stdio.h

/*-
 * Copyright (c) 1990 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	5.17 (Berkeley) 6/3/91
 */

#ifndef	_STDIO_H_
#define	_STDIO_H_

#include <sys/cdefs.h>

#include <machine/ansi.h>
#ifdef	_SIZE_T_
typedef	_SIZE_T_	size_t;
#undef	_SIZE_T_
#endif

#ifndef NULL
#define	NULL	0
#endif

typedef long fpos_t;		/* Must match off_t <sys/types.h> */

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

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

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

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

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

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

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

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

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

__BEGIN_DECLS
extern FILE __sF[];
__END_DECLS

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

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

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

/*
 * FOPEN_MAX is a minimum maximum, and should be the number of descriptors
 * that the kernel can provide without allocation of a resource that can
 * fail without the process sleeping.  Do not use this for anything.
 */
#define	FOPEN_MAX	20	/* must be <= OPEN_MAX <sys/syslimits.h> */
#define	FILENAME_MAX	1024	/* must be <= PATH_MAX <sys/syslimits.h> */

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

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

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

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

/*
 * Functions defined in POSIX 1003.1.
 */
#ifndef _ANSI_SOURCE
#define	L_cuserid	9	/* size for cuserid(); UT_NAMESIZE + 1 */
#define	L_ctermid	1024	/* size for ctermid(); PATH_MAX */

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

/*
 * Routines that are purely local.
 */
#if !defined (_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
__BEGIN_DECLS
char	*fgetline __P((FILE *, size_t *));
int	 fpurge __P((FILE *));
int	 getw __P((FILE *));
int	 pclose __P((FILE *));
FILE	*popen __P((const char *, const char *));
int	 putw __P((int, FILE *));
void	 setbuffer __P((FILE *, char *, int));
int	 setlinebuf __P((FILE *));
char	*tempnam __P((const char *, const char *));
int	 snprintf __P((char *, size_t, const char *, ...));
int	 vsnprintf __P((char *, size_t, const char *, _VA_LIST_));
int	 vscanf __P((const char *, _VA_LIST_));
int	 vsscanf __P((const char *, const char *, _VA_LIST_));
__END_DECLS

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

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

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

/*
 * The __sfoo macros are here so that we can 
 * define function versions in the C library.
 */
#define	__sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
#if defined(__GNUC__)
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)

#define	feof(p)		__sfeof(p)
#define	ferror(p)	__sferror(p)
#define	clearerr(p)	__sclearerr(p)

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

#ifndef lint
#define	getc(fp)	__sgetc(fp)
#define putc(x, fp)	__sputc(x, fp)
#endif /* lint */

#define	getchar()	getc(stdin)
#define	putchar(x)	putc(x, stdout)
#endif /* _STDIO_H_ */
Commit	Line	Data
15637ed4 RG	1	/*-
	2	* Copyright (c) 1990 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Chris Torek.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	* 1. Redistributions of source code must retain the above copyright
	12	* notice, this list of conditions and the following disclaimer.
	13	* 2. Redistributions in binary form must reproduce the above copyright
	14	* notice, this list of conditions and the following disclaimer in the
	15	* documentation and/or other materials provided with the distribution.
	16	* 3. All advertising materials mentioning features or use of this software
	17	* must display the following acknowledgement:
	18	* This product includes software developed by the University of
	19	* California, Berkeley and its contributors.
	20	* 4. Neither the name of the University nor the names of its contributors
	21	* may be used to endorse or promote products derived from this software
	22	* without specific prior written permission.
	23	*
	24	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	25	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	26	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	27	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	28	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	29	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	30	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	31	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	32	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	33	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	34	* SUCH DAMAGE.
	35	*
	36	* @(#)stdio.h 5.17 (Berkeley) 6/3/91
	37	*/
	38
	39	#ifndef _STDIO_H_
	40	#define _STDIO_H_
	41
	42	#include <sys/cdefs.h>
	43
	44	#include <machine/ansi.h>
	45	#ifdef _SIZE_T_
	46	typedef _SIZE_T_ size_t;
	47	#undef _SIZE_T_
	48	#endif
	49
	50	#ifndef NULL
	51	#define NULL 0
	52	#endif
	53
	54	typedef long fpos_t; /* Must match off_t <sys/types.h> */
	55
	56	#define _FSTDIO /* Define for new stdio with functions. */
	57
	58	/*
	59	* NB: to fit things in six character monocase externals, the stdio
	60	* code uses the prefix `__s' for stdio objects, typically followed
	61	* by a three-character attempt at a mnemonic.
	62	*/
	63
	64	/* stdio buffers */
65	struct __sbuf {
66	unsigned char *_base;
67	int _size;
68	};
69
70	/*
71	* stdio state variables.
72	*
73	* The following always hold:
74	*
75	* if (_flags&(__SLBF\|__SWR)) == (__SLBF\|__SWR),
76	* _lbfsize is -_bf._size, else _lbfsize is 0
77	* if _flags&__SRD, _w is 0
78	* if _flags&__SWR, _r is 0
79	*
80	* This ensures that the getc and putc macros (or inline functions) never
81	* try to write or read from a file that is in `read' or `write' mode.
82	* (Moreover, they can, and do, automatically switch from read mode to
83	* write mode, and back, on "r+" and "w+" files.)
84	*
85	* _lbfsize is used only to make the inline line-buffered output stream
86	* code as compact as possible.
87	*
88	* _ub, _up, and _ur are used when ungetc() pushes back more characters
89	* than fit in the current _bf, or when ungetc() pushes back a character
90	* that does not match the previous one in _bf. When this happens,
91	* _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
92	* _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
93	*/
94	typedef struct __sFILE {
95	unsigned char _p; / current position in (some) buffer */
96	int _r; /* read space left for getc() */
97	int _w; /* write space left for putc() */
98	short _flags; /* flags, below; this FILE is free if 0 */
99	short _file; /* fileno, if Unix descriptor, else -1 */
100	struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
101	int _lbfsize; /* 0 or -_bf._size, for inline putc */
102
103	/* operations */
104	void _cookie; / cookie passed to io functions */
105	int (_close) __P((void ));
106	int (_read) __P((void , char *, int));
107	fpos_t (_seek) __P((void , fpos_t, int));
108	int (_write) __P((void , const char *, int));
109
110	/* separate buffer for long sequences of ungetc() */
111	struct __sbuf _ub; /* ungetc buffer */
112	unsigned char _up; / saved _p when _p is doing ungetc data */
113	int _ur; /* saved _r when _r is counting ungetc data */
114
115	/* tricks to meet minimum requirements even when malloc() fails */
116	unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
117	unsigned char _nbuf[1]; /* guarantee a getc() buffer */
118
119	/* separate buffer for fgetline() when line crosses buffer boundary */
120	struct __sbuf _lb; /* buffer for fgetline() */
121
122	/* Unix stdio files get aligned to block boundaries on fseek() */
123	int _blksize; /* stat.st_blksize (may be != _bf._size) */
124	int _offset; /* current lseek offset */
125	} FILE;
126
127	__BEGIN_DECLS
128	extern FILE __sF[];
129	__END_DECLS
130
131	#define __SLBF 0x0001 /* line buffered */
132	#define __SNBF 0x0002 /* unbuffered */
133	#define __SRD 0x0004 /* OK to read */
134	#define __SWR 0x0008 /* OK to write */
135	/* RD and WR are never simultaneously asserted */
136	#define __SRW 0x0010 /* open for reading & writing */
137	#define __SEOF 0x0020 /* found EOF */
138	#define __SERR 0x0040 /* found error */
139	#define __SMBF 0x0080 /* _buf is from malloc */
140	#define __SAPP 0x0100 /* fdopen()ed in append mode */
141	#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
142	#define __SOPT 0x0400 /* do fseek() optimisation */
143	#define __SNPT 0x0800 /* do not do fseek() optimisation */
144	#define __SOFF 0x1000 /* set iff _offset is in fact correct */
145	#define __SMOD 0x2000 /* true => fgetline modified _p text */
146
147	/*
148	* The following three definitions are for ANSI C, which took them
149	* from System V, which brilliantly took internal interface macros and
150	* made them official arguments to setvbuf(), without renaming them.
151	* Hence, these ugly _IOxxx names are supposed to appear in user code.
152	*
153	* Although numbered as their counterparts above, the implementation
154	* does not rely on this.
155	*/
156	#define _IOFBF 0 /* setvbuf should set fully buffered */
157	#define _IOLBF 1 /* setvbuf should set line buffered */
158	#define _IONBF 2 /* setvbuf should set unbuffered */
159
160	#define BUFSIZ 1024 /* size of buffer used by setbuf */
161	#define EOF (-1)
162
163	/*
164	* FOPEN_MAX is a minimum maximum, and should be the number of descriptors
165	* that the kernel can provide without allocation of a resource that can
166	* fail without the process sleeping. Do not use this for anything.
167	*/
168	#define FOPEN_MAX 20 /* must be <= OPEN_MAX <sys/syslimits.h> */
169	#define FILENAME_MAX 1024 /* must be <= PATH_MAX <sys/syslimits.h> */
170
171	/* System V/ANSI C; this is the wrong way to do this, do not use these. */
172	#ifndef _ANSI_SOURCE
173	#define P_tmpdir "/var/tmp/"
174	#endif
175	#define L_tmpnam 1024 /* XXX must be == PATH_MAX */
176	#define TMP_MAX 308915776
177
178	#ifndef SEEK_SET
179	#define SEEK_SET 0 /* set file offset to offset */
180	#endif
181	#ifndef SEEK_CUR
182	#define SEEK_CUR 1 /* set file offset to current plus offset */
183	#endif
184	#ifndef SEEK_END
185	#define SEEK_END 2 /* set file offset to EOF plus offset */
186	#endif
187
188	#define stdin (&__sF[0])
189	#define stdout (&__sF[1])
190	#define stderr (&__sF[2])
191
192	/*
193	* Functions defined in ANSI C standard.
194	*/
195	__BEGIN_DECLS
196	void clearerr __P((FILE *));
197	int fclose __P((FILE *));
198	int feof __P((FILE *));
199	int ferror __P((FILE *));
200	int fflush __P((FILE *));
201	int fgetc __P((FILE *));
202	int fgetpos __P((FILE , fpos_t ));
203	char fgets __P((char , size_t, FILE *));
204	FILE fopen __P((const char , const char *));
205	int fprintf __P((FILE , const char , ...));
206	int fputc __P((int, FILE *));
207	int fputs __P((const char , FILE ));
208	int fread __P((void , size_t, size_t, FILE ));
209	FILE freopen __P((const char , const char , FILE ));
210	int fscanf __P((FILE , const char , ...));
211	int fseek __P((FILE *, long, int));
212	int fsetpos __P((FILE , const fpos_t ));
213	long ftell __P((const FILE *));
214	int fwrite __P((const void , size_t, size_t, FILE ));
215	int getc __P((FILE *));
216	int getchar __P((void));
217	char gets __P((char ));
218	#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
219	extern int sys_nerr; /* perror(3) external variables */
220	extern char *sys_errlist[];
221	#endif
222	void perror __P((const char *));
223	int printf __P((const char *, ...));
224	int putc __P((int, FILE *));
225	int putchar __P((int));
226	int puts __P((const char *));
227	int remove __P((const char *));
228	int rename __P((const char , const char ));
229	void rewind __P((FILE *));
230	int scanf __P((const char *, ...));
231	void setbuf __P((FILE , char ));
232	int setvbuf __P((FILE , char , int, size_t));
233	int sprintf __P((char , const char , ...));
9beb3781	234	int sscanf __P((const char , const char , ...));
15637ed4 RG	235	FILE *tmpfile __P((void));
	236	char tmpnam __P((char ));
	237	int ungetc __P((int, FILE *));
	238	int vfprintf __P((FILE , const char , _VA_LIST_));
	239	int vprintf __P((const char *, _VA_LIST_));
	240	int vsprintf __P((char , const char , _VA_LIST_));
	241	__END_DECLS
	242
	243	/*
	244	* Functions defined in POSIX 1003.1.
	245	*/
	246	#ifndef _ANSI_SOURCE
	247	#define L_cuserid 9 /* size for cuserid(); UT_NAMESIZE + 1 */
	248	#define L_ctermid 1024 /* size for ctermid(); PATH_MAX */
	249
	250	__BEGIN_DECLS
	251	char ctermid __P((char ));
	252	FILE fdopen __P((int, const char ));
	253	int fileno __P((FILE *));
	254	__END_DECLS
	255	#endif /* not ANSI */
	256
	257	/*
	258	* Routines that are purely local.
	259	*/
	260	#if !defined (_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
	261	__BEGIN_DECLS
	262	char fgetline __P((FILE , size_t *));
	263	int fpurge __P((FILE *));
	264	int getw __P((FILE *));
	265	int pclose __P((FILE *));
	266	FILE popen __P((const char , const char *));
	267	int putw __P((int, FILE *));
	268	void setbuffer __P((FILE , char , int));
	269	int setlinebuf __P((FILE *));
	270	char tempnam __P((const char , const char *));
	271	int snprintf __P((char , size_t, const char , ...));
	272	int vsnprintf __P((char , size_t, const char , _VA_LIST_));
	273	int vscanf __P((const char *, _VA_LIST_));
	274	int vsscanf __P((const char , const char , _VA_LIST_));
	275	__END_DECLS
	276
	277	/*
	278	* This is a #define because the function is used internally and
	279	* (unlike vfscanf) the name __svfscanf is guaranteed not to collide
	280	* with a user function when _ANSI_SOURCE or _POSIX_SOURCE is defined.
	281	*/
	282	#define vfscanf __svfscanf
	283
	284	/*
	285	* Stdio function-access interface.
	286	*/
	287	__BEGIN_DECLS
	288	FILE funopen __P((const void ,
	289	int ()(void , char *, int),
	290	int ()(void , const char *, int),
	291	fpos_t ()(void , fpos_t, int),
	292	int ()(void )));
	293	__END_DECLS
	294	#define fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
	295	#define fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
	296	#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
	297
	298	/*
299	* Functions internal to the implementation.
300	*/
301	__BEGIN_DECLS
302	int __srget __P((FILE *));
303	int __svfscanf __P((FILE , const char , _VA_LIST_));
304	int __swbuf __P((int, FILE *));
305	__END_DECLS
306
307	/*
308	* The __sfoo macros are here so that we can
309	* define function versions in the C library.
310	*/
311	#define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
45d7ac50 NW	312	#if defined(__GNUC__)
45d7ac50 NW	313	static __inline__ int __sputc(int _c, FILE *_p) {
15637ed4 RG	314	if (--_p->_w >= 0 \|\| (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
	315	return (*_p->_p++ = _c);
	316	else
	317	return (__swbuf(_c, _p));
	318	}
	319	#else
	320	/*
	321	* This has been tuned to generate reasonable code on the vax using pcc.
	322	*/
	323	#define __sputc(c, p) \
	324	(--(p)->_w < 0 ? \
	325	(p)->_w >= (p)->_lbfsize ? \
	326	((p)->_p = (c)), (p)->_p != '\n' ? \
	327	(int)*(p)->_p++ : \
	328	__swbuf('\n', p) : \
	329	__swbuf((int)(c), p) : \
	330	((p)->_p = (c), (int)(p)->_p++))
	331	#endif
	332
	333	#define __sfeof(p) (((p)->_flags & __SEOF) != 0)
	334	#define __sferror(p) (((p)->_flags & __SERR) != 0)
	335	#define __sclearerr(p) ((void)((p)->_flags &= ~(__SERR\|__SEOF)))
	336	#define __sfileno(p) ((p)->_file)
	337
	338	#define feof(p) __sfeof(p)
	339	#define ferror(p) __sferror(p)
	340	#define clearerr(p) __sclearerr(p)
	341
	342	#ifndef _ANSI_SOURCE
	343	#define fileno(p) __sfileno(p)
	344	#endif
	345
	346	#ifndef lint
	347	#define getc(fp) __sgetc(fp)
	348	#define putc(x, fp) __sputc(x, fp)
	349	#endif /* lint */
	350
	351	#define getchar() getc(stdin)
	352	#define putchar(x) putc(x, stdout)
	353	#endif /* _STDIO_H_ */