sfio_s.h revision 3e14f97f673e8a630f076077de35afdd43dc1587
1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2010 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                  Common Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*            http://www.opensource.org/licenses/cpl1.0.txt             *
11*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#ifndef _SFIO_S_H
23#define _SFIO_S_H	1
24
25/*
26 * sfio file structure used by sfio and the stdio source compatibility library
27 */
28
29#if !defined(_SFHDR_H) && defined(_SFIO_H) && SFIO_VERSION < 20020214L
30#define	_data		data
31#define	_endb		endb
32#define	_next		next
33#endif
34
35struct _sfio_s
36{	unsigned char*	_next;	/* next position to read/write from	*/
37	unsigned char*	_endw;	/* end of write buffer			*/
38	unsigned char*	_endr;	/* end of read buffer			*/
39	unsigned char*	_endb;	/* end of buffer			*/
40	struct _sfio_s*	_push;	/* the stream that was pushed on	*/
41	unsigned short	_flags;	/* type of stream			*/
42	short		_file;	/* file descriptor			*/
43	unsigned char*	_data;	/* base of data buffer			*/
44	ssize_t		_size;	/* buffer size				*/
45	ssize_t		_val;	/* values or string lengths		*/
46#ifdef _SFIO_PRIVATE
47	_SFIO_PRIVATE
48#endif
49};
50
51#endif
52