1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*
28 * This is the header where the internal to libc definition of the FILE
29 * structure is defined. The exrernal defintion defines the FILE structure
30 * as an array of longs. This prevents customers from writing code that
31 * depends upon the implemnetation of stdio. The __fbufsize(3C) man page
32 * documents a set of routines that customers can use so that they do not
33 * need access to the FILE structure.
34 *
35 * When compiling libc this file MUST be included BEFORE <stdio.h>, and
36 * any other headers that themselves directly or indirectly include
37 * <stdio.h>. Failure to do so, will cause the compile of libc to fail,
38 * since the structure members will not be visible to the stdio routines.
39 */
40
41#ifndef	_FILE64_H
42#define	_FILE64_H
43
44#pragma ident	"%Z%%M%	%I%	%E% SMI"
45
46#include <synch.h>
47#include <stdio_tag.h>
48#include <wchar_impl.h>
49
50#ifdef	__cplusplus
51extern "C" {
52#endif
53
54#ifndef	_MBSTATE_T
55#define	_MBSTATE_T
56typedef __mbstate_t	mbstate_t;
57#endif
58
59#define	rmutex_t	mutex_t
60
61#ifdef	_LP64
62
63struct __FILE_TAG {
64	unsigned char	*_ptr;	/* next character from/to here in buffer */
65	unsigned char	*_base;	/* the buffer */
66	unsigned char	*_end;	/* the end of the buffer */
67	ssize_t		_cnt;	/* number of available characters in buffer */
68	int		_file;	/* UNIX System file descriptor */
69	unsigned int	_flag;	/* the state of the stream */
70	rmutex_t	_lock;	/* lock for this structure */
71	mbstate_t	_state;	/* mbstate_t */
72	char		__fill[32];	/* filler to bring size to 128 bytes */
73};
74
75#else
76
77/*
78 * Stuff missing from our 32-bit FILE struct.
79 */
80struct xFILEdata {
81	uintptr_t	_magic;	/* Check: magic number, must be first */
82	unsigned char	*_end;	/* the end of the buffer */
83	rmutex_t	_lock;	/* lock for this structure */
84	mbstate_t	_state;	/* mbstate_t */
85	int		_altfd;	/* alternate fd if > 255 */
86};
87
88#define	XFILEINITIALIZER	{ 0, NULL, RECURSIVEMUTEX, DEFAULTMBSTATE }
89
90#endif	/*	_LP64	*/
91
92#ifdef	__cplusplus
93}
94#endif
95
96#endif	/* _FILE64_H */
97