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* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or
* See the License for the specific language governing permissions
* and limitations under the License.
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Extensions to the stdio package
#ifndef _STDIO_EXT_H
#define _STDIO_EXT_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
* Even though the contents of the stdio FILE structure have always been
* private to the stdio implementation, over the years some programs have
* needed to get information about a stdio stream that was not accessible
* through a supported interface. These programs have resorted to accessing
* fields of the FILE structure directly, rendering them possibly non-portable
* to new implementations of stdio, or more likely, preventing enhancements
* to stdio because those programs will break.
* In the 64-bit world, the FILE structure is opaque. The routines here
* are provided as a way to get the information that used to be retrieved
* directly from the FILE structure. They are based on the needs of
* existing programs (such as 'mh' and 'emacs'), so they may be extended
* as other programs are ported. Though they may still be non-portable to
* other operating systems, they will work from each Solaris release to
* the next. More portable interfaces are being developed.
extern size_t __fbufsize(FILE *stream);
extern int __freading(FILE *stream);
extern int __fwriting(FILE *stream);
extern int __freadable(FILE *stream);
extern int __fwritable(FILE *stream);
extern int __flbf(FILE *stream);
extern void __fpurge(FILE *stream);
extern size_t __fpending(FILE *stream);
extern void _flushlbf(void);
extern int __fsetlocking(FILE *stream, int type);
* Extended FILE enabling function.
#if defined(_LP64) && !defined(__lint)
#define enable_extended_FILE_stdio(fd, act) (0)
extern int enable_extended_FILE_stdio(int, int);
#ifdef __cplusplus
#endif /* _STDIO_EXT_H */