10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 51846Scraigm * Common Development and Distribution License (the "License"). 61846Scraigm * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 211846Scraigm 220Sstevel@tonic-gate /* 231846Scraigm * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 241846Scraigm * Use is subject to license terms. 250Sstevel@tonic-gate */ 260Sstevel@tonic-gate 270Sstevel@tonic-gate /* 280Sstevel@tonic-gate * Extensions to the stdio package 290Sstevel@tonic-gate */ 300Sstevel@tonic-gate 310Sstevel@tonic-gate #ifndef _STDIO_EXT_H 320Sstevel@tonic-gate #define _STDIO_EXT_H 330Sstevel@tonic-gate 340Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 350Sstevel@tonic-gate 360Sstevel@tonic-gate #include <stdio.h> 370Sstevel@tonic-gate 380Sstevel@tonic-gate #ifdef __cplusplus 390Sstevel@tonic-gate extern "C" { 400Sstevel@tonic-gate #endif 410Sstevel@tonic-gate 420Sstevel@tonic-gate /* 430Sstevel@tonic-gate * Even though the contents of the stdio FILE structure have always been 440Sstevel@tonic-gate * private to the stdio implementation, over the years some programs have 450Sstevel@tonic-gate * needed to get information about a stdio stream that was not accessible 460Sstevel@tonic-gate * through a supported interface. These programs have resorted to accessing 470Sstevel@tonic-gate * fields of the FILE structure directly, rendering them possibly non-portable 480Sstevel@tonic-gate * to new implementations of stdio, or more likely, preventing enhancements 490Sstevel@tonic-gate * to stdio because those programs will break. 500Sstevel@tonic-gate * 510Sstevel@tonic-gate * In the 64-bit world, the FILE structure is opaque. The routines here 520Sstevel@tonic-gate * are provided as a way to get the information that used to be retrieved 530Sstevel@tonic-gate * directly from the FILE structure. They are based on the needs of 540Sstevel@tonic-gate * existing programs (such as 'mh' and 'emacs'), so they may be extended 550Sstevel@tonic-gate * as other programs are ported. Though they may still be non-portable to 560Sstevel@tonic-gate * other operating systems, they will work from each Solaris release to 570Sstevel@tonic-gate * the next. More portable interfaces are being developed. 580Sstevel@tonic-gate */ 590Sstevel@tonic-gate 600Sstevel@tonic-gate #define FSETLOCKING_QUERY 0 610Sstevel@tonic-gate #define FSETLOCKING_INTERNAL 1 620Sstevel@tonic-gate #define FSETLOCKING_BYCALLER 2 630Sstevel@tonic-gate 640Sstevel@tonic-gate extern size_t __fbufsize(FILE *stream); 650Sstevel@tonic-gate extern int __freading(FILE *stream); 660Sstevel@tonic-gate extern int __fwriting(FILE *stream); 670Sstevel@tonic-gate extern int __freadable(FILE *stream); 680Sstevel@tonic-gate extern int __fwritable(FILE *stream); 690Sstevel@tonic-gate extern int __flbf(FILE *stream); 700Sstevel@tonic-gate extern void __fpurge(FILE *stream); 710Sstevel@tonic-gate extern size_t __fpending(FILE *stream); 720Sstevel@tonic-gate extern void _flushlbf(void); 730Sstevel@tonic-gate extern int __fsetlocking(FILE *stream, int type); 740Sstevel@tonic-gate 751846Scraigm /* 761846Scraigm * Extended FILE enabling function. 771846Scraigm */ 781846Scraigm #if defined(_LP64) && !defined(__lint) 79*1860Scraigm #define enable_extended_FILE_stdio(fd, act) (0) 801846Scraigm #else 811846Scraigm extern int enable_extended_FILE_stdio(int, int); 821846Scraigm #endif 831846Scraigm 840Sstevel@tonic-gate #ifdef __cplusplus 850Sstevel@tonic-gate } 860Sstevel@tonic-gate #endif 870Sstevel@tonic-gate 880Sstevel@tonic-gate #endif /* _STDIO_EXT_H */ 89