1 7c478bd9Sstevel@tonic-gate /* 2 7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3 7c478bd9Sstevel@tonic-gate * 4 7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5 a5f69788Scraigm * Common Development and Distribution License (the "License"). 6 a5f69788Scraigm * You may not use this file except in compliance with the License. 7 7c478bd9Sstevel@tonic-gate * 8 7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 10 7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 11 7c478bd9Sstevel@tonic-gate * and limitations under the License. 12 7c478bd9Sstevel@tonic-gate * 13 7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 14 7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 16 7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 17 7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 18 7c478bd9Sstevel@tonic-gate * 19 7c478bd9Sstevel@tonic-gate * CDDL HEADER END 20 7c478bd9Sstevel@tonic-gate */ 21 a5f69788Scraigm 22 7c478bd9Sstevel@tonic-gate /* 23 a5f69788Scraigm * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 a5f69788Scraigm * Use is subject to license terms. 25 7c478bd9Sstevel@tonic-gate */ 26 7c478bd9Sstevel@tonic-gate 27 7c478bd9Sstevel@tonic-gate /* 28 7c478bd9Sstevel@tonic-gate * Extensions to the stdio package 29 7c478bd9Sstevel@tonic-gate */ 30 7c478bd9Sstevel@tonic-gate 31 7c478bd9Sstevel@tonic-gate #ifndef _STDIO_EXT_H 32 7c478bd9Sstevel@tonic-gate #define _STDIO_EXT_H 33 7c478bd9Sstevel@tonic-gate 34 7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 35 7c478bd9Sstevel@tonic-gate 36 7c478bd9Sstevel@tonic-gate #include <stdio.h> 37 7c478bd9Sstevel@tonic-gate 38 7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 39 7c478bd9Sstevel@tonic-gate extern "C" { 40 7c478bd9Sstevel@tonic-gate #endif 41 7c478bd9Sstevel@tonic-gate 42 7c478bd9Sstevel@tonic-gate /* 43 7c478bd9Sstevel@tonic-gate * Even though the contents of the stdio FILE structure have always been 44 7c478bd9Sstevel@tonic-gate * private to the stdio implementation, over the years some programs have 45 7c478bd9Sstevel@tonic-gate * needed to get information about a stdio stream that was not accessible 46 7c478bd9Sstevel@tonic-gate * through a supported interface. These programs have resorted to accessing 47 7c478bd9Sstevel@tonic-gate * fields of the FILE structure directly, rendering them possibly non-portable 48 7c478bd9Sstevel@tonic-gate * to new implementations of stdio, or more likely, preventing enhancements 49 7c478bd9Sstevel@tonic-gate * to stdio because those programs will break. 50 7c478bd9Sstevel@tonic-gate * 51 7c478bd9Sstevel@tonic-gate * In the 64-bit world, the FILE structure is opaque. The routines here 52 7c478bd9Sstevel@tonic-gate * are provided as a way to get the information that used to be retrieved 53 7c478bd9Sstevel@tonic-gate * directly from the FILE structure. They are based on the needs of 54 7c478bd9Sstevel@tonic-gate * existing programs (such as 'mh' and 'emacs'), so they may be extended 55 7c478bd9Sstevel@tonic-gate * as other programs are ported. Though they may still be non-portable to 56 7c478bd9Sstevel@tonic-gate * other operating systems, they will work from each Solaris release to 57 7c478bd9Sstevel@tonic-gate * the next. More portable interfaces are being developed. 58 7c478bd9Sstevel@tonic-gate */ 59 7c478bd9Sstevel@tonic-gate 60 7c478bd9Sstevel@tonic-gate #define FSETLOCKING_QUERY 0 61 7c478bd9Sstevel@tonic-gate #define FSETLOCKING_INTERNAL 1 62 7c478bd9Sstevel@tonic-gate #define FSETLOCKING_BYCALLER 2 63 7c478bd9Sstevel@tonic-gate 64 7c478bd9Sstevel@tonic-gate extern size_t __fbufsize(FILE *stream); 65 7c478bd9Sstevel@tonic-gate extern int __freading(FILE *stream); 66 7c478bd9Sstevel@tonic-gate extern int __fwriting(FILE *stream); 67 7c478bd9Sstevel@tonic-gate extern int __freadable(FILE *stream); 68 7c478bd9Sstevel@tonic-gate extern int __fwritable(FILE *stream); 69 7c478bd9Sstevel@tonic-gate extern int __flbf(FILE *stream); 70 7c478bd9Sstevel@tonic-gate extern void __fpurge(FILE *stream); 71 7c478bd9Sstevel@tonic-gate extern size_t __fpending(FILE *stream); 72 7c478bd9Sstevel@tonic-gate extern void _flushlbf(void); 73 7c478bd9Sstevel@tonic-gate extern int __fsetlocking(FILE *stream, int type); 74 7c478bd9Sstevel@tonic-gate 75 a5f69788Scraigm /* 76 a5f69788Scraigm * Extended FILE enabling function. 77 a5f69788Scraigm */ 78 a5f69788Scraigm #if defined(_LP64) && !defined(__lint) 79 *31c168a2Scraigm #define enable_extended_FILE_stdio(fd, act) (0) 80 a5f69788Scraigm #else 81 a5f69788Scraigm extern int enable_extended_FILE_stdio(int, int); 82 a5f69788Scraigm #endif 83 a5f69788Scraigm 84 7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 85 7c478bd9Sstevel@tonic-gate } 86 7c478bd9Sstevel@tonic-gate #endif 87 7c478bd9Sstevel@tonic-gate 88 7c478bd9Sstevel@tonic-gate #endif /* _STDIO_EXT_H */ 89