/* $OpenBSD: ext.h,v 1.8 2003/03/11 04:42:25 david Exp $ */ /* $NetBSD: ext.h,v 1.5 1997/10/17 11:19:48 ws Exp $ */ /* * Copyright (C) 1995, 1996, 1997 Wolfgang Solfrank * Copyright (c) 1995 Martin Husemann * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Martin Husemann * and Wolfgang Solfrank. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef EXT_H #define EXT_H #include <sys/types.h> #include "dosfs.h" #include "fsutil.h" #define LOSTDIR "LOST.DIR" /* * Options: */ extern int alwaysno; /* assume "no" for all questions */ extern int alwaysyes; /* assume "yes" for all questions */ extern int preen; /* we are preening */ extern int rdonly; /* device is opened read only (supersedes above) */ extern char *fname; /* filesystem currently checked */ extern struct dosDirEntry *rootDir; /* * function declarations */ int ask(int, const char *, ...); /* * Check filesystem given as arg */ int checkfilesys(const char *); /* * Return values of various functions */ #define FSOK 0 /* Check was OK */ #define FSBOOTMOD 1 /* Boot block was modified */ #define FSDIRMOD 2 /* Some directory was modified */ #define FSFATMOD 4 /* The FAT was modified */ #define FSERROR 8 /* Some unrecovered error remains */ #define FSFATAL 16 /* Some unrecoverable error occurred */ /* * read a boot block in a machine independend fashion and translate * it into our struct bootblock. */ int readboot(int, struct bootblock *); /* * Correct the FSInfo block. */ int writefsinfo(int, struct bootblock *); /* * Read one of the FAT copies and return a pointer to the new * allocated array holding our description of it. */ int readfat(int, struct bootblock *, int, struct fatEntry **); /* * Check two FAT copies for consistency and merge changes into the * first if necessary. */ int comparefat(struct bootblock *, struct fatEntry *, struct fatEntry *, int); /* * Check a FAT */ int checkfat(struct bootblock *, struct fatEntry *); /* * Write back FAT entries */ int writefat(int, struct bootblock *, struct fatEntry *); /* * Read a directory */ int resetDosDirSection(struct bootblock *, struct fatEntry *); void finishDosDirSection(void); int handleDirTree(int, struct bootblock *, struct fatEntry *); /* * Cross-check routines run after everything is completely in memory */ /* * Check for lost cluster chains */ int checklost(int, struct bootblock *, struct fatEntry *); /* * Try to reconnect a lost cluster chain */ int reconnect(int, struct bootblock *, struct fatEntry *, cl_t); void finishlf(void); /* * Small helper functions */ /* * Return the type of a reserved cluster as text */ char *rsrvdcltype(cl_t); /* * Clear a cluster chain in a FAT */ void clearchain(struct bootblock *, struct fatEntry *, cl_t); #endif