usr/src/cmd/fs.d/pcfs/fsck/pcfs_common.h

   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, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2011 Gary Mills
  24  *
  25  * Copyright (c) 1999 by Sun Microsystems, Inc.
  26  * All rights reserved.
  27  */
  28
  29 #ifndef _PCFS_COMMON_H
  30 #define _PCFS_COMMON_H
  31
  32 /*
  33  * Common routines for the pcfs user-level utilities
  34  */
  35
  36 #ifdef __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 #include <sys/isa_defs.h>
  41 #include <sys/types.h>
  42 #include <sys/stat.h>
  43 #include <sys/sysmacros.h>
  44 #include "pcfs_bpb.h"
  45
  46 #define IN_RANGE(n, x, y) (((n) >= (x)) && ((n) <= (y)))
  47
  48 /*
  49  *  A macro implementing a ceiling function for integer divides.
  50  */
  51 #define idivceil(dvend, dvsor) \
  52         ((dvend)/(dvsor) + (((dvend)%(dvsor) == 0) ? 0 : 1))
  53
  54 /*
  55  * These defines should move into a kernel header file eventually
  56  * and pcfs_mount may want to refuse to mount FAT32's that aren't "clean"
  57  *
  58  *      If Windows shuts down properly it sets the fourth bit of the 8th
  59  *      and final reserved byte at the start of the FAT.
  60  */
  61 #define WIN_SHUTDOWN_STATUS_BYTE        7
  62 #define WIN_SHUTDOWN_BIT_MASK           0x8
  63
  64 /*
  65  *  Define some special logical drives we use.
  66  */
  67 #define BOOT_PARTITION_DRIVE    99
  68 #define PRIMARY_DOS_DRIVE       1
  69
  70 /*
  71  * Function prototypes
  72  */
  73 extern off64_t findPartitionOffset(int fd, char *ldrive);
  74 extern char *stat_actual_disk(char *diskname, struct stat *info, char **suffix);
  75 extern void header_for_dump(void);
  76 extern void store_16_bits(uchar_t **bp, uint32_t v);
  77 extern void store_32_bits(uchar_t **bp, uint32_t v);
  78 extern void read_16_bits(uchar_t *bp, uint32_t *value);
  79 extern void read_32_bits(uchar_t *bp, uint32_t *value);
  80 extern void missing_arg(char *option);
  81 extern void dump_bytes(uchar_t *b, int n);
  82 extern void bad_arg(char *option);
  83 extern void usage(void);
  84 extern int  yes(void);
  85
  86 /*
  87  *      The assumption here is that _BIG_ENDIAN implies sparc, and
  88  *      so in addition to swapping bytes we also have to construct
  89  *      packed structures by hand to avoid bus errors due to improperly
  90  *      aligned pointers.
  91  */
  92 #ifdef _BIG_ENDIAN
  93 extern void swap_pack_grab32bpb(bpb_t *wbpb, struct _boot_sector *bsp);
  94 extern void swap_pack_grabbpb(bpb_t *wbpb, struct _boot_sector *bsp);
  95 #endif  /* _BIG_ENDIAN */
  96
  97 #ifdef __cplusplus
  98 }
  99 #endif
 100
 101 #endif /* _PCFS_COMMON_H */