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/*
* GRUB Utilities -- Utilities for GRUB Legacy, GRUB2 and GRUB for DOS
* Copyright (C) 2007 Bean (bean123@126.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __UTILS_H
#define __UTILS_H
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
#define MAX_DISKS 10
#define MAX_PARTS 30
#define FST_OTHER 0
#define FST_MBR 1
#define FST_FAT16 2
#define FST_FAT32 3
#define FST_NTFS 4
#define FST_EXT2 5
typedef struct {
unsigned char cur; // Current partition number
unsigned char nxt; // Next partition number
unsigned char dfs; // File system flag
unsigned char pad; // Padding
unsigned long bse; // Partition start address
unsigned long len; // Partition length
unsigned long ebs; // Base address for the extended partition
} __attribute__ ((packed)) xde_t;
static inline unsigned short
get16 (const void *buf_, unsigned offset)
{
unsigned char *buf = (unsigned char *) buf_ + offset;
return buf[0] | (buf[1] << 8);
}
static inline unsigned int
get32 (const void *buf_, unsigned offset)
{
unsigned char *buf = (unsigned char *) buf_ + offset;
return buf[0] | (buf[1] << 8) | (buf[1] << 16) | (buf[1] << 24);
}
static inline void
set16 (void *buf_, unsigned offset, unsigned short val)
{
unsigned char *buf = (unsigned char *) buf_ + offset;
buf[0] = val;
buf[1] = val >> 8;
}
static inline void
set32 (void *buf_, unsigned offset, unsigned int val)
{
unsigned char *buf = (unsigned char *) buf_ + offset;
buf[0] = val;
buf[1] = val >> 8;
buf[2] = val >> 16;
buf[3] = val >> 24;
}
extern int mbr_nhd, mbr_spt;
int go_sect(int,unsigned long);
int xd_enum(int,xde_t*);
int get_fstype(unsigned char*);
const char* fst2str(int);
const char* dfs2str(int);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif /* __UTILS_H */
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