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/*
* efs_dir.h
*
* Copyright (c) 1999 Al Smith
*/
#ifndef __EFS_DIR_H__
#define __EFS_DIR_H__
#define EFS_DIRBSIZE_BITS EFS_BLOCKSIZE_BITS
#define EFS_DIRBSIZE (1 << EFS_DIRBSIZE_BITS)
struct efs_dentry {
__be32 inode;
unsigned char namelen;
char name[3];
};
#define EFS_DENTSIZE (sizeof(struct efs_dentry) - 3 + 1)
#define EFS_MAXNAMELEN ((1 << (sizeof(char) * 8)) - 1)
#define EFS_DIRBLK_HEADERSIZE 4
#define EFS_DIRBLK_MAGIC 0xbeef /* moo */
struct efs_dir {
__be16 magic;
unsigned char firstused;
unsigned char slots;
unsigned char space[EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE];
};
#define EFS_MAXENTS \
((EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE) / \
(EFS_DENTSIZE + sizeof(char)))
#define EFS_SLOTAT(dir, slot) EFS_REALOFF((dir)->space[slot])
#define EFS_REALOFF(offset) ((offset << 1))
#endif /* __EFS_DIR_H__ */