linux/fs/befs/attribute.c

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/*
* linux/fs/befs/attribute.c
*
* Copyright (C) 2002 Will Dyson <will_dyson@pobox.com>
*
* Many thanks to Dominic Giampaolo, author of "Practical File System
* Design with the Be File System", for such a helpful book.
*
*/
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include "befs.h"
#include "endian.h"
#define SD_DATA(sd)\
(void*)((char*)sd + sizeof(*sd) + (sd->name_size - sizeof(sd->name)))
#define SD_NEXT(sd)\
(befs_small_data*)((char*)sd + sizeof(*sd) + (sd->name_size - \
sizeof(sd->name) + sd->data_size))
int
list_small_data(struct super_block *sb, befs_inode * inode, filldir_t filldir);
befs_small_data *
find_small_data(struct super_block *sb, befs_inode * inode,
const char *name);
int
read_small_data(struct super_block *sb, befs_inode * inode,
befs_small_data * sdata, void *buf, size_t bufsize);
/**
*
*
*
*
*
*/
befs_small_data *
find_small_data(struct super_block *sb, befs_inode * inode, const char *name)
{
befs_small_data *sdata = inode->small_data;
while (sdata->type != 0) {
if (strcmp(name, sdata->name) != 0) {
return sdata;
}
sdata = SD_NEXT(sdata);
}
return NULL;
}
/**
*
*
*
*
*
*/
int
read_small_data(struct super_block *sb, befs_inode * inode,
const char *name, void *buf, size_t bufsize)
{
befs_small_data *sdata;
sdata = find_small_data(sb, inode, name);
if (sdata == NULL)
return BEFS_ERR;
else if (sdata->data_size > bufsize)
return BEFS_ERR;
memcpy(buf, SD_DATA(sdata), sdata->data_size);
return BEFS_OK;
}
/**
*
*
*
*
*
*/
int
list_small_data(struct super_block *sb, befs_inode * inode)
{
}
/**
*
*
*
*
*
*/
int
list_attr(struct super_block *sb, befs_inode * inode)
{
}
/**
*
*
*
*
*
*/
int
read_attr(struct super_block *sb, befs_inode * inode)
{
}