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