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/*
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 * Copyright (c) 1987,1997, Prentice Hall
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 * All rights reserved.
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 *
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 * Redistribution and use of the MINIX operating system in source and
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 * binary forms, with or without modification, are permitted provided
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 * that the following conditions are met:
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/* This file contains the procedures for support directory operations. */
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above
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 *   copyright notice, this list of conditions and the following
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 *   disclaimer in the documentation and/or other materials provided
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/* Methods:
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 *   with the distribution.
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 * - Neither the name of Prentice Hall nor the names of the software
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 * do_sum:  return total number of directory entries
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 *   authors or contributors may be used to endorse or promote
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 *   products derived from this software without specific prior
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 *   written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS, AUTHORS, AND
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 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL PRENTICE HALL OR ANY AUTHORS OR CONTRIBUTORS BE
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup FileSystemImpl
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* @{
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*/
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/**
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 * @file    dir.c
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 * do_readentry: fill in the user buffer with directory entry specified by number
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 * @brief   This file contains the procedures for support directory operations.
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 */
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 */
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#include <stdio.h>
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#include <stdio.h>
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#include "fs.h"
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#include "fs.h"
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#include "dir.h"
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#include "dir.h"
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#include "block.h"
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#include "block.h"
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#include "inode.h"
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#include "inode.h"
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#include "param.h"
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#include "param.h"
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/**
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 * Return total number of directory entries
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 */
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int do_sum()
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int do_sum()
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{  
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{  
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    /* Perform dsum system call. */
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    /* Perform dsum system call. */
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    }
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    }
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    return dir_count;
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    return dir_count;
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}
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}
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/**
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 * Fill in the user buffer with directory entry specified by number
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 */    
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int do_readentry()
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int do_readentry()
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{
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{
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    /* Perform readentry(numb, buffer) system call. */
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    /* Perform readentry(numb, buffer) system call. */
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    return r;  
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    return r;  
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}
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}
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/**
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 * }
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 */
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