2007-02-18 00:21:28 +01:00
|
|
|
/************************************************************
|
|
|
|
* lib_fread.c
|
|
|
|
*
|
|
|
|
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
|
|
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
* are met:
|
|
|
|
*
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in
|
|
|
|
* the documentation and/or other materials provided with the
|
|
|
|
* distribution.
|
|
|
|
* 3. Neither the name Gregory Nutt nor the names of its contributors may be
|
|
|
|
* used to endorse or promote products derived from this software
|
|
|
|
* without specific prior written permission.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Compilation Switches
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Included Files
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include "lib_internal.h"
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Definitions
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Private Type Declarations
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Private Function Prototypes
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Global Constant Data
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Global Variables
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Private Constant Data
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* Private Variables
|
|
|
|
************************************************************/
|
|
|
|
/************************************************************
|
|
|
|
* Global Functions
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
/************************************************************
|
|
|
|
* fwrite
|
|
|
|
************************************************************/
|
|
|
|
|
|
|
|
size_t fread(void *ptr, size_t size, size_t n_items, FILE *stream)
|
|
|
|
{
|
|
|
|
size_t full_size = n_items * (size_t)size;
|
|
|
|
ssize_t bytes_read;
|
|
|
|
size_t items_read = 0;
|
|
|
|
|
|
|
|
/* Write the data into the stream buffer */
|
|
|
|
|
|
|
|
bytes_read = lib_fread(ptr, full_size, stream);
|
|
|
|
if (bytes_read > 0)
|
|
|
|
{
|
|
|
|
/* Return the number of full items read */
|
|
|
|
|
|
|
|
items_read = bytes_read / size;
|
|
|
|
}
|
|
|
|
return items_read;
|
|
|
|
}
|
2007-03-01 22:05:55 +01:00
|
|
|
|
|
|
|
|