source: svn/newcon3bcm2_21bu/nexus/app/bapp_store.c

/***************************************************************
**
**  Broadcom Corp. Confidential
**  Copyright 1998-2000 Broadcom Corp.  All Rights Reserved.
**
**  THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED 
**  SOFTWARE LICENSE AGREEMENT  BETWEEN THE USER AND BROADCOM.  
**  YOU HAVE NO RIGHT TO USE OR EXPLOIT THIS MATERIAL EXCEPT 
**  SUBJECT TO THE TERMS OF SUCH AN AGREEMENT.
**
**  File:         fstore.c
**  Description:  Flash storage manager      
**
****************************************************************/
/* include files        */
#include <stdio.h>
#include "bapp_store.h"
#include "bapp_util.h"

static char* s_data = NULL;
bresult fstore_init(fstore_t *p_fs)
{
        return b_ok;
}
bresult fstore_update(fstore_t *p_fs, 
                                  fstore_data_type_t type,
                                  void *data,
                                  unsigned int length)
{
        FILE* fstore_file = fopen("fstore.dat","wb+");
        
        if (!fstore_file)
        {
                return berr_invalid_parameter;
        }
        fwrite(data,1,length,fstore_file);
        fclose(fstore_file);
        return b_ok;
}
bresult fstore_get(fstore_t *p_fs, 
                                fstore_data_type_t type, 
                                void **data,
                                unsigned int *length)
{
        long f_len;
        FILE* fstore_file = fopen("fstore.dat","wb+");
        
        if (!fstore_file)
        {
                return berr_invalid_parameter;
        }
        fseek(fstore_file,0,SEEK_END);
        f_len = ftell(fstore_file);
        fseek(fstore_file,0,SEEK_SET);

        if (f_len != *length)
        {
                if (s_data)
                {
                        bapp_util_free(s_data);
                }
                fclose(fstore_file);
                return berr_invalid_parameter;
        }
        if (!s_data)
        {
                s_data = (char*)bapp_util_malloc(f_len);
        }
        *data = s_data;

        fread(s_data,1,f_len,fstore_file);
        fclose(fstore_file);
        return b_ok;
}