/*
 * $Id: boxheader_manager.c 44 2011-02-15 12:32:29Z kaori $
 *
 * Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
 * Copyright (c) 2002-2011, Professor Benoit Macq
 * Copyright (c) 2010-2011, Kaori Hagihara
 * All rights reserved.
 *
 * 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.
 *
 * 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.
 */

#include <stdlib.h>
#include <string.h>
#include <stdlib.h>
#include "boxheader_manager.h"

#ifdef SERVER
#include "fcgi_stdio.h"
#define logstream FCGI_stdout
#else
#define FCGI_stdout stdout
#define FCGI_stderr stderr
#define logstream stderr
#endif //SERVER


boxheader_param_t * gene_boxheader( int fd, Byte8_t offset)
{
  Byte8_t boxlen;
  Byte_t headlen;
  char *boxtype;
  boxheader_param_t *boxheader;

  boxlen = fetch_4bytebigendian( fd, offset);
  boxtype = (char *)fetch_bytes( fd, offset+4, 4);
  headlen = 8;
    
  if( boxlen == 1){ // read XLBox
    boxlen = fetch_8bytebigendian( fd, offset+8);
    headlen = 16;
  }
  boxheader = (boxheader_param_t *)malloc( sizeof( boxheader_param_t));
  boxheader->headlen = headlen;
  boxheader->length = boxlen;
  strncpy( boxheader->type, boxtype, 4);
  boxheader->next = NULL;
  
  free( boxtype);
  return boxheader;
}

boxheader_param_t * gene_childboxheader( box_param_t *superbox, Byte8_t offset)
{
  return gene_boxheader( superbox->fd, get_DBoxoff( superbox)+offset);
}

void print_boxheader( boxheader_param_t *boxheader)
{
  fprintf( logstream, "boxheader info:\n"
	   "\t type: %.4s\n"
	   "\t length:%lld %#llx\n", boxheader->type, boxheader->length, boxheader->length);
}