/*
    $Id: xa.h,v 1.1 2003/08/31 06:59:23 rocky Exp $

    Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
    Copyright (C) 2003 Rocky Bernstein <rocky@panix.com>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef __CDIO_XA_H__
#define __CDIO_XA_H__

/* Public headers */
#include <cdio/types.h>
#include <cdio/util.h>
#include <cdio/iso9660.h>

/* Private headers */
#include "cdio_assert.h"
#include "bytesex.h"

/* XA attribute definitions */
#define XA_ATTR_U_READ         (1 << 0)
/* reserved */
#define XA_ATTR_U_EXEC         (1 << 2)
/* reserved */
#define XA_ATTR_G_READ         (1 << 4)
/* reserved */
#define XA_ATTR_G_EXEC         (1 << 6)
/* reserved */
#define XA_ATTR_O_READ         (1 << 8)
/* reserved */
#define XA_ATTR_O_EXEC         (1 << 10)

#define XA_ATTR_MODE2FORM1     (1 << 11)
#define XA_ATTR_MODE2FORM2     (1 << 12)
#define XA_ATTR_INTERLEAVED    (1 << 13)
#define XA_ATTR_CDDA           (1 << 14)
#define XA_ATTR_DIRECTORY      (1 << 15)

/* some aggregations */
#define XA_PERM_ALL_READ       (XA_ATTR_U_READ | XA_ATTR_G_READ | XA_ATTR_O_READ)
#define XA_PERM_ALL_EXEC       (XA_ATTR_U_EXEC | XA_ATTR_G_EXEC | XA_ATTR_O_EXEC)
#define XA_PERM_ALL_ALL        (XA_PERM_ALL_READ | XA_PERM_ALL_EXEC)

/* the struct */

PRAGMA_BEGIN_PACKED
typedef struct /* big endian!! */
{
  uint16_t user_id;       /* 0 */
  uint16_t group_id;      /* 0 */
  uint16_t attributes;    /* XA_ATTR_ */ 
  uint8_t  signature[2];  /* { 'X', 'A' } */
  uint8_t  filenum;       /* file number, see also XA subheader */
  uint8_t  reserved[5];   /* zero */
} GNUC_PACKED iso9660_xa_t;

PRAGMA_END_PACKED

struct iso9660_stat {
  enum { _STAT_FILE = 1, _STAT_DIR = 2 } type;
  lsn_t        lsn;     /* start logical sector number */
  uint32_t     size;    /* total size in bytes */
  uint32_t     secsize; /* number of sectors allocated */
  iso9660_xa_t xa;      /* XA attributes */
};

#define iso9660_xa_t_SIZEOF 14

static inline iso9660_xa_t *
iso9660_xa_new (void)
{
  return _cdio_malloc (sizeof (iso9660_xa_t));
}

static inline iso9660_xa_t *
iso9660_xa_init (iso9660_xa_t *_xa, uint16_t uid, uint16_t gid, uint16_t attr, 
	      uint8_t filenum)
{
  cdio_assert (_xa != NULL);
  
  
  _xa->user_id = uint16_to_be (uid);
  _xa->group_id = uint16_to_be (gid);
  _xa->attributes = uint16_to_be (attr);

  _xa->signature[0] = 'X';
  _xa->signature[1] = 'A';

  _xa->filenum = filenum;

  _xa->reserved[0] 
    = _xa->reserved[1] 
    = _xa->reserved[2] 
    = _xa->reserved[3] 
    = _xa->reserved[4] = 0x00;

  return _xa;
}

#endif /* __VCD_XA_H__ */