libcdio-osx/include/cdio/cdio.h

/* -*- c -*-
    $Id: cdio.h,v 1.54 2004/06/27 15:29:21 rocky Exp $

    Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org>
    Copyright (C) 2003, 2004 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
*/

/** \file cdio.h 
 *  \brief  The top-level header for libcdio: the CD Input and Control library.
 */


#ifndef __CDIO_H__
#define __CDIO_H__

/** Application Interface or Protocol version number. If the public
 *  interface changes, we increase this number.
 */
#define CDIO_API_VERSION 1

#include <cdio/version.h>

#ifdef  HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef  HAVE_UNISTD_H
#include <unistd.h>
#endif

#include <cdio/types.h>
#include <cdio/sector.h>

/**! Flags specifying the category of device to open or is opened. */

#define CDIO_SRC_IS_DISK_IMAGE_MASK 0x0001 /**< Read source is a CD image. */
#define CDIO_SRC_IS_DEVICE_MASK     0x0002 /**< Read source is a CD device. */
#define CDIO_SRC_IS_SCSI_MASK       0x0004 /**< Read source SCSI device. */
#define CDIO_SRC_IS_NATIVE_MASK     0x0008

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

  /** This is an opaque structure. */
  typedef struct _CdIo CdIo; 

  /** The driver_id_t enumerations may be used to tag a specific driver
   * that is opened or is desired to be opened. Note that this is
   * different than what is available on a given host.
   *
   * Order is a little significant since the order is used in scans.
   * We have to start with DRIVER_UNKNOWN and devices should come before
   * disk-image readers. By putting something towards the top (a lower
   * enumeration number), in an iterative scan we prefer that to
   * something with a higher enumeration number.
   *
   * NOTE: IF YOU MODIFY ENUM MAKE SURE INITIALIZATION IN CDIO.C AGREES.
   *     
   */
  typedef enum  {
    DRIVER_UNKNOWN, 
    DRIVER_BSDI,    /**< BSDI driver */
    DRIVER_FREEBSD, /**< FreeBSD driver */
    DRIVER_LINUX,   /**< GNU/Linux Driver */
    DRIVER_SOLARIS, /**< Sun Solaris Driver */
    DRIVER_OSX,     /**< Apple OSX Driver */
    DRIVER_WIN32,   /**< Microsoft Windows Driver */
    DRIVER_CDRDAO,  /**< cdrdao format CD image. This is listed
		         before BINCUE, to make the code prefer cdrdao
		         over BINCUE when both exist. */
    DRIVER_BINCUE,  /**< BIN/CUE format CD image. This is listed before NRG, 
		         to make the code prefer BINCUE over NRG when both 
			 exist. */
    DRIVER_NRG,     /**< Nero NRG format CD image. */
    DRIVER_DEVICE   /**< Is really a set of the above; should come last */
  } driver_id_t;

/** Make sure what's listed for CDIO_MIN_DRIVER is the last
    enumeration in driver_id_t. Since we have a bogus (but useful) 0th
    entry above we don't have to add one.
*/
#define CDIO_MIN_DRIVER        DRIVER_BSDI
#define CDIO_MIN_DEVICE_DRIVER CDIO_MIN_DRIVER
#define CDIO_MAX_DRIVER        DRIVER_NRG
#define CDIO_MAX_DEVICE_DRIVER DRIVER_WIN32

  typedef enum  {
    TRACK_FORMAT_AUDIO,   /**< Audio track, e.g. CD-DA */
    TRACK_FORMAT_CDI,     /**< CD-i. How this is different from DATA below? */
    TRACK_FORMAT_XA,      /**< Mode2 of some sort */
    TRACK_FORMAT_DATA,    /**< Mode1 of some sort */
    TRACK_FORMAT_PSX,     /**< Playstation CD. Like audio but only 2336 bytes
			   *   of user data.
			   */
    TRACK_FORMAT_ERROR    /**< Dunno what is, or some other error. */
  } track_format_t;

  /*! Printable tags for track_format_t enumeration.  */
  extern const char *track_format2str[6];
  
  /*!
    Eject media in CD drive if there is a routine to do so. 

    @param obj the CD object to be acted upon.
    @return 0 if success and 1 for failure, and 2 if no routine.
    If the CD is ejected *obj is freed and obj set to NULL.
  */
  int cdio_eject_media (CdIo **obj);

  /*!
    Free any resources associated with obj. Call this when done using obj
    and using CD reading/control operations.

    @param obj the CD object to eliminated.
   */
  void cdio_destroy (CdIo *obj);

  /*!
    Free device list returned by cdio_get_devices or
    cdio_get_devices_with_cap.
    
    @param device_list list returned by cdio_get_devices or
    cdio_get_devices_with_cap

    @see cdio_get_devices, cdio_get_devices_with_cap

  */
  void cdio_free_device_list (char * device_list[]);

  /*!
    Get the value associatied with key. 

    @param obj the CD object queried
    @param key the key to retrieve
    @return the value associatd with "key" or NULL if obj is NULL
    or "key" does not exist.
  */
  const char * cdio_get_arg (const CdIo *obj,  const char key[]);

  /*!
    Get an array of device names in search_devices that have at
    least the capabilities listed by cap.  If search_devices is NULL,
    then we'll search all possible CD drives.  
    
    If "any" is set false then every capability listed in the extended
    portion of capabilities (i.e. not the basic filesystem) must be
    satisified. If "any" is set true, then if any of the capabilities
    matches, we call that a success.

    To find a CD-drive of any type, use the mask CDIO_FS_MATCH_ALL.

    @return the array of device names or NULL if we couldn't get a
    default device.  It is also possible to return a non NULL but
    after dereferencing the the value is NULL. This also means nothing
    was found.
  */
  char ** cdio_get_devices_with_cap (char* search_devices[],
				     cdio_fs_anal_t capabilities, bool any);

  /*! Return an array of device names. If you want a specific
    devices for a driver, give that device. If you want hardware
    devices, give DRIVER_DEVICE and if you want all possible devices,
    image drivers and hardware drivers give DRIVER_UNKNOWN.
    
    NULL is returned if we couldn't return a list of devices.

    In some situations of drivers or OS's we can't find a CD device if
    there is no media in it and it is possible for this routine to return
    NULL even though there may be a hardware CD-ROM.
  */
  char ** cdio_get_devices (driver_id_t driver);

  /*!
    Get the default CD device.
    if obj is NULL (we haven't initialized a specific device driver), 
    then find a suitable one and return the default device for that.
    
    @param obj the CD object queried
    @return a string containing the default CD device or NULL is
    if we couldn't get a default device.

    In some situations of drivers or OS's we can't find a CD device if
    there is no media in it and it is possible for this routine to return
    NULL even though there may be a hardware CD-ROM.
  */
  char * cdio_get_default_device (const CdIo *obj);

  /*!
    Get the what kind of device we've got.

    @param obj the CD object queried
    @return a list of device capabilities.

    In some situations of drivers or OS's we can't find a CD device if
    there is no media in it and it is possible for this routine to return
    NULL even though there may be a hardware CD-ROM.
  */
  cdio_drive_cap_t cdio_get_drive_cap (const CdIo *obj);

  /*!
    Get the drive capabilities for a specified device.

    @return a list of device capabilities.

    In some situations of drivers or OS's we can't find a CD device if
    there is no media in it and it is possible for this routine to return
    NULL even though there may be a hardware CD-ROM.
  */
  cdio_drive_cap_t cdio_get_drive_cap_dev (const char *device);

  /*!
    Get the media catalog number (MCN) from the CD.

    @return the media catalog number r NULL if there is none or we
    don't have the ability to get it.

    Note: string is malloc'd so caller has to free() the returned
    string when done with it.

  */
  char * cdio_get_mcn (const CdIo *obj);

  /*!
    Get a string containing the name of the driver in use.

    @return a string with driver name or NULL if CdIo is NULL (we
    haven't initialized a specific device.
  */
  const char * cdio_get_driver_name (const CdIo *obj);

  /*!
    Get the driver id. 
    if CdIo is NULL (we haven't initialized a specific device driver), 
    then return DRIVER_UNKNOWN.

    @return the driver id..
  */
  driver_id_t cdio_get_driver_id (const CdIo *obj);

  /*!
    Get the number of the first track. 

    @return the track number or CDIO_INVALID_TRACK 
    on error.
  */
  track_t cdio_get_first_track_num(const CdIo *obj);
  
  /*!
    Get the number of tracks on the CD.

    @return the number of tracks, or CDIO_INVALID_TRACK if there is
    an error.
  */
  track_t cdio_get_num_tracks (const CdIo *obj);
  
  /*!  
    Get the format (audio, mode2, mode1) of track. 
  */
  track_format_t cdio_get_track_format(const CdIo *obj, track_t i_track);
  
  /*!
    Return true if we have XA data (green, mode2 form1) or
    XA data (green, mode2 form2). That is track begins:
    sync - header - subheader
    12     4      -  8
    
    FIXME: there's gotta be a better design for this and get_track_format?
  */
  bool cdio_get_track_green(const CdIo *obj, track_t i_track);
    
  /*!  
    Get the starting LBA for track number
    i_track in obj.  Track numbers usually start at something 
    greater than 0, usually 1.

    The "leadout" track is specified either by
    using i_track LEADOUT_TRACK or the total tracks+1.

    @param obj object to get information from
    @param i_track  the track number we want the LSN for
    @return the starting LBA or CDIO_INVALID_LBA on error.
  */
  lba_t cdio_get_track_lba(const CdIo *obj, track_t i_track);
  
  /*!  
    Return the starting MSF (minutes/secs/frames) for track number
    i_track in obj.  Track numbers usually start at something 
    greater than 0, usually 1.

    The "leadout" track is specified either by
    using i_track LEADOUT_TRACK or the total tracks+1.

    @param obj object to get information from
    @param i_track  the track number we want the LSN for
    @return the starting LSN or CDIO_INVALID_LSN on error.
  */
  lsn_t cdio_get_track_lsn(const CdIo *obj, track_t i_track);
  
  /*!  
    Return the starting MSF (minutes/secs/frames) for track number
    i_track in obj.  Track numbers usually start at something 
    greater than 0, usually 1.

    The "leadout" track is specified either by
    using i_track LEADOUT_TRACK or the total tracks+1.
    
    @return true if things worked or false if there is no track entry.
  */
  bool cdio_get_track_msf(const CdIo *obj, track_t i_track, 
			  /*out*/ msf_t *msf);
  
  /*!  
    Get the number of sectors between this track an the next.  This
    includes any pregap sectors before the start of the next track.
    Track numbers usually start at something 
    greater than 0, usually 1.

    @return the number of sectors or 0 if there is an error.
  */
  unsigned int cdio_get_track_sec_count(const CdIo *obj, track_t i_track);

  /*!
    Reposition read offset
    Similar to (if not the same as) libc's lseek()

    @param obj object to get information from
    @param offset amount to seek
    @param whence  like corresponding parameter in libc's lseek, e.g. 
                   SEEK_SET or SEEK_END.
    @return (off_t) -1 on error. 
  */
  off_t cdio_lseek(const CdIo *obj, off_t offset, int whence);
    
  /*!
    Reads into buf the next size bytes.
    Similar to (if not the same as) libc's read()

    @return (ssize_t) -1 on error. 
  */
  ssize_t cdio_read(const CdIo *obj, void *buf, size_t size);
    
  /*!
    Read an audio sector

    @param obj object to read from
    @param buf place to read data into
    @param lsn sector to read

    @return 0 if no error, nonzero otherwise.
  */
  int cdio_read_audio_sector (const CdIo *obj, void *buf, lsn_t lsn);

  /*!
    Reads audio sectors

    @param obj object to read from
    @param buf place to read data into
    @param lsn sector to read
    @param i_sectors number of sectors to read

    @return 0 if no error, nonzero otherwise.
  */
  int cdio_read_audio_sectors (const CdIo *obj, void *buf, lsn_t lsn,
			       unsigned int i_sectors);

  /*!
    Reads a mode1 sector

    @param obj object to read from
    @param buf place to read data into
    @param lsn sector to read
    @param b_form2 true for reading mode1 form2 sectors or false for 
    mode1 form1 sectors.

    @return 0 if no error, nonzero otherwise.
  */
  int cdio_read_mode1_sector (const CdIo *obj, void *buf, lsn_t lsn, 
			      bool b_form2);
  
  /*!
    Reads mode1 sectors

    @param obj object to read from
    @param buf place to read data into
    @param lsn sector to read
    @param b_form2 true for reading mode1 form2 sectors or false for 
    mode1 form1 sectors.
    @param i_sectors number of sectors to read

    @return 0 if no error, nonzero otherwise.
  */
  int cdio_read_mode1_sectors (const CdIo *obj, void *buf, lsn_t lsn, 
			       bool b_form2, unsigned int i_sectors);
  
  /*!
    Reads a mode1 sector

    @param obj object to read from
    @param buf place to read data into
    @param lsn sector to read
    @param b_form2 true for reading mode1 form2 sectors or false for 
    mode1 form1 sectors.

    @return 0 if no error, nonzero otherwise.
  */
  int cdio_read_mode2_sector (const CdIo *obj, void *buf, lsn_t lsn, 
			      bool b_form2);
  
  /*!
    Reads mode2 sectors

    @param obj object to read from
    @param buf place to read data into
    @param lsn sector to read
    @param b_form2 true for reading mode1 form2 sectors or false for 
    mode1 form1 sectors.
    @param i_sectors number of sectors to read

    @return 0 if no error, nonzero otherwise.
  */
  int cdio_read_mode2_sectors (const CdIo *obj, void *buf, lsn_t lsn, 
			       bool b_form2, unsigned int i_sectors);
  
  /*!
    Set the arg "key" with "value" in "obj".

    @param obj the CD object to set
    @param key the key to set
    @param value the value to assocaiate with key
    @return 0 if no error was found, and nonzero otherwise.
  */
  int cdio_set_arg (CdIo *obj, const char key[], const char value[]);
  
  /*!
    Get the size of the CD in logical block address (LBA) units.

    @param obj the CD object queried
    @return the size
  */
  uint32_t cdio_stat_size (const CdIo *obj);
  
  /*!
    Initialize CD Reading and control routines. Should be called first.
  */
  bool cdio_init(void);
  
  /* True if xxx driver is available. where xxx=linux, solaris, nrg, ...
   */

  /*! True if BSDI driver is available. */
  bool cdio_have_bsdi    (void);

  /*! True if FreeBSD driver is available. */
  bool cdio_have_freebsd (void);

  /*! True if GNU/Linux driver is available. */
  bool cdio_have_linux   (void);

  /*! True if Sun Solaris driver is available. */
  bool cdio_have_solaris (void);

  /*! True if Apple OSX driver is available. */
  bool cdio_have_osx     (void);

  /*! True if Microsoft Windows driver is available. */
  bool cdio_have_win32   (void);

  /*! True if Nero driver is available. */
  bool cdio_have_nrg     (void);

  /*! True if BIN/CUE driver is available. */
  bool cdio_have_bincue  (void);

  /*! True if cdrdao CDRDAO driver is available. */
  bool cdio_have_cdrdao  (void);

  /*! Like cdio_have_xxx but uses an enumeration instead. */
  bool cdio_have_driver (driver_id_t driver_id);
  
  /*! 
    Get a string decribing driver_id. 

    @param driver_id the driver you want the description for
    @return a sring of driver description
  */
  const char *cdio_driver_describe (driver_id_t driver_id);
  
  /*! Sets up to read from place specified by source_name and
     driver_id. This or cdio_open_* should be called before using any
     other routine, except cdio_init. This will call cdio_init, if
     that hasn't been done previously.  to call one of the specific
     cdio_open_xxx routines.

     @return the cdio object or NULL on error or no device.
  */
  CdIo * cdio_open (const char *source_name, driver_id_t driver_id);

  /*! Sets up to read from place specified by source_name, driver_id
     and access mode. This or cdio_open should be called before using
     any other routine, except cdio_init. This will call cdio_init, if
     that hasn't been done previously.  to call one of the specific
     cdio_open_xxx routines.

     @return the cdio object or NULL on error or no device.
  */
  CdIo * cdio_open_am (const char *psz_source_name, 
		       driver_id_t driver_id, const char *psz_access_mode);

  /*! Set up BIN/CUE CD disk-image for reading. Source is the .bin or 
      .cue file

     @return the cdio object or NULL on error or no device.
   */
  CdIo * cdio_open_bincue (const char *psz_cue_name);
  
  /*! Set up BIN/CUE CD disk-image for reading. Source is the .bin or 
      .cue file

     @return the cdio object or NULL on error or no device..
   */
  CdIo * cdio_open_am_bincue (const char *psz_cue_name, 
			      const char *psz_access_mode);
  
  /*! Set up cdrdao CD disk-image for reading. Source is the .toc file

     @return the cdio object or NULL on error or no device.
   */
  CdIo * cdio_open_cdrdao (const char *psz_toc_name);
  
  /*! Set up cdrdao CD disk-image for reading. Source is the .toc file

     @return the cdio object or NULL on error or no device..
   */
  CdIo * cdio_open_am_cdrdao (const char *psz_toc_name, 
			      const char *psz_access_mode);
  
  /*! Return a string containing the default CUE file that would
      be used when none is specified.

     @return the cdio object or NULL on error or no device.
   */
  char * cdio_get_default_device_bincue(void);

  char **cdio_get_devices_bincue(void);

  /*! Return a string containing the default CUE file that would
      be used when none is specified.

     NULL is returned on error or there is no device.
   */
  char * cdio_get_default_device_cdrdao(void);

  char **cdio_get_devices_cdrdao(void);

  /*! Set up CD-ROM for reading. The device_name is
      the some sort of device name.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no driver for a some sort of hardware CD-ROM.
   */
  CdIo * cdio_open_cd (const char *device_name);

  /*! Set up CD-ROM for reading. The device_name is
      the some sort of device name.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no driver for a some sort of hardware CD-ROM.
   */
  CdIo * cdio_open_am_cd (const char *psz_device,
			  const char *psz_access_mode);

  /*! CDRWIN BIN/CUE CD disk-image routines. Source is the .cue file

     @return the cdio object for subsequent operations. 
     NULL on error.
   */
  CdIo * cdio_open_cue (const char *cue_name);

  /*! Set up CD-ROM for reading using the BSDI driver. The device_name is
      the some sort of device name.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no BSDI driver.

     @see cdio_open
   */
  CdIo * cdio_open_bsdi (const char *psz_source_name);
  
  /*! Set up CD-ROM for reading using the BSDI driver. The device_name is
      the some sort of device name.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no BSDI driver.

     @see cdio_open
   */
  CdIo * cdio_open_am_bsdi (const char *psz_source_name,
			    const char *psz_access_mode);
  
  /*! Return a string containing the default device name that the 
      BSDI driver would use when none is specified.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no BSDI driver.

     @see cdio_open_cd, cdio_open
   */
  char * cdio_get_default_device_bsdi(void);

  /*! Return a list of all of the CD-ROM devices that the BSDI driver
      can find.

      In some situations of drivers or OS's we can't find a CD device if
      there is no media in it and it is possible for this routine to return
      NULL even though there may be a hardware CD-ROM.
   */
  char **cdio_get_devices_bsdi(void);
  
  /*! Set up CD-ROM for reading using the FreeBSD driver. The device_name is
      the some sort of device name.

     NULL is returned on error or there is no FreeBSD driver.

     @see cdio_open_cd, cdio_open
   */
  CdIo * cdio_open_freebsd (const char *paz_source_name);
  
  /*! Set up CD-ROM for reading using the FreeBSD driver. The device_name is
      the some sort of device name.

     NULL is returned on error or there is no FreeBSD driver.

     @see cdio_open_cd, cdio_open
   */
  CdIo * cdio_open_am_freebsd (const char *psz_source_name,
			       const char *psz_access_mode);
  
  /*! Return a string containing the default device name that the 
      FreeBSD driver would use when none is specified.

     NULL is returned on error or there is no CD-ROM device.
   */
  char * cdio_get_default_device_freebsd(void);

  /*! Return a list of all of the CD-ROM devices that the FreeBSD driver
      can find.
   */
  char **cdio_get_devices_freebsd(void);
  
  /*! Set up CD-ROM for reading using the GNU/Linux driver. The device_name is
      the some sort of device name.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no GNU/Linux driver.

     In some situations of drivers or OS's we can't find a CD device if
     there is no media in it and it is possible for this routine to return
     NULL even though there may be a hardware CD-ROM.
   */
  CdIo * cdio_open_linux (const char *source_name);

  /*! Set up CD-ROM for reading using the GNU/Linux driver. The
      device_name is the some sort of device name.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no GNU/Linux driver.
   */
  CdIo * cdio_open_am_linux (const char *source_name,
			     const char *access_mode);

  /*! Return a string containing the default device name that the 
      GNU/Linux driver would use when none is specified. A scan is made
      for CD-ROM drives with CDs in them.

     NULL is returned on error or there is no CD-ROM device.

     In some situations of drivers or OS's we can't find a CD device if
     there is no media in it and it is possible for this routine to return
     NULL even though there may be a hardware CD-ROM.

     @see cdio_open_cd, cdio_open
   */
  char * cdio_get_default_device_linux(void);

  /*! Return a list of all of the CD-ROM devices that the GNU/Linux driver
      can find.
   */
  char **cdio_get_devices_linux(void);
  
  /*! Set up CD-ROM for reading using the Sun Solaris driver. The
      device_name is the some sort of device name.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no Solaris driver.
   */
  CdIo * cdio_open_solaris (const char *source_name);
  
  /*! Set up CD-ROM for reading using the Sun Solaris driver. The
      device_name is the some sort of device name.

     @return the cdio object for subsequent operations. 
     NULL on error or there is no Solaris driver.
   */
  CdIo * cdio_open_am_solaris (const char *psz_source_name, 
			       const char *psz_access_mode);
  
  /*! Return a string containing the default device name that the 
      Solaris driver would use when none is specified. A scan is made
      for CD-ROM drives with CDs in them.

     NULL is returned on error or there is no CD-ROM device.

     In some situations of drivers or OS's we can't find a CD device if
     there is no media in it and it is possible for this routine to return
     NULL even though there may be a hardware CD-ROM.

     @see cdio_open_cd, cdio_open
   */
  char * cdio_get_default_device_solaris(void);
  
  /*! Return a list of all of the CD-ROM devices that the Solaris driver
      can find.
   */
  char **cdio_get_devices_solaris(void);
  
  /*! Set up CD-ROM for reading using the Apple OSX driver. The
      device_name is the some sort of device name.

     NULL is returned on error or there is no OSX driver.

     In some situations of drivers or OS's we can't find a CD device if
     there is no media in it and it is possible for this routine to return
     NULL even though there may be a hardware CD-ROM.

     @see cdio_open_cd, cdio_open
   */
  CdIo * cdio_open_osx (const char *psz_source_name);

  /*! Set up CD-ROM for reading using the Apple OSX driver. The
      device_name is the some sort of device name.

     NULL is returned on error or there is no OSX driver.

     @see cdio_open_cd, cdio_open
   */
  CdIo * cdio_open_am_osx (const char *psz_source_name,
			   const char *psz_access_mode);

  /*! Return a string containing the default device name that the 
      OSX driver would use when none is specified. A scan is made
      for CD-ROM drives with CDs in them.

     In some situations of drivers or OS's we can't find a CD device if
     there is no media in it and it is possible for this routine to return
     NULL even though there may be a hardware CD-ROM.
   */
  char * cdio_get_default_device_osx(void);
  
  /*! Return a list of all of the CD-ROM devices that the OSX driver
      can find.
   */
  char **cdio_get_devices_osx(void);
  
  /*! Set up CD-ROM for reading using the Microsoft Windows driver. The
      device_name is the some sort of device name.

     In some situations of drivers or OS's we can't find a CD device if
     there is no media in it and it is possible for this routine to return
     NULL even though there may be a hardware CD-ROM.
   */
  CdIo * cdio_open_win32 (const char *source_name);
  
  /*! Set up CD-ROM for reading using the Microsoft Windows driver. The
      device_name is the some sort of device name.

     NULL is returned on error or there is no Microsof Windows driver.
   */
  CdIo * cdio_open_am_win32 (const char *psz_source_name,
			     const char *psz_access_mode);
  
  /*! Return a string containing the default device name that the 
      Win32 driver would use when none is specified. A scan is made
      for CD-ROM drives with CDs in them.

     In some situations of drivers or OS's we can't find a CD device if
     there is no media in it and it is possible for this routine to return
     NULL even though there may be a hardware CD-ROM.

     @see cdio_open_cd, cdio_open
   */
  char * cdio_get_default_device_win32(void);

  char **cdio_get_devices_win32(void);
  
  /*! Set up CD-ROM for reading using the Nero driver. The
      device_name is the some sort of device name.

     @return true on success; NULL on error or there is no Nero driver. 
   */
  CdIo * cdio_open_nrg (const char *source_name);
  
  /*! Set up CD-ROM for reading using the Nero driver. The
      device_name is the some sort of device name.

     @return true on success; NULL on error or there is no Nero driver. 
   */
  CdIo * cdio_open_am_nrg (const char *psz_source_name,
			   const char *psz_access_mode);
  
  /*! Return a string containing the default device name that the 
      NRG driver would use when none is specified. A scan is made
      for NRG disk images in the current directory..

     NULL is returned on error or there is no CD-ROM device.
   */
  char * cdio_get_default_device_nrg(void);

  char **cdio_get_devices_nrg(void);

  /*! 

    Determine if bin_name is the bin file part of  a CDRWIN CD disk image.

    @param bin_name location of presumed CDRWIN bin image file.
    @return the corresponding CUE file if bin_name is a BIN file or
    NULL if not a BIN file.
  */
  char *cdio_is_binfile(const char *bin_name);
  
  /*! 
    Determine if cue_name is the cue sheet for a CDRWIN CD disk image.

    @return corresponding BIN file if cue_name is a CDRWIN cue file or
    NULL if not a CUE file.
  */
  char *cdio_is_cuefile(const char *cue_name);
  
  /*! 
    Determine if psg_nrg is a Nero CD disk image.

    @param psz_nrg location of presumed NRG image file.
    @return true if psz_nrg is a Nero NRG image or false
    if not a NRG image.
  */
  bool cdio_is_nrg(const char *psz_nrg);
  
  /*! 
    Determine if psg_toc is a TOC file for a cdrdao CD disk image.

    @param psz_toc location of presumed TOC image file.
    @return true if toc_name is a cdrdao TOC file or false
    if not a TOC file.
  */
  bool cdio_is_tocfile(const char *psz_toc);
  
  /*! 
    Determine if source_name refers to a real hardware CD-ROM.

    @param source_name location name of object
    @param driver_id   driver for reading object. Use DRIVER_UNKNOWN if you
    don't know what driver to use.
    @return true if source_name is a device; If false is returned we
    could have a CD disk image. 
  */
  bool cdio_is_device(const char *source_name, driver_id_t driver_id);
  
#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* __CDIO_H__ */