Provided by: libdevice-cdio-perl_2.0.0-2build1_amd64 bug

NAME

       Device::Cdio::ISO9660::FS - Class for ISO 9660 CD reading

SYNOPSIS

       This encapsulates ISO 9660 Filesystem aspects of CD Tracks.  As such this is a This
       library however needs to be used in conjunction with Device::Cdio::ISO9660.

           use Device::Cdio::ISO9660:FS;
           $cd = Device::Cdio::ISO9660::FS->new(-source=>'/dev/cdrom');
           $statbuf = $cd->stat ($iso9660_path.$local_filename);

           $blocks = POSIX::ceil($statbuf->{size} / $perlcdio::ISO_BLOCKSIZE);
           for (my $i = 0; $i < $blocks; $i++) {
               my $buf = $cd->read_data_blocks ($statbuf->{LSN} + $i);
               die if !defined($buf);
           }

           print $buf;

DESCRIPTION

       This is an Object-Oriented interface to the GNU CD Input and Control library ("libcdio")
       which is written in C. This class handles ISO 9660 tracks on a CD or in a CD-ROM.

       Note that working with a CD in a CD-ROM which has tracks in the ISO-9660 format is
       distinct working with a file in a filesystem which contains an ISO-9660 image. See also
       Device::Cdio::ISO9660::IFS for working with an ISO 9660 image stored as a file in a
       filesystem.

   CALLING ROUTINES
       Routines accept named parameters as well as positional parameters.  For named parameters,
       each argument name is preceded by a dash. For example:

           Device::Cdio::ISO9660::FS->new(-source=>'MYISO.CUE')

       Each argument name is preceded by a dash.  Neither case nor order matters in the argument
       list.  -driver_id, -Driver_ID, and -DRIVER_ID are all acceptable.  In fact, only the first
       argument needs to begin with a dash.  If a dash is present in the first argument, we
       assume dashes for the subsequent parameters.

       In the documentation below and elsewhere in this package the parameter name that can be
       used in this style of call is given in the parameter list. For example, for "close_tray"
       the documentation below reads:

          close_tray(drive=undef, driver_id=$perlcdio::DRIVER_UNKNOWN)
           -> ($drc, $driver_id)

       So the parameter names are "drive", and "driver_id". Neither parameter is required. If
       "drive" is not specified, a value of "undef" will be used. And if "driver_id" is not
       specified, a value of $perlcdio::DRIVER_UNKNOWN is used.

       The older, more traditional style of positional parameters is also supported. So the "new"
       example from above can also be written:

           Device::Cdio::ISO9660::FS->new('MYISO.CUE')

       Finally, since no parameter name can be confused with a an integer, negative values will
       not get confused as a named parameter.

   find_lsn
         find_lsn(lsn)->$stat_href

       Find the filesystem entry that contains LSN and return information about it. Undef is
       returned on error.

   readdir
         readdir(dirname)->@iso_stat

       Read path (a directory) and return a list of iso9660 stat references

       Each item of @iso_stat is a hash reference which contains

       LSN the Logical sector number (an integer)

       size
           the total size of the file in bytes

       sec_size
           the number of sectors allocated

       filename
           the file name of the statbuf entry

       XA  if the file has XA attributes; 0 if not

       is_dir
           1 if a directory; 0 if a not;

       FIXME: If you look at iso9660.h you'll see more fields, such as for Rock-Ridge specific
       fields or XA specific fields. Eventually these will be added. Volunteers?

   read_pvd
         read_pvd()->pvd

       Read the Super block of an ISO 9660 image. This is the Primary Volume Descriptor (PVD) and
       perhaps a Supplemental Volume Descriptor if (Joliet) extensions are acceptable.

   read_superblock
         read_superblock(iso_mask=$libiso9660::EXTENSION_NONE)->bool

       Read the Super block of an ISO 9660 image. This is the rimary Volume Descriptor (PVD) and
       perhaps a Supplemental Volume Descriptor if (Joliet) extensions are acceptable.

   stat
         stat(path, translate=0)->\%stat

       Return file status for path name psz_path. NULL is returned on error.

       If translate is 1,  version numbers in the ISO 9660 name are dropped, i.e. ;1 is removed
       and if level 1 ISO-9660 names are lowercased.

       Each item of @iso_stat is a hash reference which contains

       LSN the Logical sector number (an integer)

       size
           the total size of the file in bytes

       sec_size
           the number of sectors allocated

       filename
           the file name of the statbuf entry

       XA  if the file has XA attributes; 0 if not

       is_dir
           1 if a directory; 0 if a not;

SEE ALSO

       This is a subclass of Device::Cdio::Device. See also Device::Cdio::Device. See
       Device::Cdio::ISO9660::IFS for working with ISO 9660 images.

       perliso9660 is the lower-level interface to "libiso9660", the ISO 9660 library of
       "libcdio".

       <http://www.gnu.org/software/libcdio/doxygen/iso9660_8h.html> is documentation via doxygen
       of "libiso9660".  doxygen.

AUTHORS

       Rocky Bernstein

COPYRIGHT

       Copyright (C) 2006, 2007, 2008, 2017 Rocky Bernstein <rocky@cpan.org>

       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 3 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, see The GNU General Public License <http://www.gnu.org/licenses/#GPL>.