cdvd(1) General Commands Manual cdvd(1)NAME
cdvd - Read Primary Volume Descriptor from a CD-ROM
SYNOPSIS
/usr/bin/cdvd [-b] file
OPTIONS
Copies the entire Primary Volume Descriptor from a CD-ROM in binary format to standard output. Names the block special file for a CD-ROM
File System, or a file or directory within the CD-ROM file hierarchy of a mounted CD-ROM File System.
DESCRIPTION
The cdvd command reads the Primary Volume Descriptor from a CD-ROM and lists the contents on standard output.
The output is formatted in a table that contains the name of each field of the Primary Volume Descriptor and the corresponding contents of
the entry as recorded on the CD-ROM. Note that the Application Use Field is not listed because it may contain non-printable characters.
Users must have read permission for file in order to execute the command.
EXIT STATUS
The following exit values are returned: The command was successful. The named file was not found, or was not within the CD-ROM hierarchy,
or not a block special file for a CD-ROM File System, or access permission was denied. The named file is a block special file and a read
error has occurred, or the CD-ROM is not recorded according to the ISO 9660 standard.
SEE ALSO
Files: cd_cpvd(3), cd_pvd(3)cdvd(1)
Check Out this Related Man Page
cd_pvd(3) Library Functions Manual cd_pvd(3)NAME
cd_pvd, cd_cpvd - Reads the Primary Volume Descriptor from a CD-ROM
LIBRARY
Rock Ridge and X/Open Extensions to the CDFS library (libcdrom.so, libcdrom.a)
SYNOPSIS
#include <sys/cdrom.h> int cd_pvd ( char *path, struct iso9660_pvd *pvd ); int cd_cpvd ( char *path, char *addr );
PARAMETERS
Points to a pathname that names a file or directory within a CD-ROM File System hierarchy, or to a block-special file for a CD-ROM
File System.
Points to the iso9660_pvd structure that holds the contents of the Primary Volume Descriptor from the CD-ROM. The iso9660_pvd
structure is defined in cdfs/xcdr.h, an include file that is called into sys/cdrom.h
Points to the address to which the Primary Volume Descriptor on the CD-ROM is copied.
DESCRIPTION
The function cd_pvd fills the *pvd structure with the contents of the Primary Volume Descriptor from the CD-ROM. To execute this function
successfully, the user must have read or execute permission for the file or directory pointed to by *path
The function cd_cpvd copies the complete Primary Volume Descriptor that is recorded on the CD-ROM to the address pointed to by *addr. The
user must allocate {CD_PVDLEN} bytes for the Primary Volume Descriptor. The variable {CD_PVDLEN} is defined in cdfs/xcdr.h, an include
file that is called into sys/cdrom.h.
RETURN VALUES
If successful, the value zero is returned.
If unsuccessful, the integer -1 is returned and errno is set to indicate the error.
ERRORS
The function will fail if: Search permission is denied for a directory in *path or read permission is denied for the file, directory, or
block special file pointed to by *path. The address of *path or *pvd is invalid. A signal was caught during execution of the function.
The argument *path points to a file or directory that is not within the CD-ROM file hierarchy.
The named file is a block special file and the CD-ROM is not recorded according to the ISO 9660 standard. {OPEN_MAX} file descriptors are
currently open in the calling process.
[Tru64 UNIX] Either the OPEN_MAX value or the per-process soft descriptor limit is checked. The length of the *path string exceeds
{PATH_MAX}, or a pathname component is longer than {NAME_MAX} while {_POSIX_NO_TRUNC} is in effect. The system file table is full.
A component of *path does not exist, or the *path argument points to an empty string. A component of the *path prefix is not a
directory. The CD-ROM is not in the drive, or a read error occurred.
The named file is a block-special file and the device associated with the file does not exist.
RELATED INFORMATION
Files: cdfs/xcdr.h, sys/cdrom.h.
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cd_pvd(3)