Content-type: text/html Man page of cd_drec

cd_drec

Section: C Library Functions (3)
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NAME

cd_drec, cd_cdrec - Reads the Directory Record from a CD-ROM directory  

LIBRARY

Rock Ridge and X/Open Extensions to the CDFS library (libcdrom.so, libcdrom.a)  

SYNOPSIS

#include <sys/cdrom.h> int cd_drec (        char *path,
       int fsec,
       struct iso9660_drec *drec );
int cd_cdrec (        char *path,
       int fsec,
       char *addr );
 

PARAMETERS

Points to a file or directory within the CD-ROM File System hierarchy.
Specifies the File Section of the file or directory pointed to by *path, with the numbering beginning at one. If fsec is set to -1, the last File Section of the named file or the only File Section of the named directory is assumed.
Points to the iso9660_drec structure that holds the contents of the Directory Record associated with the file or directory pointed to by *path. The iso9660_drec structure is defined in cdfs/xcdr.h, an include file that is called into sys/cdrom.h.
Specifies the address to which the function cd_cdrec copies the complete Directory Record that is recorded on the CD-ROM.
 

DESCRIPTION

The cd_drec routine fills the *drec structure with the contents of the Directory Record that is associated with a file or directory pointed to by *path.

The cd_cdrec function copies the complete Directory Record from the CD-ROM to the address pointed to by *addr. The user must allocate {CD_MAXDRECL} bytes for the Directory Record. The variable {CD_MAXDRECL} 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 or directory pointed to by *path. The address of *path or *addr 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 value of fsec is invalid. {OPEN_MAX} file descriptors are currently open in the calling process.
[DIGITAL]  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.
 

RELATED INFORMATION

Files: cdfs/xcdr.h, sys/cdrom.h.

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Index

NAME
LIBRARY
SYNOPSIS
PARAMETERS
DESCRIPTION
RETURN VALUES
ERRORS
RELATED INFORMATION

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Time: 02:41:10 GMT, October 02, 2010