cd_ptrec(3) Library Functions Manual cd_ptrec(3)
NAME
cd_ptrec, cd_cptrec - Reads the Path Table Record from the CD-ROM Path Table
LIBRARY
Rock Ridge and X/Open Extensions to the CDFS library (libcdrom.so, libcdrom.a)
SYNOPSIS
#include <sys/cdrom.h> int cd_ptrec ( char *path, struct iso9660_ptrec *ptrec ); int cd_cptrec ( char *path, char *addr
);
PARAMETERS
Points to a file or directory within the CD-ROM File System hierarchy.
Points to the iso9660_ptrec structure that holds the contents of the Path Table Record associated with the file or directory pointed
to by *path. The iso9660_ptrec 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_cptrec copies the complete Path Table Record that is recorded on the CD-ROM.
DESCRIPTION
The cd_ptrec routine fills the *ptrec structure with the contents of the Path Table Record associated with the directory that is pointed to
by *path.
The cd_cptrec function copies the complete Path Table Record that is recorded on the CD-ROM to the address pointed to by *addr. The user
must allocate {CD_MAXPTRECL} bytes for the Path Table Record. The variable {CD_MAXPTRECL} 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 named directory. 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 direc-
tory that is not within the CD-ROM file hierarchy. {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.
RELATED INFORMATION
Files: cdfs/xcdr.h, sys/cdrom.h.
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