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cd_ptrec, cd_cptrec - Reads the Path Table Record from the CD-ROM Path Table
Rock Ridge and X/Open Extensions to the CDFS library (libcdrom.so, libcdrom.a)
#include <sys/cdrom.h>
int cd_ptrec (
char *path,
struct iso9660_ptrec *ptrec );
int cd_cptrec (
char *path,
char *addr );
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.
If successful,
the value zero
is returned.
If unsuccessful,
the integer
-1 is returned
and
errno
is set to
indicate the error.
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 directory that is not within the CD-ROM file hierarchy. {OPEN_MAX} file descriptors are currently open in the calling process.
Files: cdfs/xcdr.h, sys/cdrom.h.
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