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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 hi- erarchy. 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 indi- cate 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 ad- dress of *path or *addr is invalid. A signal was caught during execu- tion of the function. The argument *path points to a file or directory that is not within the CD-ROM file hierarchy. {OPEN_MAX} file descrip- tors are currently open in the calling process. [DIGITAL] Either the OPEN_MAX value or the per-process soft de- scriptor limit is checked. The length of the *path string ex- ceeds {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. delim off cd_ptrec(3)