cd_type(3)cd_type(3)NAMEcd_type - determines the type of file system recorded on a CD-ROM
SYNOPSIS
#include <sys/cdrom.h>
int cd_type(
char *path );
LIBRARY
Rock Ridge and X/Open Extensions to the CDFS library (libcdrom.so,
libcdrom.a)
PARAMETERS
Points to a pathname naming a file or directory within the CD-ROM File
System hierarchy, or to a pathname naming the block special file for
the CD-ROM File System.
DESCRIPTION
The cd_type() routine determines the type of file system recorded on
the CD-ROM pointed to by *path.
RETURN VALUES
If successful, the cd_type() function returns one of the following val‐
ues, which are defined in cdfs/xcdr.h, an include file that is called
into sys/cdrom.h:
{CD_ISO9660} -- CD-ROM is recorded according to ISO 9660.
{CD_HSG} -- CD-ROM is recorded according to High Sierra Group.
{CD_RRIP} -- CD-ROM is recorded according to ISO 9660 with the Rock
Ridge Extension.
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 and execute permission are denied for the named file,
or read permission is denied on the block special file pointed to by
*path. The address of *path 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.
[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 special file does not exist.
SEE ALSO
Files: cdfs/xcdr.h, sys/cdrom.h
cd_type(3)