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cd_type(3)
NAME
cd_type - Determines the type of file system recorded on a CD-ROM
LIBRARY
Rock Ridge and X/Open Extensions to the CDFS library (libcdrom.so,
libcdrom.a)
SYNOPSIS
#include <sys/cdrom.h>
int cd_type (
char *path );
PARAMETERS
*path
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 function returns one of the following values, 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 indicate
the error.
ERRORS
The function will fail if:
[EACCES] 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.
[EFAULT] The address of *path is invalid.
[EINTR] A signal was caught during execution of the function.
[EINVAL] The argument *path points to a file or directory that is not
within the CD-ROM file hierarchy.
[EMFILE] {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.
[ENAMETOOLONG]
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.
[ENFILE] The system file table is full.
[ENOENT] A component of *path does not exist, or the *path argument points
to an empty string.
[ENOTDIR] A component of the *path prefix is not a directory.
[ENXIO] 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.
RELATED INFORMATION
Files: cdfs/xcdr.h, sys/cdrom.h.
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Index for Section 3 |
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Alphabetical listing for C |
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Top of page |
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