cd_nmconv(3) Library Functions Manual cd_nmconv(3)
NAME
cd_nmconv - Sets or gets CD-ROM file name conversions
LIBRARY
Rock Ridge and X/Open Extensions to the CDFS library (libcdrom.so, libcdrom.a)
SYNOPSIS
#include <sys/cdrom.h> int cd_nmconv ( char *path, int cmd, int *flag );
PARAMETERS
Points to a mount-point of a CD-ROM file system.
Can be set to either {CD_SETNMCONV} to set or {CD_GETNMCONV} to get the name conversion for file names on a mounted CD-ROM.
Used in conjunction with cmd, and can be one of the following:
{CD_NOCONV}
No conversion. This is the default when the CD-ROM is first mounted.
{CD_LOWER}
File or directory names on the CD-ROM File System are converted to lowercase when represented in the XSI file hierarchy. In addi-
tion, if a file or directory name contains no File Name Extension, SEPARATOR 1, a dot (.), is not represented in the XSI file hier-
archy.
{CD_NOVERSION}
The version number and SEPARATOR 2, a semi-colon (;), of a file or directory name on the CD-ROM File System are not represented in
the XSI file hierarchy.
Note that {CD_LOWER} and {CD_NOVERSION} may be bitwise-inclusive OR-ed.
DESCRIPTION
The cd_nmconv routine sets of gets the name conversion *flag for file names on a mounted CD-ROM.
RESTRICTIONS
Setting a file name conversion is restricted to users with the appropriate privileges. This function is intended to be used to set a file
name conversion only directly after the CD-ROM is mounted and before its files and directories are accessed. Attempting to use this func-
tion to set a file name conversion after files or directories on the CD-ROM have been accessed may produce unpredictable results.
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 on the mount-point. The
address of *flag or *path is invalid. A signal was caught during execution of the function. The argument *path does not point to a mount-
point of a CDROM File System.
The value of cmd or *flag is invalid. {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 user does not have the appropriate privileges to set values.
RELATED INFORMATION
Files: cdfs/xcdr.h, sys/cdrom.h.
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cd_nmconv(3)
