ioctl_fat - manipulating the FAT filesystem

NAME LIBRARY SYNOPSIS DESCRIPTION Reading and setting file attributes Reading the volume ID Reading short filenames of a directory RETURN VALUE ERRORS STANDARDS SEE ALSO

NAME

ioctl_fat − manipulating the FAT filesystem

LIBRARY

Standard C library (libc, −lc)

SYNOPSIS

#include <sys/ioctl.h>

int ioctl(int fd, unsigned long op, ...);

DESCRIPTION

The ioctl(2) system call can be used to read and write metadata of FAT filesystems that are not accessible using other system calls. The following op values are available.

Reading and setting file attributes

FAT_IOCTL_GET_ATTRIBUTES(2const)
FAT_IOCTL_SET_ATTRIBUTES(2const)

Reading the volume ID

FAT_IOCTL_GET_VOLUME_ID(2const)

Reading short filenames of a directory

VFAT_IOCTL_READDIR_BOTH(2const)
VFAT_IOCTL_READDIR_SHORT(2const)

RETURN VALUE

On success, a nonnegative value is returned. On error, −1 is returned, and errno is set to indicate the error.

ERRORS

ENOTTY

The file descriptor fd does not refer to an object in a FAT filesystem.

STANDARDS

Linux.