FSTAB(5) FSTAB(5)
NAME
fstab - static information about the filesystems
SYNOPSIS
#include <fstab.h>
DESCRIPTION
The file /etc/fstab contains descriptive information about
the various file systems. /etc/fstab is only read by pro-
grams, and not written; it is the duty of the system admin-
istrator to properly create and maintain this file.
These programs use /etc/fstab: dump, mount, umount, swapon,
fsck and df. The order of records in /etc/fstab is impor-
tant; fsck, mount, and umount depend on it.
The special file name is the block special file name, and
not the character special file name. If a program needs the
character special file name, the program must create it by
inserting an `r' after the last `/' in the special file
name.
#define FSTAB "/etc/fstab"
#define FSNMLG 16
#define FSTABFMT "%16s:%16s:%2s:%d:%d\n"
#define FSTABARG(p) (p)->fs_spec, (p)->fs_file, \
(p)->fs_type, &(p)->fs_freq, &(p)->fs_passno
#define FSTABNARGS 5
#define FSTAB_RW "rw" /* read write device */
#define FSTAB_RO "ro" /* read only device */
#define FSTAB_SW "sw" /* swap device */
#define FSTAB_XX "xx" /* ignore totally */
struct fstab {
char fs_spec[FSNMLG]; /* block special device name */
char fs_file[FSNMLG]; /* file system path prefix */
char fs_type[3]; /* rw,ro,sw or xx */
int fs_freq; /* dump frequency, in days */
int fs_passno; /* pass number on parallel dump */
};
The proper way to read records from /etc/fstab is to use the
routines getfsent(), getfsspec() or getfsfile().
FILES
/etc/fstab
FSTAB(5) FSTAB(5)
SEE ALSO
getfsent(3)