struct
fstab
*
getfsent(
void
)
struct
fstab
*
getfsspec(
const char *spec
)
struct
fstab
*
getfsfile(
const char *file
)
int
setfsent(
void
)
void
endfsent(
void
)
),
getfsspec(
),
and
getfsfile(
)
functions
each return a pointer to an object with the following structure
containing the broken-out fields of a line in the file system
description file,
<
fstab.h
>.
struct fstab {
char *fs_spec; /* block special device name */
char *fs_file; /* file system path prefix */
char *fs_vfstype; /* type of file system */
char *fs_mntops; /* comma separated mount options */
char *fs_type; /* rw, ro, sw, or xx */
int fs_freq; /* dump frequency, in days */
int fs_passno; /* pass number on parallel dump */
};
The fields have meanings described in fstab(5).
The
setfsent()
function
opens the file (closing any previously opened file) or rewinds it
if it is already open.
The
endfsent()
function
closes the file.
The
getfsspec()
and
getfsfile(
)
functions
search the entire file (opening it if necessary) for a matching special
file name or file system file name.
For programs wishing to read the entire database,
getfsent()
reads the next entry (opening the file if necessary).
All entries in the file with a type field equivalent to
FSTAB_XX
are ignored.
),
getfsspec(
),
and
getfsfile(
)
functions
return a null pointer (0) on
EOF
or error.
The
setfsent(
)
function
returns 0 on failure, 1 on success.
The
endfsent(
)
function
returns nothing.
/etc/fstab
)
function appeared in
4.0BSD;
the
endfsent(
),
getfsfile(
),
getfsspec(
),
and
setfsent(
)
functions appeared in
4.3BSD.