GETFSENT(3) | Library Functions Manual | GETFSENT(3) |
getfsent
, getfsspec
,
getfsfile
, setfsent
,
endfsent
—
#include <fstab.h>
struct fstab *
getfsent
(void);
struct fstab *
getfsspec
(const
char *spec);
struct fstab *
getfsfile
(const
char *file);
int
setfsent
(void);
void
endfsent
(void);
getfsent
(), 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.
getfsent
(), 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.
getfsent
() function appeared in
4.0BSD; the endfsent
(),
getfsfile
(), getfsspec
(), and
setfsent
() functions appeared in
4.3BSD.
March 6, 2012 | NetBSD 9.0 |