getfsent(3) BSD Library Functions Manual getfsent(3)
NAME
getfsent, getfsspec, getfsfile, setfsent, endfsent -- get file system
descriptor file entry
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#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);
DESCRIPTION
The 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; /* File system type, ufs, nfs */
char *fs_mntops; /* Mount options ala -o */
char *fs_type; /* FSTAB_* from fs_mntops */
int fs_freq; /* dump frequency, in days */
int fs_passno; /* pass number on parallel fsck */
};
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.
RETURN VALUES
The getfsent(), getfsspec(), and getfsfile() functions return a NULL
pointer on EOF or error. The setfsent() function returns 0 on failure, 1
on success. The endfsent() function returns nothing.
FILES
/etc/fstab
SEE ALSO
fstab(5)
HISTORY
The getfsent() function appeared in 4.0BSD; the endfsent(), getfsfile(),
getfsspec(), and setfsent() functions appeared in 4.3BSD.
BUGS
The data space used by these functions is thread-specific; if future use
requires the data, it should be copied before any subsequent calls to
these functions overwrite it.
BSD April 7, 2003 BSD
Mac OS X 10.6 - Generated Thu Sep 17 20:20:02 CDT 2009