GETFSENT(3) BSD Programmer's Manual GETFSENT(3)NAME
getfsent, getfsspec, getfsfile, setfsent, endfsent - get file system
descriptor file entry
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; /* 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 fsck */
};
The fields have meanings described in fstab(5).
setfsent() opens the file (closing any previously opened file) or rewinds
it if it is already open.
endfsent() 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 ig-
nored.
RETURN VALUES
The getfsent(), getfsspec(), and getfsfile() functions return a null
pointer on EOF or error. The setfsent() function returns 0 on failure or
1 on success. The endfsent() function returns nothing.
FILES
/etc/fstab file system table
SEE ALSOfstab(5)HISTORY
The getfsent() function appeared in 4.0BSD; the endfsent(), getfsfile(),
getfsspec(), and setfsent() functions appeared in 4.3BSD.
BUGS
These functions use static data storage; if the data is needed for future
use, it should be copied before any subsequent calls overwrite it.
MirOS BSD #10-current June 4, 1993 1
