:man| Alphabetical   Categories   About us 
 
GETFSENT (3) | C library functions | Unix Manual Pages | :man

NAME

getfsent, getfsspec, getfsfile, setfsent, endfsent - get file system descriptor file entry

CONTENTS

Library
Synopsis
Description
Return Values
Environment
Files
See Also
History
Bugs

LIBRARY


.Lb libc

SYNOPSIS


.In fstab.h "struct fstab *" getfsent void "struct fstab *" getfsspec "const char *spec" "struct fstab *" getfsfile "const char *file" int setfsent void void endfsent void void setfstab "const char *file" "const char *" getfstab 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,
.In 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 */
intfs_freq; /* dump frequency, in days */
intfs_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 setfstab function sets the file to be used by subsequent operations. The value set by setfstab does not persist across calls to endfsent.

The getfstab function returns the name of the file that will be used.

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.

ENVIRONMENT

PATH_FSTAB If the environment variable PATH_FSTAB is set, all operations are performed against the specified file. PATH_FSTAB will not be honored if the process environment or memory address space is considered "tainted". (See issetugid(2) for more information.)

FILES

/etc/fstab

SEE ALSO

fstab(5)

HISTORY

BUGS


Share this page

     Follow us

Facebook Twitter Google+ LinkedIn


 
Created by Blin Media, 2008-2013