LIBUFS(3) BSD Library Functions Manual LIBUFS(3)NAMElibufs — operate on UFS file systems from userland
LIBRARY
library “libufs”
SYNOPSIS
#include <sys/param.h>
#include <sys/mount.h>
#include <ufs/ufs/ufsmount.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#include <libufs.h>
DESCRIPTION
The libufs library and the functions it provides are used for implement‐
ing utilities which need to access a UFS file system at a low level from
userland. Facilities provided are used to implement utilities such as
newfs(8) and dumpfs(8). The libufs library is designed to be simple, and
to provide functions that are traditionally useful to have.
A disk is represented as the type struct uufsd as defined in <libufs.h>.
The structure is filled out, operations are performed, and the disk is
closed.
ERRORS
Functions provided by libufs return -1 in every functional error situa‐
tion. They also set the d_error field of struct uufsd to a string
describing the error.
SEE ALSObread(3), bwrite(3), cgread(3), cgread1(3), cgwrite1(3), sbread(3),
sbwrite(3), ufs_disk_close(3), ufs_disk_fillout(3),
ufs_disk_fillout_blank(3), ufs_disk_write(3), ffs(7)HISTORY
The libufs(3) library first appeared in FreeBSD 5.0.
AUTHORS
Juli Mallett ⟨jmallett@FreeBSD.org⟩
Additional design, feedback, and ideas were provided by Poul-Henning Kamp
⟨phk@FreeBSD.org⟩.
BSD June 4, 2003 BSD
