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LIBUFS(3) FreeBSD Library Functions Manual LIBUFS(3)
NAME
libufs - operate on UFS file systems from userland
LIBRARY
UFS File System Access Library (libufs, -lufs)
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
implementing 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
situation. They also set the d_error field of struct uufsd to a string
describing the error.
SEE ALSO
berase(3), bread(3), bwrite(3), cgget(3), cgput(3), cgread(3),
cgread1(3), cgwrite(3), cgwrite1(3), getinode(3), putinode(3), sbget(3),
sbput(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>
Marshall Kirk McKusick <mckusick@FreeBSD.org>
Additional design, feedback, and ideas were provided by Poul-Henning Kamp
<phk@FreeBSD.org>.
FreeBSD 14.0-RELEASE-p6 September 2, 2020 FreeBSD 14.0-RELEASE-p6