libufs -- operate on UFS filesystems from userland
UFS File System Access Library (libufs, -lufs)
#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>
The libufs library and the functions it provides are used for implementing
utilities which need to access a UFS filesystem 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.
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.
bread(3), bwrite(3), cgread(3), cgread1(3), sbread(3), sbwrite(3),
ufs_disk_close(3), ufs_disk_fillout(3), ufs_disk_fillout_blank(3),
ufs_disk_write(3), ffs(7).
The libufs(3) library first appeared in FreeBSD 5.0.
Juli Mallett <[email protected]>
Additional design, feedback, and ideas were provided by
Poul-Henning Kamp <[email protected]>.
FreeBSD 5.2.1 June 04, 2003 FreeBSD 5.2.1 [ Back ] | 