NAME    [Toc]    [Back]

     libufs -- operate on UFS filesystems from userland

LIBRARY    [Toc]    [Back]

     UFS File System Access Library (libufs, -lufs)

SYNOPSIS    [Toc]    [Back]

     #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    [Toc]    [Back]

     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.

ERRORS    [Toc]    [Back]

     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    [Toc]    [Back]

     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).

HISTORY    [Toc]    [Back]

     The libufs(3) library first appeared in FreeBSD 5.0.

AUTHORS    [Toc]    [Back]

     Juli Mallett <jmallett@FreeBSD.org>

     Additional design, feedback, and ideas were provided by
     Poul-Henning Kamp <phk@FreeBSD.org>.


FreeBSD 5.2.1			 June 04, 2003			 FreeBSD 5.2.1