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UFS_DISK_CLOSE(3)	 BSD Library Functions Manual	     UFS_DISK_CLOSE(3)

NAME
     ufs_disk_close, ufs_disk_fillout, ufs_disk_fillout_blank, ufs_disk_write
     --	open and close userland	UFS disks

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>

     int
     ufs_disk_close(struct uufsd *disk);

     int
     ufs_disk_fillout(struct uufsd *disk, const	char *name);

     int
     ufs_disk_fillout_blank(struct uufsd *disk,	const char *name);

     int
     ufs_disk_write(struct uufsd *disk);

DESCRIPTION
     The ufs_disk_close() function closes a disk and frees internal memory re-
     lated to it.  It does not free the	disk structure.

     The ufs_disk_fillout() and	ufs_disk_fillout_blank() functions open	a disk
     specified by name and populate the	structure pointed to by	disk.  The
     disk is opened read-only.	The specified name may be either a mountpoint,
     a device name or a	filesystem image.  The ufs_disk_fillout() function as-
     sumes there is a valid superblock and will	fail if	not, whereas the
     ufs_disk_fillout_blank() function makes no	assumptions of that sort.

     The ufs_disk_write() function attempts to re-open a disk as writable if
     it	is not currently.

ERRORS
     The function ufs_disk_close() has no failure points.

     The function ufs_disk_fillout() may fail for any of the reasons
     ufs_disk_fillout_blank() might, as	well as	for any	reason sbread(3)
     might.

     The ufs_disk_fillout_blank() may fail and set errno for any of the	errors
     specified for the library functions open(2), strdup(3).  Additionally, it
     may follow	the libufs(3) error methodologies in situations	where no de-
     vice could	be found to open.

     The function ufs_disk_write() may fail and	set errno for any of the er-
     rors specified for	the library functions open(2) and stat(2).  Namely, it
     will fail if the disk in question may not be written to.

SEE ALSO
     open(2), getfsfile(3), libufs(3), sbread(3)

HISTORY
     These functions first appeared as part of libufs(3) in FreeBSD 5.0.

AUTHORS
     Juli Mallett <jmallett@FreeBSD.org>

BSD				 June 4, 2003				   BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | ERRORS | SEE ALSO | HISTORY | AUTHORS

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