110 lines
3.4 KiB
Groff
110 lines
3.4 KiB
Groff
.\" $NetBSD: getdiskbyname.3,v 1.10 2002/10/01 16:59:46 wiz Exp $
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.\"
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.\" Copyright (c) 1983, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)getdiskbyname.3 8.1 (Berkeley) 6/4/93
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.\"
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.Dd June 4, 1993
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.Dt GETDISKBYNAME 3
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.Os
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.Sh NAME
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.Nm getdiskbyname ,
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.Nm setdisktab
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.Nd get generic disk description by its name
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.Fd #include \*[Lt]sys/types.h\*[Gt]
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.Fd #include \*[Lt]sys/disklabel.h\*[Gt]
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.Fd #include \*[Lt]disktab.h\*[Gt]
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.Ft int
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.Fn setdisktab "char *name"
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.Ft struct disklabel *
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.Fn getdiskbyname "const char *name"
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.Sh DESCRIPTION
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The
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.Fn getdiskbyname
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function
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takes a disk name (e.g.
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.Ql rm03 )
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and returns a prototype disk label
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describing its geometry information and the standard
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disk partition tables.
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All information is obtained from the
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.Xr disktab 5
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file.
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.Pp
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The
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.Fn setdisktab
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function changes the default
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.Pn disktab
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file name from
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.Pa /etc/disktab
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.Pq aka Dv _PATH_DISKTAB
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to
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.Fa name .
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.Sh RETURN VALUES
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.Fn getdiskbyname
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returns a null pointer if the entry is not found in the current
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.Pa disktab
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file.
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.Pp
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.Fn setdisktab
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returns 0 on success and \-1 if
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.Fa name
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is a null pointer or points to an empty string.
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.Sh FILES
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.Bl -tag -width /etc/disktab -compact
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.It Pa /etc/disktab
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the default database of disk types.
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.El
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.Sh SEE ALSO
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.Xr disklabel 5 ,
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.Xr disktab 5 ,
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.Xr disklabel 8
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.Sh HISTORY
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The
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.Fn getdiskbyname
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function appeared in
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.Bx 4.3 .
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.Pp
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The
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.Fn setdisktab
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function appeared in
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.Nx 1.4 .
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.Sh BUGS
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The
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.Fn getdiskbyname
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function leaves its results in an internal static object and returns a
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pointer to that object.
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Subsequent calls will modify the same object.
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