add readlabelfs.3

src/lib/libutil/Makefile

@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.10 1996/12/08 15:22:34 downsj Exp $
+#	$OpenBSD: Makefile,v 1.11 1996/12/23 08:25:30 downsj Exp $
 #	$NetBSD: Makefile,v 1.8 1996/05/16 07:03:28 thorpej Exp $
 
 LIB=	util
@@ -10,7 +10,7 @@ SRCS=	getmaxpartitions.c getrawpartition.c login.c login_tty.c logout.c \
 
 # XXX need login_fbtab.3
 MAN=	getmaxpartitions.3 getrawpartition.3 login.3 opendev.3 openpty.3 \
-	pw_init.3 pw_lock.3 scsi.3
+	pw_init.3 pw_lock.3 readlabelfs.3 scsi.3
 
 MLINKS+=login.3 logout.3
 MLINKS+=login.3 logwtmp.3

src/lib/libutil/readlabelfs.3

@@ -0,0 +1,59 @@
+.\"	$OpenBSD: readlabelfs.3,v 1.1 1996/12/23 08:25:31 downsj Exp $
+.\"
+.\" Copyright (c) 1996, Jason Downs.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
+.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
+.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd December 22, 1996
+.Dt READLABELFS 3
+.Os
+.Sh NAME
+.Nm readlabelfs
+.Nd read disklabel filesystem type
+.Sh SYNOPSIS
+.Fd #include <util.h>
+.Ft char *
+.Fn readlabelfs "char *device" "int verbose"
+.Sh DESCRIPTION
+The
+.Fn readlabelfs
+function attempts to determine the filesystem type of the disk
+partition specified by
+.Ar device
+and returns it in a short form that can be easily used to construct
+arguments within
+.Xr mount 8
+and similar high-level filesystem utilties.
+.Pp
+If the
+.Ar verbose
+argument is not 0,
+.Fn readlabelfs
+will print appropiate error messages before returning.  Otherwise, it
+produces no output on the terminal.
+.Pp
+.Sh RETURN VALUES
+.Fn readlabelfs
+returns NULL upon error, or a valid filesystem type upon success.
+.Sh HISTORY
+.Fn readlabelfs
+first appeared in OpenBSD 2.0.