1.\" Copyright (c) 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" from: @(#)dev_mkdb.8 8.1 (Berkeley) 6/6/93 29.\" $NetBSD: dev_mkdb.8,v 1.13 2012/06/03 21:42:47 joerg Exp $ 30.\" 31.Dd June 1, 2012 32.Dt DEV_MKDB 8 33.Os 34.Sh NAME 35.Nm dev_mkdb 36.Nd create 37.Pa /dev 38database 39.Sh SYNOPSIS 40.Nm 41.Op Fl c 42.Op Fl o Ar database 43.Op directory 44.Sh DESCRIPTION 45The 46.Nm 47command creates a 48.Xr cdbr 3 49database in 50.Dq Pa /var/run/dev.cdb 51which contains the names of all of the character and block special 52files in the specified directory, using the file type and the 53.Fa st_rdev 54field as the key. 55If no directory is specified, the 56.Dq Pa /dev 57directory is used. 58.Pp 59Keys are a structure containing a mode_t followed by a dev_t, 60with any padding zero'd out. 61The former is the type of the file (st_mode \*[Am] S_IFMT), 62the latter is the st_rdev field. 63.Pp 64The options are as follows: 65.Bl -tag -width indent 66.It Fl c 67Create a 68.Xr db 3 69database for compatibility with libc versions and statically linked programs 70from before 71.Nx 6.0 . 72The default name is 73.Dq Pa /var/run/dev.db . 74.It Fl o Ar database 75Put the output databases in the named file. 76.El 77.Sh FILES 78.Bl -tag -width /var/run/dev.db -compact 79.It Pa /dev 80Device directory. 81.It Pa /var/run/dev.db 82Database file. 83.El 84.Sh SEE ALSO 85.Xr ps 1 , 86.Xr stat 2 , 87.Xr db 3 , 88.Xr devname 3 , 89.Xr kvm_nlist 3 , 90.Xr ttyname 3 91.Sh HISTORY 92The 93.Nm 94command appeared in 95.Bx 4.4 . 96