1.\" Copyright (c) 1995 2.\" Bill Paul <wpaul@ctr.columbia.edu>. 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. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by Bill Paul. 15.\" 4. Neither the name of the author nor the names of any co-contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.\" $FreeBSD: src/share/man/man5/eui64.5,v 1.2 2004/07/07 20:32:33 ru Exp $ 32.\" $DragonFly: src/share/man/man5/eui64.5,v 1.1 2004/09/23 06:33:04 simokawa Exp $ 33.\" 34.Dd May 11, 2004 35.Dt EUI64 5 36.Os 37.Sh NAME 38.Nm eui64 39.Nd IEEE EUI-64 address database 40.Sh DESCRIPTION 41The 42.Nm 43database contains information regarding known IEEE EUI-64s of hosts. 44The data is stored in a file called 45.Pa /etc/eui64 46in the following format: 47.Bd -ragged -offset indent 48.Em EUI-64 host-name 49.Ed 50.Pp 51Items are separated by any number of blanks and/or 52tab characters. 53A 54.Ql # 55at the start of a line indicates the 56beginning of a comment that extends to the end of the line. 57Valid lines may also contain comments. 58A 59.Ql + 60at the start of a line will cause the 61.Xr eui64 3 62library functions to use data stored in the 63NIS 64.Pa eui64.byname 65and 66.Pa eui64.byid 67maps in addition to the data in the 68.Pa /etc/eui64 69file. 70.Pp 71An EUI-64 is expressed in 72.Tn ASCII 73form as 74.Qq x-x-x-x-x-x-x-x 75where 76.Ar x 77is a hexadecimal value between 0x00 and 0xFF. 78The address values 79should be in network order. 80Hostnames specified in the 81.Pa /etc/eui64 82database should correspond to entries in the 83.Xr hosts 5 84file. 85.\" .Pp 86.\" The 87.\" .Fn eui64_line 88.\" function in the standard C library can be used to break individual 89.\" lines in the 90.\" .Pa /etc/eui64 91.\" database into their individual components: a binary EUI-64 is 92.\" stored as an 93.\" .Pa eui64_addr 94.\" structure, and a hostname stored as a character string. 95.Sh FILES 96.Bl -tag -width ".Pa /etc/eui64" -compact 97.It Pa /etc/eui64 98The 99.Nm 100file resides in 101.Pa /etc . 102.El 103.Sh SEE ALSO 104.Xr eui64 3 , 105.Xr yp 8 106.Sh HISTORY 107The 108.Nm 109format is based on the 110.Xr ethers 5 111format. 112