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.\" $FreeBSD$ 32.\" 33.Dd May 11, 2004 34.Dt EUI64 5 35.Os 36.Sh NAME 37.Nm eui64 38.Nd IEEE EUI-64 address database 39.Sh DESCRIPTION 40The 41.Nm 42database contains information regarding known IEEE EUI-64s of hosts. 43The data is stored in a file called 44.Pa /etc/eui64 45in the following format: 46.Bd -ragged -offset indent 47.Em EUI-64 host-name 48.Ed 49.Pp 50Items are separated by any number of blanks and/or 51tab characters. 52A 53.Ql # 54at the start of a line indicates the 55beginning of a comment that extends to the end of the line. 56Valid lines may also contain comments. 57A 58.Ql + 59at the start of a line will cause the 60.Xr eui64 3 61library functions to use data stored in the 62NIS 63.Pa eui64.byname 64and 65.Pa eui64.byid 66maps in addition to the data in the 67.Pa /etc/eui64 68file. 69.Pp 70An EUI-64 is expressed in 71.Tn ASCII 72form as 73.Qq x-x-x-x-x-x-x-x 74where 75.Ar x 76is a hexadecimal value between 0x00 and 0xFF. 77The address values 78should be in network order. 79Hostnames specified in the 80.Pa /etc/eui64 81database should correspond to entries in the 82.Xr hosts 5 83file. 84.\" .Pp 85.\" The 86.\" .Fn eui64_line 87.\" function in the standard C library can be used to break individual 88.\" lines in the 89.\" .Pa /etc/eui64 90.\" database into their individual components: a binary EUI-64 is 91.\" stored as an 92.\" .Pa eui64_addr 93.\" structure, and a hostname stored as a character string. 94.Sh FILES 95.Bl -tag -width ".Pa /etc/eui64" -compact 96.It Pa /etc/eui64 97The 98.Nm 99file resides in 100.Pa /etc . 101.El 102.Sh SEE ALSO 103.Xr eui64 3 , 104.Xr yp 8 105.Sh HISTORY 106The 107.Nm 108format is based on the 109.Xr ethers 5 110format. 111