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