1.\" Copyright (c) 1983, 1991, 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. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)protocols.5 8.1 (Berkeley) 6/5/93 33.\" $FreeBSD: src/share/man/man5/protocols.5,v 1.3.2.2 2001/08/17 13:08:47 ru Exp $ 34.\" 35.Dd June 5, 1993 36.Dt PROTOCOLS 5 37.Os 38.Sh NAME 39.Nm protocols 40.Nd protocol name data base 41.Sh DESCRIPTION 42The 43.Nm 44file contains information regarding the known protocols used in the 45.Tn DARPA 46Internet. For each protocol a single line should be present 47with the following information: 48.Bd -unfilled -offset indent 49official protocol name 50protocol number 51aliases 52.Ed 53.Pp 54Items are separated by any number of blanks and/or 55tab characters. A ``#'' indicates the beginning of 56a comment; characters up to the end of the line are 57not interpreted by routines which search the file. 58.Pp 59Protocol names may contain any printable 60character other than a field delimiter, newline, 61or comment character. 62.Sh FILES 63.Bl -tag -width /etc/protocols -compact 64.It Pa /etc/protocols 65The 66.Nm 67file resides in 68.Pa /etc . 69.El 70.Sh SEE ALSO 71.Xr getprotoent 3 72.Sh BUGS 73A name server should be used instead of a static file. 74.Sh HISTORY 75The 76.Nm 77file format appeared in 78.Bx 4.2 . 79