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+.\" Copyright (c) 1983, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)protocols.5	8.1 (Berkeley) 6/5/93
+.\" $FreeBSD$
+.\"
+.Dd June 5, 1993
+.Dt PROTOCOLS 5
+.Os
+.Sh NAME
+.Nm protocols
+.Nd protocol name data base
+.Sh DESCRIPTION
+The
+.Nm
+file contains information regarding the known protocols used in the
+.Tn DARPA
+Internet.
+For each protocol a single line should be present
+with the following information:
+.Bd -unfilled -offset indent
+official protocol name
+protocol number
+aliases
+.Ed
+.Pp
+Items are separated by any number of blanks and/or
+tab characters.
+A ``#'' indicates the beginning of
+a comment; characters up to the end of the line are
+not interpreted by routines which search the file.
+.Pp
+Protocol names may contain any printable
+character other than a field delimiter, newline,
+or comment character.
+.Sh FILES
+.Bl -tag -width /etc/protocols -compact
+.It Pa /etc/protocols
+The
+.Nm
+file resides in
+.Pa /etc .
+.El
+.Sh SEE ALSO
+.Xr getprotoent 3
+.Sh HISTORY
+The
+.Nm
+file format appeared in
+.Bx 4.2 .
+.Sh BUGS
+A name server should be used instead of a static file.