1.\" 2.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd October 17, 2016 29.Dt sysdecode_sockopt_name 3 30.Os 31.Sh NAME 32.Nm sysdecode_sockopt_name 33.Nd lookup name of socket option 34.Sh LIBRARY 35.Lb libsysdecode 36.Sh SYNOPSIS 37.In sys/types.h 38.In stdbool.h 39.In sysdecode.h 40.Ft const char * 41.Fn sysdecode_sockopt_name "int level" "int optname" 42.Sh DESCRIPTION 43The 44.Fn sysdecode_sockopt_name 45function returns a text description of the socket option name passed in the 46.Fa optname 47argument to 48.Xr getsockopt 2 . 49.Fn sysdecode_sockopt_name 50takes the socket option 51.Fa level 52as well as the option name to uniquely identify the option. 53.Sh SEE ALSO 54.Xr sysdecode_sockopt_level 3 55.Sh BUGS 56Socket option levels and names are protocol-specific. 57Both 58.Fn sysdecode_sockopt_level 59and 60.Fn sysdecode_sockopt_name 61should possibly accept the protocol family as an additional argument. 62