1.\" 2.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org> 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.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd October 17, 2016 28.Dt sysdecode_sockopt_name 3 29.Os 30.Sh NAME 31.Nm sysdecode_sockopt_name 32.Nd lookup name of socket option 33.Sh LIBRARY 34.Lb libsysdecode 35.Sh SYNOPSIS 36.In sys/types.h 37.In stdbool.h 38.In sysdecode.h 39.Ft const char * 40.Fn sysdecode_sockopt_name "int level" "int optname" 41.Sh DESCRIPTION 42The 43.Fn sysdecode_sockopt_name 44function returns a text description of the socket option name passed in the 45.Fa optname 46argument to 47.Xr getsockopt 2 . 48.Fn sysdecode_sockopt_name 49takes the socket option 50.Fa level 51as well as the option name to uniquely identify the option. 52.Sh SEE ALSO 53.Xr sysdecode_sockopt_level 3 54.Sh BUGS 55Socket option levels and names are protocol-specific. 56Both 57.Fn sysdecode_sockopt_level 58and 59.Fn sysdecode_sockopt_name 60should possibly accept the protocol family as an additional argument. 61