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.\"
.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org>
.\"
.\" 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
.\"
.\" $FreeBSD$
.\"
.Dd October 17, 2016
.Dt sysdecode_sigcode 3
.Os
.Sh NAME
.Nm sysdecode_sigcode
.Nd lookup name of signal code
.Sh LIBRARY
.Lb libsysdecode
.Sh SYNOPSIS
.In sys/types.h
.In stdbool.h
.In sysdecode.h
.Ft const char *
.Fn sysdecode_sigcode "int signal" "int si_code"
.Sh DESCRIPTION
The
.Fn sysdecode_sigcode
function returns a text description of the
.Fa si_code
field of the
.Vt siginfo_t
object associated with an instance of signal
.Fa sig .
The text description contains the name of the C macro whose value matches
.Fa si_code .
General purpose signal codes such as
.Dv SI_USER
are handled as well as signal-specific codes for
.Dv SIGBUS ,
.Dv SIGCHLD ,
.Dv SIGFPE ,
.Dv SIGILL ,
.Dv SIGSEGV
and
.Dv SIGTRAP .
If
.Fa si_code
does not represent a known signal code,
.Fn sysdecode_sigcode
returns
.Dv NULL .
.Sh RETURN VALUES
The
.Fn sysdecode_sigcode
function returns a pointer to a signal code description or
.Dv NULL
if
.Fa si_code
is not a known signal code.
.Sh SEE ALSO
.Xr sysdecode_sigbus_code 3 ,
.Xr sysdecode_sigchld_code 3 ,
.Xr sysdecode_sigfpe_code 3 ,
.Xr sysdecode_sigill_code 3 ,
.Xr sysdecode_sigsegv_code 3 ,
.Xr sysdecode_sigtrap_code 3
|
