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_sigcode 3 30.Os 31.Sh NAME 32.Nm sysdecode_sigcode 33.Nd lookup name of signal code 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_sigcode "int signal" "int si_code" 42.Sh DESCRIPTION 43The 44.Fn sysdecode_sigcode 45function returns a text description of the 46.Fa si_code 47field of the 48.Vt siginfo_t 49object associated with an instance of signal 50.Fa sig . 51The text description contains the name of the C macro whose value matches 52.Fa si_code . 53General purpose signal codes such as 54.Dv SI_USER 55are handled as well as signal-specific codes for 56.Dv SIGBUS , 57.Dv SIGCHLD , 58.Dv SIGFPE , 59.Dv SIGILL , 60.Dv SIGSEGV 61and 62.Dv SIGTRAP . 63If 64.Fa si_code 65does not represent a known signal code, 66.Fn sysdecode_sigcode 67returns 68.Dv NULL . 69.Sh RETURN VALUES 70The 71.Fn sysdecode_sigcode 72function returns a pointer to a signal code description or 73.Dv NULL 74if 75.Fa si_code 76is not a known signal code. 77.Sh SEE ALSO 78.Xr sysdecode_sigbus_code 3 , 79.Xr sysdecode_sigchld_code 3 , 80.Xr sysdecode_sigfpe_code 3 , 81.Xr sysdecode_sigill_code 3 , 82.Xr sysdecode_sigsegv_code 3 , 83.Xr sysdecode_sigtrap_code 3 84