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_sigcode 3 29.Os 30.Sh NAME 31.Nm sysdecode_sigcode 32.Nd lookup name of signal code 33.Sh LIBRARY 34.Lb libsysdecode 35.Sh SYNOPSIS 36.In sysdecode.h 37.Ft const char * 38.Fn sysdecode_sigcode "int signal" "int si_code" 39.Sh DESCRIPTION 40The 41.Fn sysdecode_sigcode 42function returns a text description of the 43.Fa si_code 44field of the 45.Vt siginfo_t 46object associated with an instance of signal 47.Fa sig . 48The text description contains the name of the C macro whose value matches 49.Fa si_code . 50General purpose signal codes such as 51.Dv SI_USER 52are handled as well as signal-specific codes for 53.Dv SIGBUS , 54.Dv SIGCHLD , 55.Dv SIGFPE , 56.Dv SIGILL , 57.Dv SIGSEGV 58and 59.Dv SIGTRAP . 60If 61.Fa si_code 62does not represent a known signal code, 63.Fn sysdecode_sigcode 64returns 65.Dv NULL . 66.Sh RETURN VALUES 67The 68.Fn sysdecode_sigcode 69function returns a pointer to a signal code description or 70.Dv NULL 71if 72.Fa si_code 73is not a known signal code. 74.Sh SEE ALSO 75.Xr sysdecode_sigbus_code 3 , 76.Xr sysdecode_sigchld_code 3 , 77.Xr sysdecode_sigfpe_code 3 , 78.Xr sysdecode_sigill_code 3 , 79.Xr sysdecode_sigsegv_code 3 , 80.Xr sysdecode_sigtrap_code 3 81