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.Dd October 17, 2016 26.Dt sysdecode_sigcode 3 27.Os 28.Sh NAME 29.Nm sysdecode_sigcode 30.Nd lookup name of signal code 31.Sh LIBRARY 32.Lb libsysdecode 33.Sh SYNOPSIS 34.In sysdecode.h 35.Ft const char * 36.Fn sysdecode_sigcode "int signal" "int si_code" 37.Sh DESCRIPTION 38The 39.Fn sysdecode_sigcode 40function returns a text description of the 41.Fa si_code 42field of the 43.Vt siginfo_t 44object associated with an instance of signal 45.Fa sig . 46The text description contains the name of the C macro whose value matches 47.Fa si_code . 48General purpose signal codes such as 49.Dv SI_USER 50are handled as well as signal-specific codes for 51.Dv SIGBUS , 52.Dv SIGCHLD , 53.Dv SIGFPE , 54.Dv SIGILL , 55.Dv SIGSEGV 56and 57.Dv SIGTRAP . 58If 59.Fa si_code 60does not represent a known signal code, 61.Fn sysdecode_sigcode 62returns 63.Dv NULL . 64.Sh RETURN VALUES 65The 66.Fn sysdecode_sigcode 67function returns a pointer to a signal code description or 68.Dv NULL 69if 70.Fa si_code 71is not a known signal code. 72.Sh SEE ALSO 73.Xr sysdecode_sigbus_code 3 , 74.Xr sysdecode_sigchld_code 3 , 75.Xr sysdecode_sigfpe_code 3 , 76.Xr sysdecode_sigill_code 3 , 77.Xr sysdecode_sigsegv_code 3 , 78.Xr sysdecode_sigtrap_code 3 79