83 lines
2.5 KiB
Groff
83 lines
2.5 KiB
Groff
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.\"
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.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org>
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd October 17, 2016
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.Dt sysdecode_sigcode 3
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.Os
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.Sh NAME
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.Nm sysdecode_sigcode
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.Nd lookup name of signal code
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.Sh LIBRARY
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.Lb libsysdecode
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.Sh SYNOPSIS
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.In sys/types.h
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.In stdbool.h
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.In sysdecode.h
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.Ft const char *
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.Fn sysdecode_sigcode "int signal" "int si_code"
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.Sh DESCRIPTION
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The
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.Fn sysdecode_sigcode
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function returns a text description of the
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.Fa si_code
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field of the
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.Vt siginfo_t
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object associated with an instance of signal
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.Fa sig .
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The text description contains the name of the C macro whose value matches
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.Fa si_code .
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General purpose signal codes such as
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.Dv SI_USER
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are handled as well as signal-specific codes for
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.Dv SIGBUS ,
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.Dv SIGCHLD ,
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.Dv SIGFPE ,
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.Dv SIGILL ,
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.Dv SIGSEGV
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and
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.Dv SIGTRAP .
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If
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.Fa si_code
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does not represent a known signal code,
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.Fn sysdecode_sigcode
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returns
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.Dv NULL .
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.Sh RETURN VALUES
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The
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.Fn sysdecode_sigcode
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function returns a pointer to a signal code description or
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.Dv NULL
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if
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.Fa si_code
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is not a known signal code.
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.Sh SEE ALSO
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.Xr sysdecode_sigbus_code 3 ,
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.Xr sysdecode_sigchld_code 3 ,
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.Xr sysdecode_sigfpe_code 3 ,
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.Xr sysdecode_sigill_code 3 ,
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.Xr sysdecode_sigsegv_code 3 ,
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.Xr sysdecode_sigtrap_code 3
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