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2.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org>
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25.\" $FreeBSD$
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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