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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