.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
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.\" References consulted:
.\"     Linux libc source code
.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\"     386BSD man pages
.\" Modified Sat Jul 24 17:59:03 1993 by Rik Faith (faith@cs.unc.edu)
.TH STRSIGNAL 3  "8 February 1999" "GNU" "Linux Programmer's Manual"
.SH NAME
strsignal \- return string describing signal
.SH SYNOPSIS
.nf
.B #define _GNU_SOURCE
.br
.B #include <string.h>
.sp
.BI "char *strsignal(int " sig );
.sp
.BI "extern const char * const " sys_siglist [];
.fi
.SH DESCRIPTION
The \fBstrsignal()\fP function returns a string describing the signal
number passed in the argument \fIsig\fP.  The string can only be used
until the next call to \fBstrsignal()\fP.
.PP
The array \fIsys_siglist\fP holds the signal description strings
indexed by signal number.  The \fBstrsignal()\fP function should be
used if possible instead of this array.
.SH "RETURN VALUE"
The \fBstrsignal()\fP function returns the appropriate description
string, or an unknown signal message if the signal number is invalid.
On some systems (but not on Linux), a \fBNULL\fP pointer may be
returned instead for an invalid signal number.
.SH "CONFORMING TO"
This function is not part of any standard, but may be found on Linux
systems and some UNIX systems (such as Solaris).
.SH "SEE ALSO"
.BR psignal "(3), " strerror (3)