glibc/string/strsignal.c

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/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#ifndef HAVE_GNU_LD
#define _sys_siglist sys_siglist
#endif
/* Defined in siglist.c. */
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extern CONST char *CONST _sys_siglist[];
/* Return a string describing the meaning of the signal number SIGNUM. */
char *
DEFUN(strsignal, (signum), int signum)
{
if (signum < 0 || signum > NSIG)
{
static char buf[512];
int len = __snprintf (buf, sizeof buf, _("Unknown signal %d"), signum);
if (len < 0)
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return NULL;
buf[len - 1] = '\0';
return buf;
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}
return (char *) _(_sys_siglist[signum]);
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}