glibc/string/strsignal.c

50 lines
1.5 KiB
C

/* Copyright (C) 1991, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <signal.h>
#include <stdio.h>
#include <string.h>
#ifndef HAVE_GNU_LD
#define _sys_siglist sys_siglist
#endif
/* Defined in siglist.c. */
extern const char *const _sys_siglist[];
/* Return a string describing the meaning of the signal number SIGNUM. */
char *
strsignal (int signum)
{
const char *desc;
if (signum < 0 || signum > NSIG || (desc = _sys_siglist[signum]) == NULL)
{
static char buf[512];
int len = __snprintf (buf, sizeof buf, _("Unknown signal %d"), signum);
if (len < 0)
return NULL;
buf[len - 1] = '\0';
return buf;
}
return (char *) _(desc);
}