/*	$NetBSD: __strsignal.c,v 1.25 2012/03/20 17:44:18 matt Exp $	*/

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char *sccsid = "@(#)strerror.c	5.6 (Berkeley) 5/4/91";
#else
__RCSID("$NetBSD: __strsignal.c,v 1.25 2012/03/20 17:44:18 matt Exp $");
#endif
#endif /* LIBC_SCCS and not lint */

#include "namespace.h"
#ifdef NLS
#include <limits.h>
#include <nl_types.h>
#endif

#include <assert.h>
#include <stdio.h>
#include <string.h>
#include "extern.h"
#include <signal.h>
#ifndef SIGRTMIN	/* XXX: Until we remove the #ifdef _KERNEL */
#define SIGRTMIN	33
#define SIGRTMAX	63
#endif

/* ARGSUSED */
const char *
__strsignal(int num, char *buf, size_t buflen)
{
#define	UPREFIX	"Unknown signal: %u"
#define RPREFIX "Real time signal %u"
	unsigned int signum;

#ifdef NLS
	nl_catd catd ;
	catd = catopen("libc", NL_CAT_LOCALE);
#endif

	_DIAGASSERT(buf != NULL);

	signum = num;				/* convert to unsigned */
	if (signum < (unsigned int) sys_nsig) {
#ifdef NLS
		(void)strlcpy(buf, catgets(catd, 2, (int)signum,
		    sys_siglist[signum]), buflen); 
#else
		return((char *)sys_siglist[signum]);
#endif
	} else if (signum >= SIGRTMIN && signum <= SIGRTMAX) {
#ifdef NLS
		(void)snprintf(buf, buflen, 
	            catgets(catd, 2, SIGRTMIN, RPREFIX), signum);
#else
		(void)snprintf(buf, buflen, RPREFIX, signum);
#endif
	} else {
#ifdef NLS
		(void)snprintf(buf, buflen, 
	            catgets(catd, 1, 0xffff, UPREFIX), signum);
#else
		(void)snprintf(buf, buflen, UPREFIX, signum);
#endif
	}

#ifdef NLS
	catclose(catd);
#endif

	return buf;
}