/*	$NetBSD: warn.c,v 1.4 2004/08/23 03:32:12 jlam Exp $	*/

/*
 * Copyright 1997-2000 Luke Mewburn <lukem@netbsd.org>.
 * Copyright 2014 Aleksey Cheusov <vle@gmx.net>.
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>

#include <mkc_progname.h>
#include <mkc_warn.h>

#if !HAVE_FUNC2_WARN_ERR_H
void warn (const char *fmt, ...)
{
	va_list	ap;
	int	sverrno;

	sverrno = errno;
	fprintf (stderr, "%s: ", getprogname ());
	va_start (ap, fmt);
	if (fmt != NULL) {
		vfprintf (stderr, fmt, ap);
		fprintf (stderr, ": ");
	}
	va_end (ap);
	fprintf (stderr, "%s\n", strerror (sverrno));
}
#endif

#if !HAVE_FUNC2_WARNX_ERR_H
void warnx (const char *fmt, ...)
{
	va_list	ap;

	fprintf (stderr, "%s: ", getprogname ());
	va_start (ap, fmt);
	if (fmt != NULL)
		vfprintf (stderr, fmt, ap);
	va_end (ap);
	fprintf (stderr, "\n");
}
#endif

#if !HAVE_FUNC2_VWARN_ERR_H
void vwarn (const char *fmt, va_list ap)
{
	int sverrno;

	sverrno = errno;
	fprintf (stderr, "%s: ", getprogname ());
	if (fmt != NULL) {
		vfprintf (stderr, fmt, ap);
		fprintf (stderr, ": ");
	}
	fprintf (stderr, "%s\n", strerror (sverrno));
}
#endif

#if !HAVE_FUNC2_VWARNX_ERR_H
void vwarnx (const char *fmt, va_list ap)
{
	fprintf (stderr, "%s: ", getprogname ());
	if (fmt != NULL)
		vfprintf (stderr, fmt, ap);
	fprintf (stderr, "\n");
}
#endif