1/*	$NetBSD: dprintf.c,v 1.1 2013/03/05 16:26:41 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2013 NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifdef HAVE_NBTOOL_CONFIG_H
33#include "nbtool_config.h"
34#endif
35
36#if !HAVE_DPRINTF
37#include <stdlib.h>
38#ifndef HAVE_NBTOOL_CONFIG_H
39/* These headers are required, but included from nbtool_config.h */
40#include <stdio.h>
41#include <stdarg.h>
42#include <unistd.h>
43#endif
44
45int
46dprintf(int fd, const char *fmt, ...)
47{
48	FILE *fp;
49	int e;
50	va_list ap;
51
52	if ((e = dup(fd)) == -1)
53		return -1;
54
55	if ((fp = fdopen(e, "r+")) == NULL) {
56		(void)close(e);
57		return -1;
58	}
59
60	va_start(ap, fmt);
61	e = vfprintf(fp, fmt, ap);
62	va_end(ap);
63
64	(void)fclose(fp);
65	return e;
66}
67
68#endif	/* HAVE_DPRINTF */
69
70#ifdef TEST
71int
72main(int argc, char *argv[])
73{
74	dprintf(1, "Hello %s\n", "world");
75	return 0;
76}
77#endif
78