1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2005 Poul-Henning Kamp
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#include <namespace.h>
32#include <stdio.h>
33#include <string.h>
34#include <stdlib.h>
35#include <wchar.h>
36#include <vis.h>
37#include <assert.h>
38#include <sys/time.h>
39#include "errlst.h"
40#include "printf.h"
41
42int
43__printf_arginfo_errno(const struct printf_info *pi __unused, size_t n, int *argt)
44{
45
46	assert(n >= 1);
47	argt[0] = PA_INT;
48	return (1);
49}
50
51int
52__printf_render_errno(struct __printf_io *io, const struct printf_info *pi __unused, const void *const *arg)
53{
54	int ret, error;
55	char buf[64];
56	const char *p;
57
58	ret = 0;
59	error = *((const int *)arg[0]);
60	if (error >= 0 && error < __hidden_sys_nerr) {
61		p = strerror(error);
62		return (__printf_out(io, pi, p, strlen(p)));
63	}
64	sprintf(buf, "errno=%d/0x%x", error, error);
65	ret += __printf_out(io, pi, buf, strlen(buf));
66	__printf_flush(io);
67	return(ret);
68}
69