1/*-
2 * Copyright (c) 2014 Juniper Networks, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <sys/stat.h>
31#include <errno.h>
32#include <string.h>
33
34#include "image.h"
35#include "format.h"
36
37static struct mkimg_format *first;
38static struct mkimg_format *format;
39
40struct mkimg_format *
41format_iterate(struct mkimg_format *f)
42{
43
44	return ((f == NULL) ? first : f->next);
45}
46
47void
48format_register(struct mkimg_format *f)
49{
50
51	f->next = first;
52	first = f;
53}
54
55int
56format_resize(lba_t end)
57{
58
59	if (format == NULL)
60		return (ENOSYS);
61	return (format->resize(end));
62}
63
64int
65format_select(const char *spec)
66{
67	struct mkimg_format *f;
68
69	f = NULL;
70	while ((f = format_iterate(f)) != NULL) {
71		if (strcasecmp(spec, f->name) == 0) {
72			format = f;
73			return (0);
74		}
75	}
76	return (EINVAL);
77}
78
79struct mkimg_format *
80format_selected(void)
81{
82
83	return (format);
84}
85
86int
87format_write(int fd)
88{
89	int error;
90
91	if (format == NULL)
92		return (ENOSYS);
93	error = format->write(fd);
94	return (error);
95}
96