1/*
2 * libfdt - Flat Device Tree manipulation
3 *	Basic testcase for read-only access
4 * Copyright (C) 2006 David Gibson, IBM Corporation.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public License
8 * as published by the Free Software Foundation; either version 2.1 of
9 * the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include <stdlib.h>
22#include <stdio.h>
23#include <string.h>
24#include <limits.h>
25#include <stdint.h>
26
27#include <libfdt.h>
28
29#include "tests.h"
30#include "testdata.h"
31
32int main(int argc, char *argv[])
33{
34	void *fdt, *fdt1;
35	void *buf;
36	int oldsize, bufsize, packsize;
37	int err;
38	const char *inname;
39	char outname[PATH_MAX];
40
41	test_init(argc, argv);
42	fdt = load_blob_arg(argc, argv);
43	inname = argv[1];
44
45	oldsize = fdt_totalsize(fdt);
46
47	bufsize = oldsize * 2;
48
49	buf = xmalloc(bufsize);
50	/* don't leak uninitialized memory into our output */
51	memset(buf, 0, bufsize);
52
53	fdt1 = buf;
54	err = fdt_open_into(fdt, fdt1, bufsize);
55	if (err)
56		FAIL("fdt_open_into(): %s", fdt_strerror(err));
57	sprintf(outname, "opened.%s", inname);
58	save_blob(outname, fdt1);
59
60	err = fdt_pack(fdt1);
61	if (err)
62		FAIL("fdt_pack(): %s", fdt_strerror(err));
63	sprintf(outname, "repacked.%s", inname);
64	save_blob(outname, fdt1);
65
66	packsize = fdt_totalsize(fdt1);
67
68	verbose_printf("oldsize = %d, bufsize = %d, packsize = %d\n",
69		       oldsize, bufsize, packsize);
70	PASS();
71}
72