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, *fdt2, *fdt3;
35	char *buf;
36	int shuntsize;
37	int bufsize;
38	int err;
39	const char *inname;
40	char outname[PATH_MAX];
41
42	test_init(argc, argv);
43	fdt = load_blob_arg(argc, argv);
44	inname = argv[1];
45
46	shuntsize = ALIGN(fdt_totalsize(fdt) / 2, sizeof(uint64_t));
47	bufsize = fdt_totalsize(fdt) + shuntsize;
48	buf = xmalloc(bufsize);
49
50	fdt1 = buf;
51	err = fdt_move(fdt, fdt1, bufsize);
52	if (err)
53		FAIL("Failed to move tree into new buffer: %s",
54		     fdt_strerror(err));
55	sprintf(outname, "moved.%s", inname);
56	save_blob(outname, fdt1);
57
58	fdt2 = buf + shuntsize;
59	err = fdt_move(fdt1, fdt2, bufsize-shuntsize);
60	if (err)
61		FAIL("Failed to shunt tree %d bytes: %s",
62		     shuntsize, fdt_strerror(err));
63	sprintf(outname, "shunted.%s", inname);
64	save_blob(outname, fdt2);
65
66	fdt3 = buf;
67	err = fdt_move(fdt2, fdt3, bufsize);
68	if (err)
69		FAIL("Failed to deshunt tree %d bytes: %s",
70		     shuntsize, fdt_strerror(err));
71	sprintf(outname, "deshunted.%s", inname);
72	save_blob(outname, fdt3);
73
74	PASS();
75}
76