1/*	$NetBSD: move_and_save.c,v 1.4 2019/12/22 12:38:24 skrll Exp $	*/
2
3// SPDX-License-Identifier: LGPL-2.1-or-later
4/*
5 * libfdt - Flat Device Tree manipulation
6 *	Basic testcase for read-only access
7 * Copyright (C) 2006 David Gibson, IBM Corporation.
8 */
9
10#include <stdlib.h>
11#include <stdio.h>
12#include <string.h>
13#include <limits.h>
14#include <stdint.h>
15
16#include <libfdt.h>
17
18#include "tests.h"
19#include "testdata.h"
20
21int main(int argc, char *argv[])
22{
23	void *fdt, *fdt1, *fdt2, *fdt3;
24	char *buf;
25	int shuntsize;
26	int bufsize;
27	int err;
28	const char *inname;
29	char outname[PATH_MAX];
30
31	test_init(argc, argv);
32	fdt = load_blob_arg(argc, argv);
33	inname = argv[1];
34
35	shuntsize = FDTALIGN2(fdt_totalsize(fdt) / 2, sizeof(uint64_t));
36	bufsize = fdt_totalsize(fdt) + shuntsize;
37	buf = xmalloc(bufsize);
38
39	fdt1 = buf;
40	err = fdt_move(fdt, fdt1, bufsize);
41	if (err)
42		FAIL("Failed to move tree into new buffer: %s",
43		     fdt_strerror(err));
44	sprintf(outname, "moved.%s", inname);
45	save_blob(outname, fdt1);
46
47	fdt2 = buf + shuntsize;
48	err = fdt_move(fdt1, fdt2, bufsize-shuntsize);
49	if (err)
50		FAIL("Failed to shunt tree %d bytes: %s",
51		     shuntsize, fdt_strerror(err));
52	sprintf(outname, "shunted.%s", inname);
53	save_blob(outname, fdt2);
54
55	fdt3 = buf;
56	err = fdt_move(fdt2, fdt3, bufsize);
57	if (err)
58		FAIL("Failed to deshunt tree %d bytes: %s",
59		     shuntsize, fdt_strerror(err));
60	sprintf(outname, "deshunted.%s", inname);
61	save_blob(outname, fdt3);
62
63	PASS();
64}
65