platform_external_dtc/tests/check_full.c

// SPDX-License-Identifier: LGPL-2.1-or-later
/*
 * libfdt - Flat Device Tree manipulation
 *	Tests if two given dtbs are structurally equal (including order)
 * Copyright (C) 2007 David Gibson, IBM Corporation.
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>

#include <libfdt.h>

#include "tests.h"
#include "testdata.h"

static int expect_bad; /* = 0 */

int main(int argc, char *argv[])
{
	const char *filename;
	char *fdt;
	size_t len;
	int err;

	test_init(argc, argv);
	if ((argc != 2)
	    && ((argc != 3) || !streq(argv[1], "-n")))
		CONFIG("Usage: %s [-n] <dtb file>", argv[0]);
	if (argc == 3)
		expect_bad = 1;

	filename = argv[argc-1];
	err = utilfdt_read_err(filename, &fdt, &len);
	if (err)
		CONFIG("Couldn't open blob from \"%s\": %s",
		       filename, strerror(err));

	vg_prepare_blob(fdt, len);

	err = fdt_check_full(fdt, len);

	if (expect_bad && (err == 0))
		FAIL("fdt_check_full() succeeded unexpectedly");
	else if (!expect_bad && (err != 0))
		FAIL("fdt_check_full() failed: %s", fdt_strerror(err));

	PASS();
}