/*

 * libfdt - Flat Device Tree manipulation

 *	Testcase for fdt_get_path()

 * Copyright (C) 2006 David Gibson, IBM Corporation.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public License

 * as published by the Free Software Foundation; either version 2.1 of

 * the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

 */

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <stdint.h>

#include <fdt.h>

#include <libfdt.h>

#include "tests.h"

#include "testdata.h"

#define POISON	('\xff')

void check_path_buf(void *fdt, const char *path, int pathlen, int buflen)

{

	int offset;

	char buf[buflen+1];

	int len;

	offset = fdt_path_offset(fdt, path);

	if (offset < 0)

		FAIL("Couldn't find path \"%s\": %s", path, fdt_strerror(offset));

	memset(buf, POISON, sizeof(buf)); /* poison the buffer */

	len = fdt_get_path(fdt, offset, buf, buflen);

	if (buflen <= pathlen) {

		if (len != -FDT_ERR_NOSPACE)

			FAIL("fdt_get_path([%d bytes]) returns %d with "

			     "insufficient buffer space", buflen, len);

	} else {

		if (len < 0)

			FAIL("fdt_get_path([%d bytes]): %s", buflen,

			     fdt_strerror(len));

		if (len != pathlen)

			FAIL("fdt_get_path([%d bytes]) reports length %d "

			     "instead of %d", buflen, len, pathlen);

		if (strcmp(buf, path) != 0)

			FAIL("fdt_get_path([%d bytes]) returns \"%s\" "

			     "instead of \"%s\"", buflen, buf, path);

	}

	if (buf[buflen] != POISON)

		FAIL("fdt_get_path([%d bytes]) overran buffer", buflen);

}

void check_path(void *fdt, const char *path)

{

	int pathlen = strlen(path);

	check_path_buf(fdt, path, pathlen, 1024);

	check_path_buf(fdt, path, pathlen, pathlen+1);

	check_path_buf(fdt, path, pathlen, pathlen);

}

int main(int argc, char *argv[])

{

	void *fdt;

	test_init(argc, argv);

	fdt = load_blob_arg(argc, argv);

	check_path(fdt, "/");

	check_path(fdt, "/subnode@1");

	check_path(fdt, "/subnode@2");

	check_path(fdt, "/subnode@1/subsubnode");

	check_path(fdt, "/subnode@2/subsubnode@0");

	PASS();

}