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 <fdt.h>

    28 #include <libfdt.h>

    29 

    30 #include "tests.h"

    31 #include "testdata.h"

    32 

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

    34 {

    35 	void *fdt, *fdt1;

    36 	void *buf;

    37 	int oldsize, bufsize, packsize;

    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 	oldsize = fdt_totalsize(fdt);

    47 

    48 	bufsize = oldsize * 2;

    49 

    50 	buf = xmalloc(bufsize);

    51 

    52 	fdt1 = buf;

    53 	err = fdt_open_into(fdt, fdt1, bufsize);

    54 	if (err)

    55 		FAIL("fdt_open_into(): %s", fdt_strerror(err));

    56 	sprintf(outname, "opened.%s", inname);

    57 	save_blob(outname, fdt1);

    58 

    59 	err = fdt_pack(fdt1);

    60 	if (err)

    61 		FAIL("fdt_pack(): %s", fdt_strerror(err));

    62 	sprintf(outname, "repacked.%s", inname);

    63 	save_blob(outname, fdt1);

    64 

    65 	packsize = fdt_totalsize(fdt1);

    66 

    67 	verbose_printf("oldsize = %d, bufsize = %d, packsize = %d\n",

    68 		       oldsize, bufsize, packsize);

    69 	PASS();

    70 }