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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* libfdt - Flat Device Tree manipulation
* Basic testcase for read-only access
* Copyright (C) 2006 David Gibson, IBM Corporation.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <stdint.h>
#include <libfdt.h>
#include "tests.h"
#include "testdata.h"
int main(int argc, char *argv[])
{
void *fdt, *fdt1;
void *buf;
int oldsize, bufsize, packsize;
int err;
const char *inname;
char outname[PATH_MAX];
test_init(argc, argv);
fdt = load_blob_arg(argc, argv);
inname = argv[1];
oldsize = fdt_totalsize(fdt);
bufsize = oldsize * 2;
buf = xmalloc(bufsize);
/* don't leak uninitialized memory into our output */
memset(buf, 0, bufsize);
fdt1 = buf;
err = fdt_open_into(fdt, fdt1, bufsize);
if (err)
FAIL("fdt_open_into(): %s", fdt_strerror(err));
sprintf(outname, "opened.%s", inname);
save_blob(outname, fdt1);
err = fdt_pack(fdt1);
if (err)
FAIL("fdt_pack(): %s", fdt_strerror(err));
sprintf(outname, "repacked.%s", inname);
save_blob(outname, fdt1);
packsize = fdt_totalsize(fdt1);
verbose_printf("oldsize = %d, bufsize = %d, packsize = %d\n",
oldsize, bufsize, packsize);
PASS();
}
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