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 <libfdt.h>
28
29 #include "tests.h"
30 #include "testdata.h"
31
main(int argc,char * argv[])32 int main(int argc, char *argv[])
33 {
34 void *fdt, *fdt1;
35 void *buf;
36 int oldsize, bufsize, packsize;
37 int err;
38 const char *inname;
39 char outname[PATH_MAX];
40
41 test_init(argc, argv);
42 fdt = load_blob_arg(argc, argv);
43 inname = argv[1];
44
45 oldsize = fdt_totalsize(fdt);
46
47 bufsize = oldsize * 2;
48
49 buf = xmalloc(bufsize);
50 /* don't leak uninitialized memory into our output */
51 memset(buf, 0, bufsize);
52
53 fdt1 = buf;
54 err = fdt_open_into(fdt, fdt1, bufsize);
55 if (err)
56 FAIL("fdt_open_into(): %s", fdt_strerror(err));
57 sprintf(outname, "opened.%s", inname);
58 save_blob(outname, fdt1);
59
60 err = fdt_pack(fdt1);
61 if (err)
62 FAIL("fdt_pack(): %s", fdt_strerror(err));
63 sprintf(outname, "repacked.%s", inname);
64 save_blob(outname, fdt1);
65
66 packsize = fdt_totalsize(fdt1);
67
68 verbose_printf("oldsize = %d, bufsize = %d, packsize = %d\n",
69 oldsize, bufsize, packsize);
70 PASS();
71 }
72