1/*	$NetBSD: del_property.c,v 1.1.1.3 2019/12/22 12:34:05 skrll Exp $	*/
2
3// SPDX-License-Identifier: LGPL-2.1-or-later
4/*
5 * libfdt - Flat Device Tree manipulation
6 *	Testcase for fdt_delprop()
7 * Copyright (C) 2006 David Gibson, IBM Corporation.
8 */
9
10#include <stdlib.h>
11#include <stdio.h>
12#include <string.h>
13#include <ctype.h>
14#include <stdint.h>
15
16#include <libfdt.h>
17
18#include "tests.h"
19#include "testdata.h"
20
21int main(int argc, char *argv[])
22{
23	void *fdt;
24	const uint32_t *intp;
25	const char *strp;
26	int err, lenerr;
27	int oldsize, delsize, newsize;
28
29	test_init(argc, argv);
30	fdt = load_blob_arg(argc, argv);
31
32	fdt = open_blob_rw(fdt);
33
34	oldsize = fdt_totalsize(fdt);
35
36	intp = check_getprop_cell(fdt, 0, "prop-int", TEST_VALUE_1);
37	verbose_printf("int value was 0x%08x\n", *intp);
38
39	err = fdt_delprop(fdt, 0, "prop-int");
40	if (err)
41		FAIL("Failed to delete \"prop-int\": %s", fdt_strerror(err));
42
43	intp = fdt_getprop(fdt, 0, "prop-int", &lenerr);
44	if (intp)
45		FAIL("prop-int still present after deletion");
46	if (lenerr != -FDT_ERR_NOTFOUND)
47		FAIL("Unexpected error on second getprop: %s",
48		     fdt_strerror(lenerr));
49
50	strp = check_getprop(fdt, 0, "prop-str", strlen(TEST_STRING_1)+1,
51			     TEST_STRING_1);
52	verbose_printf("string value was \"%s\"\n", strp);
53	err = fdt_delprop(fdt, 0, "prop-str");
54	if (err)
55		FAIL("Failed to delete \"prop-str\": %s", fdt_strerror(err));
56
57	strp = fdt_getprop(fdt, 0, "prop-str", &lenerr);
58	if (strp)
59		FAIL("prop-str still present after deletion");
60	if (lenerr != -FDT_ERR_NOTFOUND)
61		FAIL("Unexpected error on second getprop: %s",
62		     fdt_strerror(lenerr));
63
64	delsize = fdt_totalsize(fdt);
65
66	err = fdt_pack(fdt);
67	if (err)
68		FAIL("fdt_pack(): %s\n", fdt_strerror(err));
69
70	newsize = fdt_totalsize(fdt);
71
72	verbose_printf("oldsize = %d, delsize = %d, newsize = %d\n",
73		       oldsize, delsize, newsize);
74
75	if (newsize >= oldsize)
76		FAIL("Tree failed to shrink after deletions");
77
78	PASS();
79}
80