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
main(int argc,char * argv[])21 int 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