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