1 /*
2 * Copyright (c) 2024, Meta
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <errno.h>
8
9 #include <zephyr/ztest.h>
10 #include <zephyr/posix/unistd.h>
11 #include <zephyr/sys/util.h>
12
ZTEST(posix_single_process,test_confstr)13 ZTEST(posix_single_process, test_confstr)
14 {
15 char buf[1];
16
17 /* degenerate cases */
18 {
19 struct arg {
20 int name;
21 char *buf;
22 size_t len;
23 };
24
25 const struct arg arg1s[] = {
26 {-1, NULL, 0},
27 {-1, NULL, sizeof(buf)},
28 {-1, buf, 0},
29 {-1, buf, sizeof(buf)},
30 };
31
32 const struct arg arg2s[] = {
33 {_CS_PATH, NULL, 0},
34 {_CS_PATH, buf, 0},
35 };
36
37 const struct arg arg3s[] = {
38 {_CS_PATH, NULL, sizeof(buf)},
39 };
40
41 ARRAY_FOR_EACH_PTR(arg1s, arg) {
42 errno = 0;
43 zassert_equal(0, confstr(arg->name, arg->buf, arg->len));
44 zassert_equal(errno, EINVAL);
45 }
46
47 ARRAY_FOR_EACH_PTR(arg2s, arg) {
48 errno = 0;
49 buf[0] = 0xff;
50 zassert_true(confstr(arg->name, arg->buf, arg->len) > 0);
51 zassert_equal(errno, 0);
52 zassert_equal((uint8_t)buf[0], 0xff);
53 }
54
55 ARRAY_FOR_EACH_PTR(arg3s, arg) {
56 errno = 0;
57 zassert_true(confstr(arg->name, arg->buf, arg->len) > 0);
58 zassert_equal(errno, 0);
59 }
60 }
61
62 buf[0] = 0xff;
63 zassert_true(confstr(_CS_PATH, buf, sizeof(buf) > 0));
64 zassert_equal(buf[0], '\0');
65 }
66
