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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
6369641d | 2 | /*** |
6369641d | 3 | Copyright (C) 2016 Canonical Ltd. |
6369641d MP |
4 | ***/ |
5 | ||
6 | #include <unistd.h> | |
7 | #include <fcntl.h> | |
8 | ||
fe4f8fd1 ZJS |
9 | #include "clock-util.h" |
10 | #include "fd-util.h" | |
6369641d MP |
11 | #include "fileio.h" |
12 | #include "log.h" | |
fe4f8fd1 | 13 | #include "macro.h" |
6369641d MP |
14 | |
15 | static void test_clock_is_localtime(void) { | |
16 | char adjtime[] = "/tmp/test-adjtime.XXXXXX"; | |
07edd3b9 MP |
17 | int fd = -1; |
18 | _cleanup_fclose_ FILE* f = NULL; | |
6369641d | 19 | |
fe4f8fd1 | 20 | static const struct scenario { |
6369641d MP |
21 | const char* contents; |
22 | int expected_result; | |
23 | } scenarios[] = { | |
24 | /* adjtime configures UTC */ | |
25 | {"0.0 0 0\n0\nUTC\n", 0}, | |
26 | /* adjtime configures local time */ | |
27 | {"0.0 0 0\n0\nLOCAL\n", 1}, | |
28 | /* no final EOL */ | |
29 | {"0.0 0 0\n0\nUTC", 0}, | |
30 | {"0.0 0 0\n0\nLOCAL", 1}, | |
35f7216f MP |
31 | /* empty value -> defaults to UTC */ |
32 | {"0.0 0 0\n0\n", 0}, | |
6369641d MP |
33 | /* unknown value -> defaults to UTC */ |
34 | {"0.0 0 0\n0\nFOO\n", 0}, | |
35f7216f MP |
35 | /* no third line */ |
36 | {"0.0 0 0", 0}, | |
37 | {"0.0 0 0\n", 0}, | |
38 | {"0.0 0 0\n0", 0}, | |
6369641d MP |
39 | }; |
40 | ||
41 | /* without an adjtime file we default to UTC */ | |
42 | assert_se(clock_is_localtime("/nonexisting/adjtime") == 0); | |
43 | ||
646853bd | 44 | fd = mkostemp_safe(adjtime); |
d69d951b | 45 | assert_se(fd >= 0); |
6369641d MP |
46 | log_info("adjtime test file: %s", adjtime); |
47 | f = fdopen(fd, "w"); | |
d69d951b | 48 | assert_se(f); |
6369641d MP |
49 | |
50 | for (size_t i = 0; i < ELEMENTSOF(scenarios); ++i) { | |
51 | log_info("scenario #%zu:, expected result %i", i, scenarios[i].expected_result); | |
52 | log_info("%s", scenarios[i].contents); | |
53 | rewind(f); | |
54 | ftruncate(fd, 0); | |
b1837133 | 55 | assert_se(write_string_stream(f, scenarios[i].contents, WRITE_STRING_FILE_AVOID_NEWLINE) == 0); |
6369641d MP |
56 | assert_se(clock_is_localtime(adjtime) == scenarios[i].expected_result); |
57 | } | |
58 | ||
59 | unlink(adjtime); | |
60 | } | |
61 | ||
62 | /* Test with the real /etc/adjtime */ | |
63 | static void test_clock_is_localtime_system(void) { | |
64 | int r; | |
65 | r = clock_is_localtime(NULL); | |
66 | ||
67 | if (access("/etc/adjtime", F_OK) == 0) { | |
68 | log_info("/etc/adjtime exists, clock_is_localtime() == %i", r); | |
35f7216f MP |
69 | /* if /etc/adjtime exists we expect some answer, no error or |
70 | * crash */ | |
4c701096 | 71 | assert_se(IN_SET(r, 0, 1)); |
6369641d MP |
72 | } else |
73 | /* default is UTC if there is no /etc/adjtime */ | |
d69d951b | 74 | assert_se(r == 0); |
6369641d MP |
75 | } |
76 | ||
77 | int main(int argc, char *argv[]) { | |
78 | test_clock_is_localtime(); | |
79 | test_clock_is_localtime_system(); | |
80 | ||
81 | return 0; | |
82 | } |