11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright (C) 2016 Canonical Ltd.
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***/
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#include <unistd.h>
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#include <fcntl.h>
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#include "clock-util.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "log.h"
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#include "macro.h"
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static void test_clock_is_localtime(void) {
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char adjtime[] = "/tmp/test-adjtime.XXXXXX";
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int fd = -1;
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_cleanup_fclose_ FILE* f = NULL;
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static const struct scenario {
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const char* contents;
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int expected_result;
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} scenarios[] = {
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/* adjtime configures UTC */
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{"0.0 0 0\n0\nUTC\n", 0},
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/* adjtime configures local time */
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{"0.0 0 0\n0\nLOCAL\n", 1},
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/* no final EOL */
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{"0.0 0 0\n0\nUTC", 0},
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{"0.0 0 0\n0\nLOCAL", 1},
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/* empty value -> defaults to UTC */
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{"0.0 0 0\n0\n", 0},
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/* unknown value -> defaults to UTC */
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{"0.0 0 0\n0\nFOO\n", 0},
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/* no third line */
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{"0.0 0 0", 0},
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{"0.0 0 0\n", 0},
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{"0.0 0 0\n0", 0},
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};
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/* without an adjtime file we default to UTC */
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assert_se(clock_is_localtime("/nonexisting/adjtime") == 0);
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fd = mkostemp_safe(adjtime);
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assert_se(fd >= 0);
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log_info("adjtime test file: %s", adjtime);
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f = fdopen(fd, "w");
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assert_se(f);
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for (size_t i = 0; i < ELEMENTSOF(scenarios); ++i) {
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log_info("scenario #%zu:, expected result %i", i, scenarios[i].expected_result);
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log_info("%s", scenarios[i].contents);
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rewind(f);
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ftruncate(fd, 0);
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assert_se(write_string_stream(f, scenarios[i].contents, WRITE_STRING_FILE_AVOID_NEWLINE) == 0);
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assert_se(clock_is_localtime(adjtime) == scenarios[i].expected_result);
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}
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unlink(adjtime);
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}
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/* Test with the real /etc/adjtime */
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static void test_clock_is_localtime_system(void) {
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int r;
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r = clock_is_localtime(NULL);
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if (access("/etc/adjtime", F_OK) == 0) {
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log_info("/etc/adjtime exists, clock_is_localtime() == %i", r);
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/* if /etc/adjtime exists we expect some answer, no error or
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* crash */
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assert_se(IN_SET(r, 0, 1));
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} else
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/* default is UTC if there is no /etc/adjtime */
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assert_se(r == 0);
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}
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int main(int argc, char *argv[]) {
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test_clock_is_localtime();
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test_clock_is_localtime_system();
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return 0;
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}
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