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15232239991

Committed 24 May 2025 08:01PM UTC coverage: 72.053% (-0.02%) from 72.07%

Build # 15232239991

Build Type

push

github

Committed by

web-flow

Commit Message

docs: add man pages for sd_device_enumerator_[new,ref,unref,unrefp] (#37586)

For #20929.

Coverage Stats

299160 of 415197 relevant lines covered (72.05%)

703671.29 hits per line

Source File
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93.33

/src/shared/clock-util.c

/* SPDX-License-Identifier: LGPL-2.1-or-later */

#include <stdio.h>
#include <sys/time.h>

#include "alloc-util.h"
#include "clock-util.h"
#include "fd-util.h"
#include "fileio.h"
#include "string-util.h"
#include "time-util.h"

int clock_is_localtime(const char *adjtime_path) {
        int r;

        if (!adjtime_path)
                adjtime_path = "/etc/adjtime";

        /*
         * The third line of adjtime is "UTC" or "LOCAL" or nothing.
         *   # /etc/adjtime
         *   0.0 0 0
         *   0
         *   UTC
         */
        _cleanup_fclose_ FILE *f = fopen(adjtime_path, "re");
        if (!f) {
                if (errno != ENOENT)
                        return -errno;

                /* adjtime_path not present → default to UTC */
                return false;
        }

        _cleanup_free_ char *line = NULL;
        for (unsigned i = 0; i < 2; i++) { /* skip the first two lines */
                r = read_line(f, LONG_LINE_MAX, NULL);
                if (r < 0)
                        return r;
                if (r == 0)
                        return false; /* less than three lines → default to UTC */
        }

        r = read_line(f, LONG_LINE_MAX, &line);
        if (r < 0)
                return r;
        if (r == 0)
                return false; /* less than three lines → default to UTC */

        return streq(line, "LOCAL");
}

int clock_set_timezone(int *ret_minutesdelta) {
        struct tm tm;
        int r;

        r = localtime_or_gmtime_usec(now(CLOCK_REALTIME), /* utc= */ false, &tm);
        if (r < 0)
                return r;

        int minutesdelta = tm.tm_gmtoff / 60;

        struct timezone tz = {
                .tz_minuteswest = -minutesdelta,
                .tz_dsttime = 0, /* DST_NONE */
        };

        /* If the RTC does not run in UTC but in local time, the very first call to settimeofday() will set
         * the kernel's timezone and will warp the system clock, so that it runs in UTC instead of the local
         * time we have read from the RTC. */
        if (settimeofday(NULL, &tz) < 0)
                return -errno;

        if (ret_minutesdelta)
                *ret_minutesdelta = minutesdelta;

        return 0;
}

1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3	#include <stdio.h>
4	#include <sys/time.h>
5
6	#include "alloc-util.h"
7	#include "clock-util.h"
8	#include "fd-util.h"
9	#include "fileio.h"
10	#include "string-util.h"
11	#include "time-util.h"
12
13	int clock_is_localtime(const char *adjtime_path) {	211✔
14	int r;	211✔
15
16	if (!adjtime_path)	211✔
17	adjtime_path = "/etc/adjtime";	201✔
18
19	/*
20	* The third line of adjtime is "UTC" or "LOCAL" or nothing.
21	* # /etc/adjtime
22	* 0.0 0 0
23	* 0
24	* UTC
25	*/
26	_cleanup_fclose_ FILE *f = fopen(adjtime_path, "re");	422✔
27	if (!f) {	211✔
28	if (errno != ENOENT)	202✔
29	return -errno;	×
30
31	/* adjtime_path not present → default to UTC */
32	return false;
33	}
34
35	_cleanup_free_ char *line = NULL;	9✔
36	for (unsigned i = 0; i < 2; i++) { /* skip the first two lines */	25✔
37	r = read_line(f, LONG_LINE_MAX, NULL);	18✔
38	if (r < 0)	18✔
39	return r;
40	if (r == 0)	18✔
41	return false; /* less than three lines → default to UTC */
42	}
43
44	r = read_line(f, LONG_LINE_MAX, &line);	7✔
45	if (r < 0)	7✔
46	return r;
47	if (r == 0)	7✔
48	return false; /* less than three lines → default to UTC */
49
50	return streq(line, "LOCAL");	5✔
51	}
52
53	int clock_set_timezone(int *ret_minutesdelta) {	25✔
54	struct tm tm;	25✔
55	int r;	25✔
56
57	r = localtime_or_gmtime_usec(now(CLOCK_REALTIME), /* utc= */ false, &tm);	25✔
58	if (r < 0)	25✔
59	return r;	25✔
60
61	int minutesdelta = tm.tm_gmtoff / 60;	25✔
62
63	struct timezone tz = {	25✔
64	.tz_minuteswest = -minutesdelta,	25✔
65	.tz_dsttime = 0, /* DST_NONE */
66	};
67
68	/* If the RTC does not run in UTC but in local time, the very first call to settimeofday() will set
69	* the kernel's timezone and will warp the system clock, so that it runs in UTC instead of the local
70	* time we have read from the RTC. */
71	if (settimeofday(NULL, &tz) < 0)	25✔
72	return -errno;	21✔
73
74	if (ret_minutesdelta)	4✔
75	*ret_minutesdelta = minutesdelta;	×
76
77	return 0;
78	}

systemd / systemd / 15232239991

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