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9a98c7a1 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <time.h> | |
23 | #include <string.h> | |
03cc26dd | 24 | #include <sys/timex.h> |
77ff2de9 | 25 | #include <sys/timerfd.h> |
9a98c7a1 LP |
26 | |
27 | #include "util.h" | |
28 | #include "time-util.h" | |
75683450 | 29 | #include "strv.h" |
9a98c7a1 LP |
30 | |
31 | usec_t now(clockid_t clock_id) { | |
32 | struct timespec ts; | |
33 | ||
34 | assert_se(clock_gettime(clock_id, &ts) == 0); | |
35 | ||
36 | return timespec_load(&ts); | |
37 | } | |
38 | ||
39 | dual_timestamp* dual_timestamp_get(dual_timestamp *ts) { | |
40 | assert(ts); | |
41 | ||
42 | ts->realtime = now(CLOCK_REALTIME); | |
43 | ts->monotonic = now(CLOCK_MONOTONIC); | |
44 | ||
45 | return ts; | |
46 | } | |
47 | ||
48 | dual_timestamp* dual_timestamp_from_realtime(dual_timestamp *ts, usec_t u) { | |
49 | int64_t delta; | |
50 | assert(ts); | |
51 | ||
3a43da28 KS |
52 | if (u == USEC_INFINITY) { |
53 | ts->realtime = ts->monotonic = USEC_INFINITY; | |
cae0c5e0 LP |
54 | return ts; |
55 | } | |
56 | ||
9a98c7a1 LP |
57 | ts->realtime = u; |
58 | ||
59 | if (u == 0) | |
60 | ts->monotonic = 0; | |
61 | else { | |
62 | delta = (int64_t) now(CLOCK_REALTIME) - (int64_t) u; | |
63 | ||
64 | ts->monotonic = now(CLOCK_MONOTONIC); | |
65 | ||
66 | if ((int64_t) ts->monotonic > delta) | |
67 | ts->monotonic -= delta; | |
68 | else | |
69 | ts->monotonic = 0; | |
70 | } | |
71 | ||
72 | return ts; | |
73 | } | |
74 | ||
cae0c5e0 LP |
75 | dual_timestamp* dual_timestamp_from_monotonic(dual_timestamp *ts, usec_t u) { |
76 | int64_t delta; | |
77 | assert(ts); | |
78 | ||
3a43da28 KS |
79 | if (u == USEC_INFINITY) { |
80 | ts->realtime = ts->monotonic = USEC_INFINITY; | |
cae0c5e0 LP |
81 | return ts; |
82 | } | |
83 | ||
84 | ts->monotonic = u; | |
85 | delta = (int64_t) now(CLOCK_MONOTONIC) - (int64_t) u; | |
86 | ||
87 | ts->realtime = now(CLOCK_REALTIME); | |
88 | if ((int64_t) ts->realtime > delta) | |
89 | ts->realtime -= delta; | |
90 | else | |
91 | ts->realtime = 0; | |
92 | ||
93 | return ts; | |
94 | } | |
95 | ||
9a98c7a1 LP |
96 | usec_t timespec_load(const struct timespec *ts) { |
97 | assert(ts); | |
98 | ||
99 | if (ts->tv_sec == (time_t) -1 && | |
100 | ts->tv_nsec == (long) -1) | |
3a43da28 | 101 | return USEC_INFINITY; |
9a98c7a1 LP |
102 | |
103 | if ((usec_t) ts->tv_sec > (UINT64_MAX - (ts->tv_nsec / NSEC_PER_USEC)) / USEC_PER_SEC) | |
3a43da28 | 104 | return USEC_INFINITY; |
9a98c7a1 LP |
105 | |
106 | return | |
107 | (usec_t) ts->tv_sec * USEC_PER_SEC + | |
108 | (usec_t) ts->tv_nsec / NSEC_PER_USEC; | |
109 | } | |
110 | ||
111 | struct timespec *timespec_store(struct timespec *ts, usec_t u) { | |
112 | assert(ts); | |
113 | ||
3a43da28 | 114 | if (u == USEC_INFINITY) { |
9a98c7a1 LP |
115 | ts->tv_sec = (time_t) -1; |
116 | ts->tv_nsec = (long) -1; | |
117 | return ts; | |
118 | } | |
119 | ||
120 | ts->tv_sec = (time_t) (u / USEC_PER_SEC); | |
121 | ts->tv_nsec = (long int) ((u % USEC_PER_SEC) * NSEC_PER_USEC); | |
122 | ||
123 | return ts; | |
124 | } | |
125 | ||
126 | usec_t timeval_load(const struct timeval *tv) { | |
127 | assert(tv); | |
128 | ||
129 | if (tv->tv_sec == (time_t) -1 && | |
130 | tv->tv_usec == (suseconds_t) -1) | |
3a43da28 | 131 | return USEC_INFINITY; |
9a98c7a1 LP |
132 | |
133 | if ((usec_t) tv->tv_sec > (UINT64_MAX - tv->tv_usec) / USEC_PER_SEC) | |
3a43da28 | 134 | return USEC_INFINITY; |
9a98c7a1 LP |
135 | |
136 | return | |
137 | (usec_t) tv->tv_sec * USEC_PER_SEC + | |
138 | (usec_t) tv->tv_usec; | |
139 | } | |
140 | ||
141 | struct timeval *timeval_store(struct timeval *tv, usec_t u) { | |
142 | assert(tv); | |
143 | ||
3a43da28 | 144 | if (u == USEC_INFINITY) { |
9a98c7a1 LP |
145 | tv->tv_sec = (time_t) -1; |
146 | tv->tv_usec = (suseconds_t) -1; | |
4d89874a ZJS |
147 | } else { |
148 | tv->tv_sec = (time_t) (u / USEC_PER_SEC); | |
149 | tv->tv_usec = (suseconds_t) (u % USEC_PER_SEC); | |
9a98c7a1 LP |
150 | } |
151 | ||
9a98c7a1 LP |
152 | return tv; |
153 | } | |
154 | ||
a62e83b4 | 155 | char *format_timestamp_internal(char *buf, size_t l, usec_t t, bool utc) { |
9a98c7a1 LP |
156 | struct tm tm; |
157 | time_t sec; | |
158 | ||
159 | assert(buf); | |
160 | assert(l > 0); | |
161 | ||
3a43da28 | 162 | if (t <= 0 || t == USEC_INFINITY) |
9a98c7a1 LP |
163 | return NULL; |
164 | ||
165 | sec = (time_t) (t / USEC_PER_SEC); | |
166 | ||
a62e83b4 JS |
167 | if (utc) |
168 | gmtime_r(&sec, &tm); | |
169 | else | |
170 | localtime_r(&sec, &tm); | |
171 | if (strftime(buf, l, "%a %Y-%m-%d %H:%M:%S %Z", &tm) <= 0) | |
9a98c7a1 LP |
172 | return NULL; |
173 | ||
174 | return buf; | |
175 | } | |
176 | ||
a62e83b4 JS |
177 | char *format_timestamp(char *buf, size_t l, usec_t t) { |
178 | return format_timestamp_internal(buf, l, t, false); | |
179 | } | |
180 | ||
181 | char *format_timestamp_us(char *buf, size_t l, usec_t t, bool utc) { | |
f02d8367 ZJS |
182 | struct tm tm; |
183 | time_t sec; | |
184 | ||
185 | assert(buf); | |
186 | assert(l > 0); | |
187 | ||
3a43da28 | 188 | if (t <= 0 || t == USEC_INFINITY) |
f02d8367 ZJS |
189 | return NULL; |
190 | ||
191 | sec = (time_t) (t / USEC_PER_SEC); | |
a62e83b4 JS |
192 | if (utc) |
193 | gmtime_r(&sec, &tm); | |
194 | else | |
195 | localtime_r(&sec, &tm); | |
f02d8367 ZJS |
196 | |
197 | if (strftime(buf, l, "%a %Y-%m-%d %H:%M:%S", &tm) <= 0) | |
198 | return NULL; | |
609e002e | 199 | snprintf(buf + strlen(buf), l - strlen(buf), ".%06llu", (unsigned long long) (t % USEC_PER_SEC)); |
f02d8367 ZJS |
200 | if (strftime(buf + strlen(buf), l - strlen(buf), " %Z", &tm) <= 0) |
201 | return NULL; | |
202 | ||
203 | return buf; | |
204 | } | |
205 | ||
bbb8486e | 206 | char *format_timestamp_relative(char *buf, size_t l, usec_t t) { |
1fcf71f5 | 207 | const char *s; |
9a98c7a1 LP |
208 | usec_t n, d; |
209 | ||
210 | n = now(CLOCK_REALTIME); | |
211 | ||
3a43da28 | 212 | if (t <= 0 || (t == USEC_INFINITY)) |
9a98c7a1 LP |
213 | return NULL; |
214 | ||
1fcf71f5 LP |
215 | if (n > t) { |
216 | d = n - t; | |
217 | s = "ago"; | |
218 | } else { | |
219 | d = t - n; | |
220 | s = "left"; | |
221 | } | |
9a98c7a1 LP |
222 | |
223 | if (d >= USEC_PER_YEAR) | |
609e002e | 224 | snprintf(buf, l, USEC_FMT " years " USEC_FMT " months %s", |
de0671ee ZJS |
225 | d / USEC_PER_YEAR, |
226 | (d % USEC_PER_YEAR) / USEC_PER_MONTH, s); | |
9a98c7a1 | 227 | else if (d >= USEC_PER_MONTH) |
609e002e | 228 | snprintf(buf, l, USEC_FMT " months " USEC_FMT " days %s", |
de0671ee ZJS |
229 | d / USEC_PER_MONTH, |
230 | (d % USEC_PER_MONTH) / USEC_PER_DAY, s); | |
9a98c7a1 | 231 | else if (d >= USEC_PER_WEEK) |
609e002e | 232 | snprintf(buf, l, USEC_FMT " weeks " USEC_FMT " days %s", |
de0671ee ZJS |
233 | d / USEC_PER_WEEK, |
234 | (d % USEC_PER_WEEK) / USEC_PER_DAY, s); | |
9a98c7a1 | 235 | else if (d >= 2*USEC_PER_DAY) |
609e002e | 236 | snprintf(buf, l, USEC_FMT " days %s", d / USEC_PER_DAY, s); |
9a98c7a1 | 237 | else if (d >= 25*USEC_PER_HOUR) |
609e002e | 238 | snprintf(buf, l, "1 day " USEC_FMT "h %s", |
de0671ee | 239 | (d - USEC_PER_DAY) / USEC_PER_HOUR, s); |
9a98c7a1 | 240 | else if (d >= 6*USEC_PER_HOUR) |
609e002e | 241 | snprintf(buf, l, USEC_FMT "h %s", |
de0671ee | 242 | d / USEC_PER_HOUR, s); |
9a98c7a1 | 243 | else if (d >= USEC_PER_HOUR) |
609e002e | 244 | snprintf(buf, l, USEC_FMT "h " USEC_FMT "min %s", |
de0671ee ZJS |
245 | d / USEC_PER_HOUR, |
246 | (d % USEC_PER_HOUR) / USEC_PER_MINUTE, s); | |
9a98c7a1 | 247 | else if (d >= 5*USEC_PER_MINUTE) |
609e002e | 248 | snprintf(buf, l, USEC_FMT "min %s", |
de0671ee | 249 | d / USEC_PER_MINUTE, s); |
9a98c7a1 | 250 | else if (d >= USEC_PER_MINUTE) |
609e002e | 251 | snprintf(buf, l, USEC_FMT "min " USEC_FMT "s %s", |
de0671ee ZJS |
252 | d / USEC_PER_MINUTE, |
253 | (d % USEC_PER_MINUTE) / USEC_PER_SEC, s); | |
9a98c7a1 | 254 | else if (d >= USEC_PER_SEC) |
609e002e | 255 | snprintf(buf, l, USEC_FMT "s %s", |
de0671ee | 256 | d / USEC_PER_SEC, s); |
9a98c7a1 | 257 | else if (d >= USEC_PER_MSEC) |
609e002e | 258 | snprintf(buf, l, USEC_FMT "ms %s", |
de0671ee | 259 | d / USEC_PER_MSEC, s); |
9a98c7a1 | 260 | else if (d > 0) |
de0671ee ZJS |
261 | snprintf(buf, l, USEC_FMT"us %s", |
262 | d, s); | |
9a98c7a1 LP |
263 | else |
264 | snprintf(buf, l, "now"); | |
265 | ||
266 | buf[l-1] = 0; | |
267 | return buf; | |
268 | } | |
269 | ||
2fa4092c | 270 | char *format_timespan(char *buf, size_t l, usec_t t, usec_t accuracy) { |
9a98c7a1 LP |
271 | static const struct { |
272 | const char *suffix; | |
273 | usec_t usec; | |
274 | } table[] = { | |
b719810d LP |
275 | { "y", USEC_PER_YEAR }, |
276 | { "month", USEC_PER_MONTH }, | |
9a98c7a1 LP |
277 | { "w", USEC_PER_WEEK }, |
278 | { "d", USEC_PER_DAY }, | |
279 | { "h", USEC_PER_HOUR }, | |
280 | { "min", USEC_PER_MINUTE }, | |
281 | { "s", USEC_PER_SEC }, | |
282 | { "ms", USEC_PER_MSEC }, | |
283 | { "us", 1 }, | |
284 | }; | |
285 | ||
286 | unsigned i; | |
287 | char *p = buf; | |
2fa4092c | 288 | bool something = false; |
9a98c7a1 LP |
289 | |
290 | assert(buf); | |
291 | assert(l > 0); | |
292 | ||
b1d6dcf5 ZJS |
293 | if (t == USEC_INFINITY || t <= 0) { |
294 | strncpy(p, t == USEC_INFINITY ? "infinity" : "0", l); | |
7c537b2e LP |
295 | p[l-1] = 0; |
296 | return p; | |
297 | } | |
298 | ||
7f602784 | 299 | /* The result of this function can be parsed with parse_sec */ |
9a98c7a1 LP |
300 | |
301 | for (i = 0; i < ELEMENTSOF(table); i++) { | |
7759ecb2 | 302 | int k = 0; |
9a98c7a1 | 303 | size_t n; |
2fa4092c LP |
304 | bool done = false; |
305 | usec_t a, b; | |
306 | ||
7c537b2e LP |
307 | if (t <= 0) |
308 | break; | |
2fa4092c | 309 | |
7c537b2e | 310 | if (t < accuracy && something) |
2fa4092c | 311 | break; |
9a98c7a1 LP |
312 | |
313 | if (t < table[i].usec) | |
314 | continue; | |
315 | ||
316 | if (l <= 1) | |
317 | break; | |
318 | ||
2fa4092c LP |
319 | a = t / table[i].usec; |
320 | b = t % table[i].usec; | |
321 | ||
322 | /* Let's see if we should shows this in dot notation */ | |
323 | if (t < USEC_PER_MINUTE && b > 0) { | |
324 | usec_t cc; | |
325 | int j; | |
326 | ||
327 | j = 0; | |
328 | for (cc = table[i].usec; cc > 1; cc /= 10) | |
329 | j++; | |
330 | ||
331 | for (cc = accuracy; cc > 1; cc /= 10) { | |
332 | b /= 10; | |
333 | j--; | |
334 | } | |
335 | ||
336 | if (j > 0) { | |
337 | k = snprintf(p, l, | |
de0671ee | 338 | "%s"USEC_FMT".%0*llu%s", |
2fa4092c | 339 | p > buf ? " " : "", |
de0671ee | 340 | a, |
2fa4092c LP |
341 | j, |
342 | (unsigned long long) b, | |
343 | table[i].suffix); | |
344 | ||
345 | t = 0; | |
346 | done = true; | |
347 | } | |
348 | } | |
349 | ||
350 | /* No? Then let's show it normally */ | |
351 | if (!done) { | |
352 | k = snprintf(p, l, | |
de0671ee | 353 | "%s"USEC_FMT"%s", |
2fa4092c | 354 | p > buf ? " " : "", |
de0671ee | 355 | a, |
2fa4092c LP |
356 | table[i].suffix); |
357 | ||
358 | t = b; | |
359 | } | |
360 | ||
9a98c7a1 LP |
361 | n = MIN((size_t) k, l); |
362 | ||
363 | l -= n; | |
364 | p += n; | |
365 | ||
2fa4092c | 366 | something = true; |
9a98c7a1 LP |
367 | } |
368 | ||
369 | *p = 0; | |
370 | ||
371 | return buf; | |
372 | } | |
373 | ||
374 | void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t) { | |
375 | ||
376 | assert(f); | |
377 | assert(name); | |
378 | assert(t); | |
379 | ||
380 | if (!dual_timestamp_is_set(t)) | |
381 | return; | |
382 | ||
de0671ee | 383 | fprintf(f, "%s="USEC_FMT" "USEC_FMT"\n", |
9a98c7a1 | 384 | name, |
de0671ee ZJS |
385 | t->realtime, |
386 | t->monotonic); | |
9a98c7a1 LP |
387 | } |
388 | ||
389 | void dual_timestamp_deserialize(const char *value, dual_timestamp *t) { | |
390 | unsigned long long a, b; | |
391 | ||
392 | assert(value); | |
393 | assert(t); | |
394 | ||
b5dd8148 | 395 | if (sscanf(value, "%llu %llu", &a, &b) != 2) |
9a98c7a1 LP |
396 | log_debug("Failed to parse finish timestamp value %s", value); |
397 | else { | |
398 | t->realtime = a; | |
399 | t->monotonic = b; | |
400 | } | |
401 | } | |
402 | ||
403 | int parse_timestamp(const char *t, usec_t *usec) { | |
92134489 LP |
404 | static const struct { |
405 | const char *name; | |
406 | const int nr; | |
407 | } day_nr[] = { | |
408 | { "Sunday", 0 }, | |
409 | { "Sun", 0 }, | |
410 | { "Monday", 1 }, | |
411 | { "Mon", 1 }, | |
412 | { "Tuesday", 2 }, | |
413 | { "Tue", 2 }, | |
414 | { "Wednesday", 3 }, | |
415 | { "Wed", 3 }, | |
416 | { "Thursday", 4 }, | |
417 | { "Thu", 4 }, | |
418 | { "Friday", 5 }, | |
419 | { "Fri", 5 }, | |
420 | { "Saturday", 6 }, | |
421 | { "Sat", 6 }, | |
422 | }; | |
423 | ||
9a98c7a1 LP |
424 | const char *k; |
425 | struct tm tm, copy; | |
426 | time_t x; | |
427 | usec_t plus = 0, minus = 0, ret; | |
92134489 LP |
428 | int r, weekday = -1; |
429 | unsigned i; | |
9a98c7a1 LP |
430 | |
431 | /* | |
432 | * Allowed syntaxes: | |
433 | * | |
434 | * 2012-09-22 16:34:22 | |
435 | * 2012-09-22 16:34 (seconds will be set to 0) | |
436 | * 2012-09-22 (time will be set to 00:00:00) | |
437 | * 16:34:22 (date will be set to today) | |
438 | * 16:34 (date will be set to today, seconds to 0) | |
439 | * now | |
440 | * yesterday (time is set to 00:00:00) | |
441 | * today (time is set to 00:00:00) | |
442 | * tomorrow (time is set to 00:00:00) | |
443 | * +5min | |
444 | * -5days | |
5ba6e094 | 445 | * @2147483647 (seconds since epoch) |
9a98c7a1 LP |
446 | * |
447 | */ | |
448 | ||
449 | assert(t); | |
450 | assert(usec); | |
451 | ||
452 | x = time(NULL); | |
453 | assert_se(localtime_r(&x, &tm)); | |
6a741b4a | 454 | tm.tm_isdst = -1; |
9a98c7a1 LP |
455 | |
456 | if (streq(t, "now")) | |
457 | goto finish; | |
458 | ||
459 | else if (streq(t, "today")) { | |
460 | tm.tm_sec = tm.tm_min = tm.tm_hour = 0; | |
461 | goto finish; | |
462 | ||
463 | } else if (streq(t, "yesterday")) { | |
464 | tm.tm_mday --; | |
465 | tm.tm_sec = tm.tm_min = tm.tm_hour = 0; | |
466 | goto finish; | |
467 | ||
468 | } else if (streq(t, "tomorrow")) { | |
469 | tm.tm_mday ++; | |
470 | tm.tm_sec = tm.tm_min = tm.tm_hour = 0; | |
471 | goto finish; | |
472 | ||
473 | } else if (t[0] == '+') { | |
7f602784 | 474 | r = parse_sec(t+1, &plus); |
9a98c7a1 LP |
475 | if (r < 0) |
476 | return r; | |
477 | ||
478 | goto finish; | |
9a98c7a1 | 479 | |
5ba6e094 | 480 | } else if (t[0] == '-') { |
7f602784 | 481 | r = parse_sec(t+1, &minus); |
9a98c7a1 LP |
482 | if (r < 0) |
483 | return r; | |
484 | ||
485 | goto finish; | |
decad910 | 486 | |
5ba6e094 LP |
487 | } else if (t[0] == '@') |
488 | return parse_sec(t + 1, usec); | |
489 | ||
490 | else if (endswith(t, " ago")) { | |
decad910 LP |
491 | _cleanup_free_ char *z; |
492 | ||
493 | z = strndup(t, strlen(t) - 4); | |
494 | if (!z) | |
495 | return -ENOMEM; | |
496 | ||
7f602784 | 497 | r = parse_sec(z, &minus); |
decad910 LP |
498 | if (r < 0) |
499 | return r; | |
500 | ||
1fcf71f5 LP |
501 | goto finish; |
502 | } else if (endswith(t, " left")) { | |
503 | _cleanup_free_ char *z; | |
504 | ||
505 | z = strndup(t, strlen(t) - 4); | |
506 | if (!z) | |
507 | return -ENOMEM; | |
508 | ||
509 | r = parse_sec(z, &plus); | |
510 | if (r < 0) | |
511 | return r; | |
512 | ||
decad910 | 513 | goto finish; |
9a98c7a1 LP |
514 | } |
515 | ||
92134489 LP |
516 | for (i = 0; i < ELEMENTSOF(day_nr); i++) { |
517 | size_t skip; | |
518 | ||
519 | if (!startswith_no_case(t, day_nr[i].name)) | |
520 | continue; | |
521 | ||
522 | skip = strlen(day_nr[i].name); | |
523 | if (t[skip] != ' ') | |
524 | continue; | |
525 | ||
526 | weekday = day_nr[i].nr; | |
527 | t += skip + 1; | |
528 | break; | |
529 | } | |
530 | ||
9a98c7a1 LP |
531 | copy = tm; |
532 | k = strptime(t, "%y-%m-%d %H:%M:%S", &tm); | |
533 | if (k && *k == 0) | |
534 | goto finish; | |
535 | ||
536 | tm = copy; | |
537 | k = strptime(t, "%Y-%m-%d %H:%M:%S", &tm); | |
538 | if (k && *k == 0) | |
539 | goto finish; | |
540 | ||
541 | tm = copy; | |
542 | k = strptime(t, "%y-%m-%d %H:%M", &tm); | |
543 | if (k && *k == 0) { | |
544 | tm.tm_sec = 0; | |
545 | goto finish; | |
546 | } | |
547 | ||
548 | tm = copy; | |
549 | k = strptime(t, "%Y-%m-%d %H:%M", &tm); | |
550 | if (k && *k == 0) { | |
551 | tm.tm_sec = 0; | |
552 | goto finish; | |
553 | } | |
554 | ||
555 | tm = copy; | |
556 | k = strptime(t, "%y-%m-%d", &tm); | |
557 | if (k && *k == 0) { | |
558 | tm.tm_sec = tm.tm_min = tm.tm_hour = 0; | |
559 | goto finish; | |
560 | } | |
561 | ||
562 | tm = copy; | |
563 | k = strptime(t, "%Y-%m-%d", &tm); | |
564 | if (k && *k == 0) { | |
565 | tm.tm_sec = tm.tm_min = tm.tm_hour = 0; | |
566 | goto finish; | |
567 | } | |
568 | ||
569 | tm = copy; | |
570 | k = strptime(t, "%H:%M:%S", &tm); | |
571 | if (k && *k == 0) | |
572 | goto finish; | |
573 | ||
574 | tm = copy; | |
575 | k = strptime(t, "%H:%M", &tm); | |
576 | if (k && *k == 0) { | |
577 | tm.tm_sec = 0; | |
578 | goto finish; | |
579 | } | |
580 | ||
581 | return -EINVAL; | |
582 | ||
583 | finish: | |
584 | x = mktime(&tm); | |
585 | if (x == (time_t) -1) | |
586 | return -EINVAL; | |
587 | ||
92134489 LP |
588 | if (weekday >= 0 && tm.tm_wday != weekday) |
589 | return -EINVAL; | |
590 | ||
9a98c7a1 LP |
591 | ret = (usec_t) x * USEC_PER_SEC; |
592 | ||
593 | ret += plus; | |
594 | if (ret > minus) | |
595 | ret -= minus; | |
596 | else | |
597 | ret = 0; | |
598 | ||
599 | *usec = ret; | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
7f602784 | 604 | int parse_sec(const char *t, usec_t *usec) { |
9a98c7a1 LP |
605 | static const struct { |
606 | const char *suffix; | |
607 | usec_t usec; | |
608 | } table[] = { | |
609 | { "seconds", USEC_PER_SEC }, | |
610 | { "second", USEC_PER_SEC }, | |
611 | { "sec", USEC_PER_SEC }, | |
612 | { "s", USEC_PER_SEC }, | |
613 | { "minutes", USEC_PER_MINUTE }, | |
614 | { "minute", USEC_PER_MINUTE }, | |
615 | { "min", USEC_PER_MINUTE }, | |
616 | { "months", USEC_PER_MONTH }, | |
617 | { "month", USEC_PER_MONTH }, | |
618 | { "msec", USEC_PER_MSEC }, | |
619 | { "ms", USEC_PER_MSEC }, | |
620 | { "m", USEC_PER_MINUTE }, | |
621 | { "hours", USEC_PER_HOUR }, | |
622 | { "hour", USEC_PER_HOUR }, | |
623 | { "hr", USEC_PER_HOUR }, | |
624 | { "h", USEC_PER_HOUR }, | |
625 | { "days", USEC_PER_DAY }, | |
626 | { "day", USEC_PER_DAY }, | |
627 | { "d", USEC_PER_DAY }, | |
628 | { "weeks", USEC_PER_WEEK }, | |
629 | { "week", USEC_PER_WEEK }, | |
630 | { "w", USEC_PER_WEEK }, | |
631 | { "years", USEC_PER_YEAR }, | |
632 | { "year", USEC_PER_YEAR }, | |
633 | { "y", USEC_PER_YEAR }, | |
634 | { "usec", 1ULL }, | |
635 | { "us", 1ULL }, | |
636 | { "", USEC_PER_SEC }, /* default is sec */ | |
637 | }; | |
638 | ||
b1d6dcf5 | 639 | const char *p, *s; |
9a98c7a1 | 640 | usec_t r = 0; |
cb0dac05 | 641 | bool something = false; |
9a98c7a1 LP |
642 | |
643 | assert(t); | |
644 | assert(usec); | |
645 | ||
646 | p = t; | |
b1d6dcf5 ZJS |
647 | |
648 | p += strspn(p, WHITESPACE); | |
649 | s = startswith(p, "infinity"); | |
650 | if (s) { | |
651 | s += strspn(s, WHITESPACE); | |
652 | if (*s != 0) | |
653 | return -EINVAL; | |
654 | ||
655 | *usec = USEC_INFINITY; | |
656 | return 0; | |
657 | } | |
658 | ||
cb0dac05 LP |
659 | for (;;) { |
660 | long long l, z = 0; | |
9a98c7a1 | 661 | char *e; |
cb0dac05 LP |
662 | unsigned i, n = 0; |
663 | ||
664 | p += strspn(p, WHITESPACE); | |
665 | ||
666 | if (*p == 0) { | |
667 | if (!something) | |
668 | return -EINVAL; | |
669 | ||
670 | break; | |
671 | } | |
9a98c7a1 LP |
672 | |
673 | errno = 0; | |
674 | l = strtoll(p, &e, 10); | |
675 | ||
8333c77e | 676 | if (errno > 0) |
9a98c7a1 LP |
677 | return -errno; |
678 | ||
679 | if (l < 0) | |
680 | return -ERANGE; | |
681 | ||
cb0dac05 LP |
682 | if (*e == '.') { |
683 | char *b = e + 1; | |
684 | ||
685 | errno = 0; | |
686 | z = strtoll(b, &e, 10); | |
687 | if (errno > 0) | |
688 | return -errno; | |
689 | ||
690 | if (z < 0) | |
691 | return -ERANGE; | |
692 | ||
693 | if (e == b) | |
694 | return -EINVAL; | |
695 | ||
696 | n = e - b; | |
697 | ||
698 | } else if (e == p) | |
9a98c7a1 LP |
699 | return -EINVAL; |
700 | ||
701 | e += strspn(e, WHITESPACE); | |
702 | ||
703 | for (i = 0; i < ELEMENTSOF(table); i++) | |
704 | if (startswith(e, table[i].suffix)) { | |
cb0dac05 LP |
705 | usec_t k = (usec_t) z * table[i].usec; |
706 | ||
707 | for (; n > 0; n--) | |
708 | k /= 10; | |
709 | ||
710 | r += (usec_t) l * table[i].usec + k; | |
9a98c7a1 | 711 | p = e + strlen(table[i].suffix); |
cb0dac05 LP |
712 | |
713 | something = true; | |
9a98c7a1 LP |
714 | break; |
715 | } | |
716 | ||
717 | if (i >= ELEMENTSOF(table)) | |
718 | return -EINVAL; | |
719 | ||
cb0dac05 | 720 | } |
9a98c7a1 LP |
721 | |
722 | *usec = r; | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
727 | int parse_nsec(const char *t, nsec_t *nsec) { | |
728 | static const struct { | |
729 | const char *suffix; | |
730 | nsec_t nsec; | |
731 | } table[] = { | |
732 | { "seconds", NSEC_PER_SEC }, | |
733 | { "second", NSEC_PER_SEC }, | |
734 | { "sec", NSEC_PER_SEC }, | |
735 | { "s", NSEC_PER_SEC }, | |
736 | { "minutes", NSEC_PER_MINUTE }, | |
737 | { "minute", NSEC_PER_MINUTE }, | |
738 | { "min", NSEC_PER_MINUTE }, | |
739 | { "months", NSEC_PER_MONTH }, | |
740 | { "month", NSEC_PER_MONTH }, | |
741 | { "msec", NSEC_PER_MSEC }, | |
742 | { "ms", NSEC_PER_MSEC }, | |
743 | { "m", NSEC_PER_MINUTE }, | |
744 | { "hours", NSEC_PER_HOUR }, | |
745 | { "hour", NSEC_PER_HOUR }, | |
746 | { "hr", NSEC_PER_HOUR }, | |
747 | { "h", NSEC_PER_HOUR }, | |
748 | { "days", NSEC_PER_DAY }, | |
749 | { "day", NSEC_PER_DAY }, | |
750 | { "d", NSEC_PER_DAY }, | |
751 | { "weeks", NSEC_PER_WEEK }, | |
752 | { "week", NSEC_PER_WEEK }, | |
753 | { "w", NSEC_PER_WEEK }, | |
754 | { "years", NSEC_PER_YEAR }, | |
755 | { "year", NSEC_PER_YEAR }, | |
756 | { "y", NSEC_PER_YEAR }, | |
757 | { "usec", NSEC_PER_USEC }, | |
758 | { "us", NSEC_PER_USEC }, | |
759 | { "nsec", 1ULL }, | |
760 | { "ns", 1ULL }, | |
761 | { "", 1ULL }, /* default is nsec */ | |
762 | }; | |
763 | ||
764 | const char *p; | |
765 | nsec_t r = 0; | |
cb0dac05 | 766 | bool something = false; |
9a98c7a1 LP |
767 | |
768 | assert(t); | |
769 | assert(nsec); | |
770 | ||
771 | p = t; | |
cb0dac05 LP |
772 | for (;;) { |
773 | long long l, z = 0; | |
9a98c7a1 | 774 | char *e; |
cb0dac05 LP |
775 | unsigned i, n = 0; |
776 | ||
777 | p += strspn(p, WHITESPACE); | |
778 | ||
779 | if (*p == 0) { | |
780 | if (!something) | |
781 | return -EINVAL; | |
782 | ||
783 | break; | |
784 | } | |
9a98c7a1 LP |
785 | |
786 | errno = 0; | |
787 | l = strtoll(p, &e, 10); | |
788 | ||
8333c77e | 789 | if (errno > 0) |
9a98c7a1 LP |
790 | return -errno; |
791 | ||
792 | if (l < 0) | |
793 | return -ERANGE; | |
794 | ||
cb0dac05 LP |
795 | if (*e == '.') { |
796 | char *b = e + 1; | |
797 | ||
798 | errno = 0; | |
799 | z = strtoll(b, &e, 10); | |
800 | if (errno > 0) | |
801 | return -errno; | |
802 | ||
803 | if (z < 0) | |
804 | return -ERANGE; | |
805 | ||
806 | if (e == b) | |
807 | return -EINVAL; | |
808 | ||
809 | n = e - b; | |
810 | ||
811 | } else if (e == p) | |
9a98c7a1 LP |
812 | return -EINVAL; |
813 | ||
814 | e += strspn(e, WHITESPACE); | |
815 | ||
816 | for (i = 0; i < ELEMENTSOF(table); i++) | |
817 | if (startswith(e, table[i].suffix)) { | |
cb0dac05 LP |
818 | nsec_t k = (nsec_t) z * table[i].nsec; |
819 | ||
820 | for (; n > 0; n--) | |
821 | k /= 10; | |
822 | ||
823 | r += (nsec_t) l * table[i].nsec + k; | |
9a98c7a1 | 824 | p = e + strlen(table[i].suffix); |
cb0dac05 LP |
825 | |
826 | something = true; | |
9a98c7a1 LP |
827 | break; |
828 | } | |
829 | ||
830 | if (i >= ELEMENTSOF(table)) | |
831 | return -EINVAL; | |
832 | ||
cb0dac05 | 833 | } |
9a98c7a1 LP |
834 | |
835 | *nsec = r; | |
836 | ||
837 | return 0; | |
838 | } | |
03cc26dd LP |
839 | |
840 | bool ntp_synced(void) { | |
841 | struct timex txc = {}; | |
842 | ||
843 | if (adjtimex(&txc) < 0) | |
844 | return false; | |
845 | ||
846 | if (txc.status & STA_UNSYNC) | |
847 | return false; | |
848 | ||
849 | return true; | |
850 | } | |
75683450 LP |
851 | |
852 | int get_timezones(char ***ret) { | |
853 | _cleanup_fclose_ FILE *f = NULL; | |
854 | _cleanup_strv_free_ char **zones = NULL; | |
855 | size_t n_zones = 0, n_allocated = 0; | |
856 | ||
857 | assert(ret); | |
858 | ||
859 | zones = strv_new("UTC", NULL); | |
860 | if (!zones) | |
861 | return -ENOMEM; | |
862 | ||
863 | n_allocated = 2; | |
864 | n_zones = 1; | |
865 | ||
866 | f = fopen("/usr/share/zoneinfo/zone.tab", "re"); | |
867 | if (f) { | |
868 | char l[LINE_MAX]; | |
869 | ||
870 | FOREACH_LINE(l, f, return -errno) { | |
871 | char *p, *w; | |
872 | size_t k; | |
873 | ||
874 | p = strstrip(l); | |
875 | ||
876 | if (isempty(p) || *p == '#') | |
877 | continue; | |
878 | ||
879 | /* Skip over country code */ | |
880 | p += strcspn(p, WHITESPACE); | |
881 | p += strspn(p, WHITESPACE); | |
882 | ||
883 | /* Skip over coordinates */ | |
884 | p += strcspn(p, WHITESPACE); | |
885 | p += strspn(p, WHITESPACE); | |
886 | ||
887 | /* Found timezone name */ | |
888 | k = strcspn(p, WHITESPACE); | |
889 | if (k <= 0) | |
890 | continue; | |
891 | ||
892 | w = strndup(p, k); | |
893 | if (!w) | |
894 | return -ENOMEM; | |
895 | ||
896 | if (!GREEDY_REALLOC(zones, n_allocated, n_zones + 2)) { | |
897 | free(w); | |
898 | return -ENOMEM; | |
899 | } | |
900 | ||
901 | zones[n_zones++] = w; | |
902 | zones[n_zones] = NULL; | |
903 | } | |
904 | ||
905 | strv_sort(zones); | |
906 | ||
907 | } else if (errno != ENOENT) | |
908 | return -errno; | |
909 | ||
910 | *ret = zones; | |
911 | zones = NULL; | |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
916 | bool timezone_is_valid(const char *name) { | |
917 | bool slash = false; | |
918 | const char *p, *t; | |
919 | struct stat st; | |
920 | ||
921 | if (!name || *name == 0 || *name == '/') | |
922 | return false; | |
923 | ||
924 | for (p = name; *p; p++) { | |
925 | if (!(*p >= '0' && *p <= '9') && | |
926 | !(*p >= 'a' && *p <= 'z') && | |
927 | !(*p >= 'A' && *p <= 'Z') && | |
928 | !(*p == '-' || *p == '_' || *p == '+' || *p == '/')) | |
929 | return false; | |
930 | ||
931 | if (*p == '/') { | |
932 | ||
933 | if (slash) | |
934 | return false; | |
935 | ||
936 | slash = true; | |
937 | } else | |
938 | slash = false; | |
939 | } | |
940 | ||
941 | if (slash) | |
942 | return false; | |
943 | ||
944 | t = strappenda("/usr/share/zoneinfo/", name); | |
945 | if (stat(t, &st) < 0) | |
946 | return false; | |
947 | ||
948 | if (!S_ISREG(st.st_mode)) | |
949 | return false; | |
950 | ||
951 | return true; | |
952 | } | |
77ff2de9 TG |
953 | |
954 | clockid_t clock_boottime_or_monotonic(void) { | |
955 | static clockid_t clock = -1; | |
956 | int fd; | |
957 | ||
958 | if (clock != -1) | |
959 | return clock; | |
960 | ||
961 | fd = timerfd_create(CLOCK_BOOTTIME, TFD_NONBLOCK|TFD_CLOEXEC); | |
962 | if (fd < 0) | |
963 | clock = CLOCK_MONOTONIC; | |
964 | else { | |
965 | safe_close(fd); | |
966 | clock = CLOCK_BOOTTIME; | |
967 | } | |
968 | ||
969 | return clock; | |
970 | } |