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81582353 | 1 | /* |
f3df4c03 | 2 | * Copyright (c) 2007-2013 Apple Inc. All rights reserved. |
81582353 A |
3 | * |
4 | * @APPLE_LICENSE_HEADER_START@ | |
5 | * | |
6 | * This file contains Original Code and/or Modifications of Original Code | |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. Please obtain a copy of the License at | |
10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
11 | * file. | |
12 | * | |
13 | * The Original Code and all software distributed under the License are | |
14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
18 | * Please see the License for the specific language governing rights and | |
19 | * limitations under the License. | |
20 | * | |
21 | * @APPLE_LICENSE_HEADER_END@ | |
22 | */ | |
23 | ||
24 | #include <ctype.h> | |
25 | #include <stdio.h> | |
f3df4c03 A |
26 | #include <stdbool.h> |
27 | #include <asl.h> | |
28 | #include <asl_string.h> | |
81582353 A |
29 | #include <asl_core.h> |
30 | #include <asl_private.h> | |
31 | #include <string.h> | |
32 | #include <membership.h> | |
33 | #include <pthread.h> | |
34 | #include <libkern/OSAtomic.h> | |
f3df4c03 A |
35 | #include <servers/bootstrap.h> |
36 | #include <bootstrap_priv.h> | |
81582353 A |
37 | #include <mach/kern_return.h> |
38 | #include <mach/mach_init.h> | |
39 | #include <mach/mach_vm.h> | |
40 | #include <mach/vm_map.h> | |
41 | #include <mach/vm_param.h> | |
f3df4c03 | 42 | #include <dispatch/dispatch.h> |
81582353 | 43 | |
f3df4c03 A |
44 | const char *ASL_LEVEL_TO_STRING[] = |
45 | { | |
46 | ASL_STRING_EMERG, | |
47 | ASL_STRING_ALERT, | |
48 | ASL_STRING_CRIT, | |
49 | ASL_STRING_ERR, | |
50 | ASL_STRING_WARNING, | |
51 | ASL_STRING_NOTICE, | |
52 | ASL_STRING_INFO, | |
53 | ASL_STRING_DEBUG | |
54 | }; | |
55 | ||
81582353 A |
56 | /* |
57 | * Message ID generation | |
58 | */ | |
59 | static uint64_t _asl_core_msg_next_id = 1; | |
60 | static pthread_mutex_t core_lock = PTHREAD_MUTEX_INITIALIZER; | |
61 | ||
62 | #define mix(a, b, c) \ | |
63 | { \ | |
64 | a -= b; a -= c; a ^= (c>>13); \ | |
65 | b -= c; b -= a; b ^= (a<< 8); \ | |
66 | c -= a; c -= b; c ^= (b>>13); \ | |
67 | a -= b; a -= c; a ^= (c>>12); \ | |
68 | b -= c; b -= a; b ^= (a<<16); \ | |
69 | c -= a; c -= b; c ^= (b>> 5); \ | |
70 | a -= b; a -= c; a ^= (c>> 3); \ | |
71 | b -= c; b -= a; b ^= (a<<10); \ | |
72 | c -= a; c -= b; c ^= (b>>15); \ | |
73 | } | |
74 | ||
f3df4c03 A |
75 | /* |
76 | * Get ASL server mach port. | |
77 | * reset != 0 flushes cached port. | |
78 | * reset < 0 returns MACH_PORT_NULL | |
79 | */ | |
80 | mach_port_t | |
81 | asl_core_get_service_port(int reset) | |
82 | { | |
83 | static mach_port_t server_port = MACH_PORT_NULL; | |
84 | mach_port_t tmp; | |
85 | kern_return_t kstatus; | |
5222c21d | 86 | |
f3df4c03 A |
87 | if ((reset != 0) && (server_port != MACH_PORT_NULL)) |
88 | { | |
89 | mach_port_t tmp = server_port; | |
90 | server_port = MACH_PORT_NULL; | |
91 | mach_port_deallocate(mach_task_self(), tmp); | |
92 | } | |
93 | ||
94 | if (reset < 0) return MACH_PORT_NULL; | |
95 | ||
96 | if (server_port != MACH_PORT_NULL) return server_port; | |
97 | ||
98 | tmp = MACH_PORT_NULL; | |
99 | char *str = getenv("ASL_DISABLE"); | |
100 | if ((str != NULL) && (!strcmp(str, "1"))) return MACH_PORT_NULL; | |
101 | ||
102 | kstatus = bootstrap_look_up2(bootstrap_port, ASL_SERVICE_NAME, &tmp, 0, BOOTSTRAP_PRIVILEGED_SERVER); | |
103 | if ((kstatus != KERN_SUCCESS) || (tmp == MACH_PORT_NULL)) return MACH_PORT_NULL; | |
104 | ||
105 | if (!OSAtomicCompareAndSwap32Barrier(MACH_PORT_NULL, tmp, (int32_t *)&server_port)) | |
106 | { | |
107 | mach_port_deallocate(mach_task_self(), tmp); | |
108 | } | |
109 | ||
110 | return server_port; | |
111 | } | |
112 | ||
81582353 A |
113 | /* |
114 | * Hash is used to improve string search. | |
115 | */ | |
116 | uint32_t | |
117 | asl_core_string_hash(const char *s, uint32_t inlen) | |
118 | { | |
119 | uint32_t a, b, c, l, len; | |
120 | ||
121 | if (s == NULL) return 0; | |
122 | ||
123 | l = inlen; | |
124 | if (l == 0) | |
125 | { | |
126 | if (s[0] == '\0') return 0; | |
127 | l = strlen(s); | |
128 | } | |
129 | ||
130 | len = l; | |
131 | a = b = 0x9e3779b9; | |
132 | c = 0; | |
133 | ||
134 | while (len >= 12) | |
135 | { | |
136 | a += (s[0] + ((uint32_t)s[1]<<8) + ((uint32_t)s[ 2]<<16) + ((uint32_t)s[ 3]<<24)); | |
137 | b += (s[4] + ((uint32_t)s[5]<<8) + ((uint32_t)s[ 6]<<16) + ((uint32_t)s[ 7]<<24)); | |
138 | c += (s[8] + ((uint32_t)s[9]<<8) + ((uint32_t)s[10]<<16) + ((uint32_t)s[11]<<24)); | |
139 | ||
140 | mix(a, b, c); | |
141 | ||
142 | s += 12; | |
143 | len -= 12; | |
144 | } | |
145 | ||
146 | c += l; | |
147 | switch(len) | |
148 | { | |
149 | case 11: c += ((uint32_t)s[10]<<24); | |
150 | case 10: c += ((uint32_t)s[9]<<16); | |
151 | case 9 : c += ((uint32_t)s[8]<<8); | |
152 | ||
153 | case 8 : b += ((uint32_t)s[7]<<24); | |
154 | case 7 : b += ((uint32_t)s[6]<<16); | |
155 | case 6 : b += ((uint32_t)s[5]<<8); | |
156 | case 5 : b += s[4]; | |
157 | ||
158 | case 4 : a += ((uint32_t)s[3]<<24); | |
159 | case 3 : a += ((uint32_t)s[2]<<16); | |
160 | case 2 : a += ((uint32_t)s[1]<<8); | |
161 | case 1 : a += s[0]; | |
162 | } | |
163 | ||
164 | mix(a, b, c); | |
165 | ||
166 | if (c == 0) c = 1; | |
167 | return c; | |
168 | } | |
169 | ||
170 | const char * | |
171 | asl_core_error(uint32_t code) | |
172 | { | |
173 | switch (code) | |
174 | { | |
175 | case ASL_STATUS_OK: return "Operation Succeeded"; | |
176 | case ASL_STATUS_INVALID_ARG: return "Invalid Argument"; | |
177 | case ASL_STATUS_INVALID_STORE: return "Invalid Data Store"; | |
178 | case ASL_STATUS_INVALID_STRING: return "Invalid String"; | |
179 | case ASL_STATUS_INVALID_ID: return "Invalid ID Number"; | |
180 | case ASL_STATUS_INVALID_MESSAGE: return "Invalid Message"; | |
181 | case ASL_STATUS_NOT_FOUND: return "Not Found"; | |
182 | case ASL_STATUS_READ_FAILED: return "Read Operation Failed"; | |
183 | case ASL_STATUS_WRITE_FAILED: return "Write Operation Failed"; | |
184 | case ASL_STATUS_NO_MEMORY: return "System Memory Allocation Failed"; | |
185 | case ASL_STATUS_ACCESS_DENIED: return "Access Denied"; | |
186 | case ASL_STATUS_READ_ONLY: return "Read Only Access"; | |
187 | case ASL_STATUS_WRITE_ONLY: return "Write Only Access"; | |
188 | case ASL_STATUS_MATCH_FAILED: return "Match Failed"; | |
189 | case ASL_STATUS_NO_RECORDS: return "No More Records"; | |
190 | } | |
191 | ||
192 | return "Operation Failed"; | |
193 | } | |
194 | ||
f3df4c03 A |
195 | const char * |
196 | asl_core_level_to_string(uint32_t level) | |
197 | { | |
198 | if (level > ASL_LEVEL_DEBUG) return "invalid"; | |
199 | return ASL_LEVEL_TO_STRING[level]; | |
200 | } | |
201 | ||
202 | static ASL_STATUS | |
81582353 A |
203 | asl_core_check_user_access(int32_t msgu, int32_t readu) |
204 | { | |
205 | /* -1 means anyone may read */ | |
206 | if (msgu == -1) return ASL_STATUS_OK; | |
207 | ||
208 | /* Check for exact match */ | |
209 | if (msgu == readu) return ASL_STATUS_OK; | |
210 | ||
211 | return ASL_STATUS_ACCESS_DENIED; | |
212 | } | |
213 | ||
f3df4c03 | 214 | static ASL_STATUS |
81582353 A |
215 | asl_core_check_group_access(int32_t msgg, int32_t readu, int32_t readg) |
216 | { | |
217 | int check; | |
218 | uuid_t uu, gu; | |
219 | ||
220 | /* -1 means anyone may read */ | |
221 | if (msgg == -1) return ASL_STATUS_OK; | |
222 | ||
223 | /* Check for exact match */ | |
224 | if (msgg == readg) return ASL_STATUS_OK; | |
225 | ||
226 | /* Check if user (u) is in read group (msgg) */ | |
227 | mbr_uid_to_uuid(readu, uu); | |
228 | mbr_gid_to_uuid(msgg, gu); | |
229 | ||
230 | check = 0; | |
231 | mbr_check_membership(uu, gu, &check); | |
232 | if (check != 0) return ASL_STATUS_OK; | |
233 | ||
234 | return ASL_STATUS_ACCESS_DENIED; | |
235 | } | |
236 | ||
f3df4c03 | 237 | ASL_STATUS |
81582353 A |
238 | asl_core_check_access(int32_t msgu, int32_t msgg, int32_t readu, int32_t readg, uint16_t flags) |
239 | { | |
240 | uint16_t uset, gset; | |
241 | ||
242 | /* root (uid 0) may always read */ | |
243 | if (readu == 0) return ASL_STATUS_OK; | |
244 | ||
245 | uset = flags & ASL_MSG_FLAG_READ_UID_SET; | |
246 | gset = flags & ASL_MSG_FLAG_READ_GID_SET; | |
247 | ||
248 | /* if no access controls are set, anyone may read */ | |
249 | if ((uset | gset) == 0) return ASL_STATUS_OK; | |
250 | ||
251 | /* if only uid is set, then access is only by uid match */ | |
252 | if ((uset != 0) && (gset == 0)) return asl_core_check_user_access(msgu, readu); | |
253 | ||
254 | /* if only gid is set, then access is only by gid match */ | |
255 | if ((uset == 0) && (gset != 0)) return asl_core_check_group_access(msgg, readu, readg); | |
256 | ||
257 | /* both uid and gid are set - check user, then group */ | |
258 | if ((asl_core_check_user_access(msgu, readu)) == ASL_STATUS_OK) return ASL_STATUS_OK; | |
259 | return asl_core_check_group_access(msgg, readu, readg); | |
260 | } | |
261 | ||
262 | uint64_t | |
263 | asl_core_htonq(uint64_t n) | |
264 | { | |
265 | #ifdef __BIG_ENDIAN__ | |
266 | return n; | |
267 | #else | |
268 | u_int32_t t; | |
269 | union | |
270 | { | |
271 | u_int64_t q; | |
272 | u_int32_t l[2]; | |
273 | } x; | |
274 | ||
275 | x.q = n; | |
276 | t = x.l[0]; | |
277 | x.l[0] = htonl(x.l[1]); | |
278 | x.l[1] = htonl(t); | |
279 | ||
280 | return x.q; | |
281 | #endif | |
282 | } | |
283 | ||
284 | uint64_t | |
285 | asl_core_ntohq(uint64_t n) | |
286 | { | |
287 | #ifdef __BIG_ENDIAN__ | |
288 | return n; | |
289 | #else | |
290 | u_int32_t t; | |
291 | union | |
292 | { | |
293 | u_int64_t q; | |
294 | u_int32_t l[2]; | |
295 | } x; | |
296 | ||
297 | x.q = n; | |
298 | t = x.l[0]; | |
299 | x.l[0] = ntohl(x.l[1]); | |
300 | x.l[1] = ntohl(t); | |
301 | ||
302 | return x.q; | |
303 | #endif | |
304 | } | |
305 | ||
306 | uint64_t | |
307 | asl_core_new_msg_id(uint64_t start) | |
308 | { | |
309 | uint64_t out; | |
310 | ||
311 | pthread_mutex_lock(&core_lock); | |
312 | ||
313 | if (start != 0) _asl_core_msg_next_id = start; | |
314 | ||
315 | out = _asl_core_msg_next_id; | |
316 | _asl_core_msg_next_id++; | |
317 | ||
318 | pthread_mutex_unlock(&core_lock); | |
319 | ||
320 | return out; | |
321 | } | |
322 | ||
f3df4c03 A |
323 | const char * |
324 | asl_filesystem_path(uint32_t place) | |
325 | { | |
326 | static dispatch_once_t once; | |
5222c21d A |
327 | static char *asl_filesystem_path_database = NULL; |
328 | static char *asl_filesystem_path_archive = NULL; | |
f3df4c03 A |
329 | |
330 | dispatch_once(&once, ^{ | |
331 | char *asl_var_log = NULL; | |
332 | const char *const_asl_var_log = "/var/log"; | |
333 | ||
5222c21d | 334 | #if TARGET_OS_SIMULATOR |
f3df4c03 A |
335 | asl_var_log = getenv("SIMULATOR_LOG_ROOT"); |
336 | #endif | |
337 | ||
338 | if (asl_var_log != NULL) const_asl_var_log = (const char *)asl_var_log; | |
339 | ||
340 | asprintf(&asl_filesystem_path_database, "%s/asl", const_asl_var_log); | |
341 | asprintf(&asl_filesystem_path_archive, "%s/asl.archive", const_asl_var_log); | |
342 | }); | |
343 | ||
344 | switch (place) | |
345 | { | |
346 | case ASL_PLACE_DATABASE: | |
347 | { | |
f3df4c03 A |
348 | return asl_filesystem_path_database; |
349 | } | |
350 | case ASL_PLACE_ARCHIVE: | |
351 | { | |
f3df4c03 A |
352 | return asl_filesystem_path_archive; |
353 | } | |
354 | default: | |
355 | { | |
356 | return NULL; | |
357 | } | |
358 | } | |
359 | ||
360 | return NULL; | |
361 | } | |
362 | ||
363 | #pragma mark - | |
364 | #pragma mark data buffer encoding | |
365 | ||
81582353 A |
366 | /* |
367 | * asl_core_encode_buffer | |
368 | * encode arbitrary data as a C string without embedded zero (nul) characters | |
369 | * | |
370 | * The routine computes a histogram of the input buffer and finds | |
371 | * the two least frequently used non-nul chars (L[0] and L[1]). | |
372 | * | |
373 | * L[0] is used to stand in for nul. | |
374 | * L[1] is used as the escape character. | |
375 | * Occurrences of nul in the data are encoded as L[0] | |
376 | * Occurrences of L[0] in the data are encoded as the sequence L[1] 1. | |
377 | * Occurrences of L[1] in the data are encoded as the sequence L[1] 2. | |
378 | * | |
379 | * The output string is preceded by L[0] L[1], and is nul terminated. | |
380 | * The output length is 2 + n + N(L[0]) + N(L[1]) + 1 | |
381 | * where N(x) is the number of occurrences of x in the input string. | |
f3df4c03 | 382 | * The worst case occurs when all characters are equally frequent, |
81582353 A |
383 | * In that case the output size will less that 1% larger than the input. |
384 | */ | |
385 | char * | |
386 | asl_core_encode_buffer(const char *in, uint32_t len) | |
387 | { | |
388 | char *str; | |
389 | uint32_t i, j, k, outlen, breakit, min, hist[256]; | |
390 | uint32_t lfu[2], save[2]; | |
391 | uint8_t v; | |
392 | ||
393 | if (in == NULL) return NULL; | |
394 | if (len == 0) return NULL; | |
395 | ||
396 | memset(hist, 0, sizeof(hist)); | |
397 | save[0] = 0; | |
398 | save[1] = 0; | |
399 | ||
400 | for (i = 0; i < len; i++) | |
401 | { | |
402 | v = in[i]; | |
403 | hist[v]++; | |
404 | } | |
405 | ||
406 | for (j = 0; j < 2; j++) | |
407 | { | |
408 | lfu[j] = 1; | |
409 | min = hist[1]; | |
410 | ||
411 | for (i = 2; i < 256; i++) | |
412 | { | |
413 | if (hist[i] < min) | |
414 | { | |
415 | lfu[j] = i; | |
416 | min = hist[i]; | |
417 | ||
418 | /* | |
419 | * Stop if there are no occurances or character i in the input. | |
420 | * The minimum will never be less than zero. | |
421 | */ | |
422 | if (min == 0) break; | |
423 | ||
424 | /* | |
425 | * When looking for the second least frequently used character, | |
426 | * stop scanning if we hit the same minimum as we saw in the first | |
427 | * pass. There will be no smaller values. | |
428 | */ | |
429 | if ((j == 1) && (min == save[0])) break; | |
430 | } | |
431 | } | |
432 | ||
433 | save[j] = hist[lfu[j]]; | |
434 | hist[lfu[j]] = (uint32_t)-1; | |
435 | } | |
436 | ||
437 | outlen = 2 + len + save[0] + save[1] + 1; | |
438 | ||
439 | str = malloc(outlen); | |
440 | if (str == NULL) return NULL; | |
441 | ||
442 | str[outlen - 1] = '\0'; | |
443 | ||
444 | str[0] = lfu[0]; | |
445 | str[1] = lfu[1]; | |
446 | ||
447 | j = 2; | |
448 | ||
449 | for (i = 0; i < len; i++) | |
450 | { | |
451 | v = in[i]; | |
452 | if (v == 0) | |
453 | { | |
454 | str[j++] = lfu[0]; | |
455 | continue; | |
456 | } | |
457 | ||
458 | breakit = 0; | |
459 | for (k = 0; (k < 2) && (breakit == 0); k++) | |
460 | { | |
461 | if (v == lfu[k]) | |
462 | { | |
463 | str[j++] = lfu[1]; | |
464 | str[j++] = k + 1; | |
465 | breakit = 1; | |
466 | } | |
467 | } | |
468 | ||
469 | if (breakit == 1) continue; | |
470 | ||
471 | str[j++] = v; | |
472 | } | |
473 | ||
474 | return str; | |
475 | } | |
476 | ||
477 | /* | |
478 | * asl_core_decode_buffer | |
479 | * decode a string produced by asl_encode_buffer to recreate the original data | |
480 | */ | |
481 | int32_t | |
482 | asl_core_decode_buffer(const char *in, char **buf, uint32_t *len) | |
483 | { | |
484 | uint8_t v; | |
485 | uint32_t i, j, n, outlen; | |
486 | uint8_t lfu[2]; | |
487 | char *out; | |
488 | ||
489 | if (buf == NULL) return -1; | |
490 | if (len == NULL) return -1; | |
491 | ||
492 | lfu[0] = in[0]; | |
493 | lfu[1] = in[1]; | |
494 | ||
495 | outlen = 0; | |
496 | ||
497 | /* strip trailing nul */ | |
498 | n = strlen(in); | |
499 | ||
500 | /* determine output length and check for invalid input */ | |
501 | for (i = 2; i < n; i++) | |
502 | { | |
503 | v = in[i]; | |
504 | if (v == lfu[1]) | |
505 | { | |
506 | i++; | |
507 | if (i == n) return -1; | |
508 | ||
509 | v = in[i]; | |
510 | if ((v < 1) || (v > 2)) return -1; | |
511 | ||
512 | outlen++; | |
513 | } | |
514 | else outlen++; | |
515 | } | |
516 | ||
517 | if (outlen == 0) return -1; | |
518 | ||
519 | out = malloc(outlen); | |
520 | if (out == NULL) return -1; | |
521 | ||
522 | j = 0; | |
523 | for (i = 2; i < n; i++) | |
524 | { | |
525 | v = in[i]; | |
526 | if (v == lfu[0]) | |
527 | { | |
528 | out[j++] = 0; | |
529 | } | |
530 | else if (v == lfu[1]) | |
531 | { | |
532 | i++; | |
533 | v = in[i]; | |
534 | out[j++] = lfu[v - 1]; | |
535 | } | |
536 | else out[j++] = v; | |
537 | } | |
538 | ||
539 | *len = outlen; | |
540 | *buf = out; | |
541 | return 0; | |
542 | } | |
543 | ||
f3df4c03 A |
544 | #pragma mark - |
545 | #pragma mark time parsing | |
81582353 | 546 | |
f3df4c03 A |
547 | /* |
548 | * utility for converting a time string into a time_t | |
549 | * we only deal with the following formats: | |
550 | * dotted form YYYY.MM.DD hh:mm:ss UTC | |
551 | * ctime() form Mth dd hh:mm:ss (e.g. Aug 25 09:54:37) | |
552 | * absolute form - # seconds since the epoch (e.g. 1095789191) | |
553 | * relative time - seconds before or after now (e.g. -300, +43200) | |
554 | * relative time - days/hours/minutes/seconds before or after now (e.g. -1d, +6h, +30m, -10s) | |
555 | * ISO8601 - YYYY[-]MM[-]DDTHH[:]MM[:]SS optionally followed by Z or +/-HH[[:]MM] | |
556 | */ | |
81582353 | 557 | |
f3df4c03 A |
558 | /* |
559 | * light(er)-weight replcaement (in place of regex) for asl_core_parse_time | |
560 | */ | |
81582353 | 561 | |
f3df4c03 A |
562 | #define MFLAG_INCLUDE 0x00000001 |
563 | #define MFLAG_EXCLUDE 0x00000002 | |
81582353 | 564 | |
f3df4c03 A |
565 | #define DIGITS "0123456789" |
566 | #define WHITESPACE " " | |
81582353 | 567 | |
f3df4c03 A |
568 | #define SECONDS_PER_MINUTE 60 |
569 | #define SECONDS_PER_HOUR 3600 | |
570 | #define SECONDS_PER_DAY 86400 | |
571 | #define SECONDS_PER_WEEK 604800 | |
81582353 | 572 | |
f3df4c03 A |
573 | /* |
574 | * Match between mincount and maxcount characters in or not in mset. | |
575 | * maxcount == 0 means no limit. | |
576 | * | |
577 | */ | |
578 | bool | |
579 | asl_core_str_match(const char *target, const char *mset, uint32_t mincount, uint32_t maxcount, uint32_t flags, uint32_t *length) | |
81582353 | 580 | { |
f3df4c03 A |
581 | const char *x; |
582 | uint32_t n; | |
5222c21d | 583 | |
f3df4c03 | 584 | if (length == NULL) length = &n; |
5222c21d | 585 | |
f3df4c03 | 586 | if (target == NULL) return (mincount == 0); |
5222c21d | 587 | |
f3df4c03 A |
588 | for (x = target, *length = 0; *x != '\0'; x++, *length = *length + 1) |
589 | { | |
590 | char *s; | |
5222c21d | 591 | |
f3df4c03 A |
592 | if ((*length == maxcount) && (maxcount > 0)) return true; |
593 | if (mset == NULL) continue; | |
5222c21d | 594 | |
f3df4c03 A |
595 | s = strchr(mset, *x); |
596 | if ((s == NULL) && (flags & MFLAG_EXCLUDE)) continue; | |
597 | if ((s != NULL) && (flags & MFLAG_INCLUDE)) continue; | |
5222c21d | 598 | |
f3df4c03 A |
599 | break; |
600 | } | |
5222c21d | 601 | |
f3df4c03 | 602 | return (*length >= mincount); |
81582353 A |
603 | } |
604 | ||
f3df4c03 A |
605 | bool |
606 | asl_core_str_match_char(const char *target, const char c, uint32_t mincount, uint32_t flags, uint32_t *length) | |
81582353 | 607 | { |
f3df4c03 | 608 | uint32_t n; |
5222c21d | 609 | |
f3df4c03 A |
610 | if (length == NULL) length = &n; |
611 | *length = 0; | |
5222c21d | 612 | |
f3df4c03 | 613 | if (target == NULL) return (mincount == 0); |
5222c21d | 614 | |
f3df4c03 A |
615 | if ((*target == c) && (flags & MFLAG_INCLUDE)) *length = 1; |
616 | if ((*target != c) && (flags & MFLAG_EXCLUDE)) *length = 1; | |
5222c21d | 617 | |
f3df4c03 | 618 | return (*length >= mincount); |
81582353 A |
619 | } |
620 | ||
f3df4c03 A |
621 | uint32_t |
622 | asl_core_str_to_uint32(const char *target, uint32_t length) | |
81582353 | 623 | { |
f3df4c03 | 624 | uint32_t i, d, out = 0; |
5222c21d | 625 | |
f3df4c03 A |
626 | for (i = 0; i < length; i++) |
627 | { | |
628 | d = target[i] - '0'; | |
629 | out = (out * 10) + d; | |
630 | } | |
5222c21d A |
631 | |
632 | return out; | |
633 | } | |
634 | ||
635 | size_t | |
636 | asl_core_str_to_size(char *s) | |
637 | { | |
638 | size_t len, n, max; | |
639 | char x; | |
640 | ||
641 | if (s == NULL) return 0; | |
642 | ||
643 | len = strlen(s); | |
644 | if (len == 0) return 0; | |
645 | ||
646 | n = 1; | |
647 | x = s[len - 1]; | |
648 | if (x > 90) x -= 32; | |
649 | if (x == 'K') n = 1ll << 10; | |
650 | else if (x == 'M') n = 1ll << 20; | |
651 | else if (x == 'G') n = 1ll << 30; | |
652 | ||
653 | max = atoll(s) * n; | |
654 | return max; | |
655 | } | |
656 | ||
657 | time_t | |
658 | asl_core_str_to_time(char *s, uint32_t def_n) | |
659 | { | |
660 | size_t len; | |
661 | time_t n, out; | |
662 | char x; | |
663 | ||
664 | if (s == NULL) return 0; | |
665 | ||
666 | len = strlen(s); | |
667 | if (len == 0) return 0; | |
668 | ||
669 | n = def_n; | |
670 | ||
671 | x = s[len - 1]; | |
672 | if (x > 90) x -= 32; | |
673 | ||
674 | if (x == 'S') n = 1; | |
675 | else if (x == 'M') n = SECONDS_PER_MINUTE; | |
676 | else if (x == 'H') n = SECONDS_PER_HOUR; | |
677 | else if (x == 'D') n = SECONDS_PER_DAY; | |
678 | ||
679 | out = atoll(s) * n; | |
f3df4c03 | 680 | return out; |
81582353 A |
681 | } |
682 | ||
5222c21d A |
683 | void |
684 | asl_core_time_to_str(time_t s, char *str, size_t len) | |
685 | { | |
686 | char days[32], hms[32]; | |
687 | uint32_t d, h, m; | |
688 | ||
689 | d = s / SECONDS_PER_DAY; | |
690 | s %= SECONDS_PER_DAY; | |
691 | ||
692 | h = s / SECONDS_PER_HOUR; | |
693 | s %= SECONDS_PER_HOUR; | |
694 | ||
695 | m = s / SECONDS_PER_MINUTE; | |
696 | s %= SECONDS_PER_MINUTE; | |
697 | ||
698 | memset(days, 0, sizeof(days)); | |
699 | if (d > 0) snprintf(days, sizeof(days), "%u day%s", d, (d == 1) ? "" : "s"); | |
700 | ||
701 | memset(hms, 0, sizeof(hms)); | |
702 | snprintf(hms, sizeof(hms), "%02u:%02u:%02lld", h, m, (long long) s); | |
703 | ||
704 | if ((h + m + s) == 0) | |
705 | { | |
706 | if (d == 0) snprintf(str, len, "0"); | |
707 | else snprintf(str, len, "%s", days); | |
708 | return; | |
709 | } | |
710 | ||
711 | if (d == 0) snprintf(str, len, "%s", hms); | |
712 | else snprintf(str, len, "%s %s", days, hms); | |
713 | } | |
714 | ||
f3df4c03 A |
715 | static bool |
716 | asl_core_str_match_absolute_or_relative_time(const char *target, time_t *tval, uint32_t *tlen) | |
81582353 | 717 | { |
f3df4c03 A |
718 | uint32_t len; |
719 | int32_t val, sign = 1; | |
720 | bool test; | |
721 | const char *p; | |
722 | time_t start = 0; | |
5222c21d | 723 | |
f3df4c03 | 724 | if (target == NULL) return false; |
5222c21d | 725 | |
f3df4c03 A |
726 | /* [+-] */ |
727 | p = target; | |
728 | test = asl_core_str_match(p, "+-", 0, 1, MFLAG_INCLUDE, &len); | |
729 | if (!test) return false; | |
5222c21d | 730 | |
f3df4c03 | 731 | if (len == 1) |
81582353 | 732 | { |
f3df4c03 A |
733 | /* relative time */ |
734 | start = time(NULL); | |
735 | if (*p == '-') sign = -1; | |
81582353 | 736 | } |
5222c21d | 737 | |
f3df4c03 A |
738 | /* [0-9]+ */ |
739 | p += len; | |
740 | test = asl_core_str_match(p, DIGITS, 1, 0, MFLAG_INCLUDE, &len); | |
741 | if (!test) return false; | |
742 | val = asl_core_str_to_uint32(p, len); | |
5222c21d | 743 | |
f3df4c03 A |
744 | /* [shmdw] */ |
745 | p += len; | |
746 | test = asl_core_str_match(p, "SsMmHhDdWw", 0, 1, MFLAG_INCLUDE, &len); | |
747 | if (!test) return false; | |
5222c21d | 748 | |
f3df4c03 A |
749 | if ((*p == 'M') || (*p == 'm')) val *= SECONDS_PER_MINUTE; |
750 | else if ((*p == 'H') || (*p == 'h')) val *= SECONDS_PER_HOUR; | |
751 | else if ((*p == 'D') || (*p == 'd')) val *= SECONDS_PER_DAY; | |
752 | else if ((*p == 'W') || (*p == 'w')) val *= SECONDS_PER_WEEK; | |
5222c21d | 753 | |
f3df4c03 A |
754 | /* matched string must be followed by space, tab, newline (not counted in length) */ |
755 | p += len; | |
756 | if (*p != '\0') | |
81582353 | 757 | { |
f3df4c03 A |
758 | test = asl_core_str_match(p, " \t\n", 1, 1, MFLAG_INCLUDE, &len); |
759 | if (!test) return false; | |
81582353 | 760 | } |
5222c21d | 761 | |
f3df4c03 A |
762 | if (tlen != NULL) *tlen = p - target; |
763 | if (tval != NULL) *tval = start + (sign * val); | |
5222c21d | 764 | |
f3df4c03 | 765 | return true; |
81582353 A |
766 | } |
767 | ||
f3df4c03 A |
768 | static int |
769 | _month_num(const char *s) | |
81582353 | 770 | { |
f3df4c03 A |
771 | if (!strncasecmp(s, "jan", 3)) return 0; |
772 | if (!strncasecmp(s, "feb", 3)) return 1; | |
773 | if (!strncasecmp(s, "mar", 3)) return 2; | |
774 | if (!strncasecmp(s, "apr", 3)) return 3; | |
775 | if (!strncasecmp(s, "may", 3)) return 4; | |
776 | if (!strncasecmp(s, "jun", 3)) return 5; | |
777 | if (!strncasecmp(s, "jul", 3)) return 6; | |
778 | if (!strncasecmp(s, "aug", 3)) return 7; | |
779 | if (!strncasecmp(s, "sep", 3)) return 8; | |
780 | if (!strncasecmp(s, "oct", 3)) return 9; | |
781 | if (!strncasecmp(s, "nov", 3)) return 10; | |
782 | if (!strncasecmp(s, "dec", 3)) return 11; | |
783 | return -1; | |
5222c21d | 784 | |
f3df4c03 | 785 | } |
81582353 | 786 | |
f3df4c03 A |
787 | /* |
788 | * Match ctime() format - Mth [D]D [h]h:mm:ss | |
789 | */ | |
790 | bool | |
791 | asl_core_str_match_c_time(const char *target, time_t *tval, uint32_t *tlen) | |
792 | { | |
793 | uint32_t len, y; | |
794 | bool test; | |
795 | const char *p; | |
796 | struct tm t; | |
797 | time_t now; | |
5222c21d | 798 | |
f3df4c03 A |
799 | if (target == NULL) return false; |
800 | memset(&t, 0, sizeof(t)); | |
5222c21d | 801 | |
f3df4c03 A |
802 | /* determine current date */ |
803 | now = time(NULL); | |
804 | localtime_r(&now, &t); | |
805 | y = t.tm_year; | |
806 | memset(&t, 0, sizeof(t)); | |
807 | t.tm_year = y; | |
5222c21d | 808 | |
f3df4c03 A |
809 | /* Mth */ |
810 | p = target; | |
811 | t.tm_mon = _month_num(p); | |
812 | len = 3; | |
813 | if (t.tm_mon == -1) return false; | |
5222c21d | 814 | |
f3df4c03 A |
815 | /* whitespace */ |
816 | p += len; | |
817 | test = asl_core_str_match(p, WHITESPACE, 1, 0, MFLAG_INCLUDE, &len); | |
818 | if (!test) return false; | |
5222c21d | 819 | |
f3df4c03 A |
820 | /* [D]D */ |
821 | p += len; | |
822 | test = asl_core_str_match(p, DIGITS, 1, 2, MFLAG_INCLUDE, &len); | |
823 | if (!test) return false; | |
824 | t.tm_mday = asl_core_str_to_uint32(p, len); | |
825 | if (t.tm_mday > 31) return false; | |
5222c21d | 826 | |
f3df4c03 A |
827 | /* whitespace */ |
828 | p += len; | |
829 | test = asl_core_str_match(p, WHITESPACE, 1, 0, MFLAG_INCLUDE, &len); | |
830 | if (!test) return false; | |
5222c21d | 831 | |
f3df4c03 A |
832 | /* [h]h */ |
833 | p += len; | |
834 | test = asl_core_str_match(p, DIGITS, 1, 2, MFLAG_INCLUDE, &len); | |
835 | if (!test) return false; | |
836 | t.tm_hour = asl_core_str_to_uint32(p, len); | |
837 | if (t.tm_hour > 23) return false; | |
5222c21d | 838 | |
f3df4c03 A |
839 | /* : */ |
840 | p += len; | |
841 | if (*p != ':') return false; | |
81582353 | 842 | len = 1; |
5222c21d | 843 | |
f3df4c03 A |
844 | /* mm */ |
845 | p += len; | |
846 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
847 | if (!test) return false; | |
848 | t.tm_min = asl_core_str_to_uint32(p, len); | |
849 | if (t.tm_min > 59) return false; | |
5222c21d | 850 | |
f3df4c03 A |
851 | /* : */ |
852 | p += len; | |
853 | if (*p != ':') return false; | |
854 | len = 1; | |
5222c21d | 855 | |
f3df4c03 A |
856 | /* ss */ |
857 | p += len; | |
858 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
859 | if (!test) return false; | |
860 | t.tm_sec = asl_core_str_to_uint32(p, len); | |
861 | if (t.tm_sec > 59) return false; | |
5222c21d | 862 | |
f3df4c03 A |
863 | /* matched string must be followed by space, tab, newline (not counted in length) */ |
864 | p += len; | |
865 | if (*p != '\0') | |
81582353 | 866 | { |
f3df4c03 A |
867 | test = asl_core_str_match(p, " \t\n", 1, 1, MFLAG_INCLUDE, &len); |
868 | if (!test) return false; | |
81582353 | 869 | } |
5222c21d | 870 | |
f3df4c03 | 871 | t.tm_isdst = -1; |
5222c21d | 872 | |
f3df4c03 A |
873 | if (tlen != NULL) *tlen = p - target; |
874 | if (tval != NULL) *tval = mktime(&t); | |
5222c21d | 875 | |
f3df4c03 | 876 | return true; |
81582353 A |
877 | } |
878 | ||
f3df4c03 A |
879 | /* |
880 | * Match YYYY.[M]M.[D]D [h]h:mm:ss UTC | |
881 | */ | |
882 | static bool | |
883 | asl_core_str_match_dotted_time(const char *target, time_t *tval, uint32_t *tlen) | |
81582353 | 884 | { |
f3df4c03 A |
885 | uint32_t len; |
886 | bool test; | |
887 | const char *p; | |
888 | struct tm t; | |
5222c21d | 889 | |
f3df4c03 A |
890 | if (target == NULL) return false; |
891 | memset(&t, 0, sizeof(t)); | |
5222c21d | 892 | |
f3df4c03 A |
893 | /* YYYY */ |
894 | p = target; | |
895 | test = asl_core_str_match(p, DIGITS, 4, 4, MFLAG_INCLUDE, &len); | |
896 | if (!test) return false; | |
897 | t.tm_year = asl_core_str_to_uint32(p, len) - 1900; | |
5222c21d | 898 | |
f3df4c03 A |
899 | /* . */ |
900 | p += len; | |
901 | if (*p != '.') return false; | |
902 | len = 1; | |
5222c21d | 903 | |
f3df4c03 A |
904 | /* [M]M */ |
905 | p += len; | |
906 | test = asl_core_str_match(p, DIGITS, 1, 2, MFLAG_INCLUDE, &len); | |
907 | if (!test) return false; | |
908 | t.tm_mon = asl_core_str_to_uint32(p, len); | |
909 | if (t.tm_mon < 1) return false; | |
910 | if (t.tm_mon > 12) return false; | |
911 | t.tm_mon -= 1; | |
5222c21d | 912 | |
f3df4c03 A |
913 | /* . */ |
914 | p += len; | |
915 | if (*p != '.') return false; | |
916 | len = 1; | |
5222c21d | 917 | |
f3df4c03 A |
918 | /* [D]D */ |
919 | p += len; | |
920 | test = asl_core_str_match(p, DIGITS, 1, 2, MFLAG_INCLUDE, &len); | |
921 | if (!test) return false; | |
922 | t.tm_mday = asl_core_str_to_uint32(p, len); | |
923 | if (t.tm_mday > 31) return false; | |
5222c21d | 924 | |
f3df4c03 A |
925 | /* whitespace */ |
926 | p += len; | |
927 | test = asl_core_str_match(p, WHITESPACE, 1, 0, MFLAG_INCLUDE, &len); | |
928 | if (!test) return false; | |
5222c21d | 929 | |
f3df4c03 A |
930 | /* [h]h */ |
931 | p += len; | |
932 | test = asl_core_str_match(p, DIGITS, 1, 2, MFLAG_INCLUDE, &len); | |
933 | if (!test) return false; | |
934 | t.tm_hour = asl_core_str_to_uint32(p, len); | |
935 | if (t.tm_hour > 23) return false; | |
5222c21d | 936 | |
f3df4c03 A |
937 | /* : */ |
938 | p += len; | |
939 | if (*p != ':') return false; | |
940 | len = 1; | |
5222c21d | 941 | |
f3df4c03 A |
942 | /* mm */ |
943 | p += len; | |
944 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
945 | if (!test) return false; | |
946 | t.tm_min = asl_core_str_to_uint32(p, len); | |
947 | if (t.tm_min > 59) return false; | |
5222c21d | 948 | |
f3df4c03 A |
949 | /* : */ |
950 | p += len; | |
951 | if (*p != ':') return false; | |
952 | len = 1; | |
5222c21d | 953 | |
f3df4c03 A |
954 | /* ss */ |
955 | p += len; | |
956 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
957 | if (!test) return false; | |
958 | t.tm_sec = asl_core_str_to_uint32(p, len); | |
959 | if (t.tm_sec > 59) return false; | |
5222c21d | 960 | |
f3df4c03 A |
961 | /* whitespace */ |
962 | p += len; | |
963 | test = asl_core_str_match(p, WHITESPACE, 1, 0, MFLAG_INCLUDE, &len); | |
964 | if (!test) return false; | |
5222c21d | 965 | |
f3df4c03 A |
966 | /* UTC */ |
967 | p += len; | |
968 | if (strncmp(p, "UTC", 3)) return false; | |
969 | len = 3; | |
5222c21d | 970 | |
f3df4c03 A |
971 | /* matched string must be followed by space, tab, newline (not counted in length) */ |
972 | p += len; | |
973 | if (*p != '\0') | |
81582353 | 974 | { |
f3df4c03 A |
975 | test = asl_core_str_match(p, " \t\n", 1, 1, MFLAG_INCLUDE, &len); |
976 | if (!test) return false; | |
81582353 | 977 | } |
5222c21d | 978 | |
f3df4c03 A |
979 | if (tlen != NULL) *tlen = p - target; |
980 | if (tval != NULL) *tval = timegm(&t); | |
5222c21d | 981 | |
f3df4c03 | 982 | return true; |
81582353 A |
983 | } |
984 | ||
f3df4c03 A |
985 | /* |
986 | * Match YYYY[-]MM[-]DD[Tt]hh[:]hh[:]ss[Zz] or YYYY[-]MM[-]DD[Tt]hh[:]hh[:]ss[+-][H]H[[:]MM] | |
987 | */ | |
988 | static bool | |
989 | asl_core_str_match_iso_8601_time(const char *target, time_t *tval, uint32_t *tlen) | |
81582353 | 990 | { |
f3df4c03 A |
991 | uint32_t len; |
992 | bool test; | |
81582353 | 993 | const char *p; |
f3df4c03 A |
994 | struct tm t; |
995 | int32_t tzh, tzs, sign = -1; | |
5222c21d | 996 | |
f3df4c03 A |
997 | if (target == NULL) return false; |
998 | memset(&t, 0, sizeof(t)); | |
5222c21d | 999 | |
f3df4c03 A |
1000 | /* YYYY */ |
1001 | p = target; | |
1002 | test = asl_core_str_match(p, DIGITS, 4, 4, MFLAG_INCLUDE, &len); | |
1003 | if (!test) return false; | |
1004 | t.tm_year = asl_core_str_to_uint32(p, len) - 1900; | |
5222c21d | 1005 | |
f3df4c03 A |
1006 | /* [-] */ |
1007 | p += len; | |
1008 | test = asl_core_str_match_char(p, '-', 0, MFLAG_INCLUDE, &len); | |
1009 | if (!test) return false; | |
5222c21d | 1010 | |
f3df4c03 A |
1011 | /* MM */ |
1012 | p += len; | |
1013 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
1014 | if (!test) return false; | |
1015 | t.tm_mon = asl_core_str_to_uint32(p, len); | |
1016 | if (t.tm_mon < 1) return false; | |
1017 | if (t.tm_mon > 12) return false; | |
1018 | t.tm_mon -= 1; | |
5222c21d | 1019 | |
f3df4c03 A |
1020 | /* [-] */ |
1021 | p += len; | |
1022 | test = asl_core_str_match_char(p, '-', 0, MFLAG_INCLUDE, &len); | |
1023 | if (!test) return false; | |
5222c21d | 1024 | |
f3df4c03 A |
1025 | /* DD */ |
1026 | p += len; | |
1027 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
1028 | if (!test) return false; | |
1029 | t.tm_mday = asl_core_str_to_uint32(p, len); | |
1030 | if (t.tm_mday > 31) return false; | |
5222c21d | 1031 | |
f3df4c03 A |
1032 | /* T or t */ |
1033 | p += len; | |
1034 | test = asl_core_str_match(p, "Tt", 1, 1, MFLAG_INCLUDE, &len); | |
1035 | if (!test) return false; | |
5222c21d | 1036 | |
f3df4c03 A |
1037 | /* hh */ |
1038 | p += len; | |
1039 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
1040 | if (!test) return false; | |
1041 | t.tm_hour = asl_core_str_to_uint32(p, len); | |
1042 | if (t.tm_hour > 23) return false; | |
5222c21d | 1043 | |
f3df4c03 A |
1044 | /* [:] */ |
1045 | p += len; | |
1046 | test = asl_core_str_match_char(p, ':', 0, MFLAG_INCLUDE, &len); | |
1047 | if (!test) return false; | |
5222c21d | 1048 | |
f3df4c03 A |
1049 | /* mm */ |
1050 | p += len; | |
1051 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
1052 | if (!test) return false; | |
1053 | t.tm_min = asl_core_str_to_uint32(p, len); | |
1054 | if (t.tm_min > 59) return false; | |
5222c21d | 1055 | |
f3df4c03 A |
1056 | /* [:] */ |
1057 | p += len; | |
1058 | test = asl_core_str_match_char(p, ':', 0, MFLAG_INCLUDE, &len); | |
1059 | if (!test) return false; | |
5222c21d | 1060 | |
f3df4c03 A |
1061 | /* ss */ |
1062 | p += len; | |
1063 | test = asl_core_str_match(p, DIGITS, 2, 2, MFLAG_INCLUDE, &len); | |
1064 | if (!test) return false; | |
1065 | t.tm_sec = asl_core_str_to_uint32(p, len); | |
1066 | if (t.tm_sec > 59) return false; | |
5222c21d | 1067 | |
f3df4c03 | 1068 | p += len; |
5222c21d | 1069 | |
f3df4c03 A |
1070 | /* default to local time if we hit the end of the string */ |
1071 | if ((*p == '\0') || (*p == ' ') || (*p == '\t') || (*p == '\n')) | |
81582353 | 1072 | { |
f3df4c03 | 1073 | t.tm_isdst = -1; |
5222c21d | 1074 | |
f3df4c03 A |
1075 | if (tlen != NULL) *tlen = p - target; |
1076 | if (tval != NULL) *tval = mktime(&t); | |
5222c21d | 1077 | |
f3df4c03 A |
1078 | return true; |
1079 | } | |
5222c21d | 1080 | |
f3df4c03 A |
1081 | /* Z, z, +, or - */ |
1082 | test = asl_core_str_match(p, "Zz+-", 1, 1, MFLAG_INCLUDE, &len); | |
1083 | if (!test) return false; | |
5222c21d | 1084 | |
f3df4c03 A |
1085 | if ((*p == 'Z') || (*p == 'z')) |
1086 | { | |
1087 | /* matched string must be followed by space, tab, newline (not counted in length) */ | |
1088 | p += len; | |
1089 | if (*p != '\0') | |
81582353 | 1090 | { |
f3df4c03 A |
1091 | test = asl_core_str_match(p, " \t\n", 1, 1, MFLAG_INCLUDE, &len); |
1092 | if (!test) return false; | |
81582353 | 1093 | } |
5222c21d | 1094 | |
f3df4c03 A |
1095 | if (tlen != NULL) *tlen = p - target; |
1096 | if (tval != NULL) *tval = timegm(&t); | |
5222c21d | 1097 | |
f3df4c03 | 1098 | return true; |
81582353 | 1099 | } |
5222c21d | 1100 | |
f3df4c03 | 1101 | if (*p == '-') sign = 1; |
5222c21d | 1102 | |
f3df4c03 A |
1103 | /* [h]h */ |
1104 | p += len; | |
1105 | test = asl_core_str_match(p, DIGITS, 1, 2, MFLAG_INCLUDE, &len); | |
1106 | if (!test) return false; | |
1107 | tzh = asl_core_str_to_uint32(p, len); | |
1108 | if (tzh > 23) return false; | |
5222c21d | 1109 | |
f3df4c03 A |
1110 | /* [:] */ |
1111 | p += len; | |
1112 | test = asl_core_str_match_char(p, ':', 0, MFLAG_INCLUDE, &len); | |
1113 | if (!test) return false; | |
5222c21d | 1114 | |
f3df4c03 A |
1115 | /* mm */ |
1116 | p += len; | |
1117 | test = asl_core_str_match(p, DIGITS, 0, 2, MFLAG_INCLUDE, &len); | |
1118 | if (!test) return false; | |
1119 | tzs = asl_core_str_to_uint32(p, len); | |
1120 | if (tzs > 59) return false; | |
5222c21d | 1121 | |
f3df4c03 | 1122 | t.tm_sec += (sign * (tzh * SECONDS_PER_HOUR) + (tzs * SECONDS_PER_MINUTE)); |
5222c21d | 1123 | |
f3df4c03 A |
1124 | /* matched string must be followed by space, tab, newline (not counted in length) */ |
1125 | p += len; | |
1126 | if (*p != '\0') | |
1127 | { | |
1128 | test = asl_core_str_match(p, " \t\n", 1, 1, MFLAG_INCLUDE, &len); | |
1129 | if (!test) return false; | |
1130 | } | |
5222c21d | 1131 | |
f3df4c03 A |
1132 | if (tlen != NULL) *tlen = p - target; |
1133 | if (tval != NULL) *tval = timegm(&t); | |
5222c21d | 1134 | |
f3df4c03 | 1135 | return true; |
81582353 A |
1136 | } |
1137 | ||
f3df4c03 A |
1138 | time_t |
1139 | asl_core_parse_time(const char *in, uint32_t *tlen) | |
81582353 | 1140 | { |
f3df4c03 A |
1141 | time_t tval = 0; |
1142 | uint32_t inlen; | |
5222c21d | 1143 | |
f3df4c03 | 1144 | if (tlen != NULL) *tlen = 0; |
81582353 | 1145 | |
f3df4c03 | 1146 | if (in == NULL) return -1; |
5222c21d | 1147 | |
f3df4c03 A |
1148 | /* |
1149 | * Heuristics to determine the string format. | |
1150 | * Warning: this code must be checked and may need to be adjusted if new formats are added. | |
1151 | */ | |
1152 | inlen = strlen(in); | |
1153 | if (inlen == 0) return -1; | |
5222c21d | 1154 | |
f3df4c03 A |
1155 | /* leading plus or minus means it must be a relative time */ |
1156 | if ((in[0] == '+') || (in[0] == '-')) | |
81582353 | 1157 | { |
f3df4c03 A |
1158 | if (asl_core_str_match_absolute_or_relative_time(in, &tval, tlen)) return tval; |
1159 | return -1; | |
81582353 | 1160 | } |
5222c21d | 1161 | |
f3df4c03 A |
1162 | /* leading alphabetic char means it must be ctime() format */ |
1163 | if (((in[0] >= 'a') && (in[0] <= 'z')) || ((in[0] >= 'A') && (in[0] <= 'Z'))) | |
81582353 | 1164 | { |
f3df4c03 A |
1165 | if (asl_core_str_match_c_time(in, &tval, tlen)) return tval; |
1166 | return -1; | |
81582353 | 1167 | } |
5222c21d | 1168 | |
f3df4c03 | 1169 | /* only absolute, dotted, or iso8601 formats at this point */ |
5222c21d | 1170 | |
f3df4c03 A |
1171 | /* one to for chars means it must be absolute */ |
1172 | if (inlen < 5) | |
81582353 | 1173 | { |
f3df4c03 A |
1174 | if (asl_core_str_match_absolute_or_relative_time(in, &tval, tlen)) return tval; |
1175 | return -1; | |
81582353 | 1176 | } |
5222c21d | 1177 | |
f3df4c03 A |
1178 | /* check for dot */ |
1179 | if (in[4] == '.') | |
81582353 | 1180 | { |
f3df4c03 A |
1181 | if (asl_core_str_match_dotted_time(in, &tval, tlen)) return tval; |
1182 | return -1; | |
81582353 | 1183 | } |
5222c21d | 1184 | |
f3df4c03 | 1185 | /* only absolute or iso8601 at this point */ |
5222c21d | 1186 | |
f3df4c03 A |
1187 | /* check for absolute first, since that's quicker */ |
1188 | if (asl_core_str_match_absolute_or_relative_time(in, &tval, tlen)) return tval; | |
5222c21d | 1189 | |
f3df4c03 | 1190 | if (asl_core_str_match_iso_8601_time(in, &tval, tlen)) return tval; |
5222c21d | 1191 | |
f3df4c03 | 1192 | return -1; |
81582353 A |
1193 | } |
1194 | ||
f3df4c03 A |
1195 | /* |
1196 | * asl_parse_time is old SPI used all over the place. | |
1197 | */ | |
1198 | time_t | |
1199 | asl_parse_time(const char *in) | |
81582353 | 1200 | { |
f3df4c03 | 1201 | return asl_core_parse_time(in, NULL); |
81582353 | 1202 | } |