1 /*
2 * The MIT License (MIT)
3 *
4 * Copyright (c) 2015 Derick Rethans
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 #include "timelib.h"
26 #include <ctype.h>
27 #include <math.h>
28
29 #define TIMELIB_TIME_FREE(m) \
30 if (m) { \
31 timelib_free(m); \
32 m = NULL; \
33 } \
34
35 #define TIMELIB_LLABS(y) (y < 0 ? (y * -1) : y)
36
37 #define HOUR(a) (int)(a * 60)
38
timelib_time_ctor(void)39 timelib_time* timelib_time_ctor(void)
40 {
41 timelib_time *t;
42 t = timelib_calloc(1, sizeof(timelib_time));
43
44 return t;
45 }
46
timelib_rel_time_ctor(void)47 timelib_rel_time* timelib_rel_time_ctor(void)
48 {
49 timelib_rel_time *t;
50 t = timelib_calloc(1, sizeof(timelib_rel_time));
51
52 return t;
53 }
54
timelib_time_clone(timelib_time * orig)55 timelib_time* timelib_time_clone(timelib_time *orig)
56 {
57 timelib_time *tmp = timelib_time_ctor();
58 memcpy(tmp, orig, sizeof(timelib_time));
59 if (orig->tz_abbr) {
60 tmp->tz_abbr = timelib_strdup(orig->tz_abbr);
61 }
62 if (orig->tz_info) {
63 tmp->tz_info = orig->tz_info;
64 }
65 return tmp;
66 }
67
timelib_time_compare(timelib_time * t1,timelib_time * t2)68 int timelib_time_compare(timelib_time *t1, timelib_time *t2)
69 {
70 if (t1->sse == t2->sse) {
71 if (t1->f == t2->f) {
72 return 0;
73 }
74
75 if (t1->sse < 0) {
76 return (t1->f < t2->f) ? 1 : -1;
77 } else {
78 return (t1->f < t2->f) ? -1 : 1;
79 }
80 }
81
82 return (t1->sse < t2->sse) ? -1 : 1;
83 }
84
timelib_rel_time_clone(timelib_rel_time * rel)85 timelib_rel_time* timelib_rel_time_clone(timelib_rel_time *rel)
86 {
87 timelib_rel_time *tmp = timelib_rel_time_ctor();
88 memcpy(tmp, rel, sizeof(timelib_rel_time));
89 return tmp;
90 }
91
timelib_time_tz_abbr_update(timelib_time * tm,char * tz_abbr)92 void timelib_time_tz_abbr_update(timelib_time* tm, char* tz_abbr)
93 {
94 unsigned int i;
95 size_t tz_abbr_len = strlen(tz_abbr);
96
97 TIMELIB_TIME_FREE(tm->tz_abbr);
98 tm->tz_abbr = timelib_strdup(tz_abbr);
99 for (i = 0; i < tz_abbr_len; i++) {
100 tm->tz_abbr[i] = toupper(tz_abbr[i]);
101 }
102 }
103
timelib_time_dtor(timelib_time * t)104 void timelib_time_dtor(timelib_time* t)
105 {
106 TIMELIB_TIME_FREE(t->tz_abbr);
107 TIMELIB_TIME_FREE(t);
108 }
109
timelib_rel_time_dtor(timelib_rel_time * t)110 void timelib_rel_time_dtor(timelib_rel_time* t)
111 {
112 TIMELIB_TIME_FREE(t);
113 }
114
timelib_time_offset_ctor(void)115 timelib_time_offset* timelib_time_offset_ctor(void)
116 {
117 timelib_time_offset *t;
118 t = timelib_calloc(1, sizeof(timelib_time_offset));
119
120 return t;
121 }
122
timelib_time_offset_dtor(timelib_time_offset * t)123 void timelib_time_offset_dtor(timelib_time_offset* t)
124 {
125 TIMELIB_TIME_FREE(t->abbr);
126 TIMELIB_TIME_FREE(t);
127 }
128
timelib_tzinfo_ctor(char * name)129 timelib_tzinfo* timelib_tzinfo_ctor(char *name)
130 {
131 timelib_tzinfo *t;
132 t = timelib_calloc(1, sizeof(timelib_tzinfo));
133 t->name = timelib_strdup(name);
134
135 return t;
136 }
137
timelib_tzinfo_clone(timelib_tzinfo * tz)138 timelib_tzinfo *timelib_tzinfo_clone(timelib_tzinfo *tz)
139 {
140 timelib_tzinfo *tmp = timelib_tzinfo_ctor(tz->name);
141 tmp->bit32.ttisgmtcnt = tz->bit32.ttisgmtcnt;
142 tmp->bit32.ttisstdcnt = tz->bit32.ttisstdcnt;
143 tmp->bit32.leapcnt = tz->bit32.leapcnt;
144 tmp->bit32.timecnt = tz->bit32.timecnt;
145 tmp->bit32.typecnt = tz->bit32.typecnt;
146 tmp->bit32.charcnt = tz->bit32.charcnt;
147
148 tmp->trans = (int32_t *) timelib_malloc(tz->bit32.timecnt * sizeof(int32_t));
149 tmp->trans_idx = (unsigned char*) timelib_malloc(tz->bit32.timecnt * sizeof(unsigned char));
150 memcpy(tmp->trans, tz->trans, tz->bit32.timecnt * sizeof(int32_t));
151 memcpy(tmp->trans_idx, tz->trans_idx, tz->bit32.timecnt * sizeof(unsigned char));
152
153 tmp->type = (ttinfo*) timelib_malloc(tz->bit32.typecnt * sizeof(struct ttinfo));
154 memcpy(tmp->type, tz->type, tz->bit32.typecnt * sizeof(struct ttinfo));
155
156 tmp->timezone_abbr = (char*) timelib_malloc(tz->bit32.charcnt);
157 memcpy(tmp->timezone_abbr, tz->timezone_abbr, tz->bit32.charcnt);
158
159 tmp->leap_times = (tlinfo*) timelib_malloc(tz->bit32.leapcnt * sizeof(tlinfo));
160 memcpy(tmp->leap_times, tz->leap_times, tz->bit32.leapcnt * sizeof(tlinfo));
161
162 return tmp;
163 }
164
timelib_tzinfo_dtor(timelib_tzinfo * tz)165 void timelib_tzinfo_dtor(timelib_tzinfo *tz)
166 {
167 TIMELIB_TIME_FREE(tz->name);
168 TIMELIB_TIME_FREE(tz->trans);
169 TIMELIB_TIME_FREE(tz->trans_idx);
170 TIMELIB_TIME_FREE(tz->type);
171 TIMELIB_TIME_FREE(tz->timezone_abbr);
172 TIMELIB_TIME_FREE(tz->leap_times);
173 TIMELIB_TIME_FREE(tz->location.comments);
174 TIMELIB_TIME_FREE(tz);
175 tz = NULL;
176 }
177
timelib_get_tz_abbr_ptr(timelib_time * t)178 char *timelib_get_tz_abbr_ptr(timelib_time *t)
179 {
180 if (!t->sse_uptodate) {
181 timelib_update_ts(t, NULL);
182 };
183 return t->tz_abbr;
184 }
185
timelib_error_container_dtor(timelib_error_container * errors)186 void timelib_error_container_dtor(timelib_error_container *errors)
187 {
188 int i;
189
190 for (i = 0; i < errors->warning_count; i++) {
191 timelib_free(errors->warning_messages[i].message);
192 }
193 timelib_free(errors->warning_messages);
194 for (i = 0; i < errors->error_count; i++) {
195 timelib_free(errors->error_messages[i].message);
196 }
197 timelib_free(errors->error_messages);
198 timelib_free(errors);
199 }
200
timelib_date_to_int(timelib_time * d,int * error)201 timelib_long timelib_date_to_int(timelib_time *d, int *error)
202 {
203 timelib_sll ts;
204
205 ts = d->sse;
206
207 if (ts < TIMELIB_LONG_MIN || ts > TIMELIB_LONG_MAX) {
208 if (error) {
209 *error = 1;
210 }
211 return 0;
212 }
213 if (error) {
214 *error = 0;
215 }
216 return (timelib_long) d->sse;
217 }
218
timelib_decimal_hour_to_hms(double h,int * hour,int * min,int * sec)219 void timelib_decimal_hour_to_hms(double h, int *hour, int *min, int *sec)
220 {
221 *hour = floor(h);
222 *min = floor((h - *hour) * 60);
223 *sec = (h - *hour - ((float) *min / 60)) * 3600;
224 }
225
timelib_dump_date(timelib_time * d,int options)226 void timelib_dump_date(timelib_time *d, int options)
227 {
228 if ((options & 2) == 2) {
229 printf("TYPE: %d ", d->zone_type);
230 }
231 printf("TS: %lld | %s%04lld-%02lld-%02lld %02lld:%02lld:%02lld",
232 d->sse, d->y < 0 ? "-" : "", TIMELIB_LLABS(d->y), d->m, d->d, d->h, d->i, d->s);
233 if (d->f > +0.0) {
234 printf(" %.5f", d->f);
235 }
236
237 if (d->is_localtime) {
238 switch (d->zone_type) {
239 case TIMELIB_ZONETYPE_OFFSET: /* Only offset */
240 printf(" GMT %05d%s", d->z, d->dst == 1 ? " (DST)" : "");
241 break;
242 case TIMELIB_ZONETYPE_ID: /* Timezone struct */
243 /* Show abbreviation if wanted */
244 if (d->tz_abbr) {
245 printf(" %s", d->tz_abbr);
246 }
247 /* Do we have a TimeZone struct? */
248 if (d->tz_info) {
249 printf(" %s", d->tz_info->name);
250 }
251 break;
252 case TIMELIB_ZONETYPE_ABBR:
253 printf(" %s", d->tz_abbr);
254 printf(" %05d%s", d->z, d->dst == 1 ? " (DST)" : "");
255 break;
256 }
257 }
258
259 if ((options & 1) == 1) {
260 if (d->have_relative) {
261 printf("%3lldY %3lldM %3lldD / %3lldH %3lldM %3lldS",
262 d->relative.y, d->relative.m, d->relative.d, d->relative.h, d->relative.i, d->relative.s);
263 if (d->relative.first_last_day_of != 0) {
264 switch (d->relative.first_last_day_of) {
265 case 1:
266 printf(" / first day of");
267 break;
268 case 2:
269 printf(" / last day of");
270 break;
271 }
272 }
273 if (d->relative.have_weekday_relative) {
274 printf(" / %d.%d", d->relative.weekday, d->relative.weekday_behavior);
275 }
276 if (d->relative.have_special_relative) {
277 switch (d->relative.special.type) {
278 case TIMELIB_SPECIAL_WEEKDAY:
279 printf(" / %lld weekday", d->relative.special.amount);
280 break;
281 case TIMELIB_SPECIAL_DAY_OF_WEEK_IN_MONTH:
282 printf(" / x y of z month");
283 break;
284 case TIMELIB_SPECIAL_LAST_DAY_OF_WEEK_IN_MONTH:
285 printf(" / last y of z month");
286 break;
287 }
288 }
289 }
290 }
291 printf("\n");
292 }
293
timelib_dump_rel_time(timelib_rel_time * d)294 void timelib_dump_rel_time(timelib_rel_time *d)
295 {
296 printf("%3lldY %3lldM %3lldD / %3lldH %3lldM %3lldS (days: %lld)%s",
297 d->y, d->m, d->d, d->h, d->i, d->s, d->days, d->invert ? " inverted" : "");
298 if (d->first_last_day_of != 0) {
299 switch (d->first_last_day_of) {
300 case 1:
301 printf(" / first day of");
302 break;
303 case 2:
304 printf(" / last day of");
305 break;
306 }
307 }
308 printf("\n");
309 }
310
timelib_parse_tz_cor(char ** ptr)311 timelib_long timelib_parse_tz_cor(char **ptr)
312 {
313 char *begin = *ptr, *end;
314 timelib_long tmp;
315
316 while (isdigit(**ptr) || **ptr == ':') {
317 ++*ptr;
318 }
319 end = *ptr;
320 switch (end - begin) {
321 case 1: /* H */
322 case 2: /* HH */
323 return HOUR(strtol(begin, NULL, 10));
324 break;
325 case 3: /* H:M */
326 case 4: /* H:MM, HH:M, HHMM */
327 if (begin[1] == ':') {
328 tmp = HOUR(strtol(begin, NULL, 10)) + strtol(begin + 2, NULL, 10);
329 return tmp;
330 } else if (begin[2] == ':') {
331 tmp = HOUR(strtol(begin, NULL, 10)) + strtol(begin + 3, NULL, 10);
332 return tmp;
333 } else {
334 tmp = strtol(begin, NULL, 10);
335 return HOUR(tmp / 100) + tmp % 100;
336 }
337 case 5: /* HH:MM */
338 tmp = HOUR(strtol(begin, NULL, 10)) + strtol(begin + 3, NULL, 10);
339 return tmp;
340 }
341 return 0;
342 }
343
