diff options
Diffstat (limited to 'src/third_party/timelib-2022.02/timelib.c')
-rw-r--r-- | src/third_party/timelib-2022.02/timelib.c | 383 |
1 files changed, 383 insertions, 0 deletions
diff --git a/src/third_party/timelib-2022.02/timelib.c b/src/third_party/timelib-2022.02/timelib.c new file mode 100644 index 00000000000..d42c69bbd6f --- /dev/null +++ b/src/third_party/timelib-2022.02/timelib.c @@ -0,0 +1,383 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2015-2019 Derick Rethans + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * Portions copyright (c) 1998-2017 Zend Technologies Ltd. + * + * The timelib_strcasecmp and timelib_strncasecmp are taken from PHP's + * Zend/zend_operators.[hc] source files. + * + */ + +#include "timelib.h" +#include "timelib_private.h" +#include <ctype.h> +#include <math.h> + +#define TIMELIB_LLABS(y) (y < 0 ? (y * -1) : y) + +const char *timelib_error_messages[10] = { + "No error", + "Cannot allocate buffer for parsing", + "Corrupt tzfile: The transitions in the file don't always increase", + "Corrupt tzfile: The expected 64-bit preamble is missing", + "Corrupt tzfile: No abbreviation could be found for a transition", + "The version used in this timezone identifier is unsupported", + "No timezone with this name could be found", + "A 'slim' timezone file has been detected", + "The embedded POSIX string is not valid", + "The embedded POSIX string is empty" +}; + +const char *timelib_get_error_message(int error_code) +{ + int entries = sizeof(timelib_error_messages) / sizeof(char*); + + if (error_code >= 0 && error_code < entries) { + return timelib_error_messages[error_code]; + } + return "Unknown error code"; +} + +timelib_time* timelib_time_ctor(void) +{ + timelib_time *t; + t = timelib_calloc(1, sizeof(timelib_time)); + + return t; +} + +void timelib_time_dtor(timelib_time* t) +{ + TIMELIB_TIME_FREE(t->tz_abbr); + TIMELIB_TIME_FREE(t); +} + +int timelib_time_compare(timelib_time *t1, timelib_time *t2) +{ + if (t1->sse == t2->sse) { + if (t1->us == t2->us) { + return 0; + } + + return (t1->us < t2->us) ? -1 : 1; + } + + return (t1->sse < t2->sse) ? -1 : 1; +} + +timelib_time* timelib_time_clone(timelib_time *orig) +{ + timelib_time *tmp = timelib_time_ctor(); + memcpy(tmp, orig, sizeof(timelib_time)); + if (orig->tz_abbr) { + tmp->tz_abbr = timelib_strdup(orig->tz_abbr); + } + if (orig->tz_info) { + tmp->tz_info = orig->tz_info; + } + return tmp; +} + +timelib_rel_time* timelib_rel_time_ctor(void) +{ + timelib_rel_time *t; + t = timelib_calloc(1, sizeof(timelib_rel_time)); + + return t; +} + +void timelib_rel_time_dtor(timelib_rel_time* t) +{ + TIMELIB_TIME_FREE(t); +} + +timelib_rel_time* timelib_rel_time_clone(timelib_rel_time *rel) +{ + timelib_rel_time *tmp = timelib_rel_time_ctor(); + memcpy(tmp, rel, sizeof(timelib_rel_time)); + return tmp; +} + +void timelib_time_tz_abbr_update(timelib_time* tm, const char* tz_abbr) +{ + unsigned int i; + size_t tz_abbr_len = strlen(tz_abbr); + + TIMELIB_TIME_FREE(tm->tz_abbr); + tm->tz_abbr = timelib_strdup(tz_abbr); + for (i = 0; i < tz_abbr_len; i++) { + tm->tz_abbr[i] = toupper(tz_abbr[i]); + } +} + +timelib_time_offset* timelib_time_offset_ctor(void) +{ + timelib_time_offset *t; + t = timelib_calloc(1, sizeof(timelib_time_offset)); + + return t; +} + +void timelib_time_offset_dtor(timelib_time_offset* t) +{ + TIMELIB_TIME_FREE(t->abbr); + TIMELIB_TIME_FREE(t); +} + +char *timelib_get_tz_abbr_ptr(timelib_time *t) +{ + if (!t->sse_uptodate) { + timelib_update_ts(t, NULL); + }; + return t->tz_abbr; +} + +void timelib_error_container_dtor(timelib_error_container *errors) +{ + int i; + + for (i = 0; i < errors->warning_count; i++) { + timelib_free(errors->warning_messages[i].message); + } + timelib_free(errors->warning_messages); + for (i = 0; i < errors->error_count; i++) { + timelib_free(errors->error_messages[i].message); + } + timelib_free(errors->error_messages); + timelib_free(errors); +} + +timelib_long timelib_date_to_int(timelib_time *d, int *error) +{ + timelib_sll ts; + + ts = d->sse; + + if (ts < TIMELIB_LONG_MIN || ts > TIMELIB_LONG_MAX) { + if (error) { + *error = 1; + } + return 0; + } + if (error) { + *error = 0; + } + return (timelib_long) d->sse; +} + +void timelib_decimal_hour_to_hms(double h, int *hour, int *min, int *sec) +{ + if (h > 0) { + *hour = floor(h); + *min = floor((h - *hour) * 60); + *sec = (h - *hour - ((float) *min / 60)) * 3600; + } else { + *hour = ceil(h); + *min = 0 - ceil((h - *hour) * 60); + *sec = 0 - (h - *hour - ((float) *min / -60)) * 3600; + } +} + +void timelib_hms_to_decimal_hour(int hour, int min, int sec, double *h) +{ + if (hour >= 0) { + *h = ((double)hour + (double)min / 60 + (double)sec / 3600); + } else { + *h = ((double)hour - (double)min / 60 - (double)sec / 3600); + } +} + +void timelib_hmsf_to_decimal_hour(int hour, int min, int sec, int us, double *h) +{ + if (hour >= 0) { + *h = ((double)hour + (double)min / MINS_PER_HOUR + (double)sec / SECS_PER_HOUR) + (double)us / USECS_PER_HOUR; + } else { + *h = ((double)hour - (double)min / MINS_PER_HOUR - (double)sec / SECS_PER_HOUR) - (double)us / USECS_PER_HOUR; + } +} + +timelib_sll timelib_hms_to_seconds(timelib_sll h, timelib_sll m, timelib_sll s) +{ + return (h * SECS_PER_HOUR) + (m * 60) + s; +} + +static const unsigned char timelib_tolower_map[256] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, + 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, + 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, + 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, + 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, + 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, + 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, + 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, + 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, + 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, + 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, + 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, + 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff +}; + +#define timelib_tolower(c) (timelib_tolower_map[(unsigned char)(c)]) +#undef MIN +#undef MAX +#define MAX(a, b) (((a)>(b))?(a):(b)) +#define MIN(a, b) (((a)<(b))?(a):(b)) + +int timelib_strcasecmp(const char *s1, const char *s2) +{ + size_t len; + size_t len1 = strlen(s1); + size_t len2 = strlen(s2); + int c1, c2; + + if (s1 == s2) { + return 0; + } + + len = MIN(len1, len2); + while (len--) { + c1 = timelib_tolower(*(unsigned char *)s1++); + c2 = timelib_tolower(*(unsigned char *)s2++); + if (c1 != c2) { + return c1 - c2; + } + } + + return (int)(len1 - len2); +} + +int timelib_strncasecmp(const char *s1, const char *s2, size_t length) +{ + size_t len; + size_t len1 = strlen(s1); + size_t len2 = strlen(s2); + int c1, c2; + + if (s1 == s2) { + return 0; + } + len = MIN(length, MIN(len1, len2)); + while (len--) { + c1 = timelib_tolower(*(unsigned char *)s1++); + c2 = timelib_tolower(*(unsigned char *)s2++); + if (c1 != c2) { + return c1 - c2; + } + } + + return (int)(MIN(length, len1) - MIN(length, len2)); +} + +#undef MIN +#undef MAX + +void timelib_dump_date(timelib_time *d, int options) +{ + if ((options & 2) == 2) { + printf("TYPE: %d ", d->zone_type); + } + printf("TS: %lld | %s%04lld-%02lld-%02lld %02lld:%02lld:%02lld", + d->sse, d->y < 0 ? "-" : "", TIMELIB_LLABS(d->y), d->m, d->d, d->h, d->i, d->s); + if (d->us > 0) { + printf(" 0.%06lld", d->us); + } + + if (d->is_localtime) { + switch (d->zone_type) { + case TIMELIB_ZONETYPE_OFFSET: /* Only offset */ + printf(" GMT %05d%s", d->z, d->dst == 1 ? " (DST)" : ""); + break; + case TIMELIB_ZONETYPE_ID: /* Timezone struct */ + /* Show abbreviation if wanted */ + if (d->tz_abbr) { + printf(" %s", d->tz_abbr); + } + /* Do we have a TimeZone struct? */ + if (d->tz_info) { + printf(" %s", d->tz_info->name); + } + break; + case TIMELIB_ZONETYPE_ABBR: + printf(" %s", d->tz_abbr); + printf(" %05d%s", d->z, d->dst == 1 ? " (DST)" : ""); + break; + } + } + + if ((options & 1) == 1) { + if (d->have_relative) { + printf("%3lldY %3lldM %3lldD / %3lldH %3lldM %3lldS", + d->relative.y, d->relative.m, d->relative.d, d->relative.h, d->relative.i, d->relative.s); + if (d->relative.us) { + printf(" 0.%06lld", d->relative.us); + } + if (d->relative.first_last_day_of != 0) { + switch (d->relative.first_last_day_of) { + case 1: + printf(" / first day of"); + break; + case 2: + printf(" / last day of"); + break; + } + } + if (d->relative.have_weekday_relative) { + printf(" / %d.%d", d->relative.weekday, d->relative.weekday_behavior); + } + if (d->relative.have_special_relative) { + switch (d->relative.special.type) { + case TIMELIB_SPECIAL_WEEKDAY: + printf(" / %lld weekday", d->relative.special.amount); + break; + case TIMELIB_SPECIAL_DAY_OF_WEEK_IN_MONTH: + printf(" / x y of z month"); + break; + case TIMELIB_SPECIAL_LAST_DAY_OF_WEEK_IN_MONTH: + printf(" / last y of z month"); + break; + } + } + } + } + printf("\n"); +} + +void timelib_dump_rel_time(timelib_rel_time *d) +{ + printf("%3lldY %3lldM %3lldD / %3lldH %3lldM %3lldS (days: %lld)%s", + d->y, d->m, d->d, d->h, d->i, d->s, d->days, d->invert ? " inverted" : ""); + if (d->first_last_day_of != 0) { + switch (d->first_last_day_of) { + case 1: + printf(" / first day of"); + break; + case 2: + printf(" / last day of"); + break; + } + } + printf("\n"); +} |