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Fix crash resulting from bad month check in core_bind.cpp 

Also, make it clear that day is 0-based. This might cause very slight differcies in existing games.
Fixes #18221

(cherry picked from commit 4b9cf93338)
This commit is contained in:
Bojidar Marinov 2018-04-16 12:15:17 +03:00 committed by Hein-Pieter van Braam
parent 4eed7cb9b2
commit 44f4c8e745
1 changed files with 7 additions and 7 deletions
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14
core/bind/core_bind.cpp
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@ -623,8 +623,8 @@ uint64_t _OS::get_unix_time_from_datetime(Dictionary datetime) const {
unsigned int second = ((datetime.has(SECOND_KEY)) ? static_cast<unsigned int>(datetime[SECOND_KEY]) : 0);
unsigned int minute = ((datetime.has(MINUTE_KEY)) ? static_cast<unsigned int>(datetime[MINUTE_KEY]) : 0);
unsigned int hour = ((datetime.has(HOUR_KEY)) ? static_cast<unsigned int>(datetime[HOUR_KEY]) : 0);
unsigned int day = ((datetime.has(DAY_KEY)) ? static_cast<unsigned int>(datetime[DAY_KEY]) : 0);
unsigned int month = ((datetime.has(MONTH_KEY)) ? static_cast<unsigned int>(datetime[MONTH_KEY]) - 1 : 0);
unsigned int day = ((datetime.has(DAY_KEY)) ? static_cast<unsigned int>(datetime[DAY_KEY]) : 1);
unsigned int month = ((datetime.has(MONTH_KEY)) ? static_cast<unsigned int>(datetime[MONTH_KEY]) : 1);
unsigned int year = ((datetime.has(YEAR_KEY)) ? static_cast<unsigned int>(datetime[YEAR_KEY]) : 0);
/// How many days come before each month (0-12)
@ -644,15 +644,15 @@ uint64_t _OS::get_unix_time_from_datetime(Dictionary datetime) const {
ERR_EXPLAIN("Invalid hour value of: " + itos(hour));
ERR_FAIL_COND_V(hour > 23, 0);
ERR_EXPLAIN("Invalid month value of: " + itos(month + 1));
ERR_FAIL_COND_V(month + 1 > 12, 0);
ERR_EXPLAIN("Invalid month value of: " + itos(month));
ERR_FAIL_COND_V(month > 12 || month == 0, 0);
// Do this check after month is tested as valid
ERR_EXPLAIN("Invalid day value of: " + itos(day) + " which is larger than " + itos(MONTH_DAYS_TABLE[LEAPYEAR(year)][month]));
ERR_FAIL_COND_V(day > MONTH_DAYS_TABLE[LEAPYEAR(year)][month], 0);
ERR_EXPLAIN("Invalid day value of: " + itos(day) + " which is larger than " + itos(MONTH_DAYS_TABLE[LEAPYEAR(year)][month - 1]) + " or 0");
ERR_FAIL_COND_V(day > MONTH_DAYS_TABLE[LEAPYEAR(year)][month - 1] || day == 0, 0);
// Calculate all the seconds from months past in this year
uint64_t SECONDS_FROM_MONTHS_PAST_THIS_YEAR = DAYS_PAST_THIS_YEAR_TABLE[LEAPYEAR(year)][month] * SECONDS_PER_DAY;
uint64_t SECONDS_FROM_MONTHS_PAST_THIS_YEAR = DAYS_PAST_THIS_YEAR_TABLE[LEAPYEAR(year)][month - 1] * SECONDS_PER_DAY;
uint64_t SECONDS_FROM_YEARS_PAST = 0;
for (unsigned int iyear = EPOCH_YR; iyear < year; iyear++) {