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Merge pull request #5029 from haydenroche5/asn1_time_diff_2038

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This commit is contained in:
Chris Conlon
2022-04-07 16:45:11 -06:00
committed by GitHub
parent 5231dc63fa 161d74879a
commit 9859492222
1 changed files with 18 additions and 13 deletions
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31
src/ssl.c
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@ -24345,19 +24345,24 @@ int wolfSSL_ASN1_TIME_check(const WOLFSSL_ASN1_TIME* a)
}
/*
* From curl.
* time2epoch: time stamp to seconds since epoch in GMT time zone. Similar to
* mktime but for GMT only.
* Convert time to Unix time (GMT).
*/
static long long time2epoch(int sec, int min, int hour, int mday, int mon,
int year)
static long long TimeToUnixTime(int sec, int min, int hour, int mday, int mon,
int year)
{
/* Number of cumulative days from the previous months, starting from
* beginning of January. */
static const int monthDaysCumulative [12] = {
0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
};
int leapDays = year - (mon <= 1);
leapDays = ((leapDays / 4) - (leapDays / 100) + (leapDays / 400) -
(1969 / 4) + (1969 / 100) - (1969 / 400));
int leapDays = year;
if (mon <= 1) {
--leapDays;
}
leapDays = leapDays / 4 - leapDays / 100 + leapDays / 400 - 1969 / 4 +
1969 / 100 - 1969 / 400;
return ((((long long) (year - 1970) * 365 + leapDays +
monthDaysCumulative[mon] + mday - 1) * 24 + hour) * 60 + min) * 60 +
sec;
@ -24413,10 +24418,10 @@ int wolfSSL_ASN1_TIME_diff(int *days, int *secs, const WOLFSSL_ASN1_TIME *from,
return WOLFSSL_FAILURE;
}
/* We use time2epoch here instead of XMKTIME to avoid the Year 2038 problem
* on platforms where time_t is 32 bits. struct tm stores the year as years
* since 1900, so we add 1900 to the year. */
fromSecs = time2epoch(fromTmGmt->tm_sec, fromTmGmt->tm_min,
/* We use TimeToUnixTime here instead of XMKTIME to avoid the Year 2038
* Problem on platforms where time_t is 32 bits. struct tm stores the year
* as years since 1900, so we add 1900 to the year. */
fromSecs = TimeToUnixTime(fromTmGmt->tm_sec, fromTmGmt->tm_min,
fromTmGmt->tm_hour, fromTmGmt->tm_mday,
fromTmGmt->tm_mon, fromTmGmt->tm_year + 1900);
@ -24433,7 +24438,7 @@ int wolfSSL_ASN1_TIME_diff(int *days, int *secs, const WOLFSSL_ASN1_TIME *from,
return WOLFSSL_FAILURE;
}
toSecs = time2epoch(toTmGmt->tm_sec, toTmGmt->tm_min, toTmGmt->tm_hour,
toSecs = TimeToUnixTime(toTmGmt->tm_sec, toTmGmt->tm_min, toTmGmt->tm_hour,
toTmGmt->tm_mday, toTmGmt->tm_mon,
toTmGmt->tm_year + 1900);