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early-access version 2698

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pineappleEA
2022-04-24 22:29:35 +02:00
parent c96f949832
commit caa0c2911b
486 changed files with 37806 additions and 14362 deletions
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83
externals/libressl/crypto/o_time.c vendored
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@@ -1,4 +1,4 @@
/* $OpenBSD: o_time.c,v 1.15 2014/06/12 15:49:27 deraadt Exp $ */
/* $OpenBSD: o_time.c,v 1.16 2021/10/27 09:50:56 beck Exp $ */
/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
* project 2001.
*/
@@ -72,6 +72,8 @@
static long date_to_julian(int y, int m, int d);
static void julian_to_date(long jd, int *y, int *m, int *d);
static int julian_adj(const struct tm *tm, int off_day, long offset_sec,
long *pday, int *psec);
int
OPENSSL_gmtime_adj(struct tm *tm, int off_day, long offset_sec)
@@ -131,6 +133,85 @@ OPENSSL_gmtime_adj(struct tm *tm, int off_day, long offset_sec)
}
int
OPENSSL_gmtime_diff(int *pday, int *psec, const struct tm *from,
const struct tm *to)
{
int from_sec, to_sec, diff_sec;
long from_jd, to_jd, diff_day;
if (!julian_adj(from, 0, 0, &from_jd, &from_sec))
return 0;
if (!julian_adj(to, 0, 0, &to_jd, &to_sec))
return 0;
diff_day = to_jd - from_jd;
diff_sec = to_sec - from_sec;
/* Adjust differences so both positive or both negative */
if (diff_day > 0 && diff_sec < 0) {
diff_day--;
diff_sec += SECS_PER_DAY;
}
if (diff_day < 0 && diff_sec > 0) {
diff_day++;
diff_sec -= SECS_PER_DAY;
}
if (pday)
*pday = (int)diff_day;
if (psec)
*psec = diff_sec;
return 1;
}
/* Convert tm structure and offset into julian day and seconds */
static int
julian_adj(const struct tm *tm, int off_day, long offset_sec, long *pday,
int *psec)
{
int time_year, time_month, time_day;
long offset_day, time_jd;
int offset_hms;
/* split offset into days and day seconds */
offset_day = offset_sec / SECS_PER_DAY;
/* Avoid sign issues with % operator */
offset_hms = offset_sec - (offset_day * SECS_PER_DAY);
offset_day += off_day;
/* Add current time seconds to offset */
offset_hms += tm->tm_hour * 3600 + tm->tm_min * 60 + tm->tm_sec;
/* Adjust day seconds if overflow */
if (offset_hms >= SECS_PER_DAY) {
offset_day++;
offset_hms -= SECS_PER_DAY;
} else if (offset_hms < 0) {
offset_day--;
offset_hms += SECS_PER_DAY;
}
/*
* Convert date of time structure into a Julian day number.
*/
time_year = tm->tm_year + 1900;
time_month = tm->tm_mon + 1;
time_day = tm->tm_mday;
time_jd = date_to_julian(time_year, time_month, time_day);
/* Work out Julian day of new date */
time_jd += offset_day;
if (time_jd < 0)
return 0;
*pday = time_jd;
*psec = offset_hms;
return 1;
}
/* Convert date to and from julian day
* Uses Fliegel & Van Flandern algorithm
*/