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Fix offsetting local time back to UTC.

This commit is contained in:
Maarten Billemont 2018-07-31 11:40:11 -04:00
parent 86775f1c75
commit f5c0c4d787

View File

@ -35,8 +35,7 @@ char *mpw_get_token(const char **in, const char *eol, char *delim) {
return token;
}
time_t mpw_timegm(
const char *time) {
time_t mpw_timegm(const char *time) {
// TODO: Support for parsing non-UTC time strings
// Parse time as a UTC timestamp, into a tm.
@ -49,7 +48,8 @@ time_t mpw_timegm(
// mktime interprets tm as being local, we need to offset back to UTC (timegm/tm_gmtoff are non-standard).
time_t local_time = mktime( &tm ), local_dst = tm.tm_isdst > 0? 3600: 0;
return local_time + local_dst - mktime( gmtime( &local_time ) );
time_t gmtoff = local_time + local_dst - mktime( gmtime( &local_time ) );
return local_time + gmtoff;
}
return false;