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When
dos_date
is1
,mz_zip_dosdate_to_raw_tm
should return a date in year 1979.But the cast with
(uint16_t)
is incorrectly converting-1
to65535
, which turns the date to year 7441.The issue may have originated from 35c6102 or earlier (in unzip.c,
ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ;
)It was fixed in the legacy minizip about three years ago:
madler/zlib@2014a99