| static private DosTimeToDateTime ( uint dateTime ) : DateTime | ||
| dateTime | uint | |
| Résultat | DateTime | |
internal static DateTime DosTimeToDateTime(uint dateTime)
{
// do the bit shift as unsigned because the fields are unsigned, but
// we can safely convert to int, because they won't be too big
int year = (int)(ValidZipDate_YearMin + (dateTime >> 25));
int month = (int)((dateTime >> 21) & 0xF);
int day = (int)((dateTime >> 16) & 0x1F);
int hour = (int)((dateTime >> 11) & 0x1F);
int minute = (int)((dateTime >> 5) & 0x3F);
int second = (int)((dateTime & 0x001F) * 2); // only 5 bits for second, so we only have a granularity of 2 sec.
try
{
return new System.DateTime(year, month, day, hour, minute, second, 0);
}
catch (ArgumentOutOfRangeException)
{
return s_invalidDateIndicator;
}
catch (ArgumentException)
{
return s_invalidDateIndicator;
}
}
internal ZipArchiveEntry(ZipArchive archive, ZipCentralDirectoryFileHeader cd)
{
this._archive = archive;
this._originallyInArchive = true;
this._diskNumberStart = cd.DiskNumberStart;
this._versionToExtract = (ZipVersionNeededValues)cd.VersionNeededToExtract;
this._generalPurposeBitFlag = (ZipArchiveEntry.BitFlagValues)cd.GeneralPurposeBitFlag;
this.CompressionMethod = (ZipArchiveEntry.CompressionMethodValues)cd.CompressionMethod;
this._lastModified = new DateTimeOffset(ZipHelper.DosTimeToDateTime(cd.LastModified));
this._compressedSize = cd.CompressedSize;
this._uncompressedSize = cd.UncompressedSize;
this._externalFileAttr = cd.ExternalFileAttributes;
this._offsetOfLocalHeader = cd.RelativeOffsetOfLocalHeader;
this._storedOffsetOfCompressedData = null;
this._crc32 = cd.Crc32;
this._compressedBytes = null;
this._storedUncompressedData = null;
this._currentlyOpenForWrite = false;
this._everOpenedForWrite = false;
this._outstandingWriteStream = null;
this.FullName = this.DecodeEntryName(cd.Filename);
this._lhUnknownExtraFields = null;
this._cdUnknownExtraFields = cd.ExtraFields;
this._fileComment = cd.FileComment;
this._compressionLevel = null;
}