internal static ZipIOLocalFileHeader CreateNew(string fileName, Encoding encoding, CompressionMethodEnum compressionMethod, DeflateOptionEnum deflateOption, bool streaming)
{
byte[] bytes = encoding.GetBytes(fileName);
if (bytes.Length > ZipIOBlockManager.MaxFileNameSize)
{
throw new ArgumentOutOfRangeException("fileName");
}
ZipIOLocalFileHeader header = new ZipIOLocalFileHeader();
header._signature = 0x4034b50;
header._compressionMethod = (ushort)compressionMethod;
if (streaming)
{
header._versionNeededToExtract = 0x2d;
}
else
{
header._versionNeededToExtract = (ushort)ZipIOBlockManager.CalcVersionNeededToExtractFromCompression(compressionMethod);
}
if (compressionMethod != CompressionMethodEnum.Stored)
{
header.DeflateOption = deflateOption;
}
if (streaming)
{
header.StreamingCreationFlag = true;
}
header._lastModFileDateTime = ZipIOBlockManager.ToMsDosDateTime(DateTime.Now);
header._fileNameLength = (ushort)bytes.Length;
header._fileName = bytes;
header._extraField = ZipIOExtraField.CreateNew(!streaming);
header._extraFieldLength = header._extraField.Size;
header._stringFileName = fileName;
return(header);
}
internal static ZipIOCentralDirectoryFileHeader CreateNew(Encoding encoding, ZipIOLocalFileBlock fileBlock)
{
ZipIOCentralDirectoryFileHeader header = new ZipIOCentralDirectoryFileHeader(encoding);
header._fileCommentLength = 0;
header._fileComment = null;
header._diskNumberStart = 0;
header._internalFileAttributes = 0;
header._externalFileAttributes = 0;
header._versionMadeBy = 0x2d;
header._extraField = ZipIOExtraField.CreateNew(false);
header.UpdateFromLocalFileBlock(fileBlock);
return(header);
}
