/// <summary>
/// Reads the next archive header and populates CurrentFile property data
/// </summary>
/// <returns></returns>
public bool ReadHeader()
{
// Throw exception if archive not open
if (this.archiveHandle == IntPtr.Zero)
{
throw new IOException("Archive is not open.");
}
// Initialize header struct
this.header = new RARHeaderDataEx();
header.Initialize();
// Read next entry
currentFile = null;
int result = RARReadHeaderEx(this.archiveHandle, ref this.header);
// Check for error or end of archive
if ((RarError) result == RarError.EndOfArchive)
{
return false;
}
else if ((RarError) result == RarError.BadData)
{
throw new IOException("Archive data is corrupt.");
}
// Determine if new file
if (((header.Flags & 0x01) != 0) && currentFile != null)
{
currentFile.ContinuedFromPrevious = true;
}
else
{
// New file, prepare header
currentFile = new RARFileInfo();
currentFile.FileName = header.FileNameW.ToString();
if ((header.Flags & 0x02) != 0)
{
currentFile.ContinuedOnNext = true;
}
if (header.PackSizeHigh != 0)
{
currentFile.PackedSize = (header.PackSizeHigh * 0x100000000) + header.PackSize;
}
else
{
currentFile.PackedSize = header.PackSize;
}
if (header.UnpSizeHigh != 0)
{
currentFile.UnpackedSize = (header.UnpSizeHigh * 0x100000000) + header.UnpSize;
}
else
{
currentFile.UnpackedSize = header.UnpSize;
}
currentFile.HostOS = (int) header.HostOS;
currentFile.FileCRC = header.FileCRC;
currentFile.FileTime = FromMSDOSTime(header.FileTime);
currentFile.VersionToUnpack = (int) header.UnpVer;
currentFile.Method = (int) header.Method;
currentFile.FileAttributes = (int) header.FileAttr;
currentFile.BytesExtracted = 0;
if ((header.Flags & 0xE0) == 0xE0)
{
currentFile.IsDirectory = true;
}
this.OnNewFile();
}
// Return success
return true;
}
public NewFileEventArgs(RARFileInfo fileInfo)
{
this.fileInfo = fileInfo;
}