/// <summary>
/// Get information about a file.
/// </summary>
/// <param name="fileName">Name of the file for which information is requested.</param>
/// <param name="rDate">A reference parameter into which the file date is stored.</param>
/// <param name="rTime">A reference parameter into which the file time is stored.</param>
/// <param name="attribs">A reference parameter into which file attributes are stored.</param>
/// <param name="err">Error return value.</param>
/// <param name="pUserData">User data object.</param>
/// <returns>On success, returns a handle to the open file, and the rDate, rTime, and attribs parameters are filled.
/// Returns -1 on error.</returns>
/// <remarks>The File Compression Interface calls this function to open a file and return information about it.</remarks>
protected virtual IntPtr GetOpenInfo(
string fileName, //
ref short rDate,
ref short rTime,
ref short attribs,
ref int err,
IntPtr pUserData)
{
Trace.WriteLine(string.Format("GetOpenInfo {0}", fileName));
try
{
// Get file date/time and attributes
FileAttributes fattr = File.GetAttributes(fileName);
DateTime fdate = File.GetLastWriteTime(fileName);
// Convert to format that FCI understands
attribs = FCntl.FAttrsFromFileAttributes(fattr);
FCntl.DosDateTimeFromDateTime(fdate, ref rDate, ref rTime);
// open file and return handle
return(CabIO.FileOpen(fileName, FileAccess.Read, FileShare.None, FileMode.Open, ref err));
}
catch (Exception ex)
{
Trace.WriteLine(ex);
err = 1;
}
return((IntPtr)(-1));
}
/// <summary>
/// Opens a file.
/// </summary>
/// <param name="fileName">The path name of the file to be opened.</param>
/// <param name="oflag">Open mode flags.</param>
/// <param name="pmode">Share mode flags.</param>
/// <returns>Returns an IntPtr that references the open file handle. Returns -1 on error.</returns>
/// <remarks>The File Decompression Interface (FDI) calls this function to open files.</remarks>
protected virtual IntPtr FileOpen(string fileName, int oflag, int pmode)
{
Trace.WriteLine("FileOpen {0}", fileName);
int err = 0;
try
{
return(CabIO.FileOpen(fileName, oflag, pmode, ref err, userData));
}
finally
{
erf.ErrorType = err;
}
}
/// <summary>
/// Opens a file.
/// </summary>
/// <param name="fileName">The path name of the file to be opened.</param>
/// <param name="oflag">Open mode flags.</param>
/// <param name="pmode">Share mode flags.</param>
/// <param name="err">Error return value.</param>
/// <param name="pUserData">User data object.</param>
/// <returns>Returns an IntPtr that references the open file handle. Returns -1 on error.</returns>
/// <remarks>The File Compression Interface (FCI) calls this function to open files.</remarks>
protected virtual IntPtr FileOpen(string fileName, int oflag, int pmode,
ref int err, IntPtr pUserData)
{
Trace.WriteLine(string.Format("FileOpen {0}", fileName));
return(CabIO.FileOpen(fileName, oflag, pmode, ref err, ((GCHandle)pUserData).Target));
}