private void InitStream(IntPtr fileStream, bool ownsHandle)
{
if (StdioFileStream.InvalidFileStream == fileStream)
{
throw new ArgumentException(Locale.GetText("Invalid file stream"), "fileStream");
}
this.file = fileStream;
this.owner = ownsHandle;
try
{
if ((long)Stdlib.fseek(this.file, (long)0, SeekFlags.SEEK_CUR) != (long)-1)
{
this.canSeek = true;
}
Stdlib.fread(IntPtr.Zero, (ulong)0, (ulong)0, this.file);
if (Stdlib.ferror(this.file) == 0)
{
this.canRead = true;
}
Stdlib.fwrite(IntPtr.Zero, (ulong)0, (ulong)0, this.file);
if (Stdlib.ferror(this.file) == 0)
{
this.canWrite = true;
}
Stdlib.clearerr(this.file);
}
catch (Exception exception)
{
throw new ArgumentException(Locale.GetText("Invalid file stream"), "fileStream");
}
GC.KeepAlive(this);
}