public static string GetFtpCurrentDirectory(IntPtr hConnect)
{
// the starting bufferLength
uint bufferLength = 512;
// The string buffer that will hold the extended information
StringBuilder stringBuffer = new StringBuilder((int)bufferLength);
// try to get the extended information. If this returns false, there was an
// error (likely, the buffer isn't large enough)
if (!WinInet.FtpGetCurrentDirectory(
hConnect,
stringBuffer,
ref bufferLength))
{
// If the buffer wasn't large enough
int error = Marshal.GetLastWin32Error();
if (error == ERROR.INSUFFICIENT_BUFFER)
{
// Resize the buffer to the size specified in the results of the
// last call and try again.
stringBuffer.Capacity = (int)bufferLength;
WinInet.FtpGetCurrentDirectory(
hConnect,
stringBuffer,
ref bufferLength);
}
else
{
Debug.Assert(false, "Error getting current directory");
return("/");
}
}
return(stringBuffer.ToString());
}
/// <summary>
/// Returns any extended information from the last call to WinInet.
/// </summary>
/// <returns>A string containing the extended information</returns>
public static string GetExtendedInfo()
{
// holder for any error code
uint errorCode;
// the starting bufferLength
uint bufferLength = 512;
// The string buffer that will hold the extended information
StringBuilder stringBuffer = new StringBuilder((int)bufferLength);
// try to get the extended information. If this returns false, there was an
// error (likely, the buffer isn't large enough)
if (!WinInet.InternetGetLastResponseInfo(
out errorCode,
stringBuffer,
ref bufferLength))
{
// If the buffer wasn't large enough
int error = Marshal.GetLastWin32Error();
if (error == ERROR.INSUFFICIENT_BUFFER)
{
// Resize the buffer to the size specified in the results of the
// last call and try again.
stringBuffer.Capacity = (int)bufferLength;
WinInet.InternetGetLastResponseInfo(
out errorCode,
stringBuffer,
ref bufferLength);
}
else
{
Debug.Assert(false, "Error getting extended info");
}
}
return(stringBuffer.ToString());
}
