private async Task <long> _commandAppeAsync(string fileName)
{
long size = 0;
storeResponse = true;
if (await executeCommandAsync("SIZE", fileName) == 213)
{
size = FTPCommandsHelper.GetSize(tmpResponsed);
}
tmpResponsed = null;
if ((size > 0) && await setupDataConnectionAsync())
{
int code = await executeCommandAsync("APPE", fileName);
if ((code == 150) || (code == 125))
{
return(size);
}
else
{
await commandAbortAsync();
}
}
return(0);
}
private async Task <bool> _commandFeatAsync()
{
if (serverFeat != null)
{
return(serverFeat.Length > 0);
}
storeResponse = true;
if (await executeCommandAsync("FEAT") == 211)
{
serverFeat = FTPCommandsHelper.GetFeat(tmpResponsed);
}
tmpResponsed = null;
return(serverFeat.Length > 0);
}