Hi,
I write FTP server on LPC2478 and uEZ1.11 platform.
There is a simple loop where is recieving data from FTP client.
struct netbuf *inbuf;/
/
while(1)
{
inbuf = NULL;
inbuf = netconn_recv(conn_data);
if(inbuf)
{
netbuf_copy(inbuf,BlockBuffer,inbuf->ptr->tot_len);
UEZFileWrite(file,BlockBuffer,inbuf->ptr->tot_len,NULL);//store data to
filesystem
netbuf_delete(inbuf);
}
else
break;
}
FTP client (Total Commander) split the big file into few packets. For
example file with total length 9130B is split like this:
512B,988B,1460B,1460B,1460B,1460B,1460B,40B,290B
First 8 packets is received always fine. The last packet (290B) is
received just sometimes. So the received file have length only 8840B.
Connection timeout is set to 0 (infinite).
I have captured ethernet communication between FTP server (LPC2478) and
FTP client (my PC). LPC2478 don't recieve 290B packet at first attempt.
After that PC send retransmission with data length 330B. I don't
understand why. This is not the same packet which I lost. Data in this
packet is identical like in the 40B packet and 290B together. After them
is connection closed.
Why I have problem with receiving the last data packet?
Best regards Peter Janco.
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