pi@VallrunElmeter ~/Counter $ sudo ./ftpupload 
Local file size: 99 bytes.
* About to connect() to 192.168.0.151 port 21 (#0)
*   Trying 192.168.0.151...
* connected
* Connected to 192.168.0.151 (192.168.0.151) port 21 (#0)
* FTP 0x90d3f0 state change from STOP to WAIT220
< 220 ProFTPD 1.3.3g Server (NETGEAR ReadyNAS) [192.168.0.151]
> USER anonymous
* FTP 0x90d3f0 state change from WAIT220 to USER
< 331 Anonymous login ok, send your complete email address as your password
> PASS ftp@example.com
* FTP 0x90d3f0 state change from USER to PASS
< 230 Anonymous access granted, restrictions apply
> PWD
* FTP 0x90d3f0 state change from PASS to PWD
< 257 "/" is the current directory
* Entry path is '/'
* FTP 0x90d3f0 state change from PWD to STOP
* protocol connect phase DONE
* DO phase starts
> CWD backup
* FTP 0x90d3f0 state change from STOP to CWD
< 250 CWD command successful
> CWD ftptest
< 250 CWD command successful
> EPSV
* FTP 0x90d3f0 state change from CWD to PASV
* Connect data stream passively
< 229 Entering Extended Passive Mode (|||65234|)
*   Trying 192.168.0.151...
* connected
* Connecting to 192.168.0.151 (192.168.0.151) port 65234
* FTP 0x90d3f0 state change from PASV to STOP
* DO phase is complete
> TYPE I
* FTP 0x90d3f0 state change from STOP to STOR_TYPE
< 200 Type set to I
> STOR ws_data2.txt
* FTP 0x90d3f0 state change from STOR_TYPE to STOR
< 550 ws_data2.txt: Permission denied
* Failed FTP upload: 550
* DO-MORE phase ends with 25
* Remembering we are in dir "backup/ftptest/"
* Uploaded unaligned file size (0 out of 99 bytes)
* Connection #0 to host 192.168.0.151 left intact
* Upload failed (at start/before it took off)
curl_easy_perform ()  failed: Upload failed (at start/before it took off)
> QUIT
* FTP 0x90d3f0 state change from STOR to QUIT
< 221 Goodbye.
* FTP 0x90d3f0 state change from QUIT to STOP
* Closing connection #0
pi@VallrunElmeter ~/Counter $