Byte count difference between Unix and Windows

Question

Hi,
I use sun.net.ftp.FtpClient to transfer files from a windows machine to a unix server.
The transfer works fine.
However, due to a problem I had a few days ago with the file not completing it's transfer but no side (not my FtpClient object nor the UNIX Ftp server) has thrown an exception or reported an error, I need to verify the transfer is complete.
from the byte count I see that on my machine, the file size is 120743 bytes, and on the server side it's 121047 bytes.
The file has 14172 records, when the last one is an empty line.
There is a 304 bytes difference between the 2 reports.
I downloaded the file I transferred there manually and compared the 2 and they match.
How can I know from my program if the transfer is complete?
Thanks,
Omer.

Answer 1

The file size isn't 304 byte, that's the difference between the 2 files.
I use FtpClient.binary() to set the mode to binary prior to sending the file.
The file has 14172 records which should add up to a total difference of 14172 bytes (maybe 1 or 2 more if there is a difference in the EOF), but not 304.
here's the code:
putClient=new FtpClient(host, port); //initialize the client object
putClient.login(user, password);
putClient.binary(); //set transfer mode to binary
putClient.cd(remotePath); //change directory to the target one
FileInputStream fileIn=new FileInputStream(sourcePath + File.separator + sourceFileName);
long fileSize=fileIn.getChannel().size(); //get the size of the file
TelnetOutputStream telnetOut=putClient.put(remoteFileName);//acquire an input stream from the server
byte[] byteBuff=new byte[8192]; //8 kb buffer
int readSuccesfull=0;
while((readSuccesfull=fileIn.read(byteBuff))!=-1){ // now transfer the file
telnetOut.write(byteBuff, 0, readSuccesfull);
totalByetsSent+=readSuccesfull;
fileIn.close();//release the file stream resource
TelnetInputStream inStream = putClient.list(); // acquire a stream for verifying the file was received
/* now I read the lines of the list() command and parse the lines for the size and date and I get that the file that I sent has a size of 121047, and the line that represents it is this:
-rwxrwxrwx   1 owner    group          121047 Jan 10 17:49 ivory.txt
However, the size from my machine's report is 120743 which I get from the fileSize variable*/According to what has been said here, and to my intuition, the size on UNIX should be smaller than the size on Windows, but yet, it's not the case.
This would add up fine if the file that I downloaded from the server wouldn't match the file that I sent, but they do.
I'm pretty much a noob at developing and even more a noob at Java, so there is a very good chance that I do something wrong here, could be with the use of the FileChannel.size() method usage.
Thanks.