What are the biggest changes between GT2 and GT4 File transfer client libraries from jglobus?
There are some changes in the semantics between the wu based gridftp server used in GT2 server or our new one used in GT4. LIST command change: One important cahnge is related to the LIST command. The wu gridftp server could accept all the switches like the ls command does, e.g. -d *. But the new one does not. The RFC specification only talks about a single argument to the LIST command, and not about any switches, which makes the new sever more specification compliant. Ordering of commands: Another change is that some implied ordering to the commands exist that relate to setting up the parameters of the data channel. For example, you can do MODE S, TYPE I, PORT, RETR but you cannot do PORT, MODE S, TYPE I, RETR. Doing MODE, TYPE commands after issuing the PORT command has no effect on the server (the server will assume the MODE, TYPE settings before the PORT command). If you do that on the client, basically the client & server get out of synchronization base don the internal ordering t
