data stream
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... To avoid having to resend the entire file if the file is only
partially transferred, both sides need some way to agree on where in
the data stream to restart the data transfer.
...
... STREAM, Block, and Compressed. In Block and Compressed modes, the
data stream that is transferred over the data connection is
formatted, allowing the embedding of restart ...
... unformatted octets of data. Explicit restart markers thus cannot be
inserted into the data stream, they would be indistinguishable from
data. For this reason, the FTP specification [3 ...
... restart markers in this case, as restart
markers can be implied by the octet offset into the data stream.
Because the data stream ...
... data stream.
Because the data stream defines the file in STREAM mode, a different
data stream ...
... data stream defines the file in STREAM mode, a different
data stream would represent a different file. Thus, an offset will
always represent the same position within a file. On the other hand,
in other modes than STREAM ...
... STREAM, the same file can be transferred using
quite different octet sequences and yet be reconstructed into the one
identical file. Thus an offset into the data stream in transfer
modes other than STREAM would not give an unambiguous restart ...