parse227(resp)
private
handler for response code 227 (Entering Passive Mode (h1,h2,h3,h4,p1,p2))
Returns host and port.
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def parse227(resp)
if resp[0, 3] != "227"
raise FTPReplyError, resp
end
left = resp.index("(")
right = resp.index(")")
if left == nil or right == nil
raise FTPProtoError, resp
end
numbers = resp[left + 1 .. right - 1].split(",")
if numbers.length != 6
raise FTPProtoError, resp
end
host = numbers[0, 4].join(".")
port = (numbers[4].to_i << 8) + numbers[5].to_i
return host, port
end