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53 lines
1.1 KiB
Lua
53 lines
1.1 KiB
Lua
---
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-- FTP functions.
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--
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-- @copyright Same as Nmap--See http://nmap.org/book/man-legal.html
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module(... or "ftp", package.seeall)
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---
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-- Read an FTP reply and return the numeric code and the message. See RFC 959,
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-- section 4.2.
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-- @param buffer should have been created with
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-- <code>stdnse.make_buffer(socket, "\r?\n")</code>.
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-- @return numeric code or <code>nil</code>.
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-- @return text reply or error message.
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function read_reply(buffer)
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local readline
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local line, err
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local code, message
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local _, p, tmp
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line, err = buffer()
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if not line then
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return line, err
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end
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-- Single-line response?
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code, message = string.match(line, "^(%d%d%d) (.*)$")
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if code then
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return tonumber(code), message
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end
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-- Multi-line response?
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_, p, code, message = string.find(line, "^(%d%d%d)-(.*)$")
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if p then
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while true do
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line, err = buffer()
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if not line then
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return line, err
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end
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tmp = string.match(line, "^%d%d%d (.*)$")
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if tmp then
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message = message .. "\n" .. tmp
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break
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end
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message = message .. "\n" .. line
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end
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return tonumber(code), message
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end
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return nil, string.format("Unparseable response: %q", line)
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end
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