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Added default values for the index and length parameters if no value is supplied in the Packet:raw(index,length) function of the nselib/packet.lua library

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This commit is contained in:
gorjan 2011-07-13 09:27:54 +00:00
parent 5f3b402cf7
commit c08ca750fa
1 changed files with 7 additions and 3 deletions
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10
nselib/packet.lua
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@ -199,11 +199,15 @@ function Packet:u32(index)
return u32(self.buf, index)
end
--- Return part of the packet contents as a byte string.
-- @param index The beginning of the part of the packet to extract.
-- @param length The length of the part of the packet to extract.
-- @param index The beginning of the part of the packet to extract. The index
-- is 0-based. If omitted the default value is 0 (begining of the string)
-- @param length The length of the part of the packet to extract. If omitted
-- the remaining contents from index to the end of the string are returned.
-- @return A string.
function Packet:raw(index, length)
return string.char(string.byte(self.buf, index+1, index+1+length-1))
if not index then index = 0 end
if not length then length = #self.buf-index
return string.char(string.byte(self.buf, index+1, index+1+length-1))
end
--- Set an 8-bit integer at a 0-based byte offset in the packet.