124 lines
1.8 KiB
Ruby
124 lines
1.8 KiB
Ruby
#!/usr/bin/env ruby
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require 'socket'
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require 'fcntl'
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module Rex
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module IO
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###
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#
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# This class provides an abstraction to a stream based
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# connection through the use of a streaming socketpair.
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#
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###
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module StreamAbstraction
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###
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#
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# Extension information for required Stream interface.
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#
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###
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module Ext
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#
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# Initializes peer information.
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#
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def initinfo(peer)
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@peer = peer
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end
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#
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# Symbolic peer information.
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#
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def peerinfo
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(@peer || "Remote Pipe") + " (HTTP)"
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end
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#
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# Symbolic local information.
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#
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def localinfo
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"Local Pipe (HTTP)"
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end
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end
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#
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# This method creates a streaming socket pair and initializes it.
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#
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def initialize_abstraction
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self.lsock, self.rsock = ::Socket.pair(::Socket::AF_UNIX,
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::Socket::SOCK_STREAM, 0)
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self.lsock.extend(Rex::IO::Stream)
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self.lsock.extend(Ext)
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self.rsock.extend(Rex::IO::Stream)
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end
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#
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# This method cleans up the abstraction layer.
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#
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def cleanup_abstraction
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self.lsock.close if (self.lsock)
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self.rsock.close if (self.rsock)
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self.lsock = nil
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self.rsock = nil
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end
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#
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# Writes to the local side.
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#
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def syswrite(buffer)
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lsock.syswrite(buffer)
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end
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#
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# Reads from the local side.
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#
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def sysread(length)
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lsock.sysread(length)
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end
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#
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# Shuts down the local side of the stream abstraction.
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#
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def shutdown(how)
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lsock.shutdown(how)
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end
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#
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# Closes both sides of the stream abstraction.
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#
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def close
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cleanup_abstraction
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end
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#
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# Symbolic peer information.
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#
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def peerinfo
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"Remote-side of Pipe"
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end
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#
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# Symbolic local information.
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#
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def localinfo
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"Local-side of Pipe"
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end
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#
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# The left side of the stream.
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#
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attr_reader :lsock
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#
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# The right side of the stream.
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#
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attr_reader :rsock
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protected
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attr_writer :lsock, :rsock # :nodoc:
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end
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end; end
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