Spoon M
cedab15c8f
- lots of improvements over Struct / Struct2-perl - lots of bug fixes, and much stronger functionality - added an example test - comments on this all is encouraged git-svn-id: file:///home/svn/incoming/trunk@2330 4d416f70-5f16-0410-b530-b9f4589650da
56 lines
1.1 KiB
Ruby
56 lines
1.1 KiB
Ruby
#!/usr/bin/ruby
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# Rex::Struct2
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module Rex
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module Struct2
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class Generic
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require 'Rex/Struct2/Element'
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include Rex::Struct2::Element
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attr_reader :default
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attr_writer :default
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def initialize(packspec, default=nil)
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@packspec = packspec
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@default = default
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reset()
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end
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def reset
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self.value = @default
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end
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def to_s
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# I realize this will bomb out if this isn't an integer, for
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# example if it is nil. That should only happen for a user
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# error so that's what I want it to do...
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string = [ @value ].pack(@packspec)
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if restraint && restraint.max
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return string.slice(0, restraint.max)
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else
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return string
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end
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# what to do for restraint.min?!?
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end
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def from_s(bytes)
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value = bytes.unpack(@packspec)[0]
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# return nil on unpack error
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return if !value
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len = slength()
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# error on any restraint issues
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return if restraint && restraint.max && len > restraint.max
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return if restraint && restraint.min && len < restraint.min
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# else set our value and return length used for this element
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self.value = value
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return(len)
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end
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end
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# end Rex::Struct2
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end
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end
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