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# -*- coding: binary -*-
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module Msf
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###
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#
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# This class acts as the base class for all nop generators.
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#
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###
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class Nop < Msf::Module
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  #
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  # Returns MODULE_NOP to indicate that this is a NOP module.
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  #
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  def self.type
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    return Msf::MODULE_NOP
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  end
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  #
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  # Returns MODULE_NOP to indicate that this is a NOP module.
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  #
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  def type
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    return Msf::MODULE_NOP
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  end
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  #
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  # Initializes the NOP generator, defaulting it to being usable on all
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  # platforms.
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  #
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  def initialize(info = {})
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    super({
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        'Platform' => '' # All platforms by default
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      }.update(info))
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  end
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  #
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  # Stub method for generating a sled with the provided arguments.  Derived
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  # Nop implementations must supply a length and can supply one or more of
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  # the following options:
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  #
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  #   - Random (true/false)
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  #     Indicates that the caller desires random NOPs (if supported).
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  #   - SaveRegisters (array)
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  #     The list of registers that should not be clobbered by the NOP
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  #     generator.
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  #   - BadChars (string)
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  #     The list of characters that should be avoided by the NOP
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  #     generator.
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  #
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  def generate_sled(length, opts)
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    return nil
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  end
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  #
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  # Default repetition threshold when finding nop characters.
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  #
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  def nop_repeat_threshold
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    return 10000
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  end
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end
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end
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