Net::BER::Extensions::String

BER extensions to the String class.

Public Instance Methods

read_ber(syntax = nil) click to toggle source

Nondestructively reads a BER object from this string.

# File lib/net/ber/core_ext/string.rb, line 33
def read_ber(syntax = nil)
  StringIO.new(self).read_ber(syntax)
end
read_ber!(syntax = nil) click to toggle source

Destructively reads a BER object from the string.

# File lib/net/ber/core_ext/string.rb, line 39
def read_ber!(syntax = nil)
  io = StringIO.new(self)

  result = io.read_ber(syntax)
  self.slice!(0...io.pos)
  
  return result
end
to_ber(code = 0x04) click to toggle source

Converts a string to a BER string. Universal octet-strings are tagged with 0x04, but other values are possible depending on the context, so we let the caller give us one.

User code should call either to_ber_application_string or to_ber_contextspecific.

# File lib/net/ber/core_ext/string.rb, line 13
def to_ber(code = 0x04)
  [code].pack('C') + length.to_ber_length_encoding + self
end
to_ber_application_string(code) click to toggle source

Creates an application-specific BER string encoded value with the provided syntax code value.

# File lib/net/ber/core_ext/string.rb, line 20
def to_ber_application_string(code)
  to_ber(0x40 + code)
end
to_ber_contextspecific(code) click to toggle source

Creates a context-specific BER string encoded value with the provided syntax code value.

# File lib/net/ber/core_ext/string.rb, line 27
def to_ber_contextspecific(code)
  to_ber(0x80 + code)
end

[Validate]

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