class Runc

nc REPL

Constants

VERSION: :nodoc

Public Class Methods

has_nc() click to toggle source

check if nc is installed

# File lib/runc.rb, line 52
def self.has_nc
  system("type -p nc", [:out, :err] => File::NULL)
end

Public Instance Methods

ask(prompt) click to toggle source

prompt user for input

# File lib/runc.rb, line 168
def ask(prompt)
  res = Readline.readline("#{prompt}> ", true)
  res.nil? ? (puts; exit) : res
end

protocol_file() click to toggle source

file with internet protocols and ports. More info in 'man services'

# File lib/runc.rb, line 92
def protocol_file
  '/etc/services'
end

read_protocols() click to toggle source

generate a hash of protocols and port numbers

# File lib/runc.rb, line 98
def read_protocols
  @protocol = {}
  File.open(protocol_file) do |f|
    f.each_line do |l|
      next if l.match?(/^#|$^/)
      @protocol[l.split[1].sub(/\/.*/i,'').to_i] = l.split[0]
    end
  end

  # default to http if +port+ is larger than 2000
  @protocol.keys.each do |port|
    @protocol[port] = 'http' if port > 2000
  end
end

update_header() click to toggle source

reads a hash from user input hash should be of the form: key1: val1 [, key2: val2 [, …]]

# File lib/runc.rb, line 157
def update_header
  header_tmp=YAML.load("{#{ask('header')}}")

  # if +header_tmp+ contains a +port+ key, update the port
  @port=header_tmp.key?('port') ? header_tmp.delete('port') : @port

  @header.update(header_tmp)
end