Method: Rex::Text.hexify

Defined in:
lib/rex/text.rb

.hexify(str, col = DefaultWrap, line_start = '', line_end = '', buf_start = '', buf_end = '') ⇒ Object

Converts a string to a hex version with wrapping support



992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
 
# File 'lib/rex/text.rb', line 992

def self.hexify(str, col = DefaultWrap, line_start = '', line_end = '', buf_start = '', buf_end = '')
  output	 = buf_start
  cur	 = 0
  count	 = 0
  new_line = true

  # Go through each byte in the string
  str.each_byte { |byte|
    count  += 1
    append	= ''

    # If this is a new line, prepend with the
    # line start text
    if (new_line == true)
      append	 << line_start
      new_line  = false
    end

    # Append the hexified version of the byte
    append << sprintf("\\x%.2x", byte)
    cur    += append.length

    # If we're about to hit the column or have gone past it,
    # time to finish up this line
    if ((cur + line_end.length >= col) or (cur + buf_end.length  >= col))
      new_line  = true
      cur	  = 0

      # If this is the last byte, use the buf_end instead of
      # line_end
      if (count == str.length)
        append << buf_end + "\n"
      else
        append << line_end + "\n"
      end
    end

    output << append
  }

  # If we were in the middle of a line, finish the buffer at this point
  if (new_line == false)
    output << buf_end + "\n"
  end

  return output
end