client/luascripts/data_hex_crc.lua

   1 local getopt = require('getopt')
   2 local utils = require('utils')
   3 local ansicolors  = require('ansicolors')
   4
   5 copyright = ''
   6 author = 'Iceman'
   7 version = 'v1.0.2'
   8 desc = [[
   9 This script calculates many checksums (CRC) over the provided hex input.
  10 ]]
  11 example = [[
  12     script run data_hex_crc -b 010203040506070809
  13     script run data_hex_crc -b 010203040506070809 -w 16
  14 ]]
  15 usage = [[
  16 script run data_hex_crc [-b <hex bytes] [-w <width>]
  17 ]]
  18 arguments = [[
  19      -b       data in hex
  20      -w       bitwidth of the CRC family of algorithm. <optional> defaults to all known CRC presets.
  21 ]]
  22 ---
  23 -- A debug printout-function
  24 local function dbg(args)
  25     if not DEBUG then return end
  26     if type(args) == 'table' then
  27         local i = 1
  28         while args[i] do
  29             dbg(args[i])
  30             i = i+1
  31         end
  32     else
  33         print('###', args)
  34     end
  35 end
  36 ---
  37 -- This is only meant to be used when errors occur
  38 local function oops(err)
  39     print('ERROR:', err)
  40     core.clearCommandBuffer()
  41     return nil, err
  42 end
  43 ---
  44 -- Usage help
  45 local function help()
  46     print(copyright)
  47     print(author)
  48     print(version)
  49     print(desc)
  50     print(ansicolors.cyan..'Usage'..ansicolors.reset)
  51     print(usage)
  52     print(ansicolors.cyan..'Arguments'..ansicolors.reset)
  53     print(arguments)
  54     print(ansicolors.cyan..'Example usage'..ansicolors.reset)
  55     print(example)
  56 end
  57 ---
  58 -- The main entry point
  59 function main(args)
  60
  61     local data
  62     local width = 0
  63
  64     -- Read the parameters
  65     for o, a in getopt.getopt(args, 'hb:w:') do
  66         if o == 'h' then return help() end
  67         if o == 'b' then data = a end
  68         if o == 'w' then width = a end
  69     end
  70
  71     data = data or '01020304'
  72     width = width or 0
  73
  74     print( string.rep('-',60) )
  75     print('Bit width of CRC | '..width)
  76     print('Bytes            | '..data)
  77     print('')
  78     print( ('%-20s| %-16s| %s'):format('Model','CRC', 'CRC reverse','bigEnd', 'bigEnd','little','little'))
  79     print( string.rep('-',60) )
  80     local lists, err = core.reveng_models(width)
  81     if lists == nil then return oops(err) end
  82
  83     for _,i in pairs(lists) do
  84         if string.len(i) > 1 then
  85             local a1 = core.reveng_runmodel(i, data, false, '0')
  86             local a2 = core.reveng_runmodel(i, data, true, '0')
  87             local a3 = core.reveng_runmodel(i, data, false, 'b')
  88             local a4 = core.reveng_runmodel(i, data, false, 'B')
  89             local a5 = core.reveng_runmodel(i, data, false, 'l')
  90             local a6 = core.reveng_runmodel(i, data, false, 'L')
  91             print( ('%-20s| %-16s| %-16s| %-16s| %-16s| %-16s| %-16s'):format(i, a1:upper(), a2:upper(),a3:upper(),a4:upper(),a5:upper(),a6:upper() ) )
  92         end
  93     end
  94 end
  95
  96 main(args)