local L1_1, L2_2, L3_3, L4_4, L5_5, L6_6, L7_7, L8_8, L9_9, L10_10, L11_11, L12_12, L13_13, L14_14, L15_15, L16_16, L17_17, L18_18, L19_19, L20_20, L21_21
L0_0 = require
L1_1 = "luaext.sys"
L0_0 = L0_0(L1_1)
L1_1 = require
L2_2 = "luaext.aes"
L1_1 = L1_1(L2_2)
L2_2 = arg
L3_3 = string
L3_3 = L3_3.format
L4_4 = io
L5_5 = ipairs
L6_6 = os
L7_7 = print
L8_8 = string
L9_9 = table
L10_10 = tonumber
L11_11 = {}
_ENV = L11_11
L11_11, L12_12 = nil, nil
function L13_13(A0_22, ...)
  A0_22 = "update_sd: " .. A0_22
  L4_4.stderr:write(A0_22:format(...))
end
function L14_14(A0_23, A1_24)
  local L2_25, L3_26, L4_27, L5_28
  L2_25 = "/tmp/update_sd-getsum.tmp"
  L3_26 = L4_4.popen
  L4_27 = "sha256sum >"
  L5_28 = L2_25
  L4_27 = L4_27 .. L5_28 
  L5_28 = "w"
  L3_26 = L3_26(L4_27, L5_28)
  repeat
    if A1_24 > 4096 then
      L4_27 = 4096
    else
      L4_27 = L4_27 or A1_24
    end
    L5_28 = A0_23.read
    L5_28 = L5_28(A0_23, L4_27)
    L3_26:write(L5_28)
    A1_24 = A1_24 - L4_27
  until A1_24 == 0
  L5_28 = L3_26
  L4_27 = L3_26.close
  L4_27(L5_28)
  L4_27 = nil
  L5_28 = L4_4.open
  L5_28 = L5_28(L2_25)
  if L5_28 then
    if L5_28:read() then
      L4_27 = L5_28:read():match("%x+")
    end
    L5_28:close()
    L6_6.remove(L2_25)
  end
  return L4_27
end
function L15_15(A0_29)
  local L1_30, L2_31, L3_32, L4_33, L5_34
  L1_30 = {}
  for L5_34 = 1, #A0_29, 2 do
    L1_30[#L1_30 + 1] = L10_10(A0_29:sub(L5_34, L5_34 + 1), 16)
  end
  L5_34 = L3_32(L4_33)
  return L2_31(L3_32, L4_33, L5_34, L3_32(L4_33))
end
function L16_16()
  local L0_35, L1_36, L2_37, L3_38, L4_39, L5_40
  L0_35 = {
    L1_36,
    L2_37,
    L3_38,
    L4_39,
    L5_40,
    2197438769,
    632650056,
    2567168270
  }
  L4_39 = 4287771157
  L5_40 = 4188798088
  for L4_39, L5_40 in L1_36(L2_37) do
    L0_35[L4_39] = L3_3("%08x", L5_40)
  end
  L5_40 = L2_37(L3_38)
  L0_35 = L1_36
  return L1_36(L2_37)
end
function L17_17(A0_41, A1_42)
  local L2_43, L3_44, L4_45, L5_46, L6_47
  L2_43 = {}
  for L6_47 = 1, 16 do
    L2_43[L6_47] = A0_41:byte(L6_47) ~ A1_42:byte(L6_47)
  end
  L6_47 = L4_45(L5_46)
  return L3_44(L4_45, L5_46, L6_47, L4_45(L5_46))
end
function L18_18(A0_48)
  local L1_49, L2_50, L3_51, L4_52, L5_53, L6_54, L7_55, L8_56
  L1_49 = L8_8.rep
  L2_50 = "\000"
  L3_51 = 16
  L1_49 = L1_49(L2_50, L3_51)
  L2_50 = L16_16
  L2_50 = L2_50()
  L3_51 = {}
  for L7_55 = 1, #A0_48, 16 do
    L8_56 = A0_48.sub
    L8_56 = L8_56(A0_48, L7_55, L7_55 + 15)
    L8_56 = L17_17(L1_49, L8_56)
    L1_49 = L2_50:enc(L8_56)
    L3_51[#L3_51 + 1] = L1_49
  end
  L4_52(L5_53)
  return L4_52(L5_53)
end
function L19_19(A0_57, A1_58, A2_59)
  local L3_60, L4_61, L5_62
  L3_60 = L4_4.open
  L4_61 = A1_58
  L5_62 = "wb"
  L3_60 = L3_60(L4_61, L5_62)
  if not L3_60 then
    L4_61 = L13_13
    L5_62 = "Can't create file: %s\n"
    L4_61(L5_62, A1_58)
    L4_61 = false
    return L4_61
  end
  repeat
    if A2_59 > 1024 then
      L4_61 = 1024
    else
      L4_61 = L4_61 or A2_59
    end
    L5_62 = A0_57.read
    L5_62 = L5_62(A0_57, L4_61)
    L3_60:write(L5_62)
    A2_59 = A2_59 - L4_61
  until A2_59 == 0
  L5_62 = L3_60
  L4_61 = L3_60.close
  L4_61(L5_62)
  L4_61 = true
  return L4_61
end
function L20_20(A0_63)
  local L1_64
  L1_64 = A0_63.seek
  L1_64(A0_63, "end", -100)
  L1_64 = A0_63.read
  L1_64 = L1_64(A0_63, 4)
  L13_13("cam_hw_ver(%s), file_hw_ver(%s)\n", L12_12, L1_64)
  if L12_12 ~= L1_64 then
    L13_13("Skip update\n")
    return false
  end
  return true
end
function L21_21()
  local L0_65, L1_66, L2_67, L3_68, L4_69, L5_70, L6_71, L7_72
  L0_65 = L2_2
  L0_65 = #L0_65
  if L0_65 ~= 2 then
    L0_65 = L13_13
    L1_66 = "need arg: fw_name hw_ver\n"
    L0_65(L1_66)
    return
  end
  L0_65 = L2_2[1]
  L1_66 = L2_2[2]
  L12_12 = L1_66
  L11_11 = L0_65
  L0_65 = "/home/app/sd/"
  L1_66 = L11_11
  L0_65 = L0_65 .. L1_66
  L1_66 = L4_4.open
  L2_67 = L0_65
  L3_68 = "rb"
  L1_66 = L1_66(L2_67, L3_68)
  if not L1_66 then
    L2_67 = L13_13
    L3_68 = "Can't open file: %s\n"
    L4_69 = L0_65
    L2_67(L3_68, L4_69)
    return
  end
  L3_68 = L1_66
  L2_67 = L1_66.seek
  L4_69 = "end"
  L2_67 = L2_67(L3_68, L4_69)
  if L2_67 < 164 then
    L4_69 = L1_66
    L3_68 = L1_66.close
    L3_68(L4_69)
    L3_68 = L13_13
    L4_69 = "File(%s) size(%d) too small\n"
    L5_70 = L0_65
    L6_71 = L2_67
    L3_68(L4_69, L5_70, L6_71)
    return
  end
  L3_68 = L20_20
  L4_69 = L1_66
  L3_68 = L3_68(L4_69)
  if not L3_68 then
    L4_69 = L1_66
    L3_68 = L1_66.close
    L3_68(L4_69)
    return
  end
  L4_69 = L1_66
  L3_68 = L1_66.seek
  L5_70 = "set"
  L3_68(L4_69, L5_70)
  L3_68 = L14_14
  L4_69 = L1_66
  L5_70 = L2_67 - 32
  L3_68 = L3_68(L4_69, L5_70)
  if not L3_68 then
    L5_70 = L1_66
    L4_69 = L1_66.close
    L4_69(L5_70)
    L4_69 = L13_13
    L5_70 = "Can't get sum for file: %s\n"
    L6_71 = L0_65
    L4_69(L5_70, L6_71)
    return
  end
  L4_69 = L15_15
  L5_70 = L3_68
  L4_69 = L4_69(L5_70)
  L3_68 = L4_69
  L4_69 = L18_18
  L5_70 = L3_68
  L4_69 = L4_69(L5_70)
  L3_68 = L4_69
  L5_70 = L1_66
  L4_69 = L1_66.read
  L6_71 = 32
  L4_69 = L4_69(L5_70, L6_71)
  if L3_68 ~= L4_69 then
    L6_71 = L1_66
    L5_70 = L1_66.close
    L5_70(L6_71)
    L5_70 = L13_13
    L6_71 = "Invalid update file\n"
    L5_70(L6_71)
    return
  end
  L6_71 = L1_66
  L5_70 = L1_66.seek
  L7_72 = "set"
  L5_70(L6_71, L7_72)
  L5_70 = "/tmp/update_sd-fwhead.tmp"
  L6_71 = L19_19
  L7_72 = L1_66
  L6_71 = L6_71(L7_72, L5_70, 64)
  L7_72 = L1_66.close
  L7_72(L1_66)
  if not L6_71 then
    return
  end
  L7_72 = " >/dev/null 2>&1"
  L6_6.execute("/home/bin/flash_eraseall /dev/mtd10" .. L7_72)
  L6_6.execute("nandwrite -p -s 0 /dev/mtd10 " .. L0_65 .. L7_72)
  L6_6.execute("nandwrite -p -s 0x3100000 /dev/mtd10 " .. L5_70 .. L7_72)
  L7_7("1")
end
L21_21()