added a simple password protection system

build.cfg

@@ -17,6 +17,7 @@ modules/lib/readline.lua
 modules/lib/shutil.lua
 modules/lib/sha256.lua
 modules/net/net-ext.lua
+modules/applications/login.lua
 modules/applications/luash.lua
 modules/applications/genkernel.lua
 fwrap skex exec/skex2.lua

hashpass.lua

@@ -0,0 +1,9 @@
+require "modules/lib/sha256"
+pass = io.read()
+salt = ""
+math.randomseed(os.time())
+for i = 1, 16 do
+ salt = salt .. string.char(math.random(32,127))
+end
+print("_G.PASS_HASH = \""..sha.sha256(pass..salt).."\"")
+print("_G.PASS_SALT = \""..salt.."\"")

modules/applications/login.lua

@@ -0,0 +1,14 @@
+function login()
+ if _G.PASS_HASH and _G.PASS_SALT then
+  io.write("\f")
+  io.write(_G.MOTD.."\nPassword: ")
+  local pt = io.read()
+  if pt then
+   if sha.sha256(pt.._G.PASS_SALT) == _G.PASS_HASH then
+    return true
+   end
+  end
+  return false
+ end
+ return true
+end

modules/applications/luash.lua

@@ -1,6 +1,8 @@
 function luash(si)
 spawn("lua shell",function()
- print(MOTD)
+ repeat
+ until login()
+ print("\f"..MOTD)
  print(_VERSION)
  while true do
   write((os.getenv("PWD") or "").."> ")