* libs/httpd: Introduced keep-alive and pipelining support

[project/luci.git] / libs / core / luasrc / sys.lua

diff --git a/libs/core/luasrc/sys.lua b/libs/core/luasrc/sys.lua
index 17caa78..54c4e06 100644 (file)
--- a/libs/core/luasrc/sys.lua
+++ b/libs/core/luasrc/sys.lua
@@ -134,6 +134,23 @@ function syslog()
 end
 
 
+-- Generates a random key of length BYTES
+function uniqueid(bytes)
+       local fp    = io.open("/dev/urandom")
+       local chunk = { fp:read(bytes):byte(1, bytes) }
+       fp:close()
+       
+       local hex = ""
+       
+       local pattern = "%02X" 
+       for i, byte in ipairs(chunk) do
+               hex = hex .. pattern:format(byte)
+       end
+       
+       return hex
+end
+
+
 group = {}
 group.getgroup = posix.getgroup