2 files changed, 29 insertions, 1 deletions
diff --git a/src/pawsd.lua b/src/pawsd.lua
index 8efae57..4c7f82f 100644
--- a/src/pawsd.lua
+++ b/src/pawsd.lua
@@ -9,7 +9,11 @@ local verbs = {
 }
 
 -- metadata
-local magic = "5061775271757374" -- PawRqust
+local magic = {
+    REQUEST = "5061775271757374", -- PawRqust
+    RESPONSE = "5061775273706E73" -- PawRspns
+}
+
 local version = "0001"
 
 -- supported key algorithms
@@ -17,9 +21,21 @@ local keyalg = {
     ED25519 = "63af"
 }
 
+-- response codes
+local responses = {
+    OK = "0200",
+    CLIENT_ERROR = "0400",
+    NOT_FOUND = "0404",
+    SERVER_ERROR = "0500",
+    NOT_IMPLEMENTED = "0501",
+    UNAVAILABLE = "0503",
+    UNKNOWN = "0505"
+}
+
 -- return
 return {
     Verbs = verbs,
+    Responses = responses,
     Magic = magic,
     Version = version,
     KeyAlg = keyalg
diff --git a/src/utils.lua b/src/utils.lua
index af6e91f..5bcbc8c 100644
--- a/src/utils.lua
+++ b/src/utils.lua
@@ -15,3 +15,15 @@ function string.fromhex(str)
         return string.char(tonumber(cc, 16))
     end))
 end
+
+-- get information from the pawsd response
+function extractfromresponse(response, start, last)
+
+    local result = {}
+
+    table.move(response, start, last, 1, result)
+    result = string.tohex(table.concat(result))
+
+    return result
+
+end