fix status code error types

src/client/response/header/meta.rs

@@ -16,14 +16,14 @@ impl Meta {
             Some(value) => Ok(Self {
                 buffer: value.to_vec(),
             }),
-            None => return Err(Error::Undefined),
+            None => return Err(Error::Protocol),
         }
     }
 
     pub fn to_gstring(&self) -> Result<GString, Error> {
         match GString::from_utf8(self.buffer.clone()) {
             Ok(result) => Ok(result),
-            Err(_) => Err(Error::Undefined),
+            Err(_) => Err(Error::Decode),
         }
     }
 

src/client/response/header/meta/error.rs

@@ -1,5 +1,6 @@
 #[derive(Debug)]
 pub enum Error {
     Decode,
+    Protocol,
     Undefined,
 }

src/client/response/header/status.rs

@@ -23,7 +23,7 @@ impl Status {
                 Ok(string) => Self::from_string(string.as_str()),
                 Err(_) => Err(Error::Decode),
             },
-            None => Err(Error::Undefined),
+            None => Err(Error::Protocol),
         }
     }
 

src/client/response/header/status/error.rs

@@ -1,5 +1,6 @@
 #[derive(Debug)]
 pub enum Error {
     Decode,
+    Protocol,
     Undefined,
 }