Minor fixes and error tolerance

src/protocol/mod.rs

@@ -1,5 +1,3 @@
-use std::string;
-
 pub struct HandShake<'a> {
     len_pack: u8,
     len_dom: u8,
@@ -19,7 +17,7 @@ impl<'a> HandShake<'a>{
         }
     }
 
-    pub fn getHostName(&self) -> String {
+    pub fn get_host_name(&self) -> String {
         String::from_utf8(self.datagram[5 .. ((self.len_dom+5) as usize)].to_vec()).unwrap()
     }