From a5747a843e03bcf80cdf02c39b6b71fc9664e0df Mon Sep 17 00:00:00 2001
From: Rob Bradford <robert.bradford@intel.com>
Date: Tue, 31 Mar 2020 16:43:09 +0100
Subject: [PATCH] net_util: Implement FromStr for MacAddr

This allows it to be used with str::parse().

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
---
 net_util/src/mac.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net_util/src/mac.rs b/net_util/src/mac.rs
index 36ac0f004..4a032ffa2 100644
--- a/net_util/src/mac.rs
+++ b/net_util/src/mac.rs
@@ -9,6 +9,7 @@ use rand::Rng;
 use std::fmt;
 use std::io;
 use std::result::Result;
+use std::str::FromStr;
 
 use serde::de::{Deserialize, Deserializer, Error};
 use serde::ser::{Serialize, Serializer};
@@ -120,6 +121,18 @@ impl<'de> Deserialize<'de> for MacAddr {
     }
 }
 
+pub enum MacAddrParseError {
+    InvalidValue(String),
+}
+
+impl FromStr for MacAddr {
+    type Err = MacAddrParseError;
+
+    fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
+        MacAddr::parse_str(s).map_err(|_| MacAddrParseError::InvalidValue(s.to_owned()))
+    }
+}
+
 #[cfg(test)]
 mod tests {
     extern crate serde_json;