From 066e69986b96bf83dfa2ec09f6b03b6a7ad6bbd6 Mon Sep 17 00:00:00 2001
From: David Gibson <david@gibson.dropbear.id.au>
Date: Wed, 21 Aug 2024 14:19:58 +1000
Subject: util: Helper for formatting MAC addresses

There are a couple of places where we somewhat messily open code formatting
an Ethernet like MAC address for display.  Add an eth_ntop() helper for
this.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
---
 util.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'util.h')

diff --git a/util.h b/util.h
index cb4d181..a716849 100644
--- a/util.h
+++ b/util.h
@@ -215,9 +215,12 @@ static inline const char *af_name(sa_family_t af)
 
 #define SOCKADDR_STRLEN		MAX(SOCKADDR_INET_STRLEN, SOCKADDR_INET6_STRLEN)
 
+#define ETH_ADDRSTRLEN		(sizeof("00:11:22:33:44:55"))
+
 struct sock_extended_err;
 
 const char *sockaddr_ntop(const void *sa, char *dst, socklen_t size);
+const char *eth_ntop(const unsigned char *mac, char *dst, size_t size);
 const char *str_ee_origin(const struct sock_extended_err *ee);
 
 /**
-- 
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