From 529112225af4b4c337132e636576581a93d31acd Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Thu, 23 Jul 2020 17:57:23 -0400
Subject: [PATCH] Make duplicate interface addresses emit EADDRINUSE

---
 src/if.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/if.c b/src/if.c
index fc315c1..aa594f6 100644
--- a/src/if.c
+++ b/src/if.c
@@ -211,7 +211,7 @@ int patty_ax25_if_addr_add(patty_ax25_if *iface,
     patty_ax25_addr *addr;
 
     if (find_addr(iface, callsign) != NULL) {
-        errno = EEXIST;
+        errno = EADDRINUSE;
 
         goto error_exists;
     }