From edc95679cd7a37c14f0f155b03ba6bd4523769fa Mon Sep 17 00:00:00 2001
From: M Aiman Ismail <muhammadaimanbin.ismail@haw-hamburg.de>
Date: Tue, 30 Jun 2020 21:38:54 +0200
Subject: [PATCH] cord_ep: allow not specify netif if only one interface exist

---
 sys/shell/commands/sc_cord_ep.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/shell/commands/sc_cord_ep.c b/sys/shell/commands/sc_cord_ep.c
index e2abdfdb03..0e32adce28 100644
--- a/sys/shell/commands/sc_cord_ep.c
+++ b/sys/shell/commands/sc_cord_ep.c
@@ -32,8 +32,12 @@ static int make_sock_ep(sock_udp_ep_t *ep, const char *addr)
     if (sock_udp_str2ep(ep, addr) < 0) {
         return -1;
     }
+    /* if netif not specified in addr */
+    if ((ep->netif == SOCK_ADDR_ANY_NETIF) && (gnrc_netif_numof() == 1)) {
+        /* assign the single interface found in gnrc_netif_numof() */
+        ep->netif = (uint16_t)gnrc_netif_iter(NULL)->pid;
+    }
     ep->family  = AF_INET6;
-    ep->netif   = SOCK_ADDR_ANY_NETIF;
     if (ep->port == 0) {
         ep->port = COAP_PORT;
     }