From f5c4e369eae43b00c2ce7dc58a9dfef8dbf3f66b Mon Sep 17 00:00:00 2001
From: Tedd Ho-Jeong An <tedd.an@intel.com>
Date: Mon, 25 Mar 2019 20:08:47 -0700
Subject: [PATCH] net: sockets: Update setsockopt to handle IPV6_V6ONLY

This patch adds a routine that handles IPV6_V6ONLY option in setsockopt
function.

Fixes #14657

Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com>
---
 subsys/net/lib/sockets/sockets.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/subsys/net/lib/sockets/sockets.c b/subsys/net/lib/sockets/sockets.c
index 1bbca91f17d..b7accde29cf 100644
--- a/subsys/net/lib/sockets/sockets.c
+++ b/subsys/net/lib/sockets/sockets.c
@@ -1133,6 +1133,16 @@ int zsock_setsockopt_ctx(struct net_context *ctx, int level, int optname,
 			return 0;
 		}
 		break;
+
+	case IPPROTO_IPV6:
+		switch (optname) {
+		case IPV6_V6ONLY:
+			/* Ignore for now. Provided to let port
+			 * existing apps.
+			 */
+			return 0;
+		}
+		break;
 	}
 
 	errno = ENOPROTOOPT;