Use correct protocol level for IP_MULTICAST_foo flags

The SOL_SOCKET protocol level works only on Linux, not on FreeBSD. The IPPROTO_IP protocol level is the canonical, which both support, and is also documented in Linux ip(7). Signed-off-by: Joachim Wiberg <[email protected]>
troglobit · Aug 19, 2021 · 6fbbc42 · 6fbbc42
1 parent b03d00e
commit 6fbbc42
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/socket.c b/src/socket.c
@@ -111,11 +111,11 @@ int socket_create(int domain, int type, int proto, void (*cb)(int, void *), void
 		} else
 #endif /* HAVE_IPV6_MULTICAST_HOST */
 		{
-			if (setsockopt(sd, SOL_SOCKET, IP_MULTICAST_LOOP, &val, sizeof(val)))
+			if (setsockopt(sd, IPPROTO_IP, IP_MULTICAST_LOOP, &val, sizeof(val)))
 				smclog(LOG_WARNING, "failed disabling IP_MULTICAST_LOOP: %s",
 				       strerror(errno));
 #ifdef IP_MULTICAST_ALL
-			if (setsockopt(sd, SOL_SOCKET, IP_MULTICAST_ALL, &val, sizeof(val)))
+			if (setsockopt(sd, IPPROTO_IP, IP_MULTICAST_ALL, &val, sizeof(val)))
 				smclog(LOG_WARNING, "failed disabling IP_MULTICAST_ALL: %s",
 				       strerror(errno));
 #endif