X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/d62bcc17f303f30d1e3df1051b1390202a21cf9c..a41a1e87182410ec6c2eeaddb0cd961ec554c404:/socket.c

diff --git a/socket.c b/socket.c
index 549d40d4..5810c48b 100644
--- a/socket.c
+++ b/socket.c
@@ -369,8 +369,12 @@ static int *open_socket_in(int type, int port, const char *bind_address,
 
 #ifdef IPV6_V6ONLY
 		if (resp->ai_family == AF_INET6) {
-			setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
-				   (char *)&one, sizeof one);
+			if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
+				       (char *)&one, sizeof one) < 0
+			    && default_af_hint != AF_INET6) {
+				close(s);
+				continue;
+			}
 		}
 #endif
 
@@ -723,14 +727,16 @@ static int socketpair_tcp(int fd[2])
 		goto failed;
 
 	close(listener);
+	listener = -1;
+
+	set_blocking(fd[1]);
+
 	if (connect_done == 0) {
 		if (connect(fd[1], (struct sockaddr *)&sock, sizeof sock) != 0
 		    && errno != EISCONN)
 			goto failed;
 	}
 
-	set_blocking(fd[1]);
-
 	/* all OK! */
 	return 0;