2 files changed, 9 insertions, 1 deletions
diff --git a/dbutil.c b/dbutil.c
index f1a0f19..7f3fb59 100644
--- a/dbutil.c
+++ b/dbutil.c
@@ -1070,9 +1070,10 @@ static void connect_try_next(struct dropbear_progress_connection *c) {
 #endif
 #else
 		{
-			struct msghdr message = {0};
+			struct msghdr message;
 			int flags;
 			int res;
+			memset(&message, 0x0, sizeof(message));
 			message.msg_name = r->ai_addr;
 			message.msg_namelen = r->ai_addrlen;
 
diff --git a/dbutil.h b/dbutil.h
index c82e494..b4a8f42 100644
--- a/dbutil.h
+++ b/dbutil.h
@@ -80,6 +80,13 @@ void set_sock_priority(int sock, enum dropbear_prio prio);
 #if defined(__linux__) && HAVE_SENDMSG
 #define DROPBEAR_TCP_FAST_OPEN
 void set_listen_fast_open(int sock);
+/* may be supported by kernel but not libc */
+#ifndef TCP_FASTOPEN
+#define TCP_FASTOPEN 23
+#endif
+#ifndef MSG_FASTOPEN
+#define MSG_FASTOPEN 0x20000000
+#endif
 #endif
 
 int dropbear_listen(const char* address, const char* port,