Set TCP_NODELAY for !linux for raw sockets.

util.c

@@ -207,12 +207,18 @@ static void keep_sockalive(SOCKETTYPE fd)
 
 	setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (const void *)&tcp_one, sizeof(tcp_one));
 	if (!opt_delaynet)
+#ifndef __linux
+		setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (const void *)&tcp_one, sizeof(tcp_one));
+#else /* __linux */
 		setsockopt(fd, SOL_TCP, TCP_NODELAY, (const void *)&tcp_one, sizeof(tcp_one));
+#endif /* __linux */
+
 #ifdef __linux
 	setsockopt(fd, SOL_TCP, TCP_KEEPCNT, &tcp_one, sizeof(tcp_one));
 	setsockopt(fd, SOL_TCP, TCP_KEEPIDLE, &tcp_keepidle, sizeof(tcp_keepidle));
 	setsockopt(fd, SOL_TCP, TCP_KEEPINTVL, &tcp_keepintvl, sizeof(tcp_keepintvl));
 #endif /* __linux */
+
 #ifdef __APPLE_CC__
 	setsockopt(fd, IPPROTO_TCP, TCP_KEEPALIVE, &tcp_keepintvl, sizeof(tcp_keepintvl));
 #endif /* __APPLE_CC__ */