--- trunk/reactos/drivers/lib/oskittcp/oskittcp/tcp_output.c 2005-12-23 18:03:12 UTC (rev 20313)
+++ trunk/reactos/drivers/lib/oskittcp/oskittcp/tcp_output.c 2005-12-23 20:44:39 UTC (rev 20314)
@@ -66,7 +66,10 @@
extern struct mbuf *m_copypack();
#endif
+#define IS_LOOPBACK_ADDR(addr) \
+ ((ntohl(addr) & IN_CLASSA_NET) == (IN_LOOPBACKNET << IN_CLASSA_NSHIFT))
+
/*
* Tcp output routine: figure out what should be sent and send it.
*/
@@ -215,8 +218,8 @@
win = sbspace(&so->so_rcv);
/*
- * Sender silly window avoidance. If connection is idle
- * and can send all data, a maximum segment,
+ * Sender silly window avoidance. If connection is idle or using
+ * the loopback interface and can send all data, a maximum segment,
* at least a maximum default-size segment do it,
* or are forced, do it; otherwise don't bother.
* If peer's buffer is tiny, then send
@@ -227,7 +230,8 @@
if (len) {
if (len == tp->t_maxseg)
goto send;
- if ((idle || tp->t_flags & TF_NODELAY) &&
+ if ((idle || tp->t_flags & TF_NODELAY ||
+ IS_LOOPBACK_ADDR(tp->t_inpcb->inp_laddr.s_addr)) &&
(tp->t_flags & TF_NOPUSH) == 0 &&
len + off >= so->so_snd.sb_cc)
goto send;