From 2c671679299ad472d54cd33a8c16d4355ede982b Mon Sep 17 00:00:00 2001
From: Michael Brown <mcb30@etherboot.org>
Date: Thu, 1 Feb 2007 07:18:56 +0000
Subject: [PATCH] Don't pass through zero-length requests

---
 src/net/stream.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/net/stream.c b/src/net/stream.c
index bf49bb9e..86fb3066 100644
--- a/src/net/stream.c
+++ b/src/net/stream.c
@@ -156,6 +156,10 @@ void stream_acked ( struct stream_connection *conn, size_t len ) {
 		return;
 	}
 
+	/* Ignore zero-length blocks */
+	if ( len == 0 )
+		return;
+
 	/* Hand off to application */
 	if ( app->op->acked )
 		app->op->acked ( app, len );
@@ -181,6 +185,10 @@ void stream_newdata ( struct stream_connection *conn,
 		return;
 	}
 
+	/* Ignore zero-length blocks */
+	if ( len == 0 )
+		return;
+
 	/* Hand off to application */
 	if ( app->op->newdata )
 		app->op->newdata ( app, data, len );
@@ -297,6 +305,10 @@ int stream_send ( struct stream_application *app,
 		return -ENOTCONN;
 	}
 
+	/* Ignore zero-length blocks */
+	if ( len == 0 )
+		return 0;
+
 	/* Hand off to connection */
 	if ( ! conn->op->send )
 		return -ENOTSUP;