diff --git a/lib/client-handshake.c b/lib/client-handshake.c
index de99a208eb..2dd810c561 100644
--- a/lib/client-handshake.c
+++ b/lib/client-handshake.c
@@ -85,7 +85,7 @@ struct libwebsocket *__libwebsocket_client_connect_2(
 
 	if (context->http_proxy_port) {
 
-		n = send(wsi->sock, context->service_buffer, plen, 0);
+		n = send(wsi->sock, context->service_buffer, plen, MSG_NOSIGNAL);
 		if (n < 0) {
 			compatible_close(wsi->sock);
 			lwsl_debug("ERROR writing to proxy socket\n");
diff --git a/lib/client.c b/lib/client.c
index dc6dacb94f..45e83af51d 100644
--- a/lib/client.c
+++ b/lib/client.c
@@ -229,7 +229,7 @@ int lws_client_socket_service(struct libwebsocket_context *context,
 		else
 #endif
 			n = send(wsi->sock, context->service_buffer,
-					p - (char *)context->service_buffer, 0);
+					p - (char *)context->service_buffer, MSG_NOSIGNAL);
 		lws_latency(context, wsi,
 			"send or SSL_write LWS_CONNMODE...HANDSHAKE",
 								     n, n >= 0);
@@ -774,7 +774,7 @@ libwebsockets_generate_client_handshake(struct libwebsocket_context *context,
 	p += strlen(key_b64);
 	p += sprintf(p, "\x0d\x0a");
 	if (lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_ORIGIN))
-		p += sprintf(p, "Origin: %s\x0d\x0a",
+		p += sprintf(p, "Origin: http://%s\x0d\x0a",
 			     lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_ORIGIN));
 
 	if (lws_hdr_simple_ptr(wsi, _WSI_TOKEN_CLIENT_SENT_PROTOCOLS))
diff --git a/lib/libwebsockets.c b/lib/libwebsockets.c
index ce6bae0bba..21377aba26 100644
--- a/lib/libwebsockets.c
+++ b/lib/libwebsockets.c
@@ -210,6 +210,8 @@ libwebsocket_close_and_free_session(struct libwebsocket_context *context,
 		lwsl_debug("closing http fd %d\n", wsi->u.http.fd);
 		close(wsi->u.http.fd);
 		wsi->u.http.fd = 0;
+		context->protocols[0].callback(context, wsi,
+			LWS_CALLBACK_CLOSED_HTTP, wsi->user_space, NULL, 0);
 	}
 
 #ifndef LWS_NO_EXTENSIONS
@@ -368,6 +370,10 @@ libwebsocket_close_and_free_session(struct libwebsocket_context *context,
 		lwsl_debug("calling back CLOSED\n");
 		wsi->protocol->callback(context, wsi, LWS_CALLBACK_CLOSED,
 						      wsi->user_space, NULL, 0);
+	} else if ( wsi->mode == LWS_CONNMODE_HTTP_SERVING_ACCEPTED ) {
+		lwsl_debug("calling back CLOSED_HTTP\n");
+		context->protocols[0].callback(context, wsi,
+			LWS_CALLBACK_CLOSED_HTTP, wsi->user_space, NULL, 0 );
 	} else
 		lwsl_debug("not calling back closed\n");
 
diff --git a/lib/libwebsockets.h b/lib/libwebsockets.h
index 65bae14534..9f686bd879 100644
--- a/lib/libwebsockets.h
+++ b/lib/libwebsockets.h
@@ -138,6 +138,7 @@ enum libwebsocket_callback_reasons {
 	LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH,
 	LWS_CALLBACK_CLIENT_ESTABLISHED,
 	LWS_CALLBACK_CLOSED,
+	LWS_CALLBACK_CLOSED_HTTP,
 	LWS_CALLBACK_RECEIVE,
 	LWS_CALLBACK_CLIENT_RECEIVE,
 	LWS_CALLBACK_CLIENT_RECEIVE_PONG,
@@ -419,6 +420,8 @@ struct libwebsocket_extension;
  *
  *	LWS_CALLBACK_CLOSED: when the websocket session ends
  *
+ *	LWS_CALLBACK_CLOSED_HTTP: when a HTTP (non-websocket) session ends
+ *
  *	LWS_CALLBACK_RECEIVE: data has appeared for this server endpoint from a
  *				remote client, it can be found at *in and is
  *				len bytes long
diff --git a/lib/output.c b/lib/output.c
index ef823c3e9f..224a0f27a5 100644
--- a/lib/output.c
+++ b/lib/output.c
@@ -311,7 +311,7 @@ LWS_VISIBLE int libwebsocket_write(struct libwebsocket *wsi, unsigned char *buf,
 	int m;
 #endif
 
-	if (len == 0 && protocol != LWS_WRITE_CLOSE) {
+	if (len == 0 && protocol != LWS_WRITE_CLOSE && protocol != LWS_WRITE_PING && protocol != LWS_WRITE_PONG) {
 		lwsl_warn("zero length libwebsocket_write attempt\n");
 		return 0;
 	}
@@ -504,7 +504,6 @@ LWS_VISIBLE int libwebsocket_write(struct libwebsocket *wsi, unsigned char *buf,
 LWS_VISIBLE int libwebsockets_serve_http_file_fragment(
 		struct libwebsocket_context *context, struct libwebsocket *wsi)
 {
-	int ret = 0;
 	int n, m;
 
 	while (!lws_send_pipe_choked(wsi)) {
@@ -516,7 +515,7 @@ LWS_VISIBLE int libwebsockets_serve_http_file_fragment(
 			if (m < 0)
 				return -1;
 
-			wsi->u.http.filepos += n;
+			wsi->u.http.filepos += m;
 			if (m != n)
 				/* adjust for what was not sent */
 				lseek(wsi->u.http.fd, m - n, SEEK_CUR);
@@ -525,23 +524,23 @@ LWS_VISIBLE int libwebsockets_serve_http_file_fragment(
 		if (n < 0)
 			return -1; /* caller will close */
 
-		if (n < sizeof(context->service_buffer) ||
-				wsi->u.http.filepos == wsi->u.http.filelen) {
+		if (wsi->u.http.filepos == wsi->u.http.filelen) {
 			wsi->state = WSI_STATE_HTTP;
 
 			if (wsi->protocol->callback)
-				ret = user_callback_handle_rxflow(
+				/* ignore callback returned value */
+				user_callback_handle_rxflow(
 					wsi->protocol->callback, context, wsi,
 					LWS_CALLBACK_HTTP_FILE_COMPLETION,
 					wsi->user_space, NULL, 0);
-			return ret;
+			return 1;  /* >0 indicates completed */
 		}
 	}
 
 	lwsl_notice("choked before able to send whole file (post)\n");
 	libwebsocket_callback_on_writable(context, wsi);
 
-	return ret;
+	return 0; /* indicates further processing must be done */
 }
 
 /**
diff --git a/lib/sha-1.c b/lib/sha-1.c
index 67b17e1eb2..b1cb96fe46 100644
--- a/lib/sha-1.c
+++ b/lib/sha-1.c
@@ -215,7 +215,7 @@ sha1_step(struct sha1_ctxt *ctxt)
 
 /*------------------------------------------------------------*/
 
-void
+static void
 sha1_init(struct sha1_ctxt *ctxt)
 {
 	bzero(ctxt, sizeof(struct sha1_ctxt));