From 528fe383979cb7a30887bd820aa199c0ad4b0537 Mon Sep 17 00:00:00 2001
From: Ulrich Mohr <mohr@irs.uni-stuttgart.de>
Date: Fri, 6 Oct 2023 22:46:59 +0200
Subject: [PATCH] TFT downlinks 50KiB

---
 mission/testIp.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/mission/testIp.cpp b/mission/testIp.cpp
index 50aa36e..1362766 100644
--- a/mission/testIp.cpp
+++ b/mission/testIp.cpp
@@ -24,8 +24,11 @@ extern "C" {
 
 void slipif_rxbyte_input(struct netif *netif, u8_t c);
 
+uint8_t packets = 0;
+
 static void *tftp_open(const char *fname, const char *mode, u8_t is_write) {
   LWIP_UNUSED_ARG(mode);
+  packets = 100;
   return (void *)13;
 }
 
@@ -33,7 +36,12 @@ static void tftp_close(void *handle) {}
 
 static int tftp_read(void *handle, void *buf, int bytes) {
   memset(buf, 'x', bytes);
-  return bytes - 60;
+  if (packets == 0) {
+    return 0;
+  } else {
+    packets--;
+    return bytes;
+  }
 }
 
 static int tftp_write(void *handle, struct pbuf *p) { return 0; }
@@ -89,7 +97,6 @@ void forwardPackets(void *) {
   }
 }
 
-
 // TODO define sio_fd_t to an int
 uint32_t sio_data;