From cf59d49d2566efac30b57d8bc1f6f62373d86ab5 Mon Sep 17 00:00:00 2001
From: Romain Vimont <rvimont@genymobile.com>
Date: Thu, 15 Feb 2018 23:47:07 +0100
Subject: [PATCH] Detect failure of device information read

If the received data is smaller than the device information size, then
something is wrong.
---
 app/src/device.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/src/device.c b/app/src/device.c
index 761e2446..a166274f 100644
--- a/app/src/device.c
+++ b/app/src/device.c
@@ -3,7 +3,8 @@
 
 SDL_bool device_read_info(socket_t device_socket, char *device_name, struct size *size) {
     unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
-    if (net_recv(device_socket, buf, sizeof(buf)) <= 0) {
+    int r = net_recv(device_socket, buf, sizeof(buf));
+    if (r < DEVICE_NAME_FIELD_LENGTH + 4) {
         LOGE("Could not retrieve device information");
         return SDL_FALSE;
     }