Smalls improvements

- Improve robustness reading a BCM socket
  Adding checks on system calls and remove the initialization of the
  struct that will hold the received message, not so much needed in
  that case.
- More accurate log message at subscription/unsubscription step whether
  this is a FD CAN messages or not and if this a subscription or an
  unsubscription that is requested.
- Initialize the full struct of vehicle message to avoid memory warning
  about conditionnal jump based on uninitialized bytes.
- Memleak: Free raw pointer on active diagnostic requests

Change-Id: I4bbf4d851c0fa1efdb6fa6034fac3d1dcafa1a73
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 4 insertions, 1 deletions

diff --git a/low-can-binding/utils/openxc-utils.cpp b/low-can-binding/utils/openxc-utils.cpp
index e454121b..c06beabb 100644
--- a/low-can-binding/utils/openxc-utils.cpp
+++ b/low-can-binding/utils/openxc-utils.cpp
@@ -34,6 +34,7 @@
 const openxc_VehicleMessage build_VehicleMessage(active_diagnostic_request_t* request, const DiagnosticResponse& response, float parsed_value)
 {
 	openxc_VehicleMessage message;
+	::memset(&message, 0, sizeof(message));
 	application_t& app = application_t::instance();
 
 	message.has_type = true;
@@ -98,6 +99,7 @@ const openxc_VehicleMessage build_VehicleMessage(active_diagnostic_request_t* re
 const openxc_VehicleMessage build_VehicleMessage(const openxc_SimpleMessage& message, uint64_t timestamp)
 {
 	openxc_VehicleMessage v;
+	::memset(&v, 0, sizeof(v));
 
 	v.has_type = true,
 	v.type = openxc_VehicleMessage_Type::openxc_VehicleMessage_Type_SIMPLE;
@@ -120,6 +122,7 @@ const openxc_VehicleMessage build_VehicleMessage(const openxc_SimpleMessage& mes
 const openxc_VehicleMessage build_VehicleMessage(const openxc_SimpleMessage& message)
 {
 	openxc_VehicleMessage v;
+	::memset(&v, 0, sizeof(v));
 
 	v.has_type = true,
 	v.type = openxc_VehicleMessage_Type::openxc_VehicleMessage_Type_SIMPLE;
@@ -141,7 +144,7 @@ openxc_VehicleMessage build_VehicleMessage()
 {
 	openxc_VehicleMessage v;
 
-	::memset(&v, 0, sizeof(openxc_VehicleMessage));
+	::memset(&v, 0, sizeof(v));
 	return v;
 }