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alertnotificationclient: Make use of extra char in message array for \0

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Finlay Davidson 2023-03-17 13:38:52 +01:00
parent 11ade64166
commit d1b16a7dcb
1 changed files with 9 additions and 11 deletions
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20
src/components/ble/AlertNotificationClient.cpp
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@ -143,24 +143,22 @@ int AlertNotificationClient::OnDescriptorDiscoveryEventCallback(uint16_t connect
void AlertNotificationClient::OnNotification(ble_gap_event* event) {
if (event->notify_rx.attr_handle == newAlertHandle) {
constexpr size_t stringTerminatorSize = 1; // end of string '\0'
constexpr size_t headerSize = 3;
const auto maxMessageSize {NotificationManager::MaximumMessageSize()};
const auto maxBufferSize {maxMessageSize + headerSize};
constexpr uint32_t headerSize = 3;
constexpr uint32_t maxMessageSize = NotificationManager::MaximumMessageSize();
// Ignore notifications with empty message
const auto packetLen = OS_MBUF_PKTLEN(event->notify_rx.om);
if (packetLen <= headerSize)
const uint32_t packetLen = OS_MBUF_PKTLEN(event->notify_rx.om);
if (packetLen <= headerSize) {
return;
}
size_t bufferSize = std::min(packetLen + stringTerminatorSize, maxBufferSize);
auto messageSize = std::min(maxMessageSize, (bufferSize - headerSize));
const uint32_t messageSize = std::min(maxMessageSize, packetLen - headerSize);
NotificationManager::Notification notif;
os_mbuf_copydata(event->notify_rx.om, headerSize, messageSize - 1, notif.message.data());
notif.message[messageSize - 1] = '\0';
os_mbuf_copydata(event->notify_rx.om, headerSize, messageSize, notif.message.data());
notif.message[messageSize] = '\0';
notif.size = messageSize;
notif.category = Pinetime::Controllers::NotificationManager::Categories::SimpleAlert;
notif.category = NotificationManager::Categories::SimpleAlert;
notificationManager.Push(std::move(notif));
systemTask.PushMessage(Pinetime::System::Messages::OnNewNotification);