fix some cppcheck warnings

src/mesh/CryptoEngine.h

@@ -20,9 +20,9 @@ class CryptoEngine
 {
   protected:
     /** Our per packet nonce */
-    uint8_t nonce[16];
+    uint8_t nonce[16] = {0};
 
-    CryptoKey key;
+    CryptoKey key = {};
 
   public:
     virtual ~CryptoEngine() {}

src/mesh/PhoneAPI.h

@@ -45,7 +45,7 @@ class PhoneAPI
     /// We temporarily keep the nodeInfo here between the call to available and getFromRadio
     const NodeInfo *nodeInfoForPhone = NULL;
 
-    ToRadio toRadioScratch; // this is a static scratch object, any data must be copied elsewhere before returning
+    ToRadio toRadioScratch = {0}; // this is a static scratch object, any data must be copied elsewhere before returning
 
     /// Use to ensure that clients don't get confused about old messages from the radio
     uint32_t config_nonce = 0;
@@ -86,7 +86,7 @@ class PhoneAPI
 
   protected:
     /// Our fromradio packet while it is being assembled
-    FromRadio fromRadioScratch;
+    FromRadio fromRadioScratch = {};
 
     /** the last msec we heard from the client on the other side of this link */
     uint32_t lastContactMsec = 0;

src/mesh/RF95Interface.h

@@ -9,7 +9,7 @@
  */
 class RF95Interface : public RadioLibInterface
 {
-    RadioLibRF95 *lora; // Either a RFM95 or RFM96 depending on what was stuffed on this board
+    RadioLibRF95 *lora = NULL; // Either a RFM95 or RFM96 depending on what was stuffed on this board
 
   public:
     RF95Interface(RADIOLIB_PIN_TYPE cs, RADIOLIB_PIN_TYPE irq, RADIOLIB_PIN_TYPE rst, SPIClass &spi);
@@ -63,4 +63,4 @@ class RF95Interface : public RadioLibInterface
   private:
     /** Some boards require GPIO control of tx vs rx paths */
     void setTransmitEnable(bool txon);
-};
+};

src/mesh/RadioLibInterface.h

@@ -95,7 +95,7 @@ class RadioLibInterface : public RadioInterface, protected concurrency::Notified
     PhysicalLayer *iface;
 
     /// are _trying_ to receive a packet currently (note - we might just be waiting for one)
-    bool isReceiving;
+    bool isReceiving = false;
 
   public:
     /** Our ISR code currently needs this to find our active instance
@@ -183,4 +183,4 @@ class RadioLibInterface : public RadioInterface, protected concurrency::Notified
     virtual void addReceiveMetadata(MeshPacket *mp) = 0;
 
     virtual void setStandby() = 0;
-};
+};

src/mesh/StreamAPI.h

@@ -35,7 +35,7 @@ class StreamAPI : public PhoneAPI, protected concurrency::OSThread
      */
     Stream *stream;
 
-    uint8_t rxBuf[MAX_STREAM_BUF_SIZE];
+    uint8_t rxBuf[MAX_STREAM_BUF_SIZE] = {0};
     size_t rxPtr = 0;
 
     /// time of last rx, used, to slow down our polling if we haven't heard from anyone
@@ -81,5 +81,5 @@ class StreamAPI : public PhoneAPI, protected concurrency::OSThread
     bool canWrite = true;
 
     /// Subclasses can use this scratch buffer if they wish
-    uint8_t txBuf[MAX_STREAM_BUF_SIZE];
-};
+    uint8_t txBuf[MAX_STREAM_BUF_SIZE] = {0};
+};