Create CHECK_CBOR_MULTI macro to return CborErrorTooManyItems error if the whole property cannot be appended to the CBOR buffer. Doing so the complete CBOR message will be discarded.

Author: pennam

src/cbor/lib/tinycbor/cbor-lib.h

@@ -21,4 +21,16 @@
     } while(0);
 #endif /* CHECK_CBOR */
 
+#ifndef CHECK_CBOR_MULTI
+  #define CHECK_CBOR_MULTI(expr)          \
+    do {                                  \
+      CborError error = CborNoError;      \
+      error = (expr);                     \
+      if (CborErrorOutOfMemory == error)  \
+        return CborErrorTooManyItems;     \
+      if (CborNoError != error)           \
+        return error;                     \
+    } while(0);
+#endif /* CHECK_CBOR_MULTI */
+
 #endif