Handle missing identity file in rncp. Fixes #317.

RNS/Identity.py

@@ -452,7 +452,7 @@ class Identity:
             return False
         except Exception as e:
             RNS.log("Error while loading identity from "+str(path), RNS.LOG_ERROR)
-            RNS.log("The contained exception was: "+str(e))
+            RNS.log("The contained exception was: "+str(e), RNS.LOG_ERROR)
 
     def get_salt(self):
         return self.hash

RNS/Utilities/rncp.py

@@ -226,7 +226,12 @@ def send(configdir, verbosity = 0, quietness = 0, destination = None, file = Non
 
     identity_path = RNS.Reticulum.identitypath+"/"+APP_NAME
     if os.path.isfile(identity_path):
-        identity = RNS.Identity.from_file(identity_path)                
+        identity = RNS.Identity.from_file(identity_path)
+        if identity == None:
+            RNS.log("Could not load identity for rncp. The identity file at \""+str(identity_path)+"\" may be corrupt or unreadable.", RNS.LOG_ERROR)
+            exit(2)
+    else:
+        identity = None
 
     if identity == None:
         RNS.log("No valid saved identity found, creating new...", RNS.LOG_INFO)