requestNewAuthToken will clear token if it fails

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Security: Mutual Authentication (mTLS or two way TLS)
 - Rename command line options for MTLS cert and Key
 - Update to use nanomsg v. 1.1.4
+- requestNewAuthToken will clear the token if it fails.
 
 ## [1.0.2] - 2019-02-08
 - Refactored connection.c and updated corresponding unit tests

src/auth_token.c

@@ -66,6 +66,7 @@ int requestNewAuthToken(char *newToken, size_t len, int r_count)
 
 	struct token_data data;
 	data.size = 0;
+	newToken[0] = '\0';
 
 	curl = curl_easy_init();
 	if(curl)