Use BASE_NAME constant everywhere isntead of hard-coded name

src/config.rs

@@ -13,11 +13,13 @@
  * limitations under the License.
  */
 
+use crate::BASE_NAME;
+
 use serde::de::Deserialize;
 
 extern crate config;
 
-const DEFAULT_CONFIG_FILE: &str = "/etc/nss_pam_oidc";
+const DEFAULT_CONFIG_FILE: &str = ("/etc/".to_string() + BASE_NAME).as_str();
 
 pub fn get_config(conf_args: Option<config::Config>) -> config::Config {
     // Preset default configuration
@@ -35,7 +37,7 @@ pub fn get_config(conf_args: Option<config::Config>) -> config::Config {
     conf.merge(config::File::with_name(&config_file)).ok();
 
     // Override configuration from environment variables
-    conf.merge(config::Environment::with_prefix("NSS_PAM_OIDC")).ok();
+    conf.merge(config::Environment::with_prefix(BASE_NAME.to_string().to_uppercase().as_str())).ok();
 
     // Override configuration from args passed on module loading (e.g. args in PAM stack)
     conf.merge(conf_args).ok();

src/logging.rs

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+use crate::BASE_NAME;
+
 use std::process;
 use std::convert::TryInto;
 
@@ -24,7 +26,7 @@ pub fn setup_log(log_level: LevelFilter) {
     let formatter = Formatter3164 {
         facility: Facility::LOG_AUTHPRIV,
         hostname: None,
-        process: "nss_pam_oidc".into(),
+        process: BASE_NAME.into(),
         pid: process::id().try_into().unwrap_or_default(),
     };
     let logger = syslog::unix(formatter).expect("could not connect to syslog");