1 files changed, 5 insertions, 4 deletions
diff --git a/src/main.rs b/src/main.rs
index cd10277..9061ade 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -17,11 +17,13 @@ const ERROR_AUTH_FAILED:    u8 = 5;
 const ERROR_RUN_ROOT:       u8 = 6;
 const SUCCESS:              u8 = 0;
 
+const PERSIST_TIME:         u64 = 60 * 3;
+
 
 fn main() -> ExitCode {
     let args: Vec<String> = env::args().collect();
     if args.len() < 2 {
-        eprintln!("Invalid argument count.");
+        println!("usage: crab command [args]");
         return ExitCode::from(ERROR_ARGS);
     }
     let config = match config("/etc/crab.conf") {
@@ -135,7 +137,7 @@ fn get_terminal_process() -> Option<i32> {
         Ok(data) => data,
         Err(_) => return None
     };
-    Some(stat.tty_nr)
+    Some(stat.session)
 }
 
 fn is_file_root_only(id: &i32) -> bool {
@@ -181,7 +183,6 @@ fn write_terminal_config(id: &i32, data: &str) -> Result<(), Box<dyn std::error:
     Ok(())
 }
 
-
 fn get_persist(user: &str) -> bool {
     let json = match get_terminal_config() {
         Some(data) => data,
@@ -191,7 +192,7 @@ fn get_persist(user: &str) -> bool {
         Some(data) => data,
         None => return false
     };
-    return now() - timestamp < 60 * 3;
+    return now() - timestamp < PERSIST_TIME;
 }
 
 fn set_persist(user: &str) {