irq-demo: Implement check mechanism to detected unknown user arguments

465bb76a · Miguel Jimenez Lopez · 6819b27a · 465bb76a · 465bb76a
Commit 465bb76a authored Oct 21, 2020 by Miguel Jimenez Lopez
Hide whitespace changes
Inline Side-by-side

Showing with 21 additions and 0 deletions

irq-demo-private.h sw/irq-demo/irq-demo-private.h +1 -0

irq-demo.c sw/irq-demo/irq-demo.c +20 -0

No files found.
--- a/sw/irq-demo/irq-demo-private.h
+++ b/sw/irq-demo/irq-demo-private.h
@@ -38,6 +38,7 @@ static int parse_user_arguments(int argc, char *argv[], user_args parsed_args);
 static void destroy_user_arguments(user_args args);

 static void show_help(void);
+static int check_unknown_user_arguments(int optind, int argc, char **argv);
 static unsigned int check_user_stop(void);
 static void set_stdin_as_nonblocking(void);
 static void exit_abruptly(int sig);

--- a/sw/irq-demo/irq-demo.c
+++ b/sw/irq-demo/irq-demo.c
@@ -225,6 +225,11 @@ static int parse_user_arguments(int argc, char *argv[], user_args parsed_args)
 		}
 	}

+	if(check_unknown_user_arguments(optind, argc, argv)) {
+		show_help();
+		return 1;
+	}
+
 	return 0;
 }

@@ -245,6 +250,21 @@ static void show_help(void)
 	printf("Please, press 'q' key + ENTER or CNTRL+C to exit from the demo tool\n");
 }

+static int check_unknown_user_arguments(int optind, int argc, char **argv)
+{
+	int ret = 0;
+
+	if (optind < argc) {
+		printf ("Unknown options: ");
+		while (optind < argc)
+			printf ("%s ", argv[optind++]);
+		printf ("\n");
+		ret = 1;
+	}
+
+	return ret;
+}
+
 static unsigned int check_user_stop(void)
 {
 	char c;