1 files changed, 15 insertions, 17 deletions

diff --git a/trace-stack.c b/trace-stack.c
index 3d9f392..24ba194 100644
--- a/trace-stack.c
+++ b/trace-stack.c
@@ -153,6 +153,10 @@ static void read_trace(void)
         fclose(fp);
 }
 
+#define OPT_start       255
+#define OPT_stop        254
+#define OPT_reset       253
+
 void trace_stack (int argc, char **argv)
 {
         enum stack_type trace_type = STACK_REPORT;
@@ -167,9 +171,9 @@ void trace_stack (int argc, char **argv)
         for (;;) {
                 int option_index = 0;
                 static struct option long_options[] = {
-                        {"start", no_argument, NULL, 0},
-                        {"stop", no_argument, NULL, 0},
-                        {"reset", no_argument, NULL, 0},
+                        {"start", no_argument, NULL, OPT_start},
+                        {"stop", no_argument, NULL, OPT_stop},
+                        {"reset", no_argument, NULL, OPT_reset},
                         {"help", no_argument, NULL, '?'},
                         {NULL, 0, NULL, 0}
                 };
@@ -183,20 +187,14 @@ void trace_stack (int argc, char **argv)
                 case 'h':
                         usage(argv);
                         break;
-                case 0:
-                        switch(option_index) {
-                        case 0:
-                                trace_type = STACK_START;
-                                break;
-                        case 1:
-                                trace_type = STACK_STOP;
-                                break;
-                        case 2:
-                                trace_type = STACK_RESET;
-                                break;
-                        default:
-                                usage(argv);
-                        }
+                case OPT_start:
+                        trace_type = STACK_START;
+                        break;
+                case OPT_stop:
+                        trace_type = STACK_STOP;
+                        break;
+                case OPT_reset:
+                        trace_type = STACK_RESET;
                         break;
                 default:
                         usage(argv);