Version v0.2.8 - Automatic version increment

otp.c

@@ -101,22 +101,24 @@ int interactive_mode(void) {
     
     while (1) {
         show_main_menu();
-        int choice = get_user_choice(1, 6);
+        char input[10];
+        if (fgets(input, sizeof(input), stdin)) {
+            char choice = toupper(input[0]);
             
             switch (choice) {
-            case 1:
+                case 'G':
                     handle_generate_menu();
                     break;
-            case 2:
+                case 'E':
                     handle_encrypt_menu();
                     break;
-            case 3:
+                case 'D':
                     handle_decrypt_menu();
                     break;
-            case 4:
+                case 'L':
                     list_available_pads();
                     break;
-            case 5: {
+                case 'S': {
                     printf("Enter pad checksum (or prefix): ");
                     char input[MAX_HASH_LENGTH];
                     if (fgets(input, sizeof(input), stdin)) {
@@ -129,9 +131,16 @@ int interactive_mode(void) {
                     }
                     break;
                 }
-            case 6:
+                case 'X':
                     printf("Goodbye!\n");
                     return 0;
+                default:
+                    printf("Invalid option. Please select G, E, D, L, S, or X.\n");
+                    continue;
+            }
+        } else {
+            printf("Error reading input. Please try again.\n");
+            continue;
         }
         printf("\n");
     }
@@ -176,13 +185,13 @@ int command_line_mode(int argc, char* argv[]) {
 
 void show_main_menu(void) {
     printf("=== Main Menu ===\n");
-    printf("1. Generate new pad\n");
-    printf("2. Encrypt message\n");
-    printf("3. Decrypt message\n");
-    printf("4. List available pads\n");
-    printf("5. Show pad information\n");
-    printf("6. Exit\n");
-    printf("\nSelect option (1-6): ");
+    printf("\033[4mG\033[0menerate new pad\n");
+    printf("\033[4mE\033[0mncrypt message\n");
+    printf("\033[4mD\033[0mecrypt message\n");
+    printf("\033[4mL\033[0mist available pads\n");
+    printf("\033[4mS\033[0mhow pad information\n");
+    printf("E\033[4mx\033[0mit\n");
+    printf("\nSelect option (G/E/D/L/S/X): ");
 }
 
 int handle_generate_menu(void) {