Version v0.2.67 - Enhanced UI - added Q for quit and improved pad generation flow

otp.c

@@ -158,6 +158,7 @@ int interactive_mode(void) {
                 handle_pads_menu();
                 break;
             case 'X':
+            case 'Q':
                 printf("Goodbye!\n");
                 return 0;
             default:
@@ -1127,12 +1128,41 @@ int generate_pad_with_entropy(uint64_t size_bytes, int display_progress, int use
     // Get final paths in pads directory
     get_pad_path(chksum_hex, pad_path, state_path);
     
+    // Try rename first (works for same filesystem)
     if (rename(temp_filename, pad_path) != 0) {
-        printf("Error: Cannot move pad file to pads directory\n");
+        // If rename fails, try copy and delete (works across filesystems)
+        FILE* temp_file = fopen(temp_filename, "rb");
+        FILE* dest_file = fopen(pad_path, "wb");
+        
+        if (!temp_file || !dest_file) {
+            printf("Error: Cannot copy pad file to pads directory\n");
+            if (temp_file) fclose(temp_file);
+            if (dest_file) fclose(dest_file);
             unlink(temp_filename);
             return 1;
         }
         
+        // Copy file in chunks
+        unsigned char copy_buffer[64 * 1024];
+        size_t bytes_read;
+        while ((bytes_read = fread(copy_buffer, 1, sizeof(copy_buffer), temp_file)) > 0) {
+            if (fwrite(copy_buffer, 1, bytes_read, dest_file) != bytes_read) {
+                printf("Error: Failed to copy pad file to pads directory\n");
+                fclose(temp_file);
+                fclose(dest_file);
+                unlink(temp_filename);
+                unlink(pad_path);
+                return 1;
+            }
+        }
+        
+        fclose(temp_file);
+        fclose(dest_file);
+        
+        // Remove temporary file after successful copy
+        unlink(temp_filename);
+    }
+    
     // Set pad file to read-only
     if (chmod(pad_path, S_IRUSR) != 0) {
         printf("Warning: Cannot set pad file to read-only\n");
@@ -3018,7 +3048,12 @@ int handle_pads_menu(void) {
         if (fgets(input, sizeof(input), stdin)) {
         char choice = toupper(input[0]);
         if (choice == 'G') {
-                return handle_generate_menu();
+            int result = handle_generate_menu();
+            if (result == 0) {
+                // After successful pad generation, return to pads menu
+                return handle_pads_menu();
+            }
+            return result;
         }
         }
         return 0;
@@ -3088,7 +3123,12 @@ int handle_pads_menu(void) {
     
     // Handle actions first
     if (toupper(input[0]) == 'G') {
-        return handle_generate_menu();
+        int result = handle_generate_menu();
+        if (result == 0) {
+            // After successful pad generation, return to pads menu
+            return handle_pads_menu();
+        }
+        return result;
     } else if (toupper(input[0]) == 'B') {
         return 0; // Back to main menu
     }