Class stat

src/client_handler/dialog_handler_gtk.cpp:214–214

    bool exists = false;

    struct stat sb;
    if (stat(file_path.c_str(), &sb) == 0 && S_ISREG(sb.st_mode)) {
      // Use the directory and name of the existing file.
      gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog), file_path.data());