1 files changed, 75 insertions, 0 deletions
diff --git a/tests/fuzz/proto_to_luks2.cc b/tests/fuzz/proto_to_luks2.cc
new file mode 100644
index 0000000..4a27cad
--- /dev/null
+++ b/tests/fuzz/proto_to_luks2.cc
@@ -0,0 +1,75 @@
+/*
+ * cryptsetup LUKS2 protobuf to image converter
+ *
+ * Copyright (C) 2022-2023 Daniel Zatovic <daniel.zatovic@gmail.com>
+ * Copyright (C) 2022-2023 Red Hat, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <iostream>
+#include <string>
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <google/protobuf/text_format.h>
+#include <google/protobuf/io/zero_copy_stream_impl.h>
+
+#include "proto_to_luks2_converter.h"
+
+using namespace LUKS2_proto;
+
+int main(int argc, char *argv[]) {
+  LUKS2_both_headers headers;
+  LUKS2ProtoConverter converter;
+  int fd;
+
+  std::string out_img_name;
+
+  if (argc != 2) {
+    std::cerr << "Usage: " << argv[0] << " <LUKS2 proto>\n";
+    return EXIT_FAILURE;
+  }
+
+  fd = open(argv[1], O_RDONLY);
+  if (fd < 0) {
+    std::cerr << "Failed to open " << argv[1] << std::endl;
+    return EXIT_FAILURE;
+  }
+
+  google::protobuf::io::FileInputStream fileInput(fd);
+
+  if (!google::protobuf::TextFormat::Parse(&fileInput, &headers)) {
+    std::cerr << "Failed to parse protobuf " << argv[1] << std::endl;
+    close(fd);
+    return EXIT_FAILURE;
+  }
+  close(fd);
+
+  out_img_name = argv[1];
+  out_img_name += ".img";
+
+  fd = open(out_img_name.c_str(), O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC|O_TRUNC, 0644);
+  if (fd < 0) {
+    std::cerr << "Failed to open output file " << out_img_name << std::endl;
+    return EXIT_FAILURE;
+  }
+  converter.set_write_headers_only(false);
+  converter.convert(headers, fd);
+
+  close(fd);
+  return EXIT_SUCCESS;
+}