1 files changed, 86 insertions, 0 deletions
diff --git a/libtransport/includes/hicn/transport/portability/endianess.h b/libtransport/includes/hicn/transport/portability/endianess.h
new file mode 100644
index 000000000..c18ac82cf
--- /dev/null
+++ b/libtransport/includes/hicn/transport/portability/endianess.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2022 Cisco and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <hicn/transport/errors/errors.h>
+
+namespace transport {
+namespace portability {
+
+#if (__BYTE_ORDER__) == (__ORDER_LITTLE_ENDIAN__)
+static constexpr const bool kIsBigEndian = false;
+static constexpr const bool kIsLittleEndian = true;
+#else
+static constexpr const bool kIsBigEndian = true;
+static constexpr const bool kIsLittleEndian = false;
+#endif
+
+template <typename T>
+inline T bswap(T value) {
+  throw errors::RuntimeException("Not implemented");
+}
+
+template <>
+inline int16_t bswap(int16_t value) {
+  return __builtin_bswap16(value);
+}
+
+template <>
+inline int32_t bswap(int32_t value) {
+  return __builtin_bswap32(value);
+}
+
+template <>
+inline int64_t bswap(int64_t value) {
+  return __builtin_bswap64(value);
+}
+
+template <>
+inline uint16_t bswap(uint16_t value) {
+  return __builtin_bswap16(value);
+}
+
+template <>
+inline uint32_t bswap(uint32_t value) {
+  return __builtin_bswap32(value);
+}
+
+template <>
+inline uint64_t bswap(uint64_t value) {
+  return __builtin_bswap64(value);
+}
+
+template <typename T>
+inline T host_to_net(T value) {
+  if constexpr (kIsLittleEndian) {
+    return bswap(value);
+  }
+
+  return value;
+}
+
+template <typename T>
+inline T net_to_host(T value) {
+  if constexpr (kIsLittleEndian) {
+    return bswap(value);
+  }
+
+  return value;
+}
+
+}  // namespace portability
+}  // namespace transport
+\ No newline at end of file