1 files changed, 90 insertions, 0 deletions
diff --git a/StdLib/LibC/Main/HtoNtoH.c b/StdLib/LibC/Main/HtoNtoH.c
new file mode 100644
index 0000000000..c501874b84
--- /dev/null
+++ b/StdLib/LibC/Main/HtoNtoH.c
@@ -0,0 +1,90 @@
+/** @File
+    Routines for translating between host and network byte-order.
+
+    Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+    This program and the accompanying materials are licensed and made available
+    under the terms and conditions of the BSD License that accompanies this
+    distribution.  The full text of the license may be found at
+    http://opensource.org/licenses/bsd-license.
+
+    THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+    WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+#include  <Library/BaseLib.h>
+#include  <LibConfig.h>
+#include  <sys/endian.h>
+
+// Undefine macro versions of the functions to be defined below.
+#undef  htonl
+#undef  htons
+#undef  ntohl
+#undef  ntohs
+
+/** 32-bit Host to Network byte order conversion.
+
+  @param[in]  Datum   The 32-bit value to be converted.
+  @return     Datum, converted to network byte order.
+**/
+uint32_t
+htonl(
+  IN  uint32_t Datum
+  )
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+  return SwapBytes32(Datum);
+#else
+  return Datum;
+#endif
+}
+
+/** 16-bit Host to Network byte order conversion.
+
+  @param[in]  Datum   The 16-bit value to be converted.
+  @return     Datum, converted to network byte order.
+**/
+uint16_t
+htons(
+  IN  uint16_t Datum
+  )
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+  return SwapBytes16(Datum);
+#else
+  return Datum;
+#endif
+}
+
+/** 32-bit Network to Host byte order conversion.
+
+  @param[in]  Datum   The 16-bit value to be converted.
+  @return     Datum, converted to host byte order.
+**/
+uint32_t
+ntohl(
+  IN  uint32_t Datum
+  )
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+  return SwapBytes32(Datum);
+#else
+  return Datum;
+#endif
+}
+
+/** 16-bit Network to Host byte order conversion.
+
+  @param[in]  Datum   The 16-bit value to be converted.
+  @return     Datum, converted to host byte order.
+**/
+uint16_t
+ntohs(
+  IN uint16_t Datum
+  )
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+  return SwapBytes16(Datum);
+#else
+  return Datum;
+#endif
+}