From 7a4e32f453a5368f648b825c0e1c0cf6c1c1012c Mon Sep 17 00:00:00 2001
From: Ralf Corsepius <ralf.corsepius@rtems.org>
Date: Wed, 9 May 2007 16:27:09 +0000
Subject: [PATCH] =?UTF-8?q?2007-05-09=09Ralf=20Cors=C3=A9pius=20<ralf.cors?=
 =?UTF-8?q?epius@rtems.org>?=
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	* include/rtems/endian.h: New (Copied from
	  libnetworking/machine/endian.h).
---
 cpukit/ChangeLog              |  5 ++
 cpukit/include/rtems/endian.h | 92 +++++++++++++++++++++++++++++++++++
 2 files changed, 97 insertions(+)
 create mode 100644 cpukit/include/rtems/endian.h

diff --git a/cpukit/ChangeLog b/cpukit/ChangeLog
index a937c05a00..bc0c1d5e2d 100644
--- a/cpukit/ChangeLog
+++ b/cpukit/ChangeLog
@@ -1,3 +1,8 @@
+2007-05-09	Ralf Corsépius <ralf.corsepius@rtems.org>
+
+	* include/rtems/endian.h: New (Copied from
+	  libnetworking/machine/endian.h).
+
 2007-05-09	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* libcsupport/src/readdir.c, libnetworking/net/slcompress.c,
diff --git a/cpukit/include/rtems/endian.h b/cpukit/include/rtems/endian.h
new file mode 100644
index 0000000000..678b8bad3b
--- /dev/null
+++ b/cpukit/include/rtems/endian.h
@@ -0,0 +1,92 @@
+/*
+ *  $Id$
+ */
+
+#ifndef _RTEMS_ENDIAN_H
+#define _RTEMS_ENDIAN_H
+
+#include <rtems.h>
+
+/*
+ * BSD-style endian declaration
+ */
+#define BIG_ENDIAN	4321
+#define LITTLE_ENDIAN	1234
+
+#ifndef BYTE_ORDER
+#if CPU_BIG_ENDIAN
+# define BYTE_ORDER BIG_ENDIAN
+#elif CPU_LITTLE_ENDIAN
+# define BYTE_ORDER LITTLE_ENDIAN
+#else
+# error "Can't decide which end is which!"
+#endif
+#endif
+
+#if ( CPU_BIG_ENDIAN == TRUE )
+
+/*
+ *  Very simply on big endian CPUs
+ */
+
+static inline uint32_t ntohl( uint32_t _x )
+{
+  return _x;
+}
+
+static inline uint16_t ntohs( uint16_t _x )
+{
+  return _x;
+}
+
+static inline uint32_t htonl( uint32_t _x )
+{
+  return _x;
+}
+
+static inline uint16_t htons( uint16_t _x )
+{
+  return _x;
+}
+
+#define NTOHS(x)
+#define HTONS(x)
+#define NTOHL(x)
+#define HTONL(x)
+
+#elif ( CPU_LITTLE_ENDIAN == TRUE )
+
+/*
+ *  A little more complicated on little endian CPUs
+ */
+
+static inline uint32_t ntohl( uint32_t _x )
+{
+  return CPU_swap_u32(_x);
+}
+
+static inline uint16_t ntohs( uint16_t _x )
+{
+  return CPU_swap_u16(_x);
+}
+
+static inline uint32_t htonl( uint32_t _x )
+{
+  return CPU_swap_u32(_x);
+}
+
+static inline uint16_t htons( uint16_t _x )
+{
+  return CPU_swap_u16(_x);
+}
+
+#define NTOHS(x) (x) = ntohs(x)
+#define HTONS(x) (x) = htons(x)
+#define NTOHL(x) (x) = ntohl(x)
+#define HTONL(x) (x) = htonl(x)
+
+#else
+#error "Unknown endian-ness for this cpu"
+#endif
+
+#endif /* _RTEMS_ENDIAN_H */