[git commit master 1/1] endian.h: add BSD convertions between big/little-endian byte order

[Vladimir Zapolskiy]

commit: http://git.uclibc.org/uClibc/commit/?id=c6d6237819037168a6923ac080e348e54615422c
branch: http://git.uclibc.org/uClibc/commit/?id=refs/heads/master

This patch adds support for convertion of values between host and
big-/little-endian byte order.

Signed-off-by: Vladimir Zapolskiy <vzapolskiy at gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop at gmail.com>
---
 include/endian.h |   38 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)

diff --git a/include/endian.h b/include/endian.h
index 2f7bce1..0ba7384 100644
--- a/include/endian.h
+++ b/include/endian.h
@@ -55,4 +55,42 @@
 # define __LONG_LONG_PAIR(HI, LO) HI, LO
 #endif
 
+
+#ifdef __USE_BSD
+/* Conversion interfaces.  */
+# include <byteswap.h>
+
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define htobe16(x) __bswap_16 (x)
+#  define htole16(x) (x)
+#  define be16toh(x) __bswap_16 (x)
+#  define le16toh(x) (x)
+
+#  define htobe32(x) __bswap_32 (x)
+#  define htole32(x) (x)
+#  define be32toh(x) __bswap_32 (x)
+#  define le32toh(x) (x)
+
+#  define htobe64(x) __bswap_64 (x)
+#  define htole64(x) (x)
+#  define be64toh(x) __bswap_64 (x)
+#  define le64toh(x) (x)
+# else
+#  define htobe16(x) (x)
+#  define htole16(x) __bswap_16 (x)
+#  define be16toh(x) (x)
+#  define le16toh(x) __bswap_16 (x)
+
+#  define htobe32(x) (x)
+#  define htole32(x) __bswap_32 (x)
+#  define be32toh(x) (x)
+#  define le32toh(x) __bswap_32 (x)
+
+#  define htobe64(x) (x)
+#  define htole64(x) __bswap_64 (x)
+#  define be64toh(x) (x)
+#  define le64toh(x) __bswap_64 (x)
+# endif
+#endif
+
 #endif	/* endian.h */
-- 
1.7.1