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-rw-r--r--string/endian.h38
1 files changed, 37 insertions, 1 deletions
diff --git a/string/endian.h b/string/endian.h
index 2f7bce100b..430fb3a5c4 100644
--- a/string/endian.h
+++ b/string/endian.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992, 1996, 1997, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1992, 1996, 1997, 2000, 2008 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -55,4 +55,40 @@
 # define __LONG_LONG_PAIR(HI, LO) HI, LO
 #endif
 
+
+/* Conversion interfaces.  */
+#include <bits/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	/* endian.h */