5007142 Add ntohll and htonll to sys/byteorder.h
6717509 Need to use bswap/bswapq for byte swap of 64-bit integer on x32/x64
PSARC 2008/474

@@ -18,16 +18,14 @@
  *
  * CDDL HEADER END
  */
 
 /*
- * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"
-
 #include <sys/isa_defs.h>
 #include <sys/types.h>
 
 
 #if defined(_LITTLE_ENDIAN) && !defined(__lint)

@@ -34,10 +32,29 @@
 
 #error  Use ISA-specific byteorder.s on a little-endian machine.
 
 #else   /* !_LITTLE_ENDIAN */
 
+/*
+ * htonll(), ntohll(), htonl(), ntohl(), htons(), ntohs()
+ * These functions just return the input parameter, as the host
+ * byte order is the same as the network byte order (big endian).
+ * On little endian machines, these functions byte swap.
+ */
+
+uint64_t
+htonll(uint64_t in)
+{
+        return (in);
+}
+
+uint64_t
+ntohll(uint64_t in)
+{
+        return (in);
+}
+
 uint32_t
 htonl(uint32_t in)
 {
         return (in);
 }