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

*** 1,12 ****
  /*
   * CDDL HEADER START
   *
   * The contents of this file are subject to the terms of the
!  * Common Development and Distribution License, Version 1.0 only
!  * (the "License").  You may not use this file except in compliance
!  * with the License.
   *
   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   * or http://www.opensolaris.org/os/licensing.
   * See the License for the specific language governing permissions
   * and limitations under the License.
--- 1,11 ----
  /*
   * CDDL HEADER START
   *
   * The contents of this file are subject to the terms of the
!  * Common Development and Distribution License (the "License").
!  * You may not use this file except in compliance with the License.
   *
   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   * or http://www.opensolaris.org/os/licensing.
   * See the License for the specific language governing permissions
   * and limitations under the License.
*** 18,37 ****
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
!  * Copyright 1991-2000, 2003 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/types.h>
  #include <netinet/in.h>
  
  #ifdef  _LITTLE_ENDIAN
  uint32_t
  htonl(uint32_t in)
  {
          uint32_t        i;
  
--- 17,61 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
!  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #include <sys/types.h>
  #include <netinet/in.h>
  
+ /*
+  * htonll(), ntohll(), htonl(), ntohl(), htons(), ntohs()
+  *
+  * On little endian machines these functions reverse the byte order of the
+  * input parameter and returns the result.  This is to convert the byte order
+  * from host byte order (little endian) to network byte order (big endian),
+  * or vice versa.
+  *
+  * On big endian machines these functions just return the input parameter,
+  * as the host byte order is the same as the network byte order (big endian).
+  */
+ 
+ 
  #ifdef  _LITTLE_ENDIAN
+ uint64_t
+ htonll(uint64_t in)
+ {
+         return ((uint64_t)htonl((in >> 32) & 0xffffffff) |
+             ((uint64_t)htonl(in & 0xffffffff) << 32));
+ }
+ 
+ uint64_t
+ ntohll(uint64_t in)
+ {
+         return ((uint64_t)ntohl((in >> 32) & 0xffffffff) |
+             ((uint64_t)ntohl(in & 0xffffffff) << 32));
+ }
+ 
  uint32_t
  htonl(uint32_t in)
  {
          uint32_t        i;
  
*** 66,76 ****
--- 90,111 ----
  }
  
  #else   /* _LITTLE_ENDIAN */
  
  #if defined(lint)
+ uint64_t
+ htonll(uint64_t in)
+ {
+         return (in);
+ }
  
+ uint64_t
+ ntohll(uint64_t in)
+ {
+         return (in);
+ }
+ 
  uint32_t
  htonl(uint32_t in)
  {
          return (in);
  }