Line data    Source code

       1             : /**
       2             :    byteorder.c
       3             : 
       4             : 
       5             :    Copyright (C) 2007, Network Resonance, Inc.
       6             :    All Rights Reserved
       7             : 
       8             :    Redistribution and use in source and binary forms, with or without
       9             :    modification, are permitted provided that the following conditions
      10             :    are met:
      11             : 
      12             :    1. Redistributions of source code must retain the above copyright
      13             :       notice, this list of conditions and the following disclaimer.
      14             :    2. Redistributions in binary form must reproduce the above copyright
      15             :       notice, this list of conditions and the following disclaimer in the
      16             :       documentation and/or other materials provided with the distribution.
      17             :    3. Neither the name of Network Resonance, Inc. nor the name of any
      18             :       contributors to this software may be used to endorse or promote
      19             :       products derived from this software without specific prior written
      20             :       permission.
      21             : 
      22             :    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
      23             :    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      24             :    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      25             :    ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
      26             :    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
      27             :    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
      28             :    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
      29             :    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
      30             :    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      31             :    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
      32             :    POSSIBILITY OF SUCH DAMAGE.
      33             : 
      34             : 
      35             :    briank@networkresonance.com  Wed May 16 16:46:00 PDT 2007
      36             :  */
      37             : 
      38             : 
      39             : static char *RCSSTRING __UNUSED__ ="$Id: byteorder.c,v 1.2 2007/06/26 22:37:55 adamcain Exp $";
      40             : 
      41             : #include "nr_common.h"
      42             : #ifndef WIN32
      43             : #include <arpa/inet.h>
      44             : #endif
      45             : #include "r_types.h"
      46             : #include "byteorder.h"
      47             : 
      48             : #define IS_BIG_ENDIAN (htonl(0x1) == 0x1)
      49             : 
      50             : #define BYTE(n,i)   (((UCHAR*)&(n))[(i)])
      51             : #define SWAP(n,x,y) tmp=BYTE((n),(x)), \
      52             :                     BYTE((n),(x))=BYTE((n),(y)), \
      53             :                     BYTE((n),(y))=tmp
      54             : 
      55             : UINT8
      56           0 : nr_htonll(UINT8 hostlonglong)
      57             : {
      58           0 :     UINT8 netlonglong = hostlonglong;
      59             :     UCHAR tmp;
      60             : 
      61           0 :     if (!IS_BIG_ENDIAN) {
      62           0 :         SWAP(netlonglong, 0, 7);
      63           0 :         SWAP(netlonglong, 1, 6);
      64           0 :         SWAP(netlonglong, 2, 5);
      65           0 :         SWAP(netlonglong, 3, 4);
      66             :     }
      67             : 
      68           0 :     return netlonglong;
      69             : }
      70             : 
      71             : UINT8
      72           0 : nr_ntohll(UINT8 netlonglong)
      73             : {
      74           0 :     return nr_htonll(netlonglong);
      75             : }
      76             :