Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2001 Kungliga Tekniska Högskolan
       3             :  * (Royal Institute of Technology, Stockholm, Sweden).
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions
       8             :  * are met:
       9             :  *
      10             :  * 1. Redistributions of source code must retain the above copyright
      11             :  *    notice, this list of conditions and the following disclaimer.
      12             :  *
      13             :  * 2. Redistributions in binary form must reproduce the above copyright
      14             :  *    notice, this list of conditions and the following disclaimer in the
      15             :  *    documentation and/or other materials provided with the distribution.
      16             :  *
      17             :  * 3. Neither the name of the Institute nor the names of its contributors
      18             :  *    may be used to endorse or promote products derived from this software
      19             :  *    without specific prior written permission.
      20             :  *
      21             :  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
      22             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
      25             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31             :  * SUCH DAMAGE.
      32             :  */
      33             : 
      34             : #include <config.h>
      35             : #include "roken.h"
      36             : 
      37             : #ifndef HAVE_BSWAP64
      38             : 
      39             : ROKEN_LIB_FUNCTION uint64_t ROKEN_LIB_CALL
      40     1264612 : bswap64 (uint64_t val)
      41             : {
      42             :     return
      43     2529224 :         (val & 0xffULL) << 56 |
      44     2529224 :         (val & 0xff00ULL) << 40 |
      45     2529224 :         (val & 0xff0000ULL) << 24 |
      46     2529224 :         (val & 0xff000000ULL) << 8 |
      47     2529224 :         (val & 0xff00000000ULL) >> 8 |
      48     2529224 :         (val & 0xff0000000000ULL) >> 24 |
      49     2529224 :         (val & 0xff000000000000ULL) >> 40 |
      50     1264612 :         (val & 0xff00000000000000ULL) >> 56 ;
      51             : }
      52             : #endif
      53             : 
      54             : #ifndef HAVE_BSWAP32
      55             : 
      56             : ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL
      57     3537325 : bswap32 (unsigned int val)
      58             : {
      59     7074650 :     return (val & 0xff) << 24 |
      60     7074650 :         (val & 0xff00) << 8 |
      61     7074650 :         (val & 0xff0000) >> 8 |
      62     3537325 :         (val & 0xff000000) >> 24;
      63             : }
      64             : #endif
      65             : 
      66             : #ifndef HAVE_BSWAP16
      67             : 
      68             : ROKEN_LIB_FUNCTION unsigned short ROKEN_LIB_CALL
      69      794916 : bswap16 (unsigned short val)
      70             : {
      71     1589832 :     return (val & 0xff) << 8 |
      72      794916 :         (val & 0xff00) >> 8;
      73             : }
      74             : #endif