crypto/external/bsd/heimdal/dist/lib/roken/bswap.c

   1 /*      $NetBSD: bswap.c,v 1.1.1.1 2011/04/13 18:15:40 elric Exp $      */
   2
   3 /*
   4  * Copyright (c) 2001 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   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  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <config.h>
  37 #include <krb5/roken.h>
  38
  39 #ifndef HAVE_BSWAP32
  40
  41 ROKEN_LIB_FUNCTION unsigned int ROKEN_LIB_CALL
  42 bswap32 (unsigned int val)
  43 {
  44     return (val & 0xff) << 24 |
  45         (val & 0xff00) << 8 |
  46         (val & 0xff0000) >> 8 |
  47         (val & 0xff000000) >> 24;
  48 }
  49 #endif
  50
  51 #ifndef HAVE_BSWAP16
  52
  53 ROKEN_LIB_FUNCTION unsigned short ROKEN_LIB_CALL
  54 bswap16 (unsigned short val)
  55 {
  56     return (val & 0xff) << 8 |
  57         (val & 0xff00) >> 8;
  58 }
  59 #endif