reactos/dll/win32/libtirpc/src/des_soft.c

   1 //#include <sys/cdefs.h>
   2
   3 /*
   4  * Copyright (c) 2009, Sun Microsystems, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are met:
   9  * - Redistributions of source code must retain the above copyright notice,
  10  *   this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright notice,
  12  *   this list of conditions and the following disclaimer in the documentation
  13  *   and/or other materials provided with the distribution.
  14  * - Neither the name of Sun Microsystems, Inc. nor the names of its
  15  *   contributors may be used to endorse or promote products derived
  16  *   from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30 /*
  31  * Table giving odd parity in the low bit for ASCII characters
  32  */
  33 static char partab[128] = {
  34         0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x07, 0x07,
  35         0x08, 0x08, 0x0b, 0x0b, 0x0d, 0x0d, 0x0e, 0x0e,
  36         0x10, 0x10, 0x13, 0x13, 0x15, 0x15, 0x16, 0x16,
  37         0x19, 0x19, 0x1a, 0x1a, 0x1c, 0x1c, 0x1f, 0x1f,
  38         0x20, 0x20, 0x23, 0x23, 0x25, 0x25, 0x26, 0x26,
  39         0x29, 0x29, 0x2a, 0x2a, 0x2c, 0x2c, 0x2f, 0x2f,
  40         0x31, 0x31, 0x32, 0x32, 0x34, 0x34, 0x37, 0x37,
  41         0x38, 0x38, 0x3b, 0x3b, 0x3d, 0x3d, 0x3e, 0x3e,
  42         0x40, 0x40, 0x43, 0x43, 0x45, 0x45, 0x46, 0x46,
  43         0x49, 0x49, 0x4a, 0x4a, 0x4c, 0x4c, 0x4f, 0x4f,
  44         0x51, 0x51, 0x52, 0x52, 0x54, 0x54, 0x57, 0x57,
  45         0x58, 0x58, 0x5b, 0x5b, 0x5d, 0x5d, 0x5e, 0x5e,
  46         0x61, 0x61, 0x62, 0x62, 0x64, 0x64, 0x67, 0x67,
  47         0x68, 0x68, 0x6b, 0x6b, 0x6d, 0x6d, 0x6e, 0x6e,
  48         0x70, 0x70, 0x73, 0x73, 0x75, 0x75, 0x76, 0x76,
  49         0x79, 0x79, 0x7a, 0x7a, 0x7c, 0x7c, 0x7f, 0x7f,
  50 };
  51
  52 /*
  53  * Add odd parity to low bit of 8 byte key
  54  */
  55 void
  56 des_setparity(p)
  57         char *p;
  58 {
  59         int i;
  60
  61         for (i = 0; i < 8; i++) {
  62                 *p = partab[*p & 0x7f];
  63                 p++;
  64         }
  65 }