sunrpc/des_soft.c

   1 #if !defined(lint) && defined(SCCSIDS)
   2 static char sccsid[] = "@(#)des_soft.c  2.2 88/08/10 4.0 RPCSRC; from 1.13 88/02/08 SMI";
   3 #endif
   4 /*
   5  * Copyright (c) 2010, Oracle America, Inc.
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are
   8  * met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above
  13  *       copyright notice, this list of conditions and the following
  14  *       disclaimer in the documentation and/or other materials
  15  *       provided with the distribution.
  16  *     * Neither the name of the "Oracle America, Inc." nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  23  *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  24  *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  25  *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  27  *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28  *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  30  *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <rpc/des_crypt.h>
  35 #include <shlib-compat.h>
  36
  37 /*
  38  * Table giving odd parity in the low bit for ASCII characters
  39  */
  40 static const char partab[128] =
  41 {
  42   0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x07, 0x07,
  43   0x08, 0x08, 0x0b, 0x0b, 0x0d, 0x0d, 0x0e, 0x0e,
  44   0x10, 0x10, 0x13, 0x13, 0x15, 0x15, 0x16, 0x16,
  45   0x19, 0x19, 0x1a, 0x1a, 0x1c, 0x1c, 0x1f, 0x1f,
  46   0x20, 0x20, 0x23, 0x23, 0x25, 0x25, 0x26, 0x26,
  47   0x29, 0x29, 0x2a, 0x2a, 0x2c, 0x2c, 0x2f, 0x2f,
  48   0x31, 0x31, 0x32, 0x32, 0x34, 0x34, 0x37, 0x37,
  49   0x38, 0x38, 0x3b, 0x3b, 0x3d, 0x3d, 0x3e, 0x3e,
  50   0x40, 0x40, 0x43, 0x43, 0x45, 0x45, 0x46, 0x46,
  51   0x49, 0x49, 0x4a, 0x4a, 0x4c, 0x4c, 0x4f, 0x4f,
  52   0x51, 0x51, 0x52, 0x52, 0x54, 0x54, 0x57, 0x57,
  53   0x58, 0x58, 0x5b, 0x5b, 0x5d, 0x5d, 0x5e, 0x5e,
  54   0x61, 0x61, 0x62, 0x62, 0x64, 0x64, 0x67, 0x67,
  55   0x68, 0x68, 0x6b, 0x6b, 0x6d, 0x6d, 0x6e, 0x6e,
  56   0x70, 0x70, 0x73, 0x73, 0x75, 0x75, 0x76, 0x76,
  57   0x79, 0x79, 0x7a, 0x7a, 0x7c, 0x7c, 0x7f, 0x7f,
  58 };
  59
  60 /*
  61  * Add odd parity to low bit of 8 byte key
  62  */
  63 void
  64 des_setparity (char *p)
  65 {
  66   int i;
  67
  68   for (i = 0; i < 8; i++)
  69     {
  70       *p = partab[*p & 0x7f];
  71       p++;
  72     }
  73 }
  74 hidden_nolink (des_setparity, libc, GLIBC_2_1)