usr/src/lib/gss_mechs/mech_krb5/crypto/keyed_cksum.c

   1
   2 /*
   3  * Copyright (C) 1998 by the FundsXpress, INC.
   4  *
   5  * All rights reserved.
   6  *
   7  * Export of this software from the United States of America may require
   8  * a specific license from the United States Government.  It is the
   9  * responsibility of any person or organization contemplating export to
  10  * obtain such a license before exporting.
  11  *
  12  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
  13  * distribute this software and its documentation for any purpose and
  14  * without fee is hereby granted, provided that the above copyright
  15  * notice appear in all copies and that both that copyright notice and
  16  * this permission notice appear in supporting documentation, and that
  17  * the name of FundsXpress. not be used in advertising or publicity pertaining
  18  * to distribution of the software without specific, written prior
  19  * permission.  FundsXpress makes no representations about the suitability of
  20  * this software for any purpose.  It is provided "as is" without express
  21  * or implied warranty.
  22  *
  23  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  25  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  26  */
  27
  28 #include "k5-int.h"
  29 #include "cksumtypes.h"
  30
  31 krb5_boolean KRB5_CALLCONV
  32 krb5_c_is_keyed_cksum(krb5_cksumtype ctype)
  33 {
  34     int i;
  35
  36     for (i=0; i<krb5_cksumtypes_length; i++) {
  37         if (krb5_cksumtypes_list[i].ctype == ctype) {
  38             if (krb5_cksumtypes_list[i].keyhash ||
  39                 (krb5_cksumtypes_list[i].flags &
  40                  KRB5_CKSUMFLAG_DERIVE))
  41                 return(1);
  42             else
  43                 return(0);
  44         }
  45     }
  46
  47     /* ick, but it's better than coredumping, which is what the
  48        old code would have done */
  49     return 0;   /* error case */
  50 }
  51
  52 krb5_boolean KRB5_CALLCONV
  53 is_keyed_cksum(krb5_cksumtype ctype)
  54 {
  55     return krb5_c_is_keyed_cksum (ctype);
  56 }