sysdeps/generic/crypt.h

   1 /*
   2  * UFC-crypt: ultra fast crypt(3) implementation
   3  *
   4  * Copyright (C) 1991, 1992, 1993, 1996, 1997 Free Software Foundation, Inc.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18  * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  *
  21  * @(#)crypt.h  1.3 16 Sep 1996
  22  *
  23  */
  24
  25 #ifndef _CRYPT_H
  26
  27 #define _CRYPT_H        1
  28 #include <features.h>
  29
  30 __BEGIN_DECLS
  31
  32 struct crypt_data
  33 {
  34   char keysched[(16 * 8) / sizeof (char)];
  35   char sb0[32768 / sizeof (char)];
  36   char sb1[32768 / sizeof (char)];
  37   char sb2[32768 / sizeof (char)];
  38   char sb3[32768 / sizeof (char)];
  39   /* end-of-alignment-critical-data */
  40   char crypt_3_buf[14];
  41   char current_salt[2];
  42   long current_saltbits;
  43   int  direction, initialized;
  44 };
  45
  46 /* Encrypt at most 8 characters from KEY using salt to perturb DES.  */
  47 extern char *crypt __P ((__const char *__key, __const char *__salt));
  48
  49
  50 /* Reentrant versions of the functions above.  The additional argument
  51    points to a structure where the results are placed in.  */
  52 extern char *crypt_r __P ((__const char *__key, __const char *__salt,
  53                            struct crypt_data *__data));
  54
  55 __END_DECLS
  56
  57 #endif  /* crypt.h */