sysdeps/generic/crypt.h

   1 /*
   2  * UFC-crypt: ultra fast crypt(3) implementation
   3  *
   4  * Copyright (C) 1991, 1992, 1993, 1996 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 this library; if not, write to the Free
  18  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  *
  20  * @(#)crypt.h  1.3 16 Sep 1996
  21  *
  22  */
  23
  24 #ifndef _CRYPT_H
  25
  26 #define _CRYPT_H        1
  27 #include <features.h>
  28
  29 __BEGIN_DECLS
  30
  31 struct crypt_data
  32 {
  33   char keysched[(16 * 8) / sizeof (char)];
  34   char sb0[32768 / sizeof (char)];
  35   char sb1[32768 / sizeof (char)];
  36   char sb2[32768 / sizeof (char)];
  37   char sb3[32768 / sizeof (char)];
  38   /* end-of-aligment-critical-data */
  39   char crypt_3_buf[14];
  40   char current_salt[2];
  41   long current_saltbits;
  42   int  direction, initialized;
  43 };
  44
  45 /* Encrypt at most 8 characters from KEY using salt to perturb DES.  */
  46 extern char *crypt __P ((__const char *__key, __const char *__salt));
  47
  48
  49 #ifdef __USE_REENTRANT
  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 #endif /* reentrant */
  55
  56 __END_DECLS
  57
  58 #endif  /* crypt.h */