1: /*
    2:  * UFC-crypt: ultra fast crypt(3) implementation
    3:  *
    4:  * Copyright (C) 1991,92,93,96,97,98,2000,2004 Free Software Foundation, Inc.
    5:  *
    6:  * The GNU C Library is free software; you can redistribute it and/or
    7:  * modify it under the terms of the GNU Lesser General Public
    8:  * License as published by the Free Software Foundation; either
    9:  * version 2.1 of the License, or (at your option) any later version.
   10:  *
   11:  * The GNU C 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:  * Lesser General Public License for more details.
   15:  *
   16:  * You should have received a copy of the GNU Lesser General Public
   17:  * License along with the GNU C Library; if not, write to the Free
   18:  * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   19:  * 02111-1307 USA.
   20:  *
   21:  * @(#)crypt.h  1.5 12/20/96
   22:  *
   23:  */
   24: 
   25: #ifndef _CRYPT_H
   26: #define _CRYPT_H        1
   27: 
   28: #include <features.h>
   29: 
   30: __BEGIN_DECLS
   31: 
   32: /* Encrypt at most 8 characters from KEY using salt to perturb DES.  */
   33: extern char *crypt (__const char *__key, __const char *__salt)
   34:      __THROW __nonnull ((1, 2));
   35: 
   36: /* Setup DES tables according KEY.  */
   37: extern void setkey (__const char *__key) __THROW __nonnull ((1));
   38: 
   39: /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
   40:    block in place.  */
   41: extern void encrypt (char *__block, int __edflag) __THROW __nonnull ((1));
   42: 
   43: #ifdef __USE_GNU
   44: /* Reentrant versions of the functions above.  The additional argument
   45:    points to a structure where the results are placed in.  */
   46: struct crypt_data
   47:   {
   48:     char keysched[16 * 8];
   49:     char sb0[32768];
   50:     char sb1[32768];
   51:     char sb2[32768];
   52:     char sb3[32768];
   53:     /* end-of-aligment-critical-data */
   54:     char crypt_3_buf[14];
   55:     char current_salt[2];
   56:     long int current_saltbits;
   57:     int  direction, initialized;
   58:   };
   59: 
   60: extern char *crypt_r (__const char *__key, __const char *__salt,
   61:                       struct crypt_data * __restrict __data)
   62:      __THROW __nonnull ((1, 2, 3));
   63: 
   64: extern void setkey_r (__const char *__key,
   65:                       struct crypt_data * __restrict __data)
   66:      __THROW __nonnull ((1, 2));
   67: 
   68: extern void encrypt_r (char *__block, int __edflag,
   69:                        struct crypt_data * __restrict __data)
   70:      __THROW __nonnull ((1, 3));
   71: #endif
   72: 
   73: __END_DECLS
   74: 
   75: #endif  /* crypt.h */