1 | /*
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2 | * UFC-crypt: ultra fast crypt(3) implementation
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3 | *
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4 | * Copyright (C) 1991, 1992, 1993, 1996, 1997 Free Software Foundation, Inc.
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5 | *
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6 | * This library is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU Library General Public
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8 | * License as published by the Free Software Foundation; either
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9 | * version 2 of the License, or (at your option) any later version.
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10 | *
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11 | * This library is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | * Library General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU Library General Public
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17 | * License along with the GNU C Library; see the file COPYING.LIB. If not,
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18 | * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 | * Boston, MA 02111-1307, USA.
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20 | *
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21 | * @(#)crypt.h 1.5 12/20/96
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22 | *
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23 | */
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24 |
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25 | #ifndef _CRYPT_H
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26 | #define _CRYPT_H 1
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27 |
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28 | #ifdef __cplusplus
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29 | extern "C" {
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30 | #endif
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31 |
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32 |
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33 | #include "features.h"
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34 |
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35 | #ifndef __BEGIN_DECLS
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36 | #define __BEGIN_DECLS
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37 | #endif
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38 | #ifndef __P
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39 | #define __P(x) x
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40 | #endif
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41 | #ifndef __END_DECLS
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42 | #define __END_DECLS
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43 | #endif
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44 |
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45 | __BEGIN_DECLS
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46 |
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47 | /* Encrypt at most 8 characters from KEY using salt to perturb DES. */
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48 | extern char *crypt __P ((__const char *__key, __const char *__salt));
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49 |
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50 | /* Setup DES tables according KEY. */
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51 | extern void setkey __P ((__const char *__key));
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52 |
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53 | /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
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54 | block in place. */
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55 | extern void encrypt __P ((char *__block, int __edflag));
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56 |
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57 | struct crypt_data
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58 | {
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59 | char keysched[16 * 8];
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60 | char sb0[32768];
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61 | char sb1[32768];
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62 | char sb2[32768];
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63 | char sb3[32768];
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64 | /* end-of-aligment-critical-data */
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65 | char crypt_3_buf[14];
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66 | char current_salt[2];
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67 | long int current_saltbits;
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68 | int direction, initialized;
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69 | };
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70 |
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71 | #ifdef __USE_GNU
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72 | /* Reentrant versions of the functions above. The additional argument
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73 | points to a structure where the results are placed in. */
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74 |
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75 | extern char *__crypt_r __P ((__const char *__key, __const char *__salt,
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76 | struct crypt_data *__data));
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77 | extern char *crypt_r __P ((__const char *__key, __const char *__salt,
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78 | struct crypt_data *__data));
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79 |
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80 | extern void __setkey_r __P ((__const char *__key, struct crypt_data *__data));
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81 | extern void setkey_r __P ((__const char *__key, struct crypt_data *__data));
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82 |
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83 | extern void __encrypt_r __P ((char *__block, int __edflag,
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84 | struct crypt_data *__data));
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85 | extern void encrypt_r __P ((char *__block, int __edflag,
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86 | struct crypt_data *__data));
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87 | #endif
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88 |
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89 | __END_DECLS
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90 |
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91 | #ifdef __cplusplus
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92 | }
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93 | #endif
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94 |
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95 | #endif /* crypt.h */ |
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