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