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01: /*
02:  * UFC-crypt: ultra fast crypt(3) implementation
03:  *
04:  * Copyright (C) 1991,92,93,96,97,98,2000,2004 Free Software Foundation, Inc.
05:  *
06:  * The GNU C Library is free software; you can redistribute it and/or
07:  * modify it under the terms of the GNU Lesser General Public
08:  * License as published by the Free Software Foundation; either
09:  * 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 *__libc_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 *__libc_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 */
76: 

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