Update.
[glibc.git] / crypt / crypt.h
blob7018cb16ceabf06953532eae0360049a6b373b12
1 /*
2 * UFC-crypt: ultra fast crypt(3) implementation
4 * Copyright (C) 1991, 92, 93, 96, 97, 98, 2000 Free Software Foundation, Inc.
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.
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.
16 * You should have received a copy of the GNU Library General Public
17 * License along with the GNU C Library; see the file COPYING.LIB. If not,
18 * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
21 * @(#)crypt.h 1.5 12/20/96
25 #ifndef _CRYPT_H
26 #define _CRYPT_H 1
28 #include <features.h>
30 __BEGIN_DECLS
32 /* Encrypt at most 8 characters from KEY using salt to perturb DES. */
33 extern char *crypt (__const char *__key, __const char *__salt);
35 /* Setup DES tables according KEY. */
36 extern void setkey (__const char *__key);
38 /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
39 block in place. */
40 extern void encrypt (char *__block, int __edflag);
42 #ifdef __USE_GNU
43 /* Reentrant versions of the functions above. The additional argument
44 points to a structure where the results are placed in. */
45 struct crypt_data
47 char keysched[16 * 8];
48 char sb0[32768];
49 char sb1[32768];
50 char sb2[32768];
51 char sb3[32768];
52 /* end-of-aligment-critical-data */
53 char crypt_3_buf[14];
54 char current_salt[2];
55 long int current_saltbits;
56 int direction, initialized;
59 extern char *crypt_r (__const char *__key, __const char *__salt,
60 struct crypt_data * __restrict __data);
62 extern void setkey_r (__const char *__key,
63 struct crypt_data * __restrict __data);
65 extern void encrypt_r (char *__block, int __edflag,
66 struct crypt_data * __restrict __data);
67 #endif
69 __END_DECLS
71 #endif /* crypt.h */