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[glibc/history.git] / crypt / crypt.h
blobdcb89d813c9a4f8e6b2753bfdc49a3e1982f8280
1 /*
2 * UFC-crypt: ultra fast crypt(3) implementation
4 * Copyright (C) 1991,92,93,96,97,98,2000,2004 Free Software Foundation, Inc.
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.
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.
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.
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)
34 __THROW __nonnull ((1, 2));
36 /* Setup DES tables according KEY. */
37 extern void setkey (__const char *__key) __THROW __nonnull ((1));
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));
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
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;
60 extern char *crypt_r (__const char *__key, __const char *__salt,
61 struct crypt_data * __restrict __data)
62 __THROW __nonnull ((1, 2, 3));
64 extern void setkey_r (__const char *__key,
65 struct crypt_data * __restrict __data)
66 __THROW __nonnull ((1, 2));
68 extern void encrypt_r (char *__block, int __edflag,
69 struct crypt_data * __restrict __data)
70 __THROW __nonnull ((1, 3));
71 #endif
73 __END_DECLS
75 #endif /* crypt.h */