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/*
* UFC-crypt: ultra fast crypt(3) implementation
*
* Copyright (C) 1991, 92, 93, 96, 97, 98, 2000 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with the GNU C Library; see the file COPYING.LIB. If not,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* @(#)crypt.h 1.5 12/20/96
*
*/
#ifndef _CRYPT_H
#define _CRYPT_H 1
#include <features.h>
__BEGIN_DECLS
/* Encrypt at most 8 characters from KEY using salt to perturb DES. */
extern char *crypt (__const char *__key, __const char *__salt) __THROW;
/* Setup DES tables according KEY. */
extern void setkey (__const char *__key) __THROW;
/* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
block in place. */
extern void encrypt (char *__block, int __edflag) __THROW;
#ifdef __USE_GNU
/* Reentrant versions of the functions above. The additional argument
points to a structure where the results are placed in. */
struct crypt_data
{
char keysched[16 * 8];
char sb0[32768];
char sb1[32768];
char sb2[32768];
char sb3[32768];
/* end-of-aligment-critical-data */
char crypt_3_buf[14];
char current_salt[2];
long int current_saltbits;
int direction, initialized;
};
extern char *crypt_r (__const char *__key, __const char *__salt,
struct crypt_data * __restrict __data) __THROW;
extern void setkey_r (__const char *__key,
struct crypt_data * __restrict __data) __THROW;
extern void encrypt_r (char *__block, int __edflag,
struct crypt_data * __restrict __data) __THROW;
#endif
__END_DECLS
#endif /* crypt.h */
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