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/*
* crypt(3) implementation for uClibc
*
* The uClibc Library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* The GNU C 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the GNU C Library; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA.
*
*/
#ifndef _CRYPT_H
#define _CRYPT_H 1
#include <features.h>
__BEGIN_DECLS
/* Encrypt characters from KEY using salt to perturb the encryption method.
* If salt begins with "$1$", md5 hashing is used instead of DES. */
extern char *crypt (const char *__key, const char *__salt);
/* Setup DES tables according KEY. */
extern void setkey (const char *__key);
/* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
block in place. */
extern void encrypt (char *__block, int __edflag);
/* Reentrant versions of the functions above. The additional argument
points to a structure where the results are placed in. */
struct block {
unsigned char b_data[64];
};
struct ordering {
unsigned char o_data[64];
};
struct crypt_data
{
/* Stuff used by the des based routines */
struct block key;
const struct ordering *EP;
/* Stuff used by the md5 based routines */
char *p;
const char *sp,*ep;
};
extern char *crypt_r (const char *__key, const char *__salt,
struct crypt_data * __data);
extern void setkey_r (const char *__key,
struct crypt_data * __data);
extern void encrypt_r (char *__block, int __edflag,
struct crypt_data * __data);
__END_DECLS
#endif /* crypt.h */
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