crypt.h
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上传日期:2009-04-28
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- /*
- * UFC-crypt: ultra fast crypt(3) implementation
- *
- * Copyright (C) 1991,92,93,96,97,98,2000,2004 Free Software Foundation, Inc.
- *
- * The GNU C 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.
- *
- * @(#)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 __nonnull ((1, 2));
- /* Setup DES tables according KEY. */
- extern void setkey (__const char *__key) __THROW __nonnull ((1));
- /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
- block in place. */
- extern void encrypt (char *__block, int __edflag) __THROW __nonnull ((1));
- #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 __nonnull ((1, 2, 3));
- extern void setkey_r (__const char *__key,
- struct crypt_data * __restrict __data)
- __THROW __nonnull ((1, 2));
- extern void encrypt_r (char *__block, int __edflag,
- struct crypt_data * __restrict __data)
- __THROW __nonnull ((1, 3));
- #endif
- __END_DECLS
- #endif /* crypt.h */