1 /* 2 * UFC-crypt: ultra fast crypt(3) implementation 3 * 4 * Copyright (C) 1991-1993,1996-1998,2000,2004,2012 5 * Free Software Foundation, Inc. 6 * 7 * The GNU C Library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * The GNU C Library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with the GNU C Library; if not, see 19 * <http://www.gnu.org/licenses/>. 20 * 21 * @(#)crypt.h 1.5 12/20/96 22 * 23 */ 24 25 #ifndef _CRYPT_H 26 #define _CRYPT_H 1 27 28 #include <features.h> 29 30 __BEGIN_DECLS 31 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)); 35 36 /* Setup DES tables according KEY. */ 37 extern void setkey (const char *__key) __THROW __nonnull ((1)); 38 39 /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt 40 block in place. */ 41 extern void encrypt (char *__libc_block, int __edflag) __THROW __nonnull ((1)); 42 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 47 { 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; 58 }; 59 60 extern char *crypt_r (const char *__key, const char *__salt, 61 struct crypt_data * __restrict __data) 62 __THROW __nonnull ((1, 2, 3)); 63 64 extern void setkey_r (const char *__key, 65 struct crypt_data * __restrict __data) 66 __THROW __nonnull ((1, 2)); 67 68 extern void encrypt_r (char *__libc_block, int __edflag, 69 struct crypt_data * __restrict __data) 70 __THROW __nonnull ((1, 3)); 71 #endif 72 73 __END_DECLS 74 75 #endif /* crypt.h */ 76