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Diffstat (limited to 'lib/libcrypt/crypt.h')
| -rw-r--r-- | lib/libcrypt/crypt.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/lib/libcrypt/crypt.h b/lib/libcrypt/crypt.h new file mode 100644 index 0000000..3b43407 --- /dev/null +++ b/lib/libcrypt/crypt.h @@ -0,0 +1,122 @@ +/* + * Copyright (C) 1996 + * Brandon Gillespie. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY Brandon Gillespie AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL Brandon Gillespie OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +/* +// -------------------------------------------------------------------------- +// to add a new algorithm, have it export the function 'crypt_<algo>' +// (where <algo> is whichever algorithm, such as 'des' or 'md5), with +// the arguments ordered as follows, and the return value 'char *': +// +// register const unsigned char * -- word to encrypt +// const unsigned int -- length of word to encrypt +// register const unsigned char * -- salt to encrypt with +// const unsigned int -- salt length +// char * -- output buffer, _CRYPT_OUTPUT_SIZE max +// char * -- identifier token +// +// such as: +// +// char * +// crypt_des(register const unsigned char *pw, +// const unsigned int pl, +// register const unsigned char *sp, +// const unsigned int sl, +// char * passwd, +// char * token); +// +// Prototype the function below, include libraries here. +// You can use the macro CRYPT_HOOK() to make it easy. +*/ + +#include <md5.h> +#include <pwd.h> +#include "shs.h" + +#define _DES_CRYPT 0 +#define _MD5_CRYPT 1 +#define _MD5_CRYPT_OLD 3 +#define _BF_CRYPT 2 +#define _BF_CRYPT_OpenBSD 4 +#define _SHS_CRYPT 5 + +/* +// -------------------------------------------------------------------------- +// Prototypes +*/ + +#define _CRYPT_HOOK(_type_) \ + char * crypt_ ## _type_ ( \ + register const unsigned char * pw, \ + const unsigned int pl, \ + register const unsigned char * sw, \ + const unsigned int sp, \ + char * passwd, \ + char * token) + +#ifdef DES_CRYPT +_CRYPT_HOOK(des); +#endif + +_CRYPT_HOOK(md5); +_CRYPT_HOOK(shs); + +#undef _CRYPT_HOOK + +/* +// -------------------------------------------------------------------------- +// What is the default? +*/ +#ifdef _CRYPT_DEFAULT_DES + +/* use the 'best' encryption */ +/* currently SHA-1 */ +#define _CRYPT_DEFAULT_VERSION _SHS_CRYPT + +#else + +/* else use DES encryption */ +#define _CRYPT_DEFAULT_VERSION _DES_CRYPT + +#endif + +/* +// -------------------------------------------------------------------------- +// other unimportant magic, enlarge as algorithms warrant, do not reduce. +*/ + +/* largest size of encrypted password */ +#define _CRYPT_OUTPUT_SIZE _PASSWORD_LEN +#define _CRYPT_MAX_SALT_LEN 24 /* token=5 salt=16 extra=4 */ + +/* magic sizes not defined elsewhere, cleaner through defs */ +#define _MD5_SIZE 16 +#define _SHS_SIZE 20 + +#ifndef _CRYPT_C_ +extern void to64(char * s, unsigned long v, int n); +#endif + |
