diff options
Diffstat (limited to 'modules/mod_crypt/mod_crypt.c')
-rw-r--r-- | modules/mod_crypt/mod_crypt.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/modules/mod_crypt/mod_crypt.c b/modules/mod_crypt/mod_crypt.c new file mode 100644 index 0000000..c427073 --- /dev/null +++ b/modules/mod_crypt/mod_crypt.c @@ -0,0 +1,110 @@ +/* + * Copyright © 2006-2016 SplinterGU (Fenix/Bennugd) + * Copyright © 2002-2006 Fenix Team (Fenix) + * Copyright © 1999-2002 José Luis Cebrián Pagüe (Fenix) + * + * This file is part of Bennu - Game Development + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * + * 3. This notice may not be removed or altered from any source + * distribution. + * + */ + +#include "b_crypt.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "bgddl.h" + +/* --------------------------------------------------------------------------- */ + +static int modcrypt_new( INSTANCE * my, int * params ) +{ + return ( ( int ) crypt_create( params[0], ( char * ) params[1] ) ); +} + +/* --------------------------------------------------------------------------- */ + +static int modcrypt_del( INSTANCE * my, int * params ) +{ + crypt_destroy( ( crypt_handle * ) params[0] ); + return 1; +} + +/* --------------------------------------------------------------------------- */ + +static int __crypt( crypt_handle * ch, char * in, char * out, int blocks, int enc ) +{ + if ( !ch || !in || !out || blocks <= 0 ) return -1; + + while ( blocks-- ) + { + if ( crypt_data( ch, in, out, 8, enc ) <= 0 ) return -1; + in += 8; + out += 8; + } + + return 0; +} + +/* --------------------------------------------------------------------------- */ + +static int modcrypt_encrypt( INSTANCE * my, int * params ) +{ + return ( __crypt( ( crypt_handle * ) params[0], ( char * ) params[1], ( char * ) params[2], params[3], 1 ) ); +} + +/* --------------------------------------------------------------------------- */ + +static int modcrypt_decrypt( INSTANCE * my, int * params ) +{ + return ( __crypt( ( crypt_handle * ) params[0], ( char * ) params[1], ( char * ) params[2], params[3], 0 ) ); +} + +/* --------------------------------------------------------------------------- */ + +static int modcrypt_encrypt2( INSTANCE * my, int * params ) +{ + int r; + crypt_handle * ch = crypt_create( params[0], ( char * ) params[1] ); + r = __crypt( ch, ( char * ) params[2], ( char * ) params[3], params[4], 1 ); + crypt_destroy( ch ); + return r; +} + +/* --------------------------------------------------------------------------- */ + +static int modcrypt_decrypt2( INSTANCE * my, int * params ) +{ + int r; + crypt_handle * ch = crypt_create( params[0], ( char * ) params[1] ); + r = __crypt( ch, ( char * ) params[2], ( char * ) params[3], params[4], 0 ); + crypt_destroy( ch ); + return r; +} + +/* --------------------------------------------------------------------------- */ +/* exports */ +/* --------------------------------------------------------------------------- */ + +#include "mod_crypt_exports.h" + +/* --------------------------------------------------------------------------- */ |