From ea1947ffcc606d757357398b24e74a3f4ecefa07 Mon Sep 17 00:00:00 2001
From: neonloop
Date: Wed, 20 Oct 2021 14:54:27 +0000
Subject: Initial commit from steward-fu release

---
 modules/mod_crypt/mod_crypt.c | 110 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 modules/mod_crypt/mod_crypt.c

(limited to 'modules/mod_crypt/mod_crypt.c')

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"
+
+/* --------------------------------------------------------------------------- */
-- 
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