59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
/**
|
|
* @file llnullcipher.cpp
|
|
* @brief Implementation of a cipher which does not encrypt.
|
|
*
|
|
* $LicenseInfo:firstyear=2003&license=viewerlgpl$
|
|
* Second Life Viewer Source Code
|
|
* Copyright (C) 2010, Linden Research, Inc.
|
|
*
|
|
* This 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;
|
|
* version 2.1 of the License only.
|
|
*
|
|
* This 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 this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
|
|
* $/LicenseInfo$
|
|
*/
|
|
|
|
#include "linden_common.h"
|
|
|
|
#include "llnullcipher.h"
|
|
|
|
///----------------------------------------------------------------------------
|
|
/// Class LLNullCipher
|
|
///----------------------------------------------------------------------------
|
|
|
|
U32 LLNullCipher::encrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len)
|
|
{
|
|
if((src_len == dst_len) && src && dst)
|
|
{
|
|
memmove(dst, src, src_len);
|
|
return src_len;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
U32 LLNullCipher::decrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len)
|
|
{
|
|
if((src_len == dst_len) && src && dst)
|
|
{
|
|
memmove(dst, src, src_len);
|
|
return src_len;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
U32 LLNullCipher::requiredEncryptionSpace(U32 len) const
|
|
{
|
|
return len;
|
|
}
|