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https://github.com/kasmtech/KasmVNC.git
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259f1055cb
Provides safety against them accidentally becoming negative because of bugs in the calculations. Also does the same to CharArray and friends as they were strongly connection to the stream objects.
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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//
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// XXX not thread-safe, because d3des isn't - do we need to worry about this?
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//
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#include <string.h>
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extern "C" {
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#include <rfb/d3des.h>
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}
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#include <rdr/types.h>
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#include <rdr/Exception.h>
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#include <rfb/Password.h>
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using namespace rfb;
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static unsigned char d3desObfuscationKey[] = {23,82,107,6,35,78,88,7};
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PlainPasswd::PlainPasswd() {}
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PlainPasswd::PlainPasswd(char* pwd) : CharArray(pwd) {
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}
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PlainPasswd::PlainPasswd(size_t len) : CharArray(len) {
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}
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PlainPasswd::PlainPasswd(const ObfuscatedPasswd& obfPwd) : CharArray(9) {
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if (obfPwd.length < 8)
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throw rdr::Exception("bad obfuscated password length");
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deskey(d3desObfuscationKey, DE1);
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des((rdr::U8*)obfPwd.buf, (rdr::U8*)buf);
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buf[8] = 0;
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}
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PlainPasswd::~PlainPasswd() {
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replaceBuf(0);
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}
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void PlainPasswd::replaceBuf(char* b) {
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if (buf)
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memset(buf, 0, strlen(buf));
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CharArray::replaceBuf(b);
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}
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ObfuscatedPasswd::ObfuscatedPasswd() : length(0) {
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}
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ObfuscatedPasswd::ObfuscatedPasswd(size_t len) : CharArray(len), length(len) {
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}
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ObfuscatedPasswd::ObfuscatedPasswd(const PlainPasswd& plainPwd) : CharArray(8), length(8) {
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size_t l = strlen(plainPwd.buf), i;
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for (i=0; i<8; i++)
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buf[i] = i<l ? plainPwd.buf[i] : 0;
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deskey(d3desObfuscationKey, EN0);
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des((rdr::U8*)buf, (rdr::U8*)buf);
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}
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ObfuscatedPasswd::~ObfuscatedPasswd() {
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if (buf)
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memset(buf, 0, length);
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}
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