103 lines
3.2 KiB
C++
103 lines
3.2 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2009 Daniel Marjamäki and Cppcheck team.
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*
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* This program 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 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 program. If not, see <http://www.gnu.org/licenses/
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*/
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//---------------------------------------------------------------------------
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#ifndef CheckBufferOverrunH
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#define CheckBufferOverrunH
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//---------------------------------------------------------------------------
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#include "check.h"
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#include "settings.h"
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#include <list>
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class ErrorLogger;
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class Token;
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class Tokenizer;
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/// @addtogroup Checks
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/// @{
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class CheckBufferOverrun : public Check
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{
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public:
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/** This constructor is used when registering the CheckClass */
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CheckBufferOverrun() : Check()
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{ }
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/** This constructor is used when running checks.. */
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CheckBufferOverrun(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
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: Check(tokenizer, settings, errorLogger)
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{ }
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void runSimplifiedChecks(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
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{
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CheckBufferOverrun checkBufferOverrun(tokenizer, settings, errorLogger);
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if (settings->_showAll)
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checkBufferOverrun.bufferOverrun();
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}
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/** Check for buffer overruns */
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void bufferOverrun();
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private:
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/** Check for buffer overruns - locate struct variables and check them with the .._CheckScope function */
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void checkStructVariable();
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/** Check for buffer overruns - locate global variables and local function variables and check them with the checkScope function */
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void checkGlobalAndLocalVariable();
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/** Check for buffer overruns - this is the function that performs the actual checking */
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void checkScope(const Token *tok, const char *varname[], const int size, const int total_size, unsigned int varid);
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/** callstack - used during intra-function checking */
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std::list<const Token *> _callStack;
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void arrayIndexOutOfBounds(const Token *tok);
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void arrayIndexOutOfBounds();
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void bufferOverrun(const Token *tok);
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void strncatUsage(const Token *tok);
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void outOfBounds(const Token *tok, const std::string &what);
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void sizeArgumentAsChar(const Token *tok);
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void getErrorMessages()
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{
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arrayIndexOutOfBounds(0);
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bufferOverrun(0);
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strncatUsage(0);
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outOfBounds(0, "index");
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sizeArgumentAsChar(0);
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}
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std::string name() const
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{
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return "Bounds checking";
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}
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std::string classInfo() const
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{
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return "out of bounds checking";
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}
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};
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/// @}
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//---------------------------------------------------------------------------
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#endif
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