cppcheck/src/checkbufferoverrun.h

90 lines
3.1 KiB
C
Raw Normal View History

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2009 Daniel Marjamäki, Reijo Tomperi, Nicolas Le Cam,
2009-03-01 20:52:33 +01:00
* Leandro Penz, Kimmo Varis, Vesa Pikki
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/
*/
//---------------------------------------------------------------------------
#ifndef CheckBufferOverrunH
#define CheckBufferOverrunH
//---------------------------------------------------------------------------
2009-03-20 17:35:53 +01:00
#include "check.h"
#include "settings.h"
#include <list>
class ErrorLogger;
class Token;
class Tokenizer;
2009-03-20 17:35:53 +01:00
class CheckBufferOverrunClass : public Check
{
public:
2009-03-20 17:35:53 +01:00
/** This constructor is used when registering the CheckClass */
2009-03-20 17:35:53 +01:00
CheckBufferOverrunClass() : Check()
{ }
/** This constructor is used when running checks.. */
2009-03-20 17:35:53 +01:00
CheckBufferOverrunClass(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
: Check(tokenizer, settings, errorLogger)
{ }
void runSimplifiedChecks(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
2009-03-20 17:35:53 +01:00
{
CheckBufferOverrunClass checkBufferOverrunClass(tokenizer, settings, errorLogger);
if (settings->_showAll)
checkBufferOverrunClass.bufferOverrun();
}
/** Check for buffer overruns */
void bufferOverrun();
private:
/** Check for buffer overruns - locate struct variables and check them with the .._CheckScope function */
void CheckBufferOverrun_StructVariable();
/** Check for buffer overruns - locate global variables and local function variables and check them with the .._CheckScope function */
void CheckBufferOverrun_GlobalAndLocalVariable();
/** Check for buffer overruns - this is the function that performs the actual checking */
void CheckBufferOverrun_CheckScope(const Token *tok, const char *varname[], const int size, const int total_size, unsigned int varid);
/** callstack - used during intra-function checking */
std::list<const Token *> _callStack;
2009-02-01 16:47:36 +01:00
void arrayIndexOutOfBounds(const Token *tok);
2009-03-21 21:33:27 +01:00
void arrayIndexOutOfBounds();
void bufferOverrun(const Token *tok);
void strncatUsage(const Token *tok);
void outOfBounds(const Token *tok, const std::string &what);
void sizeArgumentAsChar(const Token *tok);
void getErrorMessages()
{
arrayIndexOutOfBounds(0);
bufferOverrun(0);
strncatUsage(0);
outOfBounds(0, "index");
sizeArgumentAsChar(0);
}
};
//---------------------------------------------------------------------------
#endif