cppcheck/src/checkdangerousfunctions.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2009 Daniel Marjamäki, Reijo Tomperi, Nicolas Le Cam,
* Leandro Penz, Kimmo Varis
*
* 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/
*/
//---------------------------------------------------------------------------
// Buffer overrun..
//---------------------------------------------------------------------------
#include "checkdangerousfunctions.h"
#include "errormessage.h"
#include <algorithm>
#include <sstream>
#include <list>
#include <cstring>
#include <cstdlib> // <- strtoul
//---------------------------------------------------------------------------
// _callStack used when parsing into subfunctions.
CheckDangerousFunctionsClass::CheckDangerousFunctionsClass(const Tokenizer *tokenizer, const Settings &settings, ErrorLogger *errorLogger)
: _settings(settings)
{
_tokenizer = tokenizer;
_errorLogger = errorLogger;
}
CheckDangerousFunctionsClass::~CheckDangerousFunctionsClass()
{
}
// Modified version of 'ReportError' that also reports the callstack
void CheckDangerousFunctionsClass::ReportError(const std::string &errmsg)
{
std::ostringstream ostr;
std::list<const Token *>::const_iterator it;
for (it = _callStack.begin(); it != _callStack.end(); it++)
ostr << _tokenizer->fileLine(*it) << " -> ";
ostr << errmsg;
_errorLogger->reportErr(ostr.str());
}
//---------------------------------------------------------------------------
//---------------------------------------------------------------------------
// Dangerous functions
//---------------------------------------------------------------------------
void CheckDangerousFunctionsClass::dangerousFunctions()
{
for (const Token *tok = _tokenizer->tokens(); tok; tok = tok->next())
{
if (Token::Match(tok, "mktemp ("))
{
std::ostringstream ostr;
ostr << _tokenizer->fileLine(tok) << ": Found 'mktemp'. You should use 'mkstemp' instead";
_errorLogger->reportErr(ostr.str());
}
else if (Token::Match(tok, "gets|scanf ("))
{
std::ostringstream ostr;
ostr << _tokenizer->fileLine(tok) << ": Found '" << tok->str() << "'. You should use 'fgets' instead";
_errorLogger->reportErr(ostr.str());
}
}
}
//---------------------------------------------------------------------------