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,
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* 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/
*/
//---------------------------------------------------------------------------
// Buffer overrun..
//---------------------------------------------------------------------------
#include "checkdangerousfunctions.h"
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#include "tokenize.h"
#include "token.h"
#include <algorithm>
#include <sstream>
#include <list>
#include <cstring>
#include <cstdlib> // <- strtoul
//---------------------------------------------------------------------------
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// Register this check class (by creating a static instance of it)
namespace
{
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CheckDangerousFunctionsClass instance;
}
//---------------------------------------------------------------------------
// Dangerous functions
//---------------------------------------------------------------------------
void CheckDangerousFunctionsClass::dangerousFunctions()
{
for (const Token *tok = _tokenizer->tokens(); tok; tok = tok->next())
{
if (Token::simpleMatch(tok, "mktemp ("))
{
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dangerousFunctionmktemp(tok);
}
else if (Token::simpleMatch(tok, "gets ("))
{
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dangerousFunctiongets(tok);
}
else if (Token::simpleMatch(tok, "scanf ("))
{
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dangerousFunctionscanf(tok);
}
}
}
//---------------------------------------------------------------------------
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void CheckDangerousFunctionsClass::dangerousFunctionmktemp(const Token *tok)
{
reportError(tok, "style", "dangerousFunctionmktemp", "Found 'mktemp'. You should use 'mkstemp' instead");
}
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void CheckDangerousFunctionsClass::dangerousFunctiongets(const Token *tok)
{
reportError(tok, "style", "dangerousFunctiongets", "Found 'gets'. You should use 'fgets' instead");
}
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void CheckDangerousFunctionsClass::dangerousFunctionscanf(const Token *tok)
{
reportError(tok, "style", "dangerousFunctionscanf", "Found 'scanf'. You should use 'fgets' instead");
}