cppcheck/lib/checknonreentrantfunctions.h

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2012 Daniel Marjamäki and Cppcheck team.
*
* 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 CheckNonReentrantFunctionsH
#define CheckNonReentrantFunctionsH
//---------------------------------------------------------------------------
#include "check.h"
#include <string>
#include <map>
/// @addtogroup Checks
/// @{
/**
* @brief Using non reentrant functions that can be replaced by their reentrant versions
*/
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class CheckNonReentrantFunctions : public Check {
public:
/** This constructor is used when registering the CheckNonReentrantFunctions */
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CheckNonReentrantFunctions() : Check(myName()) {
initNonReentrantFunctions();
}
/** This constructor is used when running checks. */
CheckNonReentrantFunctions(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
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: Check(myName(), tokenizer, settings, errorLogger) {
initNonReentrantFunctions();
}
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void runSimplifiedChecks(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger) {
CheckNonReentrantFunctions checkNonReentrantFunctions(tokenizer, settings, errorLogger);
checkNonReentrantFunctions.nonReentrantFunctions();
}
/** Check for non reentrant functions */
void nonReentrantFunctions();
private:
/* function name / error message */
std::map<std::string,std::string> _nonReentrantFunctions;
/** init nonreentrant functions list ' */
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void initNonReentrantFunctions() {
static const char * const non_reentrant_functions_list[] = {
"ctime", "localtime", "gmtime", "asctime", "strtok", "gethostbyname", "gethostbyaddr", "getservbyname"
, "getservbyport", "crypt", "ttyname", "rand", "gethostbyname2"
, "getprotobyname", "getnetbyname", "getnetbyaddr", "getrpcbyname", "getrpcbynumber", "getrpcent"
, "ctermid", "tmpnam", "readdir", "getlogin", "getpwent", "getpwnam", "getpwuid", "getspent"
, "fgetspent", "getspnam", "getgrnam", "getgrgid", "getnetgrent", "tempnam", "fgetpwent"
, "fgetgrent", "ecvt", "gcvt", "getservent", "gethostent", "getgrent", "fcvt"
};
// generate messages
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for (unsigned int i = 0; i < (sizeof(non_reentrant_functions_list) / sizeof(char *)); ++i) {
std::string strMsg("Found non reentrant function \'");
strMsg+=non_reentrant_functions_list[i];
strMsg+= "\'. For threadsafe applications it is recommended to use the reentrant replacement function \'";
strMsg+=non_reentrant_functions_list[i];
strMsg+="_r\'";
_nonReentrantFunctions[non_reentrant_functions_list[i]] = strMsg;
}
}
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void getErrorMessages(ErrorLogger *errorLogger, const Settings *settings) {
CheckNonReentrantFunctions c(0, settings, errorLogger);
std::map<std::string,std::string>::const_iterator it(_nonReentrantFunctions.begin()), itend(_nonReentrantFunctions.end());
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for (; it!=itend; ++it) {
c.reportError(0, Severity::portability, "nonreentrantFunctions"+it->first, it->second);
}
}
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std::string myName() const {
return "Non reentrant functions";
}
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std::string classInfo() const {
std::string info = "Warn if any of these non reentrant functions are used:\n";
std::map<std::string,std::string>::const_iterator it(_nonReentrantFunctions.begin()), itend(_nonReentrantFunctions.end());
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for (; it!=itend; ++it) {
info += "* " + it->first + "\n";
}
return info;
}
};
/// @}
//---------------------------------------------------------------------------
#endif