cppcheck/lib/checkobsoletefunctions.h

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2011 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 CheckObsoleteFunctionsH
#define CheckObsoleteFunctionsH
//---------------------------------------------------------------------------
#include "check.h"
#include <string>
#include <list>
/// @addtogroup Checks
/// @{
/**
* @brief Using obsolete functions that are always insecure to use.
*/
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class CheckObsoleteFunctions : public Check {
public:
/** This constructor is used when registering the CheckObsoleteFunctions */
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CheckObsoleteFunctions() : Check(myName()) {
initObsoleteFunctions();
}
/** This constructor is used when running checks. */
CheckObsoleteFunctions(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
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: Check(myName(), tokenizer, settings, errorLogger) {
initObsoleteFunctions();
}
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void runSimplifiedChecks(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger) {
CheckObsoleteFunctions checkObsoleteFunctions(tokenizer, settings, errorLogger);
checkObsoleteFunctions.obsoleteFunctions();
}
/** Check for obsolete functions */
void obsoleteFunctions();
private:
/* function name / error message */
std::map<std::string, std::string> _obsoleteStandardFunctions;
std::map<std::string, std::string> _obsoletePosixFunctions;
std::map<std::string, std::string> _obsoleteC99Functions;
/** init obsolete functions list ' */
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void initObsoleteFunctions() {
_obsoletePosixFunctions["bsd_signal"] = "Found obsolete function 'bsd_signal'. It is recommended that new applications use the 'sigaction' function";
_obsoletePosixFunctions["gethostbyaddr"] = "Found obsolete function 'gethostbyaddr'. It is recommended that new applications use the 'getnameinfo' function";
_obsoletePosixFunctions["gethostbyname"] = "Found obsolete function 'gethostbyname'. It is recommended that new applications use the 'getaddrinfo' function";
_obsoletePosixFunctions["usleep"] = "Found obsolete function 'usleep'. It is recommended that new applications use the 'nanosleep' or 'setitimer' function\n"
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"Found obsolete function 'usleep'. POSIX.1-2001 declares usleep() function obsolete and POSIX.1-2008 removes it. It is recommended that new applications use the 'nanosleep' or 'setitimer' function.";
_obsoletePosixFunctions["bcmp"]="Found obsolete function 'bcmp'. It is recommended that new applications use the 'memcmp' function";
_obsoletePosixFunctions["bcopy"]="Found obsolete function 'bcopy'. It is recommended that new applications use the 'memmove' or 'memcpy' functions";
_obsoletePosixFunctions["bzero"]="Found obsolete function 'bzero'. It is recommended that new applications use the 'memset' function";
_obsoletePosixFunctions["ecvt"]="Found obsolete function 'ecvt'. It is recommended that new applications use the 'sprintf' function";
_obsoletePosixFunctions["fcvt"]="Found obsolete function 'fcvt'. It is recommended that new applications use the 'sprintf' function";
_obsoletePosixFunctions["gcvt"]="Found obsolete function 'gcvt'. It is recommended that new applications use the 'sprintf' function";
_obsoletePosixFunctions["ftime"]="Found obsolete function 'ftime'.\n"
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"It is recommended that new applications use time(), gettimeofday(), or clock_gettime() instead. "
"For high-resolution timing on Windows, QueryPerformanceCounter() and QueryPerformanceFrequency may be used.";
_obsoletePosixFunctions["getcontext"] = "Found obsolete function 'getcontext'. Due to portability issues with this function, applications are recommended to be rewritten to use POSIX threads";
_obsoletePosixFunctions["makecontext"] = "Found obsolete function 'makecontext'. Due to portability issues with this function, applications are recommended to be rewritten to use POSIX threads";
_obsoletePosixFunctions["swapcontext"] = "Found obsolete function 'swapcontext'. Due to portability issues with this function, applications are recommended to be rewritten to use POSIX threads";
_obsoletePosixFunctions["getwd"] = "Found obsolete function 'getwd'. It is recommended that new applications use the 'getcwd' function";
// See #2334 (using the Qt Model/View function 'index')
_obsoletePosixFunctions["index"] ="Found obsolete function 'index'. It is recommended to use the function 'strchr' instead";
_obsoletePosixFunctions["rindex"] = "Found obsolete function 'rindex'. It is recommended to use the function 'strrchr' instead";
_obsoletePosixFunctions["pthread_attr_getstackaddr"] = "Found obsolete function 'pthread_attr_getstackaddr'.It is recommended that new applications use the 'pthread_attr_getstack' function";
_obsoletePosixFunctions["pthread_attr_setstackaddr"] = "Found obsolete function 'pthread_attr_setstackaddr'.It is recommended that new applications use the 'pthread_attr_setstack' function";
_obsoletePosixFunctions["scalbln"] = "Found obsolete function 'scalb'.It is recommended to use either 'scalbln', 'scalblnf' or 'scalblnl' instead of this function";
_obsoletePosixFunctions["ualarm"] = "Found obsolete function 'ualarm'.It is recommended to use either 'timer_create', 'timer_delete', 'timer_getoverrun', 'timer_gettime', or 'timer_settime' instead of this function";
_obsoletePosixFunctions["vfork"] = "Found obsolete function 'vfork'. It is recommended to use the function 'fork' instead";
_obsoletePosixFunctions["wcswcs"] = "Found obsolete function 'wcswcs'. It is recommended to use the function 'wcsstr' instead";
_obsoleteStandardFunctions["gets"] = "Found obsolete function 'gets'. It is recommended to use the function 'fgets' instead\n"
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"Found obsolete function 'gets'. With gets you'll get buffer overruns if the input data too big for the buffer. It is recommended to use the function 'fgets' instead.";
_obsoleteC99Functions["alloca"] = "Found obsolete function 'alloca'. It is recommended to use a variable length array.\nFound obsolete function 'alloca'. It is recommended to use a variable length array or a dynamically allocated array. The function 'alloca' is dangerous for many reasons (http://stackoverflow.com/questions/1018853/why-is-alloca-not-considered-good-practice and http://linux.die.net/man/3/alloca).";
}
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void getErrorMessages(ErrorLogger *errorLogger, const Settings *settings) {
CheckObsoleteFunctions c(0, settings, errorLogger);
std::map<std::string,std::string>::const_iterator it(_obsoletePosixFunctions.begin()), itend(_obsoletePosixFunctions.end());
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for (; it!=itend; ++it) {
c.reportError(0, Severity::style, "obsoleteFunctions"+it->first, it->second);
}
}
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std::string myName() const {
return "Obsolete functions";
}
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std::string classInfo() const {
std::string info = "Warn if any of these obsolete functions are used:\n";
std::map<std::string,std::string>::const_iterator it(_obsoletePosixFunctions.begin()), itend(_obsoletePosixFunctions.end());
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for (; it!=itend; ++it) {
info += "* " + it->first + "\n";
}
return info;
}
};
/// @}
//---------------------------------------------------------------------------
#endif