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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2025 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/>.
*/
//---------------------------------------------------------------------------
#include "check.h"
#include "errorlogger.h"
#include "settings.h"
#include "token.h"
#include "tokenize.h"
#include "vfvalue.h"
#include <algorithm>
#include <cctype>
#include <iostream>
#include <stdexcept>
#include <utility>
//---------------------------------------------------------------------------
Check::Check(const std::string &aname)
: mName(aname)
{
{
const auto it = std::find_if(instances().begin(), instances().end(), [&](const Check *i) {
return i->name() == aname;
});
if (it != instances().end())
throw std::runtime_error("'" + aname + "' instance already exists");
}
// make sure the instances are sorted
const auto it = std::find_if(instances().begin(), instances().end(), [&](const Check* i) {
return i->name() > aname;
});
if (it == instances().end())
instances().push_back(this);
else
instances().insert(it, this);
}
void Check::writeToErrorList(const ErrorMessage &errmsg)
{
std::cout << errmsg.toXML() << std::endl;
}
void Check::reportError(const std::list<const Token *> &callstack, Severity severity, const std::string &id, const std::string &msg, const CWE &cwe, Certainty certainty)
{
// TODO: report debug warning when error is for a disabled severity
const ErrorMessage errmsg(callstack, mTokenizer ? &mTokenizer->list : nullptr, severity, id, msg, cwe, certainty);
if (mErrorLogger)
mErrorLogger->reportErr(errmsg);
else
writeToErrorList(errmsg);
}
void Check::reportError(const ErrorPath &errorPath, Severity severity, const char id[], const std::string &msg, const CWE &cwe, Certainty certainty)
{
// TODO: report debug warning when error is for a disabled severity
const ErrorMessage errmsg(errorPath, mTokenizer ? &mTokenizer->list : nullptr, severity, id, msg, cwe, certainty);
if (mErrorLogger)
mErrorLogger->reportErr(errmsg);
else
writeToErrorList(errmsg);
}
bool Check::wrongData(const Token *tok, const char *str)
{
if (mSettings->daca)
reportError(tok, Severity::debug, "DacaWrongData", "Wrong data detected by condition " + std::string(str));
return true;
}
std::list<Check *> &Check::instances()
{
#ifdef __SVR4
// Under Solaris, destructors are called in wrong order which causes a segmentation fault.
// This fix ensures pointer remains valid and reachable until program terminates.
static std::list<Check *> *_instances= new std::list<Check *>;
return *_instances;
#else
static std::list<Check *> _instances;
return _instances;
#endif
}
std::string Check::getMessageId(const ValueFlow::Value &value, const char id[])
{
if (value.condition != nullptr)
return id + std::string("Cond");
if (value.safe)
return std::string("safe") + (char)std::toupper(id[0]) + (id + 1);
return id;
}
ErrorPath Check::getErrorPath(const Token* errtok, const ValueFlow::Value* value, std::string bug) const
{
ErrorPath errorPath;
if (!value) {
errorPath.emplace_back(errtok, std::move(bug));
} else if (mSettings->verbose || mSettings->outputFormat == Settings::OutputFormat::xml || !mSettings->templateLocation.empty()) {
errorPath = value->errorPath;
errorPath.emplace_back(errtok, std::move(bug));
} else {
if (value->condition)
errorPath.emplace_back(value->condition, "condition '" + value->condition->expressionString() + "'");
//else if (!value->isKnown() || value->defaultArg)
// errorPath = value->callstack;
errorPath.emplace_back(errtok, std::move(bug));
}
return errorPath;
}
void Check::logChecker(const char id[])
{
reportError(nullptr, Severity::internal, "logChecker", id);
}
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