Detect misusage of C-style strings and related standard functions. More...

#include <checkstring.h>

Inheritance diagram for CheckString:

Public Member Functions
	CheckString ()
	This constructor is used when registering the CheckClass. More...

Public Member Functions inherited from Check
	Check (const std::string &aname)
	This constructor is used when registering the CheckClass. More...

virtual	~Check ()

	Check (const Check &)=delete

Check &	operator= (const Check &)=delete

const std::string &	name () const
	class name, used to generate documentation More...

virtual FileInfo *	getFileInfo (const Tokenizer &, const Settings &) const

virtual FileInfo *	loadFileInfoFromXml (const tinyxml2::XMLElement *xmlElement) const

virtual bool	analyseWholeProgram (const CTU::FileInfo ctu, const std::list< FileInfo > &fileInfo, const Settings &, ErrorLogger &)

Private Member Functions
	CheckString (const Tokenizer tokenizer, const Settings settings, ErrorLogger *errorLogger)
	This constructor is used when running checks. More...

void	runChecks (const Tokenizer &tokenizer, ErrorLogger *errorLogger) override
	Run checks against the normal token list. More...

void	stringLiteralWrite ()
	undefined behaviour, writing string literal More...

void	strPlusChar ()
	str plus char (unusual pointer arithmetic) More...

void	checkIncorrectStringCompare ()
	Check for using bad usage of strncmp and substr More...

void	checkSuspiciousStringCompare ()
	Check for comparison of a string literal with a char* variable More...

void	checkAlwaysTrueOrFalseStringCompare ()
	Check for suspicious code that compares string literals for equality More...

void	overlappingStrcmp ()
	Check for overlapping strcmp() More...

void	sprintfOverlappingData ()
	Check for overlapping source and destination passed to sprintf() More...

void	stringLiteralWriteError (const Token tok, const Token strValue)

void	sprintfOverlappingDataError (const Token funcTok, const Token tok, const std::string &varname)

void	strPlusCharError (const Token *tok)

void	incorrectStringCompareError (const Token *tok, const std::string &func, const std::string &string)

void	incorrectStringBooleanError (const Token *tok, const std::string &string)

void	alwaysTrueFalseStringCompareError (const Token *tok, const std::string &str1, const std::string &str2)

void	alwaysTrueStringVariableCompareError (const Token *tok, const std::string &str1, const std::string &str2)

void	suspiciousStringCompareError (const Token *tok, const std::string &var, bool isLong)

void	suspiciousStringCompareError_char (const Token *tok, const std::string &var)

void	overlappingStrcmpError (const Token eq0, const Token ne0)

void	getErrorMessages (ErrorLogger errorLogger, const Settings settings) const override
	get error messages More...

std::string	classInfo () const override
	get information about this class, used to generate documentation More...

Static Private Member Functions
static std::string	myName ()

Additional Inherited Members
Static Public Member Functions inherited from Check
static std::list< Check * > &	instances ()
	List of registered check classes. More...

static void	writeToErrorList (const ErrorMessage &errmsg)
	Write given error to stdout in xml format. More...

Protected Member Functions inherited from Check
	Check (std::string aname, const Tokenizer tokenizer, const Settings settings, ErrorLogger *errorLogger)
	This constructor is used when running checks. More...

void	reportError (const Token *tok, const Severity severity, const std::string &id, const std::string &msg)
	report an error More...

void	reportError (const Token *tok, const Severity severity, const std::string &id, const std::string &msg, const CWE &cwe, Certainty certainty)
	report an error More...

void	reportError (const std::list< const Token * > &callstack, Severity severity, const std::string &id, const std::string &msg)
	report an error More...

void	reportError (const std::list< const Token * > &callstack, Severity severity, const std::string &id, const std::string &msg, const CWE &cwe, Certainty certainty)
	report an error More...

void	reportError (const ErrorPath &errorPath, Severity severity, const char id[], const std::string &msg, const CWE &cwe, Certainty certainty)

void	logChecker (const char id[])
	log checker More...

ErrorPath	getErrorPath (const Token errtok, const ValueFlow::Value value, std::string bug) const

bool	wrongData (const Token tok, const char str)
	Use WRONG_DATA in checkers when you check for wrong data. More...

Static Protected Member Functions inherited from Check
static std::string	getMessageId (const ValueFlow::Value &value, const char id[])

Protected Attributes inherited from Check
const Tokenizer *const	mTokenizer {}

const Settings *const	mSettings {}

ErrorLogger *const	mErrorLogger {}