Method sprintfOverlappingDataError

lib/checkstring.cpp:460–472

}

void CheckStringImpl::sprintfOverlappingDataError(const Token *funcTok, const Token *tok, const std::string &varname)
{
    const std::string func = funcTok ? funcTok->str() : "s[n]printf";

    reportError(tok, Severity::error, "sprintfOverlappingData",
                "$symbol:" + varname + "\n"
                "Undefined behavior: Variable '$symbol' is used as parameter and destination in " + func + "().\n" +
                "The variable '$symbol' is used both as a parameter and as destination in " +
                func + "(). The origin and destination buffers overlap. Quote from glibc (C-library) "
                "documentation (http://www.gnu.org/software/libc/manual/html_mono/libc.html#Formatted-Output-Functions): "
                "\"If copying takes place between objects that overlap as a result of a call "
                "to sprintf() or snprintf(), the results are undefined.\"", CWE628, Certainty::normal);
}

void CheckString::runChecks(const Tokenizer &tokenizer, ErrorLogger& errorLogger)
{