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* [musl] SIGSEV error when using REGEX with musl library
@ 2021-11-25 14:53 Quesada Gonzalez, Elena
  2021-11-25 15:52 ` Rich Felker
  0 siblings, 1 reply; 4+ messages in thread
From: Quesada Gonzalez, Elena @ 2021-11-25 14:53 UTC (permalink / raw)
  To: musl


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I have the following function that works fine if the regular expression is correct, but get a SIGSEGV when calling  regex_search  compiling with clang-9 and using musl 1.2.
However, it works fine with glibc,

Could be a bug in musl library?


Find code below

void CRuntimeCommandLine::LoadComplement(const multimap<std::string, std::string>& mapArguments)
{
    // Find parameter
    multimap<string, string>::const_iterator iter;
    iter = mapArguments.find("Complement");
    if(iter == mapArguments.end())
    {
        // Only fatal. Statement is not initialized yet.
        Logger::fatal(Errors::RCMD_F005_MISSING_MANDATORY_PARAM, "Missing mandatory parameter --Complement");
    }
    // regex expression for system_secret to be checked (Max 4Bytes, hexadecimal number in lowe case letters and no 0x format)
    regex regexp("^[0-9a-f]{1,8}$");

    // regex_search that searches pattern regexp in the string mystr
    std::string s = iter->second.c_str();
    if (false == std::regex_search(s, regexp))
    {
        // Only fatal. Statement is not initialized yet.
        Logger::fatal(Errors::RCMD_F006_INVALID_VALUE, "Invalid --Complement=hexvalue value");
    }
    else
    {
        // get hexadecimal value
        (void)sscanf(s.c_str(), "%X", &(m_cmdParameters.complementValue));
    }

}
With kind regards
Elena Quesada Gonzalez

Siemens Rail Automation S.A.U.
Mobility
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Mobile: +34 686405648
mailto:elena.quesada_gonzalez@siemens.com
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^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-11-26 16:35 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-11-25 14:53 [musl] SIGSEV error when using REGEX with musl library Quesada Gonzalez, Elena
2021-11-25 15:52 ` Rich Felker
2021-11-26 11:46   ` Quesada Gonzalez, Elena
2021-11-26 16:32     ` Alex Xu

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