Linux(openssl)：解析证书

//cert_parse.hpp
#include 
#include 
#include 
 
namespace fs = std::filesystem;
 
enum class CertParseRes{
    ok = 0,
    invalidFile,
    invalidCert,
    invalidPemStr,
    createCertObjFailed,
    loadCertFailed,
    loadPemFailed,
    readX509CertFailed,
};
 
class CertParse{
public:
    CertParse(const fs::path& filePath) : m_filePath(filePath) {}
    CertParse(const std::string& pemStr) : m_certPemStr(pemStr) {}
    CertParse() = delete;
    CertParse(const CertParse&) = delete;
    CertParse(CertParse&&) = delete;
    CertParse& operator=(const CertParse&) = delete;
    CertParse& operator=(CertParse&&) = delete;
    ~CertParse() = default;
 
public:
    CertParseRes doParse();
    std::string pErr(CertParseRes res);
    void print();
 
public:
    int m_version{0};
    std::string m_issue;
    std::string m_issuerCommonName;