openssl_strerror_r
if (openssl_strerror_r(reason, rsbuf, sizeof(rsbuf)))
if (openssl_strerror_r(errno, errbuf, sizeof(errbuf)))
if (openssl_strerror_r(errno, errbuf, sizeof(errbuf)))
if (openssl_strerror_r(r, rsbuf, sizeof(rsbuf)))
int openssl_strerror_r(int errnum, char *buf, size_t buflen);