X509_PURPOSE_get0_name
LCRYPTO_USED(X509_PURPOSE_get0_name);
LCRYPTO_ALIAS(X509_PURPOSE_get0_name);
const char *X509_PURPOSE_get0_name(const X509_PURPOSE *xp);
X509_PURPOSE_get0_name(ptmp));
X509_PURPOSE_get0_name(ptmp));
pname = X509_PURPOSE_get0_name(pt);