in src/core/transport/http/sender/ssl/ssl_utils.c [44:52]
void X509_get0_signature(const ASN1_BIT_STRING **psig,
const X509_ALGOR **palg,
const X509 *x)
{
if (x) {
*psig = x->signature;
*palg = x->sig_alg;
}
}