CT_POLICY_EVAL_CTX_set1_issuer
int CT_POLICY_EVAL_CTX_set1_issuer(CT_POLICY_EVAL_CTX *ctx, X509 *issuer);
LCRYPTO_ALIAS(CT_POLICY_EVAL_CTX_set1_issuer);
LCRYPTO_USED(CT_POLICY_EVAL_CTX_set1_issuer);
if (!CT_POLICY_EVAL_CTX_set1_issuer(ct_policy, issuer))