CMS_add0_CertificateChoices
CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms);
LCRYPTO_ALIAS(CMS_add0_CertificateChoices);
cch = CMS_add0_CertificateChoices(cms);
LCRYPTO_USED(CMS_add0_CertificateChoices);