Return the CMS RecipientInfo type of ri.
ri.
Declared in <openssl/cms.h>
<openssl/cms.h>
int CMS_RecipientInfo_type(CMS_RecipientInfo* ri);
One of CMS_RECIPINFO_TRANS, CMS_RECIPINFO_AGREE, CMS_RECIPINFO_KEK, CMS_RECIPINFO_PASS, or CMS_RECIPINFO_OTHER.