Append a copy of an X509_ATTRIBUTE to a CMS SignerInfo's unsigned attributes.
Declared in <openssl/cms.h>
int
CMS_unsigned_add1_attr(
CMS_SignerInfo* si,
X509_ATTRIBUTE* attr);
1 on success, or 0 on failure.
| Name | Description |
|---|---|
| si | SignerInfo whose unsignedAttrs set is extended. |
| attr | Attribute to copy; must not be NULL. |