- int i;
- if (!sk || !sk_num(sk)) return NULL;
- /* Search the attributes for a digest */
- for (i = 0; i < sk_num(sk); i++)
- {
- attr = (X509_ATTRIBUTE *) sk_value(sk, i);
- if (OBJ_obj2nid(attr->object) == NID_pkcs9_messageDigest)
- {
- if (!attr->set) return NULL;
- if (!attr->value.set ||
- !sk_num (attr->value.set) ) return NULL;
- astype = (ASN1_TYPE *) sk_value(attr->value.set, 0);
- return astype->value.octet_string;
- }
- }
- return NULL;
- }
+ if(!(astype = get_attribute(sk, NID_pkcs9_messageDigest))) return NULL;
+ return astype->value.octet_string;
+}