+STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE) **x,
+ const ASN1_OBJECT *obj, int type,
+ const unsigned char *bytes, int len)
+{
+ X509_ATTRIBUTE *attr;
+ STACK_OF(X509_ATTRIBUTE) *ret;
+ attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
+ if(!attr) return 0;
+ ret = X509at_add1_attr(x, attr);
+ X509_ATTRIBUTE_free(attr);
+ return ret;
+}
+
+STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE) **x,
+ int nid, int type,
+ const unsigned char *bytes, int len)
+{
+ X509_ATTRIBUTE *attr;
+ STACK_OF(X509_ATTRIBUTE) *ret;
+ attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
+ if(!attr) return 0;
+ ret = X509at_add1_attr(x, attr);
+ X509_ATTRIBUTE_free(attr);
+ return ret;
+}
+
+STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE) **x,
+ const char *attrname, int type,
+ const unsigned char *bytes, int len)
+{
+ X509_ATTRIBUTE *attr;
+ STACK_OF(X509_ATTRIBUTE) *ret;
+ attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
+ if(!attr) return 0;
+ ret = X509at_add1_attr(x, attr);
+ X509_ATTRIBUTE_free(attr);
+ return ret;
+}
+
+void *X509at_get0_data_by_OBJ(STACK_OF(X509_ATTRIBUTE) *x,
+ ASN1_OBJECT *obj, int lastpos, int type)
+{
+ int i;
+ X509_ATTRIBUTE *at;
+ i = X509at_get_attr_by_OBJ(x, obj, lastpos);
+ if (i == -1)
+ return NULL;
+ if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1))
+ return NULL;
+ at = X509at_get_attr(x, i);
+ if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1))
+ return NULL;
+ return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
+}
+