Latest update.

crypto/property/property_parse.c

@@ -453,6 +453,35 @@ int ossl_property_has_optional(const OSSL_PROPERTY_LIST *query)
     return query->has_optional ? 1 : 0;
 }
 
+int ossl_property_is_enabled(OPENSSL_CTX *ctx,  const char *property_name,
+                             const OSSL_PROPERTY_LIST *prop_list)
+{
+    int i;
+    OSSL_PROPERTY_IDX name_id;
+    const PROPERTY_DEFINITION *prop = NULL;
+
+    if (prop_list == NULL)
+        return 0;
+
+    if (!parse_name(ctx, &property_name, 0, &name_id))
+        return 0;
+
+    prop = prop_list->properties;
+    for (i = 0; i < prop_list->n; ++i) {
+        if (prop[i].name_idx == name_id) {
+            /* Do a separate check for override as it does not set type */
+            if (prop[i].optional || prop[i].oper == PROPERTY_OVERRIDE)
+                return 0;
+            return (prop[i].type == PROPERTY_TYPE_STRING
+                    && ((prop[i].oper == PROPERTY_OPER_EQ
+                             && prop[i].v.str_val == ossl_property_true)
+                         || (prop[i].oper == PROPERTY_OPER_NE
+                             && prop[i].v.str_val != ossl_property_true)));
+        }
+    }
+    return 0;
+}
+
 /*
  * Compare a query against a definition.
  * Return the number of clauses matched or -1 if a mandatory clause is false.