property: correctly set the has optional flag when merging property lists

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12123)

diff --git a/crypto/property/property_parse.c b/crypto/property/property_parse.c
index 21f78c02e2f4efaf750227b779f7f3b9022d39b3..41a5a059c5c9aeec22842cc637d668ee7201efed 100644 (file)
--- a/crypto/property/property_parse.c
+++ b/crypto/property/property_parse.c
@@ -568,6 +568,7 @@ OSSL_PROPERTY_LIST *ossl_property_merge(const OSSL_PROPERTY_LIST *a,
     if (r == NULL)
         return NULL;
 
+    r->has_optional = 0;
     for (i = j = n = 0; i < a->n || j < b->n; n++) {
         if (i >= a->n) {
             copy = &bp[j++];
@@ -581,6 +582,7 @@ OSSL_PROPERTY_LIST *ossl_property_merge(const OSSL_PROPERTY_LIST *a,
             copy = &bp[j++];
         }
         memcpy(r->properties + n, copy, sizeof(r->properties[0]));
+        r->has_optional |= copy->optional;
     }
     r->n = n;
     if (n != t)