Unify checking for the asn1_flag

There are only two flag values that libcrypto understands and the default
value is 1 while, helpfully, the undesirable non-default is 0. The few
existing callers set OPENSSL_EC_NAMED_CURVE or OPENSSL_EC_EXPLICIT_CURVE.
Nevertheless, the flag should be checked properly as a flag. The recent
upstream checks for EC_GROUP_get_asn1_flag(group) == OPENSSL_EC_NAMED_CURVE
don't look right either...

ok jsing

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libcrypto/ec/eck_prn.c b/src/lib/libcrypto/ec/eck_prn.c
index 012391c803..98e1a7e7bd 100644
--- a/src/lib/libcrypto/ec/eck_prn.c
+++ b/src/lib/libcrypto/ec/eck_prn.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: eck_prn.c,v 1.39 2024/11/14 10:27:59 tb Exp $ */
+/* $OpenBSD: eck_prn.c,v 1.40 2024/11/25 06:51:39 tb Exp $ */
 /*
  * Written by Nils Larsch for the OpenSSL project.
  */
@@ -330,7 +330,7 @@ ECPKParameters_print(BIO *bio, const EC_GROUP *group, int off)
                 return 0;
         }
 
-        if (EC_GROUP_get_asn1_flag(group))
+        if ((EC_GROUP_get_asn1_flag(group) & OPENSSL_EC_NAMED_CURVE) != 0)
                 return ecpk_print_asn1_parameters(bio, group, off);
 
         return ecpk_print_explicit_parameters(bio, group, off);