unknown_ext_print: avoid casting away const

The BIO_dump_indent() API masterpiece expects a const char pointer as
input. Don't cast away const when suppressing pointer sign warnings.

Prompted by a report by N. Dossche

ok kenjiro

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libcrypto/x509/x509_prn.c b/src/lib/libcrypto/x509/x509_prn.c
index 327bc33772..fb502c67ff 100644
--- a/src/lib/libcrypto/x509/x509_prn.c
+++ b/src/lib/libcrypto/x509/x509_prn.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: x509_prn.c,v 1.8 2026/05/16 06:27:05 tb Exp $ */
+/* $OpenBSD: x509_prn.c,v 1.9 2026/05/16 06:30:53 tb Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 1999.
  */
@@ -209,7 +209,7 @@ unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag,
                 return ASN1_parse_dump(out,
                     ext->value->data, ext->value->length, indent, -1) > 0;
         case X509V3_EXT_DUMP_UNKNOWN:
-                return BIO_dump_indent(out, (char *)ext->value->data,
+                return BIO_dump_indent(out, (const char *)ext->value->data,
                     ext->value->length, indent) > 0;
         default:
                 return 1;