Make ASN.1 BIO internal

With every bump we can remove a bit more of the ASN.1 BIO and the
streaming interface. At some point enough will be internal so that
we can rewrite it and bring it in a shape where mere mortals can
follow all the twists and turns. This is the next step: BIO_f_asn1(3)
goes away and takes BIO_asn1_{get,set}_{prefix,suffix}() with it,
a bunch of functions helping along in a write-after-free recently.
The getters go away, the setters stay for now.

ok jsing

1 files changed, 4 insertions, 1 deletions

diff --git a/src/lib/libcrypto/asn1/bio_ndef.c b/src/lib/libcrypto/asn1/bio_ndef.c
index 11e51edade..98bb1cd197 100644
--- a/src/lib/libcrypto/asn1/bio_ndef.c
+++ b/src/lib/libcrypto/asn1/bio_ndef.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: bio_ndef.c,v 1.23 2023/07/09 19:22:43 tb Exp $ */
+/* $OpenBSD: bio_ndef.c,v 1.24 2023/07/28 09:58:30 tb Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project.
  */
@@ -61,6 +61,9 @@
 
 #include "asn1_local.h"
 
+int BIO_asn1_set_prefix(BIO *b, asn1_ps_func *prefix, asn1_ps_func *prefix_free);
+int BIO_asn1_set_suffix(BIO *b, asn1_ps_func *suffix, asn1_ps_func *suffix_free);
+
 /* Experimental NDEF ASN1 BIO support routines */
 
 /* The usage is quite simple, initialize an ASN1 structure,