From 97c7ad8e33c5ce20f13ca4537b399778586b1580 Mon Sep 17 00:00:00 2001
From: tb <tb@openbsd.org>
Date: Sat, 17 Feb 2018 13:57:14 +0000
Subject: [PATCH] Provide BIO_meth_{free,new}() and
 BIO_meth_set_{create,crtl,destroy}() and BIO_meth_set_{puts,read,write}().

ok jsing
---
 lib/libcrypto/Makefile       |  4 +-
 lib/libcrypto/Symbols.list   |  8 ++++
 lib/libcrypto/bio/bio.h      | 13 +++++-
 lib/libcrypto/bio/bio_meth.c | 82 ++++++++++++++++++++++++++++++++++++
 4 files changed, 104 insertions(+), 3 deletions(-)
 create mode 100644 lib/libcrypto/bio/bio_meth.c

diff --git a/lib/libcrypto/Makefile b/lib/libcrypto/Makefile
index 5432bab176a..85e6b0ee8d3 100644
--- a/lib/libcrypto/Makefile
+++ b/lib/libcrypto/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.23 2017/08/28 17:41:59 jsing Exp $
+# $OpenBSD: Makefile,v 1.24 2018/02/17 13:57:14 tb Exp $
 
 LIB=	crypto
 LIBREBUILD=y
@@ -64,7 +64,7 @@ SRCS+= a_time_tm.c
 SRCS+= bf_skey.c bf_ecb.c bf_cfb64.c bf_ofb64.c
 
 # bio/
-SRCS+= bio_lib.c bio_cb.c bio_err.c
+SRCS+= bio_lib.c bio_cb.c bio_err.c bio_meth.c
 SRCS+= bss_mem.c bss_null.c bss_fd.c
 SRCS+= bss_file.c bss_sock.c bss_conn.c
 SRCS+= bf_null.c bf_buff.c b_print.c b_dump.c
diff --git a/lib/libcrypto/Symbols.list b/lib/libcrypto/Symbols.list
index 99930ffa17c..bee42ac1641 100644
--- a/lib/libcrypto/Symbols.list
+++ b/lib/libcrypto/Symbols.list
@@ -286,6 +286,14 @@ BIO_gethostbyname
 BIO_gets
 BIO_indent
 BIO_int_ctrl
+BIO_meth_free
+BIO_meth_new
+BIO_meth_set_create
+BIO_meth_set_ctrl
+BIO_meth_set_destroy
+BIO_meth_set_puts
+BIO_meth_set_read
+BIO_meth_set_write
 BIO_method_name
 BIO_method_type
 BIO_new
diff --git a/lib/libcrypto/bio/bio.h b/lib/libcrypto/bio/bio.h
index faca1255442..3a1577ab37c 100644
--- a/lib/libcrypto/bio/bio.h
+++ b/lib/libcrypto/bio/bio.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: bio.h,v 1.30 2017/04/06 18:25:38 deraadt Exp $ */
+/* $OpenBSD: bio.h,v 1.31 2018/02/17 13:57:14 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -327,6 +327,17 @@ typedef struct bio_f_buffer_ctx_struct {
 /* Prefix and suffix callback in ASN1 BIO */
 typedef int asn1_ps_func(BIO *b, unsigned char **pbuf, int *plen, void *parg);
 
+/* BIO_METHOD accessors */
+BIO_METHOD *BIO_meth_new(int type, const char *name);
+void BIO_meth_free(BIO_METHOD *biom);
+int BIO_meth_set_write(BIO_METHOD *biom,
+    int (*write)(BIO *, const char *, int));
+int BIO_meth_set_read(BIO_METHOD *biom, int (*read)(BIO *, char *, int));
+int BIO_meth_set_puts(BIO_METHOD *biom, int (*puts)(BIO *, const char *));
+int BIO_meth_set_ctrl(BIO_METHOD *biom,
+    int long (*ctrl)(BIO *, int, long, void *));
+int BIO_meth_set_create(BIO_METHOD *biom, int (*create)(BIO *));
+int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy)(BIO *));
 
 /* connect BIO stuff */
 #define BIO_CONN_S_BEFORE		1
diff --git a/lib/libcrypto/bio/bio_meth.c b/lib/libcrypto/bio/bio_meth.c
new file mode 100644
index 00000000000..83e5254304b
--- /dev/null
+++ b/lib/libcrypto/bio/bio_meth.c
@@ -0,0 +1,82 @@
+/*	$OpenBSD: bio_meth.c,v 1.1 2018/02/17 13:57:14 tb Exp $	*/
+/*
+ * Copyright (c) 2018 Theo Buehler <tb@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdlib.h>
+
+#include <openssl/bio.h>
+
+BIO_METHOD *
+BIO_meth_new(int type, const char *name)
+{
+	BIO_METHOD *biom;
+
+	if ((biom = calloc(1, sizeof(*biom))) == NULL)
+		return NULL;
+
+	biom->type = type;
+	biom->name = name;
+
+	return biom;
+}
+
+void
+BIO_meth_free(BIO_METHOD *biom)
+{
+	free(biom);
+}
+
+int
+BIO_meth_set_write(BIO_METHOD *biom, int (*write)(BIO *, const char *, int))
+{
+	biom->bwrite = write;
+	return 1;
+}
+
+int
+BIO_meth_set_read(BIO_METHOD *biom, int (*read)(BIO *, char *, int))
+{
+	biom->bread = read;
+	return 1;
+}
+
+int
+BIO_meth_set_puts(BIO_METHOD *biom, int (*puts)(BIO *, const char *))
+{
+	biom->bputs = puts;
+	return 1;
+}
+
+int
+BIO_meth_set_ctrl(BIO_METHOD *biom, long (*ctrl)(BIO *, int, long, void *))
+{
+	biom->ctrl = ctrl;
+	return 1;
+}
+
+int
+BIO_meth_set_create(BIO_METHOD *biom, int (*create)(BIO *))
+{
+	biom->create = create;
+	return 1;
+}
+
+int
+BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy)(BIO *))
+{
+	biom->destroy = destroy;
+	return 1;
+}
-- 
2.20.1