Add functions for creating BIO_METHODs

BIO_METHODs are soon to be opaque so we need to have functions available
to set them up.

Reviewed-by: Richard Levitte <levitte@openssl.org>

crypto/bio/Makefile.in

@@ -20,14 +20,14 @@ LIBSRC= bio_lib.c bio_cb.c bio_err.c \
 	bss_file.c bss_sock.c bss_conn.c \
 	bf_null.c bf_buff.c b_print.c b_dump.c b_addr.c \
 	b_sock.c b_sock2.c bss_acpt.c bf_nbio.c bss_log.c bss_bio.c \
-	bss_dgram.c
+	bss_dgram.c bio_meth.c
 #	bf_lbuf.c
 LIBOBJ= bio_lib.o bio_cb.o bio_err.o \
 	bss_mem.o bss_null.o bss_fd.o \
 	bss_file.o bss_sock.o bss_conn.o \
 	bf_null.o bf_buff.o b_print.o b_dump.o b_addr.o \
 	b_sock.o b_sock2.o bss_acpt.o bf_nbio.o bss_log.o bss_bio.o \
-	bss_dgram.o
+	bss_dgram.o bio_meth.o
 #	bf_lbuf.o
 
 SRC= $(LIBSRC)

crypto/bio/bio_meth.c

@@ -0,0 +1,166 @@
+/* ====================================================================
+ * Copyright (c) 2016 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include "bio_lcl.h"
+
+BIO_METHOD *BIO_meth_new(int type, const char *name)
+{
+    BIO_METHOD *biom = OPENSSL_zalloc(sizeof(BIO_METHOD));
+
+    if (biom != NULL) {
+        biom->type = type;
+        biom->name = name;
+    }
+    return biom;
+}
+
+void BIO_meth_free(BIO_METHOD *biom)
+{
+    OPENSSL_free(biom);
+}
+
+int (*BIO_meth_get_write(BIO_METHOD *biom)) (BIO *, const char *, int)
+{
+    return biom->bwrite;
+}
+
+int BIO_meth_set_write(BIO_METHOD *biom,
+                       int (*write) (BIO *, const char *, int))
+{
+    biom->bwrite = write;
+    return 1;
+}
+
+int (*BIO_meth_get_read(BIO_METHOD *biom)) (BIO *, const char *, int)
+{
+    return biom->bread;
+}
+
+int BIO_meth_set_read(BIO_METHOD *biom,
+                      int (*read) (BIO *, const char *, int))
+{
+    biom->bread = read;
+    return 1;
+}
+
+int (*BIO_meth_get_puts(BIO_METHOD *biom)) (BIO *, const char *)
+{
+    return biom->bputs;
+}
+
+int BIO_meth_set_puts(BIO_METHOD *biom,
+                      int (*puts) (BIO *, const char *))
+{
+    biom->bputs = puts;
+    return 1;
+}
+
+int (*BIO_meth_get_gets(BIO_METHOD *biom)) (BIO *, char *, int)
+{
+    return biom->gets;
+}
+
+int BIO_meth_set_gets(BIO_METHOD *biom,
+                      int (*gets) (BIO *, char *, int))
+{
+    biom->bgets = gets;
+    return 1;
+}
+
+long (*BIO_meth_get_ctrl(BIO_METHOD *biom)) (BIO *, int, long, void *)
+{
+    return biom->ctrl;
+}
+
+int BIO_meth_set_ctrl(BIO_METHOD *biom,
+                      long (*ctrl) (BIO *, int, long, void *))
+{
+    biom->ctrl = ctrl;
+    return 1;
+}
+
+int (*BIO_meth_get_create(BIO_METHOD *bion)) (BIO *)
+{
+    return biom->create;
+}
+
+int BIO_meth_set_create(BIO_METHOD *biom, int (*create) (BIO *))
+{
+    biom->create = create;
+    return 1;
+}
+
+int (*BIO_meth_get_destroy(BIO_METHOD *biom)) (BIO *)
+{
+    return biom->destroy;
+}
+
+int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy) (BIO *))
+{
+    biom->destroy = destroy;
+    return 1;
+}
+
+long (*BIO_meth_get_callback_ctrl(BIO_METHOD *biom)) (BIO *, int, bio_info_cb *)
+{
+    return biom->callback_ctrl;
+}
+
+int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
+                               long (*callback_ctrl) (BIO *, int,
+                                                      bio_info_cb *))
+{
+    biom->callback_ctrl = callback_ctrl;
+    return 1;
+}

crypto/bio/build.info

@@ -5,5 +5,5 @@ SOURCE[../../libcrypto]=\
         bss_file.c bss_sock.c bss_conn.c \
         bf_null.c bf_buff.c b_print.c b_dump.c b_addr.c \
         b_sock.c b_sock2.c bss_acpt.c bf_nbio.c bss_log.c bss_bio.c \
-        bss_dgram.c \
+        bss_dgram.c bio_meth.c \
         {- $config{target} =~ /^VMS/i ? "bf_lbuf.c" : "" -}