-/* crypto/bio/bio_lib.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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 acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS 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 AUTHOR OR 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.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <errno.h>
#include <openssl/crypto.h>
+#include "bio_lcl.h"
#include "internal/cryptlib.h"
-#include <openssl/bio.h>
-#include <openssl/stack.h>
-BIO *BIO_new(BIO_METHOD *method)
+BIO *BIO_new(const BIO_METHOD *method)
{
- BIO *ret = OPENSSL_malloc(sizeof(*ret));
+ BIO *bio = OPENSSL_zalloc(sizeof(*bio));
- if (ret == NULL) {
+ if (bio == NULL) {
BIOerr(BIO_F_BIO_NEW, ERR_R_MALLOC_FAILURE);
return (NULL);
}
- if (!BIO_set(ret, method)) {
- OPENSSL_free(ret);
- ret = NULL;
- }
- return (ret);
-}
-int BIO_set(BIO *bio, BIO_METHOD *method)
-{
bio->method = method;
- bio->callback = NULL;
- bio->cb_arg = NULL;
- bio->init = 0;
bio->shutdown = 1;
- bio->flags = 0;
- bio->retry_reason = 0;
- bio->num = 0;
- bio->ptr = NULL;
- bio->prev_bio = NULL;
- bio->next_bio = NULL;
bio->references = 1;
- bio->num_read = 0L;
- bio->num_write = 0L;
- CRYPTO_new_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
- if (method->create != NULL)
- if (!method->create(bio)) {
- CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
- return (0);
- }
- return (1);
+
+ if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data))
+ goto err;
+
+ bio->lock = CRYPTO_THREAD_lock_new();
+ if (bio->lock == NULL) {
+ BIOerr(BIO_F_BIO_NEW, ERR_R_MALLOC_FAILURE);
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
+ goto err;
+ }
+
+ if (method->create != NULL && !method->create(bio)) {
+ BIOerr(BIO_F_BIO_NEW, ERR_R_INIT_FAIL);
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
+ CRYPTO_THREAD_lock_free(bio->lock);
+ goto err;
+ }
+
+ return bio;
+
+err:
+ OPENSSL_free(bio);
+ return NULL;
}
int BIO_free(BIO *a)
int i;
if (a == NULL)
- return (0);
+ return 0;
- i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_BIO);
-#ifdef REF_PRINT
- REF_PRINT("BIO", a);
-#endif
+ if (CRYPTO_atomic_add(&a->references, -1, &i, a->lock) <= 0)
+ return 0;
+
+ REF_PRINT_COUNT("BIO", a);
if (i > 0)
- return (1);
-#ifdef REF_CHECK
- if (i < 0) {
- fprintf(stderr, "BIO_free, bad reference count\n");
- abort();
- }
-#endif
+ return 1;
+ REF_ASSERT_ISNT(i < 0);
if ((a->callback != NULL) &&
((i = (int)a->callback(a, BIO_CB_FREE, NULL, 0, 0L, 1L)) <= 0))
- return (i);
-
- CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data);
+ return i;
if ((a->method != NULL) && (a->method->destroy != NULL))
a->method->destroy(a);
+
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, a, &a->ex_data);
+
+ CRYPTO_THREAD_lock_free(a->lock);
+
OPENSSL_free(a);
- return (1);
+
+ return 1;
+}
+
+void BIO_set_data(BIO *a, void *ptr)
+{
+ a->ptr = ptr;
+}
+
+void *BIO_get_data(BIO *a)
+{
+ return a->ptr;
+}
+
+void BIO_set_init(BIO *a, int init)
+{
+ a->init = init;
+}
+
+int BIO_get_init(BIO *a)
+{
+ return a->init;
+}
+
+void BIO_set_shutdown(BIO *a, int shut)
+{
+ a->shutdown = shut;
+}
+
+int BIO_get_shutdown(BIO *a)
+{
+ return a->shutdown;
}
void BIO_vfree(BIO *a)
BIO_free(a);
}
+int BIO_up_ref(BIO *a)
+{
+ int i;
+
+ if (CRYPTO_atomic_add(&a->references, 1, &i, a->lock) <= 0)
+ return 0;
+
+ REF_PRINT_COUNT("BIO", a);
+ REF_ASSERT_ISNT(i < 2);
+ return ((i > 1) ? 1 : 0);
+}
+
void BIO_clear_flags(BIO *b, int flags)
{
b->flags &= ~flags;
return (BIO_ctrl(b, cmd, larg, (char *)&i));
}
-char *BIO_ptr_ctrl(BIO *b, int cmd, long larg)
+void *BIO_ptr_ctrl(BIO *b, int cmd, long larg)
{
- char *p = NULL;
+ void *p = NULL;
if (BIO_ctrl(b, cmd, larg, (char *)&p) <= 0)
return (NULL);
return (bio->retry_reason);
}
+void BIO_set_retry_reason(BIO *bio, int reason)
+{
+ bio->retry_reason = reason;
+}
+
BIO *BIO_find_type(BIO *bio, int type)
{
int mt, mask;
return b->next_bio;
}
+void BIO_set_next(BIO *b, BIO *next)
+{
+ b->next_bio = next;
+}
+
void BIO_free_all(BIO *bio)
{
BIO *b;
return bio->num_write;
return 0;
}
+
+void bio_free_ex_data(BIO *bio)
+{
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_BIO, bio, &bio->ex_data);
+}
+
+void bio_cleanup(void)
+{
+#ifndef OPENSSL_NO_SOCK
+ bio_sock_cleanup_int();
+ CRYPTO_THREAD_lock_free(bio_lookup_lock);
+ bio_lookup_lock = NULL;
+#endif
+ CRYPTO_THREAD_lock_free(bio_type_lock);
+ bio_type_lock = NULL;
+}
projects / openssl.git / blobdiff