| /* 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. |
| * |
| * 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.] |
| */ |
| /* ==================================================================== |
| * Copyright (c) 1998-2001 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). */ |
| |
| #ifndef OPENSSL_HEADER_EX_DATA_H |
| #define OPENSSL_HEADER_EX_DATA_H |
| |
| #include <openssl/base.h> |
| |
| #include <openssl/stack.h> |
| |
| #if defined(__cplusplus) |
| extern "C" { |
| #endif |
| |
| |
| /* ex_data is a mechanism for associating arbitrary extra data with objects. |
| * For each type of object that supports ex_data, different users can be |
| * assigned indexes in which to store their data. Each index has callback |
| * functions that are called when an object of that type is freed or |
| * duplicated. */ |
| |
| |
| typedef struct crypto_ex_data_st CRYPTO_EX_DATA; |
| |
| |
| /* Type-specific functions. |
| * |
| * Each type that supports ex_data provides three functions: */ |
| |
| #if 0 /* Sample */ |
| |
| /* TYPE_get_ex_new_index allocates a new index for |TYPE|. An optional |
| * |free_func| argument may be provided which is called when the owning object |
| * is destroyed. See |CRYPTO_EX_free| for details. The |argl| and |argp| |
| * arguments are opaque values that are passed to the callback. It returns the |
| * new index or a negative number on error. */ |
| OPENSSL_EXPORT int TYPE_get_ex_new_index(long argl, void *argp, |
| CRYPTO_EX_unused *unused, |
| CRYPTO_EX_dup *dup_unused, |
| CRYPTO_EX_free *free_func); |
| |
| /* TYPE_set_ex_data sets an extra data pointer on |t|. The |index| argument |
| * should have been returned from a previous call to |TYPE_get_ex_new_index|. */ |
| OPENSSL_EXPORT int TYPE_set_ex_data(TYPE *t, int index, void *arg); |
| |
| /* TYPE_get_ex_data returns an extra data pointer for |t|, or NULL if no such |
| * pointer exists. The |index| argument should have been returned from a |
| * previous call to |TYPE_get_ex_new_index|. */ |
| OPENSSL_EXPORT void *TYPE_get_ex_data(const TYPE *t, int index); |
| |
| #endif /* Sample */ |
| |
| |
| /* Callback types. */ |
| |
| /* CRYPTO_EX_free is a callback function that is called when an object of the |
| * class with extra data pointers is being destroyed. For example, if this |
| * callback has been passed to |SSL_get_ex_new_index| then it may be called each |
| * time an |SSL*| is destroyed. |
| * |
| * The callback is passed the new object (i.e. the |SSL*|) in |parent|. The |
| * arguments |argl| and |argp| contain opaque values that were given to |
| * |CRYPTO_get_ex_new_index|. The callback should return one on success, but |
| * the value is ignored. |
| * |
| * This callback may be called with a NULL value for |ptr| if |parent| has no |
| * value set for this index. However, the callbacks may also be skipped entirely |
| * if no extra data pointers are set on |parent| at all. */ |
| typedef void CRYPTO_EX_free(void *parent, void *ptr, CRYPTO_EX_DATA *ad, |
| int index, long argl, void *argp); |
| |
| |
| /* Deprecated functions. */ |
| |
| /* CRYPTO_cleanup_all_ex_data does nothing. */ |
| OPENSSL_EXPORT void CRYPTO_cleanup_all_ex_data(void); |
| |
| /* CRYPTO_EX_dup is a legacy callback function type which is ignored. */ |
| typedef int CRYPTO_EX_dup(CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from, |
| void **from_d, int index, long argl, void *argp); |
| |
| |
| /* Private structures. */ |
| |
| /* CRYPTO_EX_unused is a placeholder for an unused callback. It is aliased to |
| * int to ensure non-NULL callers fail to compile rather than fail silently. */ |
| typedef int CRYPTO_EX_unused; |
| |
| struct crypto_ex_data_st { |
| STACK_OF(void) *sk; |
| }; |
| |
| |
| #if defined(__cplusplus) |
| } /* extern C */ |
| #endif |
| |
| #endif /* OPENSSL_HEADER_EX_DATA_H */ |
