Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/ex_data.c

Index: openssl/crypto/ex_data.c
diff --git a/openssl/crypto/ex_data.c b/openssl/crypto/ex_data.c
deleted file mode 100644
index e2bc8298d0a7a6f1b45e1a3cfe1c7248c00a9919..0000000000000000000000000000000000000000
--- a/openssl/crypto/ex_data.c
+++ /dev/null
@@ -1,636 +0,0 @@
-/* crypto/ex_data.c */
-
-/*
- * Overhaul notes;
- *
- * This code is now *mostly* thread-safe. It is now easier to understand in what
- * ways it is safe and in what ways it is not, which is an improvement. Firstly,
- * all per-class stacks and index-counters for ex_data are stored in the same
- * global LHASH table (keyed by class). This hash table uses locking for all
- * access with the exception of CRYPTO_cleanup_all_ex_data(), which must only be
- * called when no other threads can possibly race against it (even if it was
- * locked, the race would mean it's possible the hash table might have been
- * recreated after the cleanup). As classes can only be added to the hash table,
- * and within each class, the stack of methods can only be incremented, the
- * locking mechanics are simpler than they would otherwise be. For example, the
- * new/dup/free ex_data functions will lock the hash table, copy the method
- * pointers it needs from the relevant class, then unlock the hash table before
- * actually applying those method pointers to the task of the new/dup/free
- * operations. As they can't be removed from the method-stack, only
- * supplemented, there's no race conditions associated with using them outside
- * the lock. The get/set_ex_data functions are not locked because they do not
- * involve this global state at all - they operate directly with a previously
- * obtained per-class method index and a particular "ex_data" variable. These
- * variables are usually instantiated per-context (eg. each RSA structure has
- * one) so locking on read/write access to that variable can be locked locally
- * if required (eg. using the "RSA" lock to synchronise access to a
- * per-RSA-structure ex_data variable if required).
- * [Geoff]
- */
-
-/* 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).
- *
- */
-
-#include "cryptlib.h"
-#include <openssl/lhash.h>
-
-/* What an "implementation of ex_data functionality" looks like */
-struct st_CRYPTO_EX_DATA_IMPL
-	{
-	/*********************/
-	/* GLOBAL OPERATIONS */
-	/* Return a new class index */
-	int (*cb_new_class)(void);
-	/* Cleanup all state used by the implementation */
-	void (*cb_cleanup)(void);
-	/************************/
-	/* PER-CLASS OPERATIONS */
-	/* Get a new method index within a class */
-	int (*cb_get_new_index)(int class_index, long argl, void *argp,
-			CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
-			CRYPTO_EX_free *free_func);
-	/* Initialise a new CRYPTO_EX_DATA of a given class */
-	int (*cb_new_ex_data)(int class_index, void *obj,
-			CRYPTO_EX_DATA *ad);
-	/* Duplicate a CRYPTO_EX_DATA of a given class onto a copy */
-	int (*cb_dup_ex_data)(int class_index, CRYPTO_EX_DATA *to,
-			CRYPTO_EX_DATA *from);
-	/* Cleanup a CRYPTO_EX_DATA of a given class */
-	void (*cb_free_ex_data)(int class_index, void *obj,
-			CRYPTO_EX_DATA *ad);
-	};
-
-/* The implementation we use at run-time */
-static const CRYPTO_EX_DATA_IMPL *impl = NULL;
-
-/* To call "impl" functions, use this macro rather than referring to 'impl' directly, eg.
- * EX_IMPL(get_new_index)(...); */
-#define EX_IMPL(a) impl->cb_##a
-
-/* Predeclare the "default" ex_data implementation */
-static int int_new_class(void);
-static void int_cleanup(void);
-static int int_get_new_index(int class_index, long argl, void *argp,
-		CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
-		CRYPTO_EX_free *free_func);
-static int int_new_ex_data(int class_index, void *obj,
-		CRYPTO_EX_DATA *ad);
-static int int_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
-		CRYPTO_EX_DATA *from);
-static void int_free_ex_data(int class_index, void *obj,
-		CRYPTO_EX_DATA *ad);
-static CRYPTO_EX_DATA_IMPL impl_default =
-	{
-	int_new_class,
-	int_cleanup,
-	int_get_new_index,
-	int_new_ex_data,
-	int_dup_ex_data,
-	int_free_ex_data
-	};
-
-/* Internal function that checks whether "impl" is set and if not, sets it to
- * the default. */
-static void impl_check(void)
-	{
-	CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
-	if(!impl)
-		impl = &impl_default;
-	CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
-	}
-/* A macro wrapper for impl_check that first uses a non-locked test before
- * invoking the function (which checks again inside a lock). */
-#define IMPL_CHECK if(!impl) impl_check();
-
-/* API functions to get/set the "ex_data" implementation */
-const CRYPTO_EX_DATA_IMPL *CRYPTO_get_ex_data_implementation(void)
-	{
-	IMPL_CHECK
-	return impl;
-	}
-int CRYPTO_set_ex_data_implementation(const CRYPTO_EX_DATA_IMPL *i)
-	{
-	int toret = 0;
-	CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
-	if(!impl)
-		{
-		impl = i;
-		toret = 1;
-		}
-	CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
-	return toret;
-	}
-
-/****************************************************************************/
-/* Interal (default) implementation of "ex_data" support. API functions are
- * further down. */
-
-/* The type that represents what each "class" used to implement locally. A STACK
- * of CRYPTO_EX_DATA_FUNCS plus a index-counter. The 'class_index' is the global
- * value representing the class that is used to distinguish these items. */
-typedef struct st_ex_class_item {
-	int class_index;
-	STACK_OF(CRYPTO_EX_DATA_FUNCS) *meth;
-	int meth_num;
-} EX_CLASS_ITEM;
-
-/* When assigning new class indexes, this is our counter */
-static int ex_class = CRYPTO_EX_INDEX_USER;
-
-/* The global hash table of EX_CLASS_ITEM items */
-DECLARE_LHASH_OF(EX_CLASS_ITEM);
-static LHASH_OF(EX_CLASS_ITEM) *ex_data = NULL;
-
-/* The callbacks required in the "ex_data" hash table */
-static unsigned long ex_class_item_hash(const EX_CLASS_ITEM *a)
-	{
-	return a->class_index;
-	}
-static IMPLEMENT_LHASH_HASH_FN(ex_class_item, EX_CLASS_ITEM)
-
-static int ex_class_item_cmp(const EX_CLASS_ITEM *a, const EX_CLASS_ITEM *b)
-	{
-	return a->class_index - b->class_index;
-	}
-static IMPLEMENT_LHASH_COMP_FN(ex_class_item, EX_CLASS_ITEM)
-
-/* Internal functions used by the "impl_default" implementation to access the
- * state */
-
-static int ex_data_check(void)
-	{
-	int toret = 1;
-	CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
-	if(!ex_data
-	   && (ex_data = lh_EX_CLASS_ITEM_new()) == NULL)
-		toret = 0;
-	CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
-	return toret;
-	}
-/* This macros helps reduce the locking from repeated checks because the
- * ex_data_check() function checks ex_data again inside a lock. */
-#define EX_DATA_CHECK(iffail) if(!ex_data && !ex_data_check()) {iffail}
-
-/* This "inner" callback is used by the callback function that follows it */
-static void def_cleanup_util_cb(CRYPTO_EX_DATA_FUNCS *funcs)
-	{
-	OPENSSL_free(funcs);
-	}
-
-/* This callback is used in lh_doall to destroy all EX_CLASS_ITEM values from
- * "ex_data" prior to the ex_data hash table being itself destroyed. Doesn't do
- * any locking. */
-static void def_cleanup_cb(void *a_void)
-	{
-	EX_CLASS_ITEM *item = (EX_CLASS_ITEM *)a_void;
-	sk_CRYPTO_EX_DATA_FUNCS_pop_free(item->meth, def_cleanup_util_cb);
-	OPENSSL_free(item);
-	}
-
-/* Return the EX_CLASS_ITEM from the "ex_data" hash table that corresponds to a
- * given class. Handles locking. */
-static EX_CLASS_ITEM *def_get_class(int class_index)
-	{
-	EX_CLASS_ITEM d, *p, *gen;
-	EX_DATA_CHECK(return NULL;)
-	d.class_index = class_index;
-	CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
-	p = lh_EX_CLASS_ITEM_retrieve(ex_data, &d);
-	if(!p)
-		{
-		gen = OPENSSL_malloc(sizeof(EX_CLASS_ITEM));
-		if(gen)
-			{
-			gen->class_index = class_index;
-			gen->meth_num = 0;
-			gen->meth = sk_CRYPTO_EX_DATA_FUNCS_new_null();
-			if(!gen->meth)
-				OPENSSL_free(gen);
-			else
-				{
-				/* Because we're inside the ex_data lock, the
-				 * return value from the insert will be NULL */
-				(void)lh_EX_CLASS_ITEM_insert(ex_data, gen);
-				p = gen;
-				}
-			}
-		}
-	CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
-	if(!p)
-		CRYPTOerr(CRYPTO_F_DEF_GET_CLASS,ERR_R_MALLOC_FAILURE);
-	return p;
-	}
-
-/* Add a new method to the given EX_CLASS_ITEM and return the corresponding
- * index (or -1 for error). Handles locking. */
-static int def_add_index(EX_CLASS_ITEM *item, long argl, void *argp,
-		CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
-		CRYPTO_EX_free *free_func)
-	{
-	int toret = -1;
-	CRYPTO_EX_DATA_FUNCS *a = (CRYPTO_EX_DATA_FUNCS *)OPENSSL_malloc(
-					sizeof(CRYPTO_EX_DATA_FUNCS));
-	if(!a)
-		{
-		CRYPTOerr(CRYPTO_F_DEF_ADD_INDEX,ERR_R_MALLOC_FAILURE);
-		return -1;
-		}
-	a->argl=argl;
-	a->argp=argp;
-	a->new_func=new_func;
-	a->dup_func=dup_func;
-	a->free_func=free_func;
-	CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
-	while (sk_CRYPTO_EX_DATA_FUNCS_num(item->meth) <= item->meth_num)
-		{
-		if (!sk_CRYPTO_EX_DATA_FUNCS_push(item->meth, NULL))
-			{
-			CRYPTOerr(CRYPTO_F_DEF_ADD_INDEX,ERR_R_MALLOC_FAILURE);
-			OPENSSL_free(a);
-			goto err;
-			}
-		}
-	toret = item->meth_num++;
-	(void)sk_CRYPTO_EX_DATA_FUNCS_set(item->meth, toret, a);
-err:
-	CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
-	return toret;
-	}
-
-/**************************************************************/
-/* The functions in the default CRYPTO_EX_DATA_IMPL structure */
-
-static int int_new_class(void)
-	{
-	int toret;
-	CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
-	toret = ex_class++;
-	CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
-	return toret;
-	}
-
-static void int_cleanup(void)
-	{
-	EX_DATA_CHECK(return;)
-	lh_EX_CLASS_ITEM_doall(ex_data, def_cleanup_cb);
-	lh_EX_CLASS_ITEM_free(ex_data);
-	ex_data = NULL;
-	impl = NULL;
-	}
-
-static int int_get_new_index(int class_index, long argl, void *argp,
-		CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
-		CRYPTO_EX_free *free_func)
-	{
-	EX_CLASS_ITEM *item = def_get_class(class_index);
-	if(!item)
-		return -1;
-	return def_add_index(item, argl, argp, new_func, dup_func, free_func);
-	}
-
-/* Thread-safe by copying a class's array of "CRYPTO_EX_DATA_FUNCS" entries in
- * the lock, then using them outside the lock. NB: Thread-safety only applies to
- * the global "ex_data" state (ie. class definitions), not thread-safe on 'ad'
- * itself. */
-static int int_new_ex_data(int class_index, void *obj,
-		CRYPTO_EX_DATA *ad)
-	{
-	int mx,i;
-	void *ptr;
-	CRYPTO_EX_DATA_FUNCS **storage = NULL;
-	EX_CLASS_ITEM *item = def_get_class(class_index);
-	if(!item)
-		/* error is already set */
-		return 0;
-	ad->sk = NULL;
-	CRYPTO_r_lock(CRYPTO_LOCK_EX_DATA);
-	mx = sk_CRYPTO_EX_DATA_FUNCS_num(item->meth);
-	if(mx > 0)
-		{
-		storage = OPENSSL_malloc(mx * sizeof(CRYPTO_EX_DATA_FUNCS*));
-		if(!storage)
-			goto skip;
-		for(i = 0; i < mx; i++)
-			storage[i] = sk_CRYPTO_EX_DATA_FUNCS_value(item->meth,i);
-		}
-skip:
-	CRYPTO_r_unlock(CRYPTO_LOCK_EX_DATA);
-	if((mx > 0) && !storage)
-		{
-		CRYPTOerr(CRYPTO_F_INT_NEW_EX_DATA,ERR_R_MALLOC_FAILURE);
-		return 0;
-		}
-	for(i = 0; i < mx; i++)
-		{
-		if(storage[i] && storage[i]->new_func)
-			{
-			ptr = CRYPTO_get_ex_data(ad, i);
-			storage[i]->new_func(obj,ptr,ad,i,
-				storage[i]->argl,storage[i]->argp);
-			}
-		}
-	if(storage)
-		OPENSSL_free(storage);
-	return 1;
-	}
-
-/* Same thread-safety notes as for "int_new_ex_data" */
-static int int_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
-		CRYPTO_EX_DATA *from)
-	{
-	int mx, j, i;
-	char *ptr;
-	CRYPTO_EX_DATA_FUNCS **storage = NULL;
-	EX_CLASS_ITEM *item;
-	if(!from->sk)
-		/* 'to' should be "blank" which *is* just like 'from' */
-		return 1;
-	if((item = def_get_class(class_index)) == NULL)
-		return 0;
-	CRYPTO_r_lock(CRYPTO_LOCK_EX_DATA);
-	mx = sk_CRYPTO_EX_DATA_FUNCS_num(item->meth);
-	j = sk_void_num(from->sk);
-	if(j < mx)
-		mx = j;
-	if(mx > 0)
-		{
-		storage = OPENSSL_malloc(mx * sizeof(CRYPTO_EX_DATA_FUNCS*));
-		if(!storage)
-			goto skip;
-		for(i = 0; i < mx; i++)
-			storage[i] = sk_CRYPTO_EX_DATA_FUNCS_value(item->meth,i);
-		}
-skip:
-	CRYPTO_r_unlock(CRYPTO_LOCK_EX_DATA);
-	if((mx > 0) && !storage)
-		{
-		CRYPTOerr(CRYPTO_F_INT_DUP_EX_DATA,ERR_R_MALLOC_FAILURE);
-		return 0;
-		}
-	for(i = 0; i < mx; i++)
-		{
-		ptr = CRYPTO_get_ex_data(from, i);
-		if(storage[i] && storage[i]->dup_func)
-			storage[i]->dup_func(to,from,&ptr,i,
-				storage[i]->argl,storage[i]->argp);
-		CRYPTO_set_ex_data(to,i,ptr);
-		}
-	if(storage)
-		OPENSSL_free(storage);
-	return 1;
-	}
-
-/* Same thread-safety notes as for "int_new_ex_data" */
-static void int_free_ex_data(int class_index, void *obj,
-		CRYPTO_EX_DATA *ad)
-	{
-	int mx,i;
-	EX_CLASS_ITEM *item;
-	void *ptr;
-	CRYPTO_EX_DATA_FUNCS **storage = NULL;
-	if((item = def_get_class(class_index)) == NULL)
-		return;
-	CRYPTO_r_lock(CRYPTO_LOCK_EX_DATA);
-	mx = sk_CRYPTO_EX_DATA_FUNCS_num(item->meth);
-	if(mx > 0)
-		{
-		storage = OPENSSL_malloc(mx * sizeof(CRYPTO_EX_DATA_FUNCS*));
-		if(!storage)
-			goto skip;
-		for(i = 0; i < mx; i++)
-			storage[i] = sk_CRYPTO_EX_DATA_FUNCS_value(item->meth,i);
-		}
-skip:
-	CRYPTO_r_unlock(CRYPTO_LOCK_EX_DATA);
-	if((mx > 0) && !storage)
-		{
-		CRYPTOerr(CRYPTO_F_INT_FREE_EX_DATA,ERR_R_MALLOC_FAILURE);
-		return;
-		}
-	for(i = 0; i < mx; i++)
-		{
-		if(storage[i] && storage[i]->free_func)
-			{
-			ptr = CRYPTO_get_ex_data(ad,i);
-			storage[i]->free_func(obj,ptr,ad,i,
-				storage[i]->argl,storage[i]->argp);
-			}
-		}
-	if(storage)
-		OPENSSL_free(storage);
-	if(ad->sk)
-		{
-		sk_void_free(ad->sk);
-		ad->sk=NULL;
-		}
-	}
-
-/********************************************************************/
-/* API functions that defer all "state" operations to the "ex_data"
- * implementation we have set. */
-
-/* Obtain an index for a new class (not the same as getting a new index within
- * an existing class - this is actually getting a new *class*) */
-int CRYPTO_ex_data_new_class(void)
-	{
-	IMPL_CHECK
-	return EX_IMPL(new_class)();
-	}
-
-/* Release all "ex_data" state to prevent memory leaks. This can't be made
- * thread-safe without overhauling a lot of stuff, and shouldn't really be
- * called under potential race-conditions anyway (it's for program shutdown
- * after all). */
-void CRYPTO_cleanup_all_ex_data(void)
-	{
-	IMPL_CHECK
-	EX_IMPL(cleanup)();
-	}
-
-/* Inside an existing class, get/register a new index. */
-int CRYPTO_get_ex_new_index(int class_index, long argl, void *argp,
-		CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
-		CRYPTO_EX_free *free_func)
-	{
-	int ret = -1;
-
-	IMPL_CHECK
-	ret = EX_IMPL(get_new_index)(class_index,
-			argl, argp, new_func, dup_func, free_func);
-	return ret;
-	}
-
-/* Initialise a new CRYPTO_EX_DATA for use in a particular class - including
- * calling new() callbacks for each index in the class used by this variable */
-int CRYPTO_new_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad)
-	{
-	IMPL_CHECK
-	return EX_IMPL(new_ex_data)(class_index, obj, ad);
-	}
-
-/* Duplicate a CRYPTO_EX_DATA variable - including calling dup() callbacks for
- * each index in the class used by this variable */
-int CRYPTO_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
-	     CRYPTO_EX_DATA *from)
-	{
-	IMPL_CHECK
-	return EX_IMPL(dup_ex_data)(class_index, to, from);
-	}
-
-/* Cleanup a CRYPTO_EX_DATA variable - including calling free() callbacks for
- * each index in the class used by this variable */
-void CRYPTO_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad)
-	{
-	IMPL_CHECK
-	EX_IMPL(free_ex_data)(class_index, obj, ad);
-	}
-
-/* For a given CRYPTO_EX_DATA variable, set the value corresponding to a
- * particular index in the class used by this variable */
-int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val)
-	{
-	int i;
-
-	if (ad->sk == NULL)
-		{
-		if ((ad->sk=sk_void_new_null()) == NULL)
-			{
-			CRYPTOerr(CRYPTO_F_CRYPTO_SET_EX_DATA,ERR_R_MALLOC_FAILURE);
-			return(0);
-			}
-		}
-	i=sk_void_num(ad->sk);
-
-	while (i <= idx)
-		{
-		if (!sk_void_push(ad->sk,NULL))
-			{
-			CRYPTOerr(CRYPTO_F_CRYPTO_SET_EX_DATA,ERR_R_MALLOC_FAILURE);
-			return(0);
-			}
-		i++;
-		}
-	sk_void_set(ad->sk,idx,val);
-	return(1);
-	}
-
-/* For a given CRYPTO_EX_DATA_ variable, get the value corresponding to a
- * particular index in the class used by this variable */
-void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx)
-	{
-	if (ad->sk == NULL)
-		return(0);
-	else if (idx >= sk_void_num(ad->sk))
-		return(0);
-	else
-		return(sk_void_value(ad->sk,idx));
-	}
-
-IMPLEMENT_STACK_OF(CRYPTO_EX_DATA_FUNCS)