Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/engine/eng_table.c

Index: openssl/crypto/engine/eng_table.c
diff --git a/openssl/crypto/engine/eng_table.c b/openssl/crypto/engine/eng_table.c
deleted file mode 100644
index 4fde9481852c0e47c7d2062182b72207db01cc21..0000000000000000000000000000000000000000
--- a/openssl/crypto/engine/eng_table.c
+++ /dev/null
@@ -1,351 +0,0 @@
-/* ====================================================================
- * Copyright (c) 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
- *    licensing@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/evp.h>
-#include <openssl/lhash.h>
-#include "eng_int.h"
-
-/* The type of the items in the table */
-typedef struct st_engine_pile
-	{
-	/* The 'nid' of this algorithm/mode */
-	int nid;
-	/* ENGINEs that implement this algorithm/mode. */
-	STACK_OF(ENGINE) *sk;
-	/* The default ENGINE to perform this algorithm/mode. */
-	ENGINE *funct;
-	/* Zero if 'sk' is newer than the cached 'funct', non-zero otherwise */
-	int uptodate;
-	} ENGINE_PILE;
-
-DECLARE_LHASH_OF(ENGINE_PILE);
-
-/* The type exposed in eng_int.h */
-struct st_engine_table
-	{
-	LHASH_OF(ENGINE_PILE) piles;
-	}; /* ENGINE_TABLE */
-
-
-typedef struct st_engine_pile_doall
-	{
-	engine_table_doall_cb *cb;
-	void *arg;
-	} ENGINE_PILE_DOALL;
-	
-
-/* Global flags (ENGINE_TABLE_FLAG_***). */
-static unsigned int table_flags = 0;
-
-/* API function manipulating 'table_flags' */
-unsigned int ENGINE_get_table_flags(void)
-	{
-	return table_flags;
-	}
-
-void ENGINE_set_table_flags(unsigned int flags)
-	{
-	table_flags = flags;
-	}
-
-/* Internal functions for the "piles" hash table */
-static unsigned long engine_pile_hash(const ENGINE_PILE *c)
-	{
-	return c->nid;
-	}
-
-static int engine_pile_cmp(const ENGINE_PILE *a, const ENGINE_PILE *b)
-	{
-	return a->nid - b->nid;
-	}
-static IMPLEMENT_LHASH_HASH_FN(engine_pile, ENGINE_PILE)
-static IMPLEMENT_LHASH_COMP_FN(engine_pile, ENGINE_PILE)
-
-static int int_table_check(ENGINE_TABLE **t, int create)
-	{
-	LHASH_OF(ENGINE_PILE) *lh;
-
-	if(*t) return 1;
-	if(!create) return 0;
-	if((lh = lh_ENGINE_PILE_new()) == NULL)
-		return 0;
-	*t = (ENGINE_TABLE *)lh;
-	return 1;
-	}
-
-/* Privately exposed (via eng_int.h) functions for adding and/or removing
- * ENGINEs from the implementation table */
-int engine_table_register(ENGINE_TABLE **table, ENGINE_CLEANUP_CB *cleanup,
-		ENGINE *e, const int *nids, int num_nids, int setdefault)
-	{
-	int ret = 0, added = 0;
-	ENGINE_PILE tmplate, *fnd;
-	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
-	if(!(*table))
-		added = 1;
-	if(!int_table_check(table, 1))
-		goto end;
-	if(added)
-		/* The cleanup callback needs to be added */
-		engine_cleanup_add_first(cleanup);
-	while(num_nids--)
-		{
-		tmplate.nid = *nids;
-		fnd = lh_ENGINE_PILE_retrieve(&(*table)->piles, &tmplate);
-		if(!fnd)
-			{
-			fnd = OPENSSL_malloc(sizeof(ENGINE_PILE));
-			if(!fnd) goto end;
-			fnd->uptodate = 1;
-			fnd->nid = *nids;
-			fnd->sk = sk_ENGINE_new_null();
-			if(!fnd->sk)
-				{
-				OPENSSL_free(fnd);
-				goto end;
-				}
-			fnd->funct = NULL;
-			(void)lh_ENGINE_PILE_insert(&(*table)->piles, fnd);
-			}
-		/* A registration shouldn't add duplciate entries */
-		(void)sk_ENGINE_delete_ptr(fnd->sk, e);
-		/* if 'setdefault', this ENGINE goes to the head of the list */
-		if(!sk_ENGINE_push(fnd->sk, e))
-			goto end;
-		/* "touch" this ENGINE_PILE */
-		fnd->uptodate = 0;
-		if(setdefault)
-			{
-			if(!engine_unlocked_init(e))
-				{
-				ENGINEerr(ENGINE_F_ENGINE_TABLE_REGISTER,
-						ENGINE_R_INIT_FAILED);
-				goto end;
-				}
-			if(fnd->funct)
-				engine_unlocked_finish(fnd->funct, 0);
-			fnd->funct = e;
-			fnd->uptodate = 1;
-			}
-		nids++;
-		}
-	ret = 1;
-end:
-	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
-	return ret;
-	}
-static void int_unregister_cb_doall_arg(ENGINE_PILE *pile, ENGINE *e)
-	{
-	int n;
-	/* Iterate the 'c->sk' stack removing any occurance of 'e' */
-	while((n = sk_ENGINE_find(pile->sk, e)) >= 0)
-		{
-		(void)sk_ENGINE_delete(pile->sk, n);
-		pile->uptodate = 0;
-		}
-	if(pile->funct == e)
-		{
-		engine_unlocked_finish(e, 0);
-		pile->funct = NULL;
-		}
-	}
-static IMPLEMENT_LHASH_DOALL_ARG_FN(int_unregister_cb, ENGINE_PILE, ENGINE)
-
-void engine_table_unregister(ENGINE_TABLE **table, ENGINE *e)
-	{
-	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
-	if(int_table_check(table, 0))
-		lh_ENGINE_PILE_doall_arg(&(*table)->piles,
-					 LHASH_DOALL_ARG_FN(int_unregister_cb),
-					 ENGINE, e);
-	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
-	}
-
-static void int_cleanup_cb_doall(ENGINE_PILE *p)
-	{
-	sk_ENGINE_free(p->sk);
-	if(p->funct)
-		engine_unlocked_finish(p->funct, 0);
-	OPENSSL_free(p);
-	}
-static IMPLEMENT_LHASH_DOALL_FN(int_cleanup_cb, ENGINE_PILE)
-
-void engine_table_cleanup(ENGINE_TABLE **table)
-	{
-	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
-	if(*table)
-		{
-		lh_ENGINE_PILE_doall(&(*table)->piles,
-				     LHASH_DOALL_FN(int_cleanup_cb));
-		lh_ENGINE_PILE_free(&(*table)->piles);
-		*table = NULL;
-		}
-	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
-	}
-
-/* return a functional reference for a given 'nid' */
-#ifndef ENGINE_TABLE_DEBUG
-ENGINE *engine_table_select(ENGINE_TABLE **table, int nid)
-#else
-ENGINE *engine_table_select_tmp(ENGINE_TABLE **table, int nid, const char *f, int l)
-#endif
-	{
-	ENGINE *ret = NULL;
-	ENGINE_PILE tmplate, *fnd=NULL;
-	int initres, loop = 0;
-
-	if(!(*table))
-		{
-#ifdef ENGINE_TABLE_DEBUG
-		fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, nothing "
-			"registered!\n", f, l, nid);
-#endif
-		return NULL;
-		}
-	ERR_set_mark();
-	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
-	/* Check again inside the lock otherwise we could race against cleanup
-	 * operations. But don't worry about a fprintf(stderr). */
-	if(!int_table_check(table, 0)) goto end;
-	tmplate.nid = nid;
-	fnd = lh_ENGINE_PILE_retrieve(&(*table)->piles, &tmplate);
-	if(!fnd) goto end;
-	if(fnd->funct && engine_unlocked_init(fnd->funct))
-		{
-#ifdef ENGINE_TABLE_DEBUG
-		fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, using "
-			"ENGINE '%s' cached\n", f, l, nid, fnd->funct->id);
-#endif
-		ret = fnd->funct;
-		goto end;
-		}
-	if(fnd->uptodate)
-		{
-		ret = fnd->funct;
-		goto end;
-		}
-trynext:
-	ret = sk_ENGINE_value(fnd->sk, loop++);
-	if(!ret)
-		{
-#ifdef ENGINE_TABLE_DEBUG
-		fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, no "
-				"registered implementations would initialise\n",
-				f, l, nid);
-#endif
-		goto end;
-		}
-	/* Try to initialise the ENGINE? */
-	if((ret->funct_ref > 0) || !(table_flags & ENGINE_TABLE_FLAG_NOINIT))
-		initres = engine_unlocked_init(ret);
-	else
-		initres = 0;
-	if(initres)
-		{
-		/* Update 'funct' */
-		if((fnd->funct != ret) && engine_unlocked_init(ret))
-			{
-			/* If there was a previous default we release it. */
-			if(fnd->funct)
-				engine_unlocked_finish(fnd->funct, 0);
-			fnd->funct = ret;
-#ifdef ENGINE_TABLE_DEBUG
-			fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, "
-				"setting default to '%s'\n", f, l, nid, ret->id);
-#endif
-			}
-#ifdef ENGINE_TABLE_DEBUG
-		fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, using "
-				"newly initialised '%s'\n", f, l, nid, ret->id);
-#endif
-		goto end;
-		}
-	goto trynext;
-end:
-	/* If it failed, it is unlikely to succeed again until some future
-	 * registrations have taken place. In all cases, we cache. */
-	if(fnd) fnd->uptodate = 1;
-#ifdef ENGINE_TABLE_DEBUG
-	if(ret)
-		fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, caching "
-				"ENGINE '%s'\n", f, l, nid, ret->id);
-	else
-		fprintf(stderr, "engine_table_dbg: %s:%d, nid=%d, caching "
-				"'no matching ENGINE'\n", f, l, nid);
-#endif
-	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
-	/* Whatever happened, any failed init()s are not failures in this
-	 * context, so clear our error state. */
-	ERR_pop_to_mark();
-	return ret;
-	}
-
-/* Table enumeration */
-
-static void int_cb_doall_arg(ENGINE_PILE *pile, ENGINE_PILE_DOALL *dall)
-	{
-	dall->cb(pile->nid, pile->sk, pile->funct, dall->arg);
-	}
-static IMPLEMENT_LHASH_DOALL_ARG_FN(int_cb, ENGINE_PILE,ENGINE_PILE_DOALL)
-
-void engine_table_doall(ENGINE_TABLE *table, engine_table_doall_cb *cb,
-								void *arg)
-	{
-	ENGINE_PILE_DOALL dall;
-	dall.cb = cb;
-	dall.arg = arg;
-	lh_ENGINE_PILE_doall_arg(&table->piles, LHASH_DOALL_ARG_FN(int_cb),
-				 ENGINE_PILE_DOALL, &dall);
-	}