import openssl-0.9.7-beta1

1 files changed, 158 insertions, 0 deletions

diff --git a/lib/libcrypto/engine/eng_init.c b/lib/libcrypto/engine/eng_init.c
new file mode 100644
index 00000000000..cc9396e8636
--- /dev/null
+++ b/lib/libcrypto/engine/eng_init.c
@@ -0,0 +1,158 @@
+/* crypto/engine/eng_init.c */
+/* ====================================================================
+ * Copyright (c) 1999-2001 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 <openssl/crypto.h>
+#include "cryptlib.h"
+#include "eng_int.h"
+#include <openssl/engine.h>
+
+/* Initialise a engine type for use (or up its functional reference count
+ * if it's already in use). This version is only used internally. */
+int engine_unlocked_init(ENGINE *e)
+	{
+	int to_return = 1;
+
+	if((e->funct_ref == 0) && e->init)
+		/* This is the first functional reference and the engine
+		 * requires initialisation so we do it now. */
+		to_return = e->init(e);
+	if(to_return)
+		{
+		/* OK, we return a functional reference which is also a
+		 * structural reference. */
+		e->struct_ref++;
+		e->funct_ref++;
+		engine_ref_debug(e, 0, 1)
+		engine_ref_debug(e, 1, 1)
+		}
+	return to_return;
+	}
+
+/* Free a functional reference to a engine type. This version is only used
+ * internally. */
+int engine_unlocked_finish(ENGINE *e, int unlock_for_handlers)
+	{
+	int to_return = 1;
+
+	/* Reduce the functional reference count here so if it's the terminating
+	 * case, we can release the lock safely and call the finish() handler
+	 * without risk of a race. We get a race if we leave the count until
+	 * after and something else is calling "finish" at the same time -
+	 * there's a chance that both threads will together take the count from
+	 * 2 to 0 without either calling finish(). */
+	e->funct_ref--;
+	engine_ref_debug(e, 1, -1);
+	if((e->funct_ref == 0) && e->finish)
+		{
+		if(unlock_for_handlers)
+			CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
+		to_return = e->finish(e);
+		if(unlock_for_handlers)
+			CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
+		if(!to_return)
+			return 0;
+		}
+#ifdef REF_CHECK
+	if(e->funct_ref < 0)
+		{
+		fprintf(stderr,"ENGINE_finish, bad functional reference count\n");
+		abort();
+		}
+#endif
+	/* Release the structural reference too */
+	if(!engine_free_util(e, 0))
+		{
+		ENGINEerr(ENGINE_F_ENGINE_FINISH,ENGINE_R_FINISH_FAILED);
+		return 0;
+		}
+	return to_return;
+	}
+
+/* The API (locked) version of "init" */
+int ENGINE_init(ENGINE *e)
+	{
+	int ret;
+	if(e == NULL)
+		{
+		ENGINEerr(ENGINE_F_ENGINE_INIT,ERR_R_PASSED_NULL_PARAMETER);
+		return 0;
+		}
+	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
+	ret = engine_unlocked_init(e);
+	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
+	return ret;
+	}
+
+/* The API (locked) version of "finish" */
+int ENGINE_finish(ENGINE *e)
+	{
+	int to_return = 1;
+
+	if(e == NULL)
+		{
+		ENGINEerr(ENGINE_F_ENGINE_FINISH,ERR_R_PASSED_NULL_PARAMETER);
+		return 0;
+		}
+	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
+	to_return = engine_unlocked_finish(e, 1);
+	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
+	if(!to_return)
+		{
+		ENGINEerr(ENGINE_F_ENGINE_FINISH,ENGINE_R_FINISH_FAILED);
+		return 0;
+		}
+	return to_return;
+	}
+