This commit was manufactured by cvs2git to create branch 'unlabeled-1.1.1'.

1 files changed, 158 insertions, 0 deletions

diff --git a/src/lib/libcrypto/engine/eng_init.c b/src/lib/libcrypto/engine/eng_init.c
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+++ b/src/lib/libcrypto/engine/eng_init.c
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+/* 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;
+        }
+