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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/crypto/engine/tb_digest.c
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Diffstat (limited to 'openssl/crypto/engine/tb_digest.c')
-rw-r--r--openssl/crypto/engine/tb_digest.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/openssl/crypto/engine/tb_digest.c b/openssl/crypto/engine/tb_digest.c
new file mode 100644
index 000000000..d3f4bb274
--- /dev/null
+++ b/openssl/crypto/engine/tb_digest.c
@@ -0,0 +1,143 @@
+/* ====================================================================
+ * Copyright (c) 2000 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 "eng_int.h"
+
+/* If this symbol is defined then ENGINE_get_digest_engine(), the function that
+ * is used by EVP to hook in digest code and cache defaults (etc), will display
+ * brief debugging summaries to stderr with the 'nid'. */
+/* #define ENGINE_DIGEST_DEBUG */
+
+static ENGINE_TABLE *digest_table = NULL;
+
+void ENGINE_unregister_digests(ENGINE *e)
+ {
+ engine_table_unregister(&digest_table, e);
+ }
+
+static void engine_unregister_all_digests(void)
+ {
+ engine_table_cleanup(&digest_table);
+ }
+
+int ENGINE_register_digests(ENGINE *e)
+ {
+ if(e->digests)
+ {
+ const int *nids;
+ int num_nids = e->digests(e, NULL, &nids, 0);
+ if(num_nids > 0)
+ return engine_table_register(&digest_table,
+ engine_unregister_all_digests, e, nids,
+ num_nids, 0);
+ }
+ return 1;
+ }
+
+void ENGINE_register_all_digests()
+ {
+ ENGINE *e;
+
+ for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e))
+ ENGINE_register_digests(e);
+ }
+
+int ENGINE_set_default_digests(ENGINE *e)
+ {
+ if(e->digests)
+ {
+ const int *nids;
+ int num_nids = e->digests(e, NULL, &nids, 0);
+ if(num_nids > 0)
+ return engine_table_register(&digest_table,
+ engine_unregister_all_digests, e, nids,
+ num_nids, 1);
+ }
+ return 1;
+ }
+
+/* Exposed API function to get a functional reference from the implementation
+ * table (ie. try to get a functional reference from the tabled structural
+ * references) for a given digest 'nid' */
+ENGINE *ENGINE_get_digest_engine(int nid)
+ {
+ return engine_table_select(&digest_table, nid);
+ }
+
+/* Obtains a digest implementation from an ENGINE functional reference */
+const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid)
+ {
+ const EVP_MD *ret;
+ ENGINE_DIGESTS_PTR fn = ENGINE_get_digests(e);
+ if(!fn || !fn(e, &ret, NULL, nid))
+ {
+ ENGINEerr(ENGINE_F_ENGINE_GET_DIGEST,
+ ENGINE_R_UNIMPLEMENTED_DIGEST);
+ return NULL;
+ }
+ return ret;
+ }
+
+/* Gets the digest callback from an ENGINE structure */
+ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e)
+ {
+ return e->digests;
+ }
+
+/* Sets the digest callback in an ENGINE structure */
+int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f)
+ {
+ e->digests = f;
+ return 1;
+ }