1 files changed, 84 insertions, 0 deletions
diff --git a/contrib/pgcrypto/openssl.c b/contrib/pgcrypto/openssl.c
new file mode 100644
index 00000000000..76a2a56b672
--- /dev/null
+++ b/contrib/pgcrypto/openssl.c
@@ -0,0 +1,84 @@
+/*
+ * openssl.c
+ *		Wrapper for OpenSSL library.
+ * 
+ * Copyright (c) 2000 Marko Kreen
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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.
+ *
+ * $Id: openssl.c,v 1.1 2000/10/31 13:11:28 petere Exp $
+ */
+
+#include <postgres.h>
+#include "pgcrypto.h"
+
+#include <evp.h>
+
+static uint
+pg_ossl_len(pg_digest *h);
+static uint8 *
+pg_ossl_digest(pg_digest *h, uint8 *src, uint len, uint8 *buf);
+
+static uint
+pg_ossl_len(pg_digest *h) {
+	return EVP_MD_size((EVP_MD*)h->misc.ptr);
+}
+
+static uint8 *
+pg_ossl_digest(pg_digest *h, uint8 *src, uint len, uint8 *buf)
+{
+	EVP_MD *md = (EVP_MD*)h->misc.ptr;
+	EVP_MD_CTX ctx;
+
+	EVP_DigestInit(&ctx, md);
+	EVP_DigestUpdate(&ctx, src, len);
+	EVP_DigestFinal(&ctx, buf, NULL);
+	
+	return buf;
+}
+
+static int pg_openssl_initialized = 0;
+
+pg_digest *
+pg_find_digest(pg_digest *h, char *name)
+{
+	const EVP_MD *md;
+
+	if (!pg_openssl_initialized) {
+		OpenSSL_add_all_digests();
+		pg_openssl_initialized = 1;
+	}
+	
+	md = EVP_get_digestbyname(name);
+	if (md == NULL)
+		return NULL;
+	
+	h->name = name;
+	h->length = pg_ossl_len;
+	h->digest = pg_ossl_digest;
+	h->misc.ptr = (void*)md;
+	
+	return h;
+}
+
+