Hashing functions from Marko Kreen <marko@l-t.ee>

1 files changed, 114 insertions, 0 deletions

diff --git a/contrib/pgcrypto/internal.c b/contrib/pgcrypto/internal.c
new file mode 100644
index 00000000000..b1c24b20db9
--- /dev/null
+++ b/contrib/pgcrypto/internal.c
@@ -0,0 +1,114 @@
+/*
+ * internal.c
+ *		Wrapper for builtin functions
+ * 
+ * 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: internal.c,v 1.1 2000/10/31 13:11:28 petere Exp $
+ */
+
+#include <postgres.h>
+
+#include "pgcrypto.h"
+
+#include "md5.h"
+#include "sha1.h"
+
+#ifndef MD5_DIGEST_LENGTH
+#define MD5_DIGEST_LENGTH 16
+#endif
+
+#ifndef SHA1_DIGEST_LENGTH
+#ifdef SHA1_RESULTLEN
+#define SHA1_DIGEST_LENGTH SHA1_RESULTLEN
+#else
+#define SHA1_DIGEST_LENGTH 20
+#endif
+#endif
+
+static uint
+pg_md5_len(pg_digest *h);
+static uint8 *
+pg_md5_digest(pg_digest *h, uint8 *src, uint len, uint8 *buf);
+
+static uint
+pg_sha1_len(pg_digest *h);
+static uint8 *
+pg_sha1_digest(pg_digest *h, uint8 *src, uint len, uint8 *buf);
+
+static pg_digest
+int_digest_list [] = {
+	{ "md5", pg_md5_len, pg_md5_digest, {0}},
+	{ "sha1", pg_sha1_len, pg_sha1_digest, {0}},
+	{ NULL, NULL, NULL, {0}}
+};
+
+static uint
+pg_md5_len(pg_digest *h) {
+	return MD5_DIGEST_LENGTH;
+}
+
+static uint8 *
+pg_md5_digest(pg_digest *h, uint8 *src, uint len, uint8 *buf)
+{
+	MD5_CTX ctx;
+
+	MD5Init(&ctx);
+	MD5Update(&ctx, src, len);
+	MD5Final(buf, &ctx);
+
+	return buf;
+}
+
+static uint
+pg_sha1_len(pg_digest *h) {
+	return SHA1_DIGEST_LENGTH;
+}
+
+static uint8 *
+pg_sha1_digest(pg_digest *h, uint8 *src, uint len, uint8 *buf)
+{
+	SHA1_CTX ctx;
+
+	SHA1Init(&ctx);
+	SHA1Update(&ctx, src, len);
+	SHA1Final(buf, &ctx);
+	
+	return buf;
+}
+
+
+pg_digest *
+pg_find_digest(pg_digest *h, char *name)
+{
+	pg_digest *p;
+
+	for (p = int_digest_list; p->name; p++)
+		if (!strcasecmp(p->name, name))
+			return p;
+	return NULL;
+}
+
+