From a4738812f4842c5a4fd12e004775b2c77f9f99ae Mon Sep 17 00:00:00 2001
From: mdw <mdw>
Date: Fri, 10 Dec 1999 23:21:37 +0000
Subject: [PATCH] Generic interface.

---
 ghash-def.h | 107 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 ghash-def.h

diff --git a/ghash-def.h b/ghash-def.h
new file mode 100644
index 0000000..91cc6f0
--- /dev/null
+++ b/ghash-def.h
@@ -0,0 +1,107 @@
+/* -*-c-*-
+ *
+ * $Id: ghash-def.h,v 1.1 1999/12/10 23:21:37 mdw Exp $
+ *
+ * Definitions for generic hash interface
+ *
+ * (c) 1999 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------* 
+ *
+ * This file is part of Catacomb.
+ *
+ * Catacomb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ * 
+ * Catacomb is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with Catacomb; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Revision history --------------------------------------------------* 
+ *
+ * $Log: ghash-def.h,v $
+ * Revision 1.1  1999/12/10 23:21:37  mdw
+ * Generic interface.
+ *
+ */
+
+#ifndef CATACOMB_GHASH_DEF_H
+#define CATACOMB_GHASH_DEF_H
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+/*----- Header files ------------------------------------------------------*/
+
+#include <mLib/bits.h>
+#include <mLib/sub.h>
+
+#ifndef CATACOMB_GHASH_H
+#  include "ghash.h"
+#endif
+
+/*----- Generic hash function interface -----------------------------------*/
+
+/* --- @GHASH_DEF@ --- *
+ *
+ * Arguments:	@PRE, pre@ = prefixes for hash function
+ *
+ * Use:		Defines the generic hash instance.
+ */
+
+#define GHASH_DEF(PRE, pre)						\
+									\
+static const ghash_ops gops;						\
+									\
+typedef struct gctx {							\
+  ghash h;								\
+  pre##_ctx c;								\
+} gctx;									\
+									\
+static ghash *ghinit(void)						\
+{									\
+  gctx *g = CREATE(gctx);						\
+  g->h.ops = &gops;							\
+  pre##_init(&g->c);							\
+  return (&g->h);							\
+}									\
+									\
+static void ghhash(ghash *h, const void *p, size_t sz)			\
+{									\
+  gctx *g = (gctx *)h;							\
+  pre##_hash(&g->c, p, sz);						\
+}									\
+									\
+static void ghdone(ghash *h, void *buf)					\
+{									\
+  gctx *g = (gctx *)h;							\
+  pre##_done(&g->c, buf);						\
+}									\
+									\
+static void ghdestroy(ghash *h)						\
+{									\
+  gctx *g = (gctx *)h;							\
+  DESTROY(g);								\
+}									\
+									\
+static const ghash_ops gops = { &pre.b, ghhash, ghdone, ghdestroy };	\
+const gchash pre = { { #pre, PRE##_HASHSZ }, ghinit };
+
+/*----- That's all, folks -------------------------------------------------*/
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif
-- 
2.11.0