X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/a4738812f4842c5a4fd12e004775b2c77f9f99ae..42ca150ce7fa024a8fd6a4c9433b613175270eb4:/ghash-def.h

diff --git a/ghash-def.h b/ghash-def.h
index 91cc6f0..6d20e5b 100644
--- a/ghash-def.h
+++ b/ghash-def.h
@@ -1,13 +1,13 @@
 /* -*-c-*-
  *
- * $Id: ghash-def.h,v 1.1 1999/12/10 23:21:37 mdw Exp $
+ * $Id: ghash-def.h,v 1.7 2004/04/08 01:36:15 mdw Exp $
  *
  * Definitions for generic hash interface
  *
  * (c) 1999 Straylight/Edgeware
  */
 
-/*----- Licensing notice --------------------------------------------------* 
+/*----- Licensing notice --------------------------------------------------*
  *
  * This file is part of Catacomb.
  *
@@ -15,26 +15,18 @@
  * 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
 
@@ -47,10 +39,18 @@
 #include <mLib/bits.h>
 #include <mLib/sub.h>
 
+#ifndef CATACOMB_ARENA_H
+#  include "arena.h"
+#endif
+
 #ifndef CATACOMB_GHASH_H
 #  include "ghash.h"
 #endif
 
+#ifndef CATACOMB_PARANOIA_H
+#  include "paranoia.h"
+#endif
+
 /*----- Generic hash function interface -----------------------------------*/
 
 /* --- @GHASH_DEF@ --- *
@@ -67,11 +67,12 @@ static const ghash_ops gops;						\
 typedef struct gctx {							\
   ghash h;								\
   pre##_ctx c;								\
+  octet buf[PRE##_HASHSZ];						\
 } gctx;									\
 									\
 static ghash *ghinit(void)						\
 {									\
-  gctx *g = CREATE(gctx);						\
+  gctx *g = S_CREATE(gctx);						\
   g->h.ops = &gops;							\
   pre##_init(&g->c);							\
   return (&g->h);							\
@@ -83,20 +84,33 @@ static void ghhash(ghash *h, const void *p, size_t sz)			\
   pre##_hash(&g->c, p, sz);						\
 }									\
 									\
-static void ghdone(ghash *h, void *buf)					\
+static octet *ghdone(ghash *h, void *buf)				\
 {									\
   gctx *g = (gctx *)h;							\
+  if (!buf)								\
+    buf = g->buf;							\
   pre##_done(&g->c, buf);						\
+  return (buf);								\
 }									\
 									\
 static void ghdestroy(ghash *h)						\
 {									\
   gctx *g = (gctx *)h;							\
-  DESTROY(g);								\
+  BURN(*g);								\
+  S_DESTROY(g);								\
+}									\
+									\
+static ghash *ghcopy(ghash *h)						\
+{									\
+  gctx *g = (gctx *)h;							\
+  gctx *gg = S_CREATE(gctx);						\
+  memcpy(gg, g, sizeof(gctx));						\
+  return (&gg->h);							\
 }									\
 									\
-static const ghash_ops gops = { &pre.b, ghhash, ghdone, ghdestroy };	\
-const gchash pre = { { #pre, PRE##_HASHSZ }, ghinit };
+static const ghash_ops gops =						\
+  { &pre, ghhash, ghdone, ghdestroy, ghcopy };				\
+const gchash pre = { #pre, PRE##_HASHSZ, ghinit, PRE##_BUFSZ };
 
 /*----- That's all, folks -------------------------------------------------*/