/* -*-c-*-
*
- * $Id: ghash-def.h,v 1.2 2000/06/17 11:22:03 mdw Exp $
+ * $Id: ghash-def.h,v 1.7 2004/04/08 01:36:15 mdw Exp $
*
* Definitions for generic hash interface
*
* MA 02111-1307, USA.
*/
-/*----- Revision history --------------------------------------------------*
- *
- * $Log: ghash-def.h,v $
- * Revision 1.2 2000/06/17 11:22:03 mdw
- * Use secure arena for memory allocation. Minor changes in the generic
- * hash interface.
- *
- * Revision 1.1 1999/12/10 23:21:37 mdw
- * Generic interface.
- *
- */
-
#ifndef CATACOMB_GHASH_DEF_H
#define CATACOMB_GHASH_DEF_H
# include "ghash.h"
#endif
+#ifndef CATACOMB_PARANOIA_H
+# include "paranoia.h"
+#endif
+
/*----- Generic hash function interface -----------------------------------*/
/* --- @GHASH_DEF@ --- *
typedef struct gctx { \
ghash h; \
pre##_ctx c; \
+ octet buf[PRE##_HASHSZ]; \
} gctx; \
\
static ghash *ghinit(void) \
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; \
+ BURN(*g); \
S_DESTROY(g); \
} \
\
-static const ghash_ops gops = { &pre, ghhash, ghdone, ghdestroy }; \
-const gchash pre = { #pre, PRE##_HASHSZ, ghinit };
+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, ghhash, ghdone, ghdestroy, ghcopy }; \
+const gchash pre = { #pre, PRE##_HASHSZ, ghinit, PRE##_BUFSZ };
/*----- That's all, folks -------------------------------------------------*/