Merge branch 'master' of git+ssh://metalzone.distorted.org.uk/~mdw/public-git/catacomb/

[u/mdw/catacomb] / blkc.h

diff --git a/blkc.h b/blkc.h
index 5a7d3ec..d785f1d 100644 (file)
--- a/blkc.h
+++ b/blkc.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: blkc.h,v 1.6 2004/04/02 01:03:49 mdw Exp $
+ * $Id$
  *
  * Common definitions for block ciphers
  *
@@ -27,31 +27,6 @@
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: blkc.h,v $
- * Revision 1.6  2004/04/02 01:03:49  mdw
- * Miscellaneous constification.
- *
- * Revision 1.5  2001/05/07 17:28:42  mdw
- * Support block ciphers with larger blocks.
- *
- * Revision 1.4  2001/04/29 17:39:15  mdw
- * Removed `-sched' tests.  Reorganized so that we can theoretically have
- * multiple tests in the same file.  (This isn't so useful in production,
- * but it's handy when doing test builds.)
- *
- * Revision 1.3  2000/06/17 10:47:06  mdw
- * Slight support for 96-bit ciphers.  Support for counter-mode ciphers.
- *
- * Revision 1.2  1999/12/10 23:29:48  mdw
- * Change header file guard names.
- *
- * Revision 1.1  1999/09/03 08:41:11  mdw
- * Initial import.
- *
- */
-
 #ifndef CATACOMB_BLKC_H
 #define CATACOMB_BLKC_H
 
@@ -126,6 +101,10 @@
   BLKC_GLUE(BLKC_STEP_X_, BLKC_ENDIAN(PRE))                            \
     (PRE, w)
 
+#define BLKC_ZERO(PRE, w)                                              \
+  BLKC_GLUE(BLKC_ZERO_, BLKC_TYPE(PRE))                                        \
+    (PRE, w, BLKC_BITS(PRE))
+
 #define BLKC_SET(PRE, w, x)                                            \
   BLKC_GLUE(BLKC_SET_X_, BLKC_ENDIAN(PRE))                             \
     (PRE, w, x)
@@ -179,6 +158,9 @@
   BLKC_SKEL_X(PRE, BLKC_W(w); const BLKC_WX(wx);,                      \
              *_w ^= *_wx; _w++; _wx++; )                               \
 
+#define BLKC_ZERO_X(PRE, w, n)                                         \
+  BLKC_SKEL_X(PRE, BLKC_W(w);, *_w++ = 0;)
+
 #define BLKC_STEP_X_B(PRE, w) do {                                     \
   unsigned _i = PRE##_BLKSZ / 4; BLKC_W(w); uint32 _x = 0;             \
   while (_i && !_x) { _i--; _w[_i] = _x = U32(_w[_i] + 1); }           \
@@ -233,6 +215,7 @@
 #define BLKC_XLOAD_GUTS(op, i) _w[i] ^= op(_p + 4 * i)
 #define BLKC_MOVE_GUTS(op, i) _w[i] = _wx[i]
 #define BLKC_XMOVE_GUTS(op, i) _w[i] ^= _wx[i]
+#define BLKC_ZERO_GUTS(op, i) _w[i] = 0
 
 #define BLKC_STORE_N(PRE, b, w, op, n)                                 \
   BLKC_GLUE(BLKC_SKEL_, n)                                             \
@@ -255,6 +238,10 @@
   BLKC_GLUE(BLKC_SKEL_, n)                                             \
     (PRE, BLKC_W(w); const BLKC_WX(wx);, op, BLKC_MOVE_GUTS)
 
+#define BLKC_ZERO_N(PRE, w, n)                                         \
+  BLKC_GLUE(BLKC_SKEL_, n)                                             \
+    (PRE, BLKC_W(w); , op, BLKC_ZERO_GUTS)
+
 #define BLKC_XMOVE_N(PRE, w, wx, n)                                    \
   BLKC_GLUE(BLKC_SKEL_, n)                                             \
     (PRE, BLKC_W(w); const BLKC_WX(wx);, op, BLKC_XMOVE_GUTS)
@@ -270,6 +257,8 @@
 
 #ifdef TEST_RIG
 
+#include <string.h>
+    
 #include <mLib/quis.h>
 #include <mLib/testrig.h>