Mercurial > dropbear

diff bn_mp_init.c @ 142:d29b64170cf0 libtommath-orig
import of libtommath 0.32
author: Matt Johnston <matt@ucc.asn.au>
date: Sun, 19 Dec 2004 11:33:56 +0000
parents: 86e0b50a9b58
--- a/bn_mp_init.c	Tue Jun 15 14:42:57 2004 +0000
+++ b/bn_mp_init.c	Sun Dec 19 11:33:56 2004 +0000
@@ -1,3 +1,5 @@
+#include <tommath.h>
+#ifdef BN_MP_INIT_C
 /* LibTomMath, multiple-precision integer library -- Tom St Denis
  *
  * LibTomMath is a library that provides multiple-precision
@@ -12,17 +14,23 @@
  *
  * Tom St Denis, [email protected], http://math.libtomcrypt.org
  */
-#include <tommath.h>
 
-/* init a new bigint */
+/* init a new mp_int */
 int mp_init (mp_int * a)
 {
+  int i;
+
   /* allocate memory required and clear it */
-  a->dp = OPT_CAST(mp_digit) XCALLOC (sizeof (mp_digit), MP_PREC);
+  a->dp = OPT_CAST(mp_digit) XMALLOC (sizeof (mp_digit) * MP_PREC);
   if (a->dp == NULL) {
     return MP_MEM;
   }
 
+  /* set the digits to zero */
+  for (i = 0; i < MP_PREC; i++) {
+      a->dp[i] = 0;
+  }
+
   /* set the used to zero, allocated digits to the default precision
    * and sign to positive */
   a->used  = 0;
@@ -31,3 +39,4 @@
 
   return MP_OKAY;
 }
+#endif