From ab6e3fce040f9ad27cbce44e9038a24f15b601c8 Mon Sep 17 00:00:00 2001
From: Matthieu Patou <mat@matws.net>
Date: Sun, 15 Aug 2010 18:31:28 +0400
Subject: s4:heimdal: import lorikeet-heimdal-201009250123 (commit
 42cabfb5b683dbcb97d583c397b897507689e382)

I based this on Matthieu's import of lorikeet-heimdal, and then
updated it to this commit.

Andrew Bartlett
---
 .../heimdal/lib/hcrypto/libtommath/bn_mp_copy.c    | 68 ++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 source4/heimdal/lib/hcrypto/libtommath/bn_mp_copy.c

(limited to 'source4/heimdal/lib/hcrypto/libtommath/bn_mp_copy.c')

diff --git a/source4/heimdal/lib/hcrypto/libtommath/bn_mp_copy.c b/source4/heimdal/lib/hcrypto/libtommath/bn_mp_copy.c
new file mode 100644
index 0000000000..b0de16d8ab
--- /dev/null
+++ b/source4/heimdal/lib/hcrypto/libtommath/bn_mp_copy.c
@@ -0,0 +1,68 @@
+#include <tommath.h>
+#ifdef BN_MP_COPY_C
+/* LibTomMath, multiple-precision integer library -- Tom St Denis
+ *
+ * LibTomMath is a library that provides multiple-precision
+ * integer arithmetic as well as number theoretic functionality.
+ *
+ * The library was designed directly after the MPI library by
+ * Michael Fromberger but has been written from scratch with
+ * additional optimizations in place.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+
+/* copy, b = a */
+int
+mp_copy (mp_int * a, mp_int * b)
+{
+  int     res, n;
+
+  /* if dst == src do nothing */
+  if (a == b) {
+    return MP_OKAY;
+  }
+
+  /* grow dest */
+  if (b->alloc < a->used) {
+     if ((res = mp_grow (b, a->used)) != MP_OKAY) {
+        return res;
+     }
+  }
+
+  /* zero b and copy the parameters over */
+  {
+    register mp_digit *tmpa, *tmpb;
+
+    /* pointer aliases */
+
+    /* source */
+    tmpa = a->dp;
+
+    /* destination */
+    tmpb = b->dp;
+
+    /* copy all the digits */
+    for (n = 0; n < a->used; n++) {
+      *tmpb++ = *tmpa++;
+    }
+
+    /* clear high digits */
+    for (; n < b->used; n++) {
+      *tmpb++ = 0;
+    }
+  }
+
+  /* copy used count and sign */
+  b->used = a->used;
+  b->sign = a->sign;
+  return MP_OKAY;
+}
+#endif
+
+/* $Source: /cvs/libtom/libtommath/bn_mp_copy.c,v $ */
+/* $Revision: 1.4 $ */
+/* $Date: 2006/12/28 01:25:13 $ */
-- 
cgit