From c46f2b022d0b500c4314bfb5f28d61aa928f04b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Sun, 28 Aug 2011 22:18:03 +0200
Subject: [PATCH] (_nettle_write_le32): New file and function.
Rev: nettle/write-le32.c:1.1
---
write-le32.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
create mode 100644 write-le32.c
diff --git a/write-le32.c b/write-le32.c
new file mode 100644
index 00000000..6b9391b9
--- /dev/null
+++ b/write-le32.c
@@ -0,0 +1,60 @@
+/* write-le32.c */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001, 2011 Niels Möller
+ *
+ * The nettle library is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at your
+ * option) any later version.
+ *
+ * The nettle library 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 Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with the nettle library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdlib.h>
+
+#include "nettle-write.h"
+
+#include "macros.h"
+
+void
+_nettle_write_le32(unsigned length, uint8_t *dst,
+ uint32_t *src)
+{
+ unsigned i;
+ unsigned words;
+ unsigned leftover;
+
+ words = length / 4;
+ leftover = length % 4;
+
+ for (i = 0; i < words; i++, dst += 4)
+ LE_WRITE_UINT32(dst, src[i]);
+
+ if (leftover)
+ {
+ uint32_t word;
+
+ word = src[i];
+
+ do
+ {
+ *dst++ = word & 0xff;
+ word >>= 8;
+ }
+ while (--leftover);
+ }
+}
--
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