From a5e88cf4021d1539208d9ce94d6a40135e1f32cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Mon, 14 Jan 2002 16:06:33 +0100
Subject: [PATCH] *** empty log message ***
Rev: src/nettle/macros.h:1.5
---
macros.h | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
create mode 100644 macros.h
diff --git a/macros.h b/macros.h
new file mode 100644
index 00000000..c235600a
--- /dev/null
+++ b/macros.h
@@ -0,0 +1,65 @@
+/* macros.h
+ *
+ */
+
+/* nettle, low-level cryptographics library
+ *
+ * Copyright (C) 2001 Niels M�ller
+ *
+ * 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.
+ */
+
+#ifndef NETTLE_MACROS_H_INCLUDED
+#define NETTLE_MACROS_H_INCLUDED
+
+/* Reads a 32-bit integer, in network, big-endian, byte order */
+#define READ_UINT32(p) \
+( (((uint32_t) (p)[0]) << 24) \
+ | (((uint32_t) (p)[1]) << 16) \
+ | (((uint32_t) (p)[2]) << 8) \
+ | ((uint32_t) (p)[3]))
+
+#define WRITE_UINT32(p, i) \
+do { \
+ (p)[0] = ((i) >> 24) & 0xff; \
+ (p)[1] = ((i) >> 16) & 0xff; \
+ (p)[2] = ((i) >> 8) & 0xff; \
+ (p)[3] = (i) & 0xff; \
+} while(0)
+
+/* And the other, little-endian, byteorder */
+#define LE_READ_UINT32(p) \
+( (((uint32_t) (p)[3]) << 24) \
+ | (((uint32_t) (p)[2]) << 16) \
+ | (((uint32_t) (p)[1]) << 8) \
+ | ((uint32_t) (p)[0]))
+
+#define LE_WRITE_UINT32(p, i) \
+do { \
+ (p)[3] = ((i) >> 24) & 0xff; \
+ (p)[2] = ((i) >> 16) & 0xff; \
+ (p)[1] = ((i) >> 8) & 0xff; \
+ (p)[0] = (i) & 0xff; \
+} while(0)
+
+/* Macro to make it easier to loop over several blocks. */
+#define FOR_BLOCKS(length, dst, src, blocksize) \
+ assert( !((length) % (blocksize))); \
+ for (; (length); ((length) -= (blocksize), \
+ (dst) += (blocksize), \
+ (src) += (blocksize)) )
+
+#endif /* NETTLE_MACROS_H_INCLUDED */
--
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