1 files changed, 140 insertions, 0 deletions
diff --git a/util/cbfstool/xdr.c b/util/cbfstool/xdr.c
new file mode 100644
index 0000000000..d779675cd5
--- /dev/null
+++ b/util/cbfstool/xdr.c
@@ -0,0 +1,140 @@
+ /*
+ * cbfstool, CLI utility for CBFS file manipulation
+ *
+ * Copyright 2013 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <stdint.h>
+#include "common.h"
+
+/* The assumption in all this code is that we're given a pointer to enough data.
+ * Hence, we do not check for underflow.
+ */
+static uint8_t get8(struct buffer *input)
+{
+	uint8_t ret = *input->data++;
+	input->size--;
+	return ret;
+}
+
+static uint16_t get16be(struct buffer *input)
+{
+	uint16_t ret;
+	ret = get8(input) << 8;
+	ret |= get8(input);
+	return ret;
+}
+
+static uint32_t get32be(struct buffer *input)
+{
+	uint32_t ret;
+	ret = get16be(input) << 16;
+	ret |= get16be(input);
+	return ret;
+}
+
+static uint64_t get64be(struct buffer *input)
+{
+	uint64_t ret;
+	ret = get32be(input);
+	ret <<= 32;
+	ret |= get32be(input);
+	return ret;
+}
+
+static void put8(struct buffer *input, uint8_t val)
+{
+	input->data[input->size] = val;
+	input->size++;
+}
+
+static void put16be(struct buffer *input, uint16_t val)
+{
+	put8(input, val >> 8);
+	put8(input, val);
+}
+
+static void put32be(struct buffer *input, uint32_t val)
+{
+	put16be(input, val >> 16);
+	put16be(input, val);
+}
+
+static void put64be(struct buffer *input, uint64_t val)
+{
+	put32be(input, val >> 32);
+	put32be(input, val);
+}
+
+static uint16_t get16le(struct buffer *input)
+{
+	uint16_t ret;
+	ret = get8(input);
+	ret |= get8(input) << 8;
+	return ret;
+}
+
+static uint32_t get32le(struct buffer *input)
+{
+	uint32_t ret;
+	ret = get16le(input);
+	ret |= get16le(input) << 16;
+	return ret;
+}
+
+static uint64_t get64le(struct buffer *input)
+{
+	uint64_t ret;
+	uint32_t low;
+	low = get32le(input);
+	ret = get32le(input);
+	ret <<= 32;
+	ret |= low;
+	return ret;
+}
+
+static void put16le(struct buffer *input, uint16_t val)
+{
+	put8(input, val);
+	put8(input, val >> 8);
+}
+
+static void put32le(struct buffer *input, uint32_t val)
+{
+	put16le(input, val);
+	put16le(input, val >> 16);
+}
+
+static void put64le(struct buffer *input, uint64_t val)
+{
+	put32le(input, val);
+	put32le(input, val >> 32);
+}
+
+struct xdr xdr_be = {
+	get16be, get32be, get64be,
+	put16be, put32be, put64be
+};
+
+struct xdr xdr_le = {
+	get16le, get32le, get64le,
+	put16le, put32le, put64le
+};