1 files changed, 78 insertions, 0 deletions
diff --git a/core/tee/se/util.c b/core/tee/se/util.c
new file mode 100644
index 0000000..d118f26
--- /dev/null
+++ b/core/tee/se/util.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2014, Linaro Limited
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <tee_api_types.h>
+#include <trace.h>
+#include <tee/se/util.h>
+
+#include <stdio.h>
+
+char *print_buf(char *buf, size_t *remain_size, const char *fmt, ...)
+{
+	va_list ap;
+	size_t len;
+
+	va_start(ap, fmt);
+	len = vsnprintf(buf, *remain_size, fmt, ap);
+	buf += len;
+	*remain_size -= len;
+	va_end(ap);
+	return buf;
+}
+
+void dump_hex(char *buf, size_t *remain_size, uint8_t *input_buf,
+		size_t input_size)
+{
+	size_t i;
+
+	for (i = 0; i < input_size; i++)
+		buf = print_buf(buf, remain_size, "%02X ", input_buf[i]);
+}
+
+void print_hex(uint8_t *input_buf, size_t input_size)
+{
+	char buf[DUMP_BUF_MAX];
+	size_t remain = sizeof(buf);
+
+	dump_hex(buf, &remain, input_buf, input_size);
+	DMSG("%s", buf);
+}
+
+uint8_t *hex_decode(const char *in, size_t len, uint8_t *out)
+{
+	size_t i, t, hn, ln;
+
+	for (t = 0, i = 0; i < len; i += 2, ++t) {
+		hn = in[i] > '9' ?
+			(in[i] | 32) - 'a' + 10 : in[i] - '0';
+		ln = in[i + 1] > '9' ?
+			(in[i + 1] | 32) - 'a' + 10 : in[i + 1] - '0';
+
+		out[t] = (hn << 4) | ln;
+	}
+	return out;
+}