1 files changed, 95 insertions, 0 deletions
diff --git a/fuzz/handshake.h b/fuzz/handshake.h
new file mode 100644
index 0000000..34c7b70
--- /dev/null
+++ b/fuzz/handshake.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2017 Nikos Mavrogiannopoulos
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef HANDSHAKE_H
+# define HANDSHAKE_H
+
+#define HANDSHAKE_MAX_RETRY_COUNT 10
+
+typedef struct mem_st {
+	const uint8_t *data;
+	size_t size;
+} mem_st;
+
+static ssize_t
+error_push(gnutls_transport_ptr_t tr, const void *data, size_t len)
+{
+	return -1;
+}
+
+static ssize_t
+error_pull(gnutls_transport_ptr_t tr, void *data, size_t len)
+{
+	return -1;
+}
+
+static int
+handshake_discard(gnutls_session_t session,
+		  gnutls_record_encryption_level_t level,
+		  gnutls_handshake_description_t htype,
+		  const void *data, size_t data_size)
+{
+	return 0;
+}
+
+static int
+handshake_pull(gnutls_session_t session, mem_st *data)
+{
+	uint32_t level, size;
+	int ret;
+
+	if (data->size < 4) {
+		return -1;
+	}
+
+	level = ((unsigned)data->data[0] << 24) | (data->data[1] << 16) |
+		(data->data[2] << 8) | data->data[3];
+
+	data->size -= 4;
+	data->data += 4;
+
+	if (data->size < 4) {
+		return -1;
+	}
+
+	size = ((unsigned)data->data[0] << 24) | (data->data[1] << 16) |
+		(data->data[2] << 8) | data->data[3];
+
+	data->size -= 4;
+	data->data += 4;
+
+	if (size > data->size) {
+		return -1;
+	}
+
+	ret = gnutls_handshake_write(session,
+				     (gnutls_record_encryption_level_t)level,
+				     data->data,
+				     size);
+	data->size -= size;
+	data->data += size;
+
+	return ret;
+}
+
+#endif