add uTP support for outbound connections

1 files changed, 60 insertions, 0 deletions

diff --git a/src/libutp/utp_packedsockaddr.h b/src/libutp/utp_packedsockaddr.h
new file mode 100644
index 00000000..76e8acca
--- /dev/null
+++ b/src/libutp/utp_packedsockaddr.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2010-2013 BitTorrent, Inc.
+ *
+ * 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 __UTP_PACKEDSOCKADDR_H__
+#define __UTP_PACKEDSOCKADDR_H__
+
+#include "utp_types.h"
+
+struct PACKED_ATTRIBUTE PackedSockAddr {
+	// The values are always stored here in network byte order
+	union {
+		byte _in6[16];		// IPv6
+		uint16 _in6w[8];	// IPv6, word based (for convenience)
+		uint32 _in6d[4];	// Dword access
+		in6_addr _in6addr;	// For convenience
+	} _in;
+
+	// Host byte order
+	uint16 _port;
+
+	#define _sin4 _in._in6d[3]	// IPv4 is stored where it goes if mapped
+
+	#define _sin6 _in._in6
+	#define _sin6w _in._in6w
+	#define _sin6d _in._in6d
+
+	byte get_family() const;
+	bool operator==(const PackedSockAddr& rhs) const;
+	bool operator!=(const PackedSockAddr& rhs) const;
+	void set(const SOCKADDR_STORAGE* sa, socklen_t len);
+
+	PackedSockAddr(const SOCKADDR_STORAGE* sa, socklen_t len);
+	PackedSockAddr(void);
+
+	SOCKADDR_STORAGE get_sockaddr_storage(socklen_t *len) const;
+	cstr fmt(str s, size_t len) const;
+
+	uint32 compute_hash() const;
+} ALIGNED_ATTRIBUTE(4);
+
+#endif //__UTP_PACKEDSOCKADDR_H__