Initial commit

limelight-common/Handshake.cpp

@@ -0,0 +1,80 @@
+
+#include "PlatformSockets.h"
+
+const char HELLO [] = {
+	0x07, 0x00, 0x00, 0x00,
+	0x61, 0x6e, 0x64, 0x72,
+	0x6f, 0x69, 0x64, 0x03,
+	0x01, 0x00, 0x00
+};
+
+const char PACKET2 [] = {
+	0x01, 0x03, 0x02, 0x00,
+	0x08, 0x00
+};
+
+const char PACKET3 [] = {
+	0x04, 0x01, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00
+};
+
+const char PACKET4 [] = {
+	0x01, 0x01, 0x00, 0x0
+};
+
+static int waitAndDiscardResponse(SOCKET sock) {
+	char temp[256];
+	return recv(sock, temp, sizeof(temp), 0);
+}
+
+int performHandshake(IP_ADDRESS host) {
+	SOCKET s;
+	int err;
+
+	s = connectTcpSocket(host, 47991);
+	if (s == INVALID_SOCKET) {
+		return LastSocketError();
+	}
+
+	err = send(s, HELLO, sizeof(HELLO), 0);
+	if (err == SOCKET_ERROR) {
+		goto CleanupError;
+	}
+
+	err = waitAndDiscardResponse(s);
+	if (err == SOCKET_ERROR) {
+		goto CleanupError;
+	}
+
+	err = send(s, PACKET2, sizeof(PACKET2), 0);
+	if (err == SOCKET_ERROR) {
+		goto CleanupError;
+	}
+
+	err = waitAndDiscardResponse(s);
+	if (err == SOCKET_ERROR) {
+		goto CleanupError;
+	}
+
+	err = send(s, PACKET3, sizeof(PACKET3), 0);
+	if (err == SOCKET_ERROR) {
+		goto CleanupError;
+	}
+
+	err = waitAndDiscardResponse(s);
+	if (err == SOCKET_ERROR) {
+		goto CleanupError;
+	}
+
+	err = send(s, PACKET4, sizeof(PACKET4), 0);
+	if (err == SOCKET_ERROR) {
+		goto CleanupError;
+	}
+
+	closesocket(s);
+	return 0;
+
+CleanupError:
+	closesocket(s);
+	return LastSocketError();
+}