1 files changed, 50 insertions, 0 deletions
diff --git a/indra/llmessage/net.h b/indra/llmessage/net.h
new file mode 100644
index 0000000000..1044807ba6
--- /dev/null
+++ b/indra/llmessage/net.h
@@ -0,0 +1,50 @@
+/** 
+ * @file net.h
+ * @brief Cross platform UDP network code.
+ *
+ * Copyright (c) 2000-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#ifndef LL_NET_H					
+#define LL_NET_H
+
+class LLTimer;
+class LLHost;
+
+#define NET_BUFFER_SIZE (0x2000)
+
+// Request a free local port from the operating system
+#define NET_USE_OS_ASSIGNED_PORT 0
+
+// Returns 0 on success, non-zero on error.
+// Sets socket handler/descriptor, changes nPort if port requested is unavailable.
+S32		start_net(S32& socket_out, int& nPort);								
+void	end_net();
+
+// returns size of packet or -1 in case of error
+S32		receive_packet(int hSocket, char * receiveBuffer);
+
+BOOL	send_packet(int hSocket, const char *sendBuffer, int size, U32 recipient, int nPort);	// Returns TRUE on success.
+
+//void	get_sender(char * tmp);
+LLHost  get_sender();
+U32		get_sender_port();
+U32		get_sender_ip(void);
+
+const char*	u32_to_ip_string(U32 ip);					// Returns pointer to internal string buffer, "(bad IP addr)" on failure, cannot nest calls 
+char*		u32_to_ip_string(U32 ip, char *ip_string);	// NULL on failure, ip_string on success, you must allocate at least MAXADDRSTR chars
+U32			ip_string_to_u32(const char* ip_string);	// Wrapper for inet_addr()
+
+extern const char* LOOPBACK_ADDRESS_STRING;
+
+
+// useful MTU consts
+
+const S32	MTUBYTES = 1200;	// 1500 = standard Ethernet MTU
+const S32	ETHERNET_MTU_BYTES = 1500;
+const S32	MTUBITS = MTUBYTES*8;
+const S32	MTUU32S = MTUBITS/32;
+
+
+#endif