net.h
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- /**
- * @file net.h
- * @brief Cross platform UDP network code.
- *
- * $LicenseInfo:firstyear=2000&license=viewergpl$
- *
- * Copyright (c) 2000-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #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(S32& socket_out);
- // 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);
- LLHost get_receiving_interface();
- U32 get_receiving_interface_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;
- extern const char* BROADCAST_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