80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
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/*
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** Command & Conquer Generals Zero Hour(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MANGLER_H__
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#define __MANGLER_H__
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// Packet should consist of a GlobalHeaderType followed by a GlobalPacketType with the fields set as
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// indicated.
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/*
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********************************** Defines **********************************
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*/
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// This is the number of additional ports to which to reply.
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#define BLITZ_SIZE 3
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#define MPLAYER_NAME_MAX 20
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#define SERIAL_MAX 23
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typedef unsigned char ForwardMaskType;
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typedef enum NetCommandType {
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NET_MANGLER_REQUEST = 43,
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NET_MANGLER_RESPONSE = 44
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} NetCommandType;
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/*
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** One byte alignment.
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*/
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#if !defined(__GNUC__)
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#pragma pack(push, 1)
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#define PACK
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#else
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#define PACK __attribute__ ((__packed__))
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#endif
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// size = 20 bytes
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struct ManglerData {
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unsigned int CRC PACK;
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unsigned short magic PACK;
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unsigned short packetID PACK;
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unsigned short MyMangledPortNumber PACK;
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unsigned short OriginalPortNumber PACK;
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unsigned char MyMangledAddress[4] PACK;
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unsigned char NetCommandType PACK;
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unsigned char BlitzMe PACK;
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unsigned short Padding PACK;
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};
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/*
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This is for older GCC versions that can't do byte-packing.
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Instead of declaring
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GlobalPacketType p;
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p.Command = NET_MANGLER_REQUEST;
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you would do something like this:
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GlobalPacketStruct p;
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Eval(&p, GPCommand, NetCommandType) = NET_MANGLER_REQUEST;
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*/
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#define Eval(x, y, z) ( *((z *)(&((x)->payload[(y)]))) )
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#if !defined(__GNUC__)
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#pragma pack(pop)
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#endif
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#endif // __MANGLER_H__
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