/* * The ManaPlus Client * Copyright (C) 2004-2009 The Mana World Development Team * Copyright (C) 2009-2010 The Mana Developers * Copyright (C) 2011-2015 The ManaPlus Developers * * This file is part of The ManaPlus Client. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "net/eathena/messagein.h" #include "net/net.h" #include "net/packetcounters.h" #include "logger.h" #include <SDL_endian.h> #include "debug.h" namespace EAthena { MessageIn::MessageIn(const char *const data, const unsigned int length) : Net::MessageIn(data, length) { } void MessageIn::postInit() { // Read the message ID mId = readId(); IGNOREDEBUGLOG; DEBUGLOG2("Receive packet", 0, "MessageIn"); readInt16("packet id"); } uint16_t MessageIn::readId() { int16_t value = -1; if (mPos + 2 <= mLength) { #if SDL_BYTEORDER == SDL_BIG_ENDIAN int16_t swap; memcpy(&swap, mData + static_cast<size_t>(mPos), sizeof(int16_t)); value = SDL_Swap16(swap); #else memcpy(&value, mData + static_cast<size_t>(mPos), sizeof(int16_t)); #endif } return value; } int16_t MessageIn::readInt16(const char *const str) { int16_t value = -1; if (mPos + 2 <= mLength) { #if SDL_BYTEORDER == SDL_BIG_ENDIAN int16_t swap; memcpy(&swap, mData + static_cast<size_t>(mPos), sizeof(int16_t)); value = SDL_Swap16(swap); #else memcpy(&value, mData + static_cast<size_t>(mPos), sizeof(int16_t)); #endif } DEBUGLOG2("readInt16: " + toStringPrint(static_cast<unsigned int>( static_cast<uint16_t>(value))), mPos, str); mPos += 2; PacketCounters::incInBytes(2); return value; } int32_t MessageIn::readInt32(const char *const str) { int32_t value = -1; if (mPos + 4 <= mLength) { #if SDL_BYTEORDER == SDL_BIG_ENDIAN int32_t swap; memcpy(&swap, mData + static_cast<size_t>(mPos), sizeof(int32_t)); value = SDL_Swap32(swap); #else memcpy(&value, mData + static_cast<size_t>(mPos), sizeof(int32_t)); #endif } DEBUGLOG2("readInt32: " + toStringPrint(static_cast<unsigned int>(value)), mPos, str); mPos += 4; PacketCounters::incInBytes(4); return value; } BeingId MessageIn::readBeingId(const char *const str) { return fromInt(readInt32(str), BeingId); } int64_t MessageIn::readInt64(const char *const str) { int64_t value = -1; if (mPos + 8 <= mLength) { #if SDL_BYTEORDER == SDL_BIG_ENDIAN int64_t swap; memcpy(&swap, mData + static_cast<size_t>(mPos), sizeof(int64_t)); value = SDL_Swap64(swap); #else memcpy(&value, mData + static_cast<size_t>(mPos), sizeof(int64_t)); #endif } DEBUGLOG2("readInt64: " + toStringPrint(static_cast<unsigned int>(value)), mPos, str); mPos += 8; PacketCounters::incInBytes(8); return value; } } // namespace EAthena