GCC Code Coverage Report
Directory: src/ Exec Total Coverage
File: src/net/messageout.cpp Lines: 0 82 0.0 %
Date: 2018-07-14 Branches: 0 72 0.0 %

Line Branch Exec Source
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/*
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 *  The ManaPlus Client
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 *  Copyright (C) 2004-2009  The Mana World Development Team
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 *  Copyright (C) 2009-2010  The Mana Developers
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 *  Copyright (C) 2011-2018  The ManaPlus Developers
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 *
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 *  This file is part of The ManaPlus Client.
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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 2 of the License, or
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 *  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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#include "net/messageout.h"
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#include "logger.h"
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#include "net/net.h"
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#include "net/packetcounters.h"
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#include "utils/stringutils.h"
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PRAGMA48(GCC diagnostic push)
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PRAGMA48(GCC diagnostic ignored "-Wshadow")
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#include <SDL_endian.h>
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PRAGMA48(GCC diagnostic pop)
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#include "debug.h"
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#ifndef SDL_BIG_ENDIAN
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#error missing SDL_endian.h
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#endif  // SDL_BYTEORDER
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namespace Net
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{
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MessageOut::MessageOut(const int16_t id) :
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    mData(nullptr),
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    mDataSize(0),
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    mPos(0),
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    mId(id),
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    mIgnore(false)
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{
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    PacketCounters::incOutPackets();
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    IGNOREDEBUGLOG;
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    DEBUGLOG2("Send packet", 0, "MessageOut");
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}
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void MessageOut::writeInt8(const int8_t value, const char *const str)
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{
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    expand(1);
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    mData[mPos] = value;
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    DEBUGLOG2("writeInt8:  " + toStringPrint(CAST_U32(
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        CAST_U8(value))),
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        mPos, str);
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    mPos += 1;
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}
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void MessageOut::writeInt16(const int16_t value, const char *const str)
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{
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    expand(2);
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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    int16_t swap = SDL_Swap16(value);
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    memcpy(mData + CAST_SIZE(mPos), &swap, sizeof(int16_t));
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#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
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    memcpy(mData + CAST_SIZE(mPos), &value, sizeof(int16_t));
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#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
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    DEBUGLOG2("writeInt16: " + toStringPrint(CAST_U32(
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        CAST_U16(value))),
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        mPos, str);
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    mPos += 2;
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}
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void MessageOut::writeInt32(const int32_t value, const char *const str)
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{
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    DEBUGLOG2("writeInt32: " + toStringPrint(CAST_U32(value)),
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        mPos, str);
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    expand(4);
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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    int32_t swap = SDL_Swap32(value);
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    memcpy(mData + CAST_SIZE(mPos), &swap, sizeof(int32_t));
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#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
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    memcpy(mData + CAST_SIZE(mPos), &value, sizeof(int32_t));
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#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
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    mPos += 4;
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}
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void MessageOut::writeInt64(const int64_t value, const char *const str)
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{
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    DEBUGLOG2("writeInt64: " + toStringPrint(CAST_U32(value)),
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        mPos, str);
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    expand(8);
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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    int32_t swap = SDL_Swap64(value);
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    memcpy(mData + CAST_SIZE(mPos), &swap, sizeof(int64_t));
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#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN
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    memcpy(mData + CAST_SIZE(mPos), &value, sizeof(int64_t));
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#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN
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    mPos += 8;
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}
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void MessageOut::writeBeingId(const BeingId value, const char *const str)
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{
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    writeInt32(toInt(value, int32_t), str);
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}
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#define LOBYTE(w) (CAST_U8(w))
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#define HIBYTE(w) (CAST_U8((CAST_U16(w)) >> 8))
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void MessageOut::writeCoordinates(const uint16_t x,
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                                  const uint16_t y,
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                                  unsigned char direction,
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                                  const char *const str)
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{
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    DEBUGLOG2(strprintf("writeCoordinates: %u,%u %u",
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        CAST_U32(x),
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        CAST_U32(y),
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        CAST_U32(direction)), mPos, str);
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    unsigned char *const data = reinterpret_cast<unsigned char*>(mData)
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        + CAST_SIZE(mPos);
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    expand(3);
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    mPos += 3;
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    uint16_t temp = x;
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    temp <<= 6;
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    data[0] = 0;
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    data[1] = 1;
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    data[2] = 2;
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    data[0] = HIBYTE(temp);
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    data[1] = CAST_U8(temp);
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    temp = y;
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    temp <<= 4;
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    data[1] |= HIBYTE(temp);
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    data[2] = LOBYTE(temp);
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    direction = toServerDirection(direction);
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    data[2] |= direction;
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}
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void MessageOut::writeString(const std::string &string,
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                             int length,
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                             const char *const str)
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{
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    int stringLength = CAST_S32(string.length());
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    if (length < 0)
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    {
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        // Write the length at the start if not fixed
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        writeInt16(CAST_S16(stringLength), "len");
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        length = stringLength;
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    }
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    else if (length < stringLength)
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    {
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        // Make sure the length of the string is no longer than specified
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        stringLength = length;
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    }
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    expand(length);
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    // Write the actual string
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    memcpy(mData + CAST_SIZE(mPos), string.c_str(), stringLength);
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    // Pad remaining space with zeros
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    if (length > stringLength)
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    {
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        memset(mData + CAST_SIZE(mPos + stringLength),
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            '\0',
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            length - stringLength);
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    }
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    DEBUGLOG2("writeString: " + string, mPos, str);
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    mPos += length;
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}
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void MessageOut::writeStringNoLog(const std::string &string,
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                                  int length,
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                                  const char *const str)
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{
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    int stringLength = CAST_S32(string.length());
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    if (length < 0)
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    {
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        // Write the length at the start if not fixed
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        writeInt16(CAST_S16(stringLength), "len");
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        length = stringLength;
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    }
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    else if (length < stringLength)
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    {
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        // Make sure the length of the string is no longer than specified
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        stringLength = length;
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    }
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    expand(length);
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    // Write the actual string
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    memcpy(mData + CAST_SIZE(mPos), string.c_str(), stringLength);
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    // Pad remaining space with zeros
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    if (length > stringLength)
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    {
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        memset(mData + CAST_SIZE(mPos + stringLength),
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            '\0',
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            length - stringLength);
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    }
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    DEBUGLOG2("writeString: ***", mPos, str);
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    mPos += length;
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}
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const char *MessageOut::getData() const
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{
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    return mData;
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}
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unsigned int MessageOut::getDataSize() const
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{
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    return mDataSize;
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}
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unsigned char MessageOut::toServerDirection(unsigned char direction)
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{
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    // Translate direction to eAthena format
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    switch (direction)
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    {
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        case 1:  // DOWN
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            direction = 0;
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            break;
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        case 3:  // DOWN | LEFT
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            direction = 1;
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            break;
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        case 2:  // LEFT
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            direction = 2;
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            break;
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        case 6:  // LEFT | UP
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            direction = 3;
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            break;
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        case 4:  // UP
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            direction = 4;
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            break;
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        case 12:  // UP | RIGHT
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            direction = 5;
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            break;
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        case 8:  // RIGHT
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            direction = 6;
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            break;
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        case 9:  // RIGHT + DOWN
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            direction = 7;
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            break;
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        default:
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            // OOPSIE! Impossible or unknown
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            direction = CAST_U8(-1);
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            break;
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    }
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    return direction;
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}
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}  // namespace Net