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Consistent usage of ValidateMessage() in level 3 packets

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This commit is contained in:
Dan Paulat 2022-01-14 19:46:32 -06:00
parent 7a9582a689
commit 03fdd99585
5 changed files with 146 additions and 102 deletions
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63
wxdata/source/scwx/wsr88d/rpg/unlinked_vector_packet.cpp
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@ -82,6 +82,8 @@ bool UnlinkedVectorPacket::Parse(std::istream& is)
{
bool blockValid = true;
std::streampos isBegin = is.tellg();
is.read(reinterpret_cast<char*>(&p->packetCode_), 2);
is.read(reinterpret_cast<char*>(&p->lengthOfBlock_), 2);
@ -102,34 +104,6 @@ bool UnlinkedVectorPacket::Parse(std::istream& is)
vectorSize -= 2;
}
// The number of vectors is equal to the size divided by the number of bytes
// in a vector
int vectorCount = vectorSize / 8;
p->beginI_.resize(vectorCount);
p->beginJ_.resize(vectorCount);
p->endI_.resize(vectorCount);
p->endJ_.resize(vectorCount);
for (int v = 0; v < vectorCount && !is.eof(); v++)
{
is.read(reinterpret_cast<char*>(&p->beginI_[v]), 2);
is.read(reinterpret_cast<char*>(&p->beginJ_[v]), 2);
is.read(reinterpret_cast<char*>(&p->endI_[v]), 2);
is.read(reinterpret_cast<char*>(&p->endJ_[v]), 2);
p->beginI_[v] = ntohs(p->beginI_[v]);
p->beginJ_[v] = ntohs(p->beginJ_[v]);
p->endI_[v] = ntohs(p->endI_[v]);
p->endJ_[v] = ntohs(p->endJ_[v]);
}
if (is.eof())
{
BOOST_LOG_TRIVIAL(debug) << logPrefix_ << "Reached end of file";
blockValid = false;
}
else
{
if (p->packetCode_ != 7 && p->packetCode_ != 10)
@ -140,6 +114,39 @@ bool UnlinkedVectorPacket::Parse(std::istream& is)
}
}
if (blockValid)
{
// The number of vectors is equal to the size divided by the number of
// bytes in a vector
int vectorCount = vectorSize / 8;
p->beginI_.resize(vectorCount);
p->beginJ_.resize(vectorCount);
p->endI_.resize(vectorCount);
p->endJ_.resize(vectorCount);
for (int v = 0; v < vectorCount && !is.eof(); v++)
{
is.read(reinterpret_cast<char*>(&p->beginI_[v]), 2);
is.read(reinterpret_cast<char*>(&p->beginJ_[v]), 2);
is.read(reinterpret_cast<char*>(&p->endI_[v]), 2);
is.read(reinterpret_cast<char*>(&p->endJ_[v]), 2);
p->beginI_[v] = ntohs(p->beginI_[v]);
p->beginJ_[v] = ntohs(p->beginJ_[v]);
p->endI_[v] = ntohs(p->endI_[v]);
p->endJ_[v] = ntohs(p->endJ_[v]);
}
}
std::streampos isEnd = is.tellg();
std::streamoff bytesRead = isEnd - isBegin;
if (!ValidateMessage(is, bytesRead))
{
blockValid = false;
}
return blockValid;
}