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Fix writing to buffer out of bounds warning

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This commit is contained in:
Dale Glass 2022-06-05 13:21:46 +02:00
parent 118315469c
commit 0d038be031
1 changed files with 3 additions and 11 deletions
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14
libraries/entities/src/EntityItemProperties.cpp
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@ -3977,24 +3977,16 @@ QVector<vec3> EntityItemProperties::unpackStrokeColors(const QByteArray& strokeC
// edit packet sender...
bool EntityItemProperties::encodeEraseEntityMessage(const EntityItemID& entityItemID, QByteArray& buffer) {
char* copyAt = buffer.data();
uint16_t numberOfIds = 1; // only one entity ID in this message
int outputLength = 0;
if (buffer.size() < (int)(sizeof(numberOfIds) + NUM_BYTES_RFC4122_UUID)) {
qCDebug(entities) << "ERROR - encodeEraseEntityMessage() called with buffer that is too small!";
return false;
}
memcpy(copyAt, &numberOfIds, sizeof(numberOfIds));
copyAt += sizeof(numberOfIds);
outputLength = sizeof(numberOfIds);
memcpy(copyAt, entityItemID.toRfc4122().constData(), NUM_BYTES_RFC4122_UUID);
outputLength += NUM_BYTES_RFC4122_UUID;
buffer.resize(outputLength);
buffer.resize(0);
buffer.append(reinterpret_cast<char*>(&numberOfIds), sizeof(numberOfIds));
buffer.append(entityItemID.toRfc4122().constData(), NUM_BYTES_RFC4122_UUID);
return true;
}