diff options
Diffstat (limited to '')
| -rw-r--r-- | src/WorldStorage/WSSAnvil.cpp | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp index 239f4a155..fe309ce4e 100644 --- a/src/WorldStorage/WSSAnvil.cpp +++ b/src/WorldStorage/WSSAnvil.cpp @@ -323,7 +323,13 @@ bool cWSSAnvil::LoadChunkFromNBT(const cChunkCoords & a_Chunk, const cParsedNBT return false; } int Sections = a_NBT.FindChildByName(Level, "Sections"); - if ((Sections < 0) || (a_NBT.GetType(Sections) != TAG_List) || (a_NBT.GetChildrenType(Sections) != TAG_Compound)) + if ((Sections < 0) || (a_NBT.GetType(Sections) != TAG_List)) + { + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); + return false; + } + eTagType SectionsType = a_NBT.GetChildrenType(Sections); + if ((SectionsType != TAG_Compound) && (SectionsType != TAG_End)) { LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; @@ -589,7 +595,7 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con // Get the BlockEntity's position int x, y, z; - if (!GetBlockEntityNBTPos(a_NBT, Child, x, y, z)) + if (!GetBlockEntityNBTPos(a_NBT, Child, x, y, z) || (y < 0) || (y >= cChunkDef::Height)) { LOGWARNING("Bad block entity, missing the coords. Will be ignored."); continue; @@ -617,6 +623,8 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con cBlockEntity * cWSSAnvil::LoadBlockEntityFromNBT(const cParsedNBT & a_NBT, int a_Tag, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) { + ASSERT((a_BlockY >= 0) && (a_BlockY < cChunkDef::Height)); + // Load the specific BlockEntity type: switch (a_BlockType) { @@ -2815,7 +2823,7 @@ bool cWSSAnvil::cMCAFile::GetChunkData(const cChunkCoords & a_Chunk, AString & a } unsigned ChunkLocation = ntohl(m_Header[LocalX + 32 * LocalZ]); unsigned ChunkOffset = ChunkLocation >> 8; - if (ChunkOffset <= 2) + if (ChunkOffset < 2) { return false; } @@ -2905,7 +2913,13 @@ bool cWSSAnvil::cMCAFile::SetChunkData(const cChunkCoords & a_Chunk, const AStri // Store the header: ChunkSize = ((u_long)a_Data.size() + MCA_CHUNK_HEADER_LENGTH + 4095) / 4096; // Round data size *up* to nearest 4KB sector, make it a sector number - ASSERT(ChunkSize < 256); + if (ChunkSize > 255) + { + LOGWARNING("Cannot save chunk [%d, %d], the data is too large (%u KiB, maximum is 1024 KiB). Remove some entities and retry.", + a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ, (unsigned)(ChunkSize * 4) + ); + return false; + } m_Header[LocalX + 32 * LocalZ] = htonl((ChunkSector << 8) | ChunkSize); if (m_File.Seek(0) < 0) { |