diff options
Diffstat (limited to '')
| -rw-r--r-- | src/WorldStorage/WSSAnvil.cpp | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp index e79cc291d..0c31d8b02 100644 --- a/src/WorldStorage/WSSAnvil.cpp +++ b/src/WorldStorage/WSSAnvil.cpp @@ -69,6 +69,18 @@ Since only the header is actually in the memory, this number can be high, but st /// The maximum size of an inflated chunk; raw chunk data is 192 KiB, allow 64 KiB more of entities #define CHUNK_INFLATE_MAX 256 KiB +#define LOAD_FAILED(CHX, CHZ) \ + { \ + const int RegionX = FAST_FLOOR_DIV(CHX, 32); \ + const int RegionZ = FAST_FLOOR_DIV(CHZ, 32); \ + LOGERROR("%s (%d): Loading chunk [%d, %d] from file r.%d.%d.mca failed. " \ + "The server will now abort in order to avoid further data loss. " \ + "Please add the reported file and this message to the issue report.", \ + __FUNCTION__, __LINE__, CHX, CHZ, RegionX, RegionZ \ + ); \ + *((int *)0) = 0; /* Crash intentionally */ \ + } + @@ -263,6 +275,7 @@ bool cWSSAnvil::LoadChunkFromData(const cChunkCoords & a_Chunk, const AString & inflateEnd(&strm); if (res != Z_STREAM_END) { + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; } @@ -271,6 +284,7 @@ bool cWSSAnvil::LoadChunkFromData(const cChunkCoords & a_Chunk, const AString & if (!NBT.IsValid()) { // NBT Parsing failed + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; } @@ -317,11 +331,13 @@ bool cWSSAnvil::LoadChunkFromNBT(const cChunkCoords & a_Chunk, const cParsedNBT int Level = a_NBT.FindChildByName(0, "Level"); if (Level < 0) { + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; } int Sections = a_NBT.FindChildByName(Level, "Sections"); if ((Sections < 0) || (a_NBT.GetType(Sections) != TAG_List) || (a_NBT.GetChildrenType(Sections) != TAG_Compound)) { + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; } for (int Child = a_NBT.GetFirstChild(Sections); Child >= 0; Child = a_NBT.GetNextSibling(Child)) @@ -2811,30 +2827,42 @@ 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) + { + return false; + } m_File.Seek((int)ChunkOffset * 4096); int ChunkSize = 0; if (m_File.Read(&ChunkSize, 4) != 4) { + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; } ChunkSize = ntohl((u_long)ChunkSize); char CompressionType = 0; if (m_File.Read(&CompressionType, 1) != 1) { + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; } if (CompressionType != 2) { // Chunk is in an unknown compression + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); return false; } ChunkSize--; // HACK: This depends on the internal knowledge that AString's data() function returns the internal buffer directly a_Data.assign(ChunkSize, '\0'); - return (m_File.Read((void *)a_Data.data(), ChunkSize) == ChunkSize); + if (m_File.Read((void *)a_Data.data(), ChunkSize) == ChunkSize) + { + return true; + } + LOAD_FAILED(a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ); + return false; } |