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Fixed a temporary solution of server shutting down to an assert(0) when a too large block metadata is sent to an old client

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This commit is contained in:
Perttu Ahola 2011-05-03 17:33:51 +03:00
parent 821d5bb4cc
commit 59c4a342a9
2 changed files with 14 additions and 4 deletions
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14
src/mapblock.cpp
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@ -2109,9 +2109,17 @@ void MapBlock::serialize(std::ostream &os, u8 version)
{ {
if(version <= 15) if(version <= 15)
{ {
std::ostringstream oss(std::ios_base::binary); try{
m_node_metadata.serialize(oss); std::ostringstream oss(std::ios_base::binary);
os<<serializeString(oss.str()); m_node_metadata.serialize(oss);
os<<serializeString(oss.str());
}
// This will happen if the string is longer than 65535
catch(SerializationError &e)
{
// Use an empty string
os<<serializeString("");
}
} }
else else
{ {

4
src/utility.h
View File

@ -1911,7 +1911,9 @@ inline v3f intToFloat(v3s16 p, f32 d)
// Creates a string with the length as the first two bytes // Creates a string with the length as the first two bytes
inline std::string serializeString(const std::string &plain) inline std::string serializeString(const std::string &plain)
{ {
assert(plain.size() <= 65535); //assert(plain.size() <= 65535);
if(plain.size() > 65535)
throw SerializationError("String too long for serializeString");
char buf[2]; char buf[2];
writeU16((u8*)&buf[0], plain.size()); writeU16((u8*)&buf[0], plain.size());
std::string s; std::string s;