d0s3t3ch/wownero
1
0
Fork 0
mirror of https://git.wownero.com/wownero/wownero.git synced 2024-08-15 01:03:23 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #17 from moneromooo-monero/blockchain

Browse source 
db_lmdb: catch attempt to remove block from an empty blockchain
db_lmdb: do not give the group database write permissions
This commit is contained in:
Thomas Winget 2014-12-12 18:45:29 -05:00 committed by warptangent
commit 5baf9d9eb3
1 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/cryptonote_core/BlockchainDB_impl/db_lmdb.cpp
View file

@ -207,6 +207,9 @@ void BlockchainLMDB::remove_block()
LOG_PRINT_L3("BlockchainLMDB::" << __func__); LOG_PRINT_L3("BlockchainLMDB::" << __func__);
check_open(); check_open();
if (m_height == 0)
throw0(BLOCK_DNE ("Attempting to remove block from an empty blockchain"));
MDB_val_copy<uint64_t> k(m_height - 1); MDB_val_copy<uint64_t> k(m_height - 1);
MDB_val h; MDB_val h;
if (mdb_get(*m_write_txn, m_block_hashes, &k, &h)) if (mdb_get(*m_write_txn, m_block_hashes, &k, &h))
@ -527,7 +530,7 @@ void BlockchainLMDB::open(const std::string& filename)
size_t mapsize = 1LL << 34; size_t mapsize = 1LL << 34;
if (auto result = mdb_env_set_mapsize(m_env, mapsize)) if (auto result = mdb_env_set_mapsize(m_env, mapsize))
throw0(DB_ERROR(std::string("Failed to set max memory map size: ").append(mdb_strerror(result)).c_str())); throw0(DB_ERROR(std::string("Failed to set max memory map size: ").append(mdb_strerror(result)).c_str()));
if (auto result = mdb_env_open(m_env, filename.c_str(), 0, 0664)) if (auto result = mdb_env_open(m_env, filename.c_str(), 0, 0644))
throw0(DB_ERROR(std::string("Failed to open lmdb environment: ").append(mdb_strerror(result)).c_str())); throw0(DB_ERROR(std::string("Failed to open lmdb environment: ").append(mdb_strerror(result)).c_str()));
// get a read/write MDB_txn // get a read/write MDB_txn