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Merge #11376: Ensure backupwallet fails when attempting to backup to source file

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5d465e396 Ensure backupwallet fails when attempting to backup to source file (Tomas van der Wansem)

Pull request description:

  Previous behaviour was to destroy the wallet (to zero-length)

  This fixes #11375

Tree-SHA512: bfd1738659b15e3f23b6bbdf55ec12269c62c820bf701daec19500b52bd5845bb5516733c6f76f36197eb155182a8a35dc239ad4de2ef1e59bbb0f124a455759
This commit is contained in:
MarcoFalke 2017-11-01 12:26:23 -04:00
commit 1b8c88451b
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2 changed files with 15 additions and 0 deletions
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5
src/wallet/db.cpp
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@ -705,6 +705,11 @@ bool CWalletDBWrapper::Backup(const std::string& strDest)
pathDest /= strFile; pathDest /= strFile;
try { try {
if (fs::equivalent(pathSrc, pathDest)) {
LogPrintf("cannot backup to wallet source file %s\n", pathDest.string());
return false;
}
fs::copy_file(pathSrc, pathDest, fs::copy_option::overwrite_if_exists); fs::copy_file(pathSrc, pathDest, fs::copy_option::overwrite_if_exists);
LogPrintf("copied %s to %s\n", strFile, pathDest.string()); LogPrintf("copied %s to %s\n", strFile, pathDest.string());
return true; return true;

10
test/functional/walletbackup.py
View File

@ -190,6 +190,16 @@ class WalletBackupTest(BitcoinTestFramework):
assert_equal(self.nodes[1].getbalance(), balance1) assert_equal(self.nodes[1].getbalance(), balance1)
assert_equal(self.nodes[2].getbalance(), balance2) assert_equal(self.nodes[2].getbalance(), balance2)
# Backup to source wallet file must fail
sourcePaths = [
tmpdir + "/node0/regtest/wallet.dat",
tmpdir + "/node0/./regtest/wallet.dat",
tmpdir + "/node0/regtest/",
tmpdir + "/node0/regtest"]
for sourcePath in sourcePaths:
assert_raises_rpc_error(-4, "backup failed", self.nodes[0].backupwallet, sourcePath)
if __name__ == '__main__': if __name__ == '__main__':
WalletBackupTest().main() WalletBackupTest().main()