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-rw-r--r--src/wallet/db.cpp5
-rwxr-xr-xtest/functional/walletbackup.py10
2 files changed, 15 insertions, 0 deletions
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
index 459d289a42..5d48b01c2e 100644
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -705,6 +705,11 @@ bool CWalletDBWrapper::Backup(const std::string& strDest)
pathDest /= strFile;
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);
LogPrintf("copied %s to %s\n", strFile, pathDest.string());
return true;
diff --git a/test/functional/walletbackup.py b/test/functional/walletbackup.py
index 15ea26afa1..85a149793e 100755
--- a/test/functional/walletbackup.py
+++ b/test/functional/walletbackup.py
@@ -190,6 +190,16 @@ class WalletBackupTest(BitcoinTestFramework):
assert_equal(self.nodes[1].getbalance(), balance1)
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__':
WalletBackupTest().main()