3 files changed, 8 insertions, 6 deletions
diff --git a/src/node/blockstorage.cpp b/src/node/blockstorage.cpp
index 96cf69927c..65d51417b1 100644
--- a/src/node/blockstorage.cpp
+++ b/src/node/blockstorage.cpp
@@ -683,7 +683,7 @@ bool BlockManager::UndoWriteToDisk(const CBlockUndo& blockundo, FlatFilePos& pos
     fileout << GetParams().MessageStart() << nSize;
 
     // Write undo data
-    long fileOutPos = ftell(fileout.Get());
+    long fileOutPos = fileout.tell();
     if (fileOutPos < 0) {
         LogError("%s: ftell failed\n", __func__);
         return false;
@@ -981,7 +981,7 @@ bool BlockManager::WriteBlockToDisk(const CBlock& block, FlatFilePos& pos) const
     fileout << GetParams().MessageStart() << nSize;
 
     // Write block
-    long fileOutPos = ftell(fileout.Get());
+    long fileOutPos = fileout.tell();
     if (fileOutPos < 0) {
         LogError("%s: ftell failed\n", __func__);
         return false;
diff --git a/src/node/mempool_persist.cpp b/src/node/mempool_persist.cpp
index a265c2e12d..ff7de8c64a 100644
--- a/src/node/mempool_persist.cpp
+++ b/src/node/mempool_persist.cpp
@@ -199,8 +199,8 @@ bool DumpMempool(const CTxMemPool& pool, const fs::path& dump_path, FopenFn mock
         LogInfo("Writing %d unbroadcast transactions to file.\n", unbroadcast_txids.size());
         file << unbroadcast_txids;
 
-        if (!skip_file_commit && !FileCommit(file.Get()))
-            throw std::runtime_error("FileCommit failed");
+        if (!skip_file_commit && !file.Commit())
+            throw std::runtime_error("Commit failed");
         file.fclose();
         if (!RenameOver(dump_path + ".new", dump_path)) {
             throw std::runtime_error("Rename failed");
diff --git a/src/node/utxo_snapshot.cpp b/src/node/utxo_snapshot.cpp
index 976421e455..7d589c886b 100644
--- a/src/node/utxo_snapshot.cpp
+++ b/src/node/utxo_snapshot.cpp
@@ -73,9 +73,11 @@ std::optional<uint256> ReadSnapshotBaseBlockhash(fs::path chaindir)
     }
     afile >> base_blockhash;
 
-    if (std::fgetc(afile.Get()) != EOF) {
+    int64_t position = afile.tell();
+    afile.seek(0, SEEK_END);
+    if (position != afile.tell()) {
         LogPrintf("[snapshot] warning: unexpected trailing data in %s\n", read_from_str);
-    } else if (std::ferror(afile.Get())) {
+    } else if (afile.IsError()) {
         LogPrintf("[snapshot] warning: i/o error reading %s\n", read_from_str);
     }
     return base_blockhash;