Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

eth/protocols/snap, trie: better error-handling #23657

Merged
merged 1 commit into from
Sep 29, 2021
Merged

eth/protocols/snap, trie: better error-handling #23657

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion eth/protocols/snap/handler.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -469,7 +469,7 @@ func handleMessage(backend Backend, peer *Peer) error {
// Storage slots requested, open the storage trie and retrieve from there
account, err := snap.Account(common.BytesToHash(pathset[0]))
loads++ // always account database reads, even for failures
if err != nil {
if err != nil || account == nil {
break
}
stTrie, err := trie.NewSecure(common.BytesToHash(account.Root), triedb)
Expand Down
8 changes: 4 additions & 4 deletions trie/trie.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -174,6 +174,10 @@ func (t *Trie) TryGetNode(path []byte) ([]byte, int, error) {
}

func (t *Trie) tryGetNode(origNode node, path []byte, pos int) (item []byte, newnode node, resolved int, err error) {
// If non-existent path requested, abort
if origNode == nil {
return nil, nil, 0, nil
}
// If we reached the requested path, return the current node
if pos >= len(path) {
// Although we most probably have the original node expanded, encoding
Expand All @@ -193,10 +197,6 @@ func (t *Trie) tryGetNode(origNode node, path []byte, pos int) (item []byte, new
}
// Path still needs to be traversed, descend into children
switch n := (origNode).(type) {
case nil:
// Non-existent path requested, abort
return nil, nil, 0, nil

case valueNode:
// Path prematurely ended, abort
return nil, nil, 0, nil
Expand Down