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| author | Martin Holst Swende <martin@swende.se> | 2019-02-16 23:16:12 +0800 |
|---|---|---|
| committer | Péter Szilágyi <peterke@gmail.com> | 2019-02-19 16:59:57 +0800 |
| commit | a458153098d6f66ee0c6f990f31b3646ad171bbb (patch) | |
| tree | 427e794bdb4c258fa8f8422ecbbcf3a83d44b536 | |
| parent | fe5258b41ea2e363aea1494dcf52754fea9b42db (diff) | |
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trie: fix error in node decoding (#19111)
| -rw-r--r-- | trie/encoding.go | 3 | ||||
| -rw-r--r-- | trie/trie_test.go | 13 |
2 files changed, 16 insertions, 0 deletions
diff --git a/trie/encoding.go b/trie/encoding.go index 5f120de63..1955a3e66 100644 --- a/trie/encoding.go +++ b/trie/encoding.go @@ -52,6 +52,9 @@ func hexToCompact(hex []byte) []byte { } func compactToHex(compact []byte) []byte { + if len(compact) == 0 { + return compact + } base := keybytesToHex(compact) // delete terminator flag if base[0] < 2 { diff --git a/trie/trie_test.go b/trie/trie_test.go index f9d6029c9..4d84aa96c 100644 --- a/trie/trie_test.go +++ b/trie/trie_test.go @@ -614,3 +614,16 @@ func updateString(trie *Trie, k, v string) { func deleteString(trie *Trie, k string) { trie.Delete([]byte(k)) } + +func TestDecodeNode(t *testing.T) { + t.Parallel() + var ( + hash = make([]byte, 20) + elems = make([]byte, 20) + ) + for i := 0; i < 5000000; i++ { + rand.Read(hash) + rand.Read(elems) + decodeNode(hash, elems, 1) + } +} |