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waddrmgr/db: return ErrBlockNotFound if block doesn't exist

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This commit is contained in:
Wilmer Paulino 2018-11-05 17:06:33 -08:00
parent 33629dcfc2
commit 61a2a8c391
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GPG key ID: 6DF57B9F9514972F
2 changed files with 9 additions and 0 deletions
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5
waddrmgr/db.go
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@ -8,6 +8,7 @@ package waddrmgr
import ( import (
"crypto/sha256" "crypto/sha256"
"encoding/binary" "encoding/binary"
"errors"
"fmt" "fmt"
"time" "time"
@ -1876,6 +1877,10 @@ func fetchBlockHash(ns walletdb.ReadBucket, height int32) (*chainhash.Hash, erro
heightBytes := make([]byte, 4) heightBytes := make([]byte, 4)
binary.BigEndian.PutUint32(heightBytes, uint32(height)) binary.BigEndian.PutUint32(heightBytes, uint32(height))
hashBytes := bucket.Get(heightBytes) hashBytes := bucket.Get(heightBytes)
if hashBytes == nil {
err := errors.New("block not found")
return nil, managerError(ErrBlockNotFound, errStr, err)
}
if len(hashBytes) != 32 { if len(hashBytes) != 32 {
err := fmt.Errorf("couldn't get hash from database") err := fmt.Errorf("couldn't get hash from database")
return nil, managerError(ErrDatabase, errStr, err) return nil, managerError(ErrDatabase, errStr, err)

4
waddrmgr/error.go
View file

@ -135,6 +135,10 @@ const (
// ErrBirthdayBlockNotSet is returned when we attempt to retrieve the // ErrBirthdayBlockNotSet is returned when we attempt to retrieve the
// wallet's birthday but it has not been set yet. // wallet's birthday but it has not been set yet.
ErrBirthdayBlockNotSet ErrBirthdayBlockNotSet
// ErrBlockNotFound is returned when we attempt to retrieve the hash for
// a block that we do not know of.
ErrBlockNotFound
) )
// Map of ErrorCode values back to their constant names for pretty printing. // Map of ErrorCode values back to their constant names for pretty printing.