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Prevent failure index underflow

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rkfg 2022-09-09 19:16:18 +03:00
parent 4a84505a83
commit 8e4521e033
1 changed files with 6 additions and 0 deletions
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6
payment.go
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@ -51,6 +51,12 @@ func (r *regolancer) pay(ctx context.Context, invoice *lnrpc.AddInvoiceResponse,
return fmt.Errorf("error: %s @ %d", result.Failure.Code.String(),
result.Failure.FailureSourceIndex)
}
if result.Failure.FailureSourceIndex == 0 {
log.Print(errColorF("%s (unexpected hop index %d, should be greater than 0)", result.Failure.Code.String(),
result.Failure.FailureSourceIndex))
return fmt.Errorf("error: %s @ %d", result.Failure.Code.String(),
result.Failure.FailureSourceIndex)
}
nodeCtx, cancel := context.WithTimeout(ctx, time.Minute)
defer cancel()
node1, err := r.getNodeInfo(nodeCtx, route.Hops[result.Failure.FailureSourceIndex-1].PubKey)