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https://github.com/coredns/coredns.git
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594d6c9121
This PR fixes race condition in file plugin closer Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
29 lines
536 B
Go
29 lines
536 B
Go
package file
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import (
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"github.com/coredns/coredns/plugin/file/tree"
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"github.com/miekg/dns"
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)
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// ClosestEncloser returns the closest encloser for qname.
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func (z *Zone) ClosestEncloser(qname string) (*tree.Elem, bool) {
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_, zoneTree := z.snapshot()
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if zoneTree == nil {
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return nil, false
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}
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offset, end := dns.NextLabel(qname, 0)
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for !end {
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elem, _ := zoneTree.Search(qname)
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if elem != nil {
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return elem, true
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}
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qname = qname[offset:]
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offset, end = dns.NextLabel(qname, 0)
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}
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return zoneTree.Search(z.origin)
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}
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