tailcfg: NetInfo.String: handle nil object without panicing
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>reviewable/pr210/r2
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b6f77cc48d
commit
e60b433831
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@ -286,6 +286,9 @@ type NetInfo struct {
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}
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func (ni *NetInfo) String() string {
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if ni == nil {
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return "NetInfo(nil)"
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}
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return fmt.Sprintf("NetInfo{varies=%v hairpin=%v ipv6=%v udp=%v derp=#%v link=%q}",
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ni.MappingVariesByDestIP, ni.HairPinning, ni.WorkingIPv6,
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ni.WorkingUDP, ni.PreferredDERP, ni.LinkType)
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