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net/portmapper: fix invalid UPnP metric name

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Fixes #9551

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I06f3a15a668be621675be6cbc7e5bdcc006e8570
This commit is contained in:
Andrew Dunham
2023-09-27 12:07:49 -04:00
parent 3e298e9380
commit d31460f793
2 changed files with 21 additions and 1 deletions
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11
net/portmapper/portmapper.go
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@ -1040,7 +1040,16 @@ func getUPnPErrorsMetric(code int) *clientmetric.Metric {
return mm
}
mm = clientmetric.NewCounter(fmt.Sprintf("portmap_upnp_errors_with_code_%d", code))
// Metric names cannot contain a hyphen, so we handle negative numbers
// by prefixing the name with a "minus_".
var codeStr string
if code < 0 {
codeStr = fmt.Sprintf("portmap_upnp_errors_with_code_minus_%d", -code)
} else {
codeStr = fmt.Sprintf("portmap_upnp_errors_with_code_%d", code)
}
mm = clientmetric.NewCounter(codeStr)
mak.Set(&metricUPnPErrorsByCode, code, mm)
return mm
}