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Fix crash if the len was < maxSetStringLen

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If the len was less than the max length, there was a panic

Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
This commit is contained in:
Flavio Crisciani 2018-03-01 09:24:36 -08:00
parent 5bbc19d7fe
commit 1f55734d4c
1 changed files with 8 additions and 2 deletions
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10
libnetwork/service_common.go
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@ -287,7 +287,10 @@ func (c *controller) addServiceBinding(svcName, svcID, nID, eID, containerName s
ok, entries := s.assignIPToEndpoint(ip.String(), eID)
if !ok || entries > 1 {
setStr, b := s.printIPToEndpoint(ip.String())
logrus.Warnf("addServiceBinding %s possible transient state ok:%t entries:%d set:%t %s", eID, ok, entries, b, setStr[:maxSetStringLen])
if len(setStr) > maxSetStringLen {
setStr = setStr[:maxSetStringLen]
}
logrus.Warnf("addServiceBinding %s possible transient state ok:%t entries:%d set:%t %s", eID, ok, entries, b, setStr)
}
// Add loadbalancer service and backend in all sandboxes in
@ -355,7 +358,10 @@ func (c *controller) rmServiceBinding(svcName, svcID, nID, eID, containerName st
ok, entries := s.removeIPToEndpoint(ip.String(), eID)
if !ok || entries > 0 {
setStr, b := s.printIPToEndpoint(ip.String())
logrus.Warnf("rmServiceBinding %s possible transient state ok:%t entries:%d set:%t %s", eID, ok, entries, b, setStr[:maxSetStringLen])
if len(setStr) > maxSetStringLen {
setStr = setStr[:maxSetStringLen]
}
logrus.Warnf("rmServiceBinding %s possible transient state ok:%t entries:%d set:%t %s", eID, ok, entries, b, setStr)
}
// Remove loadbalancer service(if needed) and backend in all