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Force qemu to use a VNC port by setting vnc_min_port == vnc_max_port

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Similar to Issue #1288, this prevents a crash when we set the VNC
minimum port equivalent to the VNC maximum port
This commit is contained in:
Bob Kuo 2015-06-17 14:31:55 -05:00
parent b2609db395
commit b77fcd90f3
1 changed files with 6 additions and 1 deletions
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7
builder/qemu/step_configure_vnc.go
View file

@ -32,7 +32,12 @@ func (stepConfigureVNC) Run(state multistep.StateBag) multistep.StepAction {
var vncPort uint
portRange := int(config.VNCPortMax - config.VNCPortMin)
for {
vncPort = uint(rand.Intn(portRange)) + config.VNCPortMin
if portRange > 0 {
vncPort = uint(rand.Intn(portRange)) + config.VNCPortMin
} else {
vncPort = config.VNCPortMin
}
log.Printf("Trying port: %d", vncPort)
l, err := net.Listen("tcp", fmt.Sprintf(":%d", vncPort))
if err == nil {