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use listen to ensure the port is free (#6990) #7467

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merged 1 commit into from
Aug 9, 2021
Merged

use listen to ensure the port is free (#6990) #7467

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8 changes: 4 additions & 4 deletions internal/net/net.go
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Original file line number Diff line number Diff line change
Expand Up @@ -29,12 +29,12 @@ func IsIPV6(ip _net.IP) bool {

// IsPortAvailable checks if a TCP port is available or not
func IsPortAvailable(p int) bool {
conn, err := _net.Dial("tcp", fmt.Sprintf(":%v", p))
ln, err := _net.Listen("tcp", fmt.Sprintf(":%v", p))
if err != nil {
return true
return false
}
defer conn.Close()
return false
defer ln.Close()
return true
}

// IsIPv6Enabled checks if IPV6 is enabled or not and we have
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