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22 lines
523 B
Go
22 lines
523 B
Go
// Package netutil contains various functions that help with networking.
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package netutil
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import "net"
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// AllocatePorts allocates random ports suitable for listening.
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func AllocatePorts(count int) ([]string, error) {
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var ports []string
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for i := 0; i < count; i++ {
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li, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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return nil, err
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}
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_, port, _ := net.SplitHostPort(li.Addr().String())
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err = li.Close()
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if err != nil {
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return nil, err
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}
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ports = append(ports, port)
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}
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return ports, nil
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}
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