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49cb288df3
We now use the golang error wrapping format specifier `%w` instead of the deprecated github.com/pkg/errors package. [NO NEW TESTS NEEDED] Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
26 lines
556 B
Go
26 lines
556 B
Go
package utils
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import (
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"fmt"
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"net"
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"strconv"
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)
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// Find a random, open port on the host.
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func GetRandomPort() (int, error) {
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l, err := net.Listen("tcp", ":0")
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if err != nil {
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return 0, fmt.Errorf("unable to get free TCP port: %w", err)
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}
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defer l.Close()
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_, randomPort, err := net.SplitHostPort(l.Addr().String())
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if err != nil {
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return 0, fmt.Errorf("unable to determine free port: %w", err)
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}
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rp, err := strconv.Atoi(randomPort)
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if err != nil {
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return 0, fmt.Errorf("unable to convert random port to int: %w", err)
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}
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return rp, nil
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}
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