44 lines
891 B
Go
44 lines
891 B
Go
package vmware
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import (
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"bytes"
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"errors"
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"os/exec"
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"regexp"
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)
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// Interface to help find the host IP that is available from within
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// the VMware virtual machines.
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type HostIPFinder interface {
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HostIP() (string, error)
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}
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// IfconfigIPFinder finds the host IP based on the output of `ifconfig`.
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type IfconfigIPFinder struct {
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Device string
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}
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func (f *IfconfigIPFinder) HostIP() (string, error) {
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ifconfigPath, err := exec.LookPath("ifconfig")
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if err != nil {
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return "", err
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}
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stdout := new(bytes.Buffer)
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cmd := exec.Command(ifconfigPath, f.Device)
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cmd.Stdout = stdout
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cmd.Stderr = new(bytes.Buffer)
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if err := cmd.Run(); err != nil {
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return "", err
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}
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re := regexp.MustCompile(`inet\s*(?:addr:)?(.+?)\s`)
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matches := re.FindStringSubmatch(stdout.String())
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if matches == nil {
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return "", errors.New("IP not found in ifconfig output...")
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}
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return matches[1], nil
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}
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