35 lines
873 B
Go
35 lines
873 B
Go
package openvpn
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import (
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"context"
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"errors"
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"fmt"
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"os/exec"
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"strings"
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)
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func (c *Configurator) Version25(ctx context.Context) (version string, err error) {
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return c.version(ctx, binOpenvpn25)
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}
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func (c *Configurator) Version26(ctx context.Context) (version string, err error) {
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return c.version(ctx, binOpenvpn26)
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}
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var ErrVersionTooShort = errors.New("version output is too short")
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func (c *Configurator) version(ctx context.Context, binName string) (version string, err error) {
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cmd := exec.CommandContext(ctx, binName, "--version")
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output, err := c.cmder.Run(cmd)
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if err != nil && err.Error() != "exit status 1" {
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return "", err
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}
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firstLine := strings.Split(output, "\n")[0]
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words := strings.Fields(firstLine)
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const minWords = 2
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if len(words) < minWords {
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return "", fmt.Errorf("%w: %s", ErrVersionTooShort, firstLine)
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}
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return words[1], nil
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}
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