71 lines
1.2 KiB
Go
71 lines
1.2 KiB
Go
package docker
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import (
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"bytes"
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"github.com/dotcloud/docker/utils"
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"strconv"
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"strings"
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"syscall"
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)
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// FIXME: Move this to utils package
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func getKernelVersion() (*utils.KernelVersionInfo, error) {
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var (
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uts syscall.Utsname
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flavor string
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kernel, major, minor int
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err error
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)
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if err := syscall.Uname(&uts); err != nil {
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return nil, err
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}
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release := make([]byte, len(uts.Release))
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i := 0
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for _, c := range uts.Release {
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release[i] = byte(c)
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i++
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}
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// Remove the \x00 from the release for Atoi to parse correctly
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release = release[:bytes.IndexByte(release, 0)]
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tmp := strings.SplitN(string(release), "-", 2)
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tmp2 := strings.SplitN(tmp[0], ".", 3)
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if len(tmp2) > 0 {
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kernel, err = strconv.Atoi(tmp2[0])
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if err != nil {
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return nil, err
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}
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}
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if len(tmp2) > 1 {
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major, err = strconv.Atoi(tmp2[1])
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if err != nil {
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return nil, err
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}
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}
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if len(tmp2) > 2 {
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minor, err = strconv.Atoi(tmp2[2])
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if err != nil {
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return nil, err
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}
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}
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if len(tmp) == 2 {
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flavor = tmp[1]
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} else {
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flavor = ""
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}
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return &utils.KernelVersionInfo{
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Kernel: kernel,
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Major: major,
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Minor: minor,
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Flavor: flavor,
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}, nil
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}
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