7c5fccd7a8
This code is borrowed from libcontainer system package. Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
36 lines
743 B
Go
36 lines
743 B
Go
package utils
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import (
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"bytes"
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"os/exec"
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"syscall"
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)
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const PR_SET_CHILD_SUBREAPER = 36
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func ExecCmd(name string, args ...string) (string, error) {
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cmd := exec.Command(name, args...)
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var out bytes.Buffer
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cmd.Stdout = &out
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err := cmd.Run()
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if err != nil {
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return "", err
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}
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return out.String(), nil
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}
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// SetSubreaper sets the value i as the subreaper setting for the calling process
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func SetSubreaper(i int) error {
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return Prctl(PR_SET_CHILD_SUBREAPER, uintptr(i), 0, 0, 0)
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}
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// Prctl is a way to make the prctl linux syscall
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func Prctl(option int, arg2, arg3, arg4, arg5 uintptr) (err error) {
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_, _, e1 := syscall.Syscall6(syscall.SYS_PRCTL, uintptr(option), arg2, arg3, arg4, arg5, 0)
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if e1 != 0 {
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err = e1
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}
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return
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}
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