52 lines
804 B
Go
52 lines
804 B
Go
// +build !windows
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package archutil
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import (
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"bytes"
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"compress/gzip"
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"io"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"syscall"
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)
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func withChroot(cmd *exec.Cmd, dir string) {
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cmd.SysProcAttr = &syscall.SysProcAttr{
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Chroot: dir,
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}
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}
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func check(bin string) error {
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tmpdir, err := ioutil.TempDir("", "qemu-check")
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if err != nil {
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return err
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}
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defer os.RemoveAll(tmpdir)
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pp := filepath.Join(tmpdir, "check")
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r, err := gzip.NewReader(bytes.NewReader([]byte(bin)))
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if err != nil {
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return err
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}
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defer r.Close()
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f, err := os.OpenFile(pp, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0700)
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if err != nil {
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return err
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}
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if _, err := io.Copy(f, r); err != nil {
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f.Close()
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return err
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}
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f.Close()
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cmd := exec.Command("/check")
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withChroot(cmd, tmpdir)
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err = cmd.Run()
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return err
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}
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