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@@ -3,7 +3,13 @@
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package binfmt_misc
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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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@@ -12,3 +18,34 @@ func withChroot(cmd *exec.Cmd, dir string) {
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Chroot: dir,
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}
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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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+
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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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+
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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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+
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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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+
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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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