I need to run a process called osqueryi before I run my app, and when shutting down, killing that process. (It is kind of a daemon which can be queried. I need it to be running in order for my app to work).
func bootOsqueryi(strcmd string) {
cwd, err := os.Getwd()
if err != nil {
panic(err)
}
pa := os.ProcAttr{
Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
Dir: cwd,
}
path, err := exec.LookPath(strcmd)
if err != nil {
handleError(err)
return
}
osqueryi, err := os.StartProcess(path, []string{strcmd}, &pa)
if err != nil {
handleError(err)
return
}
osqueryi.Wait()
}
I call this from a cobra PersistentPreRun hook like this: go bootOsqueryi("osqueryi").
In the PersistentPostRun hook I shut it just down:
func shutdown() {
if osqueryi != nil {
osqueryi.Kill()
}
}
Osqueryi is like an interactive shell. It needs to be passed os.Stdin, because apparently it uses isatty. If I don't do that, it doesn't run. So I need to start this process because I need to query it but I don't need to write any input to it because the idea is to use a go module osquery-go to issue queries from my app...
I need to call it in a go routine because otherwise I can't write log output to the screen...
In any case, it kinda works well. BUT, when the app terminates, my terminal is messed up: my prompt line is missing (can't see what I type). I guess, because I am assigning it STDIN but I am never writing to it and in the meanwhile writing output to STDOUT via fmt.Println().
Is there a way to make this work?
