import io
import mem
import sys

const idtype {
	pid 1
}

const state {
	exited 0x4
}

main() {
	length := 256
	command := mem.alloc(length)
	siginfo := mem.alloc(128)

	loop {
		io.out("λ ")
		n := io.in(command)

		if n <= 0 {
			return
		}

		command[n-1] = 0
		pid := sys.fork()

		if pid == 0 {
			sys.execve(command, 0, 0)
			return
		}

		sys.waitid(idtype.pid, pid, siginfo, state.exited)
	}
}