| """ |
| Launch a process (given through argv) similar to how a shell would do it. |
| """ |
| |
| import signal |
| import subprocess |
| import sys |
| import os |
| |
| |
| def preexec_fn(): |
| # Block SIGTTOU generated by the tcsetpgrp call |
| orig_mask = signal.pthread_sigmask(signal.SIG_BLOCK, [signal.SIGTTOU]) |
| |
| # Put us in a new process group. |
| os.setpgid(0, 0) |
| |
| # And put it in the foreground. |
| fd = os.open("/dev/tty", os.O_RDONLY) |
| os.tcsetpgrp(fd, os.getpgid(0)) |
| os.close(fd) |
| |
| signal.pthread_sigmask(signal.SIG_SETMASK, orig_mask) |
| |
| |
| if __name__ == "__main__": |
| child = subprocess.Popen(sys.argv[1:], preexec_fn=preexec_fn) |
| print("PID=%d" % child.pid) |
| |
| _, status = os.waitpid(child.pid, os.WUNTRACED) |
| print("STATUS=%d" % status) |
| |
| returncode = child.wait() |
| print("RETURNCODE=%d" % returncode) |
