icmp.py 文件源码

def createInternetSocket(self):
        s = socket.socket(
            socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)

        s.setblocking(0)

        fd = s.fileno()

        # Set close-on-exec

        flags = fcntl.fcntl(fd, fcntl.F_GETFD)
        flags = flags | fcntl.FD_CLOEXEC
        fcntl.fcntl(fd, fcntl.F_SETFD, flags)

        return s