+ ret_fd = generic_establish_ppp(tty_fd);
+
+#define SC_RCVB (SC_RCV_B7_0 | SC_RCV_B7_1 | SC_RCV_EVNP | SC_RCV_ODDP)
+#define SC_LOGB (SC_DEBUG | SC_LOG_INPKT | SC_LOG_OUTPKT | SC_LOG_RAWIN \
+ | SC_LOG_FLUSH)
+
+ if (ret_fd >= 0) {
+ set_flags(ppp_fd, ((get_flags(ppp_fd) & ~(SC_RCVB | SC_LOGB))
+ | ((kdebugflag * SC_DEBUG) & SC_LOGB)));
+ } else {
+ if (ioctl(tty_fd, TIOCSETD, &tty_disc) < 0 && !ok_error(errno))
+ warn("Couldn't reset tty to normal line discipline: %m");
+ }
+
+ return ret_fd;
+}
+
+/********************************************************************
+ *
+ * generic_establish_ppp - Turn the fd into a ppp interface.
+ */
+int generic_establish_ppp (int fd)
+{
+ int x;
+