- openlog("pppd", LOG_PID | LOG_NDELAY, LOG_PPP);
- setlogmask(LOG_UPTO(LOG_INFO));
- if (debug)
- setlogmask(LOG_UPTO(LOG_DEBUG));
-
- ipfd = open("/dev/ip", O_RDWR, 0);
- if (ipfd < 0) {
- syslog(LOG_ERR, "Couldn't open IP device: %m");
- die(1);
- }
-}
-
-/*
- * sys_cleanup - restore any system state we modified before exiting:
- * mark the interface down, delete default route and/or proxy arp entry.
- * This should call die() because it's called from die().
- */
-void
-sys_cleanup()
-{
- struct ifreq ifr;
-
- if (if_is_up)
- sifdown(0);
- if (default_route_gateway)
- cifdefaultroute(0, default_route_gateway);
- if (proxy_arp_addr)
- cifproxyarp(0, proxy_arp_addr);
-}
-
-/*
- * daemon - Detach us from controlling terminal session.
- */
-int
-daemon(nochdir, noclose)
- int nochdir, noclose;
-{
- int pid;
-
- if ((pid = fork()) < 0)
- return -1;
- if (pid != 0)
- exit(0); /* parent dies */
- setsid();
- if (!nochdir)
- chdir("/");
- if (!noclose) {
- fclose(stdin); /* don't need stdin, stdout, stderr */
- fclose(stdout);
- fclose(stderr);
- }
- return 0;
-}
-
-/*
- * note_debug_level - note a change in the debug level.
- */
-void
-note_debug_level()
-{
- if (debug) {
- syslog(LOG_INFO, "Debug turned ON, Level %d", debug);
- setlogmask(LOG_UPTO(LOG_DEBUG));
- } else {
- setlogmask(LOG_UPTO(LOG_WARNING));
- }
-}
-
-/*
- * ppp_available - check whether the system has any ppp interfaces
- */
-int
-ppp_available()
-{
- struct stat buf;
-
- return stat("/dev/ppp", &buf) >= 0;
-}
-
-/*
- * establish_ppp - Turn the serial port into a ppp interface.
- */
-void
-establish_ppp()
-{
- int i, ifd, x;