-/*
- Detach from current terminal, write pidfile, kill parent
-*/
-int detach(void)
-{
- int fd;
- pid_t pid;
-
- if(do_detach)
- {
- ppid = getpid();
-
- if((pid = fork()) < 0)
- {
- perror("fork");
- return -1;
- }
- if(pid) /* parent process */
- {
- signal(SIGTERM, parent_exit);
- sleep(600); /* wait 10 minutes */
- exit(1);
- }
- }
-
- if(write_pidfile())
- return -1;
-
- if(do_detach)
- {
- if((fd = open("/dev/tty", O_RDWR)) >= 0)
- {
- if(ioctl(fd, TIOCNOTTY, NULL))
- {
- perror("ioctl");
- return -1;
- }
- close(fd);
- }
-
- if(setsid() < 0)
- return -1;
-
- kill(ppid, SIGTERM);
- }
-
- chdir("/"); /* avoid keeping a mointpoint busy */
-
- openlog(identname, LOG_CONS | LOG_PID, LOG_DAEMON);
-
- if(debug_lvl > 1)
- syslog(LOG_NOTICE, "tincd %s (%s %s) starting, debug level %d.",
- VERSION, __DATE__, __TIME__, debug_lvl);
- else
- syslog(LOG_NOTICE, "tincd %s starting, debug level %d.", VERSION, debug_lvl);
-
- xalloc_fail_func = memory_full;
-
- return 0;
+ case 'd': /* increase debug level */
+ if(!optarg && optind < argc && *argv[optind] != '-') {
+ optarg = argv[optind++];
+ }
+
+ if(optarg) {
+ debug_level = atoi(optarg);
+ } else {
+ debug_level++;
+ }
+
+ break;
+
+ case 'k': /* kill old tincds */
+#ifndef HAVE_MINGW
+ if(!optarg && optind < argc && *argv[optind] != '-') {
+ optarg = argv[optind++];
+ }
+
+ if(optarg) {
+ if(!strcasecmp(optarg, "HUP")) {
+ kill_tincd = SIGHUP;
+ } else if(!strcasecmp(optarg, "TERM")) {
+ kill_tincd = SIGTERM;
+ } else if(!strcasecmp(optarg, "KILL")) {
+ kill_tincd = SIGKILL;
+ } else if(!strcasecmp(optarg, "USR1")) {
+ kill_tincd = SIGUSR1;
+ } else if(!strcasecmp(optarg, "USR2")) {
+ kill_tincd = SIGUSR2;
+ } else if(!strcasecmp(optarg, "WINCH")) {
+ kill_tincd = SIGWINCH;
+ } else if(!strcasecmp(optarg, "INT")) {
+ kill_tincd = SIGINT;
+ } else if(!strcasecmp(optarg, "ALRM")) {
+ kill_tincd = SIGALRM;
+ } else if(!strcasecmp(optarg, "ABRT")) {
+ kill_tincd = SIGABRT;
+ } else {
+ kill_tincd = atoi(optarg);
+
+ if(!kill_tincd) {
+ fprintf(stderr, "Invalid argument `%s'; SIGNAL must be a number or one of HUP, TERM, KILL, USR1, USR2, WINCH, INT or ALRM.\n",
+ optarg);
+ usage(true);
+ return false;
+ }
+ }
+ } else {
+ kill_tincd = SIGTERM;
+ }
+
+#else
+ kill_tincd = 1;
+#endif
+ break;
+
+ case 'n': /* net name given */
+
+ /* netname "." is special: a "top-level name" */
+ if(netname) {
+ fprintf(stderr, "Only one netname can be given.\n");
+ usage(true);
+ return false;
+ }
+
+ if(optarg && strcmp(optarg, ".")) {
+ netname = xstrdup(optarg);
+ }
+
+ break;
+
+ case 'o': /* option */
+ cfg = parse_config_line(optarg, NULL, ++lineno);
+
+ if(!cfg) {
+ return false;
+ }
+
+ list_insert_tail(cmdline_conf, cfg);
+ break;
+
+ case 'K': /* generate public/private keypair */
+ if(!optarg && optind < argc && *argv[optind] != '-') {
+ optarg = argv[optind++];
+ }
+
+ if(optarg) {
+ generate_keys = atoi(optarg);
+
+ if(generate_keys < 512) {
+ fprintf(stderr, "Invalid argument `%s'; BITS must be a number equal to or greater than 512.\n",
+ optarg);
+ usage(true);
+ return false;
+ }
+
+ generate_keys &= ~7; /* Round it to bytes */
+ } else {
+ generate_keys = 2048;
+ }
+
+ break;
+
+ case 'R': /* chroot to NETNAME dir */
+ do_chroot = true;
+ break;
+
+ case 'U': /* setuid to USER */
+ switchuser = optarg;
+ break;
+
+ case 1: /* show help */
+ show_help = true;
+ break;
+
+ case 2: /* show version */
+ show_version = true;
+ break;
+
+ case 3: /* bypass security */
+ bypass_security = true;
+ break;
+
+ case 4: /* write log entries to a file */
+ use_logfile = true;
+
+ if(!optarg && optind < argc && *argv[optind] != '-') {
+ optarg = argv[optind++];
+ }
+
+ if(optarg) {
+ if(logfilename) {
+ fprintf(stderr, "Only one logfile can be given.\n");
+ usage(true);
+ return false;
+ }
+
+ logfilename = xstrdup(optarg);
+ }
+
+ break;
+
+ case 5: /* write PID to a file */
+ if(pidfilename) {
+ fprintf(stderr, "Only one pidfile can be given.\n");
+ usage(true);
+ return false;
+ }
+
+ pidfilename = xstrdup(optarg);
+ break;
+
+ case '?':
+ usage(true);
+ return false;
+
+ default:
+ break;
+ }
+ }
+
+ if(optind < argc) {
+ fprintf(stderr, "%s: unrecognized argument '%s'\n", argv[0], argv[optind]);
+ usage(true);
+ return false;
+ }
+
+ return true;