Пример #1
0
struct node *mknode(char *type, char *code, char *wire)
{
	struct node *node = ALLOC(node);

	if (type) {
		assert(!wire);

		node->type = getagent(type);
		node->code = code;
		free(type);
	} else if (code) {
		assert(!wire);

		node->code = code;
	} else {
		assert(wire);
		assert(!code);

		node->wire = getwire(wire);
		free(wire);
	}

	return node;
}
Пример #2
0
int
main(int argc, char *argv[])
{
  char *domdot, *verstr, *vertmp;
  int ppid = 0;
  int error;
  char *progname = NULL;		/* "amd" */
  char hostname[MAXHOSTNAMELEN + 1] = "localhost"; /* Hostname */

  /*
   * Make sure some built-in assumptions are true before we start
   */
  assert(sizeof(nfscookie) >= sizeof(u_int));
  assert(sizeof(int) >= 4);

  /*
   * Set processing status.
   */
  amd_state = Start;

  /*
   * Determine program name
   */
  if (argv[0]) {
    progname = strrchr(argv[0], '/');
    if (progname && progname[1])
      progname++;
    else
      progname = argv[0];
  }
  if (!progname)
    progname = "amd";
  am_set_progname(progname);

  /*
   * Initialize process id.  This is kept
   * cached since it is used for generating
   * and using file handles.
   */
  am_set_mypid();

  /*
   * Get local machine name
   */
  if (gethostname(hostname, sizeof(hostname)) < 0) {
    plog(XLOG_FATAL, "gethostname: %m");
    going_down(1);
  }
  hostname[sizeof(hostname) - 1] = '\0';

  /*
   * Check it makes sense
   */
  if (!*hostname) {
    plog(XLOG_FATAL, "host name is not set");
    going_down(1);
  }

  /*
   * Initialize global options structure.
   */
  init_global_options();

  /*
   * Partially initialize hostd[].  This
   * is completed in get_args().
   */
  if ((domdot = strchr(hostname, '.'))) {
    /*
     * Hostname already contains domainname.
     * Split out hostname and domainname
     * components
     */
    *domdot++ = '\0';
    hostdomain = domdot;
  }
  xstrlcpy(hostd, hostname, sizeof(hostd));
  am_set_hostname(hostname);

  /*
   * Setup signal handlers
   */
  /* SIGINT: trap interrupts for shutdowns */
  setup_sighandler(SIGINT, sigterm);
  /* SIGTERM: trap terminate so we can shutdown cleanly (some chance) */
  setup_sighandler(SIGTERM, sigterm);
  /* SIGHUP: hangups tell us to reload the cache */
  setup_sighandler(SIGHUP, sighup);
  /*
   * SIGCHLD: trap Death-of-a-child.  These allow us to pick up the exit
   * status of backgrounded mounts.  See "sched.c".
   */
  setup_sighandler(SIGCHLD, sigchld);
#ifdef HAVE_SIGACTION
  /* construct global "masked_sigs" used in nfs_start.c */
  sigemptyset(&masked_sigs);
  sigaddset(&masked_sigs, SIGINT);
  sigaddset(&masked_sigs, SIGTERM);
  sigaddset(&masked_sigs, SIGHUP);
  sigaddset(&masked_sigs, SIGCHLD);
#endif /* HAVE_SIGACTION */

  /*
   * Fix-up any umask problems.  Most systems default
   * to 002 which is not too convenient for our purposes
   */
  orig_umask = umask(0);

  /*
   * Figure out primary network name
   */
  getwire(&PrimNetName, &PrimNetNum);

  /*
   * Determine command-line arguments
   */
  get_args(argc, argv);

  /*
   * Log version information.
   */
  vertmp = get_version_string();
  verstr = strtok(vertmp, "\n");
  plog(XLOG_INFO, "AM-UTILS VERSION INFORMATION:");
  while (verstr) {
    plog(XLOG_INFO, "%s", verstr);
    verstr = strtok(NULL, "\n");
  }
  XFREE(vertmp);

  /*
   * Get our own IP address so that we can mount the automounter.  We pass
   * localhost_address which could be used as the default localhost
   * name/address in amu_get_myaddress().
   */
  amu_get_myaddress(&myipaddr, gopt.localhost_address);
  plog(XLOG_INFO, "My ip addr is %s", inet_ntoa(myipaddr));

  /* avoid hanging on other NFS servers if started elsewhere */
  if (chdir("/") < 0)
    plog(XLOG_INFO, "cannot chdir to /: %m");

  /*
   * Now check we are root.
   */
  if (geteuid() != 0) {
    plog(XLOG_FATAL, "Must be root to mount filesystems (euid = %ld)", (long) geteuid());
    going_down(1);
  }

#ifdef HAVE_MAP_NIS
  /*
   * If the domain was specified then bind it here
   * to circumvent any default bindings that may
   * be done in the C library.
   */
  if (gopt.nis_domain && yp_bind(gopt.nis_domain)) {
    plog(XLOG_FATAL, "Can't bind to NIS domain \"%s\"", gopt.nis_domain);
    going_down(1);
  }
#endif /* HAVE_MAP_NIS */

  if (!amuDebug(D_DAEMON))
    ppid = daemon_mode();

  /*
   * Lock process text and data segment in memory.
   */
  if (gopt.flags & CFM_PROCESS_LOCK) {
    do_memory_locking();
  }

  do_mapc_reload = clocktime(NULL) + gopt.map_reload_interval;

  /*
   * Register automounter with system.
   */
  error = mount_automounter(ppid);
  if (error && ppid)
    kill(ppid, SIGALRM);

#ifdef HAVE_FS_AUTOFS
  /*
   * XXX this should be part of going_down(), but I can't move it there
   * because it would be calling non-library code from the library... ugh
   */
  if (amd_use_autofs)
    destroy_autofs_service();
#endif /* HAVE_FS_AUTOFS */

  going_down(error);

  abort();
  return 1; /* should never get here */
}
Пример #3
0
int
main(int argc, char **argv)
{
  char *networkName1, *networkNumber1;
  struct in_addr myipaddr;	/* (An) IP address of this host */
  char *testhost, *proto, *tmp_buf;
  int nv, ret;
  struct sockaddr_in *ip;
  struct hostent *hp = NULL;

  am_set_progname(argv[0]);

  if (gethostname(hostname, sizeof(hostname)) < 0) {
    perror(argv[0]);
    exit(1);
  }
  hostname[sizeof(hostname) - 1] = '\0';

  /* get list of networks */
  getwire(&networkName1, &networkNumber1);
  tmp_buf = print_wires();
  if (tmp_buf) {
    fprintf(stderr, "%s", tmp_buf);
    XFREE(tmp_buf);
  }

  /* also print my IP address */
  amu_get_myaddress(&myipaddr, NULL);
  fprintf(stderr, "My IP address is 0x%x.\n", (unsigned int) htonl(myipaddr.s_addr));

  /*
   * NFS VERSION/PROTOCOL TESTS:
   * If argv[1] is specified  perform nfs tests to that host, else use
   * localhost.
   */
  if (argc > 1)
    testhost = argv[1];
  else
    testhost = "localhost";
  hp = gethostbyname(testhost);
  if (!hp) {
    fprintf(stderr, "NFS vers/proto failed: no such hostname \"%s\"\n", testhost);
    exit(1);
  }
  ip = (struct sockaddr_in *) xmalloc(sizeof(struct sockaddr_in));
  memset((voidp) ip, 0, sizeof(*ip));
  /* as per POSIX, sin_len need not be set (used internally by kernel) */
  ip->sin_family = AF_INET;
  memmove((voidp) &ip->sin_addr, (voidp) hp->h_addr, sizeof(ip->sin_addr));
  ip->sin_port = htons(NFS_PORT);

  fprintf(stderr, "NFS Version and protocol tests to host \"%s\"...\n", testhost);
  proto = "udp";
  for (nv=2; nv<=3; ++nv) {
    fprintf(stderr, "\ttesting vers=%d, proto=\"%s\" -> ", nv, proto);
    ret = get_nfs_version(testhost, ip, nv, proto, 0);
    if (ret == 0)
      fprintf(stderr, "failed!\n");
    else
      fprintf(stderr, "found version %d.\n", ret);
  }

  proto = "tcp";
  for (nv=2; nv<=3; ++nv) {
    fprintf(stderr, "\ttesting vers=%d, proto=\"%s\" -> ", nv, proto);
    ret = get_nfs_version(testhost, ip, nv, proto, 0);
    if (ret == 0)
      fprintf(stderr, "failed!\n");
    else
      fprintf(stderr, "found version %d.\n", ret);
  }

  exit(0);
  return 0; /* should never reach here */
}