示例#1
0
int
attribute_compat_text_section
__nss_next (service_user **ni, const char *fct_name, void **fctp, int status,
	    int all_values)
{
  return __nss_next2 (ni, fct_name, NULL, fctp, status, all_values);
}
示例#2
0
static int
internal_function
__internal_setnetgrent_reuse (const char *group, struct __netgrent *datap,
			      int *errnop)
{
  union
  {
    enum nss_status (*f) (const char *, struct __netgrent *);
    void *ptr;
  } fct;
  enum nss_status status = NSS_STATUS_UNAVAIL;
  struct name_list *new_elem;

  /* Free data from previous service.  */
  endnetgrent_hook (datap);

  /* Cycle through all the services and run their setnetgrent functions.  */
  int no_more = setup (&fct.ptr, &datap->nip);
  while (! no_more)
    {
      assert (datap->data == NULL);

      /* Ignore status, we force check in `__nss_next2'.  */
      status = DL_CALL_FCT (*fct.f, (group, datap));

      service_user *old_nip = datap->nip;
      no_more = __nss_next2 (&datap->nip, "setnetgrent", NULL, &fct.ptr,
			     status, 0);

      if (status == NSS_STATUS_SUCCESS && ! no_more)
	{
	  enum nss_status (*endfct) (struct __netgrent *);

	  endfct = __nss_lookup_function (old_nip, "endnetgrent");
	  if (endfct != NULL)
	    (void) DL_CALL_FCT (*endfct, (datap));
	}
    }

  /* Add the current group to the list of known groups.  */
  size_t group_len = strlen (group) + 1;
  new_elem = (struct name_list *) malloc (sizeof (struct name_list)
					  + group_len);
  if (new_elem == NULL)
    {
      *errnop = errno;
      status = NSS_STATUS_TRYAGAIN;
    }
  else
    {
      new_elem->next = datap->known_groups;
      memcpy (new_elem->name, group, group_len);
      datap->known_groups = new_elem;
    }

  return status == NSS_STATUS_SUCCESS;
}
示例#3
0
int
ether_ntohost (char *hostname, const struct ether_addr *addr)
{
  static service_user *startp;
  static lookup_function start_fct;
  service_user *nip;
  union
  {
    lookup_function f;
    void *ptr;
  } fct;
  int no_more;
  enum nss_status status = NSS_STATUS_UNAVAIL;
  struct etherent etherent;

  if (startp == NULL)
    {
      no_more = __nss_ethers_lookup (&nip, "getntohost_r", &fct.ptr);
      if (no_more)
	startp = (service_user *) -1;
      else
	{
	  startp = nip;
	  start_fct = fct.f;
	}
    }
  else
    {
      fct.f = start_fct;
      no_more = (nip = startp) == (service_user *) -1;
    }

  while (no_more == 0)
    {
      char buffer[1024];

      status = (*fct.f) (addr, &etherent, buffer, sizeof buffer, &errno);

      no_more = __nss_next2 (&nip, "getntohost_r", NULL, &fct.ptr, status, 0);
    }

  if (status == NSS_STATUS_SUCCESS)
    /* XXX This is a potential cause of trouble because the size of
       the HOSTNAME buffer is not known but the interface does not
       provide this information.  */
    strcpy (hostname, etherent.e_name);

  return status == NSS_STATUS_SUCCESS ? 0 : -1;
}
示例#4
0
int
ether_hostton (const char *hostname, struct ether_addr *addr)
{
  static service_user *startp;
  static lookup_function start_fct;
  service_user *nip;
  union
  {
    lookup_function f;
    void *ptr;
  } fct;
  int no_more;
  enum nss_status status = NSS_STATUS_UNAVAIL;
  struct etherent etherent;

  if (startp == NULL)
    {
      no_more = __nss_ethers_lookup (&nip, "gethostton_r", &fct.ptr);
      if (no_more)
	startp = (service_user *) -1;
      else
	{
	  startp = nip;
	  start_fct = fct.f;
	}
    }
  else
    {
      fct.f = start_fct;
      no_more = (nip = startp) == (service_user *) -1;
    }

  while (no_more == 0)
    {
      char buffer[1024];

      status = (*fct.f) (hostname, &etherent, buffer, sizeof buffer, &errno);

      no_more = __nss_next2 (&nip, "gethostton_r", NULL, &fct.ptr, status, 0);
    }

  if (status == NSS_STATUS_SUCCESS)
    memcpy (addr, etherent.e_addr.ether_addr_octet,
	    sizeof (struct ether_addr));

  return status == NSS_STATUS_SUCCESS ? 0 : -1;
}
示例#5
0
文件: netname.c 项目: dreal/tai
int
netname2user (const char netname[MAXNETNAMELEN + 1], uid_t * uidp, gid_t * gidp,
	      int *gidlenp, gid_t * gidlist)
{
  static service_user *startp;
  static netname2user_function start_fct;
  service_user *nip;
  union
  {
    netname2user_function f;
    void *ptr;
  } fct;
  enum nss_status status = NSS_STATUS_UNAVAIL;
  int no_more;

  if (startp == NULL)
    {
      no_more = __nss_publickey_lookup (&nip, "netname2user", &fct.ptr);
      if (no_more)
	startp = (service_user *) - 1;
      else
	{
	  startp = nip;
	  start_fct = fct.f;
	}
    }
  else
    {
      fct.f = start_fct;
      no_more = (nip = startp) == (service_user *) - 1;
    }

  while (!no_more)
    {
      status = (*fct.f) (netname, uidp, gidp, gidlenp, gidlist);

      no_more = __nss_next2 (&nip, "netname2user", NULL, &fct.ptr, status, 0);
    }

  return status == NSS_STATUS_SUCCESS;
}
示例#6
0
int
getsecretkey (const char *name, char *key, const char *passwd)
{
  static service_user *startp;
  static secret_function start_fct;
  service_user *nip;
  union
  {
    secret_function f;
    void *ptr;
  } fct;
  enum nss_status status = NSS_STATUS_UNAVAIL;
  int no_more;

  if (startp == NULL)
    {
      no_more = __nss_publickey_lookup (&nip, "getsecretkey", &fct.ptr);
      if (no_more)
	startp = (service_user *) -1;
      else
	{
	  startp = nip;
	  start_fct = fct.f;
	}
    }
  else
    {
      fct.f = start_fct;
      no_more = (nip = startp) == (service_user *) -1;
    }

  while (! no_more)
    {
      status = (*fct.f) (name, key, passwd, &errno);

      no_more = __nss_next2 (&nip, "getsecretkey", NULL, &fct.ptr, status, 0);
    }

  return status == NSS_STATUS_SUCCESS;
}
示例#7
0
/* Test whether given (host,user,domain) triple is in NETGROUP.  */
int
innetgr (const char *netgroup, const char *host, const char *user,
	 const char *domain)
{
#ifdef USE_NSCD
  if (__nss_not_use_nscd_netgroup > 0
      && ++__nss_not_use_nscd_netgroup > NSS_NSCD_RETRY)
    __nss_not_use_nscd_netgroup = 0;

  if (!__nss_not_use_nscd_netgroup
      && !__nss_database_custom[NSS_DBSIDX_netgroup])
    {
      int result = __nscd_innetgr (netgroup, host, user, domain);
      if (result >= 0)
	return result;
    }
#endif

  union
  {
    enum nss_status (*f) (const char *, struct __netgrent *);
    void *ptr;
  } setfct;
  void (*endfct) (struct __netgrent *);
  int (*getfct) (struct __netgrent *, char *, size_t, int *);
  struct __netgrent entry;
  int result = 0;
  const char *current_group = netgroup;

  memset (&entry, '\0', sizeof (entry));

  /* Walk through the services until we found an answer or we shall
     not work further.  We can do some optimization here.  Since all
     services must provide the `setnetgrent' function we can do all
     the work during one walk through the service list.  */
  while (1)
    {
      int no_more = setup (&setfct.ptr, &entry.nip);
      while (! no_more)
	{
	  assert (entry.data == NULL);

	  /* Open netgroup.  */
	  enum nss_status status = DL_CALL_FCT (*setfct.f,
						(current_group, &entry));

	  if (status == NSS_STATUS_SUCCESS
	      && (getfct = __nss_lookup_function (entry.nip, "getnetgrent_r"))
		 != NULL)
	    {
	      char buffer[1024];

	      while (DL_CALL_FCT (*getfct,
				  (&entry, buffer, sizeof buffer, &errno))
		     == NSS_STATUS_SUCCESS)
		{
		  if (entry.type == group_val)
		    {
		      /* Make sure we haven't seen the name before.  */
		      struct name_list *namep;

		      for (namep = entry.known_groups; namep != NULL;
			   namep = namep->next)
			if (strcmp (entry.val.group, namep->name) == 0)
			  break;
		      if (namep == NULL)
			for (namep = entry.needed_groups; namep != NULL;
			     namep = namep->next)
			  if (strcmp (entry.val.group, namep->name) == 0)
			    break;
		      if (namep == NULL
			  && strcmp (netgroup, entry.val.group) != 0)
			{
			  size_t group_len = strlen (entry.val.group) + 1;
			  namep =
			    (struct name_list *) malloc (sizeof (*namep)
							 + group_len);
			  if (namep == NULL)
			    {
			      /* Out of memory, simply return.  */
			      result = -1;
			      break;
			    }

			  namep->next = entry.needed_groups;
			  memcpy (namep->name, entry.val.group, group_len);
			  entry.needed_groups = namep;
			}
		    }
		  else
		    {
		      if ((entry.val.triple.host == NULL || host == NULL
			   || __strcasecmp (entry.val.triple.host, host) == 0)
			  && (entry.val.triple.user == NULL || user == NULL
			      || strcmp (entry.val.triple.user, user) == 0)
			  && (entry.val.triple.domain == NULL || domain == NULL
			      || __strcasecmp (entry.val.triple.domain,
					       domain) == 0))
			{
			  result = 1;
			  break;
			}
		    }
		}

	      /* If we found one service which does know the given
		 netgroup we don't try further.  */
	      status = NSS_STATUS_RETURN;
	    }

	  /* Free all resources of the service.  */
	  endfct = __nss_lookup_function (entry.nip, "endnetgrent");
	  if (endfct != NULL)
	    DL_CALL_FCT (*endfct, (&entry));

	  if (result != 0)
	    break;

	  /* Look for the next service.  */
	  no_more = __nss_next2 (&entry.nip, "setnetgrent", NULL,
				 &setfct.ptr, status, 0);
	}

      if (result == 0 && entry.needed_groups != NULL)
	{
	  struct name_list *tmp = entry.needed_groups;
	  entry.needed_groups = tmp->next;
	  tmp->next = entry.known_groups;
	  entry.known_groups = tmp;
	  current_group = tmp->name;
	  continue;
	}

      /* No way out.  */
      break;
    }

  /* Free the memory.  */
  free_memory (&entry);

  return result == 1;
}