Esempio n. 1
0
enum nss_status
_nss_nisplus_setnetgrent (const char *group, struct __netgrent *netgrp)
{
  char buf[strlen (group) + 25];

  if (group == NULL || group[0] == '\0')
    return NSS_STATUS_UNAVAIL;

  enum nss_status status = NSS_STATUS_SUCCESS;

  snprintf (buf, sizeof (buf), "[name=%s],netgroup.org_dir", group);

  netgrp->data = (char *) nis_list (buf, EXPAND_NAME, NULL, NULL);

  if (netgrp->data == NULL)
    {
      __set_errno (ENOMEM);
      status = NSS_STATUS_TRYAGAIN;
    }
  else if (niserr2nss (((nis_result *) netgrp->data)->status)
	   != NSS_STATUS_SUCCESS)
    {
      status = niserr2nss (((nis_result *) netgrp->data)->status);

      internal_endnetgrent (netgrp);
    }
  else
    {
      netgrp->data_size = ((nis_result *) netgrp->data)->objects.objects_len;
      netgrp->position = 0;
      netgrp->first = 1;
    }

  return status;
}
Esempio n. 2
0
enum nss_status
_nss_nisplus_getgrnam_r (const char *name, struct group *gr,
			 char *buffer, size_t buflen, int *errnop)
{
  int parse_res;

  if (grp_tablename_val == NULL)
    {
      enum nss_status status = _nss_grp_create_tablename (errnop);

      if (status != NSS_STATUS_SUCCESS)
	return status;
    }

  if (name == NULL)
    {
      *errnop = EINVAL;
      return NSS_STATUS_NOTFOUND;
    }

  nis_result *result;
  char buf[strlen (name) + 9 + grp_tablename_len];
  int olderr = errno;

  snprintf (buf, sizeof (buf), "[name=%s],%s", name, grp_tablename_val);

  result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH, NULL, NULL);

  if (result == NULL)
    {
      *errnop = ENOMEM;
      return NSS_STATUS_TRYAGAIN;
    }

  if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
    {
      enum nss_status status = niserr2nss (result->status);

      nis_freeresult (result);
      return status;
    }

  parse_res = _nss_nisplus_parse_grent (result, gr, buffer, buflen, errnop);
  nis_freeresult (result);
  if (__glibc_unlikely (parse_res < 1))
    {
      if (parse_res == -1)
	{
	  *errnop = ERANGE;
	  return NSS_STATUS_TRYAGAIN;
	}
      else
	{
	  __set_errno (olderr);
	  return NSS_STATUS_NOTFOUND;
	}
    }

  return NSS_STATUS_SUCCESS;
}
Esempio n. 3
0
static enum nss_status
internal_nisplus_getspent_r (struct spwd *sp, char *buffer, size_t buflen,
			     int *errnop)
{
  int parse_res;

  /* Get the next entry until we found a correct one. */
  do
    {
      nis_result *saved_res;

      if (result == NULL)
	{
	  saved_res = NULL;

          if (tablename_val == NULL)
	    {
	      enum nss_status status = _nss_create_tablename (errnop);

	      if (status != NSS_STATUS_SUCCESS)
		return status;
	    }

	  result = nis_first_entry (tablename_val);
	  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
	    return niserr2nss (result->status);
	}
      else
	{
	  nis_result *res;

	  saved_res = result;
	  res = nis_next_entry (tablename_val, &result->cookie);
	  result = res;
	  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
	    {
	      nis_freeresult (saved_res);
	      return niserr2nss (result->status);
	    }
	}

      parse_res = _nss_nisplus_parse_spent (result, sp, buffer,
					    buflen, errnop);
      if (parse_res == -1)
	{
	  nis_freeresult (result);
	  result = saved_res;
	  *errnop = ERANGE;
	  return NSS_STATUS_TRYAGAIN;
	}
      else
	{
	  if (saved_res)
	    nis_freeresult (saved_res);
	}
    } while (!parse_res);

  return NSS_STATUS_SUCCESS;
}
Esempio n. 4
0
enum nss_status
_nss_nisplus_getpwuid_r (const uid_t uid, struct passwd *pw,
			 char *buffer, size_t buflen, int *errnop)
{
  if (pwd_tablename_val == NULL)
    {
      enum nss_status status = _nss_pwd_create_tablename (errnop);

      if (status != NSS_STATUS_SUCCESS)
	return status;
    }

  int parse_res;
  nis_result *result;
  char buf[8 + 3 * sizeof (unsigned long int) + pwd_tablename_len];
  int olderr = errno;

  snprintf (buf, sizeof (buf), "[uid=%lu],%s",
	    (unsigned long int) uid, pwd_tablename_val);

  result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM, NULL, NULL);

  if (result == NULL)
    {
      *errnop = ENOMEM;
      return NSS_STATUS_TRYAGAIN;
    }

  if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
    {
      enum nss_status status = niserr2nss (result->status);

      errno = olderr;

      nis_freeresult (result);
      return status;
    }

  parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen, errnop);

  nis_freeresult (result);

  if (parse_res < 1)
    {
      if (parse_res == -1)
	{
	  *errnop = ERANGE;
	  return NSS_STATUS_TRYAGAIN;
	}
      else
	{
	  errno = olderr;
	  return NSS_STATUS_NOTFOUND;
	}
    }

  return NSS_STATUS_SUCCESS;
}
Esempio n. 5
0
enum nss_status
_nss_nisplus_gethostton_r (const char *name, struct etherent *eth,
			   char *buffer, size_t buflen, int *errnop)
{
  if (tablename_val == NULL)
    {
      enum nss_status status = _nss_create_tablename (errnop);

      if (status != NSS_STATUS_SUCCESS)
	return status;
    }

  if (name == NULL)
    {
      *errnop = EINVAL;
      return NSS_STATUS_UNAVAIL;
    }

  char buf[strlen (name) + 9 + tablename_len];
  int olderr = errno;

  snprintf (buf, sizeof (buf), "[name=%s],%s", name, tablename_val);

  nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM,
				 NULL, NULL);

  if (result == NULL)
    {
      *errnop = ENOMEM;
      return NSS_STATUS_TRYAGAIN;
    }

  if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
    {
      enum nss_status status = niserr2nss (result->status);
      nis_freeresult (result);
      return status;
    }

  int parse_res = _nss_nisplus_parse_etherent (result, eth, buffer,
					       buflen, errnop);

  /* We do not need the lookup result anymore.  */
  nis_freeresult (result);

  if (__glibc_unlikely (parse_res < 1))
    {
      __set_errno (olderr);

      if (parse_res == -1)
	return NSS_STATUS_TRYAGAIN;

      return NSS_STATUS_NOTFOUND;
    }

  return NSS_STATUS_SUCCESS;
}
Esempio n. 6
0
enum nss_status
_nss_nisplus_getgrgid_r (const gid_t gid, struct group *gr,
			 char *buffer, size_t buflen, int *errnop)
{
  if (grp_tablename_val == NULL)
    {
      enum nss_status status = _nss_grp_create_tablename (errnop);

      if (status != NSS_STATUS_SUCCESS)
	return status;
    }

  int parse_res;
  nis_result *result;
  char buf[8 + 3 * sizeof (unsigned long int) + grp_tablename_len];
  int olderr = errno;

  snprintf (buf, sizeof (buf), "[gid=%lu],%s",
	    (unsigned long int) gid, grp_tablename_val);

  result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);

  if (result == NULL)
    {
      *errnop = ENOMEM;
      return NSS_STATUS_TRYAGAIN;
    }

  if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
    {
      enum nss_status status = niserr2nss (result->status);

      __set_errno (olderr);

      nis_freeresult (result);
      return status;
    }

  parse_res = _nss_nisplus_parse_grent (result, gr, buffer, buflen, errnop);

  nis_freeresult (result);
  if (__glibc_unlikely (parse_res < 1))
    {
      __set_errno (olderr);

      if (parse_res == -1)
	{
	  *errnop = ERANGE;
	  return NSS_STATUS_TRYAGAIN;
	}
      else
	return NSS_STATUS_NOTFOUND;
    }

  return NSS_STATUS_SUCCESS;
}
Esempio n. 7
0
enum nss_status
_nss_nisplus_getpwnam_r (const char *name, struct passwd *pw,
			 char *buffer, size_t buflen, int *errnop)
{
  int parse_res;

  if (tablename_val == NULL)
    {
      enum nss_status status = _nss_create_tablename (errnop);

      if (status != NSS_STATUS_SUCCESS)
	return status;
    }

  if (name == NULL)
    {
      *errnop = EINVAL;
      return NSS_STATUS_UNAVAIL;
    }
  else
    {
      nis_result *result;
      char buf[strlen (name) + 24 + tablename_len];

      sprintf (buf, "[name=%s],%s", name, tablename_val);

      result = nis_list(buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);

      if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
	{
	  enum nss_status status =  niserr2nss (result->status);

	  nis_freeresult (result);
	  return status;
	}

      parse_res = _nss_nisplus_parse_pwent (result, pw, buffer, buflen,
					    errnop);

      nis_freeresult (result);

      if (parse_res < 1)
	{
	  if (parse_res == -1)
	    {
	      *errnop = ERANGE;
	      return NSS_STATUS_TRYAGAIN;
	    }
	  else
	    return NSS_STATUS_NOTFOUND;
	}
      return NSS_STATUS_SUCCESS;
    }
}
Esempio n. 8
0
static enum nss_status
internal_setgrent (int *errnop)
{
  enum nss_status status = NSS_STATUS_SUCCESS;

  if (grp_tablename_val == NULL)
    status = _nss_grp_create_tablename (errnop);

  if (status == NSS_STATUS_SUCCESS)
    {
      ibreq = __create_ib_request (grp_tablename_val, 0);
      if (ibreq == NULL)
	{
	  *errnop = errno;
	  return NSS_STATUS_TRYAGAIN;
	}

      nis_error retcode = __prepare_niscall (grp_tablename_val, &dir, &bptr, 0);
      if (retcode != NIS_SUCCESS)
	{
	  nis_free_request (ibreq);
	  ibreq = NULL;
	  status = niserr2nss (retcode);
	}
    }

  return status;
}
Esempio n. 9
0
static enum nss_status
internal_nisplus_getgrent_r (struct group *gr, char *buffer, size_t buflen,
			     int *errnop)
{
  int parse_res = -1;
  enum nss_status retval = NSS_STATUS_SUCCESS;

  /* Get the next entry until we found a correct one. */
  do
    {
      nis_error status;
      nis_result result;
      memset (&result, '\0', sizeof (result));

      if (cursor.n_bytes == NULL)
	{
	  if (ibreq == NULL)
	    {
	      retval = internal_setgrent (errnop);
	      if (retval != NSS_STATUS_SUCCESS)
		return retval;
	    }

	  status = __do_niscall3 (&bptr, NIS_IBFIRST,
				  (xdrproc_t) _xdr_ib_request,
				  (caddr_t) ibreq,
				  (xdrproc_t) _xdr_nis_result,
				  (caddr_t) &result,
				  0, NULL);
	}
      else
	{
	  ibreq->ibr_cookie.n_bytes = cursor.n_bytes;
	  ibreq->ibr_cookie.n_len = cursor.n_len;

	  status = __do_niscall3 (&bptr, NIS_IBNEXT,
				  (xdrproc_t) _xdr_ib_request,
				  (caddr_t) ibreq,
				  (xdrproc_t) _xdr_nis_result,
				  (caddr_t) &result,
				  0, NULL);

	  ibreq->ibr_cookie.n_bytes = NULL;
	  ibreq->ibr_cookie.n_len = 0;
	}

      if (status != NIS_SUCCESS)
	return niserr2nss (status);

      if (NIS_RES_STATUS (&result) == NIS_NOTFOUND)
	{
	  /* No more entries on this server.  This means we have to go
	     to the next server on the path.  */
	  status = __follow_path (&tablepath, &tableptr, ibreq, &bptr);
	  if (status != NIS_SUCCESS)
	    return niserr2nss (status);

	  directory_obj *newdir = NULL;
	  dir_binding newbptr;
	  status = __prepare_niscall (ibreq->ibr_name, &newdir, &newbptr, 0);
	  if (status != NIS_SUCCESS)
	    return niserr2nss (status);

	  nis_free_directory (dir);
	  dir = newdir;
	  __nisbind_destroy (&bptr);
	  bptr = newbptr;

	  xdr_free ((xdrproc_t) xdr_netobj, (char *) &result.cookie);
	  result.cookie.n_bytes = NULL;
	  result.cookie.n_len = 0;
	  parse_res = 0;
	  goto next;
	}
      else if (NIS_RES_STATUS (&result) != NIS_SUCCESS)
	return niserr2nss (NIS_RES_STATUS (&result));

      parse_res = _nss_nisplus_parse_grent (&result, gr,
					    buffer, buflen, errnop);
      if (__glibc_unlikely (parse_res == -1))
	{
	  *errnop = ERANGE;
	  retval = NSS_STATUS_TRYAGAIN;
	  goto freeres;
	}

    next:
      /* Free the old cursor.  */
      xdr_free ((xdrproc_t) xdr_netobj, (char *) &cursor);
      /* Remember the new one.  */
      cursor.n_bytes = result.cookie.n_bytes;
      cursor.n_len = result.cookie.n_len;
      /* Free the result structure.  NB: we do not remove the cookie.  */
      result.cookie.n_bytes = NULL;
      result.cookie.n_len = 0;
    freeres:
      xdr_free ((xdrproc_t) _xdr_nis_result, (char *) &result);
      memset (&result, '\0', sizeof (result));
    }
  while (!parse_res);

  return retval;
}
Esempio n. 10
0
enum nss_status
_nss_nisplus_getntohost_r (const struct ether_addr *addr, struct etherent *eth,
			   char *buffer, size_t buflen, int *errnop)
{
  if (tablename_val == NULL)
    {
      __libc_lock_lock (lock);

      enum nss_status status = _nss_create_tablename (errnop);

      __libc_lock_unlock (lock);

      if (status != NSS_STATUS_SUCCESS)
	return status;
    }

  if (addr == NULL)
    {
      *errnop = EINVAL;
      return NSS_STATUS_UNAVAIL;
    }

  char buf[26 + tablename_len];

  snprintf (buf, sizeof (buf),
	    "[addr=%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8 ":%" PRIx8
	    ":%" PRIx8 "],%s",
	    addr->ether_addr_octet[0], addr->ether_addr_octet[1],
	    addr->ether_addr_octet[2], addr->ether_addr_octet[3],
	    addr->ether_addr_octet[4], addr->ether_addr_octet[5],
	    tablename_val);

  nis_result *result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS | USE_DGRAM,
				 NULL, NULL);

  if (result == NULL)
    {
      *errnop = ENOMEM;
      return NSS_STATUS_TRYAGAIN;
    }

  if (__glibc_unlikely (niserr2nss (result->status) != NSS_STATUS_SUCCESS))
    {
      enum nss_status status = niserr2nss (result->status);
      nis_freeresult (result);
      return status;
    }

  int parse_res = _nss_nisplus_parse_etherent (result, eth, buffer,
					       buflen, errnop);

  /* We do not need the lookup result anymore.  */
  nis_freeresult (result);

  if (__glibc_unlikely (parse_res < 1))
    {
      if (parse_res == -1)
	return NSS_STATUS_TRYAGAIN;

      return NSS_STATUS_NOTFOUND;
    }

  return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_getspnam_r (const char *name, struct spwd *sp,
		     char *buffer, size_t buflen, int *errnop)
{
  int parse_res;

  if (pwd_tablename_val == NULL)
    {
      enum nss_status status = _nss_pwd_create_tablename (errnop);

      if (status != NSS_STATUS_SUCCESS)
	return status;
    }

  if (name == NULL)
    {
      *errnop = EINVAL;
      return NSS_STATUS_NOTFOUND;
    }

  nis_result *result;
  char buf[strlen (name) + 9 + pwd_tablename_len];
  int olderr = errno;

  snprintf (buf, sizeof (buf), "[name=%s],%s", name, pwd_tablename_val);

  result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);

  if (result == NULL)
    {
      *errnop = ENOMEM;
      return NSS_STATUS_TRYAGAIN;
    }

  if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
    {
      enum nss_status status = niserr2nss (result->status);

      __set_errno (olderr);

      nis_freeresult (result);
      return status;
    }

  parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen, errnop);
  nis_freeresult (result);

  if (__builtin_expect (parse_res < 1, 0))
    {
      if (parse_res == -1)
	{
	  *errnop = ERANGE;
	  return NSS_STATUS_TRYAGAIN;
	}
      else
	{
	  __set_errno (olderr);
	  return NSS_STATUS_NOTFOUND;
	}
    }

  return NSS_STATUS_SUCCESS;
}
Esempio n. 12
0
enum nss_status
_nss_nisplus_initgroups_dyn (const char *user, gid_t group, long int *start,
			     long int *size, gid_t **groupsp, long int limit,
			     int *errnop)
{
  if (grp_tablename_val == NULL)
    {
      enum nss_status status = _nss_grp_create_tablename (errnop);

      if (status != NSS_STATUS_SUCCESS)
	return status;
    }

  nis_result *result;
  char buf[strlen (user) + 12 + grp_tablename_len];

  snprintf (buf, sizeof (buf), "[members=%s],%s", user, grp_tablename_val);

  result = nis_list (buf, FOLLOW_LINKS | FOLLOW_PATH | ALL_RESULTS, NULL, NULL);

  if (result == NULL)
    {
      *errnop = ENOMEM;
      return NSS_STATUS_TRYAGAIN;
    }

  if (__builtin_expect (niserr2nss (result->status) != NSS_STATUS_SUCCESS, 0))
    {
      enum nss_status status = niserr2nss (result->status);

      nis_freeresult (result);
      return status;
    }

  if (NIS_RES_NUMOBJ (result) == 0)
    {
    errout:
      nis_freeresult (result);
      return NSS_STATUS_NOTFOUND;
    }

  gid_t *groups = *groupsp;
  nis_object *obj = NIS_RES_OBJECT (result);
  for (unsigned int cnt = 0; cnt < NIS_RES_NUMOBJ (result); ++cnt, ++obj)
    {
      if (__type_of (obj) != NIS_ENTRY_OBJ
	  || strcmp (obj->EN_data.en_type, "group_tbl") != 0
	  || obj->EN_data.en_cols.en_cols_len < 4)
	continue;

      char *numstr = NISOBJVAL (2, obj);
      size_t len = NISOBJLEN (2, obj);
      if (len == 0 || numstr[0] == '\0')
	continue;

      gid_t gid;
      char *endp;
      if (__builtin_expect (numstr[len - 1] != '\0', 0))
	{
	  char numstrbuf[len + 1];
	  memcpy (numstrbuf, numstr, len);
	  numstrbuf[len] = '\0';
	  gid = strtoul (numstrbuf, &endp, 10);
	  if (*endp)
	    continue;
	}
      else
	{
	  gid = strtoul (numstr, &endp, 10);
	  if (*endp)
	    continue;
	}

      if (gid == group)
	continue;

      /* Insert this group.  */
      if (*start == *size)
	{
	  /* Need a bigger buffer.  */
	  long int newsize;

	  if (limit > 0 && *size == limit)
	    /* We reached the maximum.  */
	    break;

	  if (limit <= 0)
	    newsize = 2 * *size;
	  else
	    newsize = MIN (limit, 2 * *size);

	  gid_t *newgroups = realloc (groups, newsize * sizeof (*groups));
	  if (newgroups == NULL)
	    goto errout;
	  *groupsp = groups = newgroups;
	  *size = newsize;
	}

      groups[*start] = gid;
      *start += 1;
    }

  nis_freeresult (result);
  return NSS_STATUS_SUCCESS;
}