C++ (Cpp) _nss_grp_create_tablename Examples

Example #1

File: nisplus-grp.c Project: riscv/riscv-glibc

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;
}

Example #2

File: nisplus-grp.c Project: riscv/riscv-glibc

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;
}

Example #3

File: nisplus-grp.c Project: riscv/riscv-glibc

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;
}

Example #4

File: nisplus-initgroups.c Project: Xilinx/eglibc

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;
}