Function grant_load

sql/sql_acl.cc:8229–8365

*/

static bool grant_load(THD *thd,
                       const Tables_priv_table& tables_priv,
                       const Columns_priv_table& columns_priv,
                       const Procs_priv_table& procs_priv)
{
  bool return_val= 1;
  TABLE *t_table, *c_table, *p_table;
  MEM_ROOT *save_mem_root= thd->mem_root;
  DBUG_ENTER("grant_load");

  Sql_mode_instant_remove sms(thd, MODE_PAD_CHAR_TO_FULL_LENGTH);

  (void) my_hash_init(key_memory_acl_memex, &column_priv_hash,
                      &my_charset_utf8mb3_bin, 0, 0, 0, get_grant_table,
                      free_grant_table, 0);
  (void) my_hash_init(key_memory_acl_memex, &proc_priv_hash,
                      &my_charset_utf8mb3_bin, 0, 0, 0, get_grant_table, 0, 0);
  (void) my_hash_init(key_memory_acl_memex, &func_priv_hash,
                      &my_charset_utf8mb3_bin, 0, 0, 0, get_grant_table, 0, 0);
  (void) my_hash_init(key_memory_acl_memex, &package_spec_priv_hash,
                      &my_charset_utf8mb3_bin, 0, 0, 0, get_grant_table, 0, 0);
  (void) my_hash_init(key_memory_acl_memex, &package_body_priv_hash,
                      &my_charset_utf8mb3_bin, 0, 0, 0, get_grant_table, 0, 0);
  init_sql_alloc(key_memory_acl_mem, &grant_memroot, ACL_ALLOC_BLOCK_SIZE, 0, MYF(0));

  t_table= tables_priv.table();
  c_table= columns_priv.table();
  p_table= procs_priv.table(); // this can be NULL

  if (t_table->file->ha_index_init(0, 1))
    goto end_index_init;

  t_table->use_all_columns();
  c_table->use_all_columns();

  thd->mem_root= &grant_memroot;

  if (!t_table->file->ha_index_first(t_table->record[0]))
  {
    do
    {
      GRANT_TABLE *mem_check;
      /* TODO(cvicentiu) convert this to use tables_priv and columns_priv. */
      if (!(mem_check= new (&grant_memroot) GRANT_TABLE(t_table, c_table)))
      {
	/* This could only happen if we are out memory */
	goto end_unlock;
      }

      if (opt_skip_name_resolve)
      {
	if (hostname_requires_resolving(mem_check->host.hostname))
	{
          sql_print_warning("'tables_priv' entry '%s %s@%s' "
                            "ignored in --skip-name-resolve mode.",
                            mem_check->tname, mem_check->user,
                            safe_str(mem_check->host.hostname));
	  continue;