Function mysql_grant

phx_percona/percona/sql/sql_acl.cc:5258–5461

}

bool mysql_grant(THD *thd, const char *db, List <LEX_USER> &list,
                 ulong rights, bool revoke_grant, bool is_proxy)
{
  List_iterator <LEX_USER> str_list (list);
  LEX_USER *Str, *tmp_Str, *proxied_user= NULL;
  char tmp_db[NAME_LEN+1];
  bool create_new_users=0;
  TABLE_LIST tables[2];
  bool save_binlog_row_based;
  bool transactional_tables;
  DBUG_ENTER("mysql_grant");
  if (!initialized)
  {
    my_error(ER_OPTION_PREVENTS_STATEMENT, MYF(0),
             "--skip-grant-tables");	/* purecov: tested */
    DBUG_RETURN(TRUE);				/* purecov: tested */
  }

  if (lower_case_table_names && db)
  {
    strnmov(tmp_db,db,NAME_LEN);
    tmp_db[NAME_LEN]= '\0';
    my_casedn_str(files_charset_info, tmp_db);
    db=tmp_db;
  }

  if (is_proxy)
  {
    DBUG_ASSERT(!db);
    proxied_user= str_list++;
  }

  /* open the mysql.user and mysql.db or mysql.proxies_priv tables */
  tables[0].init_one_table(C_STRING_WITH_LEN("mysql"),
                           C_STRING_WITH_LEN("user"), "user", TL_WRITE);
  if (is_proxy)

    tables[1].init_one_table(C_STRING_WITH_LEN("mysql"),
                             C_STRING_WITH_LEN("proxies_priv"),
                             "proxies_priv", 
                             TL_WRITE);
  else
    tables[1].init_one_table(C_STRING_WITH_LEN("mysql"),
                             C_STRING_WITH_LEN("db"), 
                             "db", 
                             TL_WRITE);
  tables[0].next_local= tables[0].next_global= tables+1;

  /*
    This statement will be replicated as a statement, even when using
    row-based replication.  The flag will be reset at the end of the
    statement.
  */
  if ((save_binlog_row_based= thd->is_current_stmt_binlog_format_row()))
    thd->clear_current_stmt_binlog_format_row();

#ifdef HAVE_REPLICATION
  /*