Function sql_parse_prepare

sql/parse_file.cc:451–537

*/

File_parser * 
sql_parse_prepare(const LEX_CSTRING *file_name, MEM_ROOT *mem_root,
		  bool bad_format_errors)
{
  MY_STAT stat_info;
  size_t len;
  char *buff, *end, *sign;
  File_parser *parser;
  File file;
  DBUG_ENTER("sql_parse_prepare");

  if (!mysql_file_stat(key_file_fileparser,
                       file_name->str, &stat_info, MYF(MY_WME)))
  {
    DBUG_RETURN(0);
  }

  if (stat_info.st_size > INT_MAX-1)
  {
    my_error(ER_FPARSER_TOO_BIG_FILE, MYF(0), file_name->str);
    DBUG_RETURN(0);
  }

  if (!(parser= new(mem_root) File_parser))
  {
    DBUG_RETURN(0);
  }

  if (!(buff= (char*) alloc_root(mem_root, (size_t)(stat_info.st_size+1))))
  {
    DBUG_RETURN(0);
  }

  if ((file= mysql_file_open(key_file_fileparser, file_name->str,
                             O_RDONLY | O_SHARE, MYF(MY_WME))) < 0)
  {
    DBUG_RETURN(0);
  }
  
  if ((len= mysql_file_read(file, (uchar *)buff, (size_t)stat_info.st_size,
                            MYF(MY_WME))) == MY_FILE_ERROR)
  {
    mysql_file_close(file, MYF(MY_WME));
    DBUG_RETURN(0);
  }

  if (mysql_file_close(file, MYF(MY_WME)))
  {
    DBUG_RETURN(0);
  }

  end= buff + len;
  *end= '\0'; // barrier for more simple parsing

  // 7 = 5 (TYPE=) + 1 (letter at least of type name) + 1 ('\n')
  if (len < 7 ||
      buff[0] != 'T' ||
      buff[1] != 'Y' ||