is_console       2437 win32/win32.c  static int is_console(SOCKET);
is_console       2443 win32/win32.c      return is_socket(TO_SOCKET(fd)) || !is_console(TO_SOCKET(fd));
is_console       3013 win32/win32.c      extract_fd(&cons_rd, else_rd.fdset, is_console); // ditto
is_console       6834 win32/win32.c      isconsole = is_console(_osfhnd(fd)) && (osver.dwMajorVersion < 6 || (osver.dwMajorVersion == 6 && osver.dwMinorVersion < 2));