_IOS_INPUT
streampos pos = _IO_seekoff (_strbuf, off, (int) dir, _IOS_INPUT);
streampos pos = _IO_seekoff (_strbuf, 0, _IO_seek_cur, _IOS_INPUT);
if (_IO_SEEKOFF (fp, (_IO_off64_t)0, _IO_seek_cur, _IOS_INPUT|_IOS_OUTPUT)
if (_IO_seekpos_unlocked (fp, posp->__pos, _IOS_INPUT|_IOS_OUTPUT)
(_IO_seekoff_unlocked (__fp, __offset, __whence, _IOS_INPUT|_IOS_OUTPUT) \
(void) _IO_seekoff_unlocked (FILE, 0, 0, _IOS_INPUT|_IOS_OUTPUT)
mode = (fp->_flags & _IO_CURRENTLY_PUTTING ? _IOS_OUTPUT : _IOS_INPUT);
if (mode & _IOS_INPUT)
mode = (fp->_flags & _IO_CURRENTLY_PUTTING ? _IOS_OUTPUT : _IOS_INPUT);
if (mode & _IOS_INPUT)