1 /* @(#)rewind.c 4.2 (Berkeley) 03/09/81 */ 2 #include <stdio.h> 3 4 rewind(iop) 5 register struct _iobuf *iop; 6 { 7 fflush(iop); 8 lseek(fileno(iop), 0L, 0); 9 iop->_cnt = 0; 10 iop->_ptr = iop->_base; 11 iop->_flag &= ~(_IOERR|_IOEOF); 12 if (iop->_flag & _IORW) 13 iop->_flag &= ~(_IOREAD|_IOWRT); 14 } 15