1 /* 2 * Copyright (c) 1987 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #if defined(LIBC_SCCS) && !defined(lint) 9 static char sccsid[] = "@(#)rewind.c 5.5 (Berkeley) 06/01/90"; 10 #endif /* LIBC_SCCS and not lint */ 11 12 #include <sys/types.h> 13 #include <sys/file.h> 14 #include <stdio.h> 15 16 rewind(iop) 17 register FILE *iop; 18 { 19 off_t lseek(); 20 21 (void)fflush(iop); 22 (void)lseek(fileno(iop), 0L, L_SET); 23 iop->_cnt = 0; 24 iop->_ptr = iop->_base; 25 iop->_flag &= ~(_IOERR|_IOEOF); 26 if (iop->_flag & _IORW) 27 iop->_flag &= ~(_IOREAD|_IOWRT); 28 } 29