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Annotation of 43BSDTahoe/lib/libc/stdio/rew.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1987 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #if defined(LIBC_SCCS) && !defined(lint)
        !            19: static char sccsid[] = "@(#)rew.c      5.4 (Berkeley) 6/27/88";
        !            20: #endif /* LIBC_SCCS and not lint */
        !            21: 
        !            22: #include <sys/types.h>
        !            23: #include <sys/file.h>
        !            24: #include <stdio.h>
        !            25: 
        !            26: rewind(iop)
        !            27:        register FILE *iop;
        !            28: {
        !            29:        off_t lseek();
        !            30: 
        !            31:        (void)fflush(iop);
        !            32:        (void)lseek(fileno(iop), 0L, L_SET);
        !            33:        iop->_cnt = 0;
        !            34:        iop->_ptr = iop->_base;
        !            35:        iop->_flag &= ~(_IOERR|_IOEOF);
        !            36:        if (iop->_flag & _IORW)
        !            37:                iop->_flag &= ~(_IOREAD|_IOWRT);
        !            38: }

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