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Annotation of 43BSDReno/lib/libI77/rewind.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)rewind.c    5.2     7/30/85
        !             7:  */
        !             8: 
        !             9: /*
        !            10:  * rewind.c  -  f77 file rewind
        !            11:  */
        !            12: 
        !            13: #include "fio.h"
        !            14: 
        !            15: static char    rwnd[]  = "rewind";
        !            16: 
        !            17: f_rew(a) alist *a;
        !            18: {      int n;
        !            19:        unit *b;
        !            20: 
        !            21:        lfname = NULL;
        !            22:        elist = NO;
        !            23:        external = YES;                 /* for err */
        !            24:        lunit = a->aunit;
        !            25:        errflag = a->aerr;
        !            26:        if(not_legal(lunit)) err(errflag,F_ERUNIT,rwnd)
        !            27:        b = &units[lunit];
        !            28:        if(!b->ufd) return(OK);
        !            29:        lfname = b->ufnm;
        !            30:        if(!b->useek) err(errflag,F_ERNOBKSP,rwnd)
        !            31:        b->uend = NO;
        !            32:        if(b->uwrt)
        !            33:                if(n=t_runc(b,errflag,rwnd)) return(n);
        !            34:        rewind(b->ufd);
        !            35:        return(OK);
        !            36: }

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