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Annotation of 41BSD/lib/libI77/rewind.c, revision 1.1

1.1     ! root        1: #include "fio.h"
        !             2: f_rew(a) alist *a;
        !             3: {
        !             4:        unit *b;
        !             5:        if(a->aunit>=MXUNIT || a->aunit<0) err(a->aerr,101,"rewind");
        !             6:        b = &units[a->aunit];
        !             7:        if(b->ufd == NULL) return(0);
        !             8:        if(!b->useek) err(a->aerr,106,"rewind")
        !             9:        if(b->uwrt)
        !            10:        {       (void) nowreading(b);
        !            11:                (void) t_runc(b);
        !            12:        }
        !            13:        rewind(b->ufd);
        !            14:        b->uend=0;
        !            15:        return(0);
        !            16: }

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