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Annotation of cci/usr/src/usr.lib/libsI77/rewind.c, revision 1.1.1.1

1.1       root        1: /*
                      2: char id_rewind[] = "@(#)rewind.c       1.2";
                      3:  *
                      4:  * rewind.c  -  f77 file rewind
                      5:  */
                      6: 
                      7: #include "fio.h"
                      8: 
                      9: f_rew(a) alist *a;
                     10: {      int n;
                     11:        unit *b;
                     12: 
                     13:        lfname = NULL;
                     14:        elist = NO;
                     15:        external = YES;                 /* for err */
                     16:        lunit = a->aunit;
                     17:        errflag = a->aerr;
                     18:        if(not_legal(lunit)) err(errflag,F_ERUNIT,"rewind")
                     19:        b = &units[lunit];
                     20:        if(!b->ufd && (n=fk_open(READ,SEQ,FMT,(ftnint)lunit)) )
                     21:                err(errflag,n,"rewind")
                     22:        lfname = b->ufnm;
                     23:        if(!b->useek) err(errflag,F_ERNOBKSP,"rewind")
                     24:        b->uend = NO;
                     25:        if(b->uwrt)
                     26:                if(n=t_runc(b,errflag)) return(n);
                     27:        rewind(b->ufd);
                     28:        return(OK);
                     29: }

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