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Annotation of xinu/sys/open.c, revision 1.1

1.1     ! root        1: /* open.c - open */
        !             2: 
        !             3: #include <conf.h>
        !             4: #include <kernel.h>
        !             5: #include <io.h>
        !             6: 
        !             7: /*------------------------------------------------------------------------
        !             8:  *  open  -  open a connection to a device/file (parms 2 &3 are optional)
        !             9:  *------------------------------------------------------------------------
        !            10:  */
        !            11: SYSCALL        open(descrp, nam, mode)
        !            12: int    descrp;
        !            13: char   *nam;
        !            14: char   *mode;
        !            15: {
        !            16:        struct  devsw   *devptr;
        !            17: 
        !            18:        if ( isbaddev(descrp) )
        !            19:                return(SYSERR);
        !            20:        devptr = &devtab[descrp];
        !            21:        return( (*devptr->dvopen)(devptr, nam, mode) );
        !            22: }

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