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Annotation of coherent/d/PS2_KERNEL/io.386/msgstub.c, revision 1.1

1.1     ! root        1: /* $Header: /kernel/kersrc/io.386/RCS/msgstub.c,v 1.2 92/08/04 12:54:08 bin Exp Locker: bin $
        !             2:  *
        !             3:  *     The  information  contained herein  is a trade secret  of INETCO
        !             4:  *     Systems, and is confidential information.   It is provided under
        !             5:  *     a license agreement,  and may be copied or disclosed  only under
        !             6:  *     the terms of that agreement.   Any reproduction or disclosure of
        !             7:  *     this  material  without  the express  written  authorization  of
        !             8:  *     INETCO Systems or persuant to the license agreement is unlawful.
        !             9:  *
        !            10:  *     Copyright (c) 1985
        !            11:  *     An unpublished work by INETCO Sys/
        !            12: 
        !            13: #include <sys/coherent.h>
        !            14: #include <errno.h>
        !            15: #include <sys/inode.h>
        !            16: #include <sys/fdisk.h>
        !            17: #include <sys/buf.h>
        !            18: #include <sys/con.h>
        !            19: 
        !            20: fdisk(dev, fp)
        !            21: dev_t dev;
        !            22: register struct fdisk_s *fp;
        !            23: {
        !            24:        register struct hdisk_s *hp;
        !            25:        BUF *bp;
        !            26:        int s, i;
        !            27:        int ret = 0;
        !            28: 
        !            29:        s = sphi();
        !            30:        dopen(dev, IPR, DFBLK);
        !            31: 
        !            32:        if (u.u_error == 0) {           /* special device now open */
        !            33: 
        !            34:                if (bp = bread(dev, (daddr_t) 0, 1)) {  /* data read */
        !            35: 
        !            36:                        /* buffer cache is in kernel data space */
        !            37: #ifdef _I386
        !            38:                        hp = bp->b_vaddr;
        !            39: #else
        !            40:                        hp = FP_OFF(bp->b_faddr);
        !            41: #endif
        !            42: 
        !            43:                        if(hp->hd_sig==HDSIG) {
        !            44:                                for (i=0; i < NPARTN; ++i)
        !            45:                                        *fp++ = hp->hd_partn[i];
        !            46:                                ret   = 1;
        !            47:                        }
        !            48:                        brelease(bp);
        !            49:                }
        !            50:                dclose(dev);
        !            51:        }
        !            52:        spl(s);
        !            53:        return ret;
        !            54: }
        !            55: io.386/fl.c
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