70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2010 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gtm_stdio.h"
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#include "io.h"
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#include "iottdef.h"
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#include "iomtdef.h"
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#include "iosp.h"
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#include "copy.h"
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int iomt_wrtinit (io_desc *dv)
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{
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unsigned char *cp;
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uint4 *quadbyteptr;
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int x, y;
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d_mt_struct *mt_ptr;
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static readonly unsigned char litzeros[4] = {'0', '0', '0', '0'};
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mt_ptr = (d_mt_struct *) dv->dev_sp;
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#ifdef UNIX
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if (mt_ptr->mode != MT_M_WRITE)
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{
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uint4 status;
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status = iomt_reopen (dv, MT_M_WRITE, FALSE);
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if (status != SS_NORMAL)
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{
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return (status);
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}
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}
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#endif
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mt_ptr->bufftop = mt_ptr->buffer + mt_ptr->block_sz;
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mt_ptr->buffptr = mt_ptr->buffer;
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if (mt_ptr->fixed || mt_ptr->stream)
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{
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mt_ptr->rec.addr = (char *) mt_ptr->buffer;
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mt_ptr->rec.len = 0;
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} else
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{
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quadbyteptr = (uint4 *) mt_ptr->buffer;
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GET_LONGP(quadbyteptr, &litzeros[0]);
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quadbyteptr++;
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mt_ptr->rec.addr = (char *) quadbyteptr;
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mt_ptr->rec.len = 0;
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}
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if (mt_ptr->labeled && mt_ptr->last_op == mt_rewind)
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{
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if (mt_ptr->labeled == MTLAB_DOS11)
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iomt_wtdoslab (dv);
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else if (mt_ptr->labeled == MTLAB_ANSI)
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{
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iomt_wtansilab (dv, MTL_VOL1 | MTL_HDR1 | MTL_HDR2);
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iomt_tm (dv);
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} else
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GTMASSERT;
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}
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dv->dollar.za = 0;
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mt_ptr->last_op = mt_write;
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return SS_NORMAL;
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}
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