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/*********************************************************
* Copyright (C) 2011-2015 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* copyPasteCompat.c --
*
* Legacy copy/paste functions.
*/
#include "backdoor.h"
#include "backdoor_def.h"
#include "copyPasteCompat.h"
/*
*-----------------------------------------------------------------------------
*
* CopyPaste_GetHostSelectionLen --
*
* Retrieve the length of the clipboard (if any) to receive from the
* VMX.
*
* Results:
* Length >= 0 if a clipboard must be retrieved from the host.
* < 0 on error (VMWARE_DONT_EXCHANGE_SELECTIONS or
* VMWARE_SELECTION_NOT_READY currently)
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
int32
CopyPaste_GetHostSelectionLen(void)
{
Backdoor_proto bp;
bp.in.cx.halfs.low = BDOOR_CMD_GETSELLENGTH;
Backdoor(&bp);
return bp.out.ax.word;
}
/*
*-----------------------------------------------------------------------------
*
* CopyPasteGetNextPiece --
*
* Retrieve the next 4 bytes of the host clipboard.
*
* Results:
* The next 4 bytes of the host clipboard.
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
static uint32
CopyPasteGetNextPiece(void)
{
Backdoor_proto bp;
bp.in.cx.halfs.low = BDOOR_CMD_GETNEXTPIECE;
Backdoor(&bp);
return bp.out.ax.word;
}
/*
*-----------------------------------------------------------------------------
*
* CopyPaste_GetHostSelection --
*
* Retrieve the host clipboard. 'data' must be a buffer whose size is at
* least (('size' + 4 - 1) / 4) * 4 bytes.
*
* Results:
* The host clipboard in 'data'.
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
void
CopyPaste_GetHostSelection(unsigned int size, // IN
char *data) // OUT
{
uint32 *current;
uint32 const *end;
current = (uint32 *)data;
end = current + (size + sizeof *current - 1) / sizeof *current;
for (; current < end; current++) {
*current = CopyPasteGetNextPiece();
}
}
/*
*-----------------------------------------------------------------------------
*
* CopyPaste_SetSelLength --
*
* Tell the VMX about the length of the clipboard we are about to send
* to it.
*
* Results:
* None
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
void
CopyPaste_SetSelLength(uint32 length) // IN
{
Backdoor_proto bp;
bp.in.cx.halfs.low = BDOOR_CMD_SETSELLENGTH;
bp.in.size = length;
Backdoor(&bp);
}
/*
*-----------------------------------------------------------------------------
*
* CopyPaste_SetNextPiece --
*
* Send the next 4 bytes of the guest clipboard.
*
* Results:
* None
*
* Side effects:
* None
*
*-----------------------------------------------------------------------------
*/
void
CopyPaste_SetNextPiece(uint32 data) // IN
{
Backdoor_proto bp;
bp.in.cx.halfs.low = BDOOR_CMD_SETNEXTPIECE;
bp.in.size = data;
Backdoor(&bp);
}
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