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/**
* Copyright 1993 Network Computing Devices, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name Network Computing Devices, Inc. not be
* used in advertising or publicity pertaining to distribution of this
* software without specific, written prior permission.
*
* THIS SOFTWARE IS PROVIDED 'AS-IS'. NETWORK COMPUTING DEVICES, INC.,
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT
* LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE, OR NONINFRINGEMENT. IN NO EVENT SHALL NETWORK
* COMPUTING DEVICES, INC., BE LIABLE FOR ANY DAMAGES WHATSOEVER, INCLUDING
* SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF USE, DATA,
* OR PROFITS, EVEN IF ADVISED OF THE POSSIBILITY THEREOF, AND REGARDLESS OF
* WHETHER IN AN ACTION IN CONTRACT, TORT OR NEGLIGENCE, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $NCDId: @(#)ListDevice.c,v 1.3 1994/04/07 20:41:22 greg Exp $
*/
#include "Alibint.h"
AuDeviceAttributes *
AuListDevices(
AuServer *aud,
AuMask mask,
AuDeviceAttributes *attr,
int *num_devices,
AuStatus *ret_status
)
{
register auReq *req;
auListDevicesReply rep;
auDeviceAttributes a;
AuDeviceAttributes *list = NULL,
*l,
tmp;
int stringLen, childLen;
AuMask savemask;
if (attr)
savemask = AuDeviceValueMask(attr);
else
attr = &tmp;
AuDeviceValueMask(attr) = mask;
if (ret_status)
*ret_status = AuSuccess;
_AuLockServer();
_AuGetEmptyReq(ListDevices, req, aud);
stringLen = (AuDeviceValueMask(attr) & AuCompCommonDescriptionMask) ?
AuDeviceDescription(attr)->len : 0;
childLen = (AuDeviceValueMask(attr) & AuCompDeviceChildrenMask) ?
AuDeviceNumChildren(attr) * sizeof(AuDeviceID) : 0;
req->length += (SIZEOF(auDeviceAttributes) + PAD4(stringLen) +
childLen) >> 2;
_xferDeviceAttributes(attr, a);
_AuData(aud, (char *) &a, SIZEOF(auDeviceAttributes));
if (stringLen)
_AuData(aud, AuDeviceDescription(attr)->data, stringLen);
if (childLen)
_AuData(aud, (char *) AuDeviceChildren(attr), childLen);
AuDeviceValueMask(attr) = savemask;
(void) _AuReply(aud, (auReply *) & rep, 0, auFalse, ret_status);
*num_devices = rep.num_devices;
if (rep.num_devices)
{
if (!(list = l = (AuDeviceAttributes *)
Aucalloc(1, rep.num_devices * sizeof(AuDeviceAttributes))))
{
_AuUnlockServer();
_AuSyncHandle(aud);
return NULL;
}
while (rep.num_devices--)
{
_AuReadPad(aud, (char *) &a, SIZEOF(auDeviceAttributes));
_xferDeviceAttributes(&a, *l);
if ((AuDeviceValueMask(l) & AuCompCommonDescriptionMask) &&
AuDeviceDescription(l)->len)
{
if (!(AuDeviceDescription(l)->data = (char *)
Aumalloc(AuDeviceDescription(l)->len + 1)))
{
AuFreeDeviceAttributes(aud, *num_devices, list);
_AuUnlockServer();
_AuSyncHandle(aud);
return NULL;
}
_AuReadPad(aud, AuDeviceDescription(l)->data,
AuDeviceDescription(l)->len);
AuDeviceDescription(l)->data[AuDeviceDescription(l)->len] = 0;
}
if ((AuDeviceValueMask(l) & AuCompDeviceChildrenMask) &&
AuDeviceNumChildren(l))
{
if (!(AuDeviceChildren(l) = (AuDeviceID *)
Aumalloc(AuDeviceNumChildren(l) * sizeof(AuDeviceID))))
{
AuFreeDeviceAttributes(aud, *num_devices, list);
_AuUnlockServer();
_AuSyncHandle(aud);
return NULL;
}
_AuReadPad(aud, (char *) AuDeviceChildren(l),
AuDeviceNumChildren(l) * sizeof(AuDeviceID));
}
l++;
}
}
_AuUnlockServer();
_AuSyncHandle(aud);
return list;
}
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