opendev.c revision 706f2543 
1/************************************************************
2
3Copyright 1989, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
26
27			All Rights Reserved
28
29Permission to use, copy, modify, and distribute this software and its
30documentation for any purpose and without fee is hereby granted,
31provided that the above copyright notice appear in all copies and that
32both that copyright notice and this permission notice appear in
33supporting documentation, and that the name of Hewlett-Packard not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43SOFTWARE.
44
45********************************************************/
46
47/***********************************************************************
48 *
49 * Request to open an extension input device.
50 *
51 */
52
53#ifdef HAVE_DIX_CONFIG_H
54#include <dix-config.h>
55#endif
56
57#include "inputstr.h"	/* DeviceIntPtr      */
58#include <X11/extensions/XI.h>
59#include <X11/extensions/XIproto.h>
60#include "XIstubs.h"
61#include "windowstr.h"	/* window structure  */
62#include "exglobals.h"
63#include "exevents.h"
64
65#include "opendev.h"
66
67extern CARD8 event_base[];
68
69/***********************************************************************
70 *
71 * This procedure swaps the request if the server and client have different
72 * byte orderings.
73 *
74 */
75
76int
77SProcXOpenDevice(ClientPtr client)
78{
79    char n;
80
81    REQUEST(xOpenDeviceReq);
82    swaps(&stuff->length, n);
83    return (ProcXOpenDevice(client));
84}
85
86/***********************************************************************
87 *
88 * This procedure causes the server to open an input device.
89 *
90 */
91
92int
93ProcXOpenDevice(ClientPtr client)
94{
95    xInputClassInfo evbase[numInputClasses];
96    int j = 0;
97    int status = Success;
98    xOpenDeviceReply rep;
99    DeviceIntPtr dev;
100
101    REQUEST(xOpenDeviceReq);
102    REQUEST_SIZE_MATCH(xOpenDeviceReq);
103
104    status = dixLookupDevice(&dev, stuff->deviceid, client, DixUseAccess);
105
106    if (status == BadDevice) {  /* not open */
107	for (dev = inputInfo.off_devices; dev; dev = dev->next)
108	    if (dev->id == stuff->deviceid)
109		break;
110	if (dev == NULL)
111	    return BadDevice;
112    } else if (status != Success)
113	return status;
114
115    if (IsMaster(dev))
116            return BadDevice;
117
118    if (status != Success)
119	return status;
120
121    memset(&rep, 0, sizeof(xOpenDeviceReply));
122    rep.repType = X_Reply;
123    rep.RepType = X_OpenDevice;
124    rep.sequenceNumber = client->sequence;
125    if (dev->key != NULL) {
126	evbase[j].class = KeyClass;
127	evbase[j++].event_type_base = event_base[KeyClass];
128    }
129    if (dev->button != NULL) {
130	evbase[j].class = ButtonClass;
131	evbase[j++].event_type_base = event_base[ButtonClass];
132    }
133    if (dev->valuator != NULL) {
134	evbase[j].class = ValuatorClass;
135	evbase[j++].event_type_base = event_base[ValuatorClass];
136    }
137    if (dev->kbdfeed != NULL || dev->ptrfeed != NULL || dev->leds != NULL ||
138	dev->intfeed != NULL || dev->bell != NULL || dev->stringfeed != NULL) {
139	evbase[j].class = FeedbackClass;
140	evbase[j++].event_type_base = event_base[FeedbackClass];
141    }
142    if (dev->focus != NULL) {
143	evbase[j].class = FocusClass;
144	evbase[j++].event_type_base = event_base[FocusClass];
145    }
146    if (dev->proximity != NULL) {
147	evbase[j].class = ProximityClass;
148	evbase[j++].event_type_base = event_base[ProximityClass];
149    }
150    evbase[j].class = OtherClass;
151    evbase[j++].event_type_base = event_base[OtherClass];
152    rep.length = bytes_to_int32(j * sizeof(xInputClassInfo));
153    rep.num_classes = j;
154    WriteReplyToClient(client, sizeof(xOpenDeviceReply), &rep);
155    WriteToClient(client, j * sizeof(xInputClassInfo), (char *)evbase);
156    return Success;
157}
158
159/***********************************************************************
160 *
161 * This procedure writes the reply for the XOpenDevice function,
162 * if the client and server have a different byte ordering.
163 *
164 */
165
166void
167SRepXOpenDevice(ClientPtr client, int size, xOpenDeviceReply * rep)
168{
169    char n;
170
171    swaps(&rep->sequenceNumber, n);
172    swapl(&rep->length, n);
173    WriteToClient(client, size, (char *)rep);
174}
175