1 /************************************************************
2
3 Copyright 1989, 1998 The Open Group
4
5 Permission to use, copy, modify, distribute, and sell this software and its
6 documentation for any purpose is hereby granted without fee, provided that
7 the above copyright notice appear in all copies and that both that
8 copyright notice and this permission notice appear in supporting
9 documentation.
10
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21 Except as contained in this notice, the name of The Open Group shall not be
22 used in advertising or otherwise to promote the sale, use or other dealings
23 in this Software without prior written authorization from The Open Group.
24
25 Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
26
27 All Rights Reserved
28
29 Permission to use, copy, modify, and distribute this software and its
30 documentation for any purpose and without fee is hereby granted,
31 provided that the above copyright notice appear in all copies and that
32 both that copyright notice and this permission notice appear in
33 supporting documentation, and that the name of Hewlett-Packard not be
34 used in advertising or publicity pertaining to distribution of the
35 software without specific, written prior permission.
36
37 HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39 HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43 SOFTWARE.
44
45 ********************************************************/
46
47 /***********************************************************************
48 *
49 * Request to send an extension event.
50 *
51 */
52
53 #ifdef HAVE_DIX_CONFIG_H
54 #include <dix-config.h>
55 #endif
56
57 #include "inputstr.h" /* DeviceIntPtr */
58 #include "windowstr.h" /* Window */
59 #include "extnsionst.h" /* EventSwapPtr */
60 #include <X11/extensions/XI.h>
61 #include <X11/extensions/XIproto.h>
62 #include "exevents.h"
63 #include "exglobals.h"
64
65 #include "grabdev.h"
66 #include "sendexev.h"
67
68 extern int lastEvent; /* Defined in extension.c */
69
70 /***********************************************************************
71 *
72 * Handle requests from clients with a different byte order than us.
73 *
74 */
75
76 int _X_COLD
SProcXSendExtensionEvent(ClientPtr client)77 SProcXSendExtensionEvent(ClientPtr client)
78 {
79 CARD32 *p;
80 int i;
81 xEvent eventT = { .u.u.type = 0 };
82 xEvent *eventP;
83 EventSwapPtr proc;
84
85 REQUEST(xSendExtensionEventReq);
86 swaps(&stuff->length);
87 REQUEST_AT_LEAST_SIZE(xSendExtensionEventReq);
88 swapl(&stuff->destination);
89 swaps(&stuff->count);
90
91 if (stuff->length !=
92 bytes_to_int32(sizeof(xSendExtensionEventReq)) + stuff->count +
93 bytes_to_int32(stuff->num_events * sizeof(xEvent)))
94 return BadLength;
95
96 eventP = (xEvent *) &stuff[1];
97 for (i = 0; i < stuff->num_events; i++, eventP++) {
98 if (eventP->u.u.type == GenericEvent) {
99 client->errorValue = eventP->u.u.type;
100 return BadValue;
101 }
102
103 proc = EventSwapVector[eventP->u.u.type & 0177];
104 /* no swapping proc; invalid event type? */
105 if (proc == NotImplemented) {
106 client->errorValue = eventP->u.u.type;
107 return BadValue;
108 }
109 (*proc) (eventP, &eventT);
110 *eventP = eventT;
111 }
112
113 p = (CARD32 *) (((xEvent *) &stuff[1]) + stuff->num_events);
114 SwapLongs(p, stuff->count);
115 return (ProcXSendExtensionEvent(client));
116 }
117
118 /***********************************************************************
119 *
120 * Send an event to some client, as if it had come from an extension input
121 * device.
122 *
123 */
124
125 int
ProcXSendExtensionEvent(ClientPtr client)126 ProcXSendExtensionEvent(ClientPtr client)
127 {
128 int ret, i;
129 DeviceIntPtr dev;
130 xEvent *first;
131 XEventClass *list;
132 struct tmask tmp[EMASKSIZE];
133
134 REQUEST(xSendExtensionEventReq);
135 REQUEST_AT_LEAST_SIZE(xSendExtensionEventReq);
136
137 if (stuff->length !=
138 bytes_to_int32(sizeof(xSendExtensionEventReq)) + stuff->count +
139 (stuff->num_events * bytes_to_int32(sizeof(xEvent))))
140 return BadLength;
141
142 ret = dixLookupDevice(&dev, stuff->deviceid, client, DixWriteAccess);
143 if (ret != Success)
144 return ret;
145
146 if (stuff->num_events == 0)
147 return ret;
148
149 /* The client's event type must be one defined by an extension. */
150
151 first = ((xEvent *) &stuff[1]);
152 for (i = 0; i < stuff->num_events; i++) {
153 if (!((EXTENSION_EVENT_BASE <= first[i].u.u.type) &&
154 (first[i].u.u.type < lastEvent))) {
155 client->errorValue = first[i].u.u.type;
156 return BadValue;
157 }
158 }
159
160 list = (XEventClass *) (first + stuff->num_events);
161 if ((ret = CreateMaskFromList(client, list, stuff->count, tmp, dev,
162 X_SendExtensionEvent)) != Success)
163 return ret;
164
165 ret = (SendEvent(client, dev, stuff->destination,
166 stuff->propagate, (xEvent *) &stuff[1],
167 tmp[stuff->deviceid].mask, stuff->num_events));
168
169 return ret;
170 }
171