getprop.c revision 35c4bbdf 
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 * Function to return the dont-propagate-list for an extension 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 "windowstr.h"          /* window structs    */
59#include <X11/extensions/XI.h>
60#include <X11/extensions/XIproto.h>
61#include "exglobals.h"
62#include "swaprep.h"
63
64#include "getprop.h"
65
66extern XExtEventInfo EventInfo[];
67extern int ExtEventIndex;
68
69/***********************************************************************
70 *
71 * Handle a request from a client with a different byte order.
72 *
73 */
74
75int
76SProcXGetDeviceDontPropagateList(ClientPtr client)
77{
78    REQUEST(xGetDeviceDontPropagateListReq);
79    swaps(&stuff->length);
80    REQUEST_SIZE_MATCH(xGetDeviceDontPropagateListReq);
81    swapl(&stuff->window);
82    return (ProcXGetDeviceDontPropagateList(client));
83}
84
85/***********************************************************************
86 *
87 * This procedure lists the input devices available to the server.
88 *
89 */
90
91int
92ProcXGetDeviceDontPropagateList(ClientPtr client)
93{
94    CARD16 count = 0;
95    int i, rc;
96    XEventClass *buf = NULL, *tbuf;
97    WindowPtr pWin;
98    xGetDeviceDontPropagateListReply rep;
99    OtherInputMasks *others;
100
101    REQUEST(xGetDeviceDontPropagateListReq);
102    REQUEST_SIZE_MATCH(xGetDeviceDontPropagateListReq);
103
104    rep = (xGetDeviceDontPropagateListReply) {
105        .repType = X_Reply,
106        .RepType = X_GetDeviceDontPropagateList,
107        .sequenceNumber = client->sequence,
108        .length = 0,
109        .count = 0
110    };
111
112    rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
113    if (rc != Success)
114        return rc;
115
116    if ((others = wOtherInputMasks(pWin)) != 0) {
117        for (i = 0; i < EMASKSIZE; i++)
118            ClassFromMask(NULL, others->dontPropagateMask[i], i, &count, COUNT);
119        if (count) {
120            rep.count = count;
121            buf = xallocarray(rep.count, sizeof(XEventClass));
122            rep.length = bytes_to_int32(rep.count * sizeof(XEventClass));
123
124            tbuf = buf;
125            for (i = 0; i < EMASKSIZE; i++)
126                tbuf = ClassFromMask(tbuf, others->dontPropagateMask[i], i,
127                                     NULL, CREATE);
128        }
129    }
130
131    WriteReplyToClient(client, sizeof(xGetDeviceDontPropagateListReply), &rep);
132
133    if (count) {
134        client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
135        WriteSwappedDataToClient(client, count * sizeof(XEventClass), buf);
136        free(buf);
137    }
138    return Success;
139}
140
141/***********************************************************************
142 *
143 * This procedure gets a list of event classes from a mask word.
144 * A single mask may translate to more than one event class.
145 *
146 */
147
148XEventClass
149    * ClassFromMask(XEventClass * buf, Mask mask, int maskndx, CARD16 *count,
150                    int mode)
151{
152    int i, j;
153    int id = maskndx;
154    Mask tmask = 0x80000000;
155
156    for (i = 0; i < 32; i++, tmask >>= 1)
157        if (tmask & mask) {
158            for (j = 0; j < ExtEventIndex; j++)
159                if (EventInfo[j].mask == tmask) {
160                    if (mode == COUNT)
161                        (*count)++;
162                    else
163                        *buf++ = (id << 8) | EventInfo[j].type;
164                }
165        }
166    return buf;
167}
168
169/***********************************************************************
170 *
171 * This procedure writes the reply for the XGetDeviceDontPropagateList function,
172 * if the client and server have a different byte ordering.
173 *
174 */
175
176void
177SRepXGetDeviceDontPropagateList(ClientPtr client, int size,
178                                xGetDeviceDontPropagateListReply * rep)
179{
180    swaps(&rep->sequenceNumber);
181    swapl(&rep->length);
182    swaps(&rep->count);
183    WriteToClient(client, size, rep);
184}
185