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a09e091a JB |
1 | /* |
2 | ||
3 | Copyright 1993, 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 | |
12 | in all copies or substantial portions of the Software. | |
13 | ||
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
15 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
17 | IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | OTHER DEALINGS IN THE SOFTWARE. | |
21 | ||
22 | Except as contained in this notice, the name of The Open Group shall | |
23 | not be used in advertising or otherwise to promote the sale, use or | |
24 | other dealings in this Software without prior written authorization | |
25 | from The Open Group. | |
26 | ||
27 | */ | |
28 | ||
29 | #ifdef HAVE_DIX_CONFIG_H | |
30 | #include <dix-config.h> | |
31 | #endif | |
32 | ||
33 | #include <X11/X.h> | |
34 | #include <X11/Xproto.h> | |
35 | #include "misc.h" | |
36 | #include "os.h" | |
37 | #include "dixstruct.h" | |
38 | #include "extnsionst.h" | |
39 | #include "swaprep.h" | |
40 | #include <X11/extensions/xcmiscproto.h> | |
41 | #include "extinit.h" | |
42 | ||
43 | #include <stdint.h> | |
44 | ||
45 | static int | |
46 | ProcXCMiscGetVersion(ClientPtr client) | |
47 | { | |
48 | xXCMiscGetVersionReply rep = { | |
49 | .type = X_Reply, | |
50 | .sequenceNumber = client->sequence, | |
51 | .length = 0, | |
52 | .majorVersion = XCMiscMajorVersion, | |
53 | .minorVersion = XCMiscMinorVersion | |
54 | }; | |
55 | ||
56 | REQUEST_SIZE_MATCH(xXCMiscGetVersionReq); | |
57 | ||
58 | if (client->swapped) { | |
59 | swaps(&rep.sequenceNumber); | |
60 | swaps(&rep.majorVersion); | |
61 | swaps(&rep.minorVersion); | |
62 | } | |
63 | WriteToClient(client, sizeof(xXCMiscGetVersionReply), &rep); | |
64 | return Success; | |
65 | } | |
66 | ||
67 | static int | |
68 | ProcXCMiscGetXIDRange(ClientPtr client) | |
69 | { | |
70 | xXCMiscGetXIDRangeReply rep; | |
71 | XID min_id, max_id; | |
72 | ||
73 | REQUEST_SIZE_MATCH(xXCMiscGetXIDRangeReq); | |
74 | GetXIDRange(client->index, FALSE, &min_id, &max_id); | |
75 | rep = (xXCMiscGetXIDRangeReply) { | |
76 | .type = X_Reply, | |
77 | .sequenceNumber = client->sequence, | |
78 | .length = 0, | |
79 | .start_id = min_id, | |
80 | .count = max_id - min_id + 1 | |
81 | }; | |
82 | if (client->swapped) { | |
83 | swaps(&rep.sequenceNumber); | |
84 | swapl(&rep.start_id); | |
85 | swapl(&rep.count); | |
86 | } | |
87 | WriteToClient(client, sizeof(xXCMiscGetXIDRangeReply), &rep); | |
88 | return Success; | |
89 | } | |
90 | ||
91 | static int | |
92 | ProcXCMiscGetXIDList(ClientPtr client) | |
93 | { | |
94 | REQUEST(xXCMiscGetXIDListReq); | |
95 | xXCMiscGetXIDListReply rep; | |
96 | XID *pids; | |
97 | unsigned int count; | |
98 | ||
99 | REQUEST_SIZE_MATCH(xXCMiscGetXIDListReq); | |
100 | ||
101 | if (stuff->count > UINT32_MAX / sizeof(XID)) | |
102 | return BadAlloc; | |
103 | ||
104 | pids = (XID *) malloc(stuff->count * sizeof(XID)); | |
105 | if (!pids) { | |
106 | return BadAlloc; | |
107 | } | |
108 | count = GetXIDList(client, stuff->count, pids); | |
109 | rep = (xXCMiscGetXIDListReply) { | |
110 | .type = X_Reply, | |
111 | .sequenceNumber = client->sequence, | |
112 | .length = count, | |
113 | .count = count | |
114 | }; | |
115 | if (client->swapped) { | |
116 | swaps(&rep.sequenceNumber); | |
117 | swapl(&rep.length); | |
118 | swapl(&rep.count); | |
119 | } | |
120 | WriteToClient(client, sizeof(xXCMiscGetXIDListReply), &rep); | |
121 | if (count) { | |
122 | client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; | |
123 | WriteSwappedDataToClient(client, count * sizeof(XID), pids); | |
124 | } | |
125 | free(pids); | |
126 | return Success; | |
127 | } | |
128 | ||
129 | static int | |
130 | ProcXCMiscDispatch(ClientPtr client) | |
131 | { | |
132 | REQUEST(xReq); | |
133 | switch (stuff->data) { | |
134 | case X_XCMiscGetVersion: | |
135 | return ProcXCMiscGetVersion(client); | |
136 | case X_XCMiscGetXIDRange: | |
137 | return ProcXCMiscGetXIDRange(client); | |
138 | case X_XCMiscGetXIDList: | |
139 | return ProcXCMiscGetXIDList(client); | |
140 | default: | |
141 | return BadRequest; | |
142 | } | |
143 | } | |
144 | ||
145 | static int | |
146 | SProcXCMiscGetVersion(ClientPtr client) | |
147 | { | |
148 | REQUEST(xXCMiscGetVersionReq); | |
149 | ||
150 | swaps(&stuff->length); | |
151 | REQUEST_SIZE_MATCH(xXCMiscGetVersionReq); | |
152 | swaps(&stuff->majorVersion); | |
153 | swaps(&stuff->minorVersion); | |
154 | return ProcXCMiscGetVersion(client); | |
155 | } | |
156 | ||
157 | static int | |
158 | SProcXCMiscGetXIDRange(ClientPtr client) | |
159 | { | |
160 | REQUEST(xReq); | |
161 | ||
162 | swaps(&stuff->length); | |
163 | return ProcXCMiscGetXIDRange(client); | |
164 | } | |
165 | ||
166 | static int | |
167 | SProcXCMiscGetXIDList(ClientPtr client) | |
168 | { | |
169 | REQUEST(xXCMiscGetXIDListReq); | |
170 | ||
171 | swaps(&stuff->length); | |
172 | swapl(&stuff->count); | |
173 | return ProcXCMiscGetXIDList(client); | |
174 | } | |
175 | ||
176 | static int | |
177 | SProcXCMiscDispatch(ClientPtr client) | |
178 | { | |
179 | REQUEST(xReq); | |
180 | switch (stuff->data) { | |
181 | case X_XCMiscGetVersion: | |
182 | return SProcXCMiscGetVersion(client); | |
183 | case X_XCMiscGetXIDRange: | |
184 | return SProcXCMiscGetXIDRange(client); | |
185 | case X_XCMiscGetXIDList: | |
186 | return SProcXCMiscGetXIDList(client); | |
187 | default: | |
188 | return BadRequest; | |
189 | } | |
190 | } | |
191 | ||
192 | void | |
193 | XCMiscExtensionInit(void) | |
194 | { | |
195 | AddExtension(XCMiscExtensionName, 0, 0, | |
196 | ProcXCMiscDispatch, SProcXCMiscDispatch, | |
197 | NULL, StandardMinorOpcode); | |
198 | } |