| 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 | } |