/*********************************************************** Copyright 1987, 1998 The Open Group Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ /* $Xorg: property.c,v 1.4 2001/02/09 02:04:40 xorgcvs Exp $ */ #include "X.h" #define NEED_REPLIES #define NEED_EVENTS #include "Xproto.h" #include "windowstr.h" #include "propertyst.h" #include "dixstruct.h" #ifdef XCSECURITY #define _SECURITY_SERVER #include "extensions/security.h" #endif extern void CopySwap16Write(), CopySwap32Write(), Swap32Write(); /***************************************************************** * Property Stuff * * ChangeProperty, DeleteProperty, GetProperties, * ListProperties * * Properties below to windows. A allocate slots each time * a property is added. No fancy searching done. * *****************************************************************/ #ifdef notdef static void PrintPropertys(pWin) WindowPtr pWin; { PropertyPtr pProp; register int j; pProp = pWin->userProps; while (pProp) { ErrorF( "%x %x\n", pProp->propertyName, pProp->type); ErrorF("property format: %d\n", pProp->format); ErrorF("property data: \n"); for (j=0; j<(pProp->format/8)*pProp->size; j++) ErrorF("%c\n", pProp->data[j]); pProp = pProp->next; } } #endif int ProcRotateProperties(client) ClientPtr client; { int i, j, delta; REQUEST(xRotatePropertiesReq); WindowPtr pWin; register Atom * atoms; PropertyPtr * props; /* array of pointer */ PropertyPtr pProp; xEvent event; REQUEST_FIXED_SIZE(xRotatePropertiesReq, stuff->nAtoms << 2); UpdateCurrentTime(); pWin = (WindowPtr) SecurityLookupWindow(stuff->window, client, SecurityWriteAccess); if (!pWin) return(BadWindow); if (!stuff->nAtoms) return(Success); atoms = (Atom *) & stuff[1]; props = (PropertyPtr *)ALLOCATE_LOCAL(stuff->nAtoms * sizeof(PropertyPtr)); if (!props) return(BadAlloc); for (i = 0; i < stuff->nAtoms; i++) { #ifdef XCSECURITY char action = SecurityCheckPropertyAccess(client, pWin, atoms[i], SecurityReadAccess|SecurityWriteAccess); #endif if (!ValidAtom(atoms[i]) #ifdef XCSECURITY || (SecurityErrorOperation == action) #endif ) { DEALLOCATE_LOCAL(props); client->errorValue = atoms[i]; return BadAtom; } #ifdef XCSECURITY if (SecurityIgnoreOperation == action) { DEALLOCATE_LOCAL(props); return Success; } #endif for (j = i + 1; j < stuff->nAtoms; j++) if (atoms[j] == atoms[i]) { DEALLOCATE_LOCAL(props); return BadMatch; } pProp = wUserProps (pWin); while (pProp) { if (pProp->propertyName == atoms[i]) goto found; pProp = pProp->next; } DEALLOCATE_LOCAL(props); return BadMatch; found: props[i] = pProp; } delta = stuff->nPositions; /* If the rotation is a complete 360 degrees, then moving the properties around and generating PropertyNotify events should be skipped. */ if ( (stuff->nAtoms != 0) && (abs(delta) % stuff->nAtoms) != 0 ) { while (delta < 0) /* faster if abs value is small */ delta += stuff->nAtoms; for (i = 0; i < stuff->nAtoms; i++) { /* Generate a PropertyNotify event for each property whose value is changed in the order in which they appear in the request. */ event.u.u.type = PropertyNotify; event.u.property.window = pWin->drawable.id; event.u.property.state = PropertyNewValue; event.u.property.atom = props[i]->propertyName; event.u.property.time = currentTime.milliseconds; DeliverEvents(pWin, &event, 1, (WindowPtr)NULL); props[i]->propertyName = atoms[(i + delta) % stuff->nAtoms]; } } DEALLOCATE_LOCAL(props); return Success; } int ProcChangeProperty(client) ClientPtr client; { WindowPtr pWin; char format, mode; unsigned long len; int sizeInBytes; int totalSize; int err; REQUEST(xChangePropertyReq); REQUEST_AT_LEAST_SIZE(xChangePropertyReq); UpdateCurrentTime(); format = stuff->format; mode = stuff->mode; if ((mode != PropModeReplace) && (mode != PropModeAppend) && (mode != PropModePrepend)) { client->errorValue = mode; return BadValue; } if ((format != 8) && (format != 16) && (format != 32)) { client->errorValue = format; return BadValue; } len = stuff->nUnits; if (len > ((0xffffffff - sizeof(xChangePropertyReq)) >> 2)) return BadLength; sizeInBytes = format>>3; totalSize = len * sizeInBytes; REQUEST_FIXED_SIZE(xChangePropertyReq, totalSize); pWin = (WindowPtr)SecurityLookupWindow(stuff->window, client, SecurityWriteAccess); if (!pWin) return(BadWindow); if (!ValidAtom(stuff->property)) { client->errorValue = stuff->property; return(BadAtom); } if (!ValidAtom(stuff->type)) { client->errorValue = stuff->type; return(BadAtom); } #ifdef XCSECURITY switch (SecurityCheckPropertyAccess(client, pWin, stuff->property, SecurityWriteAccess)) { case SecurityErrorOperation: client->errorValue = stuff->property; return BadAtom; case SecurityIgnoreOperation: return Success; } #endif #ifdef LBX err = LbxChangeWindowProperty(client, pWin, stuff->property, stuff->type, (int)format, (int)mode, len, TRUE, (pointer)&stuff[1], TRUE, NULL); #else err = ChangeWindowProperty(pWin, stuff->property, stuff->type, (int)format, (int)mode, len, (pointer)&stuff[1], TRUE); #endif if (err != Success) return err; else return client->noClientException; } int ChangeWindowProperty(pWin, property, type, format, mode, len, value, sendevent) WindowPtr pWin; Atom property, type; int format, mode; unsigned long len; pointer value; Bool sendevent; { #ifdef LBX return LbxChangeWindowProperty(NULL, pWin, property, type, format, mode, len, TRUE, value, sendevent, NULL); #else PropertyPtr pProp; xEvent event; int sizeInBytes; int totalSize; pointer data; sizeInBytes = format>>3; totalSize = len * sizeInBytes; /* first see if property already exists */ pProp = wUserProps (pWin); while (pProp) { if (pProp->propertyName == property) break; pProp = pProp->next; } if (!pProp) /* just add to list */ { if (!pWin->optional && !MakeWindowOptional (pWin)) return(BadAlloc); pProp = (PropertyPtr)xalloc(sizeof(PropertyRec)); if (!pProp) return(BadAlloc); data = (pointer)xalloc(totalSize); if (!data && len) { xfree(pProp); return(BadAlloc); } pProp->propertyName = property; pProp->type = type; pProp->format = format; pProp->data = data; if (len) memmove((char *)data, (char *)value, totalSize); pProp->size = len; pProp->next = pWin->optional->userProps; pWin->optional->userProps = pProp; } else { /* To append or prepend to a property the request format and type must match those of the already defined property. The existing format and type are irrelevant when using the mode "PropModeReplace" since they will be written over. */ if ((format != pProp->format) && (mode != PropModeReplace)) return(BadMatch); if ((pProp->type != type) && (mode != PropModeReplace)) return(BadMatch); if (mode == PropModeReplace) { if (totalSize != pProp->size * (pProp->format >> 3)) { data = (pointer)xrealloc(pProp->data, totalSize); if (!data && len) return(BadAlloc); pProp->data = data; } if (len) memmove((char *)pProp->data, (char *)value, totalSize); pProp->size = len; pProp->type = type; pProp->format = format; } else if (len == 0) { /* do nothing */ } else if (mode == PropModeAppend) { data = (pointer)xrealloc(pProp->data, sizeInBytes * (len + pProp->size)); if (!data) return(BadAlloc); pProp->data = data; memmove(&((char *)data)[pProp->size * sizeInBytes], (char *)value, totalSize); pProp->size += len; } else if (mode == PropModePrepend) { data = (pointer)xalloc(sizeInBytes * (len + pProp->size)); if (!data) return(BadAlloc); memmove(&((char *)data)[totalSize], (char *)pProp->data, (int)(pProp->size * sizeInBytes)); memmove((char *)data, (char *)value, totalSize); xfree(pProp->data); pProp->data = data; pProp->size += len; } } if (sendevent) { event.u.u.type = PropertyNotify; event.u.property.window = pWin->drawable.id; event.u.property.state = PropertyNewValue; event.u.property.atom = pProp->propertyName; event.u.property.time = currentTime.milliseconds; DeliverEvents(pWin, &event, 1, (WindowPtr)NULL); } return(Success); #endif } int DeleteProperty(pWin, propName) WindowPtr pWin; Atom propName; { PropertyPtr pProp, prevProp; xEvent event; if (!(pProp = wUserProps (pWin))) return(Success); prevProp = (PropertyPtr)NULL; while (pProp) { if (pProp->propertyName == propName) break; prevProp = pProp; pProp = pProp->next; } if (pProp) { if (prevProp == (PropertyPtr)NULL) /* takes care of head */ { if (!(pWin->optional->userProps = pProp->next)) CheckWindowOptionalNeed (pWin); } else { prevProp->next = pProp->next; } #ifdef LBX if (pProp->tag_id) TagDeleteTag(pProp->tag_id); #endif event.u.u.type = PropertyNotify; event.u.property.window = pWin->drawable.id; event.u.property.state = PropertyDelete; event.u.property.atom = pProp->propertyName; event.u.property.time = currentTime.milliseconds; DeliverEvents(pWin, &event, 1, (WindowPtr)NULL); xfree(pProp->data); xfree(pProp); } return(Success); } void DeleteAllWindowProperties(pWin) WindowPtr pWin; { PropertyPtr pProp, pNextProp; xEvent event; pProp = wUserProps (pWin); while (pProp) { #ifdef LBX if (pProp->tag_id) TagDeleteTag(pProp->tag_id); #endif event.u.u.type = PropertyNotify; event.u.property.window = pWin->drawable.id; event.u.property.state = PropertyDelete; event.u.property.atom = pProp->propertyName; event.u.property.time = currentTime.milliseconds; DeliverEvents(pWin, &event, 1, (WindowPtr)NULL); pNextProp = pProp->next; xfree(pProp->data); xfree(pProp); pProp = pNextProp; } } static int NullPropertyReply(client, propertyType, format, reply) ClientPtr client; ATOM propertyType; int format; xGetPropertyReply *reply; { reply->nItems = 0; reply->length = 0; reply->bytesAfter = 0; reply->propertyType = propertyType; reply->format = format; WriteReplyToClient(client, sizeof(xGenericReply), reply); return(client->noClientException); } /***************** * GetProperty * If type Any is specified, returns the property from the specified * window regardless of its type. If a type is specified, returns the * property only if its type equals the specified type. * If delete is True and a property is returned, the property is also * deleted from the window and a PropertyNotify event is generated on the * window. *****************/ int ProcGetProperty(client) ClientPtr client; { PropertyPtr pProp, prevProp; unsigned long n, len, ind; WindowPtr pWin; xGetPropertyReply reply; REQUEST(xGetPropertyReq); REQUEST_SIZE_MATCH(xGetPropertyReq); if (stuff->delete) UpdateCurrentTime(); pWin = (WindowPtr)SecurityLookupWindow(stuff->window, client, SecurityReadAccess); if (!pWin) return BadWindow; if (!ValidAtom(stuff->property)) { client->errorValue = stuff->property; return(BadAtom); } if ((stuff->delete != xTrue) && (stuff->delete != xFalse)) { client->errorValue = stuff->delete; return(BadValue); } if ((stuff->type != AnyPropertyType) && !ValidAtom(stuff->type)) { client->errorValue = stuff->type; return(BadAtom); } pProp = wUserProps (pWin); prevProp = (PropertyPtr)NULL; while (pProp) { if (pProp->propertyName == stuff->property) break; prevProp = pProp; pProp = pProp->next; } reply.type = X_Reply; reply.sequenceNumber = client->sequence; if (!pProp) return NullPropertyReply(client, None, 0, &reply); #ifdef XCSECURITY { Mask access_mode = SecurityReadAccess; if (stuff->delete) access_mode |= SecurityDestroyAccess; switch(SecurityCheckPropertyAccess(client, pWin, stuff->property, access_mode)) { case SecurityErrorOperation: client->errorValue = stuff->property; return BadAtom;; case SecurityIgnoreOperation: return NullPropertyReply(client, pProp->type, pProp->format, &reply); } } #endif /* If the request type and actual type don't match. Return the property information, but not the data. */ if (((stuff->type != pProp->type) && (stuff->type != AnyPropertyType)) ) { reply.bytesAfter = pProp->size; reply.format = pProp->format; reply.length = 0; reply.nItems = 0; reply.propertyType = pProp->type; WriteReplyToClient(client, sizeof(xGenericReply), &reply); return(Success); } #ifdef LBX /* make sure we have the current value */ if (pProp->tag_id && pProp->owner_pid) { LbxStallPropRequest(client, pProp); return client->noClientException; } #endif /* * Return type, format, value to client */ n = (pProp->format/8) * pProp->size; /* size (bytes) of prop */ ind = stuff->longOffset << 2; /* If longOffset is invalid such that it causes "len" to be negative, it's a value error. */ if (n < ind) { client->errorValue = stuff->longOffset; return BadValue; } len = min(n - ind, 4 * stuff->longLength); reply.bytesAfter = n - (ind + len); reply.format = pProp->format; reply.length = (len + 3) >> 2; reply.nItems = len / (pProp->format / 8 ); reply.propertyType = pProp->type; if (stuff->delete && (reply.bytesAfter == 0)) { /* send the event */ xEvent event; event.u.u.type = PropertyNotify; event.u.property.window = pWin->drawable.id; event.u.property.state = PropertyDelete; event.u.property.atom = pProp->propertyName; event.u.property.time = currentTime.milliseconds; DeliverEvents(pWin, &event, 1, (WindowPtr)NULL); } WriteReplyToClient(client, sizeof(xGenericReply), &reply); if (len) { switch (reply.format) { case 32: client->pSwapReplyFunc = CopySwap32Write; break; case 16: client->pSwapReplyFunc = CopySwap16Write; break; default: client->pSwapReplyFunc = (void (*) ())WriteToClient; break; } WriteSwappedDataToClient(client, len, (char *)pProp->data + ind); } if (stuff->delete && (reply.bytesAfter == 0)) { /* delete the Property */ #ifdef LBX if (pProp->tag_id) TagDeleteTag(pProp->tag_id); #endif if (prevProp == (PropertyPtr)NULL) /* takes care of head */ { if (!(pWin->optional->userProps = pProp->next)) CheckWindowOptionalNeed (pWin); } else prevProp->next = pProp->next; xfree(pProp->data); xfree(pProp); } return(client->noClientException); } int ProcListProperties(client) ClientPtr client; { Atom *pAtoms, *temppAtoms; xListPropertiesReply xlpr; int numProps = 0; WindowPtr pWin; PropertyPtr pProp; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); pWin = (WindowPtr)SecurityLookupWindow(stuff->id, client, SecurityReadAccess); if (!pWin) return(BadWindow); pProp = wUserProps (pWin); while (pProp) { pProp = pProp->next; numProps++; } if (numProps) if(!(pAtoms = (Atom *)ALLOCATE_LOCAL(numProps * sizeof(Atom)))) return(BadAlloc); xlpr.type = X_Reply; xlpr.nProperties = numProps; xlpr.length = (numProps * sizeof(Atom)) >> 2; xlpr.sequenceNumber = client->sequence; pProp = wUserProps (pWin); temppAtoms = pAtoms; while (pProp) { *temppAtoms++ = pProp->propertyName; pProp = pProp->next; } WriteReplyToClient(client, sizeof(xGenericReply), &xlpr); if (numProps) { client->pSwapReplyFunc = Swap32Write; WriteSwappedDataToClient(client, numProps * sizeof(Atom), pAtoms); DEALLOCATE_LOCAL(pAtoms); } return(client->noClientException); } int ProcDeleteProperty(client) register ClientPtr client; { WindowPtr pWin; REQUEST(xDeletePropertyReq); int result; REQUEST_SIZE_MATCH(xDeletePropertyReq); UpdateCurrentTime(); pWin = (WindowPtr)SecurityLookupWindow(stuff->window, client, SecurityWriteAccess); if (!pWin) return(BadWindow); if (!ValidAtom(stuff->property)) { client->errorValue = stuff->property; return (BadAtom); } #ifdef XCSECURITY switch(SecurityCheckPropertyAccess(client, pWin, stuff->property, SecurityDestroyAccess)) { case SecurityErrorOperation: client->errorValue = stuff->property; return BadAtom;; case SecurityIgnoreOperation: return Success; } #endif result = DeleteProperty(pWin, stuff->property); if (client->noClientException != Success) return(client->noClientException); else return(result); }