diff options
Diffstat (limited to 'nx-X11/lib/src/GetPntMap.c')
-rw-r--r-- | nx-X11/lib/src/GetPntMap.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/nx-X11/lib/src/GetPntMap.c b/nx-X11/lib/src/GetPntMap.c new file mode 100644 index 000000000..07625f8a0 --- /dev/null +++ b/nx-X11/lib/src/GetPntMap.c @@ -0,0 +1,132 @@ +/* + +Copyright 1986, 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. + +*/ + + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include <limits.h> + +#ifdef MIN /* some systems define this in <sys/param.h> */ +#undef MIN +#endif +#define MIN(a, b) ((a) < (b) ? (a) : (b)) + +int XGetPointerMapping ( + register Display *dpy, + unsigned char *map, /* RETURN */ + int nmaps) + +{ + unsigned char mapping[256]; /* known fixed size */ + unsigned long nbytes, remainder = 0; + xGetPointerMappingReply rep; + _X_UNUSED register xReq *req; + + LockDisplay(dpy); + GetEmptyReq(GetPointerMapping, req); + if (! _XReply(dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return 0; + } + + /* Don't count on the server returning a valid value */ + if (rep.length >= (INT_MAX >> 2)) { + _XEatDataWords(dpy, rep.length); + UnlockDisplay(dpy); + SyncHandle(); + return 0; + } + + nbytes = (unsigned long) rep.length << 2; + if (nbytes > sizeof mapping) { + remainder = nbytes - sizeof mapping; + nbytes = sizeof mapping; + } + _XRead (dpy, (char *)mapping, nbytes); + /* don't return more data than the user asked for. */ + if (rep.nElts) { + memcpy ((char *) map, (char *) mapping, + MIN((int)rep.nElts, nmaps) ); + } + + if (remainder) + _XEatData(dpy, remainder); + + UnlockDisplay(dpy); + SyncHandle(); + return ((int) rep.nElts); +} + +KeySym * +XGetKeyboardMapping (Display *dpy, +#if NeedWidePrototypes + unsigned int first_keycode, +#else + KeyCode first_keycode, +#endif + int count, + int *keysyms_per_keycode) +{ + unsigned long nbytes; + CARD32 nkeysyms; + register KeySym *mapping = NULL; + xGetKeyboardMappingReply rep; + register xGetKeyboardMappingReq *req; + + LockDisplay(dpy); + GetReq(GetKeyboardMapping, req); + req->firstKeyCode = first_keycode; + req->count = count; + if (! _XReply(dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return (KeySym *) NULL; + } + + nkeysyms = rep.length; + if (nkeysyms > 0) { + if (nkeysyms < (INT_MAX / sizeof (KeySym))) { + nbytes = nkeysyms * sizeof (KeySym); + mapping = Xmalloc (nbytes); + } + if (! mapping) { + _XEatDataWords(dpy, rep.length); + UnlockDisplay(dpy); + SyncHandle(); + return (KeySym *) NULL; + } + nbytes = nkeysyms << 2; + _XRead32 (dpy, (long *) mapping, nbytes); + } + *keysyms_per_keycode = rep.keySymsPerKeyCode; + UnlockDisplay(dpy); + SyncHandle(); + return (mapping); +} + |