1 /*
2  * Copyright 1996 by Frederic Lepied, France. <Frederic.Lepied@sugix.frmug.org>
3  *
4  * Permission to use, copy, modify, distribute, and sell this software and its
5  * documentation for any purpose is  hereby granted without fee, provided that
6  * the  above copyright   notice appear  in   all  copies and  that both  that
7  * copyright  notice   and   this  permission   notice  appear  in  supporting
8  * documentation, and that   the  name of  the authors  not  be  used  in
9  * advertising or publicity pertaining to distribution of the software without
10  * specific,  written      prior  permission.     The authors  make  no
11  * representations about the suitability of this software for any purpose.  It
12  * is provided "as is" without express or implied warranty.
13  *
14  * THE AUTHORS DISCLAIM ALL   WARRANTIES WITH REGARD  TO  THIS SOFTWARE,
15  * INCLUDING ALL IMPLIED   WARRANTIES OF MERCHANTABILITY  AND   FITNESS, IN NO
16  * EVENT  SHALL THE AUTHORS  BE   LIABLE   FOR ANY  SPECIAL, INDIRECT   OR
17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18  * DATA  OR PROFITS, WHETHER  IN  AN ACTION OF  CONTRACT,  NEGLIGENCE OR OTHER
19  * TORTIOUS  ACTION, ARISING    OUT OF OR   IN  CONNECTION  WITH THE USE    OR
20  * PERFORMANCE OF THIS SOFTWARE.
21  *
22  */
23 
24 #include "xinput.h"
25 #include <ctype.h>
26 #include <string.h>
27 
28 int xi_opcode;
29 
30 typedef int (*prog)(Display* display, int argc, char *argv[],
31 		    char *prog_name, char *prog_desc);
32 
33 typedef struct
34 {
35     char	*func_name;
36     char	*arg_desc;
37     prog	func;
38 } entry;
39 
40 static entry drivers[] =
41 {
42     {"get-feedbacks",
43      "<device name>",
44      get_feedbacks
45     },
46     {"set-ptr-feedback",
47      "<device name> <threshold> <num> <denom>",
48      set_ptr_feedback
49     },
50     {"set-integer-feedback",
51      "<device name> <feedback id> <value>",
52      set_integer_feedback
53     },
54     {"get-button-map",
55      "<device name>",
56      get_button_map
57     },
58     {"set-button-map",
59      "<device name> <map button 1> [<map button 2> [...]]",
60      set_button_map
61     },
62     {"set-pointer",
63      "<device name> [<x index> <y index>]",
64      set_pointer
65     },
66     {"set-mode",
67      "<device name> ABSOLUTE|RELATIVE",
68      set_mode
69     },
70     {"list",
71      "[--short || --long || --name-only || --id-only] [<device name>...]",
72      list
73     },
74     {"query-state",
75      "<device name>",
76      query_state
77     },
78     {"test",
79      "[-proximity] <device name>",
80      test
81     },
82 #if HAVE_XI2
83     { "create-master",
84       "<id> [<sendCore (dflt:1)>] [<enable (dflt:1)>]",
85       create_master
86     },
87     { "remove-master",
88       "<id> [Floating|AttachToMaster (dflt:Floating)] [<returnPointer>] [<returnKeyboard>]",
89       remove_master
90     },
91     { "reattach",
92       "<id> <master>",
93       change_attachment
94     },
95     { "float",
96       "<id>",
97       float_device
98     },
99     { "set-cp",
100       "<window> <device>",
101       set_clientpointer
102     },
103     { "test-xi2",
104       "[--root] <device>",
105       test_xi2,
106     },
107     { "map-to-output",
108       "<device> <output name>",
109       map_to_output,
110     },
111 #endif
112     { "list-props",
113       "<device> [<device> ...]",
114       list_props
115     },
116     { "set-int-prop",
117       "<device> <property> <format (8, 16, 32)> <val> [<val> ...]",
118       set_int_prop
119     },
120     { "set-float-prop",
121       "<device> <property> <val> [<val> ...]",
122       set_float_prop
123     },
124     { "set-atom-prop",
125       "<device> <property> <val> [<val> ...]",
126       set_atom_prop
127     },
128     { "watch-props",
129       "<device>",
130       watch_props
131     },
132     { "delete-prop",
133       "<device> <property>",
134       delete_prop
135     },
136     { "set-prop",
137       "<device> [--type=atom|float|int] [--format=8|16|32] <property> <val> [<val> ...]",
138       set_prop
139     },
140     {
141       "disable",
142       "<device>",
143       disable,
144     },
145     {
146       "enable",
147       "<device>",
148       enable,
149     },
150     {NULL, NULL, NULL
151     }
152 };
153 
154 static const char version_id[] = VERSION;
155 
156 static int
print_version(void)157 print_version(void)
158 {
159     XExtensionVersion	*version;
160     Display *display;
161 
162     printf("xinput version %s\n", version_id);
163 
164     display = XOpenDisplay(NULL);
165 
166     printf("XI version on server: ");
167 
168     if (display == NULL)
169         printf("Failed to open display.\n");
170     else {
171         version = XGetExtensionVersion(display, INAME);
172         if (!version || (version == (XExtensionVersion*) NoSuchExtension))
173             printf(" Extension not supported.\n");
174         else {
175             printf("%d.%d\n", version->major_version,
176                     version->minor_version);
177             XFree(version);
178             return 0;
179         }
180     }
181 
182     return 1;
183 }
184 
185 int
xinput_version(Display * display)186 xinput_version(Display	*display)
187 {
188     XExtensionVersion	*version;
189     static int vers = -1;
190 
191     if (vers != -1)
192         return vers;
193 
194     version = XGetExtensionVersion(display, INAME);
195 
196     if (version && (version != (XExtensionVersion*) NoSuchExtension)) {
197 	vers = version->major_version;
198 	XFree(version);
199     }
200 
201 #if HAVE_XI2
202     /* Announce our supported version so the server treats us correctly. */
203     if (vers >= XI_2_Major)
204     {
205         const char *forced_version;
206         int maj = 2,
207             min = 0;
208 
209 #if HAVE_XI22
210         min = 2;
211 #elif HAVE_XI21
212         min = 1;
213 #endif
214 
215         forced_version = getenv("XINPUT_XI2_VERSION");
216         if (forced_version) {
217             if (sscanf(forced_version, "%d.%d", &maj, &min) != 2) {
218                 fprintf(stderr, "Invalid format of XINPUT_XI2_VERSION "
219                                 "environment variable. Need major.minor\n");
220                 exit(1);
221             }
222             printf("Overriding XI2 version to: %d.%d\n", maj, min);
223         }
224 
225         XIQueryVersion(display, &maj, &min);
226     }
227 #endif
228 
229     return vers;
230 }
231 
232 XDeviceInfo*
find_device_info(Display * display,char * name,Bool only_extended)233 find_device_info(Display	*display,
234 		 char		*name,
235 		 Bool		only_extended)
236 {
237     XDeviceInfo	*devices;
238     XDeviceInfo *found = NULL;
239     int		loop;
240     int		num_devices;
241     int		len = strlen(name);
242     Bool	is_id = True;
243     XID		id = (XID)-1;
244 
245     for(loop=0; loop<len; loop++) {
246 	if (!isdigit(name[loop])) {
247 	    is_id = False;
248 	    break;
249 	}
250     }
251 
252     if (is_id) {
253 	id = atoi(name);
254     }
255 
256     devices = XListInputDevices(display, &num_devices);
257 
258     for(loop=0; loop<num_devices; loop++) {
259 	if ((!only_extended || (devices[loop].use >= IsXExtensionDevice)) &&
260 	    ((!is_id && strcmp(devices[loop].name, name) == 0) ||
261 	     (is_id && devices[loop].id == id))) {
262 	    if (found) {
263 	        fprintf(stderr,
264 	                "Warning: There are multiple devices named '%s'.\n"
265 	                "To ensure the correct one is selected, please use "
266 	                "the device ID instead.\n\n", name);
267 		return NULL;
268 	    } else {
269 		found = &devices[loop];
270 	    }
271 	}
272     }
273     return found;
274 }
275 
276 #if HAVE_XI2
is_pointer(int use)277 Bool is_pointer(int use)
278 {
279     return use == XIMasterPointer || use == XISlavePointer;
280 }
281 
is_keyboard(int use)282 Bool is_keyboard(int use)
283 {
284     return use == XIMasterKeyboard || use == XISlaveKeyboard;
285 }
286 
device_matches(XIDeviceInfo * info,char * name)287 Bool device_matches(XIDeviceInfo *info, char *name)
288 {
289     if (strcmp(info->name, name) == 0) {
290         return True;
291     }
292 
293     if (strncmp(name, "pointer:", strlen("pointer:")) == 0 &&
294         strcmp(info->name, name + strlen("pointer:")) == 0 &&
295         is_pointer(info->use)) {
296         return True;
297     }
298 
299     if (strncmp(name, "keyboard:", strlen("keyboard:")) == 0 &&
300         strcmp(info->name, name + strlen("keyboard:")) == 0 &&
301         is_keyboard(info->use)) {
302         return True;
303     }
304 
305     return False;
306 }
307 
308 XIDeviceInfo*
xi2_find_device_info(Display * display,char * name)309 xi2_find_device_info(Display *display, char *name)
310 {
311     XIDeviceInfo *info;
312     XIDeviceInfo *found = NULL;
313     int ndevices;
314     Bool is_id = True;
315     int i, id = -1;
316 
317     for(i = 0; i < strlen(name); i++) {
318 	if (!isdigit(name[i])) {
319 	    is_id = False;
320 	    break;
321 	}
322     }
323 
324     if (is_id) {
325 	id = atoi(name);
326     }
327 
328     info = XIQueryDevice(display, XIAllDevices, &ndevices);
329     for(i = 0; i < ndevices; i++)
330     {
331         if (is_id ? info[i].deviceid == id : device_matches (&info[i], name)) {
332             if (found) {
333                 fprintf(stderr,
334                         "Warning: There are multiple devices matching '%s'.\n"
335                         "To ensure the correct one is selected, please use "
336                         "the device ID, or prefix the\ndevice name with "
337                         "'pointer:' or 'keyboard:' as appropriate.\n\n", name);
338                 XIFreeDeviceInfo(info);
339                 return NULL;
340             } else {
341                 found = &info[i];
342             }
343         }
344     }
345 
346     return found;
347 }
348 #endif
349 
350 static void
usage(void)351 usage(void)
352 {
353     entry	*pdriver = drivers;
354 
355     fprintf(stderr, "usage :\n");
356 
357     while(pdriver->func_name) {
358 	fprintf(stderr, "\txinput %s %s\n", pdriver->func_name,
359 		pdriver->arg_desc);
360 	pdriver++;
361     }
362 }
363 
364 static Bool
is_xwayland(Display * dpy)365 is_xwayland(Display *dpy)
366 {
367     XDeviceInfo *devices;
368     int n;
369     Bool is_xwayland = False;
370 
371     devices = XListInputDevices(dpy, &n);
372     while (n-- > 0) {
373         if (strncmp(devices[n].name, "xwayland-", 9) == 0) {
374             is_xwayland = True;
375             break;
376         }
377     }
378 
379     XFreeDeviceList(devices);
380 
381     return is_xwayland;
382 }
383 
384 int
main(int argc,char * argv[])385 main(int argc, char * argv[])
386 {
387     Display	*display;
388     entry	*driver = drivers;
389     char        *func;
390     int event, error;
391 
392     if (argc > 1) {
393 	func = argv[1];
394 	while(func[0] == '-') func++;
395     } else {
396 	func = "list";
397     }
398 
399     if (strcmp("version", func) == 0) {
400         return print_version();
401     }
402 
403     if (strcmp("help", func) == 0) {
404         usage();
405         return 0;
406     }
407 
408     display = XOpenDisplay(NULL);
409 
410     if (display == NULL) {
411 	fprintf(stderr, "Unable to connect to X server\n");
412 	goto out;
413     }
414 
415     if (!XQueryExtension(display, "XInputExtension", &xi_opcode, &event, &error)) {
416         printf("X Input extension not available.\n");
417         goto out;
418     }
419 
420     if (!xinput_version(display)) {
421 	fprintf(stderr, "%s extension not available\n", INAME);
422 	goto out;
423     }
424 
425     if (is_xwayland(display))
426         fprintf(stderr, "WARNING: running xinput against an Xwayland server. See the xinput man page for details.\n");
427 
428     while(driver->func_name) {
429 	if (strcmp(driver->func_name, func) == 0) {
430 	    int	r = (*driver->func)(display, argc-2, argv+2,
431 				    driver->func_name, driver->arg_desc);
432 	    XSync(display, False);
433 	    XCloseDisplay(display);
434 	    return r;
435 	}
436 	driver++;
437     }
438 
439     usage();
440 
441 out:
442     if (display)
443         XCloseDisplay(display);
444     return EXIT_FAILURE;
445 }
446 
447 /* end of xinput.c */
448