aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/xkb/ddxLoad.c
blob: 19614231836f088e7eecfb27a3e9f58bcc113f04 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
/************************************************************
Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.

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 Silicon Graphics not be 
used in advertising or publicity pertaining to distribution 
of the software without specific prior written permission.
Silicon Graphics makes no representation about the suitability 
of this software for any purpose. It is provided "as is"
without any express or implied warranty.

SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 
AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
GRAPHICS 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.

********************************************************/

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include <xkb-config.h>

#include <stdio.h>
#include <ctype.h>
#include <X11/X.h>
#include <X11/Xos.h>
#include <X11/Xproto.h>
#include <X11/keysym.h>
#include <X11/extensions/XKM.h>
#include "inputstr.h"
#include "scrnintstr.h"
#include "windowstr.h"
#define	XKBSRV_NEED_FILE_FUNCS
#include <xkbsrv.h>
#include <X11/extensions/XI.h>
#include "xkb.h"

	/*
	 * If XKM_OUTPUT_DIR specifies a path without a leading slash, it is
	 * relative to the top-level XKB configuration directory.
	 * Making the server write to a subdirectory of that directory
	 * requires some work in the general case (install procedure
	 * has to create links to /var or somesuch on many machines),
	 * so we just compile into /usr/tmp for now.
	 */
#ifndef XKM_OUTPUT_DIR
#define	XKM_OUTPUT_DIR	"compiled/"
#endif

#define	PRE_ERROR_MSG "\"The XKEYBOARD keymap compiler (xkbcomp) reports:\""
#define	ERROR_PREFIX	"\"> \""
#define	POST_ERROR_MSG1 "\"Errors from xkbcomp are not fatal to the X server\""
#define	POST_ERROR_MSG2 "\"End of messages from xkbcomp\""

#if defined(WIN32)
#define PATHSEPARATOR "\\"
#else
#define PATHSEPARATOR "/"
#endif

#ifdef WIN32

#include <X11/Xwindows.h>
const char* 
Win32TempDir()
{
    static char buffer[PATH_MAX];
    if (GetTempPath(sizeof(buffer), buffer))
    {
        int len;
        buffer[sizeof(buffer)-1] = 0;
        len = strlen(buffer);
        if (len > 0)
            if (buffer[len-1] == '\\')
                buffer[len-1] = 0;
        return buffer;
    }
    if (getenv("TEMP") != NULL)
        return getenv("TEMP");
    else if (getenv("TMP") != NULL)
        return getenv("TEMP");
    else
        return "/tmp";
}

int 
Win32System(const char *cmdline)
{
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
    DWORD dwExitCode;
    char *cmd = strdup(cmdline);

    ZeroMemory( &si, sizeof(si) );
    si.cb = sizeof(si);
    ZeroMemory( &pi, sizeof(pi) );

    if (!CreateProcess(NULL, cmd, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi)) 
    {
	LPVOID buffer;
	if (!FormatMessage( 
		    FORMAT_MESSAGE_ALLOCATE_BUFFER | 
		    FORMAT_MESSAGE_FROM_SYSTEM | 
		    FORMAT_MESSAGE_IGNORE_INSERTS,
		    NULL,
		    GetLastError(),
		    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
		    (LPTSTR) &buffer,
		    0,
		    NULL ))
	{
	    ErrorF("[xkb] Starting '%s' failed!\n", cmdline); 
	}
	else
	{
	    ErrorF("[xkb] Starting '%s' failed: %s", cmdline, (char *)buffer); 
	    LocalFree(buffer);
	}

	free(cmd);
	return -1;
    }
    /* Wait until child process exits. */
    WaitForSingleObject( pi.hProcess, INFINITE );

    GetExitCodeProcess( pi.hProcess, &dwExitCode);
    
    /* Close process and thread handles. */
    CloseHandle( pi.hProcess );
    CloseHandle( pi.hThread );
    free(cmd);

    return dwExitCode;
}
#undef System
#define System(x) Win32System(x)
#endif

static void
OutputDirectory(
    char* outdir,
    size_t size)
{
#ifndef WIN32
    /* Can we write an xkm and then open it too? */
    if (access(XKM_OUTPUT_DIR, W_OK | X_OK) == 0 && (strlen(XKM_OUTPUT_DIR) < size))
    {
	(void) strcpy (outdir, XKM_OUTPUT_DIR);
    } else
#else
    if (strlen(Win32TempDir()) + 1 < size)
    {
	(void) strcpy(outdir, Win32TempDir());
	(void) strcat(outdir, "\\");
    } else 
#endif
    if (strlen("/tmp/") < size)
    {
	(void) strcpy (outdir, "/tmp/");
    }
}

static Bool
XkbDDXCompileKeymapByNames(	XkbDescPtr		xkb,
				XkbComponentNamesPtr	names,
				unsigned		want,
				unsigned		need,
				char *			nameRtrn,
				int			nameRtrnLen)
{
    FILE *	out;
    char	*buf = NULL, keymap[PATH_MAX], xkm_output_dir[PATH_MAX];

    const char	*emptystring = "";
    char *xkbbasedirflag = NULL;
    const char	*xkbbindir = emptystring;
    const char	*xkbbindirsep = emptystring;

#ifdef WIN32
    /* WIN32 has no popen. The input must be stored in a file which is
       used as input for xkbcomp. xkbcomp does not read from stdin. */
    char tmpname[PATH_MAX];
    const char *xkmfile = tmpname;
#else
    const char *xkmfile = "-";
#endif

    snprintf(keymap, sizeof(keymap), "server-%s", display);

    OutputDirectory(xkm_output_dir, sizeof(xkm_output_dir));

#ifdef WIN32
    strcpy(tmpname, Win32TempDir());
    strcat(tmpname, "\\xkb_XXXXXX");
    (void) mktemp(tmpname);
#endif

    if (XkbBaseDirectory != NULL) {
	if (asprintf(&xkbbasedirflag, "\"-R%s\"", XkbBaseDirectory) == -1)
	    xkbbasedirflag = NULL;
    }

    if (XkbBinDirectory != NULL) {
	int ld = strlen(XkbBinDirectory);
	int lps = strlen(PATHSEPARATOR);

	xkbbindir = XkbBinDirectory;

	if ((ld >= lps) &&
	    (strcmp(xkbbindir + ld - lps, PATHSEPARATOR) != 0)) {
	    xkbbindirsep = PATHSEPARATOR;
	}
    }

    if (asprintf(&buf,
		 "\"%s%sxkbcomp\" -w %d %s -xkm \"%s\" "
		  "-em1 %s -emp %s -eml %s \"%s%s.xkm\"",
		 xkbbindir, xkbbindirsep,
		 ((xkbDebugFlags < 2) ? 1 :
		  ((xkbDebugFlags > 10) ? 10 : (int) xkbDebugFlags)),
		 xkbbasedirflag ? xkbbasedirflag : "", xkmfile,
		 PRE_ERROR_MSG, ERROR_PREFIX, POST_ERROR_MSG1,
		 xkm_output_dir, keymap) == -1)
	buf = NULL;

    free(xkbbasedirflag);

    if (!buf) {
        LogMessage(X_ERROR, "XKB: Could not invoke xkbcomp: not enough memory\n");
        return FALSE;
    }
    
#ifndef WIN32
    out= Popen(buf,"w");
#else
    out= fopen(tmpname, "w");
#endif
    
    if (out!=NULL) {
#ifdef DEBUG
    if (xkbDebugFlags) {
       ErrorF("[xkb] XkbDDXCompileKeymapByNames compiling keymap:\n");
       XkbWriteXKBKeymapForNames(stderr,names,xkb,want,need);
    }
#endif
	XkbWriteXKBKeymapForNames(out,names,xkb,want,need);
#ifndef WIN32
	if (Pclose(out)==0)
#else
	if (fclose(out)==0 && System(buf) >= 0)
#endif
	{
            if (xkbDebugFlags)
                DebugF("[xkb] xkb executes: %s\n",buf);
	    if (nameRtrn) {
		strlcpy(nameRtrn,keymap,nameRtrnLen);
	    }
            free(buf);
#ifdef WIN32
	    unlink(tmpname);
#endif
	    return TRUE;
	}
	else
	    LogMessage(X_ERROR, "Error compiling keymap (%s)\n", keymap);
#ifdef WIN32
        /* remove the temporary file */
        unlink(tmpname);
#endif
    }
    else {
#ifndef WIN32
	LogMessage(X_ERROR, "XKB: Could not invoke xkbcomp\n");
#else
	LogMessage(X_ERROR, "Could not open file %s\n", tmpname);
#endif
    }
    if (nameRtrn)
	nameRtrn[0]= '\0';
    free(buf);
    return FALSE;
}

static FILE *
XkbDDXOpenConfigFile(char *mapName,char *fileNameRtrn,int fileNameRtrnLen)
{
char	buf[PATH_MAX],xkm_output_dir[PATH_MAX];
FILE *	file;

    buf[0]= '\0';
    if (mapName!=NULL) {
	OutputDirectory(xkm_output_dir, sizeof(xkm_output_dir));
	if ((XkbBaseDirectory!=NULL)&&(xkm_output_dir[0]!='/')
#ifdef WIN32
                &&(!isalpha(xkm_output_dir[0]) || xkm_output_dir[1]!=':')
#endif
                ) {
            if (snprintf(buf, PATH_MAX, "%s/%s%s.xkm", XkbBaseDirectory,
                         xkm_output_dir, mapName) >= PATH_MAX)
                buf[0] = '\0';
	}
	else
	{
            if (snprintf(buf, PATH_MAX, "%s%s.xkm", xkm_output_dir, mapName)
                >= PATH_MAX)
                buf[0] = '\0';
	}
	if (buf[0] != '\0')
	    file= fopen(buf,"rb");
	else file= NULL;
    }
    else file= NULL;
    if ((fileNameRtrn!=NULL)&&(fileNameRtrnLen>0)) {
	strlcpy(fileNameRtrn,buf,fileNameRtrnLen);
    }
    return file;
}

unsigned
XkbDDXLoadKeymapByNames(	DeviceIntPtr		keybd,
				XkbComponentNamesPtr	names,
				unsigned		want,
				unsigned		need,
				XkbDescPtr *		xkbRtrn,
				char *			nameRtrn,
				int 			nameRtrnLen)
{
XkbDescPtr      xkb;
FILE	*	file;
char		fileName[PATH_MAX];
unsigned	missing;

    *xkbRtrn = NULL;
    if ((keybd==NULL)||(keybd->key==NULL)||(keybd->key->xkbInfo==NULL))
	 xkb= NULL;
    else xkb= keybd->key->xkbInfo->desc;
    if ((names->keycodes==NULL)&&(names->types==NULL)&&
	(names->compat==NULL)&&(names->symbols==NULL)&&
	(names->geometry==NULL)) {
        LogMessage(X_ERROR, "XKB: No components provided for device %s\n",
                   keybd->name ? keybd->name : "(unnamed keyboard)");
        return 0;
    }
    else if (!XkbDDXCompileKeymapByNames(xkb,names,want,need,
                                         nameRtrn,nameRtrnLen)){
	LogMessage(X_ERROR, "XKB: Couldn't compile keymap\n");
	return 0;
    }
    file= XkbDDXOpenConfigFile(nameRtrn,fileName,PATH_MAX);
    if (file==NULL) {
	LogMessage(X_ERROR, "Couldn't open compiled keymap file %s\n",fileName);
	return 0;
    }
    missing= XkmReadFile(file,need,want,xkbRtrn);
    if (*xkbRtrn==NULL) {
	LogMessage(X_ERROR, "Error loading keymap %s\n",fileName);
	fclose(file);
	(void) unlink (fileName);
	return 0;
    }
    else {
	DebugF("Loaded XKB keymap %s, defined=0x%x\n",fileName,(*xkbRtrn)->defined);
    }
    fclose(file);
    (void) unlink (fileName);
    return (need|want)&(~missing);
}

Bool
XkbDDXNamesFromRules(	DeviceIntPtr		keybd,
			char *			rules_name,
			XkbRF_VarDefsPtr	defs,
			XkbComponentNamesPtr	names)
{
char 		buf[PATH_MAX];
FILE *		file;
Bool		complete;
XkbRF_RulesPtr	rules;

    if (!rules_name)
	return FALSE;

    if (snprintf(buf, PATH_MAX, "%s/rules/%s", XkbBaseDirectory, rules_name)
        >= PATH_MAX) {
        LogMessage(X_ERROR, "XKB: Rules name is too long\n");
        return FALSE;
    }

    file = fopen(buf, "r");
    if (!file) {
        LogMessage(X_ERROR, "XKB: Couldn't open rules file %s\n", buf);
	return FALSE;
    }

    rules = XkbRF_Create();
    if (!rules) {
        LogMessage(X_ERROR, "XKB: Couldn't create rules struct\n");
	fclose(file);
	return FALSE;
    }

    if (!XkbRF_LoadRules(file, rules)) {
        LogMessage(X_ERROR, "XKB: Couldn't parse rules file %s\n", rules_name);
	fclose(file);
	XkbRF_Free(rules,TRUE);
	return FALSE;
    }

    memset(names, 0, sizeof(*names));
    complete = XkbRF_GetComponents(rules,defs,names);
    fclose(file);
    XkbRF_Free(rules, TRUE);

    if (!complete)
        LogMessage(X_ERROR, "XKB: Rules returned no components\n");

    return complete;
}

static Bool
XkbRMLVOtoKcCGST(DeviceIntPtr dev, XkbRMLVOSet *rmlvo, XkbComponentNamesPtr kccgst)
{
    XkbRF_VarDefsRec mlvo;

    mlvo.model = rmlvo->model;
    mlvo.layout = rmlvo->layout;
    mlvo.variant = rmlvo->variant;
    mlvo.options = rmlvo->options;

    return XkbDDXNamesFromRules(dev, rmlvo->rules, &mlvo, kccgst);
}

/**
 * Compile the given RMLVO keymap and return it. Returns the XkbDescPtr on
 * success or NULL on failure. If the components compiled are not a superset
 * or equal to need, the compiliation is treated as failure.
 */
static XkbDescPtr
XkbCompileKeymapForDevice(DeviceIntPtr dev, XkbRMLVOSet *rmlvo, int need)
{
    XkbDescPtr xkb = NULL;
    unsigned int provided;
    XkbComponentNamesRec kccgst = {0};
    char name[PATH_MAX];

    if (XkbRMLVOtoKcCGST(dev, rmlvo, &kccgst)) {
        provided = XkbDDXLoadKeymapByNames(dev, &kccgst, XkmAllIndicesMask, need,
                                           &xkb, name, PATH_MAX);
        if ((need & provided) != need) {
            if (xkb) {
                XkbFreeKeyboard(xkb, 0, TRUE);
                xkb = NULL;
            }
        }
    }

    XkbFreeComponentNames(&kccgst, FALSE);
    return xkb;
}

XkbDescPtr
XkbCompileKeymap(DeviceIntPtr dev, XkbRMLVOSet *rmlvo)
{
    XkbDescPtr xkb;
    unsigned int need;

    if (!dev || !rmlvo) {
        LogMessage(X_ERROR, "XKB: No device or RMLVO specified\n");
        return NULL;
    }

    /* These are the components we really really need */
    need = XkmSymbolsMask | XkmCompatMapMask | XkmTypesMask |
           XkmKeyNamesMask | XkmVirtualModsMask;


    xkb = XkbCompileKeymapForDevice(dev, rmlvo, need);

    if (!xkb) {
        XkbRMLVOSet dflts;

        /* we didn't get what we really needed. And that will likely leave
         * us with a keyboard that doesn't work. Use the defaults instead */
        LogMessage(X_ERROR, "XKB: Failed to load keymap. Loading default "
                   "keymap instead.\n");

        XkbGetRulesDflts(&dflts);

        xkb = XkbCompileKeymapForDevice(dev, &dflts, 0);

        XkbFreeRMLVOSet(&dflts, FALSE);
    }

    return xkb;
}