Commit | Line | Data |
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f3a0bf5c | 1 | /* Deal with the X Resource Manager. |
3a22ee35 | 2 | Copyright (C) 1990, 1993, 1994 Free Software Foundation. |
f3a0bf5c JB |
3 | |
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
d4327fec | 6 | the Free Software Foundation; either version 2, or (at your option) |
f3a0bf5c JB |
7 | any later version. |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; see the file COPYING. If not, write to | |
16 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
17 | ||
18 | /* Written by jla, 4/90 */ | |
19 | ||
a2a4d43e | 20 | #ifdef emacs |
18160b98 | 21 | #include <config.h> |
a2a4d43e JB |
22 | #endif |
23 | ||
837255fb JB |
24 | #include <stdio.h> |
25 | ||
a2a4d43e JB |
26 | #if 1 /* I'd really appreciate it if this code could go away... -JimB */ |
27 | /* this avoids lossage in the `dual-universe' headers on AT&T SysV X11 */ | |
28 | #ifdef USG5 | |
29 | #define SYSV | |
30 | #include <unistd.h> | |
31 | #endif /* USG5 */ | |
32 | ||
33 | #endif /* 1 */ | |
54c908b5 JB |
34 | |
35 | /* This should be included before the X include files; otherwise, we get | |
36 | warnings about redefining NULL under BSD 4.3. */ | |
37 | #include <sys/param.h> | |
38 | ||
f3a0bf5c JB |
39 | #include <X11/Xlib.h> |
40 | #include <X11/Xatom.h> | |
dfc35f5f | 41 | #if 0 |
f3a0bf5c | 42 | #include <X11/Xos.h> |
dfc35f5f | 43 | #endif |
f3a0bf5c JB |
44 | #include <X11/X.h> |
45 | #include <X11/Xutil.h> | |
46 | #include <X11/Xresource.h> | |
531ff254 JB |
47 | #ifdef VMS |
48 | #include "vms-pwd.h" | |
49 | #else | |
f3a0bf5c | 50 | #include <pwd.h> |
531ff254 | 51 | #endif |
f3a0bf5c JB |
52 | #include <sys/stat.h> |
53 | ||
a2a4d43e JB |
54 | #ifndef MAXPATHLEN |
55 | #define MAXPATHLEN 256 | |
f3a0bf5c JB |
56 | #endif |
57 | ||
0f2cd61f RS |
58 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
59 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
60 | #endif | |
61 | ||
f3a0bf5c | 62 | extern char *getenv (); |
3d5d61ae JB |
63 | |
64 | /* This does cause trouble on AIX. I'm going to take the comment at | |
65 | face value. */ | |
66 | #if 0 | |
dfc35f5f JB |
67 | extern short getuid (); /* If this causes portability problems, |
68 | I think we should just delete it; it'll | |
69 | default to `int' anyway. */ | |
3d5d61ae JB |
70 | #endif |
71 | ||
73fc0935 | 72 | #if defined (__bsdi__) || defined (DECLARE_GETPWUID_WITH_UID_T) |
3e0be4d0 RS |
73 | extern struct passwd *getpwuid (uid_t); |
74 | extern struct passwd *getpwnam (const char *); | |
75 | #else | |
f3a0bf5c JB |
76 | extern struct passwd *getpwuid (); |
77 | extern struct passwd *getpwnam (); | |
3e0be4d0 | 78 | #endif |
f3a0bf5c | 79 | |
e29ad342 KH |
80 | extern char *get_system_name (); |
81 | ||
837255fb JB |
82 | /* Make sure not to #include anything after these definitions. Let's |
83 | not step on anyone's prototypes. */ | |
84 | #ifdef emacs | |
85 | #define malloc xmalloc | |
86 | #define realloc xrealloc | |
87 | #define free xfree | |
88 | #endif | |
89 | ||
90 | char *x_get_string_resource (); | |
91 | static int file_p (); | |
92 | ||
93 | \f | |
94 | /* X file search path processing. */ | |
95 | ||
96 | ||
97 | /* The string which gets substituted for the %C escape in XFILESEARCHPATH | |
98 | and friends, or zero if none was specified. */ | |
99 | char *x_customization_string; | |
100 | ||
101 | ||
102 | /* Return the value of the emacs.customization (Emacs.Customization) | |
103 | resource, for later use in search path decoding. If we find no | |
104 | such resource, return zero. */ | |
105 | char * | |
106 | x_get_customization_string (db, name, class) | |
107 | XrmDatabase db; | |
108 | char *name, *class; | |
109 | { | |
110 | char *full_name | |
111 | = (char *) alloca (strlen (name) + sizeof ("customization") + 3); | |
112 | char *full_class | |
113 | = (char *) alloca (strlen (class) + sizeof ("Customization") + 3); | |
114 | char *result; | |
115 | ||
116 | sprintf (full_name, "%s.%s", name, "customization"); | |
117 | sprintf (full_class, "%s.%s", class, "Customization"); | |
118 | ||
119 | result = x_get_string_resource (db, full_name, full_class); | |
120 | ||
121 | if (result) | |
abfc2e5f RS |
122 | { |
123 | char *copy = (char *) malloc (strlen (result) + 1); | |
124 | strcpy (copy, result); | |
125 | return copy; | |
126 | } | |
837255fb JB |
127 | else |
128 | return 0; | |
129 | } | |
130 | ||
131 | ||
132 | /* Expand all the Xt-style %-escapes in STRING, whose length is given | |
133 | by STRING_LEN. Here are the escapes we're supposed to recognize: | |
134 | ||
135 | %N The value of the application's class name | |
136 | %T The value of the type parameter ("app-defaults" in this | |
137 | context) | |
138 | %S The value of the suffix parameter ("" in this context) | |
139 | %L The language string associated with the specified display | |
140 | (We use the "LANG" environment variable here, if it's set.) | |
141 | %l The language part of the display's language string | |
142 | (We treat this just like %L. If someone can tell us what | |
143 | we're really supposed to do, dandy.) | |
144 | %t The territory part of the display's language string | |
145 | (This never gets used.) | |
146 | %c The codeset part of the display's language string | |
147 | (This never gets used either.) | |
148 | %C The customization string retrieved from the resource | |
149 | database associated with display. | |
150 | (This is x_customization_string.) | |
151 | ||
152 | Return the expanded file name if it exists and is readable, and | |
153 | refers to %L only when the LANG environment variable is set, or | |
154 | otherwise provided by X. | |
155 | ||
156 | ESCAPED_SUFFIX and SUFFIX are postpended to STRING if they are | |
157 | non-zero. %-escapes in ESCAPED_SUFFIX are expanded; STRING is left | |
158 | alone. | |
159 | ||
160 | Return NULL otherwise. */ | |
161 | ||
162 | static char * | |
163 | magic_file_p (string, string_len, class, escaped_suffix, suffix) | |
164 | char *string; | |
165 | int string_len; | |
166 | char *class, *escaped_suffix, *suffix; | |
167 | { | |
168 | char *lang = getenv ("LANG"); | |
169 | ||
170 | int path_size = 100; | |
171 | char *path = (char *) malloc (path_size); | |
172 | int path_len = 0; | |
173 | ||
174 | char *p = string; | |
175 | ||
176 | while (p < string + string_len) | |
177 | { | |
178 | /* The chunk we're about to stick on the end of result. */ | |
179 | char *next; | |
180 | int next_len; | |
181 | ||
182 | if (*p == '%') | |
183 | { | |
184 | p++; | |
185 | ||
186 | if (p >= string + string_len) | |
187 | next_len = 0; | |
188 | else | |
189 | switch (*p) | |
190 | { | |
191 | case '%': | |
192 | next = "%"; | |
193 | next_len = 1; | |
194 | break; | |
195 | ||
196 | case 'C': | |
197 | next = (x_customization_string | |
198 | ? x_customization_string | |
199 | : ""); | |
200 | next_len = strlen (next); | |
201 | break; | |
202 | ||
203 | case 'N': | |
204 | next = class; | |
205 | next_len = strlen (class); | |
206 | break; | |
207 | ||
208 | case 'T': | |
209 | next = "app-defaults"; | |
210 | next_len = strlen (next); | |
211 | break; | |
212 | ||
213 | default: | |
214 | case 'S': | |
215 | next_len = 0; | |
216 | break; | |
217 | ||
218 | case 'L': | |
219 | case 'l': | |
220 | if (! lang) | |
221 | { | |
222 | free (path); | |
223 | return NULL; | |
224 | } | |
225 | ||
226 | next = lang; | |
227 | next_len = strlen (next); | |
228 | break; | |
229 | ||
230 | case 't': | |
231 | case 'c': | |
232 | free (path); | |
233 | return NULL; | |
234 | } | |
235 | } | |
236 | else | |
237 | next = p, next_len = 1; | |
238 | ||
239 | /* Do we have room for this component followed by a '\0' ? */ | |
240 | if (path_len + next_len + 1 > path_size) | |
241 | { | |
242 | path_size = (path_len + next_len + 1) * 2; | |
243 | path = (char *) realloc (path, path_size); | |
244 | } | |
245 | ||
246 | bcopy (next, path + path_len, next_len); | |
247 | path_len += next_len; | |
248 | ||
249 | p++; | |
250 | ||
251 | /* If we've reached the end of the string, append ESCAPED_SUFFIX. */ | |
252 | if (p >= string + string_len && escaped_suffix) | |
253 | { | |
254 | string = escaped_suffix; | |
255 | string_len = strlen (string); | |
256 | p = string; | |
257 | escaped_suffix = NULL; | |
258 | } | |
259 | } | |
260 | ||
261 | /* Perhaps we should add the SUFFIX now. */ | |
262 | if (suffix) | |
263 | { | |
264 | int suffix_len = strlen (suffix); | |
265 | ||
266 | if (path_len + suffix_len + 1 > path_size) | |
267 | { | |
268 | path_size = (path_len + suffix_len + 1); | |
269 | path = (char *) realloc (path, path_size); | |
270 | } | |
271 | ||
272 | bcopy (suffix, path + path_len, suffix_len); | |
273 | path_len += suffix_len; | |
274 | } | |
275 | ||
276 | path[path_len] = '\0'; | |
277 | ||
278 | if (! file_p (path)) | |
279 | { | |
280 | free (path); | |
281 | return NULL; | |
282 | } | |
283 | ||
284 | return path; | |
285 | } | |
286 | ||
287 | ||
f3a0bf5c | 288 | static char * |
837255fb | 289 | gethomedir () |
f3a0bf5c | 290 | { |
f3a0bf5c JB |
291 | struct passwd *pw; |
292 | char *ptr; | |
837255fb | 293 | char *copy; |
f3a0bf5c JB |
294 | |
295 | if ((ptr = getenv ("HOME")) == NULL) | |
296 | { | |
1cac1f6f KH |
297 | if ((ptr = getenv ("LOGNAME")) != NULL |
298 | || (ptr = getenv ("USER")) != NULL) | |
f3a0bf5c JB |
299 | pw = getpwnam (ptr); |
300 | else | |
1cac1f6f | 301 | pw = getpwuid (getuid ()); |
837255fb | 302 | |
f3a0bf5c JB |
303 | if (pw) |
304 | ptr = pw->pw_dir; | |
f3a0bf5c JB |
305 | } |
306 | ||
837255fb JB |
307 | if (ptr == NULL) |
308 | return "/"; | |
f3a0bf5c | 309 | |
837255fb JB |
310 | copy = (char *) malloc (strlen (ptr) + 2); |
311 | strcpy (copy, ptr); | |
312 | strcat (copy, "/"); | |
f3a0bf5c | 313 | |
837255fb | 314 | return copy; |
f3a0bf5c JB |
315 | } |
316 | ||
837255fb | 317 | |
f3a0bf5c JB |
318 | static int |
319 | file_p (path) | |
320 | char *path; | |
321 | { | |
322 | struct stat status; | |
323 | ||
dfc35f5f | 324 | return (access (path, 4) == 0 /* exists and is readable */ |
f3a0bf5c | 325 | && stat (path, &status) == 0 /* get the status */ |
0f2cd61f | 326 | && (S_ISDIR (status.st_mode)) == 0); /* not a directory */ |
f3a0bf5c JB |
327 | } |
328 | ||
f3a0bf5c | 329 | |
837255fb JB |
330 | /* Find the first element of SEARCH_PATH which exists and is readable, |
331 | after expanding the %-escapes. Return 0 if we didn't find any, and | |
332 | the path name of the one we found otherwise. */ | |
f3a0bf5c | 333 | |
837255fb JB |
334 | static char * |
335 | search_magic_path (search_path, class, escaped_suffix, suffix) | |
336 | char *search_path, *class, *escaped_suffix, *suffix; | |
f3a0bf5c | 337 | { |
837255fb | 338 | register char *s, *p; |
d4327fec | 339 | |
837255fb | 340 | for (s = search_path; *s; s = p) |
f3a0bf5c | 341 | { |
837255fb JB |
342 | for (p = s; *p && *p != ':'; p++) |
343 | ; | |
344 | ||
0f2cd61f | 345 | if (p > s) |
f3a0bf5c | 346 | { |
0f2cd61f | 347 | char *path = magic_file_p (s, p - s, class, escaped_suffix, suffix); |
837255fb JB |
348 | if (path) |
349 | return path; | |
f3a0bf5c | 350 | } |
0f2cd61f | 351 | else if (*p == ':') |
f3a0bf5c | 352 | { |
0f2cd61f RS |
353 | char *path; |
354 | ||
355 | s = "%N%S"; | |
356 | path = magic_file_p (s, strlen (s), class, escaped_suffix, suffix); | |
837255fb JB |
357 | if (path) |
358 | return path; | |
f3a0bf5c JB |
359 | } |
360 | ||
837255fb JB |
361 | if (*p == ':') |
362 | p++; | |
f3a0bf5c JB |
363 | } |
364 | ||
365 | return 0; | |
366 | } | |
367 | \f | |
837255fb JB |
368 | /* Producing databases for individual sources. */ |
369 | ||
370 | #define X_DEFAULT_SEARCH_PATH "/usr/lib/X11/%L/%T/%N%C%S:/usr/lib/X11/%l/%T/%N%C%S:/usr/lib/X11/%T/%N%C%S:/usr/lib/X11/%L/%T/%N%S:/usr/lib/X11/%l/%T/%N%S:/usr/lib/X11/%T/%N%S" | |
371 | ||
f3a0bf5c JB |
372 | static XrmDatabase |
373 | get_system_app (class) | |
374 | char *class; | |
375 | { | |
837255fb JB |
376 | XrmDatabase db = NULL; |
377 | char *path; | |
f3a0bf5c | 378 | |
837255fb JB |
379 | path = getenv ("XFILESEARCHPATH"); |
380 | if (! path) path = X_DEFAULT_SEARCH_PATH; | |
f3a0bf5c | 381 | |
837255fb JB |
382 | path = search_magic_path (path, class, 0, 0); |
383 | if (path) | |
384 | { | |
385 | db = XrmGetFileDatabase (path); | |
386 | free (path); | |
387 | } | |
f3a0bf5c | 388 | |
f3a0bf5c JB |
389 | return db; |
390 | } | |
391 | ||
837255fb | 392 | |
f3a0bf5c JB |
393 | static XrmDatabase |
394 | get_fallback (display) | |
395 | Display *display; | |
396 | { | |
397 | XrmDatabase db; | |
398 | ||
399 | return NULL; | |
400 | } | |
401 | ||
837255fb | 402 | |
f3a0bf5c JB |
403 | static XrmDatabase |
404 | get_user_app (class) | |
405 | char *class; | |
406 | { | |
837255fb JB |
407 | char *path; |
408 | char *file = 0; | |
409 | ||
410 | /* Check for XUSERFILESEARCHPATH. It is a path of complete file | |
411 | names, not directories. */ | |
412 | if (((path = getenv ("XUSERFILESEARCHPATH")) | |
413 | && (file = search_magic_path (path, class, 0, 0))) | |
414 | ||
415 | /* Check for APPLRESDIR; it is a path of directories. In each, | |
416 | we have to search for LANG/CLASS and then CLASS. */ | |
417 | || ((path = getenv ("XAPPLRESDIR")) | |
418 | && ((file = search_magic_path (path, class, "/%L/%N", 0)) | |
419 | || (file = search_magic_path (path, class, "/%N", 0)))) | |
420 | ||
421 | /* Check in the home directory. This is a bit of a hack; let's | |
422 | hope one's home directory doesn't contain any %-escapes. */ | |
423 | || (path = gethomedir (), | |
424 | ((file = search_magic_path (path, class, "%L/%N", 0)) | |
425 | || (file = search_magic_path (path, class, "%N", 0))))) | |
f3a0bf5c | 426 | { |
837255fb JB |
427 | XrmDatabase db = XrmGetFileDatabase (file); |
428 | free (file); | |
429 | return db; | |
f3a0bf5c | 430 | } |
837255fb | 431 | else |
f3a0bf5c | 432 | return NULL; |
f3a0bf5c JB |
433 | } |
434 | ||
837255fb | 435 | |
f3a0bf5c JB |
436 | static XrmDatabase |
437 | get_user_db (display) | |
438 | Display *display; | |
439 | { | |
440 | XrmDatabase db; | |
441 | char *xdefs; | |
442 | ||
2c8d1900 | 443 | #ifdef PBaseSize /* Cheap way to test for X11R4 or later. */ |
b631f177 JB |
444 | xdefs = XResourceManagerString (display); |
445 | #else | |
a2a4d43e | 446 | xdefs = display->xdefaults; |
b631f177 JB |
447 | #endif |
448 | ||
f3a0bf5c JB |
449 | if (xdefs != NULL) |
450 | db = XrmGetStringDatabase (xdefs); | |
451 | else | |
452 | { | |
837255fb JB |
453 | char *home; |
454 | char *xdefault; | |
f3a0bf5c | 455 | |
837255fb JB |
456 | home = gethomedir (); |
457 | xdefault = (char *) malloc (strlen (home) + sizeof (".Xdefaults")); | |
458 | strcpy (xdefault, home); | |
f3a0bf5c JB |
459 | strcat (xdefault, ".Xdefaults"); |
460 | db = XrmGetFileDatabase (xdefault); | |
837255fb JB |
461 | free (home); |
462 | free (xdefault); | |
f3a0bf5c JB |
463 | } |
464 | ||
d8717d15 | 465 | #ifdef HAVE_XSCREENRESOURCESTRING |
9b37b1c2 JB |
466 | /* Get the screen-specific resources too. */ |
467 | xdefs = XScreenResourceString (DefaultScreenOfDisplay (display)); | |
468 | if (xdefs != NULL) | |
fdce0b39 JB |
469 | { |
470 | XrmMergeDatabases (XrmGetStringDatabase (xdefs), &db); | |
471 | XFree (xdefs); | |
472 | } | |
9b37b1c2 JB |
473 | #endif |
474 | ||
f3a0bf5c JB |
475 | return db; |
476 | } | |
477 | ||
478 | static XrmDatabase | |
479 | get_environ_db () | |
480 | { | |
481 | XrmDatabase db; | |
482 | char *p; | |
e29ad342 | 483 | char *path = 0, *home = 0, *host; |
f3a0bf5c JB |
484 | |
485 | if ((p = getenv ("XENVIRONMENT")) == NULL) | |
486 | { | |
837255fb | 487 | home = gethomedir (); |
e29ad342 | 488 | host = get_system_name (); |
837255fb JB |
489 | path = (char *) malloc (strlen (home) |
490 | + sizeof (".Xdefaults-") | |
491 | + strlen (host)); | |
492 | sprintf (path, "%s%s%s", home, ".Xdefaults-", host); | |
f3a0bf5c JB |
493 | p = path; |
494 | } | |
495 | ||
496 | db = XrmGetFileDatabase (p); | |
837255fb JB |
497 | |
498 | if (path) free (path); | |
499 | if (home) free (home); | |
837255fb | 500 | |
f3a0bf5c JB |
501 | return db; |
502 | } | |
503 | \f | |
837255fb JB |
504 | /* External interface. */ |
505 | ||
f3a0bf5c JB |
506 | /* Types of values that we can find in a database */ |
507 | ||
508 | #define XrmStringType "String" /* String representation */ | |
509 | XrmRepresentation x_rm_string; /* Quark representation */ | |
510 | ||
511 | /* Load X resources based on the display and a possible -xrm option. */ | |
512 | ||
513 | XrmDatabase | |
837255fb | 514 | x_load_resources (display, xrm_string, myname, myclass) |
f3a0bf5c | 515 | Display *display; |
837255fb | 516 | char *xrm_string, *myname, *myclass; |
f3a0bf5c JB |
517 | { |
518 | char *xdefs; | |
837255fb | 519 | XrmDatabase user_database; |
f3a0bf5c JB |
520 | XrmDatabase rdb; |
521 | XrmDatabase db; | |
522 | ||
523 | x_rm_string = XrmStringToQuark (XrmStringType); | |
524 | XrmInitialize (); | |
525 | rdb = XrmGetStringDatabase (""); | |
526 | ||
837255fb JB |
527 | user_database = get_user_db (display); |
528 | ||
529 | /* Figure out what the "customization string" is, so we can use it | |
530 | to decode paths. */ | |
531 | if (x_customization_string) | |
532 | free (x_customization_string); | |
533 | x_customization_string | |
534 | = x_get_customization_string (user_database, myname, myclass); | |
535 | ||
f3a0bf5c JB |
536 | /* Get application system defaults */ |
537 | db = get_system_app (myclass); | |
538 | if (db != NULL) | |
539 | XrmMergeDatabases (db, &rdb); | |
540 | ||
541 | /* Get Fallback resources */ | |
542 | db = get_fallback (display); | |
543 | if (db != NULL) | |
544 | XrmMergeDatabases (db, &rdb); | |
545 | ||
546 | /* Get application user defaults */ | |
547 | db = get_user_app (myclass); | |
548 | if (db != NULL) | |
549 | XrmMergeDatabases (db, &rdb); | |
550 | ||
551 | /* get User defaults */ | |
837255fb JB |
552 | if (user_database != NULL) |
553 | XrmMergeDatabases (user_database, &rdb); | |
f3a0bf5c JB |
554 | |
555 | /* Get Environment defaults. */ | |
556 | db = get_environ_db (); | |
557 | if (db != NULL) | |
558 | XrmMergeDatabases (db, &rdb); | |
559 | ||
560 | /* Last, merge in any specification from the command line. */ | |
561 | if (xrm_string != NULL) | |
562 | { | |
563 | db = XrmGetStringDatabase (xrm_string); | |
564 | if (db != NULL) | |
565 | XrmMergeDatabases (db, &rdb); | |
566 | } | |
567 | ||
568 | return rdb; | |
569 | } | |
570 | ||
837255fb | 571 | |
f3a0bf5c JB |
572 | /* Retrieve the value of the resource specified by NAME with class CLASS |
573 | and of type TYPE from database RDB. The value is returned in RET_VALUE. */ | |
574 | ||
575 | int | |
576 | x_get_resource (rdb, name, class, expected_type, ret_value) | |
577 | XrmDatabase rdb; | |
578 | char *name, *class; | |
579 | XrmRepresentation expected_type; | |
580 | XrmValue *ret_value; | |
581 | { | |
582 | XrmValue value; | |
583 | XrmName namelist[100]; | |
584 | XrmClass classlist[100]; | |
585 | XrmRepresentation type; | |
586 | ||
587 | XrmStringToNameList(name, namelist); | |
588 | XrmStringToClassList(class, classlist); | |
589 | ||
590 | if (XrmQGetResource (rdb, namelist, classlist, &type, &value) == True | |
591 | && (type == expected_type)) | |
592 | { | |
593 | if (type == x_rm_string) | |
41ab0754 | 594 | ret_value->addr = (char *) value.addr; |
f3a0bf5c JB |
595 | else |
596 | bcopy (value.addr, ret_value->addr, ret_value->size); | |
597 | ||
598 | return value.size; | |
599 | } | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | /* Retrieve the string resource specified by NAME with CLASS from | |
605 | database RDB. */ | |
606 | ||
607 | char * | |
608 | x_get_string_resource (rdb, name, class) | |
609 | XrmDatabase rdb; | |
610 | char *name, *class; | |
611 | { | |
612 | XrmValue value; | |
613 | ||
614 | if (x_get_resource (rdb, name, class, x_rm_string, &value)) | |
615 | return (char *) value.addr; | |
616 | ||
617 | return (char *) 0; | |
618 | } | |
619 | \f | |
837255fb JB |
620 | /* Stand-alone test facilities. */ |
621 | ||
f3a0bf5c | 622 | #ifdef TESTRM |
837255fb JB |
623 | |
624 | typedef char **List; | |
625 | #define arg_listify(len, list) (list) | |
626 | #define car(list) (*(list)) | |
627 | #define cdr(list) (list + 1) | |
628 | #define NIL(list) (! *(list)) | |
629 | #define free_arglist(list) | |
630 | ||
631 | static List | |
632 | member (elt, list) | |
633 | char *elt; | |
634 | List list; | |
635 | { | |
636 | List p; | |
637 | ||
638 | for (p = list; ! NIL (p); p = cdr (p)) | |
639 | if (! strcmp (elt, car (p))) | |
640 | return p; | |
641 | ||
642 | return p; | |
643 | } | |
f3a0bf5c JB |
644 | |
645 | static void | |
646 | fatal (msg, prog, x1, x2, x3, x4, x5) | |
647 | char *msg, *prog; | |
648 | int x1, x2, x3, x4, x5; | |
649 | { | |
650 | extern int errno; | |
651 | ||
652 | if (errno) | |
653 | perror (prog); | |
654 | ||
655 | (void) fprintf (stderr, msg, prog, x1, x2, x3, x4, x5); | |
656 | exit (1); | |
657 | } | |
658 | ||
659 | main (argc, argv) | |
660 | int argc; | |
661 | char **argv; | |
662 | { | |
663 | Display *display; | |
837255fb | 664 | char *displayname, *resource_string, *class, *name; |
f3a0bf5c | 665 | XrmDatabase xdb; |
837255fb | 666 | List arg_list, lp; |
f3a0bf5c JB |
667 | |
668 | arg_list = arg_listify (argc, argv); | |
669 | ||
670 | lp = member ("-d", arg_list); | |
671 | if (!NIL (lp)) | |
672 | displayname = car (cdr (lp)); | |
673 | else | |
674 | displayname = "localhost:0.0"; | |
675 | ||
676 | lp = member ("-xrm", arg_list); | |
677 | if (! NIL (lp)) | |
678 | resource_string = car (cdr (lp)); | |
679 | else | |
680 | resource_string = (char *) 0; | |
681 | ||
682 | lp = member ("-c", arg_list); | |
683 | if (! NIL (lp)) | |
684 | class = car (cdr (lp)); | |
685 | else | |
686 | class = "Emacs"; | |
687 | ||
837255fb JB |
688 | lp = member ("-n", arg_list); |
689 | if (! NIL (lp)) | |
690 | name = car (cdr (lp)); | |
691 | else | |
692 | name = "emacs"; | |
f3a0bf5c | 693 | |
837255fb | 694 | free_arglist (arg_list); |
f3a0bf5c JB |
695 | |
696 | if (!(display = XOpenDisplay (displayname))) | |
697 | fatal ("Can't open display '%s'\n", XDisplayName (displayname)); | |
698 | ||
837255fb | 699 | xdb = x_load_resources (display, resource_string, name, class); |
f3a0bf5c | 700 | |
f3a0bf5c JB |
701 | /* In a real program, you'd want to also do this: */ |
702 | display->db = xdb; | |
f3a0bf5c JB |
703 | |
704 | while (1) | |
705 | { | |
837255fb JB |
706 | char query_name[90]; |
707 | char query_class[90]; | |
708 | ||
709 | printf ("Name: "); | |
710 | gets (query_name); | |
f3a0bf5c | 711 | |
837255fb | 712 | if (strlen (query_name)) |
f3a0bf5c | 713 | { |
837255fb JB |
714 | char *value; |
715 | ||
716 | printf ("Class: "); | |
717 | gets (query_class); | |
718 | ||
719 | value = x_get_string_resource (xdb, query_name, query_class); | |
f3a0bf5c JB |
720 | |
721 | if (value != NULL) | |
837255fb | 722 | printf ("\t%s(%s): %s\n\n", query_name, query_class, value); |
f3a0bf5c JB |
723 | else |
724 | printf ("\tNo Value.\n\n"); | |
725 | } | |
726 | else | |
727 | break; | |
728 | } | |
729 | printf ("\tExit.\n\n"); | |
730 | ||
731 | XCloseDisplay (display); | |
732 | } | |
733 | #endif /* TESTRM */ |