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 | 3 | |
3b7ad313 EN |
4 | This file is part of GNU Emacs. |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
f3a0bf5c | 7 | it under the terms of the GNU General Public License as published by |
d4327fec | 8 | the Free Software Foundation; either version 2, or (at your option) |
f3a0bf5c JB |
9 | any later version. |
10 | ||
3b7ad313 | 11 | GNU Emacs is distributed in the hope that it will be useful, |
f3a0bf5c JB |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
3b7ad313 EN |
17 | along with GNU Emacs; see the file COPYING. If not, write to |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
f3a0bf5c JB |
20 | |
21 | /* Written by jla, 4/90 */ | |
22 | ||
a2a4d43e | 23 | #ifdef emacs |
18160b98 | 24 | #include <config.h> |
a2a4d43e JB |
25 | #endif |
26 | ||
dfcf069d AS |
27 | #ifdef HAVE_UNISTD_H |
28 | #include <unistd.h> | |
29 | #endif | |
30 | ||
012c3e71 RS |
31 | #include <paths.h> |
32 | ||
837255fb JB |
33 | #include <stdio.h> |
34 | ||
a2a4d43e JB |
35 | #if 1 /* I'd really appreciate it if this code could go away... -JimB */ |
36 | /* this avoids lossage in the `dual-universe' headers on AT&T SysV X11 */ | |
37 | #ifdef USG5 | |
8f510a71 | 38 | #ifndef SYSV |
a2a4d43e | 39 | #define SYSV |
8f510a71 | 40 | #endif |
a2a4d43e JB |
41 | #include <unistd.h> |
42 | #endif /* USG5 */ | |
43 | ||
44 | #endif /* 1 */ | |
54c908b5 | 45 | |
f3a0bf5c JB |
46 | #include <X11/Xlib.h> |
47 | #include <X11/Xatom.h> | |
dfc35f5f | 48 | #if 0 |
f3a0bf5c | 49 | #include <X11/Xos.h> |
dfc35f5f | 50 | #endif |
f3a0bf5c JB |
51 | #include <X11/X.h> |
52 | #include <X11/Xutil.h> | |
53 | #include <X11/Xresource.h> | |
531ff254 JB |
54 | #ifdef VMS |
55 | #include "vms-pwd.h" | |
56 | #else | |
f3a0bf5c | 57 | #include <pwd.h> |
531ff254 | 58 | #endif |
f3a0bf5c JB |
59 | #include <sys/stat.h> |
60 | ||
0f2cd61f RS |
61 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
62 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
63 | #endif | |
64 | ||
f3a0bf5c | 65 | extern char *getenv (); |
3d5d61ae JB |
66 | |
67 | /* This does cause trouble on AIX. I'm going to take the comment at | |
68 | face value. */ | |
69 | #if 0 | |
dfc35f5f JB |
70 | extern short getuid (); /* If this causes portability problems, |
71 | I think we should just delete it; it'll | |
72 | default to `int' anyway. */ | |
3d5d61ae JB |
73 | #endif |
74 | ||
2d487ae5 | 75 | #ifdef DECLARE_GETPWUID_WITH_UID_T |
3e0be4d0 RS |
76 | extern struct passwd *getpwuid (uid_t); |
77 | extern struct passwd *getpwnam (const char *); | |
78 | #else | |
f3a0bf5c JB |
79 | extern struct passwd *getpwuid (); |
80 | extern struct passwd *getpwnam (); | |
3e0be4d0 | 81 | #endif |
f3a0bf5c | 82 | |
e29ad342 KH |
83 | extern char *get_system_name (); |
84 | ||
837255fb JB |
85 | /* Make sure not to #include anything after these definitions. Let's |
86 | not step on anyone's prototypes. */ | |
87 | #ifdef emacs | |
88 | #define malloc xmalloc | |
89 | #define realloc xrealloc | |
90 | #define free xfree | |
dfcf069d | 91 | extern long *xmalloc (), *xrealloc (); |
837255fb JB |
92 | #endif |
93 | ||
94 | char *x_get_string_resource (); | |
95 | static int file_p (); | |
96 | ||
97 | \f | |
98 | /* X file search path processing. */ | |
99 | ||
100 | ||
101 | /* The string which gets substituted for the %C escape in XFILESEARCHPATH | |
102 | and friends, or zero if none was specified. */ | |
103 | char *x_customization_string; | |
104 | ||
105 | ||
106 | /* Return the value of the emacs.customization (Emacs.Customization) | |
107 | resource, for later use in search path decoding. If we find no | |
108 | such resource, return zero. */ | |
109 | char * | |
110 | x_get_customization_string (db, name, class) | |
111 | XrmDatabase db; | |
112 | char *name, *class; | |
113 | { | |
114 | char *full_name | |
115 | = (char *) alloca (strlen (name) + sizeof ("customization") + 3); | |
116 | char *full_class | |
117 | = (char *) alloca (strlen (class) + sizeof ("Customization") + 3); | |
118 | char *result; | |
119 | ||
120 | sprintf (full_name, "%s.%s", name, "customization"); | |
121 | sprintf (full_class, "%s.%s", class, "Customization"); | |
122 | ||
123 | result = x_get_string_resource (db, full_name, full_class); | |
124 | ||
125 | if (result) | |
abfc2e5f RS |
126 | { |
127 | char *copy = (char *) malloc (strlen (result) + 1); | |
128 | strcpy (copy, result); | |
129 | return copy; | |
130 | } | |
837255fb JB |
131 | else |
132 | return 0; | |
133 | } | |
134 | ||
135 | ||
136 | /* Expand all the Xt-style %-escapes in STRING, whose length is given | |
137 | by STRING_LEN. Here are the escapes we're supposed to recognize: | |
138 | ||
139 | %N The value of the application's class name | |
140 | %T The value of the type parameter ("app-defaults" in this | |
141 | context) | |
142 | %S The value of the suffix parameter ("" in this context) | |
143 | %L The language string associated with the specified display | |
144 | (We use the "LANG" environment variable here, if it's set.) | |
145 | %l The language part of the display's language string | |
146 | (We treat this just like %L. If someone can tell us what | |
147 | we're really supposed to do, dandy.) | |
148 | %t The territory part of the display's language string | |
149 | (This never gets used.) | |
150 | %c The codeset part of the display's language string | |
151 | (This never gets used either.) | |
152 | %C The customization string retrieved from the resource | |
153 | database associated with display. | |
154 | (This is x_customization_string.) | |
155 | ||
156 | Return the expanded file name if it exists and is readable, and | |
157 | refers to %L only when the LANG environment variable is set, or | |
158 | otherwise provided by X. | |
159 | ||
160 | ESCAPED_SUFFIX and SUFFIX are postpended to STRING if they are | |
161 | non-zero. %-escapes in ESCAPED_SUFFIX are expanded; STRING is left | |
162 | alone. | |
163 | ||
164 | Return NULL otherwise. */ | |
165 | ||
166 | static char * | |
167 | magic_file_p (string, string_len, class, escaped_suffix, suffix) | |
168 | char *string; | |
169 | int string_len; | |
170 | char *class, *escaped_suffix, *suffix; | |
171 | { | |
172 | char *lang = getenv ("LANG"); | |
173 | ||
174 | int path_size = 100; | |
175 | char *path = (char *) malloc (path_size); | |
176 | int path_len = 0; | |
177 | ||
178 | char *p = string; | |
179 | ||
180 | while (p < string + string_len) | |
181 | { | |
182 | /* The chunk we're about to stick on the end of result. */ | |
183 | char *next; | |
184 | int next_len; | |
185 | ||
186 | if (*p == '%') | |
187 | { | |
188 | p++; | |
189 | ||
190 | if (p >= string + string_len) | |
191 | next_len = 0; | |
192 | else | |
193 | switch (*p) | |
194 | { | |
195 | case '%': | |
196 | next = "%"; | |
197 | next_len = 1; | |
198 | break; | |
199 | ||
200 | case 'C': | |
201 | next = (x_customization_string | |
202 | ? x_customization_string | |
203 | : ""); | |
204 | next_len = strlen (next); | |
205 | break; | |
206 | ||
207 | case 'N': | |
208 | next = class; | |
209 | next_len = strlen (class); | |
210 | break; | |
211 | ||
212 | case 'T': | |
213 | next = "app-defaults"; | |
214 | next_len = strlen (next); | |
215 | break; | |
216 | ||
217 | default: | |
218 | case 'S': | |
219 | next_len = 0; | |
220 | break; | |
221 | ||
222 | case 'L': | |
223 | case 'l': | |
224 | if (! lang) | |
225 | { | |
226 | free (path); | |
227 | return NULL; | |
228 | } | |
229 | ||
230 | next = lang; | |
231 | next_len = strlen (next); | |
232 | break; | |
233 | ||
234 | case 't': | |
235 | case 'c': | |
236 | free (path); | |
237 | return NULL; | |
238 | } | |
239 | } | |
240 | else | |
241 | next = p, next_len = 1; | |
242 | ||
243 | /* Do we have room for this component followed by a '\0' ? */ | |
244 | if (path_len + next_len + 1 > path_size) | |
245 | { | |
246 | path_size = (path_len + next_len + 1) * 2; | |
247 | path = (char *) realloc (path, path_size); | |
248 | } | |
249 | ||
250 | bcopy (next, path + path_len, next_len); | |
251 | path_len += next_len; | |
252 | ||
253 | p++; | |
254 | ||
255 | /* If we've reached the end of the string, append ESCAPED_SUFFIX. */ | |
256 | if (p >= string + string_len && escaped_suffix) | |
257 | { | |
258 | string = escaped_suffix; | |
259 | string_len = strlen (string); | |
260 | p = string; | |
261 | escaped_suffix = NULL; | |
262 | } | |
263 | } | |
264 | ||
265 | /* Perhaps we should add the SUFFIX now. */ | |
266 | if (suffix) | |
267 | { | |
268 | int suffix_len = strlen (suffix); | |
269 | ||
270 | if (path_len + suffix_len + 1 > path_size) | |
271 | { | |
272 | path_size = (path_len + suffix_len + 1); | |
273 | path = (char *) realloc (path, path_size); | |
274 | } | |
275 | ||
276 | bcopy (suffix, path + path_len, suffix_len); | |
277 | path_len += suffix_len; | |
278 | } | |
279 | ||
280 | path[path_len] = '\0'; | |
281 | ||
282 | if (! file_p (path)) | |
283 | { | |
284 | free (path); | |
285 | return NULL; | |
286 | } | |
287 | ||
288 | return path; | |
289 | } | |
290 | ||
291 | ||
f3a0bf5c | 292 | static char * |
837255fb | 293 | gethomedir () |
f3a0bf5c | 294 | { |
f3a0bf5c JB |
295 | struct passwd *pw; |
296 | char *ptr; | |
837255fb | 297 | char *copy; |
f3a0bf5c JB |
298 | |
299 | if ((ptr = getenv ("HOME")) == NULL) | |
300 | { | |
1cac1f6f KH |
301 | if ((ptr = getenv ("LOGNAME")) != NULL |
302 | || (ptr = getenv ("USER")) != NULL) | |
f3a0bf5c JB |
303 | pw = getpwnam (ptr); |
304 | else | |
1cac1f6f | 305 | pw = getpwuid (getuid ()); |
837255fb | 306 | |
f3a0bf5c JB |
307 | if (pw) |
308 | ptr = pw->pw_dir; | |
f3a0bf5c JB |
309 | } |
310 | ||
837255fb JB |
311 | if (ptr == NULL) |
312 | return "/"; | |
f3a0bf5c | 313 | |
837255fb JB |
314 | copy = (char *) malloc (strlen (ptr) + 2); |
315 | strcpy (copy, ptr); | |
316 | strcat (copy, "/"); | |
f3a0bf5c | 317 | |
837255fb | 318 | return copy; |
f3a0bf5c JB |
319 | } |
320 | ||
837255fb | 321 | |
f3a0bf5c JB |
322 | static int |
323 | file_p (path) | |
324 | char *path; | |
325 | { | |
326 | struct stat status; | |
327 | ||
dfc35f5f | 328 | return (access (path, 4) == 0 /* exists and is readable */ |
f3a0bf5c | 329 | && stat (path, &status) == 0 /* get the status */ |
0f2cd61f | 330 | && (S_ISDIR (status.st_mode)) == 0); /* not a directory */ |
f3a0bf5c JB |
331 | } |
332 | ||
f3a0bf5c | 333 | |
837255fb JB |
334 | /* Find the first element of SEARCH_PATH which exists and is readable, |
335 | after expanding the %-escapes. Return 0 if we didn't find any, and | |
336 | the path name of the one we found otherwise. */ | |
f3a0bf5c | 337 | |
837255fb JB |
338 | static char * |
339 | search_magic_path (search_path, class, escaped_suffix, suffix) | |
340 | char *search_path, *class, *escaped_suffix, *suffix; | |
f3a0bf5c | 341 | { |
837255fb | 342 | register char *s, *p; |
d4327fec | 343 | |
837255fb | 344 | for (s = search_path; *s; s = p) |
f3a0bf5c | 345 | { |
837255fb JB |
346 | for (p = s; *p && *p != ':'; p++) |
347 | ; | |
348 | ||
0f2cd61f | 349 | if (p > s) |
f3a0bf5c | 350 | { |
0f2cd61f | 351 | char *path = magic_file_p (s, p - s, class, escaped_suffix, suffix); |
837255fb JB |
352 | if (path) |
353 | return path; | |
f3a0bf5c | 354 | } |
0f2cd61f | 355 | else if (*p == ':') |
f3a0bf5c | 356 | { |
0f2cd61f RS |
357 | char *path; |
358 | ||
359 | s = "%N%S"; | |
360 | path = magic_file_p (s, strlen (s), class, escaped_suffix, suffix); | |
837255fb JB |
361 | if (path) |
362 | return path; | |
f3a0bf5c JB |
363 | } |
364 | ||
837255fb JB |
365 | if (*p == ':') |
366 | p++; | |
f3a0bf5c JB |
367 | } |
368 | ||
369 | return 0; | |
370 | } | |
371 | \f | |
837255fb JB |
372 | /* Producing databases for individual sources. */ |
373 | ||
f3a0bf5c JB |
374 | static XrmDatabase |
375 | get_system_app (class) | |
376 | char *class; | |
377 | { | |
837255fb JB |
378 | XrmDatabase db = NULL; |
379 | char *path; | |
f3a0bf5c | 380 | |
837255fb | 381 | path = getenv ("XFILESEARCHPATH"); |
58c7da0c | 382 | if (! path) path = PATH_X_DEFAULTS; |
f3a0bf5c | 383 | |
837255fb JB |
384 | path = search_magic_path (path, class, 0, 0); |
385 | if (path) | |
386 | { | |
387 | db = XrmGetFileDatabase (path); | |
388 | free (path); | |
389 | } | |
f3a0bf5c | 390 | |
f3a0bf5c JB |
391 | return db; |
392 | } | |
393 | ||
837255fb | 394 | |
f3a0bf5c JB |
395 | static XrmDatabase |
396 | get_fallback (display) | |
397 | Display *display; | |
398 | { | |
399 | XrmDatabase db; | |
400 | ||
401 | return NULL; | |
402 | } | |
403 | ||
837255fb | 404 | |
f3a0bf5c JB |
405 | static XrmDatabase |
406 | get_user_app (class) | |
407 | char *class; | |
408 | { | |
837255fb JB |
409 | char *path; |
410 | char *file = 0; | |
3fa18fb2 | 411 | char *free_it = 0; |
837255fb JB |
412 | |
413 | /* Check for XUSERFILESEARCHPATH. It is a path of complete file | |
414 | names, not directories. */ | |
415 | if (((path = getenv ("XUSERFILESEARCHPATH")) | |
416 | && (file = search_magic_path (path, class, 0, 0))) | |
417 | ||
418 | /* Check for APPLRESDIR; it is a path of directories. In each, | |
419 | we have to search for LANG/CLASS and then CLASS. */ | |
420 | || ((path = getenv ("XAPPLRESDIR")) | |
421 | && ((file = search_magic_path (path, class, "/%L/%N", 0)) | |
422 | || (file = search_magic_path (path, class, "/%N", 0)))) | |
423 | ||
424 | /* Check in the home directory. This is a bit of a hack; let's | |
425 | hope one's home directory doesn't contain any %-escapes. */ | |
3fa18fb2 RS |
426 | || (free_it = gethomedir (), |
427 | ((file = search_magic_path (free_it, class, "%L/%N", 0)) | |
428 | || (file = search_magic_path (free_it, class, "%N", 0))))) | |
f3a0bf5c | 429 | { |
837255fb JB |
430 | XrmDatabase db = XrmGetFileDatabase (file); |
431 | free (file); | |
3fa18fb2 RS |
432 | if (free_it) |
433 | free (free_it); | |
837255fb | 434 | return db; |
f3a0bf5c | 435 | } |
3fa18fb2 RS |
436 | |
437 | if (free_it) | |
438 | free (free_it); | |
439 | return NULL; | |
f3a0bf5c JB |
440 | } |
441 | ||
837255fb | 442 | |
f3a0bf5c JB |
443 | static XrmDatabase |
444 | get_user_db (display) | |
445 | Display *display; | |
446 | { | |
447 | XrmDatabase db; | |
448 | char *xdefs; | |
449 | ||
2c8d1900 | 450 | #ifdef PBaseSize /* Cheap way to test for X11R4 or later. */ |
b631f177 JB |
451 | xdefs = XResourceManagerString (display); |
452 | #else | |
a2a4d43e | 453 | xdefs = display->xdefaults; |
b631f177 JB |
454 | #endif |
455 | ||
f3a0bf5c JB |
456 | if (xdefs != NULL) |
457 | db = XrmGetStringDatabase (xdefs); | |
458 | else | |
459 | { | |
837255fb JB |
460 | char *home; |
461 | char *xdefault; | |
f3a0bf5c | 462 | |
837255fb JB |
463 | home = gethomedir (); |
464 | xdefault = (char *) malloc (strlen (home) + sizeof (".Xdefaults")); | |
465 | strcpy (xdefault, home); | |
f3a0bf5c JB |
466 | strcat (xdefault, ".Xdefaults"); |
467 | db = XrmGetFileDatabase (xdefault); | |
837255fb JB |
468 | free (home); |
469 | free (xdefault); | |
f3a0bf5c JB |
470 | } |
471 | ||
d8717d15 | 472 | #ifdef HAVE_XSCREENRESOURCESTRING |
9b37b1c2 JB |
473 | /* Get the screen-specific resources too. */ |
474 | xdefs = XScreenResourceString (DefaultScreenOfDisplay (display)); | |
475 | if (xdefs != NULL) | |
fdce0b39 JB |
476 | { |
477 | XrmMergeDatabases (XrmGetStringDatabase (xdefs), &db); | |
478 | XFree (xdefs); | |
479 | } | |
9b37b1c2 JB |
480 | #endif |
481 | ||
f3a0bf5c JB |
482 | return db; |
483 | } | |
484 | ||
485 | static XrmDatabase | |
486 | get_environ_db () | |
487 | { | |
488 | XrmDatabase db; | |
489 | char *p; | |
e29ad342 | 490 | char *path = 0, *home = 0, *host; |
f3a0bf5c JB |
491 | |
492 | if ((p = getenv ("XENVIRONMENT")) == NULL) | |
493 | { | |
837255fb | 494 | home = gethomedir (); |
e29ad342 | 495 | host = get_system_name (); |
837255fb JB |
496 | path = (char *) malloc (strlen (home) |
497 | + sizeof (".Xdefaults-") | |
498 | + strlen (host)); | |
499 | sprintf (path, "%s%s%s", home, ".Xdefaults-", host); | |
f3a0bf5c JB |
500 | p = path; |
501 | } | |
502 | ||
503 | db = XrmGetFileDatabase (p); | |
837255fb JB |
504 | |
505 | if (path) free (path); | |
506 | if (home) free (home); | |
837255fb | 507 | |
f3a0bf5c JB |
508 | return db; |
509 | } | |
510 | \f | |
837255fb JB |
511 | /* External interface. */ |
512 | ||
f3a0bf5c JB |
513 | /* Types of values that we can find in a database */ |
514 | ||
515 | #define XrmStringType "String" /* String representation */ | |
516 | XrmRepresentation x_rm_string; /* Quark representation */ | |
517 | ||
518 | /* Load X resources based on the display and a possible -xrm option. */ | |
519 | ||
520 | XrmDatabase | |
837255fb | 521 | x_load_resources (display, xrm_string, myname, myclass) |
f3a0bf5c | 522 | Display *display; |
837255fb | 523 | char *xrm_string, *myname, *myclass; |
f3a0bf5c JB |
524 | { |
525 | char *xdefs; | |
837255fb | 526 | XrmDatabase user_database; |
f3a0bf5c JB |
527 | XrmDatabase rdb; |
528 | XrmDatabase db; | |
529 | ||
530 | x_rm_string = XrmStringToQuark (XrmStringType); | |
082dc211 RS |
531 | #ifndef USE_X_TOOLKIT |
532 | /* pmr@osf.org says this shouldn't be done if USE_X_TOOLKIT. | |
533 | I suspect it's because the toolkit version does this elsewhere. */ | |
f3a0bf5c | 534 | XrmInitialize (); |
082dc211 | 535 | #endif |
f3a0bf5c JB |
536 | rdb = XrmGetStringDatabase (""); |
537 | ||
837255fb JB |
538 | user_database = get_user_db (display); |
539 | ||
540 | /* Figure out what the "customization string" is, so we can use it | |
541 | to decode paths. */ | |
542 | if (x_customization_string) | |
543 | free (x_customization_string); | |
544 | x_customization_string | |
545 | = x_get_customization_string (user_database, myname, myclass); | |
546 | ||
f3a0bf5c JB |
547 | /* Get application system defaults */ |
548 | db = get_system_app (myclass); | |
549 | if (db != NULL) | |
550 | XrmMergeDatabases (db, &rdb); | |
551 | ||
552 | /* Get Fallback resources */ | |
553 | db = get_fallback (display); | |
554 | if (db != NULL) | |
555 | XrmMergeDatabases (db, &rdb); | |
556 | ||
557 | /* Get application user defaults */ | |
558 | db = get_user_app (myclass); | |
559 | if (db != NULL) | |
560 | XrmMergeDatabases (db, &rdb); | |
561 | ||
562 | /* get User defaults */ | |
837255fb JB |
563 | if (user_database != NULL) |
564 | XrmMergeDatabases (user_database, &rdb); | |
f3a0bf5c JB |
565 | |
566 | /* Get Environment defaults. */ | |
567 | db = get_environ_db (); | |
568 | if (db != NULL) | |
569 | XrmMergeDatabases (db, &rdb); | |
570 | ||
571 | /* Last, merge in any specification from the command line. */ | |
572 | if (xrm_string != NULL) | |
573 | { | |
574 | db = XrmGetStringDatabase (xrm_string); | |
575 | if (db != NULL) | |
576 | XrmMergeDatabases (db, &rdb); | |
577 | } | |
578 | ||
579 | return rdb; | |
580 | } | |
581 | ||
837255fb | 582 | |
f3a0bf5c JB |
583 | /* Retrieve the value of the resource specified by NAME with class CLASS |
584 | and of type TYPE from database RDB. The value is returned in RET_VALUE. */ | |
585 | ||
586 | int | |
587 | x_get_resource (rdb, name, class, expected_type, ret_value) | |
588 | XrmDatabase rdb; | |
589 | char *name, *class; | |
590 | XrmRepresentation expected_type; | |
591 | XrmValue *ret_value; | |
592 | { | |
593 | XrmValue value; | |
594 | XrmName namelist[100]; | |
595 | XrmClass classlist[100]; | |
596 | XrmRepresentation type; | |
597 | ||
598 | XrmStringToNameList(name, namelist); | |
599 | XrmStringToClassList(class, classlist); | |
600 | ||
601 | if (XrmQGetResource (rdb, namelist, classlist, &type, &value) == True | |
602 | && (type == expected_type)) | |
603 | { | |
604 | if (type == x_rm_string) | |
41ab0754 | 605 | ret_value->addr = (char *) value.addr; |
f3a0bf5c JB |
606 | else |
607 | bcopy (value.addr, ret_value->addr, ret_value->size); | |
608 | ||
609 | return value.size; | |
610 | } | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | /* Retrieve the string resource specified by NAME with CLASS from | |
616 | database RDB. */ | |
617 | ||
618 | char * | |
619 | x_get_string_resource (rdb, name, class) | |
620 | XrmDatabase rdb; | |
621 | char *name, *class; | |
622 | { | |
623 | XrmValue value; | |
624 | ||
625 | if (x_get_resource (rdb, name, class, x_rm_string, &value)) | |
626 | return (char *) value.addr; | |
627 | ||
628 | return (char *) 0; | |
629 | } | |
630 | \f | |
837255fb JB |
631 | /* Stand-alone test facilities. */ |
632 | ||
f3a0bf5c | 633 | #ifdef TESTRM |
837255fb JB |
634 | |
635 | typedef char **List; | |
636 | #define arg_listify(len, list) (list) | |
637 | #define car(list) (*(list)) | |
638 | #define cdr(list) (list + 1) | |
639 | #define NIL(list) (! *(list)) | |
640 | #define free_arglist(list) | |
641 | ||
642 | static List | |
643 | member (elt, list) | |
644 | char *elt; | |
645 | List list; | |
646 | { | |
647 | List p; | |
648 | ||
649 | for (p = list; ! NIL (p); p = cdr (p)) | |
650 | if (! strcmp (elt, car (p))) | |
651 | return p; | |
652 | ||
653 | return p; | |
654 | } | |
f3a0bf5c JB |
655 | |
656 | static void | |
657 | fatal (msg, prog, x1, x2, x3, x4, x5) | |
658 | char *msg, *prog; | |
659 | int x1, x2, x3, x4, x5; | |
660 | { | |
661 | extern int errno; | |
662 | ||
663 | if (errno) | |
664 | perror (prog); | |
665 | ||
666 | (void) fprintf (stderr, msg, prog, x1, x2, x3, x4, x5); | |
667 | exit (1); | |
668 | } | |
669 | ||
670 | main (argc, argv) | |
671 | int argc; | |
672 | char **argv; | |
673 | { | |
674 | Display *display; | |
837255fb | 675 | char *displayname, *resource_string, *class, *name; |
f3a0bf5c | 676 | XrmDatabase xdb; |
837255fb | 677 | List arg_list, lp; |
f3a0bf5c JB |
678 | |
679 | arg_list = arg_listify (argc, argv); | |
680 | ||
681 | lp = member ("-d", arg_list); | |
682 | if (!NIL (lp)) | |
683 | displayname = car (cdr (lp)); | |
684 | else | |
685 | displayname = "localhost:0.0"; | |
686 | ||
687 | lp = member ("-xrm", arg_list); | |
688 | if (! NIL (lp)) | |
689 | resource_string = car (cdr (lp)); | |
690 | else | |
691 | resource_string = (char *) 0; | |
692 | ||
693 | lp = member ("-c", arg_list); | |
694 | if (! NIL (lp)) | |
695 | class = car (cdr (lp)); | |
696 | else | |
697 | class = "Emacs"; | |
698 | ||
837255fb JB |
699 | lp = member ("-n", arg_list); |
700 | if (! NIL (lp)) | |
701 | name = car (cdr (lp)); | |
702 | else | |
703 | name = "emacs"; | |
f3a0bf5c | 704 | |
837255fb | 705 | free_arglist (arg_list); |
f3a0bf5c JB |
706 | |
707 | if (!(display = XOpenDisplay (displayname))) | |
708 | fatal ("Can't open display '%s'\n", XDisplayName (displayname)); | |
709 | ||
837255fb | 710 | xdb = x_load_resources (display, resource_string, name, class); |
f3a0bf5c | 711 | |
f3a0bf5c JB |
712 | /* In a real program, you'd want to also do this: */ |
713 | display->db = xdb; | |
f3a0bf5c JB |
714 | |
715 | while (1) | |
716 | { | |
837255fb JB |
717 | char query_name[90]; |
718 | char query_class[90]; | |
719 | ||
720 | printf ("Name: "); | |
721 | gets (query_name); | |
f3a0bf5c | 722 | |
837255fb | 723 | if (strlen (query_name)) |
f3a0bf5c | 724 | { |
837255fb JB |
725 | char *value; |
726 | ||
727 | printf ("Class: "); | |
728 | gets (query_class); | |
729 | ||
730 | value = x_get_string_resource (xdb, query_name, query_class); | |
f3a0bf5c JB |
731 | |
732 | if (value != NULL) | |
837255fb | 733 | printf ("\t%s(%s): %s\n\n", query_name, query_class, value); |
f3a0bf5c JB |
734 | else |
735 | printf ("\tNo Value.\n\n"); | |
736 | } | |
737 | else | |
738 | break; | |
739 | } | |
740 | printf ("\tExit.\n\n"); | |
741 | ||
742 | XCloseDisplay (display); | |
743 | } | |
744 | #endif /* TESTRM */ |