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Commit | Line | Data |
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6b666d62 MT |
1 | /*############################################################################# |
2 | # # | |
3 | # IPFire.org - A linux based firewall # | |
4 | # Copyright (C) 2023 IPFire Network Development Team # | |
5 | # # | |
6 | # This program is free software: you can redistribute it and/or modify # | |
7 | # it under the terms of the GNU General Public License as published by # | |
8 | # the Free Software Foundation, either version 3 of the License, or # | |
9 | # (at your option) any later version. # | |
10 | # # | |
11 | # This program is distributed in the hope that it will be useful, # | |
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 # | |
17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
18 | # # | |
19 | #############################################################################*/ | |
20 | ||
25808f65 | 21 | #include <dirent.h> |
4237caa2 | 22 | #include <errno.h> |
25808f65 | 23 | #include <fcntl.h> |
b076fa8b | 24 | #include <limits.h> |
c81a6335 | 25 | #include <stdio.h> |
6b666d62 | 26 | #include <stdlib.h> |
4237caa2 MT |
27 | #include <string.h> |
28 | #include <sys/queue.h> | |
25808f65 MT |
29 | #include <sys/types.h> |
30 | #include <sys/stat.h> | |
c403eb4c | 31 | #include <unistd.h> |
6b666d62 | 32 | |
082d81a3 | 33 | #include "address.h" |
6b666d62 | 34 | #include "config.h" |
c81a6335 | 35 | #include "logging.h" |
4237caa2 MT |
36 | #include "string.h" |
37 | ||
38 | struct nw_config_entry { | |
39 | STAILQ_ENTRY(nw_config_entry) nodes; | |
40 | ||
41 | char key[NETWORK_CONFIG_KEY_MAX_LENGTH]; | |
42 | char value[NETWORK_CONFIG_KEY_MAX_LENGTH]; | |
43 | }; | |
6b666d62 | 44 | |
082d81a3 MT |
45 | struct nw_config_option { |
46 | STAILQ_ENTRY(nw_config_option) nodes; | |
47 | ||
48 | const char* key; | |
cc54472e | 49 | void* value; |
e633147d | 50 | size_t length; |
082d81a3 MT |
51 | |
52 | // Callbacks | |
53 | nw_config_option_read_callback_t read_callback; | |
54 | nw_config_option_write_callback_t write_callback; | |
3eeb38b7 | 55 | void* data; |
082d81a3 MT |
56 | }; |
57 | ||
6b666d62 MT |
58 | struct nw_config { |
59 | int nrefs; | |
4237caa2 | 60 | |
082d81a3 MT |
61 | STAILQ_HEAD(config_entries, nw_config_entry) entries; |
62 | ||
63 | // Options | |
64 | STAILQ_HEAD(parser_entries, nw_config_option) options; | |
6b666d62 MT |
65 | }; |
66 | ||
4237caa2 MT |
67 | static void nw_config_entry_free(struct nw_config_entry* entry) { |
68 | free(entry); | |
69 | } | |
70 | ||
082d81a3 MT |
71 | static void nw_config_option_free(struct nw_config_option* option) { |
72 | free(option); | |
73 | } | |
74 | ||
4237caa2 | 75 | static struct nw_config_entry* nw_config_entry_create( |
2361667e | 76 | nw_config* config, const char* key) { |
4237caa2 MT |
77 | int r; |
78 | ||
79 | // Check input value | |
80 | if (!key) { | |
81 | errno = EINVAL; | |
82 | return NULL; | |
83 | } | |
84 | ||
85 | // Allocate a new object | |
86 | struct nw_config_entry* entry = calloc(1, sizeof(*entry)); | |
87 | if (!entry) | |
88 | return NULL; | |
89 | ||
90 | // Store the key | |
91 | r = nw_string_set(entry->key, key); | |
92 | if (r) | |
93 | goto ERROR; | |
94 | ||
95 | // Append the new entry | |
96 | STAILQ_INSERT_TAIL(&config->entries, entry, nodes); | |
97 | ||
82f84c5f MT |
98 | return entry; |
99 | ||
4237caa2 MT |
100 | ERROR: |
101 | nw_config_entry_free(entry); | |
102 | return NULL; | |
103 | } | |
104 | ||
2361667e | 105 | static void nw_config_free(nw_config* config) { |
082d81a3 MT |
106 | struct nw_config_option* option = NULL; |
107 | ||
91915f80 MT |
108 | // Flush all entries |
109 | nw_config_flush(config); | |
4237caa2 | 110 | |
082d81a3 MT |
111 | // Free all options |
112 | while (!STAILQ_EMPTY(&config->options)) { | |
113 | option = STAILQ_FIRST(&config->options); | |
114 | STAILQ_REMOVE_HEAD(&config->options, nodes); | |
115 | ||
116 | // Free the options | |
117 | nw_config_option_free(option); | |
118 | } | |
119 | ||
6b666d62 MT |
120 | free(config); |
121 | } | |
122 | ||
8edf3da1 | 123 | int nw_config_create(nw_config** config, FILE* f) { |
b076fa8b MT |
124 | int r; |
125 | ||
2361667e | 126 | nw_config* c = calloc(1, sizeof(*c)); |
6b666d62 MT |
127 | if (!c) |
128 | return 1; | |
129 | ||
130 | // Initialize reference counter | |
131 | c->nrefs = 1; | |
132 | ||
4237caa2 MT |
133 | // Initialise entries |
134 | STAILQ_INIT(&c->entries); | |
135 | ||
082d81a3 MT |
136 | // Initialise options |
137 | STAILQ_INIT(&c->options); | |
138 | ||
8edf3da1 MT |
139 | // Read configuration |
140 | if (f) { | |
141 | r = nw_config_read(c, f); | |
142 | if (r < 0) | |
b076fa8b MT |
143 | goto ERROR; |
144 | } | |
145 | ||
6b666d62 MT |
146 | *config = c; |
147 | ||
148 | return 0; | |
b076fa8b MT |
149 | |
150 | ERROR: | |
151 | nw_config_free(c); | |
152 | ||
153 | return r; | |
6b666d62 MT |
154 | } |
155 | ||
8edf3da1 MT |
156 | int nw_config_open(nw_config** config, const char* path) { |
157 | FILE* f = NULL; | |
158 | int r; | |
159 | ||
160 | // Open path | |
161 | f = fopen(path, "r"); | |
162 | if (!f) | |
163 | return -errno; | |
164 | ||
165 | // Create a new configuration | |
166 | r = nw_config_create(config, f); | |
167 | ||
8edf3da1 MT |
168 | if (f) |
169 | fclose(f); | |
170 | ||
171 | return r; | |
172 | } | |
173 | ||
2361667e | 174 | nw_config* nw_config_ref(nw_config* config) { |
6b666d62 MT |
175 | config->nrefs++; |
176 | ||
177 | return config; | |
178 | } | |
179 | ||
2361667e | 180 | nw_config* nw_config_unref(nw_config* config) { |
6b666d62 MT |
181 | if (--config->nrefs > 0) |
182 | return config; | |
183 | ||
184 | nw_config_free(config); | |
185 | return NULL; | |
186 | } | |
c81a6335 | 187 | |
082d81a3 MT |
188 | int nw_config_copy(nw_config* config, nw_config** copy) { |
189 | struct nw_config_entry* entry = NULL; | |
190 | nw_config* c = NULL; | |
191 | int r; | |
192 | ||
193 | // Create a new configuration | |
194 | r = nw_config_create(&c, NULL); | |
195 | if (r) | |
196 | return r; | |
197 | ||
198 | // Copy everything | |
199 | STAILQ_FOREACH(entry, &config->entries, nodes) { | |
200 | r = nw_config_set(c, entry->key, entry->value); | |
201 | if (r) | |
202 | goto ERROR; | |
203 | } | |
204 | ||
205 | *copy = c; | |
206 | return 0; | |
207 | ||
208 | ERROR: | |
209 | if (c) | |
210 | nw_config_unref(c); | |
211 | ||
212 | return r; | |
213 | } | |
214 | ||
2361667e | 215 | int nw_config_flush(nw_config* config) { |
91915f80 MT |
216 | struct nw_config_entry* entry = NULL; |
217 | ||
218 | while (!STAILQ_EMPTY(&config->entries)) { | |
219 | entry = STAILQ_FIRST(&config->entries); | |
220 | STAILQ_REMOVE_HEAD(&config->entries, nodes); | |
221 | ||
222 | // Free the entry | |
223 | nw_config_entry_free(entry); | |
224 | } | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
8edf3da1 | 229 | int nw_config_read(nw_config* config, FILE* f) { |
5ef56cff MT |
230 | char* line = NULL; |
231 | size_t length = 0; | |
232 | int r; | |
c81a6335 | 233 | |
5ef56cff MT |
234 | ssize_t bytes_read = 0; |
235 | ||
236 | char* key = NULL; | |
237 | char* val = NULL; | |
238 | ||
239 | for (;;) { | |
240 | // Read the next line | |
241 | bytes_read = getline(&line, &length, f); | |
242 | if (bytes_read < 0) | |
243 | break; | |
244 | ||
245 | // Key starts at the beginning of the line | |
246 | key = line; | |
247 | ||
248 | // Value starts after '=' | |
249 | val = strchr(line, '='); | |
250 | ||
251 | // Invalid line without a '=' character | |
252 | if (!val) | |
253 | continue; | |
254 | ||
255 | // Split the string | |
256 | *val++ = '\0'; | |
257 | ||
258 | // Strip any whitespace from value | |
259 | r = nw_string_strip(val); | |
260 | if (r) | |
261 | break; | |
262 | ||
263 | // Store the setting | |
264 | r = nw_config_set(config, key, val); | |
265 | if (r) | |
266 | break; | |
267 | } | |
268 | ||
269 | if (line) | |
270 | free(line); | |
271 | ||
272 | return r; | |
c81a6335 MT |
273 | } |
274 | ||
8edf3da1 | 275 | int nw_config_write(nw_config* config, FILE* f) { |
d3dfdb77 MT |
276 | struct nw_config_entry* entry = NULL; |
277 | int r; | |
278 | ||
279 | STAILQ_FOREACH(entry, &config->entries, nodes) { | |
280 | // Skip if value is NULL | |
281 | if (!*entry->value) | |
282 | continue; | |
283 | ||
284 | // Write the entry | |
5ef56cff | 285 | r = fprintf(f, "%s=%s\n", entry->key, entry->value); |
d3dfdb77 MT |
286 | if (r < 0) { |
287 | ERROR("Failed to write configuration: %m\n"); | |
288 | return r; | |
289 | } | |
290 | } | |
291 | ||
292 | return 0; | |
293 | } | |
294 | ||
2361667e | 295 | static struct nw_config_entry* nw_config_find(nw_config* config, const char* key) { |
4237caa2 MT |
296 | struct nw_config_entry* entry = NULL; |
297 | ||
298 | STAILQ_FOREACH(entry, &config->entries, nodes) { | |
299 | // Key must match | |
300 | if (strcmp(entry->key, key) != 0) | |
301 | continue; | |
302 | ||
303 | // Match! | |
304 | return entry; | |
305 | } | |
306 | ||
307 | // No match | |
308 | return NULL; | |
309 | } | |
310 | ||
2361667e | 311 | int nw_config_del(nw_config* config, const char* key) { |
4237caa2 MT |
312 | struct nw_config_entry* entry = NULL; |
313 | ||
314 | // Find an entry matching the key | |
315 | entry = nw_config_find(config, key); | |
316 | ||
317 | // If there is no entry, there is nothing to do | |
318 | if (!entry) | |
319 | return 0; | |
320 | ||
321 | // Otherwise remove the object | |
322 | STAILQ_REMOVE(&config->entries, entry, nw_config_entry, nodes); | |
323 | ||
324 | // Free the entry | |
325 | nw_config_entry_free(entry); | |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
2361667e | 330 | const char* nw_config_get(nw_config* config, const char* key) { |
9368a163 MT |
331 | struct nw_config_entry* entry = nw_config_find(config, key); |
332 | ||
333 | // Return the value if found and set | |
334 | if (entry && *entry->value) | |
335 | return entry->value; | |
336 | ||
337 | // Otherwise return NULL | |
338 | return NULL; | |
339 | } | |
340 | ||
2361667e | 341 | int nw_config_set(nw_config* config, const char* key, const char* value) { |
4237caa2 MT |
342 | struct nw_config_entry* entry = NULL; |
343 | ||
082d81a3 MT |
344 | // Log the change |
345 | DEBUG("%p: Setting %s = %s\n", config, key, value); | |
346 | ||
4237caa2 MT |
347 | // Delete the entry if val is NULL |
348 | if (!value) | |
349 | return nw_config_del(config, key); | |
350 | ||
351 | // Find any existing entries | |
352 | entry = nw_config_find(config, key); | |
353 | ||
354 | // Create a new entry if it doesn't exist, yet | |
355 | if (!entry) { | |
356 | entry = nw_config_entry_create(config, key); | |
357 | if (!entry) | |
358 | return 1; | |
359 | } | |
360 | ||
361 | // Store the new value | |
362 | return nw_string_set(entry->value, value); | |
363 | } | |
d39683a6 | 364 | |
2361667e | 365 | int nw_config_get_int(nw_config* config, const char* key, const int __default) { |
92c8a4fe MT |
366 | char* p = NULL; |
367 | int r; | |
368 | ||
d39683a6 MT |
369 | const char* value = nw_config_get(config, key); |
370 | ||
371 | // Return zero if not set | |
372 | if (!value) | |
9368a163 | 373 | return __default; |
d39683a6 | 374 | |
92c8a4fe MT |
375 | // Parse the input |
376 | r = strtoul(value, &p, 10); | |
377 | ||
378 | // If we have characters following the input, we throw it away | |
379 | if (p) | |
380 | return __default; | |
381 | ||
382 | return r; | |
d39683a6 | 383 | } |
9368a163 | 384 | |
2361667e | 385 | int nw_config_set_int(nw_config* config, const char* key, const int value) { |
9368a163 MT |
386 | char __value[1024]; |
387 | int r; | |
388 | ||
389 | // Format the value as string | |
2d000517 | 390 | r = nw_string_format(__value, "%d", value); |
9368a163 MT |
391 | if (r) |
392 | return r; | |
393 | ||
394 | return nw_config_set(config, key, __value); | |
395 | } | |
8b0b5c6d MT |
396 | |
397 | static const char* nw_config_true[] = { | |
398 | "true", | |
399 | "yes", | |
400 | "1", | |
401 | NULL, | |
402 | }; | |
403 | ||
404 | int nw_config_get_bool(nw_config* config, const char* key) { | |
405 | const char* value = nw_config_get(config, key); | |
406 | ||
407 | // No value indicates false | |
408 | if (!value) | |
409 | return 0; | |
410 | ||
411 | // Check if we match any known true words | |
412 | for (const char** s = nw_config_true; *s; s++) { | |
8923434c | 413 | if (strcasecmp(value, *s) == 0) |
8b0b5c6d MT |
414 | return 1; |
415 | } | |
416 | ||
417 | // No match means false | |
418 | return 0; | |
419 | } | |
420 | ||
421 | int nw_config_set_bool(nw_config* config, const char* key, const int value) { | |
422 | return nw_config_set(config, key, value ? "true" : "false"); | |
423 | } | |
082d81a3 | 424 | |
25808f65 MT |
425 | /* |
426 | Directory | |
427 | */ | |
428 | ||
429 | struct nw_configd { | |
430 | int nrefs; | |
431 | ||
432 | char path[PATH_MAX]; | |
433 | int fd; | |
434 | }; | |
435 | ||
436 | static void nw_configd_free(nw_configd* dir) { | |
437 | if (dir->fd >= 0) | |
438 | close(dir->fd); | |
439 | ||
440 | free(dir); | |
441 | } | |
442 | ||
443 | static int __nw_configd_create(nw_configd** dir, int fd, const char* path) { | |
444 | nw_configd* d = NULL; | |
445 | int r; | |
446 | ||
447 | // Allocate a new object | |
448 | d = calloc(1, sizeof(*d)); | |
449 | if (!d) | |
450 | return -errno; | |
451 | ||
452 | // Initialize the reference counter | |
453 | d->nrefs = 1; | |
454 | ||
455 | // Store the file descriptor | |
456 | d->fd = dup(fd); | |
457 | if (d->fd < 0) { | |
458 | r = -errno; | |
459 | goto ERROR; | |
460 | } | |
461 | ||
462 | // Store path | |
463 | if (path) { | |
464 | r = nw_string_set(d->path, path); | |
465 | if (r < 0) | |
466 | goto ERROR; | |
467 | } | |
468 | ||
469 | *dir = d; | |
470 | return 0; | |
471 | ||
472 | ERROR: | |
473 | nw_configd_free(d); | |
474 | return r; | |
475 | } | |
476 | ||
477 | int nw_configd_create(nw_configd** dir, const char* path) { | |
478 | int fd; | |
479 | ||
480 | // Open the directory | |
481 | fd = open(path, O_DIRECTORY); | |
482 | if (fd < 0) { | |
483 | ERROR("Could not open %s: %m\n", path); | |
484 | return -errno; | |
485 | } | |
486 | ||
487 | return __nw_configd_create(dir, fd, path); | |
488 | } | |
489 | ||
490 | nw_configd* nw_configd_ref(nw_configd* dir) { | |
491 | dir->nrefs++; | |
492 | ||
493 | return dir; | |
494 | } | |
495 | ||
496 | nw_configd* nw_configd_unref(nw_configd* dir) { | |
497 | if (--dir->nrefs > 0) | |
498 | return dir; | |
499 | ||
500 | nw_configd_free(dir); | |
501 | return NULL; | |
502 | } | |
503 | ||
504 | static int nw_configd_open(nw_configd* dir, const char* path, int flags) { | |
505 | return openat(dir->fd, path, flags); | |
506 | } | |
507 | ||
508 | FILE* nw_configd_fopen(nw_configd* dir, const char* path, const char* mode) { | |
509 | int fd; | |
510 | ||
511 | // Open file | |
512 | fd = nw_configd_open(dir, path, 0); | |
513 | if (fd < 0) | |
514 | return NULL; | |
515 | ||
516 | // Return a file handle | |
517 | return fdopen(fd, mode); | |
518 | } | |
519 | ||
520 | int nw_configd_open_config(nw_config** config, nw_configd* dir, const char* path) { | |
521 | FILE* f = NULL; | |
522 | int r; | |
523 | ||
524 | // Open the file | |
525 | f = nw_configd_fopen(dir, path, "r"); | |
526 | if (!f) | |
527 | return -errno; | |
528 | ||
529 | // Create configuration | |
530 | r = nw_config_create(config, f); | |
531 | if (r < 0) | |
532 | goto ERROR; | |
533 | ||
534 | ERROR: | |
535 | if (f) | |
536 | fclose(f); | |
537 | ||
538 | return r; | |
539 | } | |
540 | ||
541 | int nw_configd_unlink(nw_configd* dir, const char* path, int flags) { | |
542 | return unlinkat(dir->fd, path, flags); | |
543 | } | |
544 | ||
545 | nw_configd* nw_configd_descend(nw_configd* dir, const char* path) { | |
546 | nw_configd* d = NULL; | |
547 | char p[PATH_MAX]; | |
548 | int fd = -1; | |
549 | int r; | |
550 | ||
551 | // Join paths | |
552 | r = nw_path_join(p, dir->path, path); | |
553 | if (r < 0) | |
554 | goto ERROR; | |
555 | ||
556 | // Open directory | |
557 | fd = nw_configd_open(dir, path, O_DIRECTORY); | |
558 | if (fd < 0) { | |
559 | ERROR("Could not open %s: %m\n", p); | |
560 | goto ERROR; | |
561 | } | |
562 | ||
563 | // Create a new config directory object | |
564 | r = __nw_configd_create(&d, fd, p); | |
565 | if (r < 0) | |
566 | goto ERROR; | |
567 | ||
568 | ERROR: | |
569 | if (fd >= 0) | |
570 | close(fd); | |
571 | ||
572 | return d; | |
573 | } | |
574 | ||
575 | int nw_configd_walk(nw_configd* dir, nw_configd_walk_callback callback, void* data) { | |
576 | FILE* f = NULL; | |
577 | DIR* d = NULL; | |
578 | struct dirent* e = NULL; | |
579 | int r; | |
580 | ||
581 | // Re-open the directory | |
582 | d = fdopendir(dir->fd); | |
583 | if (!d) { | |
584 | r = -errno; | |
585 | goto ERROR; | |
586 | } | |
587 | ||
588 | // Walk trough everything | |
589 | for (;;) { | |
590 | // Read the next entry | |
591 | e = readdir(d); | |
592 | if (!e) | |
593 | break; | |
594 | ||
595 | // Skip anything that is not a regular file | |
596 | if (e->d_type != DT_REG) | |
597 | continue; | |
598 | ||
599 | // Skip hidden files | |
600 | if (e->d_name[0] == '.') | |
601 | continue; | |
602 | ||
603 | // Open the file | |
604 | f = nw_configd_fopen(dir, e->d_name, "r"); | |
605 | if (!f) { | |
606 | r = -errno; | |
607 | goto ERROR; | |
608 | } | |
609 | ||
610 | // Call the callback | |
611 | r = callback(e, f, data); | |
612 | fclose(f); | |
613 | ||
614 | if (r < 0) | |
615 | goto ERROR; | |
616 | } | |
617 | ||
618 | r = 0; | |
619 | ||
620 | ERROR: | |
621 | if (d) | |
622 | closedir(d); | |
623 | ||
624 | return r; | |
625 | } | |
626 | ||
082d81a3 MT |
627 | /* |
628 | Options | |
629 | */ | |
630 | ||
631 | int nw_config_options_read(nw_config* config) { | |
632 | struct nw_config_option* option = NULL; | |
633 | int r; | |
634 | ||
635 | STAILQ_FOREACH(option, &config->options, nodes) { | |
e633147d MT |
636 | r = option->read_callback(config, |
637 | option->key, option->value, option->length, option->data); | |
082d81a3 MT |
638 | if (r < 0) |
639 | return r; | |
640 | } | |
641 | ||
642 | return 0; | |
643 | } | |
644 | ||
645 | int nw_config_options_write(nw_config* config) { | |
646 | struct nw_config_option* option = NULL; | |
647 | int r; | |
648 | ||
649 | STAILQ_FOREACH(option, &config->options, nodes) { | |
e633147d MT |
650 | r = option->write_callback(config, |
651 | option->key, option->value, option->length, option->data); | |
082d81a3 MT |
652 | if (r < 0) |
653 | return r; | |
654 | } | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
e633147d MT |
659 | int nw_config_option_add(nw_config* config, |
660 | const char* key, void* value, const size_t length, | |
082d81a3 | 661 | nw_config_option_read_callback_t read_callback, |
3eeb38b7 | 662 | nw_config_option_write_callback_t write_callback, void* data) { |
082d81a3 | 663 | // Check input |
cc54472e | 664 | if (!key || !value || !read_callback || !write_callback) |
082d81a3 MT |
665 | return -EINVAL; |
666 | ||
667 | // Allocate a new option | |
668 | struct nw_config_option* option = calloc(1, sizeof(*option)); | |
669 | if (!option) | |
670 | return -errno; | |
671 | ||
672 | // Set key | |
673 | option->key = key; | |
674 | ||
cc54472e MT |
675 | // Set value |
676 | option->value = value; | |
e633147d | 677 | option->length = length; |
082d81a3 MT |
678 | |
679 | // Set callbacks | |
680 | option->read_callback = read_callback; | |
681 | option->write_callback = write_callback; | |
3eeb38b7 | 682 | option->data = data; |
082d81a3 MT |
683 | |
684 | // Append the new option | |
685 | STAILQ_INSERT_TAIL(&config->options, option, nodes); | |
686 | ||
687 | return 0; | |
688 | } | |
689 | ||
e633147d MT |
690 | int nw_config_read_int(nw_config* config, |
691 | const char* key, void* value, const size_t length, void* data) { | |
082d81a3 | 692 | // Fetch the value |
cc54472e | 693 | *(int*)value = nw_config_get_int(config, key, -1); |
082d81a3 MT |
694 | |
695 | return 0; | |
696 | } | |
697 | ||
3eeb38b7 | 698 | int nw_config_write_int(nw_config* config, |
e633147d | 699 | const char* key, const void* value, const size_t length, void* data) { |
082d81a3 MT |
700 | return 0; |
701 | } | |
702 | ||
703 | // String | |
704 | ||
e633147d MT |
705 | int nw_config_read_string(nw_config* config, |
706 | const char* key, void* value, const size_t length, void* data) { | |
082d81a3 | 707 | // Fetch the value |
cc54472e MT |
708 | const char* p = nw_config_get(config, key); |
709 | if (p) | |
710 | *(const char**)value = p; | |
082d81a3 MT |
711 | |
712 | return 0; | |
713 | } | |
714 | ||
3eeb38b7 | 715 | int nw_config_write_string(nw_config* config, |
e633147d | 716 | const char* key, const void* value, const size_t length, void* data) { |
cc54472e | 717 | return nw_config_set(config, key, *(const char**)value); |
082d81a3 MT |
718 | } |
719 | ||
e633147d MT |
720 | // String Buffer |
721 | ||
722 | int nw_config_read_string_buffer(nw_config* config, | |
723 | const char* key, void* value, const size_t length, void* data) { | |
724 | char* string = (char*)value; | |
725 | ||
726 | // Fetch the value | |
727 | const char* p = nw_config_get(config, key); | |
728 | if (p) | |
729 | return __nw_string_set(string, length, p); | |
730 | ||
731 | return 0; | |
732 | } | |
733 | ||
7442668a MT |
734 | // String Table |
735 | ||
e633147d MT |
736 | int nw_config_read_string_table(nw_config* config, |
737 | const char* key, void* value, const size_t length, void* data) { | |
7442668a MT |
738 | const char* s = NULL; |
739 | int* v = (int*)value; | |
740 | ||
741 | const nw_string_table_t* table = (nw_string_table_t*)data; | |
742 | ||
743 | // Fetch the string | |
744 | s = nw_config_get(config, key); | |
745 | if (!s) | |
746 | return -errno; | |
747 | ||
748 | // Lookup the string in the table | |
749 | *v = nw_string_table_lookup_id(table, s); | |
750 | ||
751 | // If the result is negative, nothing was found | |
752 | if (*v < 0) | |
753 | return -EINVAL; | |
754 | ||
755 | return 0; | |
756 | } | |
757 | ||
758 | int nw_config_write_string_table(nw_config* config, | |
e633147d | 759 | const char* key, const void* value, const size_t length, void* data) { |
7442668a MT |
760 | int* v = (int*)value; |
761 | ||
762 | const nw_string_table_t* table = (nw_string_table_t*)data; | |
763 | ||
764 | // Lookup the string | |
765 | const char* s = nw_string_table_lookup_string(table, *v); | |
766 | if (!s) | |
767 | return -errno; | |
768 | ||
769 | return nw_config_set(config, key, s); | |
770 | } | |
771 | ||
082d81a3 MT |
772 | // Address |
773 | ||
e633147d MT |
774 | int nw_config_read_address(nw_config* config, |
775 | const char* key, void* value, const size_t length, void* data) { | |
cc54472e | 776 | nw_address_t* address = (nw_address_t*)value; |
082d81a3 MT |
777 | int r; |
778 | ||
779 | // Fetch the value | |
cc54472e MT |
780 | const char* p = nw_config_get(config, key); |
781 | if (!p) | |
082d81a3 MT |
782 | return -EINVAL; |
783 | ||
cc54472e | 784 | r = nw_address_from_string(address, p); |
082d81a3 | 785 | if (r < 0) |
cc54472e | 786 | ERROR("Could not parse address: %s\n", p); |
082d81a3 MT |
787 | |
788 | return r; | |
789 | } | |
790 | ||
3eeb38b7 | 791 | int nw_config_write_address(nw_config* config, |
e633147d | 792 | const char* key, const void* value, const size_t length, void* data) { |
cc54472e | 793 | const nw_address_t* address = (nw_address_t*)value; |
082d81a3 MT |
794 | int r; |
795 | ||
796 | // Format the address to string | |
cc54472e MT |
797 | char* p = nw_address_to_string(address); |
798 | if (!p) | |
082d81a3 MT |
799 | return -errno; |
800 | ||
801 | // Store the value | |
cc54472e | 802 | r = nw_config_set(config, key, p); |
082d81a3 MT |
803 | if (r < 0) |
804 | goto ERROR; | |
805 | ||
806 | // Success | |
807 | r = 0; | |
808 | ||
809 | ERROR: | |
cc54472e MT |
810 | if (p) |
811 | free(p); | |
082d81a3 MT |
812 | |
813 | return r; | |
814 | } |