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d4205751 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <fcntl.h> | |
23 | #include <stdio.h> | |
24 | #include <unistd.h> | |
25 | #include <errno.h> | |
26 | #include <string.h> | |
27 | #include <sys/mman.h> | |
28 | #include <locale.h> | |
29 | ||
30 | #include "util.h" | |
31 | #include "log.h" | |
32 | #include "sparse-endian.h" | |
33 | #include "sd-id128.h" | |
34 | #include "hashmap.h" | |
35 | #include "strv.h" | |
36 | #include "strbuf.h" | |
37 | #include "conf-files.h" | |
38 | #include "mkdir.h" | |
39 | #include "catalog.h" | |
9bf3b535 | 40 | #include "siphash24.h" |
d4205751 | 41 | |
844ec79b | 42 | const char * const catalog_file_dirs[] = { |
d4205751 LP |
43 | "/usr/local/lib/systemd/catalog/", |
44 | "/usr/lib/systemd/catalog/", | |
45 | NULL | |
46 | }; | |
47 | ||
48 | #define CATALOG_SIGNATURE (uint8_t[]) { 'R', 'H', 'H', 'H', 'K', 'S', 'L', 'P' } | |
49 | ||
50 | typedef struct CatalogHeader { | |
51 | uint8_t signature[8]; /* "RHHHKSLP" */ | |
52 | le32_t compatible_flags; | |
53 | le32_t incompatible_flags; | |
83f6936a LP |
54 | le64_t header_size; |
55 | le64_t n_items; | |
56 | le64_t catalog_item_size; | |
d4205751 LP |
57 | } CatalogHeader; |
58 | ||
59 | typedef struct CatalogItem { | |
60 | sd_id128_t id; | |
61 | char language[32]; | |
83f6936a | 62 | le64_t offset; |
d4205751 LP |
63 | } CatalogItem; |
64 | ||
d5099efc | 65 | static unsigned long catalog_hash_func(const void *p, const uint8_t hash_key[HASH_KEY_SIZE]) { |
d4205751 | 66 | const CatalogItem *i = p; |
9bf3b535 LP |
67 | uint64_t u; |
68 | size_t l, sz; | |
69 | void *v; | |
d4205751 | 70 | |
9bf3b535 LP |
71 | l = strlen(i->language); |
72 | sz = sizeof(i->id) + l; | |
73 | v = alloca(sz); | |
74 | ||
75 | memcpy(mempcpy(v, &i->id, sizeof(i->id)), i->language, l); | |
76 | ||
77 | siphash24((uint8_t*) &u, v, sz, hash_key); | |
78 | ||
79 | return (unsigned long) u; | |
d4205751 LP |
80 | } |
81 | ||
d5099efc | 82 | static int catalog_compare_func(const void *a, const void *b) { |
d4205751 LP |
83 | const CatalogItem *i = a, *j = b; |
84 | unsigned k; | |
85 | ||
86 | for (k = 0; k < ELEMENTSOF(j->id.bytes); k++) { | |
87 | if (i->id.bytes[k] < j->id.bytes[k]) | |
88 | return -1; | |
89 | if (i->id.bytes[k] > j->id.bytes[k]) | |
90 | return 1; | |
91 | } | |
92 | ||
18cd5fe9 | 93 | return strcmp(i->language, j->language); |
d4205751 LP |
94 | } |
95 | ||
d5099efc MS |
96 | const struct hash_ops catalog_hash_ops = { |
97 | .hash = catalog_hash_func, | |
98 | .compare = catalog_compare_func | |
99 | }; | |
100 | ||
d4205751 LP |
101 | static int finish_item( |
102 | Hashmap *h, | |
103 | struct strbuf *sb, | |
104 | sd_id128_t id, | |
105 | const char *language, | |
106 | const char *payload) { | |
107 | ||
108 | ssize_t offset; | |
e3b9d9c8 | 109 | _cleanup_free_ CatalogItem *i = NULL; |
d4205751 LP |
110 | int r; |
111 | ||
112 | assert(h); | |
113 | assert(sb); | |
114 | assert(payload); | |
115 | ||
116 | offset = strbuf_add_string(sb, payload, strlen(payload)); | |
117 | if (offset < 0) | |
118 | return log_oom(); | |
119 | ||
d4205751 LP |
120 | i = new0(CatalogItem, 1); |
121 | if (!i) | |
122 | return log_oom(); | |
123 | ||
124 | i->id = id; | |
c7332b08 ZJS |
125 | if (language) { |
126 | assert(strlen(language) > 1 && strlen(language) < 32); | |
127 | strcpy(i->language, language); | |
128 | } | |
83f6936a | 129 | i->offset = htole64((uint64_t) offset); |
d4205751 LP |
130 | |
131 | r = hashmap_put(h, i, i); | |
e3b9d9c8 | 132 | if (r == -EEXIST) { |
18cd5fe9 ZJS |
133 | log_warning("Duplicate entry for " SD_ID128_FORMAT_STR ".%s, ignoring.", |
134 | SD_ID128_FORMAT_VAL(id), language ? language : "C"); | |
d4205751 | 135 | return 0; |
e3b9d9c8 ZJS |
136 | } else if (r < 0) |
137 | return r; | |
d4205751 | 138 | |
e3b9d9c8 | 139 | i = NULL; |
d4205751 LP |
140 | return 0; |
141 | } | |
142 | ||
c7332b08 ZJS |
143 | int catalog_file_lang(const char* filename, char **lang) { |
144 | char *beg, *end, *_lang; | |
145 | ||
146 | end = endswith(filename, ".catalog"); | |
147 | if (!end) | |
148 | return 0; | |
149 | ||
150 | beg = end - 1; | |
4b8268f8 | 151 | while (beg > filename && *beg != '.' && *beg != '/' && end - beg < 32) |
c7332b08 ZJS |
152 | beg --; |
153 | ||
4b8268f8 | 154 | if (*beg != '.' || end <= beg + 1) |
c7332b08 ZJS |
155 | return 0; |
156 | ||
157 | _lang = strndup(beg + 1, end - beg - 1); | |
158 | if (!_lang) | |
159 | return -ENOMEM; | |
160 | ||
161 | *lang = _lang; | |
162 | return 1; | |
163 | } | |
164 | ||
baf167ee ZJS |
165 | static int catalog_entry_lang(const char* filename, int line, |
166 | const char* t, const char* deflang, char **lang) { | |
167 | size_t c; | |
168 | ||
169 | c = strlen(t); | |
170 | if (c == 0) { | |
171 | log_error("[%s:%u] Language too short.", filename, line); | |
172 | return -EINVAL; | |
173 | } | |
174 | if (c > 31) { | |
175 | log_error("[%s:%u] language too long.", filename, line); | |
176 | return -EINVAL; | |
177 | } | |
178 | ||
179 | if (deflang) { | |
180 | if (streq(t, deflang)) { | |
181 | log_warning("[%s:%u] language specified unnecessarily", | |
182 | filename, line); | |
183 | return 0; | |
184 | } else | |
185 | log_warning("[%s:%u] language differs from default for file", | |
186 | filename, line); | |
187 | } | |
188 | ||
189 | *lang = strdup(t); | |
190 | if (!*lang) | |
191 | return -ENOMEM; | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
844ec79b | 196 | int catalog_import_file(Hashmap *h, struct strbuf *sb, const char *path) { |
d4205751 LP |
197 | _cleanup_fclose_ FILE *f = NULL; |
198 | _cleanup_free_ char *payload = NULL; | |
199 | unsigned n = 0; | |
200 | sd_id128_t id; | |
c7332b08 | 201 | _cleanup_free_ char *deflang = NULL, *lang = NULL; |
d4205751 LP |
202 | bool got_id = false, empty_line = true; |
203 | int r; | |
204 | ||
205 | assert(h); | |
206 | assert(sb); | |
207 | assert(path); | |
208 | ||
209 | f = fopen(path, "re"); | |
4a62c710 MS |
210 | if (!f) |
211 | return log_error_errno(errno, "Failed to open file %s: %m", path); | |
d4205751 | 212 | |
c7332b08 ZJS |
213 | r = catalog_file_lang(path, &deflang); |
214 | if (r < 0) | |
56f64d95 | 215 | log_error_errno(errno, "Failed to determine language for file %s: %m", path); |
c7332b08 ZJS |
216 | if (r == 1) |
217 | log_debug("File %s has language %s.", path, deflang); | |
218 | ||
d4205751 LP |
219 | for (;;) { |
220 | char line[LINE_MAX]; | |
221 | size_t a, b, c; | |
222 | char *t; | |
223 | ||
224 | if (!fgets(line, sizeof(line), f)) { | |
225 | if (feof(f)) | |
226 | break; | |
227 | ||
56f64d95 | 228 | log_error_errno(errno, "Failed to read file %s: %m", path); |
d4205751 LP |
229 | return -errno; |
230 | } | |
231 | ||
232 | n++; | |
233 | ||
234 | truncate_nl(line); | |
235 | ||
236 | if (line[0] == 0) { | |
237 | empty_line = true; | |
238 | continue; | |
239 | } | |
240 | ||
d3b6d0c2 | 241 | if (strchr(COMMENTS "\n", line[0])) |
d4205751 LP |
242 | continue; |
243 | ||
244 | if (empty_line && | |
245 | strlen(line) >= 2+1+32 && | |
246 | line[0] == '-' && | |
247 | line[1] == '-' && | |
248 | line[2] == ' ' && | |
18cd5fe9 | 249 | (line[2+1+32] == ' ' || line[2+1+32] == '\0')) { |
d4205751 LP |
250 | |
251 | bool with_language; | |
252 | sd_id128_t jd; | |
253 | ||
254 | /* New entry */ | |
255 | ||
18cd5fe9 ZJS |
256 | with_language = line[2+1+32] != '\0'; |
257 | line[2+1+32] = '\0'; | |
d4205751 LP |
258 | |
259 | if (sd_id128_from_string(line + 2 + 1, &jd) >= 0) { | |
260 | ||
261 | if (got_id) { | |
c7332b08 | 262 | r = finish_item(h, sb, id, lang ?: deflang, payload); |
d4205751 LP |
263 | if (r < 0) |
264 | return r; | |
c7332b08 | 265 | |
97b11eed | 266 | lang = mfree(lang); |
d4205751 LP |
267 | } |
268 | ||
269 | if (with_language) { | |
270 | t = strstrip(line + 2 + 1 + 32 + 1); | |
271 | ||
baf167ee ZJS |
272 | r = catalog_entry_lang(path, n, t, deflang, &lang); |
273 | if (r < 0) | |
274 | return r; | |
c7332b08 | 275 | } |
d4205751 LP |
276 | |
277 | got_id = true; | |
278 | empty_line = false; | |
279 | id = jd; | |
280 | ||
281 | if (payload) | |
18cd5fe9 | 282 | payload[0] = '\0'; |
d4205751 LP |
283 | |
284 | continue; | |
285 | } | |
286 | } | |
287 | ||
288 | /* Payload */ | |
289 | if (!got_id) { | |
290 | log_error("[%s:%u] Got payload before ID.", path, n); | |
291 | return -EINVAL; | |
292 | } | |
293 | ||
294 | a = payload ? strlen(payload) : 0; | |
295 | b = strlen(line); | |
296 | ||
297 | c = a + (empty_line ? 1 : 0) + b + 1 + 1; | |
298 | t = realloc(payload, c); | |
299 | if (!t) | |
300 | return log_oom(); | |
301 | ||
302 | if (empty_line) { | |
303 | t[a] = '\n'; | |
304 | memcpy(t + a + 1, line, b); | |
305 | t[a+b+1] = '\n'; | |
306 | t[a+b+2] = 0; | |
307 | } else { | |
308 | memcpy(t + a, line, b); | |
309 | t[a+b] = '\n'; | |
310 | t[a+b+1] = 0; | |
311 | } | |
312 | ||
313 | payload = t; | |
314 | empty_line = false; | |
315 | } | |
316 | ||
317 | if (got_id) { | |
c7332b08 | 318 | r = finish_item(h, sb, id, lang ?: deflang, payload); |
d4205751 LP |
319 | if (r < 0) |
320 | return r; | |
321 | } | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
844ec79b ZJS |
326 | static long write_catalog(const char *database, Hashmap *h, struct strbuf *sb, |
327 | CatalogItem *items, size_t n) { | |
328 | CatalogHeader header; | |
329 | _cleanup_fclose_ FILE *w = NULL; | |
330 | int r; | |
7fd1b19b | 331 | _cleanup_free_ char *d, *p = NULL; |
844ec79b ZJS |
332 | size_t k; |
333 | ||
334 | d = dirname_malloc(database); | |
335 | if (!d) | |
336 | return log_oom(); | |
337 | ||
338 | r = mkdir_p(d, 0775); | |
eb56eb9b MS |
339 | if (r < 0) |
340 | return log_error_errno(r, "Recursive mkdir %s: %m", d); | |
844ec79b ZJS |
341 | |
342 | r = fopen_temporary(database, &w, &p); | |
eb56eb9b MS |
343 | if (r < 0) |
344 | return log_error_errno(r, "Failed to open database for writing: %s: %m", | |
345 | database); | |
844ec79b ZJS |
346 | |
347 | zero(header); | |
348 | memcpy(header.signature, CATALOG_SIGNATURE, sizeof(header.signature)); | |
349 | header.header_size = htole64(ALIGN_TO(sizeof(CatalogHeader), 8)); | |
350 | header.catalog_item_size = htole64(sizeof(CatalogItem)); | |
351 | header.n_items = htole64(hashmap_size(h)); | |
80343dc1 | 352 | |
844ec79b ZJS |
353 | r = -EIO; |
354 | ||
355 | k = fwrite(&header, 1, sizeof(header), w); | |
356 | if (k != sizeof(header)) { | |
357 | log_error("%s: failed to write header.", p); | |
358 | goto error; | |
359 | } | |
360 | ||
361 | k = fwrite(items, 1, n * sizeof(CatalogItem), w); | |
362 | if (k != n * sizeof(CatalogItem)) { | |
363 | log_error("%s: failed to write database.", p); | |
364 | goto error; | |
365 | } | |
366 | ||
367 | k = fwrite(sb->buf, 1, sb->len, w); | |
368 | if (k != sb->len) { | |
369 | log_error("%s: failed to write strings.", p); | |
370 | goto error; | |
371 | } | |
372 | ||
dacd6cee LP |
373 | r = fflush_and_check(w); |
374 | if (r < 0) { | |
375 | log_error_errno(r, "%s: failed to write database: %m", p); | |
844ec79b ZJS |
376 | goto error; |
377 | } | |
378 | ||
379 | fchmod(fileno(w), 0644); | |
380 | ||
381 | if (rename(p, database) < 0) { | |
dacd6cee | 382 | r = log_error_errno(errno, "rename (%s -> %s) failed: %m", p, database); |
844ec79b ZJS |
383 | goto error; |
384 | } | |
385 | ||
386 | return ftell(w); | |
387 | ||
388 | error: | |
dacd6cee | 389 | (void) unlink(p); |
844ec79b ZJS |
390 | return r; |
391 | } | |
392 | ||
393 | int catalog_update(const char* database, const char* root, const char* const* dirs) { | |
d4205751 | 394 | _cleanup_strv_free_ char **files = NULL; |
d4205751 | 395 | char **f; |
d4205751 | 396 | struct strbuf *sb = NULL; |
e3b9d9c8 | 397 | _cleanup_hashmap_free_free_ Hashmap *h = NULL; |
d4205751 LP |
398 | _cleanup_free_ CatalogItem *items = NULL; |
399 | CatalogItem *i; | |
d4205751 LP |
400 | Iterator j; |
401 | unsigned n; | |
844ec79b | 402 | long r; |
d4205751 | 403 | |
d5099efc | 404 | h = hashmap_new(&catalog_hash_ops); |
d4205751 | 405 | sb = strbuf_new(); |
844ec79b ZJS |
406 | |
407 | if (!h || !sb) { | |
d4205751 LP |
408 | r = log_oom(); |
409 | goto finish; | |
410 | } | |
411 | ||
844ec79b | 412 | r = conf_files_list_strv(&files, ".catalog", root, dirs); |
d4205751 | 413 | if (r < 0) { |
da927ba9 | 414 | log_error_errno(r, "Failed to get catalog files: %m"); |
d4205751 LP |
415 | goto finish; |
416 | } | |
417 | ||
418 | STRV_FOREACH(f, files) { | |
e3b9d9c8 ZJS |
419 | log_debug("Reading file '%s'", *f); |
420 | r = catalog_import_file(h, sb, *f); | |
421 | if (r < 0) { | |
e53fc357 | 422 | log_error_errno(r, "Failed to import file '%s': %m", *f); |
e3b9d9c8 ZJS |
423 | goto finish; |
424 | } | |
d4205751 LP |
425 | } |
426 | ||
427 | if (hashmap_size(h) <= 0) { | |
428 | log_info("No items in catalog."); | |
d4205751 | 429 | goto finish; |
80343dc1 ZJS |
430 | } else |
431 | log_debug("Found %u items in catalog.", hashmap_size(h)); | |
d4205751 LP |
432 | |
433 | strbuf_complete(sb); | |
434 | ||
435 | items = new(CatalogItem, hashmap_size(h)); | |
436 | if (!items) { | |
437 | r = log_oom(); | |
438 | goto finish; | |
439 | } | |
440 | ||
441 | n = 0; | |
442 | HASHMAP_FOREACH(i, h, j) { | |
18cd5fe9 ZJS |
443 | log_debug("Found " SD_ID128_FORMAT_STR ", language %s", |
444 | SD_ID128_FORMAT_VAL(i->id), | |
445 | isempty(i->language) ? "C" : i->language); | |
d4205751 LP |
446 | items[n++] = *i; |
447 | } | |
448 | ||
449 | assert(n == hashmap_size(h)); | |
7ff7394d | 450 | qsort_safe(items, n, sizeof(CatalogItem), catalog_compare_func); |
d4205751 | 451 | |
844ec79b ZJS |
452 | r = write_catalog(database, h, sb, items, n); |
453 | if (r < 0) | |
da927ba9 | 454 | log_error_errno(r, "Failed to write %s: %m", database); |
844ec79b ZJS |
455 | else |
456 | log_debug("%s: wrote %u items, with %zu bytes of strings, %ld total size.", | |
457 | database, n, sb->len, r); | |
d4205751 | 458 | |
d4205751 | 459 | finish: |
d4205751 LP |
460 | if (sb) |
461 | strbuf_cleanup(sb); | |
462 | ||
844ec79b | 463 | return r < 0 ? r : 0; |
d4205751 LP |
464 | } |
465 | ||
844ec79b | 466 | static int open_mmap(const char *database, int *_fd, struct stat *_st, void **_p) { |
d4205751 LP |
467 | const CatalogHeader *h; |
468 | int fd; | |
469 | void *p; | |
470 | struct stat st; | |
471 | ||
472 | assert(_fd); | |
473 | assert(_st); | |
474 | assert(_p); | |
475 | ||
844ec79b | 476 | fd = open(database, O_RDONLY|O_CLOEXEC); |
d4205751 LP |
477 | if (fd < 0) |
478 | return -errno; | |
479 | ||
480 | if (fstat(fd, &st) < 0) { | |
03e334a1 | 481 | safe_close(fd); |
d4205751 LP |
482 | return -errno; |
483 | } | |
484 | ||
485 | if (st.st_size < (off_t) sizeof(CatalogHeader)) { | |
03e334a1 | 486 | safe_close(fd); |
d4205751 LP |
487 | return -EINVAL; |
488 | } | |
489 | ||
490 | p = mmap(NULL, PAGE_ALIGN(st.st_size), PROT_READ, MAP_SHARED, fd, 0); | |
491 | if (p == MAP_FAILED) { | |
03e334a1 | 492 | safe_close(fd); |
d4205751 LP |
493 | return -errno; |
494 | } | |
495 | ||
496 | h = p; | |
497 | if (memcmp(h->signature, CATALOG_SIGNATURE, sizeof(h->signature)) != 0 || | |
83f6936a LP |
498 | le64toh(h->header_size) < sizeof(CatalogHeader) || |
499 | le64toh(h->catalog_item_size) < sizeof(CatalogItem) || | |
d4205751 | 500 | h->incompatible_flags != 0 || |
83f6936a LP |
501 | le64toh(h->n_items) <= 0 || |
502 | st.st_size < (off_t) (le64toh(h->header_size) + le64toh(h->catalog_item_size) * le64toh(h->n_items))) { | |
03e334a1 | 503 | safe_close(fd); |
d4205751 LP |
504 | munmap(p, st.st_size); |
505 | return -EBADMSG; | |
506 | } | |
507 | ||
508 | *_fd = fd; | |
509 | *_st = st; | |
510 | *_p = p; | |
511 | ||
512 | return 0; | |
513 | } | |
514 | ||
515 | static const char *find_id(void *p, sd_id128_t id) { | |
516 | CatalogItem key, *f = NULL; | |
517 | const CatalogHeader *h = p; | |
518 | const char *loc; | |
519 | ||
520 | zero(key); | |
521 | key.id = id; | |
522 | ||
523 | loc = setlocale(LC_MESSAGES, NULL); | |
524 | if (loc && loc[0] && !streq(loc, "C") && !streq(loc, "POSIX")) { | |
525 | strncpy(key.language, loc, sizeof(key.language)); | |
526 | key.language[strcspn(key.language, ".@")] = 0; | |
527 | ||
83f6936a | 528 | f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func); |
d4205751 LP |
529 | if (!f) { |
530 | char *e; | |
531 | ||
532 | e = strchr(key.language, '_'); | |
533 | if (e) { | |
534 | *e = 0; | |
83f6936a | 535 | f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func); |
d4205751 LP |
536 | } |
537 | } | |
538 | } | |
539 | ||
540 | if (!f) { | |
541 | zero(key.language); | |
83f6936a | 542 | f = bsearch(&key, (const uint8_t*) p + le64toh(h->header_size), le64toh(h->n_items), le64toh(h->catalog_item_size), catalog_compare_func); |
d4205751 LP |
543 | } |
544 | ||
545 | if (!f) | |
546 | return NULL; | |
547 | ||
548 | return (const char*) p + | |
83f6936a LP |
549 | le64toh(h->header_size) + |
550 | le64toh(h->n_items) * le64toh(h->catalog_item_size) + | |
551 | le64toh(f->offset); | |
d4205751 LP |
552 | } |
553 | ||
844ec79b | 554 | int catalog_get(const char* database, sd_id128_t id, char **_text) { |
d4205751 LP |
555 | _cleanup_close_ int fd = -1; |
556 | void *p = NULL; | |
a7f7d1bd | 557 | struct stat st = {}; |
d4205751 LP |
558 | char *text = NULL; |
559 | int r; | |
560 | const char *s; | |
561 | ||
562 | assert(_text); | |
563 | ||
844ec79b | 564 | r = open_mmap(database, &fd, &st, &p); |
d4205751 LP |
565 | if (r < 0) |
566 | return r; | |
567 | ||
568 | s = find_id(p, id); | |
569 | if (!s) { | |
570 | r = -ENOENT; | |
571 | goto finish; | |
572 | } | |
573 | ||
574 | text = strdup(s); | |
575 | if (!text) { | |
576 | r = -ENOMEM; | |
577 | goto finish; | |
578 | } | |
579 | ||
580 | *_text = text; | |
581 | r = 0; | |
582 | ||
583 | finish: | |
584 | if (p) | |
585 | munmap(p, st.st_size); | |
586 | ||
587 | return r; | |
588 | } | |
589 | ||
590 | static char *find_header(const char *s, const char *header) { | |
591 | ||
592 | for (;;) { | |
593 | const char *v, *e; | |
594 | ||
595 | v = startswith(s, header); | |
596 | if (v) { | |
597 | v += strspn(v, WHITESPACE); | |
598 | return strndup(v, strcspn(v, NEWLINE)); | |
599 | } | |
600 | ||
601 | /* End of text */ | |
602 | e = strchr(s, '\n'); | |
603 | if (!e) | |
604 | return NULL; | |
605 | ||
606 | /* End of header */ | |
607 | if (e == s) | |
608 | return NULL; | |
609 | ||
610 | s = e + 1; | |
611 | } | |
612 | } | |
613 | ||
54b7254c ZJS |
614 | static void dump_catalog_entry(FILE *f, sd_id128_t id, const char *s, bool oneline) { |
615 | if (oneline) { | |
616 | _cleanup_free_ char *subject = NULL, *defined_by = NULL; | |
617 | ||
618 | subject = find_header(s, "Subject:"); | |
619 | defined_by = find_header(s, "Defined-By:"); | |
620 | ||
621 | fprintf(f, SD_ID128_FORMAT_STR " %s: %s\n", | |
622 | SD_ID128_FORMAT_VAL(id), | |
623 | strna(defined_by), strna(subject)); | |
624 | } else | |
625 | fprintf(f, "-- " SD_ID128_FORMAT_STR "\n%s\n", | |
626 | SD_ID128_FORMAT_VAL(id), s); | |
627 | } | |
628 | ||
629 | ||
844ec79b | 630 | int catalog_list(FILE *f, const char *database, bool oneline) { |
d4205751 LP |
631 | _cleanup_close_ int fd = -1; |
632 | void *p = NULL; | |
633 | struct stat st; | |
634 | const CatalogHeader *h; | |
635 | const CatalogItem *items; | |
636 | int r; | |
637 | unsigned n; | |
638 | sd_id128_t last_id; | |
639 | bool last_id_set = false; | |
640 | ||
844ec79b | 641 | r = open_mmap(database, &fd, &st, &p); |
d4205751 LP |
642 | if (r < 0) |
643 | return r; | |
644 | ||
645 | h = p; | |
83f6936a | 646 | items = (const CatalogItem*) ((const uint8_t*) p + le64toh(h->header_size)); |
d4205751 | 647 | |
83f6936a | 648 | for (n = 0; n < le64toh(h->n_items); n++) { |
d4205751 | 649 | const char *s; |
d4205751 LP |
650 | |
651 | if (last_id_set && sd_id128_equal(last_id, items[n].id)) | |
652 | continue; | |
653 | ||
654 | assert_se(s = find_id(p, items[n].id)); | |
655 | ||
54b7254c | 656 | dump_catalog_entry(f, items[n].id, s, oneline); |
d4205751 LP |
657 | |
658 | last_id_set = true; | |
659 | last_id = items[n].id; | |
660 | } | |
661 | ||
662 | munmap(p, st.st_size); | |
663 | ||
664 | return 0; | |
665 | } | |
54b7254c | 666 | |
844ec79b | 667 | int catalog_list_items(FILE *f, const char *database, bool oneline, char **items) { |
54b7254c ZJS |
668 | char **item; |
669 | int r = 0; | |
670 | ||
671 | STRV_FOREACH(item, items) { | |
672 | sd_id128_t id; | |
673 | int k; | |
7fd1b19b | 674 | _cleanup_free_ char *msg = NULL; |
54b7254c ZJS |
675 | |
676 | k = sd_id128_from_string(*item, &id); | |
677 | if (k < 0) { | |
e53fc357 | 678 | log_error_errno(k, "Failed to parse id128 '%s': %m", *item); |
464264ac | 679 | if (r == 0) |
54b7254c ZJS |
680 | r = k; |
681 | continue; | |
682 | } | |
683 | ||
844ec79b | 684 | k = catalog_get(database, id, &msg); |
54b7254c | 685 | if (k < 0) { |
e53fc357 LP |
686 | log_full_errno(k == -ENOENT ? LOG_NOTICE : LOG_ERR, k, |
687 | "Failed to retrieve catalog entry for '%s': %m", *item); | |
464264ac | 688 | if (r == 0) |
54b7254c ZJS |
689 | r = k; |
690 | continue; | |
691 | } | |
692 | ||
693 | dump_catalog_entry(f, id, msg, oneline); | |
694 | } | |
695 | ||
696 | return r; | |
697 | } |