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Commit | Line | Data |
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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
7e8d5761 LP |
2 | |
3 | #include <errno.h> | |
7e8d5761 | 4 | #include <getopt.h> |
ce30c8dc | 5 | #include <sys/prctl.h> |
3f6fd1ba | 6 | #include <unistd.h> |
7e8d5761 | 7 | |
b5efdb8a | 8 | #include "alloc-util.h" |
a0956174 | 9 | #include "dirent-util.h" |
3ffd4af2 | 10 | #include "fd-util.h" |
f4f15635 | 11 | #include "fs-util.h" |
7e8d5761 | 12 | #include "hashmap.h" |
8752c575 | 13 | #include "locale-util.h" |
7e8d5761 | 14 | #include "log.h" |
7280b076 | 15 | #include "main-func.h" |
d8b4d14d | 16 | #include "nulstr-util.h" |
7e8d5761 | 17 | #include "pager.h" |
c3470872 | 18 | #include "parse-argument.h" |
6bedfcbb | 19 | #include "parse-util.h" |
3f6fd1ba | 20 | #include "path-util.h" |
294bf0c3 | 21 | #include "pretty-print.h" |
0b452006 | 22 | #include "process-util.h" |
ce30c8dc | 23 | #include "signal-util.h" |
8fcde012 | 24 | #include "stat-util.h" |
07630cea | 25 | #include "string-util.h" |
3f6fd1ba LP |
26 | #include "strv.h" |
27 | #include "terminal-util.h" | |
7e8d5761 | 28 | |
f939e9a4 ZJS |
29 | static const char prefixes[] = |
30 | "/etc\0" | |
31 | "/run\0" | |
32 | "/usr/local/lib\0" | |
33 | "/usr/local/share\0" | |
34 | "/usr/lib\0" | |
35 | "/usr/share\0" | |
349cc4a5 | 36 | #if HAVE_SPLIT_USR |
f939e9a4 ZJS |
37 | "/lib\0" |
38 | #endif | |
39 | ; | |
40 | ||
41 | static const char suffixes[] = | |
42 | "sysctl.d\0" | |
43 | "tmpfiles.d\0" | |
44 | "modules-load.d\0" | |
45 | "binfmt.d\0" | |
46 | "systemd/system\0" | |
47 | "systemd/user\0" | |
48 | "systemd/system-preset\0" | |
49 | "systemd/user-preset\0" | |
50 | "udev/rules.d\0" | |
51 | "modprobe.d\0"; | |
52 | ||
53 | static const char have_dropins[] = | |
54 | "systemd/system\0" | |
55 | "systemd/user\0"; | |
56 | ||
0221d68a | 57 | static PagerFlags arg_pager_flags = 0; |
866062b1 | 58 | static int arg_diff = -1; |
7e8d5761 | 59 | |
866062b1 | 60 | static enum { |
ef31828d | 61 | SHOW_MASKED = 1 << 0, |
c8021373 LP |
62 | SHOW_EQUIVALENT = 1 << 1, |
63 | SHOW_REDIRECTED = 1 << 2, | |
386da858 | 64 | SHOW_OVERRIDDEN = 1 << 3, |
ef31828d LP |
65 | SHOW_UNCHANGED = 1 << 4, |
66 | SHOW_EXTENDED = 1 << 5, | |
4c4e6431 LP |
67 | |
68 | SHOW_DEFAULTS = | |
0000ce05 | 69 | (SHOW_MASKED | SHOW_EQUIVALENT | SHOW_REDIRECTED | SHOW_OVERRIDDEN | SHOW_EXTENDED) |
866062b1 | 70 | } arg_flags = 0; |
4c4e6431 | 71 | |
7e8d5761 | 72 | static int equivalent(const char *a, const char *b) { |
e26970a8 | 73 | _cleanup_free_ char *x = NULL, *y = NULL; |
e1873695 | 74 | int r; |
7e8d5761 | 75 | |
a5648b80 | 76 | r = chase_symlinks(a, NULL, CHASE_TRAIL_SLASH, &x, NULL); |
e1873695 LP |
77 | if (r < 0) |
78 | return r; | |
7e8d5761 | 79 | |
a5648b80 | 80 | r = chase_symlinks(b, NULL, CHASE_TRAIL_SLASH, &y, NULL); |
e1873695 LP |
81 | if (r < 0) |
82 | return r; | |
7e8d5761 | 83 | |
e26970a8 | 84 | return path_equal(x, y); |
7e8d5761 LP |
85 | } |
86 | ||
866062b1 LP |
87 | static int notify_override_masked(const char *top, const char *bottom) { |
88 | if (!(arg_flags & SHOW_MASKED)) | |
807f4645 GN |
89 | return 0; |
90 | ||
00a5cc3a | 91 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 92 | ansi_highlight_red(), "[MASKED]", ansi_normal(), |
9a6f746f | 93 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
94 | return 1; |
95 | } | |
96 | ||
866062b1 LP |
97 | static int notify_override_equivalent(const char *top, const char *bottom) { |
98 | if (!(arg_flags & SHOW_EQUIVALENT)) | |
807f4645 GN |
99 | return 0; |
100 | ||
00a5cc3a | 101 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 102 | ansi_highlight_green(), "[EQUIVALENT]", ansi_normal(), |
9a6f746f | 103 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
104 | return 1; |
105 | } | |
106 | ||
866062b1 LP |
107 | static int notify_override_redirected(const char *top, const char *bottom) { |
108 | if (!(arg_flags & SHOW_REDIRECTED)) | |
807f4645 GN |
109 | return 0; |
110 | ||
9b6e0ce5 | 111 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 112 | ansi_highlight(), "[REDIRECTED]", ansi_normal(), |
9a6f746f | 113 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
114 | return 1; |
115 | } | |
116 | ||
386da858 NM |
117 | static int notify_override_overridden(const char *top, const char *bottom) { |
118 | if (!(arg_flags & SHOW_OVERRIDDEN)) | |
807f4645 GN |
119 | return 0; |
120 | ||
00a5cc3a | 121 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 122 | ansi_highlight(), "[OVERRIDDEN]", ansi_normal(), |
9a6f746f | 123 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
124 | return 1; |
125 | } | |
126 | ||
0000ce05 LN |
127 | static int notify_override_extended(const char *top, const char *bottom) { |
128 | if (!(arg_flags & SHOW_EXTENDED)) | |
129 | return 0; | |
130 | ||
00a5cc3a | 131 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 132 | ansi_highlight(), "[EXTENDED]", ansi_normal(), |
9a6f746f | 133 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
0000ce05 LN |
134 | return 1; |
135 | } | |
136 | ||
866062b1 LP |
137 | static int notify_override_unchanged(const char *f) { |
138 | if (!(arg_flags & SHOW_UNCHANGED)) | |
807f4645 GN |
139 | return 0; |
140 | ||
8e812a23 | 141 | printf("[UNCHANGED] %s\n", f); |
807f4645 GN |
142 | return 1; |
143 | } | |
144 | ||
866062b1 | 145 | static int found_override(const char *top, const char *bottom) { |
e26970a8 | 146 | _cleanup_free_ char *dest = NULL; |
7e8d5761 | 147 | pid_t pid; |
4c253ed1 | 148 | int r; |
7e8d5761 LP |
149 | |
150 | assert(top); | |
151 | assert(bottom); | |
152 | ||
8fd57568 ZJS |
153 | if (null_or_empty_path(top) > 0) |
154 | return notify_override_masked(top, bottom); | |
7e8d5761 | 155 | |
4c253ed1 LP |
156 | r = readlink_malloc(top, &dest); |
157 | if (r >= 0) { | |
7e8d5761 | 158 | if (equivalent(dest, bottom) > 0) |
8fd57568 | 159 | return notify_override_equivalent(top, bottom); |
7e8d5761 | 160 | else |
8fd57568 | 161 | return notify_override_redirected(top, bottom); |
7e8d5761 LP |
162 | } |
163 | ||
4c253ed1 | 164 | r = notify_override_overridden(top, bottom); |
866062b1 | 165 | if (!arg_diff) |
4c253ed1 | 166 | return r; |
7e8d5761 LP |
167 | |
168 | putchar('\n'); | |
169 | ||
170 | fflush(stdout); | |
171 | ||
0672e2c6 | 172 | r = safe_fork("(diff)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_CLOSE_ALL_FDS|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG, &pid); |
4c253ed1 | 173 | if (r < 0) |
b6e1fff1 | 174 | return r; |
4c253ed1 | 175 | if (r == 0) { |
7e8d5761 | 176 | execlp("diff", "diff", "-us", "--", bottom, top, NULL); |
0b1f3c76 | 177 | log_open(); |
56f64d95 | 178 | log_error_errno(errno, "Failed to execute diff: %m"); |
ce30c8dc | 179 | _exit(EXIT_FAILURE); |
7e8d5761 LP |
180 | } |
181 | ||
7d4904fe | 182 | (void) wait_for_terminate_and_check("diff", pid, WAIT_LOG_ABNORMAL); |
7e8d5761 LP |
183 | putchar('\n'); |
184 | ||
4c253ed1 | 185 | return r; |
7e8d5761 LP |
186 | } |
187 | ||
9f5ebb8a ZJS |
188 | static int enumerate_dir_d( |
189 | OrderedHashmap *top, | |
190 | OrderedHashmap *bottom, | |
191 | OrderedHashmap *drops, | |
192 | const char *toppath, const char *drop) { | |
193 | ||
f939e9a4 | 194 | _cleanup_free_ char *unit = NULL; |
0000ce05 LN |
195 | _cleanup_free_ char *path = NULL; |
196 | _cleanup_strv_free_ char **list = NULL; | |
197 | char **file; | |
198 | char *c; | |
199 | int r; | |
200 | ||
f939e9a4 ZJS |
201 | assert(!endswith(drop, "/")); |
202 | ||
657ee2d8 | 203 | path = path_join(toppath, drop); |
0000ce05 LN |
204 | if (!path) |
205 | return -ENOMEM; | |
206 | ||
f939e9a4 | 207 | log_debug("Looking at %s", path); |
0000ce05 | 208 | |
f939e9a4 ZJS |
209 | unit = strdup(drop); |
210 | if (!unit) | |
0000ce05 LN |
211 | return -ENOMEM; |
212 | ||
f939e9a4 | 213 | c = strrchr(unit, '.'); |
0000ce05 LN |
214 | if (!c) |
215 | return -EINVAL; | |
216 | *c = 0; | |
217 | ||
218 | r = get_files_in_directory(path, &list); | |
23bbb0de MS |
219 | if (r < 0) |
220 | return log_error_errno(r, "Failed to enumerate %s: %m", path); | |
0000ce05 | 221 | |
9f5ebb8a ZJS |
222 | strv_sort(list); |
223 | ||
0000ce05 | 224 | STRV_FOREACH(file, list) { |
9f5ebb8a | 225 | OrderedHashmap *h; |
0000ce05 LN |
226 | int k; |
227 | char *p; | |
228 | char *d; | |
229 | ||
230 | if (!endswith(*file, ".conf")) | |
231 | continue; | |
232 | ||
657ee2d8 | 233 | p = path_join(path, *file); |
0000ce05 LN |
234 | if (!p) |
235 | return -ENOMEM; | |
f939e9a4 | 236 | d = p + strlen(toppath) + 1; |
0000ce05 | 237 | |
9a6f746f | 238 | log_debug("Adding at top: %s %s %s", d, special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a | 239 | k = ordered_hashmap_put(top, d, p); |
0000ce05 LN |
240 | if (k >= 0) { |
241 | p = strdup(p); | |
242 | if (!p) | |
243 | return -ENOMEM; | |
f939e9a4 | 244 | d = p + strlen(toppath) + 1; |
0000ce05 LN |
245 | } else if (k != -EEXIST) { |
246 | free(p); | |
247 | return k; | |
248 | } | |
249 | ||
9a6f746f | 250 | log_debug("Adding at bottom: %s %s %s", d, special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a ZJS |
251 | free(ordered_hashmap_remove(bottom, d)); |
252 | k = ordered_hashmap_put(bottom, d, p); | |
0000ce05 LN |
253 | if (k < 0) { |
254 | free(p); | |
255 | return k; | |
256 | } | |
257 | ||
9f5ebb8a | 258 | h = ordered_hashmap_get(drops, unit); |
0000ce05 | 259 | if (!h) { |
9f5ebb8a | 260 | h = ordered_hashmap_new(&string_hash_ops); |
0000ce05 LN |
261 | if (!h) |
262 | return -ENOMEM; | |
9f5ebb8a | 263 | ordered_hashmap_put(drops, unit, h); |
f939e9a4 ZJS |
264 | unit = strdup(unit); |
265 | if (!unit) | |
0000ce05 LN |
266 | return -ENOMEM; |
267 | } | |
268 | ||
269 | p = strdup(p); | |
270 | if (!p) | |
271 | return -ENOMEM; | |
272 | ||
00a5cc3a | 273 | log_debug("Adding to drops: %s %s %s %s %s", |
9a6f746f | 274 | unit, special_glyph(SPECIAL_GLYPH_ARROW), basename(p), special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a | 275 | k = ordered_hashmap_put(h, basename(p), p); |
0000ce05 LN |
276 | if (k < 0) { |
277 | free(p); | |
278 | if (k != -EEXIST) | |
279 | return k; | |
280 | } | |
281 | } | |
282 | return 0; | |
283 | } | |
284 | ||
9f5ebb8a ZJS |
285 | static int enumerate_dir( |
286 | OrderedHashmap *top, | |
287 | OrderedHashmap *bottom, | |
288 | OrderedHashmap *drops, | |
289 | const char *path, bool dropins) { | |
290 | ||
291 | _cleanup_closedir_ DIR *d = NULL; | |
8fb3f009 | 292 | struct dirent *de; |
9f5ebb8a | 293 | _cleanup_strv_free_ char **files = NULL, **dirs = NULL; |
319a4f4b | 294 | size_t n_files = 0, n_dirs = 0; |
9f5ebb8a ZJS |
295 | char **t; |
296 | int r; | |
7e8d5761 LP |
297 | |
298 | assert(top); | |
299 | assert(bottom); | |
0000ce05 | 300 | assert(drops); |
7e8d5761 LP |
301 | assert(path); |
302 | ||
f939e9a4 ZJS |
303 | log_debug("Looking at %s", path); |
304 | ||
7e8d5761 LP |
305 | d = opendir(path); |
306 | if (!d) { | |
307 | if (errno == ENOENT) | |
308 | return 0; | |
309 | ||
e1427b13 | 310 | return log_error_errno(errno, "Failed to open %s: %m", path); |
7e8d5761 LP |
311 | } |
312 | ||
8fb3f009 | 313 | FOREACH_DIRENT_ALL(de, d, return -errno) { |
9f5ebb8a | 314 | if (dropins && de->d_type == DT_DIR && endswith(de->d_name, ".d")) { |
319a4f4b | 315 | if (!GREEDY_REALLOC0(dirs, n_dirs + 2)) |
9f5ebb8a ZJS |
316 | return -ENOMEM; |
317 | ||
318 | dirs[n_dirs] = strdup(de->d_name); | |
319 | if (!dirs[n_dirs]) | |
320 | return -ENOMEM; | |
321 | n_dirs ++; | |
322 | } | |
0000ce05 | 323 | |
7e8d5761 LP |
324 | if (!dirent_is_file(de)) |
325 | continue; | |
326 | ||
319a4f4b | 327 | if (!GREEDY_REALLOC0(files, n_files + 2)) |
9f5ebb8a ZJS |
328 | return -ENOMEM; |
329 | ||
330 | files[n_files] = strdup(de->d_name); | |
331 | if (!files[n_files]) | |
332 | return -ENOMEM; | |
333 | n_files ++; | |
334 | } | |
335 | ||
336 | strv_sort(dirs); | |
337 | strv_sort(files); | |
338 | ||
339 | STRV_FOREACH(t, dirs) { | |
340 | r = enumerate_dir_d(top, bottom, drops, path, *t); | |
341 | if (r < 0) | |
342 | return r; | |
343 | } | |
344 | ||
345 | STRV_FOREACH(t, files) { | |
346 | _cleanup_free_ char *p = NULL; | |
347 | ||
657ee2d8 | 348 | p = path_join(path, *t); |
e26970a8 TA |
349 | if (!p) |
350 | return -ENOMEM; | |
7e8d5761 | 351 | |
9a6f746f | 352 | log_debug("Adding at top: %s %s %s", basename(p), special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a ZJS |
353 | r = ordered_hashmap_put(top, basename(p), p); |
354 | if (r >= 0) { | |
7e8d5761 | 355 | p = strdup(p); |
e26970a8 TA |
356 | if (!p) |
357 | return -ENOMEM; | |
9f5ebb8a ZJS |
358 | } else if (r != -EEXIST) |
359 | return r; | |
7e8d5761 | 360 | |
9a6f746f | 361 | log_debug("Adding at bottom: %s %s %s", basename(p), special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a ZJS |
362 | free(ordered_hashmap_remove(bottom, basename(p))); |
363 | r = ordered_hashmap_put(bottom, basename(p), p); | |
364 | if (r < 0) | |
365 | return r; | |
366 | p = NULL; | |
7e8d5761 | 367 | } |
9f5ebb8a | 368 | |
8fb3f009 | 369 | return 0; |
7e8d5761 LP |
370 | } |
371 | ||
6d946490 | 372 | static int should_skip_path(const char *prefix, const char *suffix) { |
349cc4a5 | 373 | #if HAVE_SPLIT_USR |
b05422a8 | 374 | _cleanup_free_ char *target = NULL; |
270384b2 | 375 | const char *dirname, *p; |
b05422a8 | 376 | |
270384b2 | 377 | dirname = prefix_roota(prefix, suffix); |
b05422a8 | 378 | |
a5648b80 | 379 | if (chase_symlinks(dirname, NULL, 0, &target, NULL) < 0) |
4cc893e7 FB |
380 | return false; |
381 | ||
382 | NULSTR_FOREACH(p, prefixes) { | |
6d946490 YW |
383 | _cleanup_free_ char *tmp = NULL; |
384 | ||
4cc893e7 FB |
385 | if (path_startswith(dirname, p)) |
386 | continue; | |
387 | ||
6d946490 YW |
388 | tmp = path_join(p, suffix); |
389 | if (!tmp) | |
390 | return -ENOMEM; | |
391 | ||
392 | if (path_equal(target, tmp)) { | |
4cc893e7 FB |
393 | log_debug("%s redirects to %s, skipping.", dirname, target); |
394 | return true; | |
395 | } | |
396 | } | |
b05422a8 | 397 | #endif |
4cc893e7 | 398 | return false; |
b05422a8 FS |
399 | } |
400 | ||
6096dfd6 | 401 | static int process_suffix(const char *suffix, const char *onlyprefix) { |
7e8d5761 | 402 | const char *p; |
90e74a66 ZJS |
403 | char *f, *key; |
404 | OrderedHashmap *top, *bottom, *drops, *h; | |
405 | int r = 0, k, n_found = 0; | |
f939e9a4 | 406 | bool dropins; |
7e8d5761 | 407 | |
7e8d5761 | 408 | assert(suffix); |
f939e9a4 ZJS |
409 | assert(!startswith(suffix, "/")); |
410 | assert(!strstr(suffix, "//")); | |
7e8d5761 | 411 | |
f939e9a4 | 412 | dropins = nulstr_contains(have_dropins, suffix); |
7e8d5761 | 413 | |
9f5ebb8a ZJS |
414 | top = ordered_hashmap_new(&string_hash_ops); |
415 | bottom = ordered_hashmap_new(&string_hash_ops); | |
416 | drops = ordered_hashmap_new(&string_hash_ops); | |
f939e9a4 | 417 | if (!top || !bottom || !drops) { |
0000ce05 LN |
418 | r = -ENOMEM; |
419 | goto finish; | |
420 | } | |
421 | ||
7e8d5761 | 422 | NULSTR_FOREACH(p, prefixes) { |
e26970a8 | 423 | _cleanup_free_ char *t = NULL; |
b05422a8 | 424 | |
6d946490 | 425 | if (should_skip_path(p, suffix) > 0) |
b05422a8 | 426 | continue; |
7e8d5761 | 427 | |
657ee2d8 | 428 | t = path_join(p, suffix); |
7e8d5761 LP |
429 | if (!t) { |
430 | r = -ENOMEM; | |
431 | goto finish; | |
432 | } | |
433 | ||
0000ce05 | 434 | k = enumerate_dir(top, bottom, drops, t, dropins); |
f939e9a4 | 435 | if (r == 0) |
7e8d5761 | 436 | r = k; |
7e8d5761 LP |
437 | } |
438 | ||
90e74a66 | 439 | ORDERED_HASHMAP_FOREACH_KEY(f, key, top) { |
7e8d5761 LP |
440 | char *o; |
441 | ||
9f5ebb8a | 442 | o = ordered_hashmap_get(bottom, key); |
7e8d5761 LP |
443 | assert(o); |
444 | ||
6096dfd6 ZJS |
445 | if (!onlyprefix || startswith(o, onlyprefix)) { |
446 | if (path_equal(o, f)) { | |
447 | notify_override_unchanged(f); | |
448 | } else { | |
449 | k = found_override(f, o); | |
450 | if (k < 0) | |
451 | r = k; | |
452 | else | |
453 | n_found += k; | |
454 | } | |
807f4645 | 455 | } |
7e8d5761 | 456 | |
9f5ebb8a | 457 | h = ordered_hashmap_get(drops, key); |
0000ce05 | 458 | if (h) |
90e74a66 | 459 | ORDERED_HASHMAP_FOREACH(o, h) |
6096dfd6 ZJS |
460 | if (!onlyprefix || startswith(o, onlyprefix)) |
461 | n_found += notify_override_extended(f, o); | |
7e8d5761 LP |
462 | } |
463 | ||
464 | finish: | |
9f5ebb8a ZJS |
465 | ordered_hashmap_free_free(top); |
466 | ordered_hashmap_free_free(bottom); | |
82376245 | 467 | |
90e74a66 | 468 | ORDERED_HASHMAP_FOREACH_KEY(h, key, drops) { |
9f5ebb8a ZJS |
469 | ordered_hashmap_free_free(ordered_hashmap_remove(drops, key)); |
470 | ordered_hashmap_remove(drops, key); | |
82376245 | 471 | free(key); |
0000ce05 | 472 | } |
9f5ebb8a | 473 | ordered_hashmap_free(drops); |
82376245 | 474 | |
7e8d5761 LP |
475 | return r < 0 ? r : n_found; |
476 | } | |
477 | ||
6096dfd6 ZJS |
478 | static int process_suffixes(const char *onlyprefix) { |
479 | const char *n; | |
480 | int n_found = 0, r; | |
481 | ||
482 | NULSTR_FOREACH(n, suffixes) { | |
483 | r = process_suffix(n, onlyprefix); | |
484 | if (r < 0) | |
485 | return r; | |
82376245 LP |
486 | |
487 | n_found += r; | |
6096dfd6 | 488 | } |
82376245 | 489 | |
6096dfd6 ZJS |
490 | return n_found; |
491 | } | |
492 | ||
493 | static int process_suffix_chop(const char *arg) { | |
7e8d5761 LP |
494 | const char *p; |
495 | ||
6096dfd6 | 496 | assert(arg); |
7e8d5761 | 497 | |
6096dfd6 ZJS |
498 | if (!path_is_absolute(arg)) |
499 | return process_suffix(arg, NULL); | |
7e8d5761 LP |
500 | |
501 | /* Strip prefix from the suffix */ | |
502 | NULSTR_FOREACH(p, prefixes) { | |
82376245 LP |
503 | const char *suffix; |
504 | ||
505 | suffix = startswith(arg, p); | |
6096dfd6 | 506 | if (suffix) { |
7e8d5761 | 507 | suffix += strspn(suffix, "/"); |
6096dfd6 | 508 | if (*suffix) |
a9d041fa | 509 | return process_suffix(suffix, p); |
6096dfd6 ZJS |
510 | else |
511 | return process_suffixes(arg); | |
7e8d5761 LP |
512 | } |
513 | } | |
514 | ||
baaa35ad ZJS |
515 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
516 | "Invalid suffix specification %s.", arg); | |
7e8d5761 LP |
517 | } |
518 | ||
37ec0fdd LP |
519 | static int help(void) { |
520 | _cleanup_free_ char *link = NULL; | |
521 | int r; | |
522 | ||
523 | r = terminal_urlify_man("systemd-delta", "1", &link); | |
524 | if (r < 0) | |
525 | return log_oom(); | |
526 | ||
7e8d5761 LP |
527 | printf("%s [OPTIONS...] [SUFFIX...]\n\n" |
528 | "Find overridden configuration files.\n\n" | |
529 | " -h --help Show this help\n" | |
530 | " --version Show package version\n" | |
807f4645 | 531 | " --no-pager Do not pipe output into a pager\n" |
386da858 | 532 | " --diff[=1|0] Show a diff when overridden files differ\n" |
601185b4 | 533 | " -t --type=LIST... Only display a selected set of override types\n" |
bc556335 DDM |
534 | "\nSee the %s for details.\n", |
535 | program_invocation_short_name, | |
536 | link); | |
37ec0fdd LP |
537 | |
538 | return 0; | |
7e8d5761 LP |
539 | } |
540 | ||
866062b1 | 541 | static int parse_flags(const char *flag_str, int flags) { |
cc24f0b8 ZJS |
542 | for (;;) { |
543 | _cleanup_free_ char *word = NULL; | |
544 | int r; | |
807f4645 | 545 | |
cc24f0b8 ZJS |
546 | r = extract_first_word(&flag_str, &word, ",", EXTRACT_DONT_COALESCE_SEPARATORS); |
547 | if (r < 0) | |
548 | return r; | |
549 | if (r == 0) | |
550 | return flags; | |
551 | ||
552 | if (streq(word, "masked")) | |
807f4645 | 553 | flags |= SHOW_MASKED; |
cc24f0b8 | 554 | else if (streq(word, "equivalent")) |
c8021373 | 555 | flags |= SHOW_EQUIVALENT; |
cc24f0b8 | 556 | else if (streq(word, "redirected")) |
c8021373 | 557 | flags |= SHOW_REDIRECTED; |
cc24f0b8 | 558 | else if (streq(word, "overridden")) |
386da858 | 559 | flags |= SHOW_OVERRIDDEN; |
cc24f0b8 | 560 | else if (streq(word, "unchanged")) |
807f4645 | 561 | flags |= SHOW_UNCHANGED; |
cc24f0b8 | 562 | else if (streq(word, "extended")) |
0000ce05 | 563 | flags |= SHOW_EXTENDED; |
cc24f0b8 | 564 | else if (streq(word, "default")) |
807f4645 | 565 | flags |= SHOW_DEFAULTS; |
866062b1 LP |
566 | else |
567 | return -EINVAL; | |
807f4645 | 568 | } |
807f4645 GN |
569 | } |
570 | ||
866062b1 | 571 | static int parse_argv(int argc, char *argv[]) { |
7e8d5761 LP |
572 | |
573 | enum { | |
574 | ARG_NO_PAGER = 0x100, | |
807f4645 | 575 | ARG_DIFF, |
7e8d5761 LP |
576 | ARG_VERSION |
577 | }; | |
578 | ||
579 | static const struct option options[] = { | |
580 | { "help", no_argument, NULL, 'h' }, | |
581 | { "version", no_argument, NULL, ARG_VERSION }, | |
582 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
807f4645 GN |
583 | { "diff", optional_argument, NULL, ARG_DIFF }, |
584 | { "type", required_argument, NULL, 't' }, | |
eb9da376 | 585 | {} |
7e8d5761 LP |
586 | }; |
587 | ||
c3470872 | 588 | int c, r; |
7e8d5761 LP |
589 | |
590 | assert(argc >= 1); | |
591 | assert(argv); | |
592 | ||
601185b4 | 593 | while ((c = getopt_long(argc, argv, "ht:", options, NULL)) >= 0) |
7e8d5761 LP |
594 | |
595 | switch (c) { | |
596 | ||
597 | case 'h': | |
37ec0fdd | 598 | return help(); |
7e8d5761 LP |
599 | |
600 | case ARG_VERSION: | |
3f6fd1ba | 601 | return version(); |
7e8d5761 LP |
602 | |
603 | case ARG_NO_PAGER: | |
0221d68a | 604 | arg_pager_flags |= PAGER_DISABLE; |
7e8d5761 LP |
605 | break; |
606 | ||
866062b1 LP |
607 | case 't': { |
608 | int f; | |
609 | f = parse_flags(optarg, arg_flags); | |
baaa35ad ZJS |
610 | if (f < 0) |
611 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
612 | "Failed to parse flags field."); | |
866062b1 | 613 | arg_flags = f; |
807f4645 | 614 | break; |
866062b1 | 615 | } |
807f4645 GN |
616 | |
617 | case ARG_DIFF: | |
c3470872 ZJS |
618 | r = parse_boolean_argument("--diff", optarg, NULL); |
619 | if (r < 0) | |
620 | return r; | |
621 | arg_diff = r; | |
807f4645 GN |
622 | break; |
623 | ||
eb9da376 | 624 | case '?': |
7e8d5761 | 625 | return -EINVAL; |
eb9da376 LP |
626 | |
627 | default: | |
04499a70 | 628 | assert_not_reached(); |
7e8d5761 | 629 | } |
7e8d5761 LP |
630 | |
631 | return 1; | |
632 | } | |
633 | ||
7280b076 | 634 | static int run(int argc, char *argv[]) { |
82376245 | 635 | int r, k, n_found = 0; |
7e8d5761 | 636 | |
d2acb93d | 637 | log_setup(); |
7e8d5761 | 638 | |
866062b1 | 639 | r = parse_argv(argc, argv); |
7e8d5761 | 640 | if (r <= 0) |
7280b076 | 641 | return r; |
7e8d5761 | 642 | |
866062b1 LP |
643 | if (arg_flags == 0) |
644 | arg_flags = SHOW_DEFAULTS; | |
645 | ||
646 | if (arg_diff < 0) | |
386da858 | 647 | arg_diff = !!(arg_flags & SHOW_OVERRIDDEN); |
866062b1 | 648 | else if (arg_diff) |
386da858 | 649 | arg_flags |= SHOW_OVERRIDDEN; |
807f4645 | 650 | |
0221d68a | 651 | (void) pager_open(arg_pager_flags); |
7e8d5761 LP |
652 | |
653 | if (optind < argc) { | |
654 | int i; | |
655 | ||
656 | for (i = optind; i < argc; i++) { | |
4ff361cc | 657 | path_simplify(argv[i]); |
82376245 | 658 | |
f939e9a4 | 659 | k = process_suffix_chop(argv[i]); |
7e8d5761 LP |
660 | if (k < 0) |
661 | r = k; | |
662 | else | |
663 | n_found += k; | |
664 | } | |
665 | ||
666 | } else { | |
6096dfd6 ZJS |
667 | k = process_suffixes(NULL); |
668 | if (k < 0) | |
669 | r = k; | |
670 | else | |
671 | n_found += k; | |
7e8d5761 LP |
672 | } |
673 | ||
674 | if (r >= 0) | |
82376245 | 675 | printf("%s%i overridden configuration files found.\n", n_found ? "\n" : "", n_found); |
7280b076 | 676 | return r; |
7e8d5761 | 677 | } |
7280b076 ZJS |
678 | |
679 | DEFINE_MAIN_FUNCTION(run); |