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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" |
d6b4d1c7 | 9 | #include "build.h" |
f461a28d | 10 | #include "chase.h" |
a0956174 | 11 | #include "dirent-util.h" |
3ffd4af2 | 12 | #include "fd-util.h" |
f4f15635 | 13 | #include "fs-util.h" |
d8e32c47 | 14 | #include "glyph-util.h" |
7e8d5761 | 15 | #include "hashmap.h" |
7e8d5761 | 16 | #include "log.h" |
7280b076 | 17 | #include "main-func.h" |
d8b4d14d | 18 | #include "nulstr-util.h" |
7e8d5761 | 19 | #include "pager.h" |
c3470872 | 20 | #include "parse-argument.h" |
6bedfcbb | 21 | #include "parse-util.h" |
3f6fd1ba | 22 | #include "path-util.h" |
294bf0c3 | 23 | #include "pretty-print.h" |
0b452006 | 24 | #include "process-util.h" |
ce30c8dc | 25 | #include "signal-util.h" |
8fcde012 | 26 | #include "stat-util.h" |
07630cea | 27 | #include "string-util.h" |
3f6fd1ba LP |
28 | #include "strv.h" |
29 | #include "terminal-util.h" | |
7e8d5761 | 30 | |
f939e9a4 ZJS |
31 | static const char prefixes[] = |
32 | "/etc\0" | |
33 | "/run\0" | |
34 | "/usr/local/lib\0" | |
35 | "/usr/local/share\0" | |
36 | "/usr/lib\0" | |
37 | "/usr/share\0" | |
349cc4a5 | 38 | #if HAVE_SPLIT_USR |
f939e9a4 ZJS |
39 | "/lib\0" |
40 | #endif | |
41 | ; | |
42 | ||
43 | static const char suffixes[] = | |
44 | "sysctl.d\0" | |
45 | "tmpfiles.d\0" | |
46 | "modules-load.d\0" | |
47 | "binfmt.d\0" | |
48 | "systemd/system\0" | |
49 | "systemd/user\0" | |
50 | "systemd/system-preset\0" | |
51 | "systemd/user-preset\0" | |
52 | "udev/rules.d\0" | |
53 | "modprobe.d\0"; | |
54 | ||
55 | static const char have_dropins[] = | |
56 | "systemd/system\0" | |
57 | "systemd/user\0"; | |
58 | ||
0221d68a | 59 | static PagerFlags arg_pager_flags = 0; |
866062b1 | 60 | static int arg_diff = -1; |
7e8d5761 | 61 | |
866062b1 | 62 | static enum { |
ef31828d | 63 | SHOW_MASKED = 1 << 0, |
c8021373 LP |
64 | SHOW_EQUIVALENT = 1 << 1, |
65 | SHOW_REDIRECTED = 1 << 2, | |
386da858 | 66 | SHOW_OVERRIDDEN = 1 << 3, |
ef31828d LP |
67 | SHOW_UNCHANGED = 1 << 4, |
68 | SHOW_EXTENDED = 1 << 5, | |
4c4e6431 LP |
69 | |
70 | SHOW_DEFAULTS = | |
0000ce05 | 71 | (SHOW_MASKED | SHOW_EQUIVALENT | SHOW_REDIRECTED | SHOW_OVERRIDDEN | SHOW_EXTENDED) |
866062b1 | 72 | } arg_flags = 0; |
4c4e6431 | 73 | |
7e8d5761 | 74 | static int equivalent(const char *a, const char *b) { |
e26970a8 | 75 | _cleanup_free_ char *x = NULL, *y = NULL; |
e1873695 | 76 | int r; |
7e8d5761 | 77 | |
f461a28d | 78 | r = chase(a, NULL, CHASE_TRAIL_SLASH, &x, NULL); |
e1873695 LP |
79 | if (r < 0) |
80 | return r; | |
7e8d5761 | 81 | |
f461a28d | 82 | r = chase(b, NULL, CHASE_TRAIL_SLASH, &y, NULL); |
e1873695 LP |
83 | if (r < 0) |
84 | return r; | |
7e8d5761 | 85 | |
e26970a8 | 86 | return path_equal(x, y); |
7e8d5761 LP |
87 | } |
88 | ||
866062b1 LP |
89 | static int notify_override_masked(const char *top, const char *bottom) { |
90 | if (!(arg_flags & SHOW_MASKED)) | |
807f4645 GN |
91 | return 0; |
92 | ||
00a5cc3a | 93 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 94 | ansi_highlight_red(), "[MASKED]", ansi_normal(), |
fc03e80c | 95 | top, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), bottom); |
807f4645 GN |
96 | return 1; |
97 | } | |
98 | ||
866062b1 LP |
99 | static int notify_override_equivalent(const char *top, const char *bottom) { |
100 | if (!(arg_flags & SHOW_EQUIVALENT)) | |
807f4645 GN |
101 | return 0; |
102 | ||
00a5cc3a | 103 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 104 | ansi_highlight_green(), "[EQUIVALENT]", ansi_normal(), |
fc03e80c | 105 | top, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), bottom); |
807f4645 GN |
106 | return 1; |
107 | } | |
108 | ||
866062b1 LP |
109 | static int notify_override_redirected(const char *top, const char *bottom) { |
110 | if (!(arg_flags & SHOW_REDIRECTED)) | |
807f4645 GN |
111 | return 0; |
112 | ||
9b6e0ce5 | 113 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 114 | ansi_highlight(), "[REDIRECTED]", ansi_normal(), |
fc03e80c | 115 | top, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), bottom); |
807f4645 GN |
116 | return 1; |
117 | } | |
118 | ||
386da858 NM |
119 | static int notify_override_overridden(const char *top, const char *bottom) { |
120 | if (!(arg_flags & SHOW_OVERRIDDEN)) | |
807f4645 GN |
121 | return 0; |
122 | ||
00a5cc3a | 123 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 124 | ansi_highlight(), "[OVERRIDDEN]", ansi_normal(), |
fc03e80c | 125 | top, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), bottom); |
807f4645 GN |
126 | return 1; |
127 | } | |
128 | ||
0000ce05 LN |
129 | static int notify_override_extended(const char *top, const char *bottom) { |
130 | if (!(arg_flags & SHOW_EXTENDED)) | |
131 | return 0; | |
132 | ||
00a5cc3a | 133 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 134 | ansi_highlight(), "[EXTENDED]", ansi_normal(), |
fc03e80c | 135 | top, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), bottom); |
0000ce05 LN |
136 | return 1; |
137 | } | |
138 | ||
866062b1 LP |
139 | static int notify_override_unchanged(const char *f) { |
140 | if (!(arg_flags & SHOW_UNCHANGED)) | |
807f4645 GN |
141 | return 0; |
142 | ||
8e812a23 | 143 | printf("[UNCHANGED] %s\n", f); |
807f4645 GN |
144 | return 1; |
145 | } | |
146 | ||
866062b1 | 147 | static int found_override(const char *top, const char *bottom) { |
e26970a8 | 148 | _cleanup_free_ char *dest = NULL; |
7e8d5761 | 149 | pid_t pid; |
4c253ed1 | 150 | int r; |
7e8d5761 LP |
151 | |
152 | assert(top); | |
153 | assert(bottom); | |
154 | ||
8fd57568 ZJS |
155 | if (null_or_empty_path(top) > 0) |
156 | return notify_override_masked(top, bottom); | |
7e8d5761 | 157 | |
4c253ed1 LP |
158 | r = readlink_malloc(top, &dest); |
159 | if (r >= 0) { | |
7e8d5761 | 160 | if (equivalent(dest, bottom) > 0) |
8fd57568 | 161 | return notify_override_equivalent(top, bottom); |
7e8d5761 | 162 | else |
8fd57568 | 163 | return notify_override_redirected(top, bottom); |
7e8d5761 LP |
164 | } |
165 | ||
4c253ed1 | 166 | r = notify_override_overridden(top, bottom); |
866062b1 | 167 | if (!arg_diff) |
4c253ed1 | 168 | return r; |
7e8d5761 LP |
169 | |
170 | putchar('\n'); | |
171 | ||
172 | fflush(stdout); | |
173 | ||
0672e2c6 | 174 | r = safe_fork("(diff)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_CLOSE_ALL_FDS|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG, &pid); |
4c253ed1 | 175 | if (r < 0) |
b6e1fff1 | 176 | return r; |
4c253ed1 | 177 | if (r == 0) { |
7e8d5761 | 178 | execlp("diff", "diff", "-us", "--", bottom, top, NULL); |
0b1f3c76 | 179 | log_open(); |
56f64d95 | 180 | log_error_errno(errno, "Failed to execute diff: %m"); |
ce30c8dc | 181 | _exit(EXIT_FAILURE); |
7e8d5761 LP |
182 | } |
183 | ||
7d4904fe | 184 | (void) wait_for_terminate_and_check("diff", pid, WAIT_LOG_ABNORMAL); |
7e8d5761 LP |
185 | putchar('\n'); |
186 | ||
4c253ed1 | 187 | return r; |
7e8d5761 LP |
188 | } |
189 | ||
9f5ebb8a ZJS |
190 | static int enumerate_dir_d( |
191 | OrderedHashmap *top, | |
192 | OrderedHashmap *bottom, | |
193 | OrderedHashmap *drops, | |
194 | const char *toppath, const char *drop) { | |
195 | ||
f939e9a4 | 196 | _cleanup_free_ char *unit = NULL; |
0000ce05 LN |
197 | _cleanup_free_ char *path = NULL; |
198 | _cleanup_strv_free_ char **list = NULL; | |
0000ce05 LN |
199 | char *c; |
200 | int r; | |
201 | ||
f939e9a4 ZJS |
202 | assert(!endswith(drop, "/")); |
203 | ||
657ee2d8 | 204 | path = path_join(toppath, drop); |
0000ce05 LN |
205 | if (!path) |
206 | return -ENOMEM; | |
207 | ||
f939e9a4 | 208 | log_debug("Looking at %s", path); |
0000ce05 | 209 | |
f939e9a4 ZJS |
210 | unit = strdup(drop); |
211 | if (!unit) | |
0000ce05 LN |
212 | return -ENOMEM; |
213 | ||
f939e9a4 | 214 | c = strrchr(unit, '.'); |
0000ce05 LN |
215 | if (!c) |
216 | return -EINVAL; | |
217 | *c = 0; | |
218 | ||
219 | r = get_files_in_directory(path, &list); | |
23bbb0de MS |
220 | if (r < 0) |
221 | return log_error_errno(r, "Failed to enumerate %s: %m", path); | |
0000ce05 | 222 | |
9f5ebb8a ZJS |
223 | strv_sort(list); |
224 | ||
0000ce05 | 225 | STRV_FOREACH(file, list) { |
9f5ebb8a | 226 | OrderedHashmap *h; |
0000ce05 LN |
227 | int k; |
228 | char *p; | |
229 | char *d; | |
230 | ||
231 | if (!endswith(*file, ".conf")) | |
232 | continue; | |
233 | ||
657ee2d8 | 234 | p = path_join(path, *file); |
0000ce05 LN |
235 | if (!p) |
236 | return -ENOMEM; | |
f939e9a4 | 237 | d = p + strlen(toppath) + 1; |
0000ce05 | 238 | |
fc03e80c | 239 | log_debug("Adding at top: %s %s %s", d, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), p); |
9f5ebb8a | 240 | k = ordered_hashmap_put(top, d, p); |
0000ce05 LN |
241 | if (k >= 0) { |
242 | p = strdup(p); | |
243 | if (!p) | |
244 | return -ENOMEM; | |
f939e9a4 | 245 | d = p + strlen(toppath) + 1; |
0000ce05 LN |
246 | } else if (k != -EEXIST) { |
247 | free(p); | |
248 | return k; | |
249 | } | |
250 | ||
fc03e80c | 251 | log_debug("Adding at bottom: %s %s %s", d, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), p); |
9f5ebb8a ZJS |
252 | free(ordered_hashmap_remove(bottom, d)); |
253 | k = ordered_hashmap_put(bottom, d, p); | |
0000ce05 LN |
254 | if (k < 0) { |
255 | free(p); | |
256 | return k; | |
257 | } | |
258 | ||
9f5ebb8a | 259 | h = ordered_hashmap_get(drops, unit); |
0000ce05 | 260 | if (!h) { |
9f5ebb8a | 261 | h = ordered_hashmap_new(&string_hash_ops); |
0000ce05 LN |
262 | if (!h) |
263 | return -ENOMEM; | |
9f5ebb8a | 264 | ordered_hashmap_put(drops, unit, h); |
f939e9a4 ZJS |
265 | unit = strdup(unit); |
266 | if (!unit) | |
0000ce05 LN |
267 | return -ENOMEM; |
268 | } | |
269 | ||
270 | p = strdup(p); | |
271 | if (!p) | |
272 | return -ENOMEM; | |
273 | ||
00a5cc3a | 274 | log_debug("Adding to drops: %s %s %s %s %s", |
fc03e80c | 275 | unit, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), basename(p), special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), p); |
9f5ebb8a | 276 | k = ordered_hashmap_put(h, basename(p), p); |
0000ce05 LN |
277 | if (k < 0) { |
278 | free(p); | |
279 | if (k != -EEXIST) | |
280 | return k; | |
281 | } | |
282 | } | |
283 | return 0; | |
284 | } | |
285 | ||
9f5ebb8a ZJS |
286 | static int enumerate_dir( |
287 | OrderedHashmap *top, | |
288 | OrderedHashmap *bottom, | |
289 | OrderedHashmap *drops, | |
290 | const char *path, bool dropins) { | |
291 | ||
292 | _cleanup_closedir_ DIR *d = NULL; | |
9f5ebb8a | 293 | _cleanup_strv_free_ char **files = NULL, **dirs = NULL; |
319a4f4b | 294 | size_t n_files = 0, n_dirs = 0; |
9f5ebb8a | 295 | int r; |
7e8d5761 LP |
296 | |
297 | assert(top); | |
298 | assert(bottom); | |
0000ce05 | 299 | assert(drops); |
7e8d5761 LP |
300 | assert(path); |
301 | ||
f939e9a4 ZJS |
302 | log_debug("Looking at %s", path); |
303 | ||
7e8d5761 LP |
304 | d = opendir(path); |
305 | if (!d) { | |
306 | if (errno == ENOENT) | |
307 | return 0; | |
308 | ||
e1427b13 | 309 | return log_error_errno(errno, "Failed to open %s: %m", path); |
7e8d5761 LP |
310 | } |
311 | ||
8fb3f009 | 312 | FOREACH_DIRENT_ALL(de, d, return -errno) { |
9f5ebb8a | 313 | if (dropins && de->d_type == DT_DIR && endswith(de->d_name, ".d")) { |
319a4f4b | 314 | if (!GREEDY_REALLOC0(dirs, n_dirs + 2)) |
9f5ebb8a ZJS |
315 | return -ENOMEM; |
316 | ||
317 | dirs[n_dirs] = strdup(de->d_name); | |
318 | if (!dirs[n_dirs]) | |
319 | return -ENOMEM; | |
320 | n_dirs ++; | |
321 | } | |
0000ce05 | 322 | |
7e8d5761 LP |
323 | if (!dirent_is_file(de)) |
324 | continue; | |
325 | ||
319a4f4b | 326 | if (!GREEDY_REALLOC0(files, n_files + 2)) |
9f5ebb8a ZJS |
327 | return -ENOMEM; |
328 | ||
329 | files[n_files] = strdup(de->d_name); | |
330 | if (!files[n_files]) | |
331 | return -ENOMEM; | |
332 | n_files ++; | |
333 | } | |
334 | ||
335 | strv_sort(dirs); | |
336 | strv_sort(files); | |
337 | ||
338 | STRV_FOREACH(t, dirs) { | |
339 | r = enumerate_dir_d(top, bottom, drops, path, *t); | |
340 | if (r < 0) | |
341 | return r; | |
342 | } | |
343 | ||
344 | STRV_FOREACH(t, files) { | |
345 | _cleanup_free_ char *p = NULL; | |
346 | ||
657ee2d8 | 347 | p = path_join(path, *t); |
e26970a8 TA |
348 | if (!p) |
349 | return -ENOMEM; | |
7e8d5761 | 350 | |
fc03e80c | 351 | log_debug("Adding at top: %s %s %s", basename(p), special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), p); |
9f5ebb8a ZJS |
352 | r = ordered_hashmap_put(top, basename(p), p); |
353 | if (r >= 0) { | |
7e8d5761 | 354 | p = strdup(p); |
e26970a8 TA |
355 | if (!p) |
356 | return -ENOMEM; | |
9f5ebb8a ZJS |
357 | } else if (r != -EEXIST) |
358 | return r; | |
7e8d5761 | 359 | |
fc03e80c | 360 | log_debug("Adding at bottom: %s %s %s", basename(p), special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), p); |
9f5ebb8a ZJS |
361 | free(ordered_hashmap_remove(bottom, basename(p))); |
362 | r = ordered_hashmap_put(bottom, basename(p), p); | |
363 | if (r < 0) | |
364 | return r; | |
365 | p = NULL; | |
7e8d5761 | 366 | } |
9f5ebb8a | 367 | |
8fb3f009 | 368 | return 0; |
7e8d5761 LP |
369 | } |
370 | ||
6d946490 | 371 | static int should_skip_path(const char *prefix, const char *suffix) { |
349cc4a5 | 372 | #if HAVE_SPLIT_USR |
8e7e4a73 | 373 | _cleanup_free_ char *target = NULL, *dirname = NULL; |
b05422a8 | 374 | |
8e7e4a73 LP |
375 | dirname = path_join(prefix, suffix); |
376 | if (!dirname) | |
377 | return -ENOMEM; | |
b05422a8 | 378 | |
f461a28d | 379 | if (chase(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) { |
90e74a66 ZJS |
402 | char *f, *key; |
403 | OrderedHashmap *top, *bottom, *drops, *h; | |
404 | int r = 0, k, n_found = 0; | |
f939e9a4 | 405 | bool dropins; |
7e8d5761 | 406 | |
7e8d5761 | 407 | assert(suffix); |
f939e9a4 ZJS |
408 | assert(!startswith(suffix, "/")); |
409 | assert(!strstr(suffix, "//")); | |
7e8d5761 | 410 | |
f939e9a4 | 411 | dropins = nulstr_contains(have_dropins, suffix); |
7e8d5761 | 412 | |
9f5ebb8a ZJS |
413 | top = ordered_hashmap_new(&string_hash_ops); |
414 | bottom = ordered_hashmap_new(&string_hash_ops); | |
415 | drops = ordered_hashmap_new(&string_hash_ops); | |
f939e9a4 | 416 | if (!top || !bottom || !drops) { |
0000ce05 LN |
417 | r = -ENOMEM; |
418 | goto finish; | |
419 | } | |
420 | ||
7e8d5761 | 421 | NULSTR_FOREACH(p, prefixes) { |
e26970a8 | 422 | _cleanup_free_ char *t = NULL; |
b05422a8 | 423 | |
6d946490 | 424 | if (should_skip_path(p, suffix) > 0) |
b05422a8 | 425 | continue; |
7e8d5761 | 426 | |
657ee2d8 | 427 | t = path_join(p, suffix); |
7e8d5761 LP |
428 | if (!t) { |
429 | r = -ENOMEM; | |
430 | goto finish; | |
431 | } | |
432 | ||
0000ce05 | 433 | k = enumerate_dir(top, bottom, drops, t, dropins); |
f939e9a4 | 434 | if (r == 0) |
7e8d5761 | 435 | r = k; |
7e8d5761 LP |
436 | } |
437 | ||
90e74a66 | 438 | ORDERED_HASHMAP_FOREACH_KEY(f, key, top) { |
7e8d5761 LP |
439 | char *o; |
440 | ||
9f5ebb8a | 441 | o = ordered_hashmap_get(bottom, key); |
7e8d5761 LP |
442 | assert(o); |
443 | ||
6096dfd6 ZJS |
444 | if (!onlyprefix || startswith(o, onlyprefix)) { |
445 | if (path_equal(o, f)) { | |
446 | notify_override_unchanged(f); | |
447 | } else { | |
448 | k = found_override(f, o); | |
449 | if (k < 0) | |
450 | r = k; | |
451 | else | |
452 | n_found += k; | |
453 | } | |
807f4645 | 454 | } |
7e8d5761 | 455 | |
9f5ebb8a | 456 | h = ordered_hashmap_get(drops, key); |
0000ce05 | 457 | if (h) |
90e74a66 | 458 | ORDERED_HASHMAP_FOREACH(o, h) |
6096dfd6 ZJS |
459 | if (!onlyprefix || startswith(o, onlyprefix)) |
460 | n_found += notify_override_extended(f, o); | |
7e8d5761 LP |
461 | } |
462 | ||
463 | finish: | |
9f5ebb8a ZJS |
464 | ordered_hashmap_free_free(top); |
465 | ordered_hashmap_free_free(bottom); | |
82376245 | 466 | |
90e74a66 | 467 | ORDERED_HASHMAP_FOREACH_KEY(h, key, drops) { |
9f5ebb8a ZJS |
468 | ordered_hashmap_free_free(ordered_hashmap_remove(drops, key)); |
469 | ordered_hashmap_remove(drops, key); | |
82376245 | 470 | free(key); |
0000ce05 | 471 | } |
9f5ebb8a | 472 | ordered_hashmap_free(drops); |
82376245 | 473 | |
7e8d5761 LP |
474 | return r < 0 ? r : n_found; |
475 | } | |
476 | ||
6096dfd6 | 477 | static int process_suffixes(const char *onlyprefix) { |
6096dfd6 ZJS |
478 | int n_found = 0, r; |
479 | ||
480 | NULSTR_FOREACH(n, suffixes) { | |
481 | r = process_suffix(n, onlyprefix); | |
482 | if (r < 0) | |
483 | return r; | |
82376245 LP |
484 | |
485 | n_found += r; | |
6096dfd6 | 486 | } |
82376245 | 487 | |
6096dfd6 ZJS |
488 | return n_found; |
489 | } | |
490 | ||
491 | static int process_suffix_chop(const char *arg) { | |
6096dfd6 | 492 | assert(arg); |
7e8d5761 | 493 | |
6096dfd6 ZJS |
494 | if (!path_is_absolute(arg)) |
495 | return process_suffix(arg, NULL); | |
7e8d5761 LP |
496 | |
497 | /* Strip prefix from the suffix */ | |
498 | NULSTR_FOREACH(p, prefixes) { | |
82376245 LP |
499 | const char *suffix; |
500 | ||
501 | suffix = startswith(arg, p); | |
6096dfd6 | 502 | if (suffix) { |
7e8d5761 | 503 | suffix += strspn(suffix, "/"); |
6096dfd6 | 504 | if (*suffix) |
a9d041fa | 505 | return process_suffix(suffix, p); |
6096dfd6 ZJS |
506 | else |
507 | return process_suffixes(arg); | |
7e8d5761 LP |
508 | } |
509 | } | |
510 | ||
baaa35ad ZJS |
511 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
512 | "Invalid suffix specification %s.", arg); | |
7e8d5761 LP |
513 | } |
514 | ||
37ec0fdd LP |
515 | static int help(void) { |
516 | _cleanup_free_ char *link = NULL; | |
517 | int r; | |
518 | ||
519 | r = terminal_urlify_man("systemd-delta", "1", &link); | |
520 | if (r < 0) | |
521 | return log_oom(); | |
522 | ||
7e8d5761 LP |
523 | printf("%s [OPTIONS...] [SUFFIX...]\n\n" |
524 | "Find overridden configuration files.\n\n" | |
525 | " -h --help Show this help\n" | |
526 | " --version Show package version\n" | |
807f4645 | 527 | " --no-pager Do not pipe output into a pager\n" |
386da858 | 528 | " --diff[=1|0] Show a diff when overridden files differ\n" |
601185b4 | 529 | " -t --type=LIST... Only display a selected set of override types\n" |
bc556335 DDM |
530 | "\nSee the %s for details.\n", |
531 | program_invocation_short_name, | |
532 | link); | |
37ec0fdd LP |
533 | |
534 | return 0; | |
7e8d5761 LP |
535 | } |
536 | ||
866062b1 | 537 | static int parse_flags(const char *flag_str, int flags) { |
cc24f0b8 ZJS |
538 | for (;;) { |
539 | _cleanup_free_ char *word = NULL; | |
540 | int r; | |
807f4645 | 541 | |
cc24f0b8 ZJS |
542 | r = extract_first_word(&flag_str, &word, ",", EXTRACT_DONT_COALESCE_SEPARATORS); |
543 | if (r < 0) | |
544 | return r; | |
545 | if (r == 0) | |
546 | return flags; | |
547 | ||
548 | if (streq(word, "masked")) | |
807f4645 | 549 | flags |= SHOW_MASKED; |
cc24f0b8 | 550 | else if (streq(word, "equivalent")) |
c8021373 | 551 | flags |= SHOW_EQUIVALENT; |
cc24f0b8 | 552 | else if (streq(word, "redirected")) |
c8021373 | 553 | flags |= SHOW_REDIRECTED; |
cc24f0b8 | 554 | else if (streq(word, "overridden")) |
386da858 | 555 | flags |= SHOW_OVERRIDDEN; |
cc24f0b8 | 556 | else if (streq(word, "unchanged")) |
807f4645 | 557 | flags |= SHOW_UNCHANGED; |
cc24f0b8 | 558 | else if (streq(word, "extended")) |
0000ce05 | 559 | flags |= SHOW_EXTENDED; |
cc24f0b8 | 560 | else if (streq(word, "default")) |
807f4645 | 561 | flags |= SHOW_DEFAULTS; |
866062b1 LP |
562 | else |
563 | return -EINVAL; | |
807f4645 | 564 | } |
807f4645 GN |
565 | } |
566 | ||
866062b1 | 567 | static int parse_argv(int argc, char *argv[]) { |
7e8d5761 LP |
568 | |
569 | enum { | |
570 | ARG_NO_PAGER = 0x100, | |
807f4645 | 571 | ARG_DIFF, |
7e8d5761 LP |
572 | ARG_VERSION |
573 | }; | |
574 | ||
575 | static const struct option options[] = { | |
576 | { "help", no_argument, NULL, 'h' }, | |
577 | { "version", no_argument, NULL, ARG_VERSION }, | |
578 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
807f4645 GN |
579 | { "diff", optional_argument, NULL, ARG_DIFF }, |
580 | { "type", required_argument, NULL, 't' }, | |
eb9da376 | 581 | {} |
7e8d5761 LP |
582 | }; |
583 | ||
c3470872 | 584 | int c, r; |
7e8d5761 LP |
585 | |
586 | assert(argc >= 1); | |
587 | assert(argv); | |
588 | ||
601185b4 | 589 | while ((c = getopt_long(argc, argv, "ht:", options, NULL)) >= 0) |
7e8d5761 LP |
590 | |
591 | switch (c) { | |
592 | ||
593 | case 'h': | |
37ec0fdd | 594 | return help(); |
7e8d5761 LP |
595 | |
596 | case ARG_VERSION: | |
3f6fd1ba | 597 | return version(); |
7e8d5761 LP |
598 | |
599 | case ARG_NO_PAGER: | |
0221d68a | 600 | arg_pager_flags |= PAGER_DISABLE; |
7e8d5761 LP |
601 | break; |
602 | ||
866062b1 LP |
603 | case 't': { |
604 | int f; | |
605 | f = parse_flags(optarg, arg_flags); | |
baaa35ad ZJS |
606 | if (f < 0) |
607 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
608 | "Failed to parse flags field."); | |
866062b1 | 609 | arg_flags = f; |
807f4645 | 610 | break; |
866062b1 | 611 | } |
807f4645 GN |
612 | |
613 | case ARG_DIFF: | |
c3470872 ZJS |
614 | r = parse_boolean_argument("--diff", optarg, NULL); |
615 | if (r < 0) | |
616 | return r; | |
617 | arg_diff = r; | |
807f4645 GN |
618 | break; |
619 | ||
eb9da376 | 620 | case '?': |
7e8d5761 | 621 | return -EINVAL; |
eb9da376 LP |
622 | |
623 | default: | |
04499a70 | 624 | assert_not_reached(); |
7e8d5761 | 625 | } |
7e8d5761 LP |
626 | |
627 | return 1; | |
628 | } | |
629 | ||
7280b076 | 630 | static int run(int argc, char *argv[]) { |
82376245 | 631 | int r, k, n_found = 0; |
7e8d5761 | 632 | |
d2acb93d | 633 | log_setup(); |
7e8d5761 | 634 | |
866062b1 | 635 | r = parse_argv(argc, argv); |
7e8d5761 | 636 | if (r <= 0) |
7280b076 | 637 | return r; |
7e8d5761 | 638 | |
866062b1 LP |
639 | if (arg_flags == 0) |
640 | arg_flags = SHOW_DEFAULTS; | |
641 | ||
642 | if (arg_diff < 0) | |
386da858 | 643 | arg_diff = !!(arg_flags & SHOW_OVERRIDDEN); |
866062b1 | 644 | else if (arg_diff) |
386da858 | 645 | arg_flags |= SHOW_OVERRIDDEN; |
807f4645 | 646 | |
384c2c32 | 647 | pager_open(arg_pager_flags); |
7e8d5761 LP |
648 | |
649 | if (optind < argc) { | |
650 | int i; | |
651 | ||
652 | for (i = optind; i < argc; i++) { | |
4ff361cc | 653 | path_simplify(argv[i]); |
82376245 | 654 | |
f939e9a4 | 655 | k = process_suffix_chop(argv[i]); |
7e8d5761 LP |
656 | if (k < 0) |
657 | r = k; | |
658 | else | |
659 | n_found += k; | |
660 | } | |
661 | ||
662 | } else { | |
6096dfd6 ZJS |
663 | k = process_suffixes(NULL); |
664 | if (k < 0) | |
665 | r = k; | |
666 | else | |
667 | n_found += k; | |
7e8d5761 LP |
668 | } |
669 | ||
670 | if (r >= 0) | |
82376245 | 671 | printf("%s%i overridden configuration files found.\n", n_found ? "\n" : "", n_found); |
7280b076 | 672 | return r; |
7e8d5761 | 673 | } |
7280b076 ZJS |
674 | |
675 | DEFINE_MAIN_FUNCTION(run); |