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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" |
f4351959 | 9 | #include "chase-symlinks.h" |
a0956174 | 10 | #include "dirent-util.h" |
3ffd4af2 | 11 | #include "fd-util.h" |
f4f15635 | 12 | #include "fs-util.h" |
d8e32c47 | 13 | #include "glyph-util.h" |
7e8d5761 | 14 | #include "hashmap.h" |
7e8d5761 | 15 | #include "log.h" |
7280b076 | 16 | #include "main-func.h" |
d8b4d14d | 17 | #include "nulstr-util.h" |
7e8d5761 | 18 | #include "pager.h" |
c3470872 | 19 | #include "parse-argument.h" |
6bedfcbb | 20 | #include "parse-util.h" |
3f6fd1ba | 21 | #include "path-util.h" |
294bf0c3 | 22 | #include "pretty-print.h" |
0b452006 | 23 | #include "process-util.h" |
ce30c8dc | 24 | #include "signal-util.h" |
8fcde012 | 25 | #include "stat-util.h" |
07630cea | 26 | #include "string-util.h" |
3f6fd1ba LP |
27 | #include "strv.h" |
28 | #include "terminal-util.h" | |
7e8d5761 | 29 | |
f939e9a4 ZJS |
30 | static const char prefixes[] = |
31 | "/etc\0" | |
32 | "/run\0" | |
33 | "/usr/local/lib\0" | |
34 | "/usr/local/share\0" | |
35 | "/usr/lib\0" | |
36 | "/usr/share\0" | |
349cc4a5 | 37 | #if HAVE_SPLIT_USR |
f939e9a4 ZJS |
38 | "/lib\0" |
39 | #endif | |
40 | ; | |
41 | ||
42 | static const char suffixes[] = | |
43 | "sysctl.d\0" | |
44 | "tmpfiles.d\0" | |
45 | "modules-load.d\0" | |
46 | "binfmt.d\0" | |
47 | "systemd/system\0" | |
48 | "systemd/user\0" | |
49 | "systemd/system-preset\0" | |
50 | "systemd/user-preset\0" | |
51 | "udev/rules.d\0" | |
52 | "modprobe.d\0"; | |
53 | ||
54 | static const char have_dropins[] = | |
55 | "systemd/system\0" | |
56 | "systemd/user\0"; | |
57 | ||
0221d68a | 58 | static PagerFlags arg_pager_flags = 0; |
866062b1 | 59 | static int arg_diff = -1; |
7e8d5761 | 60 | |
866062b1 | 61 | static enum { |
ef31828d | 62 | SHOW_MASKED = 1 << 0, |
c8021373 LP |
63 | SHOW_EQUIVALENT = 1 << 1, |
64 | SHOW_REDIRECTED = 1 << 2, | |
386da858 | 65 | SHOW_OVERRIDDEN = 1 << 3, |
ef31828d LP |
66 | SHOW_UNCHANGED = 1 << 4, |
67 | SHOW_EXTENDED = 1 << 5, | |
4c4e6431 LP |
68 | |
69 | SHOW_DEFAULTS = | |
0000ce05 | 70 | (SHOW_MASKED | SHOW_EQUIVALENT | SHOW_REDIRECTED | SHOW_OVERRIDDEN | SHOW_EXTENDED) |
866062b1 | 71 | } arg_flags = 0; |
4c4e6431 | 72 | |
7e8d5761 | 73 | static int equivalent(const char *a, const char *b) { |
e26970a8 | 74 | _cleanup_free_ char *x = NULL, *y = NULL; |
e1873695 | 75 | int r; |
7e8d5761 | 76 | |
a5648b80 | 77 | r = chase_symlinks(a, NULL, CHASE_TRAIL_SLASH, &x, NULL); |
e1873695 LP |
78 | if (r < 0) |
79 | return r; | |
7e8d5761 | 80 | |
a5648b80 | 81 | r = chase_symlinks(b, NULL, CHASE_TRAIL_SLASH, &y, NULL); |
e1873695 LP |
82 | if (r < 0) |
83 | return r; | |
7e8d5761 | 84 | |
e26970a8 | 85 | return path_equal(x, y); |
7e8d5761 LP |
86 | } |
87 | ||
866062b1 LP |
88 | static int notify_override_masked(const char *top, const char *bottom) { |
89 | if (!(arg_flags & SHOW_MASKED)) | |
807f4645 GN |
90 | return 0; |
91 | ||
00a5cc3a | 92 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 93 | ansi_highlight_red(), "[MASKED]", ansi_normal(), |
9a6f746f | 94 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
95 | return 1; |
96 | } | |
97 | ||
866062b1 LP |
98 | static int notify_override_equivalent(const char *top, const char *bottom) { |
99 | if (!(arg_flags & SHOW_EQUIVALENT)) | |
807f4645 GN |
100 | return 0; |
101 | ||
00a5cc3a | 102 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 103 | ansi_highlight_green(), "[EQUIVALENT]", ansi_normal(), |
9a6f746f | 104 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
105 | return 1; |
106 | } | |
107 | ||
866062b1 LP |
108 | static int notify_override_redirected(const char *top, const char *bottom) { |
109 | if (!(arg_flags & SHOW_REDIRECTED)) | |
807f4645 GN |
110 | return 0; |
111 | ||
9b6e0ce5 | 112 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 113 | ansi_highlight(), "[REDIRECTED]", ansi_normal(), |
9a6f746f | 114 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
115 | return 1; |
116 | } | |
117 | ||
386da858 NM |
118 | static int notify_override_overridden(const char *top, const char *bottom) { |
119 | if (!(arg_flags & SHOW_OVERRIDDEN)) | |
807f4645 GN |
120 | return 0; |
121 | ||
00a5cc3a | 122 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 123 | ansi_highlight(), "[OVERRIDDEN]", ansi_normal(), |
9a6f746f | 124 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
125 | return 1; |
126 | } | |
127 | ||
0000ce05 LN |
128 | static int notify_override_extended(const char *top, const char *bottom) { |
129 | if (!(arg_flags & SHOW_EXTENDED)) | |
130 | return 0; | |
131 | ||
00a5cc3a | 132 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 133 | ansi_highlight(), "[EXTENDED]", ansi_normal(), |
9a6f746f | 134 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
0000ce05 LN |
135 | return 1; |
136 | } | |
137 | ||
866062b1 LP |
138 | static int notify_override_unchanged(const char *f) { |
139 | if (!(arg_flags & SHOW_UNCHANGED)) | |
807f4645 GN |
140 | return 0; |
141 | ||
8e812a23 | 142 | printf("[UNCHANGED] %s\n", f); |
807f4645 GN |
143 | return 1; |
144 | } | |
145 | ||
866062b1 | 146 | static int found_override(const char *top, const char *bottom) { |
e26970a8 | 147 | _cleanup_free_ char *dest = NULL; |
7e8d5761 | 148 | pid_t pid; |
4c253ed1 | 149 | int r; |
7e8d5761 LP |
150 | |
151 | assert(top); | |
152 | assert(bottom); | |
153 | ||
8fd57568 ZJS |
154 | if (null_or_empty_path(top) > 0) |
155 | return notify_override_masked(top, bottom); | |
7e8d5761 | 156 | |
4c253ed1 LP |
157 | r = readlink_malloc(top, &dest); |
158 | if (r >= 0) { | |
7e8d5761 | 159 | if (equivalent(dest, bottom) > 0) |
8fd57568 | 160 | return notify_override_equivalent(top, bottom); |
7e8d5761 | 161 | else |
8fd57568 | 162 | return notify_override_redirected(top, bottom); |
7e8d5761 LP |
163 | } |
164 | ||
4c253ed1 | 165 | r = notify_override_overridden(top, bottom); |
866062b1 | 166 | if (!arg_diff) |
4c253ed1 | 167 | return r; |
7e8d5761 LP |
168 | |
169 | putchar('\n'); | |
170 | ||
171 | fflush(stdout); | |
172 | ||
0672e2c6 | 173 | r = safe_fork("(diff)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_CLOSE_ALL_FDS|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG, &pid); |
4c253ed1 | 174 | if (r < 0) |
b6e1fff1 | 175 | return r; |
4c253ed1 | 176 | if (r == 0) { |
7e8d5761 | 177 | execlp("diff", "diff", "-us", "--", bottom, top, NULL); |
0b1f3c76 | 178 | log_open(); |
56f64d95 | 179 | log_error_errno(errno, "Failed to execute diff: %m"); |
ce30c8dc | 180 | _exit(EXIT_FAILURE); |
7e8d5761 LP |
181 | } |
182 | ||
7d4904fe | 183 | (void) wait_for_terminate_and_check("diff", pid, WAIT_LOG_ABNORMAL); |
7e8d5761 LP |
184 | putchar('\n'); |
185 | ||
4c253ed1 | 186 | return r; |
7e8d5761 LP |
187 | } |
188 | ||
9f5ebb8a ZJS |
189 | static int enumerate_dir_d( |
190 | OrderedHashmap *top, | |
191 | OrderedHashmap *bottom, | |
192 | OrderedHashmap *drops, | |
193 | const char *toppath, const char *drop) { | |
194 | ||
f939e9a4 | 195 | _cleanup_free_ char *unit = NULL; |
0000ce05 LN |
196 | _cleanup_free_ char *path = NULL; |
197 | _cleanup_strv_free_ char **list = NULL; | |
198 | char **file; | |
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 | |
9a6f746f | 239 | log_debug("Adding at top: %s %s %s", d, special_glyph(SPECIAL_GLYPH_ARROW), 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 | ||
9a6f746f | 251 | log_debug("Adding at bottom: %s %s %s", d, special_glyph(SPECIAL_GLYPH_ARROW), 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", |
9a6f746f | 275 | unit, special_glyph(SPECIAL_GLYPH_ARROW), basename(p), special_glyph(SPECIAL_GLYPH_ARROW), 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; | |
8fb3f009 | 293 | struct dirent *de; |
9f5ebb8a | 294 | _cleanup_strv_free_ char **files = NULL, **dirs = NULL; |
319a4f4b | 295 | size_t n_files = 0, n_dirs = 0; |
9f5ebb8a ZJS |
296 | char **t; |
297 | int r; | |
7e8d5761 LP |
298 | |
299 | assert(top); | |
300 | assert(bottom); | |
0000ce05 | 301 | assert(drops); |
7e8d5761 LP |
302 | assert(path); |
303 | ||
f939e9a4 ZJS |
304 | log_debug("Looking at %s", path); |
305 | ||
7e8d5761 LP |
306 | d = opendir(path); |
307 | if (!d) { | |
308 | if (errno == ENOENT) | |
309 | return 0; | |
310 | ||
e1427b13 | 311 | return log_error_errno(errno, "Failed to open %s: %m", path); |
7e8d5761 LP |
312 | } |
313 | ||
8fb3f009 | 314 | FOREACH_DIRENT_ALL(de, d, return -errno) { |
9f5ebb8a | 315 | if (dropins && de->d_type == DT_DIR && endswith(de->d_name, ".d")) { |
319a4f4b | 316 | if (!GREEDY_REALLOC0(dirs, n_dirs + 2)) |
9f5ebb8a ZJS |
317 | return -ENOMEM; |
318 | ||
319 | dirs[n_dirs] = strdup(de->d_name); | |
320 | if (!dirs[n_dirs]) | |
321 | return -ENOMEM; | |
322 | n_dirs ++; | |
323 | } | |
0000ce05 | 324 | |
7e8d5761 LP |
325 | if (!dirent_is_file(de)) |
326 | continue; | |
327 | ||
319a4f4b | 328 | if (!GREEDY_REALLOC0(files, n_files + 2)) |
9f5ebb8a ZJS |
329 | return -ENOMEM; |
330 | ||
331 | files[n_files] = strdup(de->d_name); | |
332 | if (!files[n_files]) | |
333 | return -ENOMEM; | |
334 | n_files ++; | |
335 | } | |
336 | ||
337 | strv_sort(dirs); | |
338 | strv_sort(files); | |
339 | ||
340 | STRV_FOREACH(t, dirs) { | |
341 | r = enumerate_dir_d(top, bottom, drops, path, *t); | |
342 | if (r < 0) | |
343 | return r; | |
344 | } | |
345 | ||
346 | STRV_FOREACH(t, files) { | |
347 | _cleanup_free_ char *p = NULL; | |
348 | ||
657ee2d8 | 349 | p = path_join(path, *t); |
e26970a8 TA |
350 | if (!p) |
351 | return -ENOMEM; | |
7e8d5761 | 352 | |
9a6f746f | 353 | log_debug("Adding at top: %s %s %s", basename(p), special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a ZJS |
354 | r = ordered_hashmap_put(top, basename(p), p); |
355 | if (r >= 0) { | |
7e8d5761 | 356 | p = strdup(p); |
e26970a8 TA |
357 | if (!p) |
358 | return -ENOMEM; | |
9f5ebb8a ZJS |
359 | } else if (r != -EEXIST) |
360 | return r; | |
7e8d5761 | 361 | |
9a6f746f | 362 | log_debug("Adding at bottom: %s %s %s", basename(p), special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a ZJS |
363 | free(ordered_hashmap_remove(bottom, basename(p))); |
364 | r = ordered_hashmap_put(bottom, basename(p), p); | |
365 | if (r < 0) | |
366 | return r; | |
367 | p = NULL; | |
7e8d5761 | 368 | } |
9f5ebb8a | 369 | |
8fb3f009 | 370 | return 0; |
7e8d5761 LP |
371 | } |
372 | ||
6d946490 | 373 | static int should_skip_path(const char *prefix, const char *suffix) { |
349cc4a5 | 374 | #if HAVE_SPLIT_USR |
b05422a8 | 375 | _cleanup_free_ char *target = NULL; |
270384b2 | 376 | const char *dirname, *p; |
b05422a8 | 377 | |
270384b2 | 378 | dirname = prefix_roota(prefix, suffix); |
b05422a8 | 379 | |
a5648b80 | 380 | if (chase_symlinks(dirname, NULL, 0, &target, NULL) < 0) |
4cc893e7 FB |
381 | return false; |
382 | ||
383 | NULSTR_FOREACH(p, prefixes) { | |
6d946490 YW |
384 | _cleanup_free_ char *tmp = NULL; |
385 | ||
4cc893e7 FB |
386 | if (path_startswith(dirname, p)) |
387 | continue; | |
388 | ||
6d946490 YW |
389 | tmp = path_join(p, suffix); |
390 | if (!tmp) | |
391 | return -ENOMEM; | |
392 | ||
393 | if (path_equal(target, tmp)) { | |
4cc893e7 FB |
394 | log_debug("%s redirects to %s, skipping.", dirname, target); |
395 | return true; | |
396 | } | |
397 | } | |
b05422a8 | 398 | #endif |
4cc893e7 | 399 | return false; |
b05422a8 FS |
400 | } |
401 | ||
6096dfd6 | 402 | static int process_suffix(const char *suffix, const char *onlyprefix) { |
7e8d5761 | 403 | const char *p; |
90e74a66 ZJS |
404 | char *f, *key; |
405 | OrderedHashmap *top, *bottom, *drops, *h; | |
406 | int r = 0, k, n_found = 0; | |
f939e9a4 | 407 | bool dropins; |
7e8d5761 | 408 | |
7e8d5761 | 409 | assert(suffix); |
f939e9a4 ZJS |
410 | assert(!startswith(suffix, "/")); |
411 | assert(!strstr(suffix, "//")); | |
7e8d5761 | 412 | |
f939e9a4 | 413 | dropins = nulstr_contains(have_dropins, suffix); |
7e8d5761 | 414 | |
9f5ebb8a ZJS |
415 | top = ordered_hashmap_new(&string_hash_ops); |
416 | bottom = ordered_hashmap_new(&string_hash_ops); | |
417 | drops = ordered_hashmap_new(&string_hash_ops); | |
f939e9a4 | 418 | if (!top || !bottom || !drops) { |
0000ce05 LN |
419 | r = -ENOMEM; |
420 | goto finish; | |
421 | } | |
422 | ||
7e8d5761 | 423 | NULSTR_FOREACH(p, prefixes) { |
e26970a8 | 424 | _cleanup_free_ char *t = NULL; |
b05422a8 | 425 | |
6d946490 | 426 | if (should_skip_path(p, suffix) > 0) |
b05422a8 | 427 | continue; |
7e8d5761 | 428 | |
657ee2d8 | 429 | t = path_join(p, suffix); |
7e8d5761 LP |
430 | if (!t) { |
431 | r = -ENOMEM; | |
432 | goto finish; | |
433 | } | |
434 | ||
0000ce05 | 435 | k = enumerate_dir(top, bottom, drops, t, dropins); |
f939e9a4 | 436 | if (r == 0) |
7e8d5761 | 437 | r = k; |
7e8d5761 LP |
438 | } |
439 | ||
90e74a66 | 440 | ORDERED_HASHMAP_FOREACH_KEY(f, key, top) { |
7e8d5761 LP |
441 | char *o; |
442 | ||
9f5ebb8a | 443 | o = ordered_hashmap_get(bottom, key); |
7e8d5761 LP |
444 | assert(o); |
445 | ||
6096dfd6 ZJS |
446 | if (!onlyprefix || startswith(o, onlyprefix)) { |
447 | if (path_equal(o, f)) { | |
448 | notify_override_unchanged(f); | |
449 | } else { | |
450 | k = found_override(f, o); | |
451 | if (k < 0) | |
452 | r = k; | |
453 | else | |
454 | n_found += k; | |
455 | } | |
807f4645 | 456 | } |
7e8d5761 | 457 | |
9f5ebb8a | 458 | h = ordered_hashmap_get(drops, key); |
0000ce05 | 459 | if (h) |
90e74a66 | 460 | ORDERED_HASHMAP_FOREACH(o, h) |
6096dfd6 ZJS |
461 | if (!onlyprefix || startswith(o, onlyprefix)) |
462 | n_found += notify_override_extended(f, o); | |
7e8d5761 LP |
463 | } |
464 | ||
465 | finish: | |
9f5ebb8a ZJS |
466 | ordered_hashmap_free_free(top); |
467 | ordered_hashmap_free_free(bottom); | |
82376245 | 468 | |
90e74a66 | 469 | ORDERED_HASHMAP_FOREACH_KEY(h, key, drops) { |
9f5ebb8a ZJS |
470 | ordered_hashmap_free_free(ordered_hashmap_remove(drops, key)); |
471 | ordered_hashmap_remove(drops, key); | |
82376245 | 472 | free(key); |
0000ce05 | 473 | } |
9f5ebb8a | 474 | ordered_hashmap_free(drops); |
82376245 | 475 | |
7e8d5761 LP |
476 | return r < 0 ? r : n_found; |
477 | } | |
478 | ||
6096dfd6 ZJS |
479 | static int process_suffixes(const char *onlyprefix) { |
480 | const char *n; | |
481 | int n_found = 0, r; | |
482 | ||
483 | NULSTR_FOREACH(n, suffixes) { | |
484 | r = process_suffix(n, onlyprefix); | |
485 | if (r < 0) | |
486 | return r; | |
82376245 LP |
487 | |
488 | n_found += r; | |
6096dfd6 | 489 | } |
82376245 | 490 | |
6096dfd6 ZJS |
491 | return n_found; |
492 | } | |
493 | ||
494 | static int process_suffix_chop(const char *arg) { | |
7e8d5761 LP |
495 | const char *p; |
496 | ||
6096dfd6 | 497 | assert(arg); |
7e8d5761 | 498 | |
6096dfd6 ZJS |
499 | if (!path_is_absolute(arg)) |
500 | return process_suffix(arg, NULL); | |
7e8d5761 LP |
501 | |
502 | /* Strip prefix from the suffix */ | |
503 | NULSTR_FOREACH(p, prefixes) { | |
82376245 LP |
504 | const char *suffix; |
505 | ||
506 | suffix = startswith(arg, p); | |
6096dfd6 | 507 | if (suffix) { |
7e8d5761 | 508 | suffix += strspn(suffix, "/"); |
6096dfd6 | 509 | if (*suffix) |
a9d041fa | 510 | return process_suffix(suffix, p); |
6096dfd6 ZJS |
511 | else |
512 | return process_suffixes(arg); | |
7e8d5761 LP |
513 | } |
514 | } | |
515 | ||
baaa35ad ZJS |
516 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
517 | "Invalid suffix specification %s.", arg); | |
7e8d5761 LP |
518 | } |
519 | ||
37ec0fdd LP |
520 | static int help(void) { |
521 | _cleanup_free_ char *link = NULL; | |
522 | int r; | |
523 | ||
524 | r = terminal_urlify_man("systemd-delta", "1", &link); | |
525 | if (r < 0) | |
526 | return log_oom(); | |
527 | ||
7e8d5761 LP |
528 | printf("%s [OPTIONS...] [SUFFIX...]\n\n" |
529 | "Find overridden configuration files.\n\n" | |
530 | " -h --help Show this help\n" | |
531 | " --version Show package version\n" | |
807f4645 | 532 | " --no-pager Do not pipe output into a pager\n" |
386da858 | 533 | " --diff[=1|0] Show a diff when overridden files differ\n" |
601185b4 | 534 | " -t --type=LIST... Only display a selected set of override types\n" |
bc556335 DDM |
535 | "\nSee the %s for details.\n", |
536 | program_invocation_short_name, | |
537 | link); | |
37ec0fdd LP |
538 | |
539 | return 0; | |
7e8d5761 LP |
540 | } |
541 | ||
866062b1 | 542 | static int parse_flags(const char *flag_str, int flags) { |
cc24f0b8 ZJS |
543 | for (;;) { |
544 | _cleanup_free_ char *word = NULL; | |
545 | int r; | |
807f4645 | 546 | |
cc24f0b8 ZJS |
547 | r = extract_first_word(&flag_str, &word, ",", EXTRACT_DONT_COALESCE_SEPARATORS); |
548 | if (r < 0) | |
549 | return r; | |
550 | if (r == 0) | |
551 | return flags; | |
552 | ||
553 | if (streq(word, "masked")) | |
807f4645 | 554 | flags |= SHOW_MASKED; |
cc24f0b8 | 555 | else if (streq(word, "equivalent")) |
c8021373 | 556 | flags |= SHOW_EQUIVALENT; |
cc24f0b8 | 557 | else if (streq(word, "redirected")) |
c8021373 | 558 | flags |= SHOW_REDIRECTED; |
cc24f0b8 | 559 | else if (streq(word, "overridden")) |
386da858 | 560 | flags |= SHOW_OVERRIDDEN; |
cc24f0b8 | 561 | else if (streq(word, "unchanged")) |
807f4645 | 562 | flags |= SHOW_UNCHANGED; |
cc24f0b8 | 563 | else if (streq(word, "extended")) |
0000ce05 | 564 | flags |= SHOW_EXTENDED; |
cc24f0b8 | 565 | else if (streq(word, "default")) |
807f4645 | 566 | flags |= SHOW_DEFAULTS; |
866062b1 LP |
567 | else |
568 | return -EINVAL; | |
807f4645 | 569 | } |
807f4645 GN |
570 | } |
571 | ||
866062b1 | 572 | static int parse_argv(int argc, char *argv[]) { |
7e8d5761 LP |
573 | |
574 | enum { | |
575 | ARG_NO_PAGER = 0x100, | |
807f4645 | 576 | ARG_DIFF, |
7e8d5761 LP |
577 | ARG_VERSION |
578 | }; | |
579 | ||
580 | static const struct option options[] = { | |
581 | { "help", no_argument, NULL, 'h' }, | |
582 | { "version", no_argument, NULL, ARG_VERSION }, | |
583 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
807f4645 GN |
584 | { "diff", optional_argument, NULL, ARG_DIFF }, |
585 | { "type", required_argument, NULL, 't' }, | |
eb9da376 | 586 | {} |
7e8d5761 LP |
587 | }; |
588 | ||
c3470872 | 589 | int c, r; |
7e8d5761 LP |
590 | |
591 | assert(argc >= 1); | |
592 | assert(argv); | |
593 | ||
601185b4 | 594 | while ((c = getopt_long(argc, argv, "ht:", options, NULL)) >= 0) |
7e8d5761 LP |
595 | |
596 | switch (c) { | |
597 | ||
598 | case 'h': | |
37ec0fdd | 599 | return help(); |
7e8d5761 LP |
600 | |
601 | case ARG_VERSION: | |
3f6fd1ba | 602 | return version(); |
7e8d5761 LP |
603 | |
604 | case ARG_NO_PAGER: | |
0221d68a | 605 | arg_pager_flags |= PAGER_DISABLE; |
7e8d5761 LP |
606 | break; |
607 | ||
866062b1 LP |
608 | case 't': { |
609 | int f; | |
610 | f = parse_flags(optarg, arg_flags); | |
baaa35ad ZJS |
611 | if (f < 0) |
612 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
613 | "Failed to parse flags field."); | |
866062b1 | 614 | arg_flags = f; |
807f4645 | 615 | break; |
866062b1 | 616 | } |
807f4645 GN |
617 | |
618 | case ARG_DIFF: | |
c3470872 ZJS |
619 | r = parse_boolean_argument("--diff", optarg, NULL); |
620 | if (r < 0) | |
621 | return r; | |
622 | arg_diff = r; | |
807f4645 GN |
623 | break; |
624 | ||
eb9da376 | 625 | case '?': |
7e8d5761 | 626 | return -EINVAL; |
eb9da376 LP |
627 | |
628 | default: | |
04499a70 | 629 | assert_not_reached(); |
7e8d5761 | 630 | } |
7e8d5761 LP |
631 | |
632 | return 1; | |
633 | } | |
634 | ||
7280b076 | 635 | static int run(int argc, char *argv[]) { |
82376245 | 636 | int r, k, n_found = 0; |
7e8d5761 | 637 | |
d2acb93d | 638 | log_setup(); |
7e8d5761 | 639 | |
866062b1 | 640 | r = parse_argv(argc, argv); |
7e8d5761 | 641 | if (r <= 0) |
7280b076 | 642 | return r; |
7e8d5761 | 643 | |
866062b1 LP |
644 | if (arg_flags == 0) |
645 | arg_flags = SHOW_DEFAULTS; | |
646 | ||
647 | if (arg_diff < 0) | |
386da858 | 648 | arg_diff = !!(arg_flags & SHOW_OVERRIDDEN); |
866062b1 | 649 | else if (arg_diff) |
386da858 | 650 | arg_flags |= SHOW_OVERRIDDEN; |
807f4645 | 651 | |
0221d68a | 652 | (void) pager_open(arg_pager_flags); |
7e8d5761 LP |
653 | |
654 | if (optind < argc) { | |
655 | int i; | |
656 | ||
657 | for (i = optind; i < argc; i++) { | |
4ff361cc | 658 | path_simplify(argv[i]); |
82376245 | 659 | |
f939e9a4 | 660 | k = process_suffix_chop(argv[i]); |
7e8d5761 LP |
661 | if (k < 0) |
662 | r = k; | |
663 | else | |
664 | n_found += k; | |
665 | } | |
666 | ||
667 | } else { | |
6096dfd6 ZJS |
668 | k = process_suffixes(NULL); |
669 | if (k < 0) | |
670 | r = k; | |
671 | else | |
672 | n_found += k; | |
7e8d5761 LP |
673 | } |
674 | ||
675 | if (r >= 0) | |
82376245 | 676 | printf("%s%i overridden configuration files found.\n", n_found ? "\n" : "", n_found); |
7280b076 | 677 | return r; |
7e8d5761 | 678 | } |
7280b076 ZJS |
679 | |
680 | DEFINE_MAIN_FUNCTION(run); |