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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
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" |
6bedfcbb | 18 | #include "parse-util.h" |
3f6fd1ba | 19 | #include "path-util.h" |
294bf0c3 | 20 | #include "pretty-print.h" |
0b452006 | 21 | #include "process-util.h" |
ce30c8dc | 22 | #include "signal-util.h" |
8fcde012 | 23 | #include "stat-util.h" |
07630cea | 24 | #include "string-util.h" |
3f6fd1ba LP |
25 | #include "strv.h" |
26 | #include "terminal-util.h" | |
7e8d5761 | 27 | |
f939e9a4 ZJS |
28 | static const char prefixes[] = |
29 | "/etc\0" | |
30 | "/run\0" | |
31 | "/usr/local/lib\0" | |
32 | "/usr/local/share\0" | |
33 | "/usr/lib\0" | |
34 | "/usr/share\0" | |
349cc4a5 | 35 | #if HAVE_SPLIT_USR |
f939e9a4 ZJS |
36 | "/lib\0" |
37 | #endif | |
38 | ; | |
39 | ||
40 | static const char suffixes[] = | |
41 | "sysctl.d\0" | |
42 | "tmpfiles.d\0" | |
43 | "modules-load.d\0" | |
44 | "binfmt.d\0" | |
45 | "systemd/system\0" | |
46 | "systemd/user\0" | |
47 | "systemd/system-preset\0" | |
48 | "systemd/user-preset\0" | |
49 | "udev/rules.d\0" | |
50 | "modprobe.d\0"; | |
51 | ||
52 | static const char have_dropins[] = | |
53 | "systemd/system\0" | |
54 | "systemd/user\0"; | |
55 | ||
0221d68a | 56 | static PagerFlags arg_pager_flags = 0; |
866062b1 | 57 | static int arg_diff = -1; |
7e8d5761 | 58 | |
866062b1 | 59 | static enum { |
ef31828d | 60 | SHOW_MASKED = 1 << 0, |
c8021373 LP |
61 | SHOW_EQUIVALENT = 1 << 1, |
62 | SHOW_REDIRECTED = 1 << 2, | |
386da858 | 63 | SHOW_OVERRIDDEN = 1 << 3, |
ef31828d LP |
64 | SHOW_UNCHANGED = 1 << 4, |
65 | SHOW_EXTENDED = 1 << 5, | |
4c4e6431 LP |
66 | |
67 | SHOW_DEFAULTS = | |
0000ce05 | 68 | (SHOW_MASKED | SHOW_EQUIVALENT | SHOW_REDIRECTED | SHOW_OVERRIDDEN | SHOW_EXTENDED) |
866062b1 | 69 | } arg_flags = 0; |
4c4e6431 | 70 | |
7e8d5761 | 71 | static int equivalent(const char *a, const char *b) { |
e26970a8 | 72 | _cleanup_free_ char *x = NULL, *y = NULL; |
e1873695 | 73 | int r; |
7e8d5761 | 74 | |
a5648b80 | 75 | r = chase_symlinks(a, NULL, CHASE_TRAIL_SLASH, &x, NULL); |
e1873695 LP |
76 | if (r < 0) |
77 | return r; | |
7e8d5761 | 78 | |
a5648b80 | 79 | r = chase_symlinks(b, NULL, CHASE_TRAIL_SLASH, &y, NULL); |
e1873695 LP |
80 | if (r < 0) |
81 | return r; | |
7e8d5761 | 82 | |
e26970a8 | 83 | return path_equal(x, y); |
7e8d5761 LP |
84 | } |
85 | ||
866062b1 LP |
86 | static int notify_override_masked(const char *top, const char *bottom) { |
87 | if (!(arg_flags & SHOW_MASKED)) | |
807f4645 GN |
88 | return 0; |
89 | ||
00a5cc3a | 90 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 91 | ansi_highlight_red(), "[MASKED]", ansi_normal(), |
9a6f746f | 92 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
93 | return 1; |
94 | } | |
95 | ||
866062b1 LP |
96 | static int notify_override_equivalent(const char *top, const char *bottom) { |
97 | if (!(arg_flags & SHOW_EQUIVALENT)) | |
807f4645 GN |
98 | return 0; |
99 | ||
00a5cc3a | 100 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 101 | ansi_highlight_green(), "[EQUIVALENT]", ansi_normal(), |
9a6f746f | 102 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
103 | return 1; |
104 | } | |
105 | ||
866062b1 LP |
106 | static int notify_override_redirected(const char *top, const char *bottom) { |
107 | if (!(arg_flags & SHOW_REDIRECTED)) | |
807f4645 GN |
108 | return 0; |
109 | ||
9b6e0ce5 | 110 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 111 | ansi_highlight(), "[REDIRECTED]", ansi_normal(), |
9a6f746f | 112 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
113 | return 1; |
114 | } | |
115 | ||
386da858 NM |
116 | static int notify_override_overridden(const char *top, const char *bottom) { |
117 | if (!(arg_flags & SHOW_OVERRIDDEN)) | |
807f4645 GN |
118 | return 0; |
119 | ||
00a5cc3a | 120 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 121 | ansi_highlight(), "[OVERRIDDEN]", ansi_normal(), |
9a6f746f | 122 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
807f4645 GN |
123 | return 1; |
124 | } | |
125 | ||
0000ce05 LN |
126 | static int notify_override_extended(const char *top, const char *bottom) { |
127 | if (!(arg_flags & SHOW_EXTENDED)) | |
128 | return 0; | |
129 | ||
00a5cc3a | 130 | printf("%s%s%s %s %s %s\n", |
1fc464f6 | 131 | ansi_highlight(), "[EXTENDED]", ansi_normal(), |
9a6f746f | 132 | top, special_glyph(SPECIAL_GLYPH_ARROW), bottom); |
0000ce05 LN |
133 | return 1; |
134 | } | |
135 | ||
866062b1 LP |
136 | static int notify_override_unchanged(const char *f) { |
137 | if (!(arg_flags & SHOW_UNCHANGED)) | |
807f4645 GN |
138 | return 0; |
139 | ||
8e812a23 | 140 | printf("[UNCHANGED] %s\n", f); |
807f4645 GN |
141 | return 1; |
142 | } | |
143 | ||
866062b1 | 144 | static int found_override(const char *top, const char *bottom) { |
e26970a8 | 145 | _cleanup_free_ char *dest = NULL; |
7e8d5761 | 146 | pid_t pid; |
4c253ed1 | 147 | int r; |
7e8d5761 LP |
148 | |
149 | assert(top); | |
150 | assert(bottom); | |
151 | ||
8fd57568 ZJS |
152 | if (null_or_empty_path(top) > 0) |
153 | return notify_override_masked(top, bottom); | |
7e8d5761 | 154 | |
4c253ed1 LP |
155 | r = readlink_malloc(top, &dest); |
156 | if (r >= 0) { | |
7e8d5761 | 157 | if (equivalent(dest, bottom) > 0) |
8fd57568 | 158 | return notify_override_equivalent(top, bottom); |
7e8d5761 | 159 | else |
8fd57568 | 160 | return notify_override_redirected(top, bottom); |
7e8d5761 LP |
161 | } |
162 | ||
4c253ed1 | 163 | r = notify_override_overridden(top, bottom); |
866062b1 | 164 | if (!arg_diff) |
4c253ed1 | 165 | return r; |
7e8d5761 LP |
166 | |
167 | putchar('\n'); | |
168 | ||
169 | fflush(stdout); | |
170 | ||
0672e2c6 | 171 | r = safe_fork("(diff)", FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_CLOSE_ALL_FDS|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG, &pid); |
4c253ed1 | 172 | if (r < 0) |
b6e1fff1 | 173 | return r; |
4c253ed1 | 174 | if (r == 0) { |
7e8d5761 | 175 | execlp("diff", "diff", "-us", "--", bottom, top, NULL); |
0b1f3c76 | 176 | log_open(); |
56f64d95 | 177 | log_error_errno(errno, "Failed to execute diff: %m"); |
ce30c8dc | 178 | _exit(EXIT_FAILURE); |
7e8d5761 LP |
179 | } |
180 | ||
7d4904fe | 181 | (void) wait_for_terminate_and_check("diff", pid, WAIT_LOG_ABNORMAL); |
7e8d5761 LP |
182 | putchar('\n'); |
183 | ||
4c253ed1 | 184 | return r; |
7e8d5761 LP |
185 | } |
186 | ||
9f5ebb8a ZJS |
187 | static int enumerate_dir_d( |
188 | OrderedHashmap *top, | |
189 | OrderedHashmap *bottom, | |
190 | OrderedHashmap *drops, | |
191 | const char *toppath, const char *drop) { | |
192 | ||
f939e9a4 | 193 | _cleanup_free_ char *unit = NULL; |
0000ce05 LN |
194 | _cleanup_free_ char *path = NULL; |
195 | _cleanup_strv_free_ char **list = NULL; | |
196 | char **file; | |
197 | char *c; | |
198 | int r; | |
199 | ||
f939e9a4 ZJS |
200 | assert(!endswith(drop, "/")); |
201 | ||
657ee2d8 | 202 | path = path_join(toppath, drop); |
0000ce05 LN |
203 | if (!path) |
204 | return -ENOMEM; | |
205 | ||
f939e9a4 | 206 | log_debug("Looking at %s", path); |
0000ce05 | 207 | |
f939e9a4 ZJS |
208 | unit = strdup(drop); |
209 | if (!unit) | |
0000ce05 LN |
210 | return -ENOMEM; |
211 | ||
f939e9a4 | 212 | c = strrchr(unit, '.'); |
0000ce05 LN |
213 | if (!c) |
214 | return -EINVAL; | |
215 | *c = 0; | |
216 | ||
217 | r = get_files_in_directory(path, &list); | |
23bbb0de MS |
218 | if (r < 0) |
219 | return log_error_errno(r, "Failed to enumerate %s: %m", path); | |
0000ce05 | 220 | |
9f5ebb8a ZJS |
221 | strv_sort(list); |
222 | ||
0000ce05 | 223 | STRV_FOREACH(file, list) { |
9f5ebb8a | 224 | OrderedHashmap *h; |
0000ce05 LN |
225 | int k; |
226 | char *p; | |
227 | char *d; | |
228 | ||
229 | if (!endswith(*file, ".conf")) | |
230 | continue; | |
231 | ||
657ee2d8 | 232 | p = path_join(path, *file); |
0000ce05 LN |
233 | if (!p) |
234 | return -ENOMEM; | |
f939e9a4 | 235 | d = p + strlen(toppath) + 1; |
0000ce05 | 236 | |
9a6f746f | 237 | log_debug("Adding at top: %s %s %s", d, special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a | 238 | k = ordered_hashmap_put(top, d, p); |
0000ce05 LN |
239 | if (k >= 0) { |
240 | p = strdup(p); | |
241 | if (!p) | |
242 | return -ENOMEM; | |
f939e9a4 | 243 | d = p + strlen(toppath) + 1; |
0000ce05 LN |
244 | } else if (k != -EEXIST) { |
245 | free(p); | |
246 | return k; | |
247 | } | |
248 | ||
9a6f746f | 249 | log_debug("Adding at bottom: %s %s %s", d, special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a ZJS |
250 | free(ordered_hashmap_remove(bottom, d)); |
251 | k = ordered_hashmap_put(bottom, d, p); | |
0000ce05 LN |
252 | if (k < 0) { |
253 | free(p); | |
254 | return k; | |
255 | } | |
256 | ||
9f5ebb8a | 257 | h = ordered_hashmap_get(drops, unit); |
0000ce05 | 258 | if (!h) { |
9f5ebb8a | 259 | h = ordered_hashmap_new(&string_hash_ops); |
0000ce05 LN |
260 | if (!h) |
261 | return -ENOMEM; | |
9f5ebb8a | 262 | ordered_hashmap_put(drops, unit, h); |
f939e9a4 ZJS |
263 | unit = strdup(unit); |
264 | if (!unit) | |
0000ce05 LN |
265 | return -ENOMEM; |
266 | } | |
267 | ||
268 | p = strdup(p); | |
269 | if (!p) | |
270 | return -ENOMEM; | |
271 | ||
00a5cc3a | 272 | log_debug("Adding to drops: %s %s %s %s %s", |
9a6f746f | 273 | unit, special_glyph(SPECIAL_GLYPH_ARROW), basename(p), special_glyph(SPECIAL_GLYPH_ARROW), p); |
9f5ebb8a | 274 | k = ordered_hashmap_put(h, basename(p), p); |
0000ce05 LN |
275 | if (k < 0) { |
276 | free(p); | |
277 | if (k != -EEXIST) | |
278 | return k; | |
279 | } | |
280 | } | |
281 | return 0; | |
282 | } | |
283 | ||
9f5ebb8a ZJS |
284 | static int enumerate_dir( |
285 | OrderedHashmap *top, | |
286 | OrderedHashmap *bottom, | |
287 | OrderedHashmap *drops, | |
288 | const char *path, bool dropins) { | |
289 | ||
290 | _cleanup_closedir_ DIR *d = NULL; | |
8fb3f009 | 291 | struct dirent *de; |
9f5ebb8a ZJS |
292 | _cleanup_strv_free_ char **files = NULL, **dirs = NULL; |
293 | size_t n_files = 0, allocated_files = 0, n_dirs = 0, allocated_dirs = 0; | |
294 | char **t; | |
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) { |
277f2f75 LN |
313 | dirent_ensure_type(d, de); |
314 | ||
9f5ebb8a ZJS |
315 | if (dropins && de->d_type == DT_DIR && endswith(de->d_name, ".d")) { |
316 | if (!GREEDY_REALLOC0(dirs, allocated_dirs, n_dirs + 2)) | |
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 | ||
9f5ebb8a ZJS |
328 | if (!GREEDY_REALLOC0(files, allocated_files, n_files + 2)) |
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 LP |
403 | const char *p; |
404 | char *f; | |
9f5ebb8a ZJS |
405 | OrderedHashmap *top, *bottom, *drops; |
406 | OrderedHashmap *h; | |
0000ce05 | 407 | char *key; |
7e8d5761 | 408 | int r = 0, k; |
0000ce05 | 409 | Iterator i, j; |
7e8d5761 | 410 | int n_found = 0; |
f939e9a4 | 411 | bool dropins; |
7e8d5761 | 412 | |
7e8d5761 | 413 | assert(suffix); |
f939e9a4 ZJS |
414 | assert(!startswith(suffix, "/")); |
415 | assert(!strstr(suffix, "//")); | |
7e8d5761 | 416 | |
f939e9a4 | 417 | dropins = nulstr_contains(have_dropins, suffix); |
7e8d5761 | 418 | |
9f5ebb8a ZJS |
419 | top = ordered_hashmap_new(&string_hash_ops); |
420 | bottom = ordered_hashmap_new(&string_hash_ops); | |
421 | drops = ordered_hashmap_new(&string_hash_ops); | |
f939e9a4 | 422 | if (!top || !bottom || !drops) { |
0000ce05 LN |
423 | r = -ENOMEM; |
424 | goto finish; | |
425 | } | |
426 | ||
7e8d5761 | 427 | NULSTR_FOREACH(p, prefixes) { |
e26970a8 | 428 | _cleanup_free_ char *t = NULL; |
b05422a8 | 429 | |
6d946490 | 430 | if (should_skip_path(p, suffix) > 0) |
b05422a8 | 431 | continue; |
7e8d5761 | 432 | |
657ee2d8 | 433 | t = path_join(p, suffix); |
7e8d5761 LP |
434 | if (!t) { |
435 | r = -ENOMEM; | |
436 | goto finish; | |
437 | } | |
438 | ||
0000ce05 | 439 | k = enumerate_dir(top, bottom, drops, t, dropins); |
f939e9a4 | 440 | if (r == 0) |
7e8d5761 | 441 | r = k; |
7e8d5761 LP |
442 | } |
443 | ||
9f5ebb8a | 444 | ORDERED_HASHMAP_FOREACH_KEY(f, key, top, i) { |
7e8d5761 LP |
445 | char *o; |
446 | ||
9f5ebb8a | 447 | o = ordered_hashmap_get(bottom, key); |
7e8d5761 LP |
448 | assert(o); |
449 | ||
6096dfd6 ZJS |
450 | if (!onlyprefix || startswith(o, onlyprefix)) { |
451 | if (path_equal(o, f)) { | |
452 | notify_override_unchanged(f); | |
453 | } else { | |
454 | k = found_override(f, o); | |
455 | if (k < 0) | |
456 | r = k; | |
457 | else | |
458 | n_found += k; | |
459 | } | |
807f4645 | 460 | } |
7e8d5761 | 461 | |
9f5ebb8a | 462 | h = ordered_hashmap_get(drops, key); |
0000ce05 | 463 | if (h) |
9f5ebb8a | 464 | ORDERED_HASHMAP_FOREACH(o, h, j) |
6096dfd6 ZJS |
465 | if (!onlyprefix || startswith(o, onlyprefix)) |
466 | n_found += notify_override_extended(f, o); | |
7e8d5761 LP |
467 | } |
468 | ||
469 | finish: | |
9f5ebb8a ZJS |
470 | ordered_hashmap_free_free(top); |
471 | ordered_hashmap_free_free(bottom); | |
82376245 | 472 | |
9f5ebb8a ZJS |
473 | ORDERED_HASHMAP_FOREACH_KEY(h, key, drops, i) { |
474 | ordered_hashmap_free_free(ordered_hashmap_remove(drops, key)); | |
475 | ordered_hashmap_remove(drops, key); | |
82376245 | 476 | free(key); |
0000ce05 | 477 | } |
9f5ebb8a | 478 | ordered_hashmap_free(drops); |
82376245 | 479 | |
7e8d5761 LP |
480 | return r < 0 ? r : n_found; |
481 | } | |
482 | ||
6096dfd6 ZJS |
483 | static int process_suffixes(const char *onlyprefix) { |
484 | const char *n; | |
485 | int n_found = 0, r; | |
486 | ||
487 | NULSTR_FOREACH(n, suffixes) { | |
488 | r = process_suffix(n, onlyprefix); | |
489 | if (r < 0) | |
490 | return r; | |
82376245 LP |
491 | |
492 | n_found += r; | |
6096dfd6 | 493 | } |
82376245 | 494 | |
6096dfd6 ZJS |
495 | return n_found; |
496 | } | |
497 | ||
498 | static int process_suffix_chop(const char *arg) { | |
7e8d5761 LP |
499 | const char *p; |
500 | ||
6096dfd6 | 501 | assert(arg); |
7e8d5761 | 502 | |
6096dfd6 ZJS |
503 | if (!path_is_absolute(arg)) |
504 | return process_suffix(arg, NULL); | |
7e8d5761 LP |
505 | |
506 | /* Strip prefix from the suffix */ | |
507 | NULSTR_FOREACH(p, prefixes) { | |
82376245 LP |
508 | const char *suffix; |
509 | ||
510 | suffix = startswith(arg, p); | |
6096dfd6 | 511 | if (suffix) { |
7e8d5761 | 512 | suffix += strspn(suffix, "/"); |
6096dfd6 | 513 | if (*suffix) |
a9d041fa | 514 | return process_suffix(suffix, p); |
6096dfd6 ZJS |
515 | else |
516 | return process_suffixes(arg); | |
7e8d5761 LP |
517 | } |
518 | } | |
519 | ||
baaa35ad ZJS |
520 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
521 | "Invalid suffix specification %s.", arg); | |
7e8d5761 LP |
522 | } |
523 | ||
37ec0fdd LP |
524 | static int help(void) { |
525 | _cleanup_free_ char *link = NULL; | |
526 | int r; | |
527 | ||
528 | r = terminal_urlify_man("systemd-delta", "1", &link); | |
529 | if (r < 0) | |
530 | return log_oom(); | |
531 | ||
7e8d5761 LP |
532 | printf("%s [OPTIONS...] [SUFFIX...]\n\n" |
533 | "Find overridden configuration files.\n\n" | |
534 | " -h --help Show this help\n" | |
535 | " --version Show package version\n" | |
807f4645 | 536 | " --no-pager Do not pipe output into a pager\n" |
386da858 | 537 | " --diff[=1|0] Show a diff when overridden files differ\n" |
601185b4 | 538 | " -t --type=LIST... Only display a selected set of override types\n" |
37ec0fdd LP |
539 | "\nSee the %s for details.\n" |
540 | , program_invocation_short_name | |
541 | , link | |
542 | ); | |
543 | ||
544 | return 0; | |
7e8d5761 LP |
545 | } |
546 | ||
866062b1 | 547 | static int parse_flags(const char *flag_str, int flags) { |
a2a5291b | 548 | const char *word, *state; |
807f4645 GN |
549 | size_t l; |
550 | ||
d0a2e1c3 | 551 | FOREACH_WORD_SEPARATOR(word, l, flag_str, ",", state) { |
a2a5291b | 552 | if (strneq("masked", word, l)) |
807f4645 | 553 | flags |= SHOW_MASKED; |
a2a5291b | 554 | else if (strneq ("equivalent", word, l)) |
c8021373 | 555 | flags |= SHOW_EQUIVALENT; |
a2a5291b | 556 | else if (strneq("redirected", word, l)) |
c8021373 | 557 | flags |= SHOW_REDIRECTED; |
a2a5291b | 558 | else if (strneq("overridden", word, l)) |
386da858 | 559 | flags |= SHOW_OVERRIDDEN; |
a2a5291b | 560 | else if (strneq("unchanged", word, l)) |
807f4645 | 561 | flags |= SHOW_UNCHANGED; |
a2a5291b | 562 | else if (strneq("extended", word, l)) |
0000ce05 | 563 | flags |= SHOW_EXTENDED; |
a2a5291b | 564 | else if (strneq("default", word, l)) |
807f4645 | 565 | flags |= SHOW_DEFAULTS; |
866062b1 LP |
566 | else |
567 | return -EINVAL; | |
807f4645 GN |
568 | } |
569 | return flags; | |
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 | ||
589 | int c; | |
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: | |
866062b1 LP |
619 | if (!optarg) |
620 | arg_diff = 1; | |
621 | else { | |
622 | int b; | |
623 | ||
624 | b = parse_boolean(optarg); | |
baaa35ad ZJS |
625 | if (b < 0) |
626 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
627 | "Failed to parse diff boolean."); | |
82376245 LP |
628 | |
629 | arg_diff = b; | |
807f4645 GN |
630 | } |
631 | break; | |
632 | ||
eb9da376 | 633 | case '?': |
7e8d5761 | 634 | return -EINVAL; |
eb9da376 LP |
635 | |
636 | default: | |
637 | assert_not_reached("Unhandled option"); | |
7e8d5761 | 638 | } |
7e8d5761 LP |
639 | |
640 | return 1; | |
641 | } | |
642 | ||
7280b076 | 643 | static int run(int argc, char *argv[]) { |
82376245 | 644 | int r, k, n_found = 0; |
7e8d5761 | 645 | |
41d1f469 | 646 | log_setup_cli(); |
7e8d5761 | 647 | |
866062b1 | 648 | r = parse_argv(argc, argv); |
7e8d5761 | 649 | if (r <= 0) |
7280b076 | 650 | return r; |
7e8d5761 | 651 | |
866062b1 LP |
652 | if (arg_flags == 0) |
653 | arg_flags = SHOW_DEFAULTS; | |
654 | ||
655 | if (arg_diff < 0) | |
386da858 | 656 | arg_diff = !!(arg_flags & SHOW_OVERRIDDEN); |
866062b1 | 657 | else if (arg_diff) |
386da858 | 658 | arg_flags |= SHOW_OVERRIDDEN; |
807f4645 | 659 | |
0221d68a | 660 | (void) pager_open(arg_pager_flags); |
7e8d5761 LP |
661 | |
662 | if (optind < argc) { | |
663 | int i; | |
664 | ||
665 | for (i = optind; i < argc; i++) { | |
858d36c1 | 666 | path_simplify(argv[i], false); |
82376245 | 667 | |
f939e9a4 | 668 | k = process_suffix_chop(argv[i]); |
7e8d5761 LP |
669 | if (k < 0) |
670 | r = k; | |
671 | else | |
672 | n_found += k; | |
673 | } | |
674 | ||
675 | } else { | |
6096dfd6 ZJS |
676 | k = process_suffixes(NULL); |
677 | if (k < 0) | |
678 | r = k; | |
679 | else | |
680 | n_found += k; | |
7e8d5761 LP |
681 | } |
682 | ||
683 | if (r >= 0) | |
82376245 | 684 | printf("%s%i overridden configuration files found.\n", n_found ? "\n" : "", n_found); |
7280b076 | 685 | return r; |
7e8d5761 | 686 | } |
7280b076 ZJS |
687 | |
688 | DEFINE_MAIN_FUNCTION(run); |