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1b992147 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2014 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <sys/types.h> | |
23 | #include <pwd.h> | |
24 | #include <grp.h> | |
25 | #include <shadow.h> | |
26 | #include <getopt.h> | |
27 | ||
28 | #include "util.h" | |
29 | #include "hashmap.h" | |
30 | #include "specifier.h" | |
31 | #include "path-util.h" | |
32 | #include "build.h" | |
33 | #include "strv.h" | |
34 | #include "conf-files.h" | |
35 | #include "copy.h" | |
36 | #include "utf8.h" | |
37 | ||
38 | typedef enum ItemType { | |
39 | ADD_USER = 'u', | |
40 | ADD_GROUP = 'g', | |
41 | } ItemType; | |
42 | typedef struct Item { | |
43 | ItemType type; | |
44 | ||
45 | char *name; | |
46 | char *uid_path; | |
47 | char *gid_path; | |
48 | char *description; | |
49 | ||
50 | gid_t gid; | |
51 | uid_t uid; | |
52 | ||
53 | bool gid_set:1; | |
54 | bool uid_set:1; | |
55 | ||
c1b6b04f KS |
56 | bool todo_user:1; |
57 | bool todo_group:1; | |
1b992147 LP |
58 | } Item; |
59 | ||
60 | static char *arg_root = NULL; | |
61 | ||
62 | static const char conf_file_dirs[] = | |
63 | "/usr/local/lib/sysusers.d\0" | |
64 | "/usr/lib/sysusers.d\0" | |
65 | #ifdef HAVE_SPLIT_USR | |
66 | "/lib/sysusers.d\0" | |
67 | #endif | |
68 | ; | |
69 | ||
70 | static Hashmap *users = NULL, *groups = NULL; | |
71 | static Hashmap *todo_uids = NULL, *todo_gids = NULL; | |
72 | ||
73 | static Hashmap *database_uid = NULL, *database_user = NULL; | |
74 | static Hashmap *database_gid = NULL, *database_group = NULL; | |
75 | ||
76 | static uid_t search_uid = SYSTEM_UID_MAX; | |
77 | static gid_t search_gid = SYSTEM_GID_MAX; | |
78 | ||
79 | #define UID_TO_PTR(u) (ULONG_TO_PTR(u+1)) | |
80 | #define PTR_TO_UID(u) ((uid_t) (PTR_TO_ULONG(u)-1)) | |
81 | ||
82 | #define GID_TO_PTR(g) (ULONG_TO_PTR(g+1)) | |
83 | #define PTR_TO_GID(g) ((gid_t) (PTR_TO_ULONG(g)-1)) | |
84 | ||
85 | #define fix_root(x) (arg_root ? strappenda(arg_root, x) : x) | |
86 | ||
87 | static int load_user_database(void) { | |
88 | _cleanup_fclose_ FILE *f = NULL; | |
89 | const char *passwd_path; | |
90 | struct passwd *pw; | |
91 | int r; | |
92 | ||
93 | passwd_path = fix_root("/etc/passwd"); | |
94 | f = fopen(passwd_path, "re"); | |
95 | if (!f) | |
96 | return errno == ENOENT ? 0 : -errno; | |
97 | ||
98 | r = hashmap_ensure_allocated(&database_user, string_hash_func, string_compare_func); | |
99 | if (r < 0) | |
100 | return r; | |
101 | ||
102 | r = hashmap_ensure_allocated(&database_uid, trivial_hash_func, trivial_compare_func); | |
103 | if (r < 0) | |
104 | return r; | |
105 | ||
106 | errno = 0; | |
107 | while ((pw = fgetpwent(f))) { | |
108 | char *n; | |
109 | int k, q; | |
110 | ||
111 | n = strdup(pw->pw_name); | |
112 | if (!n) | |
113 | return -ENOMEM; | |
114 | ||
115 | k = hashmap_put(database_user, n, UID_TO_PTR(pw->pw_uid)); | |
116 | if (k < 0 && k != -EEXIST) { | |
117 | free(n); | |
118 | return k; | |
119 | } | |
120 | ||
121 | q = hashmap_put(database_uid, UID_TO_PTR(pw->pw_uid), n); | |
122 | if (q < 0 && q != -EEXIST) { | |
123 | if (k < 0) | |
124 | free(n); | |
125 | return q; | |
126 | } | |
127 | ||
128 | if (q < 0 && k < 0) | |
129 | free(n); | |
130 | ||
131 | errno = 0; | |
132 | } | |
133 | if (!IN_SET(errno, 0, ENOENT)) | |
134 | return -errno; | |
135 | ||
136 | return 0; | |
137 | } | |
138 | ||
139 | static int load_group_database(void) { | |
140 | _cleanup_fclose_ FILE *f = NULL; | |
141 | const char *group_path; | |
142 | struct group *gr; | |
143 | int r; | |
144 | ||
145 | group_path = fix_root("/etc/group"); | |
146 | f = fopen(group_path, "re"); | |
147 | if (!f) | |
148 | return errno == ENOENT ? 0 : -errno; | |
149 | ||
150 | r = hashmap_ensure_allocated(&database_group, string_hash_func, string_compare_func); | |
151 | if (r < 0) | |
152 | return r; | |
153 | ||
154 | r = hashmap_ensure_allocated(&database_gid, trivial_hash_func, trivial_compare_func); | |
155 | if (r < 0) | |
156 | return r; | |
157 | ||
158 | errno = 0; | |
159 | while ((gr = fgetgrent(f))) { | |
160 | char *n; | |
161 | int k, q; | |
162 | ||
163 | n = strdup(gr->gr_name); | |
164 | if (!n) | |
165 | return -ENOMEM; | |
166 | ||
167 | k = hashmap_put(database_group, n, GID_TO_PTR(gr->gr_gid)); | |
168 | if (k < 0 && k != -EEXIST) { | |
169 | free(n); | |
170 | return k; | |
171 | } | |
172 | ||
173 | q = hashmap_put(database_gid, GID_TO_PTR(gr->gr_gid), n); | |
174 | if (q < 0 && q != -EEXIST) { | |
175 | if (k < 0) | |
176 | free(n); | |
177 | return q; | |
178 | } | |
179 | ||
180 | if (q < 0 && k < 0) | |
181 | free(n); | |
182 | ||
183 | errno = 0; | |
184 | } | |
185 | if (!IN_SET(errno, 0, ENOENT)) | |
186 | return -errno; | |
187 | ||
188 | return 0; | |
189 | } | |
190 | ||
191 | static int make_backup(const char *x) { | |
192 | _cleanup_close_ int src = -1, dst = -1; | |
193 | char *backup, *temp; | |
194 | struct timespec ts[2]; | |
195 | struct stat st; | |
196 | int r; | |
197 | ||
198 | src = open(x, O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
199 | if (src < 0) { | |
200 | if (errno == ENOENT) /* No backup necessary... */ | |
201 | return 0; | |
202 | ||
203 | return -errno; | |
204 | } | |
205 | ||
206 | if (fstat(src, &st) < 0) | |
207 | return -errno; | |
208 | ||
209 | temp = strappenda(x, ".XXXXXX"); | |
210 | dst = mkostemp_safe(temp, O_WRONLY|O_CLOEXEC|O_NOCTTY); | |
211 | if (dst < 0) | |
212 | return dst; | |
213 | ||
214 | r = copy_bytes(src, dst); | |
215 | if (r < 0) | |
216 | goto fail; | |
217 | ||
218 | /* Copy over the access mask */ | |
219 | if (fchmod(dst, st.st_mode & 07777) < 0) { | |
220 | r = -errno; | |
221 | goto fail; | |
222 | } | |
223 | ||
224 | /* Don't fail on chmod(). If it stays owned by us, then it | |
225 | * isn't too bad... */ | |
226 | fchown(dst, st.st_uid, st.st_gid); | |
227 | ||
228 | ts[0] = st.st_atim; | |
229 | ts[1] = st.st_mtim; | |
230 | futimens(dst, ts); | |
231 | ||
232 | backup = strappenda(x, "-"); | |
233 | if (rename(temp, backup) < 0) | |
234 | goto fail; | |
235 | ||
236 | return 0; | |
237 | ||
238 | fail: | |
239 | unlink(temp); | |
240 | return r; | |
241 | } | |
242 | ||
243 | static int write_files(void) { | |
244 | ||
245 | _cleanup_fclose_ FILE *passwd = NULL, *group = NULL; | |
246 | _cleanup_free_ char *passwd_tmp = NULL, *group_tmp = NULL; | |
247 | const char *passwd_path = NULL, *group_path = NULL; | |
248 | Iterator iterator; | |
249 | Item *i; | |
250 | int r; | |
251 | ||
252 | /* We don't patch /etc/shadow or /etc/gshadow here, since we | |
253 | * only create user accounts without passwords anyway. */ | |
254 | ||
255 | if (hashmap_size(todo_gids) > 0) { | |
256 | _cleanup_fclose_ FILE *original = NULL; | |
257 | ||
258 | group_path = fix_root("/etc/group"); | |
259 | r = fopen_temporary(group_path, &group, &group_tmp); | |
260 | if (r < 0) | |
261 | goto finish; | |
262 | ||
263 | if (fchmod(fileno(group), 0644) < 0) { | |
264 | r = -errno; | |
265 | goto finish; | |
266 | } | |
267 | ||
268 | original = fopen(group_path, "re"); | |
269 | if (original) { | |
270 | struct group *gr; | |
271 | ||
272 | errno = 0; | |
273 | while ((gr = fgetgrent(original))) { | |
274 | /* Safety checks against name and GID | |
275 | * collisions. Normally, this should | |
276 | * be unnecessary, but given that we | |
277 | * look at the entries anyway here, | |
278 | * let's make an extra verification | |
279 | * step that we don't generate | |
280 | * duplicate entries. */ | |
281 | ||
282 | i = hashmap_get(groups, gr->gr_name); | |
c1b6b04f | 283 | if (i && i->todo_group) { |
1b992147 LP |
284 | r = -EEXIST; |
285 | goto finish; | |
286 | } | |
287 | ||
288 | if (hashmap_contains(todo_gids, GID_TO_PTR(gr->gr_gid))) { | |
289 | r = -EEXIST; | |
290 | goto finish; | |
291 | } | |
292 | ||
293 | if (putgrent(gr, group) < 0) { | |
294 | r = -errno; | |
295 | goto finish; | |
296 | } | |
297 | ||
298 | errno = 0; | |
299 | } | |
300 | if (!IN_SET(errno, 0, ENOENT)) { | |
301 | r = -errno; | |
302 | goto finish; | |
303 | } | |
304 | ||
305 | } else if (errno != ENOENT) { | |
306 | r = -errno; | |
307 | goto finish; | |
308 | } | |
309 | ||
310 | HASHMAP_FOREACH(i, todo_gids, iterator) { | |
311 | struct group n = { | |
312 | .gr_name = i->name, | |
313 | .gr_gid = i->gid, | |
314 | .gr_passwd = (char*) "x", | |
315 | }; | |
316 | ||
317 | if (putgrent(&n, group) < 0) { | |
318 | r = -errno; | |
319 | goto finish; | |
320 | } | |
321 | } | |
322 | ||
323 | r = fflush_and_check(group); | |
324 | if (r < 0) | |
325 | goto finish; | |
326 | } | |
327 | ||
328 | if (hashmap_size(todo_uids) > 0) { | |
329 | _cleanup_fclose_ FILE *original = NULL; | |
330 | ||
331 | passwd_path = fix_root("/etc/passwd"); | |
332 | r = fopen_temporary(passwd_path, &passwd, &passwd_tmp); | |
333 | if (r < 0) | |
334 | goto finish; | |
335 | ||
336 | if (fchmod(fileno(passwd), 0644) < 0) { | |
337 | r = -errno; | |
338 | goto finish; | |
339 | } | |
340 | ||
341 | original = fopen(passwd_path, "re"); | |
342 | if (original) { | |
343 | struct passwd *pw; | |
344 | ||
345 | errno = 0; | |
346 | while ((pw = fgetpwent(original))) { | |
347 | ||
348 | i = hashmap_get(users, pw->pw_name); | |
c1b6b04f | 349 | if (i && i->todo_user) { |
1b992147 LP |
350 | r = -EEXIST; |
351 | goto finish; | |
352 | } | |
353 | ||
354 | if (hashmap_contains(todo_uids, UID_TO_PTR(pw->pw_uid))) { | |
355 | r = -EEXIST; | |
356 | goto finish; | |
357 | } | |
358 | ||
359 | if (putpwent(pw, passwd) < 0) { | |
360 | r = -errno; | |
361 | goto finish; | |
362 | } | |
363 | ||
364 | errno = 0; | |
365 | } | |
366 | if (!IN_SET(errno, 0, ENOENT)) { | |
367 | r = -errno; | |
368 | goto finish; | |
369 | } | |
370 | ||
371 | } else if (errno != ENOENT) { | |
372 | r = -errno; | |
373 | goto finish; | |
374 | } | |
375 | ||
376 | HASHMAP_FOREACH(i, todo_uids, iterator) { | |
377 | struct passwd n = { | |
378 | .pw_name = i->name, | |
379 | .pw_uid = i->uid, | |
380 | .pw_gid = i->gid, | |
381 | .pw_gecos = i->description, | |
382 | .pw_passwd = (char*) "x", | |
383 | }; | |
384 | ||
385 | /* Initialize the home directory and the shell | |
386 | * to nologin, with one exception: for root we | |
387 | * patch in something special */ | |
388 | if (i->uid == 0) { | |
389 | n.pw_shell = (char*) "/bin/sh"; | |
390 | n.pw_dir = (char*) "/root"; | |
391 | } else { | |
392 | n.pw_shell = (char*) "/sbin/nologin"; | |
393 | n.pw_dir = (char*) "/"; | |
394 | } | |
395 | ||
396 | if (putpwent(&n, passwd) < 0) { | |
397 | r = -r; | |
398 | goto finish; | |
399 | } | |
400 | } | |
401 | ||
402 | r = fflush_and_check(passwd); | |
403 | if (r < 0) | |
404 | goto finish; | |
405 | } | |
406 | ||
407 | /* Make a backup of the old files */ | |
408 | if (group) { | |
409 | r = make_backup(group_path); | |
410 | if (r < 0) | |
411 | goto finish; | |
412 | } | |
413 | ||
414 | if (passwd) { | |
415 | r = make_backup(passwd_path); | |
416 | if (r < 0) | |
417 | goto finish; | |
418 | } | |
419 | ||
420 | /* And make the new files count */ | |
421 | if (group) { | |
422 | if (rename(group_tmp, group_path) < 0) { | |
423 | r = -errno; | |
424 | goto finish; | |
425 | } | |
426 | ||
427 | free(group_tmp); | |
428 | group_tmp = NULL; | |
429 | } | |
430 | ||
431 | if (passwd) { | |
432 | if (rename(passwd_tmp, passwd_path) < 0) { | |
433 | r = -errno; | |
434 | goto finish; | |
435 | } | |
436 | ||
437 | free(passwd_tmp); | |
438 | passwd_tmp = NULL; | |
439 | } | |
440 | ||
441 | return 0; | |
442 | ||
443 | finish: | |
444 | if (r < 0) { | |
445 | if (passwd_tmp) | |
446 | unlink(passwd_tmp); | |
447 | if (group_tmp) | |
448 | unlink(group_tmp); | |
449 | } | |
450 | ||
451 | return r; | |
452 | } | |
453 | ||
454 | static int uid_is_ok(uid_t uid, const char *name) { | |
455 | struct passwd *p; | |
456 | struct group *g; | |
457 | const char *n; | |
458 | Item *i; | |
459 | ||
460 | /* Let's see if we already have assigned the UID a second time */ | |
461 | if (hashmap_get(todo_uids, UID_TO_PTR(uid))) | |
462 | return 0; | |
463 | ||
464 | /* Try to avoid using uids that are already used by a group | |
465 | * that doesn't have the same name as our new user. */ | |
466 | i = hashmap_get(todo_gids, GID_TO_PTR(uid)); | |
467 | if (i && !streq(i->name, name)) | |
468 | return 0; | |
469 | ||
470 | /* Let's check the files directly */ | |
471 | if (hashmap_contains(database_uid, UID_TO_PTR(uid))) | |
472 | return 0; | |
473 | ||
474 | n = hashmap_get(database_gid, GID_TO_PTR(uid)); | |
475 | if (n && !streq(n, name)) | |
476 | return 0; | |
477 | ||
478 | /* Let's also check via NSS, to avoid UID clashes over LDAP and such, just in case */ | |
479 | if (!arg_root) { | |
480 | errno = 0; | |
481 | p = getpwuid(uid); | |
482 | if (p) | |
483 | return 0; | |
b0284aba | 484 | if (!IN_SET(errno, 0, ENOENT)) |
1b992147 LP |
485 | return -errno; |
486 | ||
487 | errno = 0; | |
488 | g = getgrgid((gid_t) uid); | |
489 | if (g) { | |
490 | if (!streq(g->gr_name, name)) | |
491 | return 0; | |
b0284aba | 492 | } else if (!IN_SET(errno, 0, ENOENT)) |
1b992147 LP |
493 | return -errno; |
494 | } | |
495 | ||
496 | return 1; | |
497 | } | |
498 | ||
499 | static int root_stat(const char *p, struct stat *st) { | |
500 | const char *fix; | |
501 | ||
502 | fix = fix_root(p); | |
503 | if (stat(fix, st) < 0) | |
504 | return -errno; | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | static int read_id_from_file(Item *i, uid_t *_uid, gid_t *_gid) { | |
510 | struct stat st; | |
511 | bool found_uid = false, found_gid = false; | |
512 | uid_t uid; | |
513 | gid_t gid; | |
514 | ||
515 | assert(i); | |
516 | ||
517 | /* First, try to get the gid directly */ | |
518 | if (_gid && i->gid_path && root_stat(i->gid_path, &st) >= 0) { | |
519 | gid = st.st_gid; | |
520 | found_gid = true; | |
521 | } | |
522 | ||
523 | /* Then, try to get the uid directly */ | |
524 | if ((_uid || (_gid && !found_gid)) | |
525 | && i->uid_path | |
526 | && root_stat(i->uid_path, &st) >= 0) { | |
527 | ||
528 | uid = st.st_uid; | |
529 | found_uid = true; | |
530 | ||
531 | /* If we need the gid, but had no success yet, also derive it from the uid path */ | |
532 | if (_gid && !found_gid) { | |
533 | gid = st.st_gid; | |
534 | found_gid = true; | |
535 | } | |
536 | } | |
537 | ||
538 | /* If that didn't work yet, then let's reuse the gid as uid */ | |
539 | if (_uid && !found_uid && i->gid_path) { | |
540 | ||
541 | if (found_gid) { | |
542 | uid = (uid_t) gid; | |
543 | found_uid = true; | |
544 | } else if (root_stat(i->gid_path, &st) >= 0) { | |
545 | uid = (uid_t) st.st_gid; | |
546 | found_uid = true; | |
547 | } | |
548 | } | |
549 | ||
550 | if (_uid) { | |
551 | if (!found_uid) | |
552 | return 0; | |
553 | ||
554 | *_uid = uid; | |
555 | } | |
556 | ||
557 | if (_gid) { | |
558 | if (!found_gid) | |
559 | return 0; | |
560 | ||
561 | *_gid = gid; | |
562 | } | |
563 | ||
564 | return 1; | |
565 | } | |
566 | ||
567 | static int add_user(Item *i) { | |
568 | void *z; | |
569 | int r; | |
570 | ||
571 | assert(i); | |
572 | ||
573 | /* Check the database directly */ | |
574 | z = hashmap_get(database_user, i->name); | |
575 | if (z) { | |
576 | log_debug("User %s already exists.", i->name); | |
c1b6b04f | 577 | i->uid = PTR_TO_UID(z); |
1b992147 LP |
578 | i->uid_set = true; |
579 | return 0; | |
580 | } | |
581 | ||
582 | if (!arg_root) { | |
583 | struct passwd *p; | |
584 | struct spwd *sp; | |
585 | ||
586 | /* Also check NSS */ | |
587 | errno = 0; | |
588 | p = getpwnam(i->name); | |
589 | if (p) { | |
590 | log_debug("User %s already exists.", i->name); | |
591 | i->uid = p->pw_uid; | |
592 | i->uid_set = true; | |
593 | ||
594 | free(i->description); | |
595 | i->description = strdup(p->pw_gecos); | |
596 | return 0; | |
597 | } | |
b0284aba | 598 | if (!IN_SET(errno, 0, ENOENT)) { |
1b992147 LP |
599 | log_error("Failed to check if user %s already exists: %m", i->name); |
600 | return -errno; | |
601 | } | |
602 | ||
603 | /* And shadow too, just to be sure */ | |
604 | errno = 0; | |
605 | sp = getspnam(i->name); | |
606 | if (sp) { | |
607 | log_error("User %s already exists in shadow database, but not in user database.", i->name); | |
608 | return -EBADMSG; | |
609 | } | |
b0284aba | 610 | if (!IN_SET(errno, 0, ENOENT)) { |
1b992147 LP |
611 | log_error("Failed to check if user %s already exists in shadow database: %m", i->name); |
612 | return -errno; | |
613 | } | |
614 | } | |
615 | ||
616 | /* Try to use the suggested numeric uid */ | |
617 | if (i->uid_set) { | |
618 | r = uid_is_ok(i->uid, i->name); | |
619 | if (r < 0) { | |
620 | log_error("Failed to verify uid " UID_FMT ": %s", i->uid, strerror(-r)); | |
621 | return r; | |
622 | } | |
623 | if (r == 0) { | |
624 | log_debug("Suggested user ID " UID_FMT " for %s already used.", i->uid, i->name); | |
625 | i->uid_set = false; | |
626 | } | |
627 | } | |
628 | ||
629 | /* If that didn't work, try to read it from the specified path */ | |
630 | if (!i->uid_set) { | |
631 | uid_t c; | |
632 | ||
633 | if (read_id_from_file(i, &c, NULL) > 0) { | |
634 | ||
635 | if (c <= 0 || c > SYSTEM_UID_MAX) | |
636 | log_debug("User ID " UID_FMT " of file not suitable for %s.", c, i->name); | |
637 | else { | |
638 | r = uid_is_ok(c, i->name); | |
639 | if (r < 0) { | |
640 | log_error("Failed to verify uid " UID_FMT ": %s", i->uid, strerror(-r)); | |
641 | return r; | |
642 | } else if (r > 0) { | |
643 | i->uid = c; | |
644 | i->uid_set = true; | |
645 | } else | |
646 | log_debug("User ID " UID_FMT " of file for %s is already used.", c, i->name); | |
647 | } | |
648 | } | |
649 | } | |
650 | ||
651 | /* Otherwise try to reuse the group ID */ | |
652 | if (!i->uid_set && i->gid_set) { | |
653 | r = uid_is_ok((uid_t) i->gid, i->name); | |
654 | if (r < 0) { | |
655 | log_error("Failed to verify uid " UID_FMT ": %s", i->uid, strerror(-r)); | |
656 | return r; | |
657 | } | |
658 | if (r > 0) { | |
659 | i->uid = (uid_t) i->gid; | |
660 | i->uid_set = true; | |
661 | } | |
662 | } | |
663 | ||
664 | /* And if that didn't work either, let's try to find a free one */ | |
665 | if (!i->uid_set) { | |
666 | for (; search_uid > 0; search_uid--) { | |
667 | ||
668 | r = uid_is_ok(search_uid, i->name); | |
669 | if (r < 0) { | |
670 | log_error("Failed to verify uid " UID_FMT ": %s", i->uid, strerror(-r)); | |
671 | return r; | |
672 | } else if (r > 0) | |
673 | break; | |
674 | } | |
675 | ||
676 | if (search_uid <= 0) { | |
677 | log_error("No free user ID available for %s.", i->name); | |
678 | return -E2BIG; | |
679 | } | |
680 | ||
681 | i->uid_set = true; | |
682 | i->uid = search_uid; | |
683 | ||
684 | search_uid--; | |
685 | } | |
686 | ||
687 | r = hashmap_ensure_allocated(&todo_uids, trivial_hash_func, trivial_compare_func); | |
688 | if (r < 0) | |
689 | return log_oom(); | |
690 | ||
691 | r = hashmap_put(todo_uids, UID_TO_PTR(i->uid), i); | |
692 | if (r < 0) | |
693 | return log_oom(); | |
694 | ||
c1b6b04f | 695 | i->todo_user = true; |
1b992147 LP |
696 | log_info("Creating user %s (%s) with uid " UID_FMT " and gid " GID_FMT ".", i->name, strna(i->description), i->uid, i->gid); |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | static int gid_is_ok(gid_t gid) { | |
702 | struct group *g; | |
703 | struct passwd *p; | |
704 | ||
705 | if (hashmap_get(todo_gids, GID_TO_PTR(gid))) | |
706 | return 0; | |
707 | ||
708 | /* Avoid reusing gids that are already used by a different user */ | |
709 | if (hashmap_get(todo_uids, UID_TO_PTR(gid))) | |
710 | return 0; | |
711 | ||
712 | if (hashmap_contains(database_gid, GID_TO_PTR(gid))) | |
713 | return 0; | |
714 | ||
715 | if (hashmap_contains(database_uid, UID_TO_PTR(gid))) | |
716 | return 0; | |
717 | ||
718 | if (!arg_root) { | |
719 | errno = 0; | |
720 | g = getgrgid(gid); | |
721 | if (g) | |
722 | return 0; | |
b0284aba | 723 | if (!IN_SET(errno, 0, ENOENT)) |
1b992147 LP |
724 | return -errno; |
725 | ||
726 | errno = 0; | |
727 | p = getpwuid((uid_t) gid); | |
728 | if (p) | |
729 | return 0; | |
b0284aba | 730 | if (!IN_SET(errno, 0, ENOENT)) |
1b992147 LP |
731 | return -errno; |
732 | } | |
733 | ||
734 | return 1; | |
735 | } | |
736 | ||
737 | static int add_group(Item *i) { | |
738 | void *z; | |
739 | int r; | |
740 | ||
741 | assert(i); | |
742 | ||
743 | /* Check the database directly */ | |
744 | z = hashmap_get(database_group, i->name); | |
745 | if (z) { | |
746 | log_debug("Group %s already exists.", i->name); | |
747 | i->gid = PTR_TO_GID(z); | |
748 | i->gid_set = true; | |
749 | return 0; | |
750 | } | |
751 | ||
752 | /* Also check NSS */ | |
753 | if (!arg_root) { | |
754 | struct group *g; | |
755 | ||
756 | errno = 0; | |
757 | g = getgrnam(i->name); | |
758 | if (g) { | |
759 | log_debug("Group %s already exists.", i->name); | |
760 | i->gid = g->gr_gid; | |
761 | i->gid_set = true; | |
762 | return 0; | |
763 | } | |
b0284aba | 764 | if (!IN_SET(errno, 0, ENOENT)) { |
1b992147 LP |
765 | log_error("Failed to check if group %s already exists: %m", i->name); |
766 | return -errno; | |
767 | } | |
768 | } | |
769 | ||
770 | /* Try to use the suggested numeric gid */ | |
771 | if (i->gid_set) { | |
772 | r = gid_is_ok(i->gid); | |
773 | if (r < 0) { | |
774 | log_error("Failed to verify gid " GID_FMT ": %s", i->gid, strerror(-r)); | |
775 | return r; | |
776 | } | |
777 | if (r == 0) { | |
778 | log_debug("Suggested group ID " GID_FMT " for %s already used.", i->gid, i->name); | |
779 | i->gid_set = false; | |
780 | } | |
781 | } | |
782 | ||
783 | /* Try to reuse the numeric uid, if there's one */ | |
784 | if (!i->gid_set && i->uid_set) { | |
785 | r = gid_is_ok((gid_t) i->uid); | |
786 | if (r < 0) { | |
787 | log_error("Failed to verify gid " GID_FMT ": %s", i->gid, strerror(-r)); | |
788 | return r; | |
789 | } | |
790 | if (r > 0) { | |
791 | i->gid = (gid_t) i->uid; | |
792 | i->gid_set = true; | |
793 | } | |
794 | } | |
795 | ||
796 | /* If that didn't work, try to read it from the specified path */ | |
797 | if (!i->gid_set) { | |
798 | gid_t c; | |
799 | ||
800 | if (read_id_from_file(i, NULL, &c) > 0) { | |
801 | ||
802 | if (c <= 0 || c > SYSTEM_GID_MAX) | |
803 | log_debug("Group ID " GID_FMT " of file not suitable for %s.", c, i->name); | |
804 | else { | |
805 | r = gid_is_ok(c); | |
806 | if (r < 0) { | |
807 | log_error("Failed to verify gid " GID_FMT ": %s", i->gid, strerror(-r)); | |
808 | return r; | |
809 | } else if (r > 0) { | |
810 | i->gid = c; | |
811 | i->gid_set = true; | |
812 | } else | |
813 | log_debug("Group ID " GID_FMT " of file for %s already used.", c, i->name); | |
814 | } | |
815 | } | |
816 | } | |
817 | ||
818 | /* And if that didn't work either, let's try to find a free one */ | |
819 | if (!i->gid_set) { | |
820 | for (; search_gid > 0; search_gid--) { | |
821 | r = gid_is_ok(search_gid); | |
822 | if (r < 0) { | |
823 | log_error("Failed to verify gid " GID_FMT ": %s", i->gid, strerror(-r)); | |
824 | return r; | |
825 | } else if (r > 0) | |
826 | break; | |
827 | } | |
828 | ||
829 | if (search_gid <= 0) { | |
830 | log_error("No free group ID available for %s.", i->name); | |
831 | return -E2BIG; | |
832 | } | |
833 | ||
834 | i->gid_set = true; | |
835 | i->gid = search_gid; | |
836 | ||
837 | search_gid--; | |
838 | } | |
839 | ||
840 | r = hashmap_ensure_allocated(&todo_gids, trivial_hash_func, trivial_compare_func); | |
841 | if (r < 0) | |
842 | return log_oom(); | |
843 | ||
844 | r = hashmap_put(todo_gids, GID_TO_PTR(i->gid), i); | |
845 | if (r < 0) | |
846 | return log_oom(); | |
847 | ||
c1b6b04f | 848 | i->todo_group = true; |
1b992147 LP |
849 | log_info("Creating group %s with gid " GID_FMT ".", i->name, i->gid); |
850 | ||
851 | return 0; | |
852 | } | |
853 | ||
854 | static int process_item(Item *i) { | |
855 | int r; | |
856 | ||
857 | assert(i); | |
858 | ||
859 | switch (i->type) { | |
860 | ||
861 | case ADD_USER: | |
862 | r = add_group(i); | |
863 | if (r < 0) | |
864 | return r; | |
865 | ||
866 | return add_user(i); | |
867 | ||
868 | case ADD_GROUP: { | |
869 | Item *j; | |
870 | ||
871 | j = hashmap_get(users, i->name); | |
872 | if (j) { | |
873 | /* There's already user to be created for this | |
874 | * name, let's process that in one step */ | |
875 | ||
876 | if (i->gid_set) { | |
877 | j->gid = i->gid; | |
878 | j->gid_set = true; | |
879 | } | |
880 | ||
881 | if (i->gid_path) { | |
882 | free(j->gid_path); | |
883 | j->gid_path = strdup(i->gid_path); | |
884 | if (!j->gid_path) | |
885 | return log_oom(); | |
886 | } | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
891 | return add_group(i); | |
892 | } | |
893 | } | |
894 | ||
895 | assert_not_reached("Unknown item type"); | |
896 | } | |
897 | ||
898 | static void item_free(Item *i) { | |
899 | ||
900 | if (!i) | |
901 | return; | |
902 | ||
903 | free(i->name); | |
904 | free(i->uid_path); | |
905 | free(i->gid_path); | |
906 | free(i->description); | |
907 | free(i); | |
908 | } | |
909 | ||
910 | DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free); | |
911 | ||
912 | static bool item_equal(Item *a, Item *b) { | |
913 | assert(a); | |
914 | assert(b); | |
915 | ||
916 | if (a->type != b->type) | |
917 | return false; | |
918 | ||
919 | if (!streq_ptr(a->name, b->name)) | |
920 | return false; | |
921 | ||
922 | if (!streq_ptr(a->uid_path, b->uid_path)) | |
923 | return false; | |
924 | ||
925 | if (!streq_ptr(a->gid_path, b->gid_path)) | |
926 | return false; | |
927 | ||
928 | if (!streq_ptr(a->description, b->description)) | |
929 | return false; | |
930 | ||
931 | if (a->uid_set != b->uid_set) | |
932 | return false; | |
933 | ||
934 | if (a->uid_set && a->uid != b->uid) | |
935 | return false; | |
936 | ||
937 | if (a->gid_set != b->gid_set) | |
938 | return false; | |
939 | ||
940 | if (a->gid_set && a->gid != b->gid) | |
941 | return false; | |
942 | ||
943 | return true; | |
944 | } | |
945 | ||
946 | static bool valid_user_group_name(const char *u) { | |
947 | const char *i; | |
948 | long sz; | |
949 | ||
950 | if (isempty(u) < 0) | |
951 | return false; | |
952 | ||
953 | if (!(u[0] >= 'a' && u[0] <= 'z') && | |
954 | !(u[0] >= 'A' && u[0] <= 'Z') && | |
955 | u[0] != '_') | |
956 | return false; | |
957 | ||
958 | for (i = u+1; *i; i++) { | |
959 | if (!(*i >= 'a' && *i <= 'z') && | |
960 | !(*i >= 'A' && *i <= 'Z') && | |
961 | !(*i >= '0' && *i <= '9') && | |
962 | *i != '_' && | |
963 | *i != '-') | |
964 | return false; | |
965 | } | |
966 | ||
967 | sz = sysconf(_SC_LOGIN_NAME_MAX); | |
968 | assert_se(sz > 0); | |
969 | ||
970 | if ((size_t) (i-u) > (size_t) sz) | |
971 | return false; | |
972 | ||
973 | return true; | |
974 | } | |
975 | ||
976 | static bool valid_gecos(const char *d) { | |
977 | ||
978 | if (!utf8_is_valid(d)) | |
979 | return false; | |
980 | ||
981 | if (strpbrk(d, ":\n")) | |
982 | return false; | |
983 | ||
984 | return true; | |
985 | } | |
986 | ||
987 | static int parse_line(const char *fname, unsigned line, const char *buffer) { | |
988 | ||
989 | static const Specifier specifier_table[] = { | |
990 | { 'm', specifier_machine_id, NULL }, | |
991 | { 'b', specifier_boot_id, NULL }, | |
992 | { 'H', specifier_host_name, NULL }, | |
993 | { 'v', specifier_kernel_release, NULL }, | |
994 | {} | |
995 | }; | |
996 | ||
997 | _cleanup_free_ char *action = NULL, *name = NULL, *id = NULL; | |
998 | _cleanup_(item_freep) Item *i = NULL; | |
999 | Item *existing; | |
1000 | Hashmap *h; | |
1001 | int r, n = -1; | |
1002 | ||
1003 | assert(fname); | |
1004 | assert(line >= 1); | |
1005 | assert(buffer); | |
1006 | ||
1007 | r = sscanf(buffer, | |
1008 | "%ms %ms %ms %n", | |
1009 | &action, | |
1010 | &name, | |
1011 | &id, | |
1012 | &n); | |
1013 | if (r < 2) { | |
1014 | log_error("[%s:%u] Syntax error.", fname, line); | |
1015 | return -EIO; | |
1016 | } | |
1017 | ||
1018 | if (strlen(action) != 1) { | |
1019 | log_error("[%s:%u] Unknown modifier '%s'", fname, line, action); | |
1020 | return -EINVAL; | |
1021 | } | |
1022 | ||
1023 | if (!IN_SET(action[0], ADD_USER, ADD_GROUP)) { | |
1024 | log_error("[%s:%u] Unknown command command type '%c'.", fname, line, action[0]); | |
1025 | return -EBADMSG; | |
1026 | } | |
1027 | ||
1028 | i = new0(Item, 1); | |
1029 | if (!i) | |
1030 | return log_oom(); | |
1031 | ||
1032 | i->type = action[0]; | |
1033 | ||
1034 | r = specifier_printf(name, specifier_table, NULL, &i->name); | |
1035 | if (r < 0) { | |
1036 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, name); | |
1037 | return r; | |
1038 | } | |
1039 | ||
1040 | if (!valid_user_group_name(i->name)) { | |
1041 | log_error("[%s:%u] '%s' is not a valid user or group name.", fname, line, i->name); | |
1042 | return -EINVAL; | |
1043 | } | |
1044 | ||
1045 | if (n >= 0) { | |
1046 | n += strspn(buffer+n, WHITESPACE); | |
1047 | if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) { | |
1048 | i->description = unquote(buffer+n, "\""); | |
1049 | if (!i->description) | |
1050 | return log_oom(); | |
1051 | ||
1052 | if (!valid_gecos(i->description)) { | |
1053 | log_error("[%s:%u] '%s' is not a valid GECOS field.", fname, line, i->description); | |
1054 | return -EINVAL; | |
1055 | } | |
1056 | } | |
1057 | } | |
1058 | ||
1059 | if (id && !streq(id, "-")) { | |
1060 | ||
1061 | if (path_is_absolute(id)) { | |
1062 | char *p; | |
1063 | ||
1064 | p = strdup(id); | |
1065 | if (!p) | |
1066 | return log_oom(); | |
1067 | ||
1068 | path_kill_slashes(p); | |
1069 | ||
1070 | if (i->type == ADD_USER) | |
1071 | i->uid_path = p; | |
1072 | else | |
1073 | i->gid_path = p; | |
1074 | ||
1075 | } else if (i->type == ADD_USER) { | |
1076 | r = parse_uid(id, &i->uid); | |
1077 | if (r < 0) { | |
1078 | log_error("Failed to parse UID: %s", id); | |
1079 | return -EBADMSG; | |
1080 | } | |
1081 | ||
1082 | i->uid_set = true; | |
1083 | ||
1084 | } else { | |
1085 | assert(i->type == ADD_GROUP); | |
1086 | ||
1087 | r = parse_gid(id, &i->gid); | |
1088 | if (r < 0) { | |
1089 | log_error("Failed to parse GID: %s", id); | |
1090 | return -EBADMSG; | |
1091 | } | |
1092 | ||
1093 | i->gid_set = true; | |
1094 | } | |
1095 | } | |
1096 | ||
1097 | if (i->type == ADD_USER) { | |
1098 | r = hashmap_ensure_allocated(&users, string_hash_func, string_compare_func); | |
1099 | h = users; | |
1100 | } else { | |
1101 | assert(i->type == ADD_GROUP); | |
1102 | r = hashmap_ensure_allocated(&groups, string_hash_func, string_compare_func); | |
1103 | h = groups; | |
1104 | } | |
1105 | if (r < 0) | |
1106 | return log_oom(); | |
1107 | ||
1108 | existing = hashmap_get(h, i->name); | |
1109 | if (existing) { | |
1110 | ||
1111 | /* Two identical items are fine */ | |
1112 | if (!item_equal(existing, i)) | |
1113 | log_warning("Two or more conflicting lines for %s configured, ignoring.", i->name); | |
1114 | ||
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | r = hashmap_put(h, i->name, i); | |
1119 | if (r < 0) { | |
1120 | log_error("Failed to insert item %s: %s", i->name, strerror(-r)); | |
1121 | return r; | |
1122 | } | |
1123 | ||
1124 | i = NULL; | |
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static int read_config_file(const char *fn, bool ignore_enoent) { | |
1129 | _cleanup_fclose_ FILE *f = NULL; | |
1130 | char line[LINE_MAX]; | |
1131 | unsigned v = 0; | |
1132 | int r; | |
1133 | ||
1134 | assert(fn); | |
1135 | ||
1136 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f); | |
1137 | if (r < 0) { | |
1138 | if (ignore_enoent && r == -ENOENT) | |
1139 | return 0; | |
1140 | ||
1141 | log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r)); | |
1142 | return r; | |
1143 | } | |
1144 | ||
1145 | FOREACH_LINE(line, f, break) { | |
1146 | char *l; | |
1147 | int k; | |
1148 | ||
1149 | v++; | |
1150 | ||
1151 | l = strstrip(line); | |
1152 | if (*l == '#' || *l == 0) | |
1153 | continue; | |
1154 | ||
1155 | k = parse_line(fn, v, l); | |
1156 | if (k < 0 && r == 0) | |
1157 | r = k; | |
1158 | } | |
1159 | ||
1160 | if (ferror(f)) { | |
1161 | log_error("Failed to read from file %s: %m", fn); | |
1162 | if (r == 0) | |
1163 | r = -EIO; | |
1164 | } | |
1165 | ||
1166 | return r; | |
1167 | } | |
1168 | ||
1169 | static int take_lock(void) { | |
1170 | ||
1171 | struct flock flock = { | |
1172 | .l_type = F_WRLCK, | |
1173 | .l_whence = SEEK_SET, | |
1174 | .l_start = 0, | |
1175 | .l_len = 0, | |
1176 | }; | |
1177 | ||
1178 | const char *path; | |
1179 | int fd, r; | |
1180 | ||
1181 | /* This is roughly the same as lckpwdf(), but not as awful. We | |
1182 | * don't want to use alarm() and signals, hence we implement | |
1183 | * our own trivial version of this. | |
1184 | * | |
1185 | * Note that shadow-utils also takes per-database locks in | |
1186 | * addition to lckpwdf(). However, we don't given that they | |
1187 | * are redundant as they they invoke lckpwdf() first and keep | |
1188 | * it during everything they do. The per-database locks are | |
1189 | * awfully racy, and thus we just won't do them. */ | |
1190 | ||
1191 | path = fix_root("/etc/.pwd.lock"); | |
1192 | fd = open(path, O_WRONLY|O_CREAT|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW, 0600); | |
1193 | if (fd < 0) | |
1194 | return -errno; | |
1195 | ||
1196 | r = fcntl(fd, F_SETLKW, &flock); | |
1197 | if (r < 0) { | |
1198 | safe_close(fd); | |
1199 | return -errno; | |
1200 | } | |
1201 | ||
1202 | return fd; | |
1203 | } | |
1204 | ||
1205 | static void free_database(Hashmap *by_name, Hashmap *by_id) { | |
1206 | char *name; | |
1207 | ||
1208 | for (;;) { | |
1209 | name = hashmap_first(by_id); | |
1210 | if (!name) | |
1211 | break; | |
1212 | ||
1213 | hashmap_remove(by_name, name); | |
1214 | ||
1215 | hashmap_steal_first_key(by_id); | |
1216 | free(name); | |
1217 | } | |
1218 | ||
1219 | while ((name = hashmap_steal_first_key(by_name))) | |
1220 | free(name); | |
1221 | ||
1222 | hashmap_free(by_name); | |
1223 | hashmap_free(by_id); | |
1224 | } | |
1225 | ||
1226 | static int help(void) { | |
1227 | ||
1228 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" | |
1229 | "Creates system user accounts.\n\n" | |
1230 | " -h --help Show this help\n" | |
1231 | " --version Show package version\n" | |
1232 | " --root=PATH Operate on an alternate filesystem root\n", | |
1233 | program_invocation_short_name); | |
1234 | ||
1235 | return 0; | |
1236 | } | |
1237 | ||
1238 | static int parse_argv(int argc, char *argv[]) { | |
1239 | ||
1240 | enum { | |
1241 | ARG_VERSION = 0x100, | |
1242 | ARG_ROOT, | |
1243 | }; | |
1244 | ||
1245 | static const struct option options[] = { | |
1246 | { "help", no_argument, NULL, 'h' }, | |
1247 | { "version", no_argument, NULL, ARG_VERSION }, | |
1248 | { "root", required_argument, NULL, ARG_ROOT }, | |
1249 | {} | |
1250 | }; | |
1251 | ||
1252 | int c; | |
1253 | ||
1254 | assert(argc >= 0); | |
1255 | assert(argv); | |
1256 | ||
1257 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) { | |
1258 | ||
1259 | switch (c) { | |
1260 | ||
1261 | case 'h': | |
1262 | return help(); | |
1263 | ||
1264 | case ARG_VERSION: | |
1265 | puts(PACKAGE_STRING); | |
1266 | puts(SYSTEMD_FEATURES); | |
1267 | return 0; | |
1268 | ||
1269 | case ARG_ROOT: | |
1270 | free(arg_root); | |
1271 | arg_root = path_make_absolute_cwd(optarg); | |
1272 | if (!arg_root) | |
1273 | return log_oom(); | |
1274 | ||
1275 | path_kill_slashes(arg_root); | |
1276 | break; | |
1277 | ||
1278 | case '?': | |
1279 | return -EINVAL; | |
1280 | ||
1281 | default: | |
1282 | assert_not_reached("Unhandled option"); | |
1283 | } | |
1284 | } | |
1285 | ||
1286 | return 1; | |
1287 | } | |
1288 | ||
1289 | int main(int argc, char *argv[]) { | |
1290 | ||
1291 | _cleanup_close_ int lock = -1; | |
1292 | Iterator iterator; | |
1293 | int r, k; | |
1294 | Item *i; | |
1295 | ||
1296 | r = parse_argv(argc, argv); | |
1297 | if (r <= 0) | |
1298 | goto finish; | |
1299 | ||
1300 | log_set_target(LOG_TARGET_AUTO); | |
1301 | log_parse_environment(); | |
1302 | log_open(); | |
1303 | ||
1304 | umask(0022); | |
1305 | ||
1306 | r = 0; | |
1307 | ||
1308 | if (optind < argc) { | |
1309 | int j; | |
1310 | ||
1311 | for (j = optind; j < argc; j++) { | |
1312 | k = read_config_file(argv[j], false); | |
1313 | if (k < 0 && r == 0) | |
1314 | r = k; | |
1315 | } | |
1316 | } else { | |
1317 | _cleanup_strv_free_ char **files = NULL; | |
1318 | char **f; | |
1319 | ||
1320 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); | |
1321 | if (r < 0) { | |
1322 | log_error("Failed to enumerate sysusers.d files: %s", strerror(-r)); | |
1323 | goto finish; | |
1324 | } | |
1325 | ||
1326 | STRV_FOREACH(f, files) { | |
1327 | k = read_config_file(*f, true); | |
1328 | if (k < 0 && r == 0) | |
1329 | r = k; | |
1330 | } | |
1331 | } | |
1332 | ||
1333 | lock = take_lock(); | |
1334 | if (lock < 0) { | |
1335 | log_error("Failed to take lock: %s", strerror(-lock)); | |
1336 | goto finish; | |
1337 | } | |
1338 | ||
1339 | r = load_user_database(); | |
1340 | if (r < 0) { | |
1341 | log_error("Failed to load user database: %s", strerror(-r)); | |
1342 | goto finish; | |
1343 | } | |
1344 | ||
1345 | r = load_group_database(); | |
1346 | if (r < 0) { | |
1347 | log_error("Failed to read group database: %s", strerror(-r)); | |
1348 | goto finish; | |
1349 | } | |
1350 | ||
1351 | HASHMAP_FOREACH(i, groups, iterator) | |
1352 | process_item(i); | |
1353 | ||
1354 | HASHMAP_FOREACH(i, users, iterator) | |
1355 | process_item(i); | |
1356 | ||
1357 | r = write_files(); | |
1358 | if (r < 0) | |
1359 | log_error("Failed to write files: %s", strerror(-r)); | |
1360 | ||
1361 | finish: | |
1362 | while ((i = hashmap_steal_first(groups))) | |
1363 | item_free(i); | |
1364 | ||
1365 | while ((i = hashmap_steal_first(users))) | |
1366 | item_free(i); | |
1367 | ||
1368 | hashmap_free(groups); | |
1369 | hashmap_free(users); | |
1370 | hashmap_free(todo_uids); | |
1371 | hashmap_free(todo_gids); | |
1372 | ||
1373 | free_database(database_user, database_uid); | |
1374 | free_database(database_group, database_gid); | |
1375 | ||
1376 | free(arg_root); | |
1377 | ||
1378 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1379 | } |