Bug Summary

File:build-scan/../src/sysusers/sysusers.c
Warning:line 728, column 23
Null pointer passed to 1st parameter expecting 'nonnull'

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name sysusers.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -menable-no-infs -menable-no-nans -menable-unsafe-fp-math -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/12.0.0 -include config.h -I systemd-sysusers.p -I . -I .. -I src/basic -I ../src/basic -I src/shared -I ../src/shared -I src/systemd -I ../src/systemd -I src/journal -I ../src/journal -I src/journal-remote -I ../src/journal-remote -I src/nspawn -I ../src/nspawn -I src/resolve -I ../src/resolve -I src/timesync -I ../src/timesync -I ../src/time-wait-sync -I src/login -I ../src/login -I src/udev -I ../src/udev -I src/libudev -I ../src/libudev -I src/core -I ../src/core -I ../src/libsystemd/sd-bus -I ../src/libsystemd/sd-device -I ../src/libsystemd/sd-hwdb -I ../src/libsystemd/sd-id128 -I ../src/libsystemd/sd-netlink -I ../src/libsystemd/sd-network -I src/libsystemd-network -I ../src/libsystemd-network -D _FILE_OFFSET_BITS=64 -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/12.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wwrite-strings -Wno-unused-parameter -Wno-missing-field-initializers -Wno-unused-result -Wno-format-signedness -Wno-error=nonnull -std=gnu99 -fconst-strings -fdebug-compilation-dir /home/mrc0mmand/repos/@redhat-plumbers/systemd-rhel8/build-scan -ferror-limit 19 -fvisibility hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcolor-diagnostics -analyzer-output=html -faddrsig -o /tmp/scan-build-2021-07-16-221226-1465241-1 -x c ../src/sysusers/sysusers.c
1/* SPDX-License-Identifier: LGPL-2.1+ */
2
3#include <getopt.h>
4#include <utmp.h>
5
6#include "alloc-util.h"
7#include "conf-files.h"
8#include "copy.h"
9#include "def.h"
10#include "fd-util.h"
11#include "fileio-label.h"
12#include "format-util.h"
13#include "fs-util.h"
14#include "hashmap.h"
15#include "pager.h"
16#include "path-util.h"
17#include "selinux-util.h"
18#include "smack-util.h"
19#include "specifier.h"
20#include "string-util.h"
21#include "strv.h"
22#include "terminal-util.h"
23#include "uid-range.h"
24#include "user-util.h"
25#include "utf8.h"
26#include "util.h"
27
28typedef enum ItemType {
29 ADD_USER = 'u',
30 ADD_GROUP = 'g',
31 ADD_MEMBER = 'm',
32 ADD_RANGE = 'r',
33} ItemType;
34
35typedef struct Item {
36 ItemType type;
37
38 char *name;
39 char *uid_path;
40 char *gid_path;
41 char *description;
42 char *home;
43 char *shell;
44
45 gid_t gid;
46 uid_t uid;
47
48 bool_Bool gid_set:1;
49
50 /* When set the group with the specified gid must exist
51 * and the check if a uid clashes with the gid is skipped.
52 */
53 bool_Bool id_set_strict:1;
54
55 bool_Bool uid_set:1;
56
57 bool_Bool todo_user:1;
58 bool_Bool todo_group:1;
59} Item;
60
61static char *arg_root = NULL((void*)0);
62static bool_Bool arg_cat_config = false0;
63static const char *arg_replace = NULL((void*)0);
64static bool_Bool arg_inline = false0;
65static bool_Bool arg_no_pager = false0;
66
67static OrderedHashmap *users = NULL((void*)0), *groups = NULL((void*)0);
68static OrderedHashmap *todo_uids = NULL((void*)0), *todo_gids = NULL((void*)0);
69static OrderedHashmap *members = NULL((void*)0);
70
71static Hashmap *database_uid = NULL((void*)0), *database_user = NULL((void*)0);
72static Hashmap *database_gid = NULL((void*)0), *database_group = NULL((void*)0);
73
74static uid_t search_uid = UID_INVALID((uid_t) -1);
75static UidRange *uid_range = NULL((void*)0);
76static unsigned n_uid_range = 0;
77
78static int load_user_database(void) {
79 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *f = NULL((void*)0);
80 const char *passwd_path;
81 struct passwd *pw;
82 int r;
83
84 passwd_path = prefix_roota(arg_root, "/etc/passwd")({ const char* _path = ("/etc/passwd"), *_root = (arg_root), *
_ret; char *_p, *_n; size_t _l; while (_path[0] == '/' &&
_path[1] == '/') _path ++; if (empty_or_root(_root)) _ret = _path
; else { _l = strlen(_root) + 1 + strlen(_path) + 1; _n = __builtin_alloca
(_l); _p = stpcpy(_n, _root); while (_p > _n && _p
[-1] == '/') _p--; if (_path[0] != '/') *(_p++) = '/'; strcpy
(_p, _path); _ret = _n; } _ret; });
85 f = fopen(passwd_path, "re");
86 if (!f)
87 return errno(*__errno_location ()) == ENOENT2 ? 0 : -errno(*__errno_location ());
88
89 r = hashmap_ensure_allocated(&database_user, &string_hash_ops)internal_hashmap_ensure_allocated(&database_user, &string_hash_ops
);
90 if (r < 0)
91 return r;
92
93 r = hashmap_ensure_allocated(&database_uid, NULL)internal_hashmap_ensure_allocated(&database_uid, ((void*)
0) );
94 if (r < 0)
95 return r;
96
97 while ((r = fgetpwent_sane(f, &pw)) > 0) {
98 char *n;
99 int k, q;
100
101 n = strdup(pw->pw_name);
102 if (!n)
103 return -ENOMEM12;
104
105 k = hashmap_put(database_user, n, UID_TO_PTR(pw->pw_uid)((void*) (((uintptr_t) (pw->pw_uid))+1)));
106 if (k < 0 && k != -EEXIST17) {
107 free(n);
108 return k;
109 }
110
111 q = hashmap_put(database_uid, UID_TO_PTR(pw->pw_uid)((void*) (((uintptr_t) (pw->pw_uid))+1)), n);
112 if (q < 0 && q != -EEXIST17) {
113 if (k <= 0)
114 free(n);
115 return q;
116 }
117
118 if (k <= 0 && q <= 0)
119 free(n);
120 }
121 return r;
122}
123
124static int load_group_database(void) {
125 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *f = NULL((void*)0);
126 const char *group_path;
127 struct group *gr;
128 int r;
129
130 group_path = prefix_roota(arg_root, "/etc/group")({ const char* _path = ("/etc/group"), *_root = (arg_root), *
_ret; char *_p, *_n; size_t _l; while (_path[0] == '/' &&
_path[1] == '/') _path ++; if (empty_or_root(_root)) _ret = _path
; else { _l = strlen(_root) + 1 + strlen(_path) + 1; _n = __builtin_alloca
(_l); _p = stpcpy(_n, _root); while (_p > _n && _p
[-1] == '/') _p--; if (_path[0] != '/') *(_p++) = '/'; strcpy
(_p, _path); _ret = _n; } _ret; });
131 f = fopen(group_path, "re");
132 if (!f)
133 return errno(*__errno_location ()) == ENOENT2 ? 0 : -errno(*__errno_location ());
134
135 r = hashmap_ensure_allocated(&database_group, &string_hash_ops)internal_hashmap_ensure_allocated(&database_group, &string_hash_ops
);
136 if (r < 0)
137 return r;
138
139 r = hashmap_ensure_allocated(&database_gid, NULL)internal_hashmap_ensure_allocated(&database_gid, ((void*)
0) );
140 if (r < 0)
141 return r;
142
143 errno(*__errno_location ()) = 0;
144 while ((gr = fgetgrent(f))) {
145 char *n;
146 int k, q;
147
148 n = strdup(gr->gr_name);
149 if (!n)
150 return -ENOMEM12;
151
152 k = hashmap_put(database_group, n, GID_TO_PTR(gr->gr_gid)((void*) (((uintptr_t) (gr->gr_gid))+1)));
153 if (k < 0 && k != -EEXIST17) {
154 free(n);
155 return k;
156 }
157
158 q = hashmap_put(database_gid, GID_TO_PTR(gr->gr_gid)((void*) (((uintptr_t) (gr->gr_gid))+1)), n);
159 if (q < 0 && q != -EEXIST17) {
160 if (k <= 0)
161 free(n);
162 return q;
163 }
164
165 if (k <= 0 && q <= 0)
166 free(n);
167
168 errno(*__errno_location ()) = 0;
169 }
170 if (!IN_SET(errno, 0, ENOENT)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, 2})/sizeof(int)]; switch((*__errno_location
())) { case 0: case 2: _found = 1; break; default: break; } _found
; }))
171 return -errno(*__errno_location ());
172
173 return 0;
174}
175
176static int make_backup(const char *target, const char *x) {
177 _cleanup_close___attribute__((cleanup(closep))) int src = -1;
178 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *dst = NULL((void*)0);
179 _cleanup_free___attribute__((cleanup(freep))) char *temp = NULL((void*)0);
180 char *backup;
181 struct timespec ts[2];
182 struct stat st;
183 int r;
184
185 src = open(x, O_RDONLY00|O_CLOEXEC02000000|O_NOCTTY0400);
186 if (src < 0) {
187 if (errno(*__errno_location ()) == ENOENT2) /* No backup necessary... */
188 return 0;
189
190 return -errno(*__errno_location ());
191 }
192
193 if (fstat(src, &st) < 0)
194 return -errno(*__errno_location ());
195
196 r = fopen_temporary_label(target, x, &dst, &temp);
197 if (r < 0)
198 return r;
199
200 r = copy_bytes(src, fileno(dst), (uint64_t) -1, COPY_REFLINK);
201 if (r < 0)
202 goto fail;
203
204 /* Don't fail on chmod() or chown(). If it stays owned by us
205 * and/or unreadable by others, then it isn't too bad... */
206
207 backup = strjoina(x, "-")({ const char *_appendees_[] = { x, "-" }; char *_d_, *_p_; size_t
_len_ = 0; size_t _i_; for (_i_ = 0; _i_ < __extension__ (
__builtin_choose_expr( !__builtin_types_compatible_p(typeof(_appendees_
), typeof(&*(_appendees_))), sizeof(_appendees_)/sizeof((
_appendees_)[0]), ((void)0))) && _appendees_[_i_]; _i_
++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
(_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
208
209 /* Copy over the access mask */
210 r = fchmod_and_chown(fileno(dst), st.st_mode & 07777, st.st_uid, st.st_gid);
211 if (r < 0)
212 log_warning_errno(r, "Failed to change access mode or ownership of %s: %m", backup)({ int _level = ((4)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 212, __func__, "Failed to change access mode or ownership of %s: %m"
, backup) : -abs(_e); });
213
214 ts[0] = st.st_atim;
215 ts[1] = st.st_mtim;
216 if (futimens(fileno(dst), ts) < 0)
217 log_warning_errno(errno, "Failed to fix access and modification time of %s: %m", backup)({ int _level = ((4)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/sysusers/sysusers.c", 217, __func__
, "Failed to fix access and modification time of %s: %m", backup
) : -abs(_e); });
218
219 r = fflush_sync_and_check(dst);
220 if (r < 0)
221 goto fail;
222
223 if (rename(temp, backup) < 0) {
224 r = -errno(*__errno_location ());
225 goto fail;
226 }
227
228 return 0;
229
230fail:
231 unlink(temp);
232 return r;
233}
234
235static int putgrent_with_members(const struct group *gr, FILE *group) {
236 char **a;
237
238 assert(gr)do { if ((__builtin_expect(!!(!(gr)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("gr"), "../src/sysusers/sysusers.c", 238
, __PRETTY_FUNCTION__); } while (0);
239 assert(group)do { if ((__builtin_expect(!!(!(group)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("group"), "../src/sysusers/sysusers.c", 239
, __PRETTY_FUNCTION__); } while (0);
240
241 a = ordered_hashmap_get(members, gr->gr_name);
242 if (a) {
243 _cleanup_strv_free___attribute__((cleanup(strv_freep))) char **l = NULL((void*)0);
244 bool_Bool added = false0;
245 char **i;
246
247 l = strv_copy(gr->gr_mem);
248 if (!l)
249 return -ENOMEM12;
250
251 STRV_FOREACH(i, a)for ((i) = (a); (i) && *(i); (i)++) {
252 if (strv_find(l, *i))
253 continue;
254
255 if (strv_extend(&l, *i) < 0)
256 return -ENOMEM12;
257
258 added = true1;
259 }
260
261 if (added) {
262 struct group t;
263 int r;
264
265 strv_uniq(l);
266 strv_sort(l);
267
268 t = *gr;
269 t.gr_mem = l;
270
271 r = putgrent_sane(&t, group);
272 return r < 0 ? r : 1;
273 }
274 }
275
276 return putgrent_sane(gr, group);
277}
278
279#if ENABLE_GSHADOW1
280static int putsgent_with_members(const struct sgrp *sg, FILE *gshadow) {
281 char **a;
282
283 assert(sg)do { if ((__builtin_expect(!!(!(sg)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("sg"), "../src/sysusers/sysusers.c", 283
, __PRETTY_FUNCTION__); } while (0);
284 assert(gshadow)do { if ((__builtin_expect(!!(!(gshadow)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("gshadow"), "../src/sysusers/sysusers.c"
, 284, __PRETTY_FUNCTION__); } while (0);
285
286 a = ordered_hashmap_get(members, sg->sg_namp);
287 if (a) {
288 _cleanup_strv_free___attribute__((cleanup(strv_freep))) char **l = NULL((void*)0);
289 bool_Bool added = false0;
290 char **i;
291
292 l = strv_copy(sg->sg_mem);
293 if (!l)
294 return -ENOMEM12;
295
296 STRV_FOREACH(i, a)for ((i) = (a); (i) && *(i); (i)++) {
297 if (strv_find(l, *i))
298 continue;
299
300 if (strv_extend(&l, *i) < 0)
301 return -ENOMEM12;
302
303 added = true1;
304 }
305
306 if (added) {
307 struct sgrp t;
308 int r;
309
310 strv_uniq(l);
311 strv_sort(l);
312
313 t = *sg;
314 t.sg_mem = l;
315
316 r = putsgent_sane(&t, gshadow);
317 return r < 0 ? r : 1;
318 }
319 }
320
321 return putsgent_sane(sg, gshadow);
322}
323#endif
324
325static int sync_rights(FILE *from, FILE *to) {
326 struct stat st;
327
328 if (fstat(fileno(from), &st) < 0)
329 return -errno(*__errno_location ());
330
331 return fchmod_and_chown(fileno(to), st.st_mode & 07777, st.st_uid, st.st_gid);
332}
333
334static int rename_and_apply_smack(const char *temp_path, const char *dest_path) {
335 int r = 0;
336 if (rename(temp_path, dest_path) < 0)
337 return -errno(*__errno_location ());
338
339#ifdef SMACK_RUN_LABEL
340 r = mac_smack_apply(dest_path, SMACK_ATTR_ACCESS, SMACK_FLOOR_LABEL"_");
341 if (r < 0)
342 return r;
343#endif
344 return r;
345}
346
347static const char* default_shell(uid_t uid) {
348 return uid == 0 ? "/bin/sh" : "/sbin/nologin";
349}
350
351static int write_temporary_passwd(const char *passwd_path, FILE **tmpfile, char **tmpfile_path) {
352 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *original = NULL((void*)0), *passwd = NULL((void*)0);
353 _cleanup_(unlink_and_freep)__attribute__((cleanup(unlink_and_freep))) char *passwd_tmp = NULL((void*)0);
354 struct passwd *pw = NULL((void*)0);
355 Iterator iterator;
356 Item *i;
357 int r;
358
359 if (ordered_hashmap_size(todo_uids) == 0)
360 return 0;
361
362 r = fopen_temporary_label("/etc/passwd", passwd_path, &passwd, &passwd_tmp);
363 if (r < 0)
364 return r;
365
366 original = fopen(passwd_path, "re");
367 if (original) {
368
369 r = sync_rights(original, passwd);
370 if (r < 0)
371 return r;
372
373 while ((r = fgetpwent_sane(original, &pw)) > 0) {
374
375 i = ordered_hashmap_get(users, pw->pw_name);
376 if (i && i->todo_user) {
377 log_error("%s: User \"%s\" already exists.", passwd_path, pw->pw_name)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 377, __func__, "%s: User \"%s\" already exists."
, passwd_path, pw->pw_name) : -abs(_e); });
378 return -EEXIST17;
379 }
380
381 if (ordered_hashmap_contains(todo_uids, UID_TO_PTR(pw->pw_uid)((void*) (((uintptr_t) (pw->pw_uid))+1)))) {
382 log_error("%s: Detected collision for UID " UID_FMT ".", passwd_path, pw->pw_uid)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 382, __func__, "%s: Detected collision for UID "
"%" "u" ".", passwd_path, pw->pw_uid) : -abs(_e); });
383 return -EEXIST17;
384 }
385
386 /* Make sure we keep the NIS entries (if any) at the end. */
387 if (IN_SET(pw->pw_name[0], '+', '-')({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){'+', '-'})/sizeof(int)]; switch(pw->pw_name
[0]) { case '+': case '-': _found = 1; break; default: break;
} _found; }))
388 break;
389
390 r = putpwent_sane(pw, passwd);
391 if (r < 0)
392 return r;
393 }
394 if (r < 0)
395 return r;
396
397 } else {
398 if (errno(*__errno_location ()) != ENOENT2)
399 return -errno(*__errno_location ());
400 if (fchmod(fileno(passwd), 0644) < 0)
401 return -errno(*__errno_location ());
402 }
403
404 ORDERED_HASHMAP_FOREACH(i, todo_uids, iterator)for ((iterator) = ((Iterator) { .idx = ((2147483647 *2U +1U) -
1), .next_key = ((void*)0) }); ordered_hashmap_iterate((todo_uids
), &(iterator), (void**)&(i), ((void*)0)); ) {
405 struct passwd n = {
406 .pw_name = i->name,
407 .pw_uid = i->uid,
408 .pw_gid = i->gid,
409 .pw_gecos = i->description,
410
411 /* "x" means the password is stored in the shadow file */
412 .pw_passwd = (char*) "x",
413
414 /* We default to the root directory as home */
415 .pw_dir = i->home ? i->home : (char*) "/",
416
417 /* Initialize the shell to nologin, with one exception:
418 * for root we patch in something special */
419 .pw_shell = i->shell ?: (char*) default_shell(i->uid),
420 };
421
422 r = putpwent_sane(&n, passwd);
423 if (r < 0)
424 return r;
425 }
426
427 /* Append the remaining NIS entries if any */
428 while (pw) {
429 r = putpwent_sane(pw, passwd);
430 if (r < 0)
431 return r;
432
433 r = fgetpwent_sane(original, &pw);
434 if (r < 0)
435 return r;
436 if (r == 0)
437 break;
438 }
439
440 r = fflush_and_check(passwd);
441 if (r < 0)
442 return r;
443
444 *tmpfile = TAKE_PTR(passwd)({ typeof(passwd) _ptr_ = (passwd); (passwd) = ((void*)0); _ptr_
; });
445 *tmpfile_path = TAKE_PTR(passwd_tmp)({ typeof(passwd_tmp) _ptr_ = (passwd_tmp); (passwd_tmp) = ((
void*)0); _ptr_; });
446
447 return 0;
448}
449
450static int write_temporary_shadow(const char *shadow_path, FILE **tmpfile, char **tmpfile_path) {
451 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *original = NULL((void*)0), *shadow = NULL((void*)0);
452 _cleanup_(unlink_and_freep)__attribute__((cleanup(unlink_and_freep))) char *shadow_tmp = NULL((void*)0);
453 struct spwd *sp = NULL((void*)0);
454 Iterator iterator;
455 long lstchg;
456 Item *i;
457 int r;
458
459 if (ordered_hashmap_size(todo_uids) == 0)
460 return 0;
461
462 r = fopen_temporary_label("/etc/shadow", shadow_path, &shadow, &shadow_tmp);
463 if (r < 0)
464 return r;
465
466 lstchg = (long) (now(CLOCK_REALTIME0) / USEC_PER_DAY((usec_t) (24ULL*((usec_t) (60ULL*((usec_t) (60ULL*((usec_t) 1000000ULL
))))))));
467
468 original = fopen(shadow_path, "re");
469 if (original) {
470
471 r = sync_rights(original, shadow);
472 if (r < 0)
473 return r;
474
475 while ((r = fgetspent_sane(original, &sp)) > 0) {
476
477 i = ordered_hashmap_get(users, sp->sp_namp);
478 if (i && i->todo_user) {
479 /* we will update the existing entry */
480 sp->sp_lstchg = lstchg;
481
482 /* only the /etc/shadow stage is left, so we can
483 * safely remove the item from the todo set */
484 i->todo_user = false0;
485 ordered_hashmap_remove(todo_uids, UID_TO_PTR(i->uid)((void*) (((uintptr_t) (i->uid))+1)));
486 }
487
488 /* Make sure we keep the NIS entries (if any) at the end. */
489 if (IN_SET(sp->sp_namp[0], '+', '-')({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){'+', '-'})/sizeof(int)]; switch(sp->sp_namp
[0]) { case '+': case '-': _found = 1; break; default: break;
} _found; }))
490 break;
491
492 r = putspent_sane(sp, shadow);
493 if (r < 0)
494 return r;
495 }
496 if (r < 0)
497 return r;
498
499 } else {
500 if (errno(*__errno_location ()) != ENOENT2)
501 return -errno(*__errno_location ());
502 if (fchmod(fileno(shadow), 0000) < 0)
503 return -errno(*__errno_location ());
504 }
505
506 ORDERED_HASHMAP_FOREACH(i, todo_uids, iterator)for ((iterator) = ((Iterator) { .idx = ((2147483647 *2U +1U) -
1), .next_key = ((void*)0) }); ordered_hashmap_iterate((todo_uids
), &(iterator), (void**)&(i), ((void*)0)); ) {
507 struct spwd n = {
508 .sp_namp = i->name,
509 .sp_pwdp = (char*) "!!",
510 .sp_lstchg = lstchg,
511 .sp_min = -1,
512 .sp_max = -1,
513 .sp_warn = -1,
514 .sp_inact = -1,
515 .sp_expire = -1,
516 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
517 };
518
519 r = putspent_sane(&n, shadow);
520 if (r < 0)
521 return r;
522 }
523
524 /* Append the remaining NIS entries if any */
525 while (sp) {
526 r = putspent_sane(sp, shadow);
527 if (r < 0)
528 return r;
529
530 r = fgetspent_sane(original, &sp);
531 if (r < 0)
532 return r;
533 if (r == 0)
534 break;
535 }
536 if (!IN_SET(errno, 0, ENOENT)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, 2})/sizeof(int)]; switch((*__errno_location
())) { case 0: case 2: _found = 1; break; default: break; } _found
; }))
537 return -errno(*__errno_location ());
538
539 r = fflush_sync_and_check(shadow);
540 if (r < 0)
541 return r;
542
543 *tmpfile = TAKE_PTR(shadow)({ typeof(shadow) _ptr_ = (shadow); (shadow) = ((void*)0); _ptr_
; });
544 *tmpfile_path = TAKE_PTR(shadow_tmp)({ typeof(shadow_tmp) _ptr_ = (shadow_tmp); (shadow_tmp) = ((
void*)0); _ptr_; });
545
546 return 0;
547}
548
549static int write_temporary_group(const char *group_path, FILE **tmpfile, char **tmpfile_path) {
550 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *original = NULL((void*)0), *group = NULL((void*)0);
551 _cleanup_(unlink_and_freep)__attribute__((cleanup(unlink_and_freep))) char *group_tmp = NULL((void*)0);
552 bool_Bool group_changed = false0;
553 struct group *gr = NULL((void*)0);
554 Iterator iterator;
555 Item *i;
556 int r;
557
558 if (ordered_hashmap_size(todo_gids) == 0 && ordered_hashmap_size(members) == 0)
559 return 0;
560
561 r = fopen_temporary_label("/etc/group", group_path, &group, &group_tmp);
562 if (r < 0)
563 return r;
564
565 original = fopen(group_path, "re");
566 if (original) {
567
568 r = sync_rights(original, group);
569 if (r < 0)
570 return r;
571
572 while ((r = fgetgrent_sane(original, &gr)) > 0) {
573 /* Safety checks against name and GID collisions. Normally,
574 * this should be unnecessary, but given that we look at the
575 * entries anyway here, let's make an extra verification
576 * step that we don't generate duplicate entries. */
577
578 i = ordered_hashmap_get(groups, gr->gr_name);
579 if (i && i->todo_group) {
580 log_error("%s: Group \"%s\" already exists.", group_path, gr->gr_name)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 580, __func__, "%s: Group \"%s\" already exists."
, group_path, gr->gr_name) : -abs(_e); });
581 return -EEXIST17;
582 }
583
584 if (ordered_hashmap_contains(todo_gids, GID_TO_PTR(gr->gr_gid)((void*) (((uintptr_t) (gr->gr_gid))+1)))) {
585 log_error("%s: Detected collision for GID " GID_FMT ".", group_path, gr->gr_gid)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 585, __func__, "%s: Detected collision for GID "
"%" "u" ".", group_path, gr->gr_gid) : -abs(_e); });
586 return -EEXIST17;
587 }
588
589 /* Make sure we keep the NIS entries (if any) at the end. */
590 if (IN_SET(gr->gr_name[0], '+', '-')({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){'+', '-'})/sizeof(int)]; switch(gr->gr_name
[0]) { case '+': case '-': _found = 1; break; default: break;
} _found; }))
591 break;
592
593 r = putgrent_with_members(gr, group);
594 if (r < 0)
595 return r;
596 if (r > 0)
597 group_changed = true1;
598 }
599 if (r < 0)
600 return r;
601
602 } else {
603 if (errno(*__errno_location ()) != ENOENT2)
604 return -errno(*__errno_location ());
605 if (fchmod(fileno(group), 0644) < 0)
606 return -errno(*__errno_location ());
607 }
608
609 ORDERED_HASHMAP_FOREACH(i, todo_gids, iterator)for ((iterator) = ((Iterator) { .idx = ((2147483647 *2U +1U) -
1), .next_key = ((void*)0) }); ordered_hashmap_iterate((todo_gids
), &(iterator), (void**)&(i), ((void*)0)); ) {
610 struct group n = {
611 .gr_name = i->name,
612 .gr_gid = i->gid,
613 .gr_passwd = (char*) "x",
614 };
615
616 r = putgrent_with_members(&n, group);
617 if (r < 0)
618 return r;
619
620 group_changed = true1;
621 }
622
623 /* Append the remaining NIS entries if any */
624 while (gr) {
625 r = putgrent_sane(gr, group);
626 if (r < 0)
627 return r;
628
629 r = fgetgrent_sane(original, &gr);
630 if (r < 0)
631 return r;
632 if (r == 0)
633 break;
634 }
635
636 r = fflush_sync_and_check(group);
637 if (r < 0)
638 return r;
639
640 if (group_changed) {
641 *tmpfile = TAKE_PTR(group)({ typeof(group) _ptr_ = (group); (group) = ((void*)0); _ptr_
; });
642 *tmpfile_path = TAKE_PTR(group_tmp)({ typeof(group_tmp) _ptr_ = (group_tmp); (group_tmp) = ((void
*)0); _ptr_; });
643 }
644 return 0;
645}
646
647static int write_temporary_gshadow(const char * gshadow_path, FILE **tmpfile, char **tmpfile_path) {
648#if ENABLE_GSHADOW1
649 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *original = NULL((void*)0), *gshadow = NULL((void*)0);
650 _cleanup_(unlink_and_freep)__attribute__((cleanup(unlink_and_freep))) char *gshadow_tmp = NULL((void*)0);
651 bool_Bool group_changed = false0;
652 Iterator iterator;
653 Item *i;
654 int r;
655
656 if (ordered_hashmap_size(todo_gids) == 0 && ordered_hashmap_size(members) == 0)
657 return 0;
658
659 r = fopen_temporary_label("/etc/gshadow", gshadow_path, &gshadow, &gshadow_tmp);
660 if (r < 0)
661 return r;
662
663 original = fopen(gshadow_path, "re");
664 if (original) {
665 struct sgrp *sg;
666
667 r = sync_rights(original, gshadow);
668 if (r < 0)
669 return r;
670
671 while ((r = fgetsgent_sane(original, &sg)) > 0) {
672
673 i = ordered_hashmap_get(groups, sg->sg_namp);
674 if (i && i->todo_group) {
675 log_error("%s: Group \"%s\" already exists.", gshadow_path, sg->sg_namp)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 675, __func__, "%s: Group \"%s\" already exists."
, gshadow_path, sg->sg_namp) : -abs(_e); });
676 return -EEXIST17;
677 }
678
679 r = putsgent_with_members(sg, gshadow);
680 if (r < 0)
681 return r;
682 if (r > 0)
683 group_changed = true1;
684 }
685 if (r < 0)
686 return r;
687
688 } else {
689 if (errno(*__errno_location ()) != ENOENT2)
690 return -errno(*__errno_location ());
691 if (fchmod(fileno(gshadow), 0000) < 0)
692 return -errno(*__errno_location ());
693 }
694
695 ORDERED_HASHMAP_FOREACH(i, todo_gids, iterator)for ((iterator) = ((Iterator) { .idx = ((2147483647 *2U +1U) -
1), .next_key = ((void*)0) }); ordered_hashmap_iterate((todo_gids
), &(iterator), (void**)&(i), ((void*)0)); ) {
696 struct sgrp n = {
697 .sg_namp = i->name,
698 .sg_passwd = (char*) "!!",
699 };
700
701 r = putsgent_with_members(&n, gshadow);
702 if (r < 0)
703 return r;
704
705 group_changed = true1;
706 }
707
708 r = fflush_sync_and_check(gshadow);
709 if (r < 0)
710 return r;
711
712 if (group_changed) {
713 *tmpfile = TAKE_PTR(gshadow)({ typeof(gshadow) _ptr_ = (gshadow); (gshadow) = ((void*)0);
_ptr_; });
714 *tmpfile_path = TAKE_PTR(gshadow_tmp)({ typeof(gshadow_tmp) _ptr_ = (gshadow_tmp); (gshadow_tmp) =
((void*)0); _ptr_; });
715 }
716 return 0;
717#else
718 return 0;
719#endif
720}
721
722static int write_files(void) {
723 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *passwd = NULL((void*)0), *group = NULL((void*)0), *shadow = NULL((void*)0), *gshadow = NULL((void*)0);
724 _cleanup_(unlink_and_freep)__attribute__((cleanup(unlink_and_freep))) char *passwd_tmp = NULL((void*)0), *group_tmp = NULL((void*)0), *shadow_tmp = NULL((void*)0), *gshadow_tmp = NULL((void*)0);
725 const char *passwd_path = NULL((void*)0), *group_path = NULL((void*)0), *shadow_path = NULL((void*)0), *gshadow_path = NULL((void*)0);
726 int r;
727
728 passwd_path = prefix_roota(arg_root, "/etc/passwd")({ const char* _path = ("/etc/passwd"), *_root = (arg_root), *
_ret; char *_p, *_n; size_t _l; while (_path[0] == '/' &&
_path[1] == '/') _path ++; if (empty_or_root(_root)) _ret = _path
; else { _l = strlen(_root) + 1 + strlen(_path) + 1; _n = __builtin_alloca
(_l); _p = stpcpy(_n, _root); while (_p > _n && _p
[-1] == '/') _p--; if (_path[0] != '/') *(_p++) = '/'; strcpy
(_p, _path); _ret = _n; } _ret; });
23
←
'_root' initialized to a null pointer value
→
24
←
Loop condition is false. Execution continues on line 728
→
25
←
Assuming the condition is false
→
26
←
Taking false branch
→
27
←
Null pointer passed to 1st parameter expecting 'nonnull'
729 shadow_path = prefix_roota(arg_root, "/etc/shadow")({ const char* _path = ("/etc/shadow"), *_root = (arg_root), *
_ret; char *_p, *_n; size_t _l; while (_path[0] == '/' &&
_path[1] == '/') _path ++; if (empty_or_root(_root)) _ret = _path
; else { _l = strlen(_root) + 1 + strlen(_path) + 1; _n = __builtin_alloca
(_l); _p = stpcpy(_n, _root); while (_p > _n && _p
[-1] == '/') _p--; if (_path[0] != '/') *(_p++) = '/'; strcpy
(_p, _path); _ret = _n; } _ret; });
730 group_path = prefix_roota(arg_root, "/etc/group")({ const char* _path = ("/etc/group"), *_root = (arg_root), *
_ret; char *_p, *_n; size_t _l; while (_path[0] == '/' &&
_path[1] == '/') _path ++; if (empty_or_root(_root)) _ret = _path
; else { _l = strlen(_root) + 1 + strlen(_path) + 1; _n = __builtin_alloca
(_l); _p = stpcpy(_n, _root); while (_p > _n && _p
[-1] == '/') _p--; if (_path[0] != '/') *(_p++) = '/'; strcpy
(_p, _path); _ret = _n; } _ret; });
731 gshadow_path = prefix_roota(arg_root, "/etc/gshadow")({ const char* _path = ("/etc/gshadow"), *_root = (arg_root),
*_ret; char *_p, *_n; size_t _l; while (_path[0] == '/' &&
_path[1] == '/') _path ++; if (empty_or_root(_root)) _ret = _path
; else { _l = strlen(_root) + 1 + strlen(_path) + 1; _n = __builtin_alloca
(_l); _p = stpcpy(_n, _root); while (_p > _n && _p
[-1] == '/') _p--; if (_path[0] != '/') *(_p++) = '/'; strcpy
(_p, _path); _ret = _n; } _ret; });
732
733 r = write_temporary_group(group_path, &group, &group_tmp);
734 if (r < 0)
735 return r;
736
737 r = write_temporary_gshadow(gshadow_path, &gshadow, &gshadow_tmp);
738 if (r < 0)
739 return r;
740
741 r = write_temporary_passwd(passwd_path, &passwd, &passwd_tmp);
742 if (r < 0)
743 return r;
744
745 r = write_temporary_shadow(shadow_path, &shadow, &shadow_tmp);
746 if (r < 0)
747 return r;
748
749 /* Make a backup of the old files */
750 if (group) {
751 r = make_backup("/etc/group", group_path);
752 if (r < 0)
753 return r;
754 }
755 if (gshadow) {
756 r = make_backup("/etc/gshadow", gshadow_path);
757 if (r < 0)
758 return r;
759 }
760
761 if (passwd) {
762 r = make_backup("/etc/passwd", passwd_path);
763 if (r < 0)
764 return r;
765 }
766 if (shadow) {
767 r = make_backup("/etc/shadow", shadow_path);
768 if (r < 0)
769 return r;
770 }
771
772 /* And make the new files count */
773 if (group) {
774 r = rename_and_apply_smack(group_tmp, group_path);
775 if (r < 0)
776 return r;
777
778 group_tmp = mfree(group_tmp);
779 }
780 if (gshadow) {
781 r = rename_and_apply_smack(gshadow_tmp, gshadow_path);
782 if (r < 0)
783 return r;
784
785 gshadow_tmp = mfree(gshadow_tmp);
786 }
787
788 if (passwd) {
789 r = rename_and_apply_smack(passwd_tmp, passwd_path);
790 if (r < 0)
791 return r;
792
793 passwd_tmp = mfree(passwd_tmp);
794 }
795 if (shadow) {
796 r = rename_and_apply_smack(shadow_tmp, shadow_path);
797 if (r < 0)
798 return r;
799
800 shadow_tmp = mfree(shadow_tmp);
801 }
802
803 return 0;
804}
805
806static int uid_is_ok(uid_t uid, const char *name, bool_Bool check_with_gid) {
807 struct passwd *p;
808 struct group *g;
809 const char *n;
810 Item *i;
811
812 /* Let's see if we already have assigned the UID a second time */
813 if (ordered_hashmap_get(todo_uids, UID_TO_PTR(uid)((void*) (((uintptr_t) (uid))+1))))
814 return 0;
815
816 /* Try to avoid using uids that are already used by a group
817 * that doesn't have the same name as our new user. */
818 if (check_with_gid) {
819 i = ordered_hashmap_get(todo_gids, GID_TO_PTR(uid)((void*) (((uintptr_t) (uid))+1)));
820 if (i && !streq(i->name, name)(strcmp((i->name),(name)) == 0))
821 return 0;
822 }
823
824 /* Let's check the files directly */
825 if (hashmap_contains(database_uid, UID_TO_PTR(uid)((void*) (((uintptr_t) (uid))+1))))
826 return 0;
827
828 if (check_with_gid) {
829 n = hashmap_get(database_gid, GID_TO_PTR(uid)((void*) (((uintptr_t) (uid))+1)));
830 if (n && !streq(n, name)(strcmp((n),(name)) == 0))
831 return 0;
832 }
833
834 /* Let's also check via NSS, to avoid UID clashes over LDAP and such, just in case */
835 if (!arg_root) {
836 errno(*__errno_location ()) = 0;
837 p = getpwuid(uid);
838 if (p)
839 return 0;
840 if (!IN_SET(errno, 0, ENOENT)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, 2})/sizeof(int)]; switch((*__errno_location
())) { case 0: case 2: _found = 1; break; default: break; } _found
; }))
841 return -errno(*__errno_location ());
842
843 if (check_with_gid) {
844 errno(*__errno_location ()) = 0;
845 g = getgrgid((gid_t) uid);
846 if (g) {
847 if (!streq(g->gr_name, name)(strcmp((g->gr_name),(name)) == 0))
848 return 0;
849 } else if (!IN_SET(errno, 0, ENOENT)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, 2})/sizeof(int)]; switch((*__errno_location
())) { case 0: case 2: _found = 1; break; default: break; } _found
; }))
850 return -errno(*__errno_location ());
851 }
852 }
853
854 return 1;
855}
856
857static int root_stat(const char *p, struct stat *st) {
858 const char *fix;
859
860 fix = prefix_roota(arg_root, p)({ const char* _path = (p), *_root = (arg_root), *_ret; char *
_p, *_n; size_t _l; while (_path[0] == '/' && _path[1
] == '/') _path ++; if (empty_or_root(_root)) _ret = _path; else
{ _l = strlen(_root) + 1 + strlen(_path) + 1; _n = __builtin_alloca
(_l); _p = stpcpy(_n, _root); while (_p > _n && _p
[-1] == '/') _p--; if (_path[0] != '/') *(_p++) = '/'; strcpy
(_p, _path); _ret = _n; } _ret; });
861 if (stat(fix, st) < 0)
862 return -errno(*__errno_location ());
863
864 return 0;
865}
866
867static int read_id_from_file(Item *i, uid_t *_uid, gid_t *_gid) {
868 struct stat st;
869 bool_Bool found_uid = false0, found_gid = false0;
870 uid_t uid = 0;
871 gid_t gid = 0;
872
873 assert(i)do { if ((__builtin_expect(!!(!(i)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("i"), "../src/sysusers/sysusers.c", 873,
__PRETTY_FUNCTION__); } while (0);
874
875 /* First, try to get the gid directly */
876 if (_gid && i->gid_path && root_stat(i->gid_path, &st) >= 0) {
877 gid = st.st_gid;
878 found_gid = true1;
879 }
880
881 /* Then, try to get the uid directly */
882 if ((_uid || (_gid && !found_gid))
883 && i->uid_path
884 && root_stat(i->uid_path, &st) >= 0) {
885
886 uid = st.st_uid;
887 found_uid = true1;
888
889 /* If we need the gid, but had no success yet, also derive it from the uid path */
890 if (_gid && !found_gid) {
891 gid = st.st_gid;
892 found_gid = true1;
893 }
894 }
895
896 /* If that didn't work yet, then let's reuse the gid as uid */
897 if (_uid && !found_uid && i->gid_path) {
898
899 if (found_gid) {
900 uid = (uid_t) gid;
901 found_uid = true1;
902 } else if (root_stat(i->gid_path, &st) >= 0) {
903 uid = (uid_t) st.st_gid;
904 found_uid = true1;
905 }
906 }
907
908 if (_uid) {
909 if (!found_uid)
910 return 0;
911
912 *_uid = uid;
913 }
914
915 if (_gid) {
916 if (!found_gid)
917 return 0;
918
919 *_gid = gid;
920 }
921
922 return 1;
923}
924
925static int add_user(Item *i) {
926 void *z;
927 int r;
928
929 assert(i)do { if ((__builtin_expect(!!(!(i)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("i"), "../src/sysusers/sysusers.c", 929,
__PRETTY_FUNCTION__); } while (0);
930
931 /* Check the database directly */
932 z = hashmap_get(database_user, i->name);
933 if (z) {
934 log_debug("User %s already exists.", i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 934, __func__, "User %s already exists."
, i->name) : -abs(_e); });
935 i->uid = PTR_TO_UID(z)((uid_t) (((uintptr_t) (z))-1));
936 i->uid_set = true1;
937 return 0;
938 }
939
940 if (!arg_root) {
941 struct passwd *p;
942
943 /* Also check NSS */
944 errno(*__errno_location ()) = 0;
945 p = getpwnam(i->name);
946 if (p) {
947 log_debug("User %s already exists.", i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 947, __func__, "User %s already exists."
, i->name) : -abs(_e); });
948 i->uid = p->pw_uid;
949 i->uid_set = true1;
950
951 r = free_and_strdup(&i->description, p->pw_gecos);
952 if (r < 0)
953 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 953, __func__);
954
955 return 0;
956 }
957 if (!IN_SET(errno, 0, ENOENT)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, 2})/sizeof(int)]; switch((*__errno_location
())) { case 0: case 2: _found = 1; break; default: break; } _found
; }))
958 return log_error_errno(errno, "Failed to check if user %s already exists: %m", i->name)({ int _level = ((3)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/sysusers/sysusers.c", 958, __func__
, "Failed to check if user %s already exists: %m", i->name
) : -abs(_e); });
959 }
960
961 /* Try to use the suggested numeric uid */
962 if (i->uid_set) {
963 r = uid_is_ok(i->uid, i->name, !i->id_set_strict);
964 if (r < 0)
965 return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 965, __func__, "Failed to verify uid "
"%" "u" ": %m", i->uid) : -abs(_e); });
966 if (r == 0) {
967 log_debug("Suggested user ID " UID_FMT " for %s already used.", i->uid, i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 967, __func__, "Suggested user ID "
"%" "u" " for %s already used.", i->uid, i->name) : -abs
(_e); });
968 i->uid_set = false0;
969 }
970 }
971
972 /* If that didn't work, try to read it from the specified path */
973 if (!i->uid_set) {
974 uid_t c;
975
976 if (read_id_from_file(i, &c, NULL((void*)0)) > 0) {
977
978 if (c <= 0 || !uid_range_contains(uid_range, n_uid_range, c))
979 log_debug("User ID " UID_FMT " of file not suitable for %s.", c, i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 979, __func__, "User ID " "%"
"u" " of file not suitable for %s.", c, i->name) : -abs(_e
); });
980 else {
981 r = uid_is_ok(c, i->name, true1);
982 if (r < 0)
983 return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 983, __func__, "Failed to verify uid "
"%" "u" ": %m", i->uid) : -abs(_e); });
984 else if (r > 0) {
985 i->uid = c;
986 i->uid_set = true1;
987 } else
988 log_debug("User ID " UID_FMT " of file for %s is already used.", c, i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 988, __func__, "User ID " "%"
"u" " of file for %s is already used.", c, i->name) : -abs
(_e); });
989 }
990 }
991 }
992
993 /* Otherwise, try to reuse the group ID */
994 if (!i->uid_set && i->gid_set) {
995 r = uid_is_ok((uid_t) i->gid, i->name, true1);
996 if (r < 0)
997 return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 997, __func__, "Failed to verify uid "
"%" "u" ": %m", i->uid) : -abs(_e); });
998 if (r > 0) {
999 i->uid = (uid_t) i->gid;
1000 i->uid_set = true1;
1001 }
1002 }
1003
1004 /* And if that didn't work either, let's try to find a free one */
1005 if (!i->uid_set) {
1006 for (;;) {
1007 r = uid_range_next_lower(uid_range, n_uid_range, &search_uid);
1008 if (r < 0) {
1009 log_error("No free user ID available for %s.", i->name)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1009, __func__, "No free user ID available for %s."
, i->name) : -abs(_e); });
1010 return r;
1011 }
1012
1013 r = uid_is_ok(search_uid, i->name, true1);
1014 if (r < 0)
1015 return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1015, __func__, "Failed to verify uid "
"%" "u" ": %m", i->uid) : -abs(_e); });
1016 else if (r > 0)
1017 break;
1018 }
1019
1020 i->uid_set = true1;
1021 i->uid = search_uid;
1022 }
1023
1024 r = ordered_hashmap_ensure_allocated(&todo_uids, NULL)internal_ordered_hashmap_ensure_allocated(&todo_uids, ((void
*)0) );
1025 if (r < 0)
1026 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1026, __func__);
1027
1028 r = ordered_hashmap_put(todo_uids, UID_TO_PTR(i->uid)((void*) (((uintptr_t) (i->uid))+1)), i);
1029 if (r < 0)
1030 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1030, __func__);
1031
1032 i->todo_user = true1;
1033 log_info("Creating user %s (%s) with uid " UID_FMT " and gid " GID_FMT ".", i->name, strna(i->description), i->uid, i->gid)({ int _level = (((6))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1033, __func__, "Creating user %s (%s) with uid "
"%" "u" " and gid " "%" "u" ".", i->name, strna(i->description
), i->uid, i->gid) : -abs(_e); });
1034
1035 return 0;
1036}
1037
1038static int gid_is_ok(gid_t gid) {
1039 struct group *g;
1040 struct passwd *p;
1041
1042 if (ordered_hashmap_get(todo_gids, GID_TO_PTR(gid)((void*) (((uintptr_t) (gid))+1))))
1043 return 0;
1044
1045 /* Avoid reusing gids that are already used by a different user */
1046 if (ordered_hashmap_get(todo_uids, UID_TO_PTR(gid)((void*) (((uintptr_t) (gid))+1))))
1047 return 0;
1048
1049 if (hashmap_contains(database_gid, GID_TO_PTR(gid)((void*) (((uintptr_t) (gid))+1))))
1050 return 0;
1051
1052 if (hashmap_contains(database_uid, UID_TO_PTR(gid)((void*) (((uintptr_t) (gid))+1))))
1053 return 0;
1054
1055 if (!arg_root) {
1056 errno(*__errno_location ()) = 0;
1057 g = getgrgid(gid);
1058 if (g)
1059 return 0;
1060 if (!IN_SET(errno, 0, ENOENT)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, 2})/sizeof(int)]; switch((*__errno_location
())) { case 0: case 2: _found = 1; break; default: break; } _found
; }))
1061 return -errno(*__errno_location ());
1062
1063 errno(*__errno_location ()) = 0;
1064 p = getpwuid((uid_t) gid);
1065 if (p)
1066 return 0;
1067 if (!IN_SET(errno, 0, ENOENT)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, 2})/sizeof(int)]; switch((*__errno_location
())) { case 0: case 2: _found = 1; break; default: break; } _found
; }))
1068 return -errno(*__errno_location ());
1069 }
1070
1071 return 1;
1072}
1073
1074static int add_group(Item *i) {
1075 void *z;
1076 int r;
1077
1078 assert(i)do { if ((__builtin_expect(!!(!(i)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("i"), "../src/sysusers/sysusers.c", 1078
, __PRETTY_FUNCTION__); } while (0);
1079
1080 /* Check the database directly */
1081 z = hashmap_get(database_group, i->name);
1082 if (z) {
1083 log_debug("Group %s already exists.", i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1083, __func__, "Group %s already exists."
, i->name) : -abs(_e); });
1084 i->gid = PTR_TO_GID(z)((gid_t) (((uintptr_t) (z))-1));
1085 i->gid_set = true1;
1086 return 0;
1087 }
1088
1089 /* Also check NSS */
1090 if (!arg_root) {
1091 struct group *g;
1092
1093 errno(*__errno_location ()) = 0;
1094 g = getgrnam(i->name);
1095 if (g) {
1096 log_debug("Group %s already exists.", i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1096, __func__, "Group %s already exists."
, i->name) : -abs(_e); });
1097 i->gid = g->gr_gid;
1098 i->gid_set = true1;
1099 return 0;
1100 }
1101 if (!IN_SET(errno, 0, ENOENT)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, 2})/sizeof(int)]; switch((*__errno_location
())) { case 0: case 2: _found = 1; break; default: break; } _found
; }))
1102 return log_error_errno(errno, "Failed to check if group %s already exists: %m", i->name)({ int _level = ((3)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/sysusers/sysusers.c", 1102, __func__
, "Failed to check if group %s already exists: %m", i->name
) : -abs(_e); });
1103 }
1104
1105 /* Try to use the suggested numeric gid */
1106 if (i->gid_set) {
1107 r = gid_is_ok(i->gid);
1108 if (r < 0)
1109 return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1109, __func__, "Failed to verify gid "
"%" "u" ": %m", i->gid) : -abs(_e); });
1110 if (i->id_set_strict) {
1111 /* If we require the gid to already exist we can return here:
1112 * r > 0: means the gid does not exist -> fail
1113 * r == 0: means the gid exists -> nothing more to do.
1114 */
1115 if (r > 0) {
1116 log_error("Failed to create %s: please create GID %d", i->name, i->gid)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1116, __func__, "Failed to create %s: please create GID %d"
, i->name, i->gid) : -abs(_e); });
1117 return -EINVAL22;
1118 }
1119 if (r == 0)
1120 return 0;
1121 }
1122 if (r == 0) {
1123 log_debug("Suggested group ID " GID_FMT " for %s already used.", i->gid, i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1123, __func__, "Suggested group ID "
"%" "u" " for %s already used.", i->gid, i->name) : -abs
(_e); });
1124 i->gid_set = false0;
1125 }
1126 }
1127
1128 /* Try to reuse the numeric uid, if there's one */
1129 if (!i->gid_set && i->uid_set) {
1130 r = gid_is_ok((gid_t) i->uid);
1131 if (r < 0)
1132 return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1132, __func__, "Failed to verify gid "
"%" "u" ": %m", i->gid) : -abs(_e); });
1133 if (r > 0) {
1134 i->gid = (gid_t) i->uid;
1135 i->gid_set = true1;
1136 }
1137 }
1138
1139 /* If that didn't work, try to read it from the specified path */
1140 if (!i->gid_set) {
1141 gid_t c;
1142
1143 if (read_id_from_file(i, NULL((void*)0), &c) > 0) {
1144
1145 if (c <= 0 || !uid_range_contains(uid_range, n_uid_range, c))
1146 log_debug("Group ID " GID_FMT " of file not suitable for %s.", c, i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1146, __func__, "Group ID " "%"
"u" " of file not suitable for %s.", c, i->name) : -abs(_e
); });
1147 else {
1148 r = gid_is_ok(c);
1149 if (r < 0)
1150 return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1150, __func__, "Failed to verify gid "
"%" "u" ": %m", i->gid) : -abs(_e); });
1151 else if (r > 0) {
1152 i->gid = c;
1153 i->gid_set = true1;
1154 } else
1155 log_debug("Group ID " GID_FMT " of file for %s already used.", c, i->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1155, __func__, "Group ID " "%"
"u" " of file for %s already used.", c, i->name) : -abs(_e
); });
1156 }
1157 }
1158 }
1159
1160 /* And if that didn't work either, let's try to find a free one */
1161 if (!i->gid_set) {
1162 for (;;) {
1163 /* We look for new GIDs in the UID pool! */
1164 r = uid_range_next_lower(uid_range, n_uid_range, &search_uid);
1165 if (r < 0) {
1166 log_error("No free group ID available for %s.", i->name)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1166, __func__, "No free group ID available for %s."
, i->name) : -abs(_e); });
1167 return r;
1168 }
1169
1170 r = gid_is_ok(search_uid);
1171 if (r < 0)
1172 return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1172, __func__, "Failed to verify gid "
"%" "u" ": %m", i->gid) : -abs(_e); });
1173 else if (r > 0)
1174 break;
1175 }
1176
1177 i->gid_set = true1;
1178 i->gid = search_uid;
1179 }
1180
1181 r = ordered_hashmap_ensure_allocated(&todo_gids, NULL)internal_ordered_hashmap_ensure_allocated(&todo_gids, ((void
*)0) );
1182 if (r < 0)
1183 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1183, __func__);
1184
1185 r = ordered_hashmap_put(todo_gids, GID_TO_PTR(i->gid)((void*) (((uintptr_t) (i->gid))+1)), i);
1186 if (r < 0)
1187 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1187, __func__);
1188
1189 i->todo_group = true1;
1190 log_info("Creating group %s with gid " GID_FMT ".", i->name, i->gid)({ int _level = (((6))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1190, __func__, "Creating group %s with gid "
"%" "u" ".", i->name, i->gid) : -abs(_e); });
1191
1192 return 0;
1193}
1194
1195static int process_item(Item *i) {
1196 int r;
1197
1198 assert(i)do { if ((__builtin_expect(!!(!(i)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("i"), "../src/sysusers/sysusers.c", 1198
, __PRETTY_FUNCTION__); } while (0);
1199
1200 switch (i->type) {
1201
1202 case ADD_USER: {
1203 Item *j;
1204
1205 j = ordered_hashmap_get(groups, i->name);
1206 if (j && j->todo_group) {
1207 /* When the group with the same name is already in queue,
1208 * use the information about the group and do not create
1209 * duplicated group entry. */
1210 i->gid_set = j->gid_set;
1211 i->gid = j->gid;
1212 i->id_set_strict = true1;
1213 } else {
1214 r = add_group(i);
1215 if (r < 0)
1216 return r;
1217 }
1218
1219 return add_user(i);
1220 }
1221
1222 case ADD_GROUP:
1223 return add_group(i);
1224
1225 default:
1226 assert_not_reached("Unknown item type")do { log_assert_failed_unreachable_realm(LOG_REALM_SYSTEMD, (
"Unknown item type"), "../src/sysusers/sysusers.c", 1226, __PRETTY_FUNCTION__
); } while (0);
1227 }
1228}
1229
1230static void item_free(Item *i) {
1231
1232 if (!i)
1233 return;
1234
1235 free(i->name);
1236 free(i->uid_path);
1237 free(i->gid_path);
1238 free(i->description);
1239 free(i->home);
1240 free(i->shell);
1241 free(i);
1242}
1243
1244DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free)static inline void item_freep(Item* *p) { if (*p) item_free(*
p); };
1245
1246static int add_implicit(void) {
1247 char *g, **l;
1248 Iterator iterator;
1249 int r;
1250
1251 /* Implicitly create additional users and groups, if they were listed in "m" lines */
1252 ORDERED_HASHMAP_FOREACH_KEY(l, g, members, iterator)for ((iterator) = ((Iterator) { .idx = ((2147483647 *2U +1U) -
1), .next_key = ((void*)0) }); ordered_hashmap_iterate((members
), &(iterator), (void**)&(l), (const void**) &(g)
); ) {
1253 char **m;
1254
1255 STRV_FOREACH(m, l)for ((m) = (l); (m) && *(m); (m)++)
1256 if (!ordered_hashmap_get(users, *m)) {
1257 _cleanup_(item_freep)__attribute__((cleanup(item_freep))) Item *j = NULL((void*)0);
1258
1259 r = ordered_hashmap_ensure_allocated(&users, &string_hash_ops)internal_ordered_hashmap_ensure_allocated(&users, &string_hash_ops
);
1260 if (r < 0)
1261 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1261, __func__);
1262
1263 j = new0(Item, 1)((Item*) calloc((1), sizeof(Item)));
1264 if (!j)
1265 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1265, __func__);
1266
1267 j->type = ADD_USER;
1268 j->name = strdup(*m);
1269 if (!j->name)
1270 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1270, __func__);
1271
1272 r = ordered_hashmap_put(users, j->name, j);
1273 if (r < 0)
1274 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1274, __func__);
1275
1276 log_debug("Adding implicit user '%s' due to m line", j->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1276, __func__, "Adding implicit user '%s' due to m line"
, j->name) : -abs(_e); });
1277 j = NULL((void*)0);
1278 }
1279
1280 if (!(ordered_hashmap_get(users, g) ||
1281 ordered_hashmap_get(groups, g))) {
1282 _cleanup_(item_freep)__attribute__((cleanup(item_freep))) Item *j = NULL((void*)0);
1283
1284 r = ordered_hashmap_ensure_allocated(&groups, &string_hash_ops)internal_ordered_hashmap_ensure_allocated(&groups, &string_hash_ops
);
1285 if (r < 0)
1286 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1286, __func__);
1287
1288 j = new0(Item, 1)((Item*) calloc((1), sizeof(Item)));
1289 if (!j)
1290 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1290, __func__);
1291
1292 j->type = ADD_GROUP;
1293 j->name = strdup(g);
1294 if (!j->name)
1295 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1295, __func__);
1296
1297 r = ordered_hashmap_put(groups, j->name, j);
1298 if (r < 0)
1299 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1299, __func__);
1300
1301 log_debug("Adding implicit group '%s' due to m line", j->name)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1301, __func__, "Adding implicit group '%s' due to m line"
, j->name) : -abs(_e); });
1302 j = NULL((void*)0);
1303 }
1304 }
1305
1306 return 0;
1307}
1308
1309static bool_Bool item_equal(Item *a, Item *b) {
1310 assert(a)do { if ((__builtin_expect(!!(!(a)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("a"), "../src/sysusers/sysusers.c", 1310
, __PRETTY_FUNCTION__); } while (0);
1311 assert(b)do { if ((__builtin_expect(!!(!(b)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("b"), "../src/sysusers/sysusers.c", 1311
, __PRETTY_FUNCTION__); } while (0);
1312
1313 if (a->type != b->type)
1314 return false0;
1315
1316 if (!streq_ptr(a->name, b->name))
1317 return false0;
1318
1319 if (!streq_ptr(a->uid_path, b->uid_path))
1320 return false0;
1321
1322 if (!streq_ptr(a->gid_path, b->gid_path))
1323 return false0;
1324
1325 if (!streq_ptr(a->description, b->description))
1326 return false0;
1327
1328 if (a->uid_set != b->uid_set)
1329 return false0;
1330
1331 if (a->uid_set && a->uid != b->uid)
1332 return false0;
1333
1334 if (a->gid_set != b->gid_set)
1335 return false0;
1336
1337 if (a->gid_set && a->gid != b->gid)
1338 return false0;
1339
1340 if (!streq_ptr(a->home, b->home))
1341 return false0;
1342
1343 if (!streq_ptr(a->shell, b->shell))
1344 return false0;
1345
1346 return true1;
1347}
1348
1349static int parse_line(const char *fname, unsigned line, const char *buffer) {
1350
1351 static const Specifier specifier_table[] = {
1352 { 'm', specifier_machine_id, NULL((void*)0) },
1353 { 'b', specifier_boot_id, NULL((void*)0) },
1354 { 'H', specifier_host_name, NULL((void*)0) },
1355 { 'v', specifier_kernel_release, NULL((void*)0) },
1356 { 'T', specifier_tmp_dir, NULL((void*)0) },
1357 { 'V', specifier_var_tmp_dir, NULL((void*)0) },
1358 {}
1359 };
1360
1361 _cleanup_free___attribute__((cleanup(freep))) char *action = NULL((void*)0),
1362 *name = NULL((void*)0), *resolved_name = NULL((void*)0),
1363 *id = NULL((void*)0), *resolved_id = NULL((void*)0),
1364 *description = NULL((void*)0), *resolved_description = NULL((void*)0),
1365 *home = NULL((void*)0), *resolved_home = NULL((void*)0),
1366 *shell, *resolved_shell = NULL((void*)0);
1367 _cleanup_(item_freep)__attribute__((cleanup(item_freep))) Item *i = NULL((void*)0);
1368 Item *existing;
1369 OrderedHashmap *h;
1370 int r;
1371 const char *p;
1372
1373 assert(fname)do { if ((__builtin_expect(!!(!(fname)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("fname"), "../src/sysusers/sysusers.c", 1373
, __PRETTY_FUNCTION__); } while (0);
1374 assert(line >= 1)do { if ((__builtin_expect(!!(!(line >= 1)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("line >= 1"), "../src/sysusers/sysusers.c"
, 1374, __PRETTY_FUNCTION__); } while (0);
1375 assert(buffer)do { if ((__builtin_expect(!!(!(buffer)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("buffer"), "../src/sysusers/sysusers.c",
1375, __PRETTY_FUNCTION__); } while (0);
1376
1377 /* Parse columns */
1378 p = buffer;
1379 r = extract_many_words(&p, NULL((void*)0), EXTRACT_QUOTES,
1380 &action, &name, &id, &description, &home, &shell, NULL((void*)0));
1381 if (r < 0) {
1382 log_error("[%s:%u] Syntax error.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1382, __func__, "[%s:%u] Syntax error."
, fname, line) : -abs(_e); });
1383 return r;
1384 }
1385 if (r < 2) {
1386 log_error("[%s:%u] Missing action and name columns.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1386, __func__, "[%s:%u] Missing action and name columns."
, fname, line) : -abs(_e); });
1387 return -EINVAL22;
1388 }
1389 if (!isempty(p)) {
1390 log_error("[%s:%u] Trailing garbage.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1390, __func__, "[%s:%u] Trailing garbage."
, fname, line) : -abs(_e); });
1391 return -EINVAL22;
1392 }
1393
1394 /* Verify action */
1395 if (strlen(action) != 1) {
1396 log_error("[%s:%u] Unknown modifier '%s'", fname, line, action)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1396, __func__, "[%s:%u] Unknown modifier '%s'"
, fname, line, action) : -abs(_e); });
1397 return -EINVAL22;
1398 }
1399
1400 if (!IN_SET(action[0], ADD_USER, ADD_GROUP, ADD_MEMBER, ADD_RANGE)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){ADD_USER, ADD_GROUP, ADD_MEMBER, ADD_RANGE
})/sizeof(int)]; switch(action[0]) { case ADD_USER: case ADD_GROUP
: case ADD_MEMBER: case ADD_RANGE: _found = 1; break; default
: break; } _found; })) {
1401 log_error("[%s:%u] Unknown command type '%c'.", fname, line, action[0])({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1401, __func__, "[%s:%u] Unknown command type '%c'."
, fname, line, action[0]) : -abs(_e); });
1402 return -EBADMSG74;
1403 }
1404
1405 /* Verify name */
1406 if (isempty(name) || streq(name, "-")(strcmp((name),("-")) == 0))
1407 name = mfree(name);
1408
1409 if (name) {
1410 r = specifier_printf(name, specifier_table, NULL((void*)0), &resolved_name);
1411 if (r < 0) {
1412 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, name)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1412, __func__, "[%s:%u] Failed to replace specifiers: %s"
, fname, line, name) : -abs(_e); });
1413 return r;
1414 }
1415
1416 if (!valid_user_group_name(resolved_name, 0)) {
1417 log_error("[%s:%u] '%s' is not a valid user or group name.", fname, line, resolved_name)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1417, __func__, "[%s:%u] '%s' is not a valid user or group name."
, fname, line, resolved_name) : -abs(_e); });
1418 return -EINVAL22;
1419 }
1420 }
1421
1422 /* Verify id */
1423 if (isempty(id) || streq(id, "-")(strcmp((id),("-")) == 0))
1424 id = mfree(id);
1425
1426 if (id) {
1427 r = specifier_printf(id, specifier_table, NULL((void*)0), &resolved_id);
1428 if (r < 0) {
1429 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, name)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1429, __func__, "[%s:%u] Failed to replace specifiers: %s"
, fname, line, name) : -abs(_e); });
1430 return r;
1431 }
1432 }
1433
1434 /* Verify description */
1435 if (isempty(description) || streq(description, "-")(strcmp((description),("-")) == 0))
1436 description = mfree(description);
1437
1438 if (description) {
1439 r = specifier_printf(description, specifier_table, NULL((void*)0), &resolved_description);
1440 if (r < 0) {
1441 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, description)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1441, __func__, "[%s:%u] Failed to replace specifiers: %s"
, fname, line, description) : -abs(_e); });
1442 return r;
1443 }
1444
1445 if (!valid_gecos(resolved_description)) {
1446 log_error("[%s:%u] '%s' is not a valid GECOS field.", fname, line, resolved_description)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1446, __func__, "[%s:%u] '%s' is not a valid GECOS field."
, fname, line, resolved_description) : -abs(_e); });
1447 return -EINVAL22;
1448 }
1449 }
1450
1451 /* Verify home */
1452 if (isempty(home) || streq(home, "-")(strcmp((home),("-")) == 0))
1453 home = mfree(home);
1454
1455 if (home) {
1456 r = specifier_printf(home, specifier_table, NULL((void*)0), &resolved_home);
1457 if (r < 0) {
1458 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, home)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1458, __func__, "[%s:%u] Failed to replace specifiers: %s"
, fname, line, home) : -abs(_e); });
1459 return r;
1460 }
1461
1462 if (!valid_home(resolved_home)) {
1463 log_error("[%s:%u] '%s' is not a valid home directory field.", fname, line, resolved_home)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1463, __func__, "[%s:%u] '%s' is not a valid home directory field."
, fname, line, resolved_home) : -abs(_e); });
1464 return -EINVAL22;
1465 }
1466 }
1467
1468 /* Verify shell */
1469 if (isempty(shell) || streq(shell, "-")(strcmp((shell),("-")) == 0))
1470 shell = mfree(shell);
1471
1472 if (shell) {
1473 r = specifier_printf(shell, specifier_table, NULL((void*)0), &resolved_shell);
1474 if (r < 0) {
1475 log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, shell)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1475, __func__, "[%s:%u] Failed to replace specifiers: %s"
, fname, line, shell) : -abs(_e); });
1476 return r;
1477 }
1478
1479 if (!valid_shell(resolved_shell)) {
1480 log_error("[%s:%u] '%s' is not a valid login shell field.", fname, line, resolved_shell)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1480, __func__, "[%s:%u] '%s' is not a valid login shell field."
, fname, line, resolved_shell) : -abs(_e); });
1481 return -EINVAL22;
1482 }
1483 }
1484
1485 switch (action[0]) {
1486
1487 case ADD_RANGE:
1488 if (resolved_name) {
1489 log_error("[%s:%u] Lines of type 'r' don't take a name field.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1489, __func__, "[%s:%u] Lines of type 'r' don't take a name field."
, fname, line) : -abs(_e); });
1490 return -EINVAL22;
1491 }
1492
1493 if (!resolved_id) {
1494 log_error("[%s:%u] Lines of type 'r' require a ID range in the third field.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1494, __func__, "[%s:%u] Lines of type 'r' require a ID range in the third field."
, fname, line) : -abs(_e); });
1495 return -EINVAL22;
1496 }
1497
1498 if (description || home || shell) {
1499 log_error("[%s:%u] Lines of type '%c' don't take a %s field.",({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1501, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); })
1500 fname, line, action[0],({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1501, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); })
1501 description ? "GECOS" : home ? "home directory" : "login shell")({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1501, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); });
1502 return -EINVAL22;
1503 }
1504
1505 r = uid_range_add_str(&uid_range, &n_uid_range, resolved_id);
1506 if (r < 0) {
1507 log_error("[%s:%u] Invalid UID range %s.", fname, line, resolved_id)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1507, __func__, "[%s:%u] Invalid UID range %s."
, fname, line, resolved_id) : -abs(_e); });
1508 return -EINVAL22;
1509 }
1510
1511 return 0;
1512
1513 case ADD_MEMBER: {
1514 char **l;
1515
1516 /* Try to extend an existing member or group item */
1517 if (!name) {
1518 log_error("[%s:%u] Lines of type 'm' require a user name in the second field.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1518, __func__, "[%s:%u] Lines of type 'm' require a user name in the second field."
, fname, line) : -abs(_e); });
1519 return -EINVAL22;
1520 }
1521
1522 if (!resolved_id) {
1523 log_error("[%s:%u] Lines of type 'm' require a group name in the third field.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1523, __func__, "[%s:%u] Lines of type 'm' require a group name in the third field."
, fname, line) : -abs(_e); });
1524 return -EINVAL22;
1525 }
1526
1527 if (!valid_user_group_name(resolved_id, 0)) {
1528 log_error("[%s:%u] '%s' is not a valid user or group name.", fname, line, resolved_id)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1528, __func__, "[%s:%u] '%s' is not a valid user or group name."
, fname, line, resolved_id) : -abs(_e); });
1529 return -EINVAL22;
1530 }
1531
1532 if (description || home || shell) {
1533 log_error("[%s:%u] Lines of type '%c' don't take a %s field.",({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1535, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); })
1534 fname, line, action[0],({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1535, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); })
1535 description ? "GECOS" : home ? "home directory" : "login shell")({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1535, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); });
1536 return -EINVAL22;
1537 }
1538
1539 r = ordered_hashmap_ensure_allocated(&members, &string_hash_ops)internal_ordered_hashmap_ensure_allocated(&members, &
string_hash_ops );
1540 if (r < 0)
1541 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1541, __func__);
1542
1543 l = ordered_hashmap_get(members, resolved_id);
1544 if (l) {
1545 /* A list for this group name already exists, let's append to it */
1546 r = strv_push(&l, resolved_name);
1547 if (r < 0)
1548 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1548, __func__);
1549
1550 resolved_name = NULL((void*)0);
1551
1552 assert_se(ordered_hashmap_update(members, resolved_id, l) >= 0)do { if ((__builtin_expect(!!(!(ordered_hashmap_update(members
, resolved_id, l) >= 0)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("ordered_hashmap_update(members, resolved_id, l) >= 0")
, "../src/sysusers/sysusers.c", 1552, __PRETTY_FUNCTION__); }
while (0);
1553 } else {
1554 /* No list for this group name exists yet, create one */
1555
1556 l = new0(char *, 2)((char **) calloc((2), sizeof(char *)));
1557 if (!l)
1558 return -ENOMEM12;
1559
1560 l[0] = resolved_name;
1561 l[1] = NULL((void*)0);
1562
1563 r = ordered_hashmap_put(members, resolved_id, l);
1564 if (r < 0) {
1565 free(l);
1566 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1566, __func__);
1567 }
1568
1569 resolved_id = resolved_name = NULL((void*)0);
1570 }
1571
1572 return 0;
1573 }
1574
1575 case ADD_USER:
1576 if (!name) {
1577 log_error("[%s:%u] Lines of type 'u' require a user name in the second field.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1577, __func__, "[%s:%u] Lines of type 'u' require a user name in the second field."
, fname, line) : -abs(_e); });
1578 return -EINVAL22;
1579 }
1580
1581 r = ordered_hashmap_ensure_allocated(&users, &string_hash_ops)internal_ordered_hashmap_ensure_allocated(&users, &string_hash_ops
);
1582 if (r < 0)
1583 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1583, __func__);
1584
1585 i = new0(Item, 1)((Item*) calloc((1), sizeof(Item)));
1586 if (!i)
1587 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1587, __func__);
1588
1589 if (resolved_id) {
1590 if (path_is_absolute(resolved_id)) {
1591 i->uid_path = TAKE_PTR(resolved_id)({ typeof(resolved_id) _ptr_ = (resolved_id); (resolved_id) =
((void*)0); _ptr_; });
1592 path_simplify(i->uid_path, false0);
1593 } else {
1594 _cleanup_free___attribute__((cleanup(freep))) char *uid = NULL((void*)0), *gid = NULL((void*)0);
1595 if (split_pair(resolved_id, ":", &uid, &gid) == 0) {
1596 r = parse_gid(gid, &i->gid);
1597 if (r < 0)
1598 return log_error_errno(r, "Failed to parse GID: '%s': %m", id)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1598, __func__, "Failed to parse GID: '%s': %m"
, id) : -abs(_e); });
1599 i->gid_set = true1;
1600 i->id_set_strict = true1;
1601 free_and_replace(resolved_id, uid)({ free(resolved_id); (resolved_id) = (uid); (uid) = ((void*)
0); 0; });
1602 }
1603 if (!streq(resolved_id, "-")(strcmp((resolved_id),("-")) == 0)) {
1604 r = parse_uid(resolved_id, &i->uid);
1605 if (r < 0)
1606 return log_error_errno(r, "Failed to parse UID: '%s': %m", id)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1606, __func__, "Failed to parse UID: '%s': %m"
, id) : -abs(_e); });
1607 i->uid_set = true1;
1608 }
1609 }
1610 }
1611
1612 i->description = TAKE_PTR(resolved_description)({ typeof(resolved_description) _ptr_ = (resolved_description
); (resolved_description) = ((void*)0); _ptr_; });
1613 i->home = TAKE_PTR(resolved_home)({ typeof(resolved_home) _ptr_ = (resolved_home); (resolved_home
) = ((void*)0); _ptr_; });
1614 i->shell = TAKE_PTR(resolved_shell)({ typeof(resolved_shell) _ptr_ = (resolved_shell); (resolved_shell
) = ((void*)0); _ptr_; });
1615
1616 h = users;
1617 break;
1618
1619 case ADD_GROUP:
1620 if (!name) {
1621 log_error("[%s:%u] Lines of type 'g' require a user name in the second field.", fname, line)({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1621, __func__, "[%s:%u] Lines of type 'g' require a user name in the second field."
, fname, line) : -abs(_e); });
1622 return -EINVAL22;
1623 }
1624
1625 if (description || home || shell) {
1626 log_error("[%s:%u] Lines of type '%c' don't take a %s field.",({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1628, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); })
1627 fname, line, action[0],({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1628, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); })
1628 description ? "GECOS" : home ? "home directory" : "login shell")({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1628, __func__, "[%s:%u] Lines of type '%c' don't take a %s field."
, fname, line, action[0], description ? "GECOS" : home ? "home directory"
: "login shell") : -abs(_e); });
1629 return -EINVAL22;
1630 }
1631
1632 r = ordered_hashmap_ensure_allocated(&groups, &string_hash_ops)internal_ordered_hashmap_ensure_allocated(&groups, &string_hash_ops
);
1633 if (r < 0)
1634 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1634, __func__);
1635
1636 i = new0(Item, 1)((Item*) calloc((1), sizeof(Item)));
1637 if (!i)
1638 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1638, __func__);
1639
1640 if (resolved_id) {
1641 if (path_is_absolute(resolved_id)) {
1642 i->gid_path = TAKE_PTR(resolved_id)({ typeof(resolved_id) _ptr_ = (resolved_id); (resolved_id) =
((void*)0); _ptr_; });
1643 path_simplify(i->gid_path, false0);
1644 } else {
1645 r = parse_gid(resolved_id, &i->gid);
1646 if (r < 0)
1647 return log_error_errno(r, "Failed to parse GID: '%s': %m", id)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1647, __func__, "Failed to parse GID: '%s': %m"
, id) : -abs(_e); });
1648
1649 i->gid_set = true1;
1650 }
1651 }
1652
1653 h = groups;
1654 break;
1655
1656 default:
1657 return -EBADMSG74;
1658 }
1659
1660 i->type = action[0];
1661 i->name = TAKE_PTR(resolved_name)({ typeof(resolved_name) _ptr_ = (resolved_name); (resolved_name
) = ((void*)0); _ptr_; });
1662
1663 existing = ordered_hashmap_get(h, i->name);
1664 if (existing) {
1665
1666 /* Two identical items are fine */
1667 if (!item_equal(existing, i))
1668 log_warning("Two or more conflicting lines for %s configured, ignoring.", i->name)({ int _level = (((4))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1668, __func__, "Two or more conflicting lines for %s configured, ignoring."
, i->name) : -abs(_e); });
1669
1670 return 0;
1671 }
1672
1673 r = ordered_hashmap_put(h, i->name, i);
1674 if (r < 0)
1675 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1675, __func__);
1676
1677 i = NULL((void*)0);
1678 return 0;
1679}
1680
1681static int read_config_file(const char *fn, bool_Bool ignore_enoent) {
1682 _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *rf = NULL((void*)0);
1683 FILE *f = NULL((void*)0);
1684 char line[LINE_MAX2048];
1685 unsigned v = 0;
1686 int r = 0;
1687
1688 assert(fn)do { if ((__builtin_expect(!!(!(fn)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("fn"), "../src/sysusers/sysusers.c", 1688
, __PRETTY_FUNCTION__); } while (0);
1689
1690 if (streq(fn, "-")(strcmp((fn),("-")) == 0))
1691 f = stdinstdin;
1692 else {
1693 r = search_and_fopen(fn, "re", arg_root, (const char**) CONF_PATHS_STRV("sysusers.d")((char**) ((const char*[]) { "/etc/" "sysusers.d", "/run/" "sysusers.d"
, "/usr/local/lib/" "sysusers.d", "/usr/lib/" "sysusers.d", (
(void*)0) })), &rf);
1694 if (r < 0) {
1695 if (ignore_enoent && r == -ENOENT2)
1696 return 0;
1697
1698 return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn)({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1698, __func__, "Failed to open '%s', ignoring: %m"
, fn) : -abs(_e); });
1699 }
1700
1701 f = rf;
1702 }
1703
1704 FOREACH_LINE(line, f, break)for (;;) if (!fgets(line, sizeof(line), f)) { if (ferror(f)) {
break; } break; } else {
1705 char *l;
1706 int k;
1707
1708 v++;
1709
1710 l = strstrip(line);
1711 if (IN_SET(*l, 0, '#')({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){0, '#'})/sizeof(int)]; switch(*l) { case
0: case '#': _found = 1; break; default: break; } _found; }))
1712 continue;
1713
1714 k = parse_line(fn, v, l);
1715 if (k < 0 && r == 0)
1716 r = k;
1717 }
1718
1719 if (ferror(f)) {
1720 log_error_errno(errno, "Failed to read from file %s: %m", fn)({ int _level = ((3)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/sysusers/sysusers.c", 1720, __func__
, "Failed to read from file %s: %m", fn) : -abs(_e); });
1721 if (r == 0)
1722 r = -EIO5;
1723 }
1724
1725 return r;
1726}
1727
1728static void free_database(Hashmap *by_name, Hashmap *by_id) {
1729 char *name;
1730
1731 for (;;) {
1732 name = hashmap_first(by_id);
1733 if (!name)
1734 break;
1735
1736 hashmap_remove(by_name, name);
1737
1738 hashmap_steal_first_key(by_id);
1739 free(name);
1740 }
1741
1742 while ((name = hashmap_steal_first_key(by_name)))
1743 free(name);
1744
1745 hashmap_free(by_name);
1746 hashmap_free(by_id);
1747}
1748
1749static int cat_config(void) {
1750 _cleanup_strv_free___attribute__((cleanup(strv_freep))) char **files = NULL((void*)0);
1751 int r;
1752
1753 r = conf_files_list_with_replacement(arg_root, CONF_PATHS_STRV("sysusers.d")((char**) ((const char*[]) { "/etc/" "sysusers.d", "/run/" "sysusers.d"
, "/usr/local/lib/" "sysusers.d", "/usr/lib/" "sysusers.d", (
(void*)0) })), arg_replace, &files, NULL((void*)0));
1754 if (r < 0)
1755 return r;
1756
1757 (void) pager_open(arg_no_pager, false0);
1758
1759 return cat_files(NULL((void*)0), files, 0);
1760}
1761
1762static void help(void) {
1763 printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
1764 "Creates system user accounts.\n\n"
1765 " -h --help Show this help\n"
1766 " --version Show package version\n"
1767 " --cat-config Show configuration files\n"
1768 " --root=PATH Operate on an alternate filesystem root\n"
1769 " --replace=PATH Treat arguments as replacement for PATH\n"
1770 " --inline Treat arguments as configuration lines\n"
1771 " --no-pager Do not pipe output into a pager\n"
1772 , program_invocation_short_name);
1773}
1774
1775static int parse_argv(int argc, char *argv[]) {
1776
1777 enum {
1778 ARG_VERSION = 0x100,
1779 ARG_CAT_CONFIG,
1780 ARG_ROOT,
1781 ARG_REPLACE,
1782 ARG_INLINE,
1783 ARG_NO_PAGER,
1784 };
1785
1786 static const struct option options[] = {
1787 { "help", no_argument0, NULL((void*)0), 'h' },
1788 { "version", no_argument0, NULL((void*)0), ARG_VERSION },
1789 { "cat-config", no_argument0, NULL((void*)0), ARG_CAT_CONFIG },
1790 { "root", required_argument1, NULL((void*)0), ARG_ROOT },
1791 { "replace", required_argument1, NULL((void*)0), ARG_REPLACE },
1792 { "inline", no_argument0, NULL((void*)0), ARG_INLINE },
1793 { "no-pager", no_argument0, NULL((void*)0), ARG_NO_PAGER },
1794 {}
1795 };
1796
1797 int c, r;
1798
1799 assert(argc >= 0)do { if ((__builtin_expect(!!(!(argc >= 0)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("argc >= 0"), "../src/sysusers/sysusers.c"
, 1799, __PRETTY_FUNCTION__); } while (0);
1800 assert(argv)do { if ((__builtin_expect(!!(!(argv)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("argv"), "../src/sysusers/sysusers.c", 1800
, __PRETTY_FUNCTION__); } while (0);
1801
1802 while ((c = getopt_long(argc, argv, "h", options, NULL((void*)0))) >= 0)
1803
1804 switch (c) {
1805
1806 case 'h':
1807 help();
1808 return 0;
1809
1810 case ARG_VERSION:
1811 return version();
1812
1813 case ARG_CAT_CONFIG:
1814 arg_cat_config = true1;
1815 break;
1816
1817 case ARG_ROOT:
1818 r = parse_path_argument_and_warn(optarg, true1, &arg_root);
1819 if (r < 0)
1820 return r;
1821 break;
1822
1823 case ARG_REPLACE:
1824 if (!path_is_absolute(optarg) ||
1825 !endswith(optarg, ".conf")) {
1826 log_error("The argument to --replace= must an absolute path to a config file")({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1826, __func__, "The argument to --replace= must an absolute path to a config file"
) : -abs(_e); });
1827 return -EINVAL22;
1828 }
1829
1830 arg_replace = optarg;
1831 break;
1832
1833 case ARG_INLINE:
1834 arg_inline = true1;
1835 break;
1836
1837 case ARG_NO_PAGER:
1838 arg_no_pager = true1;
1839 break;
1840
1841 case '?':
1842 return -EINVAL22;
1843
1844 default:
1845 assert_not_reached("Unhandled option")do { log_assert_failed_unreachable_realm(LOG_REALM_SYSTEMD, (
"Unhandled option"), "../src/sysusers/sysusers.c", 1845, __PRETTY_FUNCTION__
); } while (0);
1846 }
1847
1848 if (arg_replace && arg_cat_config) {
1849 log_error("Option --replace= is not supported with --cat-config")({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1849, __func__, "Option --replace= is not supported with --cat-config"
) : -abs(_e); });
1850 return -EINVAL22;
1851 }
1852
1853 if (arg_replace && optind >= argc) {
1854 log_error("When --replace= is given, some configuration items must be specified")({ int _level = (((3))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1854, __func__, "When --replace= is given, some configuration items must be specified"
) : -abs(_e); });
1855 return -EINVAL22;
1856 }
1857
1858 return 1;
1859}
1860
1861static int parse_arguments(char **args) {
1862 char **arg;
1863 unsigned pos = 1;
1864 int r;
1865
1866 STRV_FOREACH(arg, args)for ((arg) = (args); (arg) && *(arg); (arg)++) {
1867 if (arg_inline)
1868 /* Use (argument):n, where n==1 for the first positional arg */
1869 r = parse_line("(argument)", pos, *arg);
1870 else
1871 r = read_config_file(*arg, false0);
1872 if (r < 0)
1873 return r;
1874
1875 pos++;
1876 }
1877
1878 return 0;
1879}
1880
1881static int read_config_files(char **args) {
1882 _cleanup_strv_free___attribute__((cleanup(strv_freep))) char **files = NULL((void*)0);
1883 _cleanup_free___attribute__((cleanup(freep))) char *p = NULL((void*)0);
1884 char **f;
1885 int r;
1886
1887 r = conf_files_list_with_replacement(arg_root, CONF_PATHS_STRV("sysusers.d")((char**) ((const char*[]) { "/etc/" "sysusers.d", "/run/" "sysusers.d"
, "/usr/local/lib/" "sysusers.d", "/usr/lib/" "sysusers.d", (
(void*)0) })), arg_replace, &files, &p);
1888 if (r < 0)
1889 return r;
1890
1891 STRV_FOREACH(f, files)for ((f) = (files); (f) && *(f); (f)++)
1892 if (p && path_equal(*f, p)) {
1893 log_debug("Parsing arguments at position \"%s\"…", *f)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1893, __func__, "Parsing arguments at position \"%s\"…"
, *f) : -abs(_e); });
1894
1895 r = parse_arguments(args);
1896 if (r < 0)
1897 return r;
1898 } else {
1899 log_debug("Reading config file \"%s\"…", *f)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1899, __func__, "Reading config file \"%s\"…"
, *f) : -abs(_e); });
1900
1901 /* Just warn, ignore result otherwise */
1902 (void) read_config_file(*f, true1);
1903 }
1904
1905 return 0;
1906}
1907
1908int main(int argc, char *argv[]) {
1909 _cleanup_close___attribute__((cleanup(closep))) int lock = -1;
1910 Iterator iterator;
1911 int r;
1912 Item *i;
1913 char *n;
1914
1915 r = parse_argv(argc, argv);
1916 if (r
0.1
'r' is > 0
 <= 0)
1
Taking false branch
→
1917 goto finish;
1918
1919 log_set_target(LOG_TARGET_AUTO);
1920 log_parse_environment()log_parse_environment_realm(LOG_REALM_SYSTEMD);
1921 log_open();
1922
1923 if (arg_cat_config
1.1
'arg_cat_config' is false
) {
2
←
Taking false branch
→
1924 r = cat_config();
1925 goto finish;
1926 }
1927
1928 umask(0022);
1929
1930 r = mac_selinux_init();
1931 if (r < 0) {
3
←
Assuming 'r' is >= 0
→
4
←
Taking false branch
→
1932 log_error_errno(r, "SELinux setup failed: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1932, __func__, "SELinux setup failed: %m"
) : -abs(_e); });
1933 goto finish;
1934 }
1935
1936 /* If command line arguments are specified along with --replace, read all
1937 * configuration files and insert the positional arguments at the specified
1938 * place. Otherwise, if command line arguments are specified, execute just
1939 * them, and finally, without --replace= or any positional arguments, just
1940 * read configuration and execute it.
1941 */
1942 if (arg_replace
4.1
'arg_replace' is null
 || optind >= argc)
5
←
Assuming 'optind' is < 'argc'
→
6
←
Taking false branch
→
1943 r = read_config_files(argv + optind);
1944 else
1945 r = parse_arguments(argv + optind);
1946 if (r
6.1
'r' is >= 0
 < 0)
7
←
Taking false branch
→
1947 goto finish;
1948
1949 /* Let's tell nss-systemd not to synthesize the "root" and "nobody" entries for it, so that our detection
1950 * whether the names or UID/GID area already used otherwise doesn't get confused. After all, even though
1951 * nss-systemd synthesizes these users/groups, they should still appear in /etc/passwd and /etc/group, as the
1952 * synthesizing logic is merely supposed to be fallback for cases where we run with a completely unpopulated
1953 * /etc. */
1954 if (setenv("SYSTEMD_NSS_BYPASS_SYNTHETIC", "1", 1) < 0) {
8
←
Assuming the condition is false
→
9
←
Taking false branch
→
1955 r = log_error_errno(errno, "Failed to set SYSTEMD_NSS_BYPASS_SYNTHETIC environment variable: %m")({ int _level = ((3)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/sysusers/sysusers.c", 1955, __func__
, "Failed to set SYSTEMD_NSS_BYPASS_SYNTHETIC environment variable: %m"
) : -abs(_e); });
1956 goto finish;
1957 }
1958
1959 if (!uid_range
9.1
'uid_range' is null
) {
10
←
Taking true branch
→
1960 /* Default to default range of 1..SYSTEM_UID_MAX */
1961 r = uid_range_add(&uid_range, &n_uid_range, 1, SYSTEM_UID_MAX999);
1962 if (r < 0) {
11
←
Assuming 'r' is >= 0
→
12
←
Taking false branch
→
1963 log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/sysusers/sysusers.c"
, 1963, __func__);
1964 goto finish;
1965 }
1966 }
1967
1968 r = add_implicit();
1969 if (r
12.1
'r' is >= 0
 < 0)
13
←
Taking false branch
→
1970 goto finish;
1971
1972 lock = take_etc_passwd_lock(arg_root);
1973 if (lock < 0) {
14
←
Assuming 'lock' is >= 0
→
15
←
Taking false branch
→
1974 log_error_errno(lock, "Failed to take /etc/passwd lock: %m")({ int _level = ((3)), _e = ((lock)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1974, __func__, "Failed to take /etc/passwd lock: %m"
) : -abs(_e); });
1975 goto finish;
1976 }
1977
1978 r = load_user_database();
1979 if (r < 0) {
16
←
Assuming 'r' is >= 0
→
17
←
Taking false branch
→
1980 log_error_errno(r, "Failed to load user database: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1980, __func__, "Failed to load user database: %m"
) : -abs(_e); });
1981 goto finish;
1982 }
1983
1984 r = load_group_database();
1985 if (r < 0) {
18
←
Assuming 'r' is >= 0
→
19
←
Taking false branch
→
1986 log_error_errno(r, "Failed to read group database: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1986, __func__, "Failed to read group database: %m"
) : -abs(_e); });
1987 goto finish;
1988 }
1989
1990 ORDERED_HASHMAP_FOREACH(i, groups, iterator)for ((iterator) = ((Iterator) { .idx = ((2147483647 *2U +1U) -
1), .next_key = ((void*)0) }); ordered_hashmap_iterate((groups
), &(iterator), (void**)&(i), ((void*)0)); )
20
←
Loop condition is false. Execution continues on line 1993
→
1991 (void) process_item(i);
1992
1993 ORDERED_HASHMAP_FOREACH(i, users, iterator)for ((iterator) = ((Iterator) { .idx = ((2147483647 *2U +1U) -
1), .next_key = ((void*)0) }); ordered_hashmap_iterate((users
), &(iterator), (void**)&(i), ((void*)0)); )
21
←
Loop condition is false. Execution continues on line 1996
→
1994 (void) process_item(i);
1995
1996 r = write_files();
22
←
Calling 'write_files'
→
1997 if (r < 0)
1998 log_error_errno(r, "Failed to write files: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/sysusers/sysusers.c", 1998, __func__, "Failed to write files: %m"
) : -abs(_e); });
1999
2000finish:
2001 pager_close();
2002
2003 ordered_hashmap_free_with_destructor(groups, item_free)({ ({ void *_item; while ((_item = ordered_hashmap_steal_first
(groups))) item_free(_item); }); ordered_hashmap_free(groups)
; });
2004 ordered_hashmap_free_with_destructor(users, item_free)({ ({ void *_item; while ((_item = ordered_hashmap_steal_first
(users))) item_free(_item); }); ordered_hashmap_free(users); }
);
2005
2006 while ((n = ordered_hashmap_first_key(members))) {
2007 strv_free(ordered_hashmap_steal_first(members));
2008 free(n);
2009 }
2010 ordered_hashmap_free(members);
2011
2012 ordered_hashmap_free(todo_uids);
2013 ordered_hashmap_free(todo_gids);
2014
2015 free_database(database_user, database_uid);
2016 free_database(database_group, database_gid);
2017
2018 free(uid_range);
2019
2020 free(arg_root);
2021
2022 return r < 0 ? EXIT_FAILURE1 : EXIT_SUCCESS0;
2023}