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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
c2f1db8f | 3 | #pragma once |
60918275 | 4 | |
a7334b09 LP |
5 | /*** |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
11 | under the terms of the GNU Lesser General Public License as published by |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
13 | (at your option) any later version. |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 18 | Lesser General Public License for more details. |
a7334b09 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
31885cd5 | 24 | #include <alloca.h> |
370c860f | 25 | #include <fcntl.h> |
60918275 LP |
26 | #include <inttypes.h> |
27 | #include <time.h> | |
ec2002f8 | 28 | #include <stdarg.h> |
60918275 | 29 | #include <stdbool.h> |
5cb5a6ff | 30 | #include <stdlib.h> |
80876c20 | 31 | #include <stdio.h> |
9a34ec5f | 32 | #include <signal.h> |
82c121a4 | 33 | #include <sched.h> |
8f75a603 | 34 | #include <limits.h> |
25ea79fe | 35 | #include <sys/types.h> |
2c35d880 | 36 | #include <sys/socket.h> |
00dc5d76 | 37 | #include <sys/stat.h> |
3b63d2d3 | 38 | #include <dirent.h> |
7d5e9c0f | 39 | #include <stddef.h> |
79d860fe | 40 | #include <unistd.h> |
d6dd604b | 41 | #include <locale.h> |
5862d652 | 42 | #include <mntent.h> |
0254e944 | 43 | #include <sys/inotify.h> |
c6878637 | 44 | #include <sys/statfs.h> |
60918275 | 45 | |
a838e6a1 | 46 | #include "macro.h" |
dced1557 | 47 | #include "missing.h" |
9a98c7a1 | 48 | #include "time-util.h" |
6482f626 | 49 | #include "formats-util.h" |
871d7de4 | 50 | |
44d8db9e | 51 | /* What is interpreted as whitespace? */ |
4a72ff34 | 52 | #define WHITESPACE " \t\n\r" |
e3e0314b ZJS |
53 | #define NEWLINE "\n\r" |
54 | #define QUOTES "\"\'" | |
55 | #define COMMENTS "#;" | |
56 | #define GLOB_CHARS "*?[" | |
44d8db9e | 57 | |
0ce5a806 MM |
58 | /* What characters are special in the shell? */ |
59 | /* must be escaped outside and inside double-quotes */ | |
60 | #define SHELL_NEED_ESCAPE "\"\\`$" | |
61 | /* can be escaped or double-quoted */ | |
62 | #define SHELL_NEED_QUOTES SHELL_NEED_ESCAPE GLOB_CHARS "'()<>|&;" | |
63 | ||
a7bc2c2a | 64 | #define FORMAT_BYTES_MAX 8 |
8b6c7120 | 65 | |
2e857429 | 66 | size_t page_size(void) _pure_; |
37f85e66 | 67 | #define PAGE_ALIGN(l) ALIGN_TO((l), page_size()) |
68 | ||
60918275 | 69 | #define streq(a,b) (strcmp((a),(b)) == 0) |
3846aeeb | 70 | #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) |
b43d1d01 TA |
71 | #define strcaseeq(a,b) (strcasecmp((a),(b)) == 0) |
72 | #define strncaseeq(a, b, n) (strncasecmp((a), (b), (n)) == 0) | |
60918275 | 73 | |
44a6b1b6 | 74 | bool streq_ptr(const char *a, const char *b) _pure_; |
e05797fb | 75 | |
4b8772bf | 76 | #define new(t, n) ((t*) malloc_multiply(sizeof(t), (n))) |
60918275 LP |
77 | |
78 | #define new0(t, n) ((t*) calloc((n), sizeof(t))) | |
79 | ||
0f0dbc46 LP |
80 | #define newa(t, n) ((t*) alloca(sizeof(t)*(n))) |
81 | ||
7629889c LP |
82 | #define newa0(t, n) ((t*) alloca0(sizeof(t)*(n))) |
83 | ||
4b8772bf | 84 | #define newdup(t, p, n) ((t*) memdup_multiply(p, sizeof(t), (n))) |
888c7102 | 85 | |
60918275 LP |
86 | #define malloc0(n) (calloc((n), 1)) |
87 | ||
88 | static inline const char* yes_no(bool b) { | |
89 | return b ? "yes" : "no"; | |
90 | } | |
91 | ||
5232c42e LS |
92 | static inline const char* true_false(bool b) { |
93 | return b ? "true" : "false"; | |
94 | } | |
95 | ||
769d324c LP |
96 | static inline const char* one_zero(bool b) { |
97 | return b ? "1" : "0"; | |
98 | } | |
99 | ||
60918275 LP |
100 | static inline const char* strempty(const char *s) { |
101 | return s ? s : ""; | |
102 | } | |
103 | ||
104 | static inline const char* strnull(const char *s) { | |
105 | return s ? s : "(null)"; | |
106 | } | |
107 | ||
04fd6fe4 LP |
108 | static inline const char *strna(const char *s) { |
109 | return s ? s : "n/a"; | |
110 | } | |
111 | ||
9beb3f4d LP |
112 | static inline bool isempty(const char *p) { |
113 | return !p || !p[0]; | |
114 | } | |
115 | ||
11adc1ae LP |
116 | static inline char *startswith(const char *s, const char *prefix) { |
117 | size_t l; | |
118 | ||
119 | l = strlen(prefix); | |
120 | if (strncmp(s, prefix, l) == 0) | |
121 | return (char*) s + l; | |
122 | ||
df89481a KS |
123 | return NULL; |
124 | } | |
125 | ||
11adc1ae LP |
126 | static inline char *startswith_no_case(const char *s, const char *prefix) { |
127 | size_t l; | |
128 | ||
129 | l = strlen(prefix); | |
130 | if (strncasecmp(s, prefix, l) == 0) | |
131 | return (char*) s + l; | |
132 | ||
df89481a KS |
133 | return NULL; |
134 | } | |
135 | ||
44a6b1b6 | 136 | char *endswith(const char *s, const char *postfix) _pure_; |
d3226d77 | 137 | char *endswith_no_case(const char *s, const char *postfix) _pure_; |
60918275 | 138 | |
5cb36f41 | 139 | char *first_word(const char *s, const char *word) _pure_; |
79d6d816 | 140 | |
42f4e3c4 | 141 | int close_nointr(int fd); |
03e334a1 | 142 | int safe_close(int fd); |
3d94f76c | 143 | void safe_close_pair(int p[]); |
03e334a1 | 144 | |
5b6319dc | 145 | void close_many(const int fds[], unsigned n_fd); |
60918275 | 146 | |
5556b5fe LP |
147 | int parse_size(const char *t, off_t base, off_t *size); |
148 | ||
44a6b1b6 | 149 | int parse_boolean(const char *v) _pure_; |
3ba686c1 | 150 | int parse_pid(const char *s, pid_t* ret_pid); |
034a2a52 LP |
151 | int parse_uid(const char *s, uid_t* ret_uid); |
152 | #define parse_gid(s, ret_uid) parse_uid(s, ret_uid) | |
85261803 LP |
153 | |
154 | int safe_atou(const char *s, unsigned *ret_u); | |
155 | int safe_atoi(const char *s, int *ret_i); | |
156 | ||
8f75a603 LP |
157 | int safe_atollu(const char *s, unsigned long long *ret_u); |
158 | int safe_atolli(const char *s, long long int *ret_i); | |
159 | ||
f7900e25 TA |
160 | int safe_atod(const char *s, double *ret_d); |
161 | ||
b914e211 LP |
162 | int safe_atou8(const char *s, uint8_t *ret); |
163 | ||
8507eb20 | 164 | #if LONG_MAX == INT_MAX |
8f75a603 LP |
165 | static inline int safe_atolu(const char *s, unsigned long *ret_u) { |
166 | assert_cc(sizeof(unsigned long) == sizeof(unsigned)); | |
167 | return safe_atou(s, (unsigned*) ret_u); | |
168 | } | |
169 | static inline int safe_atoli(const char *s, long int *ret_u) { | |
170 | assert_cc(sizeof(long int) == sizeof(int)); | |
171 | return safe_atoi(s, (int*) ret_u); | |
172 | } | |
173 | #else | |
174 | static inline int safe_atolu(const char *s, unsigned long *ret_u) { | |
175 | assert_cc(sizeof(unsigned long) == sizeof(unsigned long long)); | |
176 | return safe_atollu(s, (unsigned long long*) ret_u); | |
177 | } | |
178 | static inline int safe_atoli(const char *s, long int *ret_u) { | |
179 | assert_cc(sizeof(long int) == sizeof(long long int)); | |
180 | return safe_atolli(s, (long long int*) ret_u); | |
181 | } | |
182 | #endif | |
183 | ||
a838e6a1 LP |
184 | static inline int safe_atou32(const char *s, uint32_t *ret_u) { |
185 | assert_cc(sizeof(uint32_t) == sizeof(unsigned)); | |
186 | return safe_atou(s, (unsigned*) ret_u); | |
187 | } | |
188 | ||
8f75a603 | 189 | static inline int safe_atoi32(const char *s, int32_t *ret_i) { |
a838e6a1 | 190 | assert_cc(sizeof(int32_t) == sizeof(int)); |
8f75a603 | 191 | return safe_atoi(s, (int*) ret_i); |
a838e6a1 LP |
192 | } |
193 | ||
8f75a603 LP |
194 | static inline int safe_atou64(const char *s, uint64_t *ret_u) { |
195 | assert_cc(sizeof(uint64_t) == sizeof(unsigned long long)); | |
196 | return safe_atollu(s, (unsigned long long*) ret_u); | |
197 | } | |
034c6ed7 | 198 | |
8f75a603 LP |
199 | static inline int safe_atoi64(const char *s, int64_t *ret_i) { |
200 | assert_cc(sizeof(int64_t) == sizeof(long long int)); | |
201 | return safe_atolli(s, (long long int*) ret_i); | |
202 | } | |
034c6ed7 | 203 | |
781fa938 LP |
204 | int safe_atou16(const char *s, uint16_t *ret); |
205 | int safe_atoi16(const char *s, int16_t *ret); | |
206 | ||
a2a5291b | 207 | const char* split(const char **state, size_t *l, const char *separator, bool quoted); |
a41e8209 | 208 | |
034c6ed7 | 209 | #define FOREACH_WORD(word, length, s, state) \ |
bf85c24d | 210 | _FOREACH_WORD(word, length, s, WHITESPACE, false, state) |
65d2ebdc LP |
211 | |
212 | #define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \ | |
bf85c24d | 213 | _FOREACH_WORD(word, length, s, separator, false, state) |
a41e8209 | 214 | |
034c6ed7 | 215 | #define FOREACH_WORD_QUOTED(word, length, s, state) \ |
bf85c24d SP |
216 | _FOREACH_WORD(word, length, s, WHITESPACE, true, state) |
217 | ||
bf85c24d | 218 | #define _FOREACH_WORD(word, length, s, separator, quoted, state) \ |
a2a5291b | 219 | for ((state) = (s), (word) = split(&(state), &(length), (separator), (quoted)); (word); (word) = split(&(state), &(length), (separator), (quoted))) |
034c6ed7 | 220 | |
44d8db9e | 221 | char *strappend(const char *s, const char *suffix); |
fab56fc5 LP |
222 | char *strnappend(const char *s, const char *suffix, size_t length); |
223 | ||
849958d1 | 224 | int readlinkat_malloc(int fd, const char *p, char **ret); |
87f0e418 | 225 | int readlink_malloc(const char *p, char **r); |
9a67bcf2 | 226 | int readlink_value(const char *p, char **ret); |
2c7108c4 | 227 | int readlink_and_make_absolute(const char *p, char **r); |
83096483 | 228 | int readlink_and_canonicalize(const char *p, char **r); |
87f0e418 | 229 | |
2a987ee8 | 230 | int reset_all_signal_handlers(void); |
1dedb74a | 231 | int reset_signal_mask(void); |
2a987ee8 | 232 | |
4a72ff34 | 233 | char *strstrip(char *s); |
ee9b5e01 | 234 | char *delete_chars(char *s, const char *bad); |
7072ced8 | 235 | char *truncate_nl(char *s); |
ee9b5e01 | 236 | |
4a72ff34 LP |
237 | char *file_in_same_dir(const char *path, const char *filename); |
238 | ||
c32dd69b LP |
239 | int rmdir_parents(const char *path, const char *stop); |
240 | ||
bcb92f48 CR |
241 | char hexchar(int x) _const_; |
242 | int unhexchar(char c) _const_; | |
243 | char octchar(int x) _const_; | |
244 | int unoctchar(char c) _const_; | |
245 | char decchar(int x) _const_; | |
246 | int undecchar(char c) _const_; | |
4fe88d28 LP |
247 | |
248 | char *cescape(const char *s); | |
0b452006 | 249 | size_t cescape_char(char c, char *buf); |
527b7a42 LP |
250 | |
251 | typedef enum UnescapeFlags { | |
252 | UNESCAPE_RELAX = 1, | |
253 | } UnescapeFlags; | |
254 | ||
255 | int cunescape(const char *s, UnescapeFlags flags, char **ret); | |
256 | int cunescape_length(const char *s, size_t length, UnescapeFlags flags, char **ret); | |
257 | int cunescape_length_with_prefix(const char *s, size_t length, const char *prefix, UnescapeFlags flags, char **ret); | |
6febfd0d LP |
258 | |
259 | char *xescape(const char *s, const char *bad); | |
260 | ||
4fe88d28 LP |
261 | char *ascii_strlower(char *path); |
262 | ||
44a6b1b6 ZJS |
263 | bool dirent_is_file(const struct dirent *de) _pure_; |
264 | bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) _pure_; | |
87d2c1ff | 265 | |
a34bf9db | 266 | bool hidden_file(const char *filename) _pure_; |
c85dc17b | 267 | |
44a6b1b6 | 268 | bool chars_intersect(const char *a, const char *b) _pure_; |
db12775d | 269 | |
f8b69d1d | 270 | /* For basic lookup tables with strictly enumerated entries */ |
b9a5f858 | 271 | #define _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \ |
4e240ab0 | 272 | scope const char *name##_to_string(type i) { \ |
1dccbe19 LP |
273 | if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \ |
274 | return NULL; \ | |
275 | return name##_table[i]; \ | |
b9a5f858 LP |
276 | } |
277 | ||
9cad100e BB |
278 | ssize_t string_table_lookup(const char * const *table, size_t len, const char *key); |
279 | ||
280 | #define _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \ | |
281 | scope inline type name##_from_string(const char *s) { \ | |
282 | return (type)string_table_lookup(name##_table, ELEMENTSOF(name##_table), s); \ | |
b9a5f858 LP |
283 | } |
284 | ||
285 | #define _DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \ | |
286 | _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \ | |
287 | _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \ | |
1dccbe19 LP |
288 | struct __useless_struct_to_allow_trailing_semicolon__ |
289 | ||
b9a5f858 LP |
290 | #define DEFINE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,) |
291 | #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,static) | |
292 | #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,static) | |
293 | #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,static) | |
1dccbe19 | 294 | |
f8b69d1d MS |
295 | /* For string conversions where numbers are also acceptable */ |
296 | #define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \ | |
297 | int name##_to_string_alloc(type i, char **str) { \ | |
298 | char *s; \ | |
299 | int r; \ | |
300 | if (i < 0 || i > max) \ | |
301 | return -ERANGE; \ | |
302 | if (i < (type) ELEMENTSOF(name##_table)) { \ | |
303 | s = strdup(name##_table[i]); \ | |
304 | if (!s) \ | |
305 | return log_oom(); \ | |
306 | } else { \ | |
8facc349 | 307 | r = asprintf(&s, "%i", i); \ |
f8b69d1d MS |
308 | if (r < 0) \ |
309 | return log_oom(); \ | |
310 | } \ | |
311 | *str = s; \ | |
312 | return 0; \ | |
313 | } \ | |
314 | type name##_from_string(const char *s) { \ | |
315 | type i; \ | |
316 | unsigned u = 0; \ | |
317 | assert(s); \ | |
318 | for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \ | |
319 | if (name##_table[i] && \ | |
320 | streq(name##_table[i], s)) \ | |
321 | return i; \ | |
8511dd18 | 322 | if (safe_atou(s, &u) >= 0 && u <= max) \ |
f8b69d1d MS |
323 | return (type) u; \ |
324 | return (type) -1; \ | |
325 | } \ | |
326 | struct __useless_struct_to_allow_trailing_semicolon__ | |
327 | ||
3a0ecb08 LP |
328 | int fd_nonblock(int fd, bool nonblock); |
329 | int fd_cloexec(int fd, bool cloexec); | |
330 | ||
a0d40ac5 LP |
331 | int close_all_fds(const int except[], unsigned n_except); |
332 | ||
42856c10 LP |
333 | bool fstype_is_network(const char *fstype); |
334 | ||
80876c20 LP |
335 | int flush_fd(int fd); |
336 | ||
9a34ec5f LP |
337 | int ignore_signals(int sig, ...); |
338 | int default_signals(int sig, ...); | |
339 | int sigaction_many(const struct sigaction *sa, ...); | |
a337c6fc | 340 | |
5a3ab509 | 341 | int fopen_temporary(const char *path, FILE **_f, char **_temp_path); |
8d567588 | 342 | |
eb22ac37 | 343 | ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll); |
a6dcc7e5 | 344 | int loop_read_exact(int fd, void *buf, size_t nbytes, bool do_poll); |
553acb7b | 345 | int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll); |
8d567588 | 346 | |
8407a5d0 LP |
347 | bool is_device_path(const char *path); |
348 | ||
01f78473 | 349 | int dir_is_empty(const char *path); |
844ec79b | 350 | char* dirname_malloc(const char *path); |
01f78473 | 351 | |
7d793605 | 352 | void sigset_add_many(sigset_t *ss, ...); |
856a5a7d | 353 | int sigprocmask_many(int how, ...); |
7d793605 | 354 | |
f1566e63 | 355 | char* lookup_uid(uid_t uid); |
ef2f1067 | 356 | char* getlogname_malloc(void); |
7c5f152a | 357 | char* getusername_malloc(void); |
fc116c6a | 358 | |
8c6db833 | 359 | int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid); |
f4b47811 | 360 | int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid); |
8c6db833 | 361 | |
c6878637 LP |
362 | bool is_temporary_fs(const struct statfs *s) _pure_; |
363 | int fd_is_temporary_fs(int fd); | |
ef2f1067 | 364 | |
1325aa42 LP |
365 | int pipe_eof(int fd); |
366 | ||
82c121a4 LP |
367 | cpu_set_t* cpu_set_malloc(unsigned *ncpus); |
368 | ||
5ffa8c81 ZJS |
369 | #define xsprintf(buf, fmt, ...) assert_se((size_t) snprintf(buf, ELEMENTSOF(buf), fmt, __VA_ARGS__) < ELEMENTSOF(buf)) |
370 | ||
9d9951a4 HH |
371 | int files_same(const char *filea, const char *fileb); |
372 | ||
b4f10a5e LP |
373 | int running_in_chroot(void); |
374 | ||
72f59706 | 375 | char *ellipsize(const char *s, size_t length, unsigned percent); |
f405e86d | 376 | /* bytes columns */ |
72f59706 | 377 | char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent); |
8fe914ec | 378 | |
c38dfac9 | 379 | int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode); |
f6144808 LP |
380 | int touch(const char *path); |
381 | ||
919ce0b7 | 382 | noreturn void freeze(void); |
3c14d26c | 383 | |
44a6b1b6 | 384 | bool null_or_empty(struct stat *st) _pure_; |
83096483 | 385 | int null_or_empty_path(const char *fn); |
ed88bcfb | 386 | int null_or_empty_fd(int fd); |
00dc5d76 | 387 | |
a247755d | 388 | DIR *xopendirat(int dirfd, const char *name, int flags); |
3b63d2d3 | 389 | |
e23a0ce8 LP |
390 | char *fstab_node_to_udev_node(const char *p); |
391 | ||
e801700e | 392 | void execute_directories(const char* const* directories, usec_t timeout, char *argv[]); |
83cc030f | 393 | |
05feefe0 LP |
394 | bool nulstr_contains(const char*nulstr, const char *needle); |
395 | ||
a88c8750 TG |
396 | bool plymouth_running(void); |
397 | ||
7f0d207d LP |
398 | bool machine_name_is_valid(const char *s) _pure_; |
399 | ||
9beb3f4d LP |
400 | char* strshorten(char *s, size_t l); |
401 | ||
875e1014 | 402 | int symlink_idempotent(const char *from, const char *to); |
6ea832a2 | 403 | |
424a19f8 | 404 | int symlink_atomic(const char *from, const char *to); |
1554afae LP |
405 | int mknod_atomic(const char *path, mode_t mode, dev_t dev); |
406 | int mkfifo_atomic(const char *path, mode_t mode); | |
34ca941c LP |
407 | |
408 | int fchmod_umask(int fd, mode_t mode); | |
409 | ||
44a6b1b6 | 410 | bool display_is_local(const char *display) _pure_; |
4d6d6518 LP |
411 | int socket_from_display(const char *display, char **path); |
412 | ||
d05c5031 | 413 | int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell); |
4b67834e | 414 | int get_group_creds(const char **groupname, gid_t *gid); |
1cccf435 | 415 | |
4468addc | 416 | int in_gid(gid_t gid); |
43673799 LP |
417 | int in_group(const char *name); |
418 | ||
59164be4 | 419 | char* uid_to_name(uid_t uid); |
4468addc | 420 | char* gid_to_name(gid_t gid); |
59164be4 | 421 | |
8092a428 | 422 | int glob_exists(const char *path); |
8d98da3f | 423 | int glob_extend(char ***strv, const char *path); |
8092a428 | 424 | |
83096483 LP |
425 | int dirent_ensure_type(DIR *d, struct dirent *de); |
426 | ||
034a2a52 | 427 | int get_files_in_directory(const char *path, char ***list); |
83096483 | 428 | |
b7def684 | 429 | char *strjoin(const char *x, ...) _sentinel_; |
911a4828 | 430 | |
b636465b LP |
431 | bool is_main_thread(void); |
432 | ||
01f83c1c JT |
433 | static inline bool _pure_ in_charset(const char *s, const char* charset) { |
434 | assert(s); | |
435 | assert(charset); | |
436 | return s[strspn(s, charset)] == '\0'; | |
437 | } | |
ab1f0633 | 438 | |
94959f0f LP |
439 | int block_get_whole_disk(dev_t d, dev_t *ret); |
440 | ||
e23a0ce8 | 441 | #define NULSTR_FOREACH(i, l) \ |
c4e2ceae LP |
442 | for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1) |
443 | ||
5c0532d1 LP |
444 | #define NULSTR_FOREACH_PAIR(i, j, l) \ |
445 | for ((i) = (l), (j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i)) | |
446 | ||
f8b69d1d | 447 | int ioprio_class_to_string_alloc(int i, char **s); |
1dccbe19 LP |
448 | int ioprio_class_from_string(const char *s); |
449 | ||
44a6b1b6 ZJS |
450 | const char *sigchld_code_to_string(int i) _const_; |
451 | int sigchld_code_from_string(const char *s) _pure_; | |
1dccbe19 | 452 | |
f8b69d1d | 453 | int log_facility_unshifted_to_string_alloc(int i, char **s); |
7d76f312 | 454 | int log_facility_unshifted_from_string(const char *s); |
1dccbe19 | 455 | |
f8b69d1d | 456 | int log_level_to_string_alloc(int i, char **s); |
1dccbe19 LP |
457 | int log_level_from_string(const char *s); |
458 | ||
f8b69d1d | 459 | int sched_policy_to_string_alloc(int i, char **s); |
1dccbe19 LP |
460 | int sched_policy_from_string(const char *s); |
461 | ||
44a6b1b6 ZJS |
462 | const char *rlimit_to_string(int i) _const_; |
463 | int rlimit_from_string(const char *s) _pure_; | |
1dccbe19 | 464 | |
f8b69d1d | 465 | int ip_tos_to_string_alloc(int i, char **s); |
4fd5948e LP |
466 | int ip_tos_from_string(const char *s); |
467 | ||
44a6b1b6 ZJS |
468 | const char *signal_to_string(int i) _const_; |
469 | int signal_from_string(const char *s) _pure_; | |
2e22afe9 | 470 | |
8a0867d6 LP |
471 | int signal_from_string_try_harder(const char *s); |
472 | ||
9a0e6896 LP |
473 | extern int saved_argc; |
474 | extern char **saved_argv; | |
475 | ||
65457142 FC |
476 | bool kexec_loaded(void); |
477 | ||
44a6b1b6 | 478 | int prot_from_flags(int flags) _const_; |
87d2c1ff | 479 | |
babfc091 LP |
480 | char *format_bytes(char *buf, size_t l, off_t t); |
481 | ||
8f2d43a0 | 482 | int fd_wait_for_event(int fd, int event, usec_t timeout); |
df50185b | 483 | |
750ef272 | 484 | void* memdup(const void *p, size_t l) _alloc_(2); |
55d7bfc1 | 485 | |
bb99a35a LP |
486 | int fd_inc_sndbuf(int fd, size_t n); |
487 | int fd_inc_rcvbuf(int fd, size_t n); | |
6bb92a16 | 488 | |
9bdc770c | 489 | int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...); |
6bb92a16 | 490 | |
68faf98c LP |
491 | int setrlimit_closest(int resource, const struct rlimit *rlim); |
492 | ||
a2e03378 LP |
493 | bool http_url_is_valid(const char *url) _pure_; |
494 | bool documentation_url_is_valid(const char *url) _pure_; | |
49dbfa7b | 495 | |
3d7415f4 LP |
496 | bool http_etag_is_valid(const char *etag); |
497 | ||
9be346c9 | 498 | bool in_initrd(void); |
069cfc85 | 499 | |
7c5f152a | 500 | int get_home_dir(char **ret); |
2cfbd749 | 501 | int get_shell(char **_ret); |
2fbe635a | 502 | |
a740c14c MS |
503 | static inline void freep(void *p) { |
504 | free(*(void**) p); | |
505 | } | |
506 | ||
dfb33a97 | 507 | static inline void closep(int *fd) { |
03e334a1 | 508 | safe_close(*fd); |
dfb33a97 LP |
509 | } |
510 | ||
dfb33a97 LP |
511 | static inline void umaskp(mode_t *u) { |
512 | umask(*u); | |
763c7aa2 ZJS |
513 | } |
514 | ||
3d94f76c LP |
515 | static inline void close_pairp(int (*p)[2]) { |
516 | safe_close_pair(*p); | |
04d39279 LP |
517 | } |
518 | ||
14bf2c9d LP |
519 | DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, fclose); |
520 | DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose); | |
521 | DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir); | |
522 | DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent); | |
5862d652 | 523 | |
dfb33a97 | 524 | #define _cleanup_free_ _cleanup_(freep) |
dfb33a97 | 525 | #define _cleanup_close_ _cleanup_(closep) |
dfb33a97 LP |
526 | #define _cleanup_umask_ _cleanup_(umaskp) |
527 | #define _cleanup_globfree_ _cleanup_(globfree) | |
1ca208fb ZJS |
528 | #define _cleanup_fclose_ _cleanup_(fclosep) |
529 | #define _cleanup_pclose_ _cleanup_(pclosep) | |
530 | #define _cleanup_closedir_ _cleanup_(closedirp) | |
5862d652 | 531 | #define _cleanup_endmntent_ _cleanup_(endmntentp) |
3d94f76c | 532 | #define _cleanup_close_pair_ _cleanup_(close_pairp) |
c84a9488 | 533 | |
750ef272 | 534 | _malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) { |
368504f4 | 535 | if (_unlikely_(b != 0 && a > ((size_t) -1) / b)) |
4b8772bf LP |
536 | return NULL; |
537 | ||
538 | return malloc(a * b); | |
539 | } | |
540 | ||
9489490a DH |
541 | _alloc_(2, 3) static inline void *realloc_multiply(void *p, size_t a, size_t b) { |
542 | if (_unlikely_(b != 0 && a > ((size_t) -1) / b)) | |
543 | return NULL; | |
544 | ||
545 | return realloc(p, a * b); | |
546 | } | |
547 | ||
750ef272 | 548 | _alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_t b) { |
368504f4 | 549 | if (_unlikely_(b != 0 && a > ((size_t) -1) / b)) |
4b8772bf LP |
550 | return NULL; |
551 | ||
552 | return memdup(p, a * b); | |
553 | } | |
0b507b17 | 554 | |
ae6c3cc0 | 555 | bool filename_is_valid(const char *p) _pure_; |
44a6b1b6 ZJS |
556 | bool path_is_safe(const char *p) _pure_; |
557 | bool string_is_safe(const char *p) _pure_; | |
6294aa76 | 558 | bool string_has_cc(const char *p, const char *ok) _pure_; |
cfbc22ab | 559 | |
e3e0314b ZJS |
560 | /** |
561 | * Check if a string contains any glob patterns. | |
562 | */ | |
563 | _pure_ static inline bool string_is_glob(const char *p) { | |
564 | return !!strpbrk(p, GLOB_CHARS); | |
565 | } | |
566 | ||
a9e12476 KS |
567 | void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size, |
568 | int (*compar) (const void *, const void *, void *), | |
569 | void *arg); | |
09017585 | 570 | |
20f56fdd DR |
571 | #define _(String) gettext (String) |
572 | void init_gettext(void); | |
09017585 | 573 | bool is_locale_utf8(void); |
c339d977 MS |
574 | |
575 | typedef enum DrawSpecialChar { | |
6b01f1d3 | 576 | DRAW_TREE_VERTICAL, |
45a5ff0d MS |
577 | DRAW_TREE_BRANCH, |
578 | DRAW_TREE_RIGHT, | |
55c0b89c | 579 | DRAW_TREE_SPACE, |
c339d977 | 580 | DRAW_TRIANGULAR_BULLET, |
3deadb91 | 581 | DRAW_BLACK_CIRCLE, |
6b01f1d3 | 582 | DRAW_ARROW, |
13f8b8cb | 583 | DRAW_DASH, |
c339d977 MS |
584 | _DRAW_SPECIAL_CHAR_MAX |
585 | } DrawSpecialChar; | |
6b01f1d3 | 586 | |
c339d977 | 587 | const char *draw_special_char(DrawSpecialChar ch); |
409bc9c3 LP |
588 | |
589 | char *strreplace(const char *text, const char *old_string, const char *new_string); | |
e8bc0ea2 LP |
590 | |
591 | char *strip_tab_ansi(char **p, size_t *l); | |
240dbaa4 LP |
592 | |
593 | int on_ac_power(void); | |
f74e605f | 594 | |
4cf7ea55 MM |
595 | int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f); |
596 | int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f); | |
fabe5c0e | 597 | |
9db11a99 LP |
598 | #define FOREACH_LINE(line, f, on_error) \ |
599 | for (;;) \ | |
f74e605f LP |
600 | if (!fgets(line, sizeof(line), f)) { \ |
601 | if (ferror(f)) { \ | |
602 | on_error; \ | |
603 | } \ | |
604 | break; \ | |
605 | } else | |
9db11a99 LP |
606 | |
607 | #define FOREACH_DIRENT(de, d, on_error) \ | |
608 | for (errno = 0, de = readdir(d);; errno = 0, de = readdir(d)) \ | |
609 | if (!de) { \ | |
8333c77e | 610 | if (errno > 0) { \ |
9db11a99 LP |
611 | on_error; \ |
612 | } \ | |
613 | break; \ | |
a34bf9db | 614 | } else if (hidden_file((de)->d_name)) \ |
9db11a99 LP |
615 | continue; \ |
616 | else | |
cd61c3bf LP |
617 | |
618 | #define FOREACH_DIRENT_ALL(de, d, on_error) \ | |
619 | for (errno = 0, de = readdir(d);; errno = 0, de = readdir(d)) \ | |
620 | if (!de) { \ | |
621 | if (errno > 0) { \ | |
622 | on_error; \ | |
623 | } \ | |
624 | break; \ | |
625 | } else | |
6282c859 MS |
626 | |
627 | static inline void *mempset(void *s, int c, size_t n) { | |
628 | memset(s, c, n); | |
dfb33a97 | 629 | return (uint8_t*)s + n; |
6282c859 | 630 | } |
66e35261 LP |
631 | |
632 | char *hexmem(const void *p, size_t l); | |
2181a7f5 LP |
633 | void *unhexmem(const char *p, size_t l); |
634 | ||
a432cb69 | 635 | char *strextend(char **x, ...) _sentinel_; |
9a17484d | 636 | char *strrep(const char *s, unsigned n); |
392d5b37 | 637 | |
ca2d3784 ZJS |
638 | void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size); |
639 | void* greedy_realloc0(void **p, size_t *allocated, size_t need, size_t size); | |
640 | #define GREEDY_REALLOC(array, allocated, need) \ | |
641 | greedy_realloc((void**) &(array), &(allocated), (need), sizeof((array)[0])) | |
642 | ||
643 | #define GREEDY_REALLOC0(array, allocated, need) \ | |
644 | greedy_realloc0((void**) &(array), &(allocated), (need), sizeof((array)[0])) | |
a1937e67 | 645 | |
5c0d398d | 646 | static inline void _reset_errno_(int *saved_errno) { |
5c0aa72a LP |
647 | errno = *saved_errno; |
648 | } | |
649 | ||
2a371001 | 650 | #define PROTECT_ERRNO _cleanup_(_reset_errno_) __attribute__((unused)) int _saved_errno_ = errno |
5c0d398d | 651 | |
44dd2c6e DH |
652 | static inline int negative_errno(void) { |
653 | /* This helper should be used to shut up gcc if you know 'errno' is | |
654 | * negative. Instead of "return -errno;", use "return negative_errno();" | |
655 | * It will suppress bogus gcc warnings in case it assumes 'errno' might | |
656 | * be 0 and thus the caller's error-handling might not be triggered. */ | |
657 | assert_return(errno > 0, -EINVAL); | |
658 | return -errno; | |
659 | } | |
660 | ||
d6dd604b | 661 | struct _umask_struct_ { |
5c0d398d LP |
662 | mode_t mask; |
663 | bool quit; | |
664 | }; | |
665 | ||
d6dd604b | 666 | static inline void _reset_umask_(struct _umask_struct_ *s) { |
5c0d398d LP |
667 | umask(s->mask); |
668 | }; | |
669 | ||
670 | #define RUN_WITH_UMASK(mask) \ | |
d6dd604b | 671 | for (_cleanup_(_reset_umask_) struct _umask_struct_ _saved_umask_ = { umask(mask), false }; \ |
5c0d398d LP |
672 | !_saved_umask_.quit ; \ |
673 | _saved_umask_.quit = true) | |
144e51ec CR |
674 | |
675 | static inline unsigned u64log2(uint64_t n) { | |
ec417ccc | 676 | #if __SIZEOF_LONG_LONG__ == 8 |
693eb9a2 | 677 | return (n > 1) ? (unsigned) __builtin_clzll(n) ^ 63U : 0; |
ec417ccc LP |
678 | #else |
679 | #error "Wut?" | |
680 | #endif | |
681 | } | |
682 | ||
683 | static inline unsigned u32ctz(uint32_t n) { | |
684 | #if __SIZEOF_INT__ == 4 | |
685 | return __builtin_ctz(n); | |
686 | #else | |
687 | #error "Wut?" | |
688 | #endif | |
144e51ec | 689 | } |
79d860fe | 690 | |
7d328b54 | 691 | static inline unsigned log2i(int x) { |
8fe90522 ZJS |
692 | assert(x > 0); |
693 | ||
694 | return __SIZEOF_INT__ * 8 - __builtin_clz(x) - 1; | |
695 | } | |
696 | ||
b5de6d98 MS |
697 | static inline unsigned log2u(unsigned x) { |
698 | assert(x > 0); | |
699 | ||
700 | return sizeof(unsigned) * 8 - __builtin_clz(x) - 1; | |
701 | } | |
702 | ||
703 | static inline unsigned log2u_round_up(unsigned x) { | |
704 | assert(x > 0); | |
705 | ||
706 | if (x == 1) | |
707 | return 0; | |
708 | ||
709 | return log2u(x - 1) + 1; | |
710 | } | |
711 | ||
79d860fe MP |
712 | static inline bool logind_running(void) { |
713 | return access("/run/systemd/seats/", F_OK) >= 0; | |
714 | } | |
4b73a0c0 | 715 | |
82da66fb LP |
716 | #define DECIMAL_STR_WIDTH(x) \ |
717 | ({ \ | |
718 | typeof(x) _x_ = (x); \ | |
719 | unsigned ans = 1; \ | |
720 | while (_x_ /= 10) \ | |
721 | ans++; \ | |
722 | ans; \ | |
723 | }) | |
75add28a | 724 | |
4b73a0c0 | 725 | int unlink_noerrno(const char *path); |
ed5c5dbd | 726 | |
82da66fb LP |
727 | #define alloca0(n) \ |
728 | ({ \ | |
729 | char *_new_; \ | |
730 | size_t _len_ = n; \ | |
731 | _new_ = alloca(_len_); \ | |
732 | (void *) memset(_new_, 0, _len_); \ | |
ed5c5dbd | 733 | }) |
95d78c7e | 734 | |
257224b0 | 735 | /* It's not clear what alignment glibc/gcc alloca() guarantee, hence provide a guaranteed safe version */ |
95d78c7e DH |
736 | #define alloca_align(size, align) \ |
737 | ({ \ | |
738 | void *_ptr_; \ | |
739 | size_t _mask_ = (align) - 1; \ | |
740 | _ptr_ = alloca((size) + _mask_); \ | |
741 | (void*)(((uintptr_t)_ptr_ + _mask_) & ~_mask_); \ | |
742 | }) | |
743 | ||
744 | #define alloca0_align(size, align) \ | |
745 | ({ \ | |
746 | void *_new_; \ | |
747 | size_t _size_ = (size); \ | |
748 | _new_ = alloca_align(_size_, (align)); \ | |
749 | (void*)memset(_new_, 0, _size_); \ | |
750 | }) | |
66060897 | 751 | |
63c372cb LP |
752 | #define strjoina(a, ...) \ |
753 | ({ \ | |
754 | const char *_appendees_[] = { a, __VA_ARGS__ }; \ | |
755 | char *_d_, *_p_; \ | |
756 | int _len_ = 0; \ | |
757 | unsigned _i_; \ | |
758 | for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \ | |
759 | _len_ += strlen(_appendees_[_i_]); \ | |
760 | _p_ = _d_ = alloca(_len_ + 1); \ | |
761 | for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \ | |
762 | _p_ = stpcpy(_p_, _appendees_[_i_]); \ | |
763 | *_p_ = 0; \ | |
764 | _d_; \ | |
f39d4a08 HH |
765 | }) |
766 | ||
44a6b1b6 | 767 | bool id128_is_valid(const char *s) _pure_; |
d4ac85c6 LP |
768 | |
769 | int split_pair(const char *s, const char *sep, char **l, char **r); | |
7ff7394d | 770 | |
74df0fca | 771 | int shall_restore_state(void); |
295edddf | 772 | |
7ff7394d ZJS |
773 | /** |
774 | * Normal qsort requires base to be nonnull. Here were require | |
775 | * that only if nmemb > 0. | |
776 | */ | |
aeb24f30 LP |
777 | static inline void qsort_safe(void *base, size_t nmemb, size_t size, comparison_fn_t compar) { |
778 | if (nmemb <= 0) | |
779 | return; | |
780 | ||
781 | assert(base); | |
782 | qsort(base, nmemb, size, compar); | |
7ff7394d | 783 | } |
74df0fca | 784 | |
6e6c21c8 LP |
785 | /* Normal memmem() requires haystack to be nonnull, which is annoying for zero-length buffers */ |
786 | static inline void *memmem_safe(const void *haystack, size_t haystacklen, const void *needle, size_t needlelen) { | |
787 | ||
788 | if (needlelen <= 0) | |
789 | return (void*) haystack; | |
790 | ||
791 | if (haystacklen < needlelen) | |
792 | return NULL; | |
793 | ||
794 | assert(haystack); | |
795 | assert(needle); | |
796 | ||
797 | return memmem(haystack, haystacklen, needle, needlelen); | |
798 | } | |
799 | ||
74df0fca | 800 | int proc_cmdline(char **ret); |
059cb385 | 801 | int parse_proc_cmdline(int (*parse_word)(const char *key, const char *value)); |
1a299299 | 802 | int get_proc_cmdline_key(const char *parameter, char **value); |
bc9fd78c LP |
803 | |
804 | int container_get_leader(const char *machine, pid_t *pid); | |
805 | ||
878cd7e9 LP |
806 | int namespace_open(pid_t pid, int *pidns_fd, int *mntns_fd, int *netns_fd, int *root_fd); |
807 | int namespace_enter(int pidns_fd, int mntns_fd, int netns_fd, int root_fd); | |
bf108e55 | 808 | |
eff05270 LP |
809 | int getpeercred(int fd, struct ucred *ucred); |
810 | int getpeersec(int fd, char **ret); | |
8e33886e | 811 | |
65b3903f ZJS |
812 | int writev_safe(int fd, const struct iovec *w, int j); |
813 | ||
814 | int mkostemp_safe(char *pattern, int flags); | |
8e33886e | 815 | int open_tmpfile(const char *path, int flags); |
fdb9161c LP |
816 | |
817 | int fd_warn_permissions(const char *path, int fd); | |
6afc95b7 | 818 | |
ac45f971 LP |
819 | unsigned long personality_from_string(const char *p); |
820 | const char *personality_to_string(unsigned long); | |
1c231f56 LP |
821 | |
822 | uint64_t physical_memory(void); | |
6db615c1 | 823 | |
29bfbcd6 | 824 | void hexdump(FILE *f, const void *p, size_t s); |
370c860f DR |
825 | |
826 | union file_handle_union { | |
c5220a94 MO |
827 | struct file_handle handle; |
828 | char padding[sizeof(struct file_handle) + MAX_HANDLE_SZ]; | |
370c860f | 829 | }; |
2695c5c4 | 830 | #define FILE_HANDLE_INIT { .handle.handle_bytes = MAX_HANDLE_SZ } |
c5220a94 MO |
831 | |
832 | int update_reboot_param_file(const char *param); | |
6d313367 LP |
833 | |
834 | int umount_recursive(const char *target, int flags); | |
d6797c92 LP |
835 | |
836 | int bind_remount_recursive(const char *prefix, bool ro); | |
1b992147 LP |
837 | |
838 | int fflush_and_check(FILE *f); | |
2e78fa79 | 839 | |
ae6c3cc0 LP |
840 | int tempfn_xxxxxx(const char *p, char **ret); |
841 | int tempfn_random(const char *p, char **ret); | |
c4e34a61 | 842 | int tempfn_random_child(const char *p, char **ret); |
fecc80c1 | 843 | |
45035609 | 844 | int take_password_lock(const char *root); |
5261ba90 | 845 | |
7629889c | 846 | int is_symlink(const char *path); |
be57e297 | 847 | int is_dir(const char *path, bool follow); |
ce5b3ad4 | 848 | int is_device_node(const char *path); |
7629889c | 849 | |
527b7a42 | 850 | typedef enum UnquoteFlags { |
4034a06d LP |
851 | UNQUOTE_RELAX = 1, |
852 | UNQUOTE_CUNESCAPE = 2, | |
853 | } UnquoteFlags; | |
854 | ||
855 | int unquote_first_word(const char **p, char **ret, UnquoteFlags flags); | |
856 | int unquote_many_words(const char **p, UnquoteFlags flags, ...) _sentinel_; | |
2928b0a8 LP |
857 | |
858 | int free_and_strdup(char **p, const char *s); | |
605f81a8 | 859 | |
f7c1ad4f LP |
860 | #define INOTIFY_EVENT_MAX (sizeof(struct inotify_event) + NAME_MAX + 1) |
861 | ||
862 | #define FOREACH_INOTIFY_EVENT(e, buffer, sz) \ | |
0254e944 SL |
863 | for ((e) = &buffer.ev; \ |
864 | (uint8_t*) (e) < (uint8_t*) (buffer.raw) + (sz); \ | |
f7c1ad4f | 865 | (e) = (struct inotify_event*) ((uint8_t*) (e) + sizeof(struct inotify_event) + (e)->len)) |
72648326 | 866 | |
0254e944 SL |
867 | union inotify_event_buffer { |
868 | struct inotify_event ev; | |
869 | uint8_t raw[INOTIFY_EVENT_MAX]; | |
870 | }; | |
871 | ||
72648326 | 872 | #define laccess(path, mode) faccessat(AT_FDCWD, (path), (mode), AT_SYMLINK_NOFOLLOW) |
ee451d76 LP |
873 | |
874 | int ptsname_malloc(int fd, char **ret); | |
5f8cc96a LP |
875 | |
876 | int openpt_in_namespace(pid_t pid, int flags); | |
4a4d89b6 | 877 | |
10f9c755 LP |
878 | ssize_t fgetxattrat_fake(int dirfd, const char *filename, const char *attribute, void *value, size_t size, int flags); |
879 | ||
4a4d89b6 LP |
880 | int fd_setcrtime(int fd, usec_t usec); |
881 | int fd_getcrtime(int fd, usec_t *usec); | |
882 | int path_getcrtime(const char *p, usec_t *usec); | |
10f9c755 | 883 | int fd_getcrtime_at(int dirfd, const char *name, usec_t *usec, int flags); |
a354329f LP |
884 | |
885 | int same_fd(int a, int b); | |
11689d2a | 886 | |
1ed8f8c1 LP |
887 | int chattr_fd(int fd, unsigned value, unsigned mask); |
888 | int chattr_path(const char *p, unsigned value, unsigned mask); | |
de45d726 | 889 | |
01b72568 LP |
890 | int read_attr_fd(int fd, unsigned *ret); |
891 | int read_attr_path(const char *p, unsigned *ret); | |
892 | ||
de45d726 | 893 | #define RLIMIT_MAKE_CONST(lim) ((struct rlimit) { lim, lim }) |
ff6a7460 LP |
894 | |
895 | ssize_t sparse_write(int fd, const void *p, size_t sz, size_t run_length); | |
3576d631 LP |
896 | |
897 | void sigkill_wait(pid_t *pid); | |
898 | #define _cleanup_sigkill_wait_ _cleanup_(sigkill_wait) | |
3d7415f4 LP |
899 | |
900 | int syslog_parse_priority(const char **p, int *priority, bool with_facility); | |
1c8da044 LP |
901 | |
902 | void cmsg_close_all(struct msghdr *mh); | |
f85ef957 AC |
903 | |
904 | int rename_noreplace(int olddirfd, const char *oldpath, int newdirfd, const char *newpath); | |
019c7fba LP |
905 | |
906 | char *shell_maybe_quote(const char *s); | |
2ff7b0a5 LP |
907 | |
908 | int parse_mode(const char *s, mode_t *ret); | |
6458ec20 LP |
909 | |
910 | int mount_move_root(const char *path); | |
b4da6d6b LP |
911 | |
912 | int reset_uid_gid(void); |