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Commit | Line | Data |
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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 | ||
60918275 LP |
24 | #include <inttypes.h> |
25 | #include <time.h> | |
26 | #include <sys/time.h> | |
ec2002f8 | 27 | #include <stdarg.h> |
60918275 | 28 | #include <stdbool.h> |
5cb5a6ff | 29 | #include <stdlib.h> |
80876c20 | 30 | #include <stdio.h> |
9a34ec5f | 31 | #include <signal.h> |
82c121a4 | 32 | #include <sched.h> |
8f75a603 | 33 | #include <limits.h> |
25ea79fe | 34 | #include <sys/types.h> |
00dc5d76 | 35 | #include <sys/stat.h> |
3b63d2d3 | 36 | #include <dirent.h> |
68faf98c | 37 | #include <sys/resource.h> |
7d5e9c0f | 38 | #include <stddef.h> |
79d860fe | 39 | #include <unistd.h> |
60918275 | 40 | |
c84a9488 | 41 | #include <systemd/sd-journal.h> |
a838e6a1 | 42 | #include "macro.h" |
9a98c7a1 | 43 | #include "time-util.h" |
871d7de4 | 44 | |
7d5e9c0f LP |
45 | union dirent_storage { |
46 | struct dirent de; | |
47 | uint8_t storage[offsetof(struct dirent, d_name) + | |
48 | ((NAME_MAX + 1 + sizeof(long)) & ~(sizeof(long) - 1))]; | |
49 | }; | |
50 | ||
44d8db9e | 51 | /* What is interpreted as whitespace? */ |
4a72ff34 | 52 | #define WHITESPACE " \t\n\r" |
7072ced8 | 53 | #define NEWLINE "\n\r" |
97c4a07d | 54 | #define QUOTES "\"\'" |
d3b6d0c2 | 55 | #define COMMENTS "#;" |
44d8db9e | 56 | |
a7bc2c2a | 57 | #define FORMAT_BYTES_MAX 8 |
8b6c7120 | 58 | |
c1072ea0 | 59 | #define ANSI_HIGHLIGHT_ON "\x1B[1;39m" |
03b717a3 | 60 | #define ANSI_RED_ON "\x1B[31m" |
281605bf | 61 | #define ANSI_HIGHLIGHT_RED_ON "\x1B[1;31m" |
076a24ad | 62 | #define ANSI_GREEN_ON "\x1B[32m" |
2ee68f72 | 63 | #define ANSI_HIGHLIGHT_GREEN_ON "\x1B[1;32m" |
5f23d5b1 | 64 | #define ANSI_HIGHLIGHT_YELLOW_ON "\x1B[1;33m" |
61cbdc4b | 65 | #define ANSI_HIGHLIGHT_OFF "\x1B[0m" |
984a2be4 | 66 | #define ANSI_ERASE_TO_END_OF_LINE "\x1B[K" |
61cbdc4b | 67 | |
37f85e66 | 68 | size_t page_size(void); |
69 | #define PAGE_ALIGN(l) ALIGN_TO((l), page_size()) | |
70 | ||
60918275 | 71 | #define streq(a,b) (strcmp((a),(b)) == 0) |
3846aeeb | 72 | #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) |
b43d1d01 TA |
73 | #define strcaseeq(a,b) (strcasecmp((a),(b)) == 0) |
74 | #define strncaseeq(a, b, n) (strncasecmp((a), (b), (n)) == 0) | |
60918275 | 75 | |
e05797fb LP |
76 | bool streq_ptr(const char *a, const char *b); |
77 | ||
4b8772bf | 78 | #define new(t, n) ((t*) malloc_multiply(sizeof(t), (n))) |
60918275 LP |
79 | |
80 | #define new0(t, n) ((t*) calloc((n), sizeof(t))) | |
81 | ||
0f0dbc46 LP |
82 | #define newa(t, n) ((t*) alloca(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 | ||
92 | static inline const char* strempty(const char *s) { | |
93 | return s ? s : ""; | |
94 | } | |
95 | ||
96 | static inline const char* strnull(const char *s) { | |
97 | return s ? s : "(null)"; | |
98 | } | |
99 | ||
04fd6fe4 LP |
100 | static inline const char *strna(const char *s) { |
101 | return s ? s : "n/a"; | |
102 | } | |
103 | ||
9beb3f4d LP |
104 | static inline bool isempty(const char *p) { |
105 | return !p || !p[0]; | |
106 | } | |
107 | ||
8c7c140f | 108 | char *endswith(const char *s, const char *postfix); |
e8988fc2 LP |
109 | char *startswith(const char *s, const char *prefix); |
110 | char *startswith_no_case(const char *s, const char *prefix); | |
60918275 | 111 | |
79d6d816 LP |
112 | bool first_word(const char *s, const char *word); |
113 | ||
42f4e3c4 | 114 | int close_nointr(int fd); |
85f136b5 | 115 | void close_nointr_nofail(int fd); |
5b6319dc | 116 | void close_many(const int fds[], unsigned n_fd); |
60918275 | 117 | |
85261803 | 118 | int parse_boolean(const char *v); |
ab1f0633 | 119 | int parse_bytes(const char *t, off_t *bytes); |
3ba686c1 | 120 | int parse_pid(const char *s, pid_t* ret_pid); |
034a2a52 LP |
121 | int parse_uid(const char *s, uid_t* ret_uid); |
122 | #define parse_gid(s, ret_uid) parse_uid(s, ret_uid) | |
85261803 LP |
123 | |
124 | int safe_atou(const char *s, unsigned *ret_u); | |
125 | int safe_atoi(const char *s, int *ret_i); | |
126 | ||
8f75a603 LP |
127 | int safe_atollu(const char *s, unsigned long long *ret_u); |
128 | int safe_atolli(const char *s, long long int *ret_i); | |
129 | ||
f7900e25 TA |
130 | int safe_atod(const char *s, double *ret_d); |
131 | ||
8f75a603 LP |
132 | #if __WORDSIZE == 32 |
133 | static inline int safe_atolu(const char *s, unsigned long *ret_u) { | |
134 | assert_cc(sizeof(unsigned long) == sizeof(unsigned)); | |
135 | return safe_atou(s, (unsigned*) ret_u); | |
136 | } | |
137 | static inline int safe_atoli(const char *s, long int *ret_u) { | |
138 | assert_cc(sizeof(long int) == sizeof(int)); | |
139 | return safe_atoi(s, (int*) ret_u); | |
140 | } | |
141 | #else | |
142 | static inline int safe_atolu(const char *s, unsigned long *ret_u) { | |
143 | assert_cc(sizeof(unsigned long) == sizeof(unsigned long long)); | |
144 | return safe_atollu(s, (unsigned long long*) ret_u); | |
145 | } | |
146 | static inline int safe_atoli(const char *s, long int *ret_u) { | |
147 | assert_cc(sizeof(long int) == sizeof(long long int)); | |
148 | return safe_atolli(s, (long long int*) ret_u); | |
149 | } | |
150 | #endif | |
151 | ||
a838e6a1 LP |
152 | static inline int safe_atou32(const char *s, uint32_t *ret_u) { |
153 | assert_cc(sizeof(uint32_t) == sizeof(unsigned)); | |
154 | return safe_atou(s, (unsigned*) ret_u); | |
155 | } | |
156 | ||
8f75a603 | 157 | static inline int safe_atoi32(const char *s, int32_t *ret_i) { |
a838e6a1 | 158 | assert_cc(sizeof(int32_t) == sizeof(int)); |
8f75a603 | 159 | return safe_atoi(s, (int*) ret_i); |
a838e6a1 LP |
160 | } |
161 | ||
8f75a603 LP |
162 | static inline int safe_atou64(const char *s, uint64_t *ret_u) { |
163 | assert_cc(sizeof(uint64_t) == sizeof(unsigned long long)); | |
164 | return safe_atollu(s, (unsigned long long*) ret_u); | |
165 | } | |
034c6ed7 | 166 | |
8f75a603 LP |
167 | static inline int safe_atoi64(const char *s, int64_t *ret_i) { |
168 | assert_cc(sizeof(int64_t) == sizeof(long long int)); | |
169 | return safe_atolli(s, (long long int*) ret_i); | |
170 | } | |
034c6ed7 | 171 | |
65d2ebdc | 172 | char *split(const char *c, size_t *l, const char *separator, char **state); |
034c6ed7 | 173 | char *split_quoted(const char *c, size_t *l, char **state); |
a41e8209 | 174 | |
034c6ed7 | 175 | #define FOREACH_WORD(word, length, s, state) \ |
f62c0e4f | 176 | for ((state) = NULL, (word) = split((s), &(length), WHITESPACE, &(state)); (word); (word) = split((s), &(length), WHITESPACE, &(state))) |
65d2ebdc LP |
177 | |
178 | #define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \ | |
f62c0e4f | 179 | for ((state) = NULL, (word) = split((s), &(length), (separator), &(state)); (word); (word) = split((s), &(length), (separator), &(state))) |
a41e8209 | 180 | |
034c6ed7 | 181 | #define FOREACH_WORD_QUOTED(word, length, s, state) \ |
f62c0e4f | 182 | for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state))) |
034c6ed7 | 183 | |
034c6ed7 | 184 | pid_t get_parent_of_pid(pid_t pid, pid_t *ppid); |
7640a5de | 185 | int get_starttime_of_pid(pid_t pid, unsigned long long *st); |
034c6ed7 | 186 | |
44d8db9e | 187 | char *strappend(const char *s, const char *suffix); |
fab56fc5 LP |
188 | char *strnappend(const char *s, const char *suffix, size_t length); |
189 | ||
190 | char *replace_env(const char *format, char **env); | |
191 | char **replace_env_argv(char **argv, char **env); | |
44d8db9e | 192 | |
87f0e418 | 193 | int readlink_malloc(const char *p, char **r); |
2c7108c4 | 194 | int readlink_and_make_absolute(const char *p, char **r); |
83096483 | 195 | int readlink_and_canonicalize(const char *p, char **r); |
87f0e418 | 196 | |
2a987ee8 LP |
197 | int reset_all_signal_handlers(void); |
198 | ||
4a72ff34 | 199 | char *strstrip(char *s); |
ee9b5e01 | 200 | char *delete_chars(char *s, const char *bad); |
7072ced8 | 201 | char *truncate_nl(char *s); |
ee9b5e01 | 202 | |
4a72ff34 LP |
203 | char *file_in_same_dir(const char *path, const char *filename); |
204 | ||
c32dd69b LP |
205 | int rmdir_parents(const char *path, const char *stop); |
206 | ||
87d2c1ff LP |
207 | int get_process_comm(pid_t pid, char **name); |
208 | int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line); | |
209 | int get_process_exe(pid_t pid, char **name); | |
7e4ab3c5 | 210 | int get_process_uid(pid_t pid, uid_t *uid); |
901c3d0d | 211 | int get_process_gid(pid_t pid, gid_t *gid); |
7072ced8 | 212 | |
fb624d04 | 213 | char hexchar(int x); |
4fe88d28 LP |
214 | int unhexchar(char c); |
215 | char octchar(int x); | |
216 | int unoctchar(char c); | |
5af98f82 LP |
217 | char decchar(int x); |
218 | int undecchar(char c); | |
4fe88d28 LP |
219 | |
220 | char *cescape(const char *s); | |
221 | char *cunescape(const char *s); | |
6febfd0d | 222 | char *cunescape_length(const char *s, size_t length); |
5b4c61cd | 223 | char *cunescape_length_with_prefix(const char *s, size_t length, const char *prefix); |
6febfd0d LP |
224 | |
225 | char *xescape(const char *s, const char *bad); | |
226 | ||
227 | char *bus_path_escape(const char *s); | |
228 | char *bus_path_unescape(const char *s); | |
4fe88d28 | 229 | |
4fe88d28 LP |
230 | char *ascii_strlower(char *path); |
231 | ||
87d2c1ff LP |
232 | bool dirent_is_file(const struct dirent *de); |
233 | bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix); | |
234 | ||
c85dc17b LP |
235 | bool ignore_file(const char *filename); |
236 | ||
db12775d LP |
237 | bool chars_intersect(const char *a, const char *b); |
238 | ||
843d2643 | 239 | int make_stdio(int fd); |
ade509ce | 240 | int make_null_stdio(void); |
cd3bd60a | 241 | int make_console_stdio(void); |
843d2643 | 242 | |
d3782d60 LP |
243 | unsigned long long random_ull(void); |
244 | ||
f8b69d1d | 245 | /* For basic lookup tables with strictly enumerated entries */ |
4e240ab0 MS |
246 | #define __DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \ |
247 | scope const char *name##_to_string(type i) { \ | |
1dccbe19 LP |
248 | if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \ |
249 | return NULL; \ | |
250 | return name##_table[i]; \ | |
251 | } \ | |
4e240ab0 | 252 | scope type name##_from_string(const char *s) { \ |
1dccbe19 LP |
253 | type i; \ |
254 | assert(s); \ | |
255 | for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \ | |
4fd5948e LP |
256 | if (name##_table[i] && \ |
257 | streq(name##_table[i], s)) \ | |
1dccbe19 LP |
258 | return i; \ |
259 | return (type) -1; \ | |
260 | } \ | |
261 | struct __useless_struct_to_allow_trailing_semicolon__ | |
262 | ||
4e240ab0 MS |
263 | #define DEFINE_STRING_TABLE_LOOKUP(name,type) __DEFINE_STRING_TABLE_LOOKUP(name,type,) |
264 | #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) __DEFINE_STRING_TABLE_LOOKUP(name,type,static) | |
1dccbe19 | 265 | |
f8b69d1d MS |
266 | /* For string conversions where numbers are also acceptable */ |
267 | #define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \ | |
268 | int name##_to_string_alloc(type i, char **str) { \ | |
269 | char *s; \ | |
270 | int r; \ | |
271 | if (i < 0 || i > max) \ | |
272 | return -ERANGE; \ | |
273 | if (i < (type) ELEMENTSOF(name##_table)) { \ | |
274 | s = strdup(name##_table[i]); \ | |
275 | if (!s) \ | |
276 | return log_oom(); \ | |
277 | } else { \ | |
278 | r = asprintf(&s, "%u", i); \ | |
279 | if (r < 0) \ | |
280 | return log_oom(); \ | |
281 | } \ | |
282 | *str = s; \ | |
283 | return 0; \ | |
284 | } \ | |
285 | type name##_from_string(const char *s) { \ | |
286 | type i; \ | |
287 | unsigned u = 0; \ | |
288 | assert(s); \ | |
289 | for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \ | |
290 | if (name##_table[i] && \ | |
291 | streq(name##_table[i], s)) \ | |
292 | return i; \ | |
8511dd18 | 293 | if (safe_atou(s, &u) >= 0 && u <= max) \ |
f8b69d1d MS |
294 | return (type) u; \ |
295 | return (type) -1; \ | |
296 | } \ | |
297 | struct __useless_struct_to_allow_trailing_semicolon__ | |
298 | ||
3a0ecb08 LP |
299 | int fd_nonblock(int fd, bool nonblock); |
300 | int fd_cloexec(int fd, bool cloexec); | |
301 | ||
a0d40ac5 LP |
302 | int close_all_fds(const int except[], unsigned n_except); |
303 | ||
42856c10 LP |
304 | bool fstype_is_network(const char *fstype); |
305 | ||
601f6a1e LP |
306 | int chvt(int vt); |
307 | ||
8f2d43a0 | 308 | int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl); |
80876c20 LP |
309 | int ask(char *ret, const char *replies, const char *text, ...); |
310 | ||
512947d4 | 311 | int reset_terminal_fd(int fd, bool switch_to_text); |
6ea832a2 LP |
312 | int reset_terminal(const char *name); |
313 | ||
80876c20 | 314 | int open_terminal(const char *name, int mode); |
af6da548 | 315 | int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocstty_eperm, usec_t timeout); |
80876c20 LP |
316 | int release_terminal(void); |
317 | ||
318 | int flush_fd(int fd); | |
319 | ||
9a34ec5f LP |
320 | int ignore_signals(int sig, ...); |
321 | int default_signals(int sig, ...); | |
322 | int sigaction_many(const struct sigaction *sa, ...); | |
a337c6fc | 323 | |
8d567588 | 324 | int close_pipe(int p[]); |
5a3ab509 | 325 | int fopen_temporary(const char *path, FILE **_f, char **_temp_path); |
8d567588 | 326 | |
eb22ac37 LP |
327 | ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll); |
328 | ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll); | |
8d567588 | 329 | |
8407a5d0 LP |
330 | bool is_device_path(const char *path); |
331 | ||
01f78473 | 332 | int dir_is_empty(const char *path); |
844ec79b | 333 | char* dirname_malloc(const char *path); |
01f78473 | 334 | |
5b6319dc | 335 | void rename_process(const char name[8]); |
2d368c14 | 336 | |
7d793605 LP |
337 | void sigset_add_many(sigset_t *ss, ...); |
338 | ||
344de609 | 339 | bool hostname_is_set(void); |
7c5f152a LP |
340 | |
341 | char* gethostname_malloc(void); | |
ef2f1067 | 342 | char* getlogname_malloc(void); |
7c5f152a | 343 | char* getusername_malloc(void); |
fc116c6a LP |
344 | |
345 | int getttyname_malloc(int fd, char **r); | |
346 | int getttyname_harder(int fd, char **r); | |
347 | ||
4d6d6518 LP |
348 | int get_ctty_devnr(pid_t pid, dev_t *d); |
349 | int get_ctty(pid_t, dev_t *_devnr, char **r); | |
8c6db833 LP |
350 | |
351 | int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid); | |
f4b47811 | 352 | int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid); |
8c6db833 | 353 | |
597f43c7 | 354 | int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev); |
f56d5db9 | 355 | int rm_rf_children_dangerous(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev); |
ad293f5a | 356 | int rm_rf(const char *path, bool only_dirs, bool delete_root, bool honour_sticky); |
f56d5db9 | 357 | int rm_rf_dangerous(const char *path, bool only_dirs, bool delete_root, bool honour_sticky); |
ef2f1067 | 358 | |
1325aa42 LP |
359 | int pipe_eof(int fd); |
360 | ||
82c121a4 LP |
361 | cpu_set_t* cpu_set_malloc(unsigned *ncpus); |
362 | ||
984a2be4 MS |
363 | int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap); |
364 | int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...); | |
669bec5d | 365 | int status_welcome(void); |
9e58ff9c | 366 | |
81beb750 | 367 | int fd_columns(int fd); |
72f59706 | 368 | unsigned columns(void); |
8f2d43a0 LP |
369 | int fd_lines(int fd); |
370 | unsigned lines(void); | |
ed757c0c LP |
371 | void columns_lines_cache_reset(int _unused_ signum); |
372 | ||
373 | bool on_tty(void); | |
8f2d43a0 | 374 | |
b4f10a5e LP |
375 | int running_in_chroot(void); |
376 | ||
72f59706 LP |
377 | char *ellipsize(const char *s, size_t length, unsigned percent); |
378 | char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent); | |
8fe914ec | 379 | |
f6144808 LP |
380 | int touch(const char *path); |
381 | ||
97c4a07d | 382 | char *unquote(const char *s, const char *quotes); |
5f7c426e | 383 | char *normalize_env_assignment(const char *s); |
11ce3427 | 384 | |
8e12a6ae | 385 | int wait_for_terminate(pid_t pid, siginfo_t *status); |
97c4a07d | 386 | int wait_for_terminate_and_warn(const char *name, pid_t pid); |
2e78aa99 | 387 | |
3c14d26c LP |
388 | _noreturn_ void freeze(void); |
389 | ||
00dc5d76 | 390 | bool null_or_empty(struct stat *st); |
83096483 | 391 | int null_or_empty_path(const char *fn); |
00dc5d76 | 392 | |
a247755d | 393 | DIR *xopendirat(int dirfd, const char *name, int flags); |
3b63d2d3 | 394 | |
e23a0ce8 LP |
395 | char *fstab_node_to_udev_node(const char *p); |
396 | ||
21baf21a | 397 | char *resolve_dev_console(char **active); |
f212ac12 | 398 | bool tty_is_vc(const char *tty); |
3043935f | 399 | bool tty_is_vc_resolve(const char *tty); |
d1122ad5 | 400 | bool tty_is_console(const char *tty); |
98a28fef | 401 | int vtnr_from_tty(const char *tty); |
e3aa71c3 LP |
402 | const char *default_term_for_tty(const char *tty); |
403 | ||
83cc030f LP |
404 | void execute_directory(const char *directory, DIR *_d, char *argv[]); |
405 | ||
430c18ed LP |
406 | int kill_and_sigcont(pid_t pid, int sig); |
407 | ||
05feefe0 LP |
408 | bool nulstr_contains(const char*nulstr, const char *needle); |
409 | ||
6faa1114 LP |
410 | bool plymouth_running(void); |
411 | ||
9beb3f4d LP |
412 | bool hostname_is_valid(const char *s); |
413 | char* hostname_cleanup(char *s); | |
414 | ||
415 | char* strshorten(char *s, size_t l); | |
416 | ||
6ea832a2 LP |
417 | int terminal_vhangup_fd(int fd); |
418 | int terminal_vhangup(const char *name); | |
419 | ||
420 | int vt_disallocate(const char *name); | |
421 | ||
34ca941c | 422 | int copy_file(const char *from, const char *to); |
424a19f8 LP |
423 | |
424 | int symlink_atomic(const char *from, const char *to); | |
34ca941c LP |
425 | |
426 | int fchmod_umask(int fd, mode_t mode); | |
427 | ||
4d6d6518 LP |
428 | bool display_is_local(const char *display); |
429 | int socket_from_display(const char *display, char **path); | |
430 | ||
d05c5031 | 431 | int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell); |
4b67834e | 432 | int get_group_creds(const char **groupname, gid_t *gid); |
1cccf435 | 433 | |
4468addc | 434 | int in_gid(gid_t gid); |
43673799 LP |
435 | int in_group(const char *name); |
436 | ||
59164be4 | 437 | char* uid_to_name(uid_t uid); |
4468addc | 438 | char* gid_to_name(gid_t gid); |
59164be4 | 439 | |
8092a428 LP |
440 | int glob_exists(const char *path); |
441 | ||
83096483 LP |
442 | int dirent_ensure_type(DIR *d, struct dirent *de); |
443 | ||
444 | int in_search_path(const char *path, char **search); | |
034a2a52 | 445 | int get_files_in_directory(const char *path, char ***list); |
83096483 | 446 | |
b7def684 | 447 | char *strjoin(const char *x, ...) _sentinel_; |
911a4828 | 448 | |
b636465b LP |
449 | bool is_main_thread(void); |
450 | ||
ab1f0633 LP |
451 | bool in_charset(const char *s, const char* charset); |
452 | ||
94959f0f LP |
453 | int block_get_whole_disk(dev_t d, dev_t *ret); |
454 | ||
8d53b453 | 455 | int file_is_priv_sticky(const char *p); |
ad293f5a | 456 | |
fb9de93d LP |
457 | int strdup_or_null(const char *a, char **b); |
458 | ||
e23a0ce8 | 459 | #define NULSTR_FOREACH(i, l) \ |
c4e2ceae LP |
460 | for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1) |
461 | ||
5c0532d1 LP |
462 | #define NULSTR_FOREACH_PAIR(i, j, l) \ |
463 | for ((i) = (l), (j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i)) | |
464 | ||
f8b69d1d | 465 | int ioprio_class_to_string_alloc(int i, char **s); |
1dccbe19 LP |
466 | int ioprio_class_from_string(const char *s); |
467 | ||
468 | const char *sigchld_code_to_string(int i); | |
469 | int sigchld_code_from_string(const char *s); | |
470 | ||
f8b69d1d | 471 | int log_facility_unshifted_to_string_alloc(int i, char **s); |
7d76f312 | 472 | int log_facility_unshifted_from_string(const char *s); |
1dccbe19 | 473 | |
f8b69d1d | 474 | int log_level_to_string_alloc(int i, char **s); |
1dccbe19 LP |
475 | int log_level_from_string(const char *s); |
476 | ||
f8b69d1d | 477 | int sched_policy_to_string_alloc(int i, char **s); |
1dccbe19 LP |
478 | int sched_policy_from_string(const char *s); |
479 | ||
480 | const char *rlimit_to_string(int i); | |
481 | int rlimit_from_string(const char *s); | |
482 | ||
f8b69d1d | 483 | int ip_tos_to_string_alloc(int i, char **s); |
4fd5948e LP |
484 | int ip_tos_from_string(const char *s); |
485 | ||
2e22afe9 LP |
486 | const char *signal_to_string(int i); |
487 | int signal_from_string(const char *s); | |
488 | ||
8a0867d6 LP |
489 | int signal_from_string_try_harder(const char *s); |
490 | ||
9a0e6896 LP |
491 | extern int saved_argc; |
492 | extern char **saved_argv; | |
493 | ||
65457142 FC |
494 | bool kexec_loaded(void); |
495 | ||
87d2c1ff LP |
496 | int prot_from_flags(int flags); |
497 | ||
babfc091 LP |
498 | char *format_bytes(char *buf, size_t l, off_t t); |
499 | ||
8f2d43a0 | 500 | int fd_wait_for_event(int fd, int event, usec_t timeout); |
df50185b | 501 | |
4b8772bf | 502 | void* memdup(const void *p, size_t l) _malloc_; |
55d7bfc1 | 503 | |
1e5678d0 LP |
504 | int is_kernel_thread(pid_t pid); |
505 | ||
bb99a35a LP |
506 | int fd_inc_sndbuf(int fd, size_t n); |
507 | int fd_inc_rcvbuf(int fd, size_t n); | |
6bb92a16 | 508 | |
9bdc770c | 509 | int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...); |
6bb92a16 | 510 | |
68faf98c LP |
511 | int setrlimit_closest(int resource, const struct rlimit *rlim); |
512 | ||
ab94af92 LP |
513 | int getenv_for_pid(pid_t pid, const char *field, char **_value); |
514 | ||
d889a206 | 515 | int can_sleep(const char *type); |
6524990f | 516 | int can_sleep_disk(const char *type); |
d889a206 | 517 | |
49dbfa7b LP |
518 | bool is_valid_documentation_url(const char *url); |
519 | ||
9be346c9 | 520 | bool in_initrd(void); |
069cfc85 LP |
521 | |
522 | void warn_melody(void); | |
523 | ||
7c5f152a | 524 | int get_home_dir(char **ret); |
2fbe635a | 525 | |
a740c14c MS |
526 | static inline void freep(void *p) { |
527 | free(*(void**) p); | |
528 | } | |
529 | ||
2fbe635a | 530 | void fclosep(FILE **f); |
e985665d | 531 | void pclosep(FILE **f); |
e67f47e5 | 532 | void closep(int *fd); |
a05f97b3 | 533 | void closedirp(DIR **d); |
a740c14c MS |
534 | static inline void umaskp(mode_t *u) { |
535 | umask(*u); | |
536 | } | |
4b8772bf | 537 | |
763c7aa2 ZJS |
538 | static inline void journal_closep(sd_journal **j) { |
539 | sd_journal_close(*j); | |
540 | } | |
541 | ||
c84a9488 ZJS |
542 | #define _cleanup_globfree_ __attribute__((cleanup(globfree))) |
543 | ||
4b8772bf | 544 | _malloc_ static inline void *malloc_multiply(size_t a, size_t b) { |
aa408e77 | 545 | if (_unlikely_(b == 0 || a > ((size_t) -1) / b)) |
4b8772bf LP |
546 | return NULL; |
547 | ||
548 | return malloc(a * b); | |
549 | } | |
550 | ||
040f18ea | 551 | _malloc_ static inline void *memdup_multiply(const void *p, size_t a, size_t b) { |
aa408e77 | 552 | if (_unlikely_(b == 0 || a > ((size_t) -1) / b)) |
4b8772bf LP |
553 | return NULL; |
554 | ||
555 | return memdup(p, a * b); | |
556 | } | |
0b507b17 LP |
557 | |
558 | bool filename_is_safe(const char *p); | |
e884315e | 559 | bool path_is_safe(const char *p); |
0b507b17 | 560 | bool string_is_safe(const char *p); |
4d1a6904 | 561 | bool string_has_cc(const char *p); |
cfbc22ab | 562 | |
a9e12476 KS |
563 | void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size, |
564 | int (*compar) (const void *, const void *, void *), | |
565 | void *arg); | |
09017585 MS |
566 | |
567 | bool is_locale_utf8(void); | |
c339d977 MS |
568 | |
569 | typedef enum DrawSpecialChar { | |
45a5ff0d MS |
570 | DRAW_TREE_VERT, |
571 | DRAW_TREE_BRANCH, | |
572 | DRAW_TREE_RIGHT, | |
55c0b89c | 573 | DRAW_TREE_SPACE, |
c339d977 MS |
574 | DRAW_TRIANGULAR_BULLET, |
575 | _DRAW_SPECIAL_CHAR_MAX | |
576 | } DrawSpecialChar; | |
577 | const char *draw_special_char(DrawSpecialChar ch); | |
409bc9c3 LP |
578 | |
579 | char *strreplace(const char *text, const char *old_string, const char *new_string); | |
e8bc0ea2 LP |
580 | |
581 | char *strip_tab_ansi(char **p, size_t *l); | |
240dbaa4 LP |
582 | |
583 | int on_ac_power(void); | |
f74e605f | 584 | |
fabe5c0e LP |
585 | int search_and_fopen(const char *path, const char *mode, const char **search, FILE **_f); |
586 | int search_and_fopen_nulstr(const char *path, const char *mode, const char *search, FILE **_f); | |
d34cd374 | 587 | int create_tmp_dir(char template[], char** dir_name); |
fabe5c0e | 588 | |
9db11a99 LP |
589 | #define FOREACH_LINE(line, f, on_error) \ |
590 | for (;;) \ | |
f74e605f LP |
591 | if (!fgets(line, sizeof(line), f)) { \ |
592 | if (ferror(f)) { \ | |
593 | on_error; \ | |
594 | } \ | |
595 | break; \ | |
596 | } else | |
9db11a99 LP |
597 | |
598 | #define FOREACH_DIRENT(de, d, on_error) \ | |
599 | for (errno = 0, de = readdir(d);; errno = 0, de = readdir(d)) \ | |
600 | if (!de) { \ | |
8333c77e | 601 | if (errno > 0) { \ |
9db11a99 LP |
602 | on_error; \ |
603 | } \ | |
604 | break; \ | |
605 | } else if (ignore_file((de)->d_name)) \ | |
606 | continue; \ | |
607 | else | |
6282c859 MS |
608 | |
609 | static inline void *mempset(void *s, int c, size_t n) { | |
610 | memset(s, c, n); | |
611 | return (char*)s + n; | |
612 | } | |
66e35261 LP |
613 | |
614 | char *hexmem(const void *p, size_t l); | |
2181a7f5 LP |
615 | void *unhexmem(const char *p, size_t l); |
616 | ||
66e35261 | 617 | char *strextend(char **x, ...); |
9a17484d | 618 | char *strrep(const char *s, unsigned n); |
392d5b37 LP |
619 | |
620 | void* greedy_realloc(void **p, size_t *allocated, size_t need); | |
2244a6fb ZJS |
621 | #define GREEDY_REALLOC(array, allocated, need) \ |
622 | greedy_realloc((void**) &(array), &(allocated), (sizeof *array) * (need)) | |
5c0aa72a | 623 | |
5c0d398d | 624 | static inline void _reset_errno_(int *saved_errno) { |
5c0aa72a LP |
625 | errno = *saved_errno; |
626 | } | |
627 | ||
5c0d398d LP |
628 | #define PROTECT_ERRNO __attribute__((cleanup(_reset_errno_))) int _saved_errno_ = errno |
629 | ||
630 | struct umask_struct { | |
631 | mode_t mask; | |
632 | bool quit; | |
633 | }; | |
634 | ||
635 | static inline void _reset_umask_(struct umask_struct *s) { | |
636 | umask(s->mask); | |
637 | }; | |
638 | ||
639 | #define RUN_WITH_UMASK(mask) \ | |
640 | for (__attribute__((cleanup(_reset_umask_))) struct umask_struct _saved_umask_ = { umask(mask), false }; \ | |
641 | !_saved_umask_.quit ; \ | |
642 | _saved_umask_.quit = true) | |
144e51ec CR |
643 | |
644 | static inline unsigned u64log2(uint64_t n) { | |
645 | return (n > 1) ? __builtin_clzll(n) ^ 63U : 0; | |
646 | } | |
79d860fe MP |
647 | |
648 | static inline bool logind_running(void) { | |
649 | return access("/run/systemd/seats/", F_OK) >= 0; | |
650 | } | |
4b73a0c0 | 651 | |
75add28a ZJS |
652 | static inline unsigned decimal_str_max(unsigned x) { |
653 | unsigned ans = 1; | |
654 | while (x /= 10) | |
655 | ans ++; | |
656 | return ans; | |
657 | } | |
658 | ||
4b73a0c0 | 659 | int unlink_noerrno(const char *path); |
ed5c5dbd LP |
660 | |
661 | #define alloca0(n) \ | |
662 | ({ \ | |
663 | char *__new; \ | |
664 | size_t __len = n; \ | |
665 | __new = alloca(__len); \ | |
666 | (void *) memset(__new, 0, __len); \ | |
667 | }) |