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60918275 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
2 | ||
3 | #ifndef fooutilhfoo | |
4 | #define fooutilhfoo | |
5 | ||
a7334b09 LP |
6 | /*** |
7 | This file is part of systemd. | |
8 | ||
9 | Copyright 2010 Lennart Poettering | |
10 | ||
11 | systemd is free software; you can redistribute it and/or modify it | |
12 | under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | systemd is distributed in the hope that it will be useful, but | |
17 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
22 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
23 | ***/ | |
24 | ||
60918275 LP |
25 | #include <inttypes.h> |
26 | #include <time.h> | |
27 | #include <sys/time.h> | |
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> |
60918275 | 34 | |
a838e6a1 LP |
35 | #include "macro.h" |
36 | ||
60918275 LP |
37 | typedef uint64_t usec_t; |
38 | ||
63983207 | 39 | typedef struct dual_timestamp { |
871d7de4 LP |
40 | usec_t realtime; |
41 | usec_t monotonic; | |
63983207 | 42 | } dual_timestamp; |
871d7de4 | 43 | |
034c6ed7 LP |
44 | #define MSEC_PER_SEC 1000ULL |
45 | #define USEC_PER_SEC 1000000ULL | |
46 | #define USEC_PER_MSEC 1000ULL | |
47 | #define NSEC_PER_SEC 1000000000ULL | |
48 | #define NSEC_PER_MSEC 1000000ULL | |
60918275 LP |
49 | #define NSEC_PER_USEC 1000ULL |
50 | ||
24a6e4a4 LP |
51 | #define USEC_PER_MINUTE (60ULL*USEC_PER_SEC) |
52 | #define USEC_PER_HOUR (60ULL*USEC_PER_MINUTE) | |
53 | #define USEC_PER_DAY (24ULL*USEC_PER_HOUR) | |
54 | #define USEC_PER_WEEK (7ULL*USEC_PER_DAY) | |
55 | ||
44d8db9e | 56 | /* What is interpreted as whitespace? */ |
4a72ff34 | 57 | #define WHITESPACE " \t\n\r" |
7072ced8 | 58 | #define NEWLINE "\n\r" |
44d8db9e | 59 | |
8b6c7120 | 60 | #define FORMAT_TIMESTAMP_MAX 64 |
871d7de4 | 61 | #define FORMAT_TIMESPAN_MAX 64 |
8b6c7120 | 62 | |
61cbdc4b LP |
63 | #define ANSI_HIGHLIGHT_ON "\x1B[1;31m" |
64 | #define ANSI_HIGHLIGHT_OFF "\x1B[0m" | |
65 | ||
60918275 LP |
66 | usec_t now(clockid_t clock); |
67 | ||
63983207 | 68 | dual_timestamp* dual_timestamp_get(dual_timestamp *ts); |
871d7de4 | 69 | |
60918275 LP |
70 | usec_t timespec_load(const struct timespec *ts); |
71 | struct timespec *timespec_store(struct timespec *ts, usec_t u); | |
72 | ||
73 | usec_t timeval_load(const struct timeval *tv); | |
74 | struct timeval *timeval_store(struct timeval *tv, usec_t u); | |
75 | ||
76 | #define streq(a,b) (strcmp((a),(b)) == 0) | |
77 | ||
e05797fb LP |
78 | bool streq_ptr(const char *a, const char *b); |
79 | ||
60918275 LP |
80 | #define new(t, n) ((t*) malloc(sizeof(t)*(n))) |
81 | ||
82 | #define new0(t, n) ((t*) calloc((n), sizeof(t))) | |
83 | ||
84 | #define malloc0(n) (calloc((n), 1)) | |
85 | ||
86 | static inline const char* yes_no(bool b) { | |
87 | return b ? "yes" : "no"; | |
88 | } | |
89 | ||
90 | static inline const char* strempty(const char *s) { | |
91 | return s ? s : ""; | |
92 | } | |
93 | ||
94 | static inline const char* strnull(const char *s) { | |
95 | return s ? s : "(null)"; | |
96 | } | |
97 | ||
04fd6fe4 LP |
98 | static inline const char *strna(const char *s) { |
99 | return s ? s : "n/a"; | |
100 | } | |
101 | ||
102 | static inline bool is_path_absolute(const char *p) { | |
103 | return *p == '/'; | |
104 | } | |
105 | ||
60918275 LP |
106 | bool endswith(const char *s, const char *postfix); |
107 | bool startswith(const char *s, const char *prefix); | |
3177a7fa | 108 | bool startswith_no_case(const char *s, const char *prefix); |
60918275 | 109 | |
79d6d816 LP |
110 | bool first_word(const char *s, const char *word); |
111 | ||
42f4e3c4 | 112 | int close_nointr(int fd); |
85f136b5 | 113 | void close_nointr_nofail(int fd); |
5b6319dc | 114 | void close_many(const int fds[], unsigned n_fd); |
60918275 | 115 | |
85261803 | 116 | int parse_boolean(const char *v); |
24a6e4a4 | 117 | int parse_usec(const char *t, usec_t *usec); |
3ba686c1 | 118 | int parse_pid(const char *s, pid_t* ret_pid); |
85261803 LP |
119 | |
120 | int safe_atou(const char *s, unsigned *ret_u); | |
121 | int safe_atoi(const char *s, int *ret_i); | |
122 | ||
8f75a603 LP |
123 | int safe_atollu(const char *s, unsigned long long *ret_u); |
124 | int safe_atolli(const char *s, long long int *ret_i); | |
125 | ||
126 | #if __WORDSIZE == 32 | |
127 | static inline int safe_atolu(const char *s, unsigned long *ret_u) { | |
128 | assert_cc(sizeof(unsigned long) == sizeof(unsigned)); | |
129 | return safe_atou(s, (unsigned*) ret_u); | |
130 | } | |
131 | static inline int safe_atoli(const char *s, long int *ret_u) { | |
132 | assert_cc(sizeof(long int) == sizeof(int)); | |
133 | return safe_atoi(s, (int*) ret_u); | |
134 | } | |
135 | #else | |
136 | static inline int safe_atolu(const char *s, unsigned long *ret_u) { | |
137 | assert_cc(sizeof(unsigned long) == sizeof(unsigned long long)); | |
138 | return safe_atollu(s, (unsigned long long*) ret_u); | |
139 | } | |
140 | static inline int safe_atoli(const char *s, long int *ret_u) { | |
141 | assert_cc(sizeof(long int) == sizeof(long long int)); | |
142 | return safe_atolli(s, (long long int*) ret_u); | |
143 | } | |
144 | #endif | |
145 | ||
a838e6a1 LP |
146 | static inline int safe_atou32(const char *s, uint32_t *ret_u) { |
147 | assert_cc(sizeof(uint32_t) == sizeof(unsigned)); | |
148 | return safe_atou(s, (unsigned*) ret_u); | |
149 | } | |
150 | ||
8f75a603 | 151 | static inline int safe_atoi32(const char *s, int32_t *ret_i) { |
a838e6a1 | 152 | assert_cc(sizeof(int32_t) == sizeof(int)); |
8f75a603 | 153 | return safe_atoi(s, (int*) ret_i); |
a838e6a1 LP |
154 | } |
155 | ||
8f75a603 LP |
156 | static inline int safe_atou64(const char *s, uint64_t *ret_u) { |
157 | assert_cc(sizeof(uint64_t) == sizeof(unsigned long long)); | |
158 | return safe_atollu(s, (unsigned long long*) ret_u); | |
159 | } | |
034c6ed7 | 160 | |
8f75a603 LP |
161 | static inline int safe_atoi64(const char *s, int64_t *ret_i) { |
162 | assert_cc(sizeof(int64_t) == sizeof(long long int)); | |
163 | return safe_atolli(s, (long long int*) ret_i); | |
164 | } | |
034c6ed7 | 165 | |
65d2ebdc | 166 | char *split(const char *c, size_t *l, const char *separator, char **state); |
034c6ed7 | 167 | char *split_quoted(const char *c, size_t *l, char **state); |
a41e8209 | 168 | |
034c6ed7 | 169 | #define FOREACH_WORD(word, length, s, state) \ |
f62c0e4f | 170 | for ((state) = NULL, (word) = split((s), &(length), WHITESPACE, &(state)); (word); (word) = split((s), &(length), WHITESPACE, &(state))) |
65d2ebdc LP |
171 | |
172 | #define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \ | |
f62c0e4f | 173 | for ((state) = NULL, (word) = split((s), &(length), (separator), &(state)); (word); (word) = split((s), &(length), (separator), &(state))) |
a41e8209 | 174 | |
034c6ed7 | 175 | #define FOREACH_WORD_QUOTED(word, length, s, state) \ |
f62c0e4f | 176 | for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state))) |
034c6ed7 | 177 | |
65d2ebdc | 178 | char **split_path_and_make_absolute(const char *p); |
82919e3d | 179 | |
034c6ed7 LP |
180 | pid_t get_parent_of_pid(pid_t pid, pid_t *ppid); |
181 | ||
182 | int write_one_line_file(const char *fn, const char *line); | |
183 | int read_one_line_file(const char *fn, char **line); | |
184 | ||
44d8db9e | 185 | char *strappend(const char *s, const char *suffix); |
fab56fc5 LP |
186 | char *strnappend(const char *s, const char *suffix, size_t length); |
187 | ||
188 | char *replace_env(const char *format, char **env); | |
189 | char **replace_env_argv(char **argv, char **env); | |
44d8db9e | 190 | |
87f0e418 | 191 | int readlink_malloc(const char *p, char **r); |
2c7108c4 | 192 | int readlink_and_make_absolute(const char *p, char **r); |
87f0e418 LP |
193 | |
194 | char *file_name_from_path(const char *p); | |
0301abf4 LP |
195 | bool is_path(const char *p); |
196 | ||
197 | bool path_is_absolute(const char *p); | |
198 | char *path_make_absolute(const char *p, const char *prefix); | |
65d2ebdc | 199 | char *path_make_absolute_cwd(const char *p); |
c3f6d675 | 200 | |
65d2ebdc | 201 | char **strv_path_make_absolute_cwd(char **l); |
c3f6d675 | 202 | char **strv_path_canonicalize(char **l); |
87f0e418 | 203 | |
2a987ee8 LP |
204 | int reset_all_signal_handlers(void); |
205 | ||
4a72ff34 | 206 | char *strstrip(char *s); |
ee9b5e01 | 207 | char *delete_chars(char *s, const char *bad); |
7072ced8 | 208 | char *truncate_nl(char *s); |
ee9b5e01 | 209 | |
4a72ff34 | 210 | char *file_in_same_dir(const char *path, const char *filename); |
8c6db833 | 211 | int safe_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid); |
a9f5d454 | 212 | int mkdir_parents(const char *path, mode_t mode); |
bbd67135 | 213 | int mkdir_p(const char *path, mode_t mode); |
4a72ff34 | 214 | |
c32dd69b LP |
215 | int rmdir_parents(const char *path, const char *stop); |
216 | ||
7072ced8 | 217 | int get_process_name(pid_t pid, char **name); |
c59760ee | 218 | int get_process_cmdline(pid_t pid, size_t max_length, char **line); |
7072ced8 | 219 | |
fb624d04 | 220 | char hexchar(int x); |
4fe88d28 LP |
221 | int unhexchar(char c); |
222 | char octchar(int x); | |
223 | int unoctchar(char c); | |
5af98f82 LP |
224 | char decchar(int x); |
225 | int undecchar(char c); | |
4fe88d28 LP |
226 | |
227 | char *cescape(const char *s); | |
228 | char *cunescape(const char *s); | |
6febfd0d LP |
229 | char *cunescape_length(const char *s, size_t length); |
230 | ||
231 | char *xescape(const char *s, const char *bad); | |
232 | ||
233 | char *bus_path_escape(const char *s); | |
234 | char *bus_path_unescape(const char *s); | |
4fe88d28 LP |
235 | |
236 | char *path_kill_slashes(char *path); | |
237 | ||
238 | bool path_startswith(const char *path, const char *prefix); | |
15ae422b | 239 | bool path_equal(const char *a, const char *b); |
4fe88d28 LP |
240 | |
241 | char *ascii_strlower(char *path); | |
242 | ||
c85dc17b LP |
243 | bool ignore_file(const char *filename); |
244 | ||
db12775d LP |
245 | bool chars_intersect(const char *a, const char *b); |
246 | ||
8b6c7120 | 247 | char *format_timestamp(char *buf, size_t l, usec_t t); |
871d7de4 | 248 | char *format_timespan(char *buf, size_t l, usec_t t); |
8b6c7120 | 249 | |
843d2643 LP |
250 | int make_stdio(int fd); |
251 | ||
cb8a8f78 LP |
252 | bool is_clean_exit(int code, int status); |
253 | ||
d3782d60 LP |
254 | unsigned long long random_ull(void); |
255 | ||
1dccbe19 LP |
256 | #define DEFINE_STRING_TABLE_LOOKUP(name,type) \ |
257 | const char *name##_to_string(type i) { \ | |
258 | if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \ | |
259 | return NULL; \ | |
260 | return name##_table[i]; \ | |
261 | } \ | |
262 | type name##_from_string(const char *s) { \ | |
263 | type i; \ | |
a7610064 | 264 | unsigned u = 0; \ |
1dccbe19 LP |
265 | assert(s); \ |
266 | for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \ | |
4fd5948e LP |
267 | if (name##_table[i] && \ |
268 | streq(name##_table[i], s)) \ | |
1dccbe19 | 269 | return i; \ |
d3725859 LP |
270 | if (safe_atou(s, &u) >= 0 && \ |
271 | u < ELEMENTSOF(name##_table)) \ | |
272 | return (type) u; \ | |
1dccbe19 LP |
273 | return (type) -1; \ |
274 | } \ | |
275 | struct __useless_struct_to_allow_trailing_semicolon__ | |
276 | ||
277 | ||
3a0ecb08 LP |
278 | int fd_nonblock(int fd, bool nonblock); |
279 | int fd_cloexec(int fd, bool cloexec); | |
280 | ||
a0d40ac5 LP |
281 | int close_all_fds(const int except[], unsigned n_except); |
282 | ||
42856c10 LP |
283 | bool fstype_is_network(const char *fstype); |
284 | ||
601f6a1e LP |
285 | int chvt(int vt); |
286 | ||
80876c20 LP |
287 | int read_one_char(FILE *f, char *ret, bool *need_nl); |
288 | int ask(char *ret, const char *replies, const char *text, ...); | |
289 | ||
290 | int reset_terminal(int fd); | |
291 | int open_terminal(const char *name, int mode); | |
21de3988 | 292 | int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocstty_eperm); |
80876c20 LP |
293 | int release_terminal(void); |
294 | ||
295 | int flush_fd(int fd); | |
296 | ||
9a34ec5f LP |
297 | int ignore_signals(int sig, ...); |
298 | int default_signals(int sig, ...); | |
299 | int sigaction_many(const struct sigaction *sa, ...); | |
a337c6fc | 300 | |
8d567588 LP |
301 | int close_pipe(int p[]); |
302 | ||
eb22ac37 LP |
303 | ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll); |
304 | ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll); | |
8d567588 LP |
305 | |
306 | int path_is_mount_point(const char *path); | |
307 | ||
8407a5d0 LP |
308 | bool is_device_path(const char *path); |
309 | ||
01f78473 LP |
310 | int dir_is_empty(const char *path); |
311 | ||
5b6319dc | 312 | void rename_process(const char name[8]); |
2d368c14 | 313 | |
7d793605 LP |
314 | void sigset_add_many(sigset_t *ss, ...); |
315 | ||
ef2f1067 LP |
316 | char* gethostname_malloc(void); |
317 | char* getlogname_malloc(void); | |
8c6db833 LP |
318 | int getttyname_malloc(char **r); |
319 | int getmachineid_malloc(char **r); | |
320 | ||
321 | int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid); | |
322 | ||
323 | int rm_rf(const char *path, bool only_dirs, bool delete_root); | |
ef2f1067 | 324 | |
82c121a4 LP |
325 | cpu_set_t* cpu_set_malloc(unsigned *ncpus); |
326 | ||
9e58ff9c | 327 | void status_vprintf(const char *format, va_list ap); |
c846ff47 LP |
328 | void status_printf(const char *format, ...); |
329 | void status_welcome(void); | |
9e58ff9c | 330 | |
fa776d8e LP |
331 | int columns(void); |
332 | ||
b4f10a5e LP |
333 | int running_in_chroot(void); |
334 | ||
1dccbe19 LP |
335 | const char *ioprio_class_to_string(int i); |
336 | int ioprio_class_from_string(const char *s); | |
337 | ||
338 | const char *sigchld_code_to_string(int i); | |
339 | int sigchld_code_from_string(const char *s); | |
340 | ||
341 | const char *log_facility_to_string(int i); | |
342 | int log_facility_from_string(const char *s); | |
343 | ||
344 | const char *log_level_to_string(int i); | |
345 | int log_level_from_string(const char *s); | |
346 | ||
347 | const char *sched_policy_to_string(int i); | |
348 | int sched_policy_from_string(const char *s); | |
349 | ||
350 | const char *rlimit_to_string(int i); | |
351 | int rlimit_from_string(const char *s); | |
352 | ||
4fd5948e LP |
353 | const char *ip_tos_to_string(int i); |
354 | int ip_tos_from_string(const char *s); | |
355 | ||
60918275 | 356 | #endif |