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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> |
60918275 | 33 | |
a838e6a1 LP |
34 | #include "macro.h" |
35 | ||
60918275 LP |
36 | typedef uint64_t usec_t; |
37 | ||
63983207 | 38 | typedef struct dual_timestamp { |
871d7de4 LP |
39 | usec_t realtime; |
40 | usec_t monotonic; | |
63983207 | 41 | } dual_timestamp; |
871d7de4 | 42 | |
034c6ed7 LP |
43 | #define MSEC_PER_SEC 1000ULL |
44 | #define USEC_PER_SEC 1000000ULL | |
45 | #define USEC_PER_MSEC 1000ULL | |
46 | #define NSEC_PER_SEC 1000000000ULL | |
47 | #define NSEC_PER_MSEC 1000000ULL | |
60918275 LP |
48 | #define NSEC_PER_USEC 1000ULL |
49 | ||
24a6e4a4 LP |
50 | #define USEC_PER_MINUTE (60ULL*USEC_PER_SEC) |
51 | #define USEC_PER_HOUR (60ULL*USEC_PER_MINUTE) | |
52 | #define USEC_PER_DAY (24ULL*USEC_PER_HOUR) | |
53 | #define USEC_PER_WEEK (7ULL*USEC_PER_DAY) | |
54 | ||
44d8db9e | 55 | /* What is interpreted as whitespace? */ |
4a72ff34 | 56 | #define WHITESPACE " \t\n\r" |
7072ced8 | 57 | #define NEWLINE "\n\r" |
44d8db9e | 58 | |
8b6c7120 | 59 | #define FORMAT_TIMESTAMP_MAX 64 |
871d7de4 | 60 | #define FORMAT_TIMESPAN_MAX 64 |
8b6c7120 | 61 | |
61cbdc4b LP |
62 | #define ANSI_HIGHLIGHT_ON "\x1B[1;31m" |
63 | #define ANSI_HIGHLIGHT_OFF "\x1B[0m" | |
64 | ||
60918275 LP |
65 | usec_t now(clockid_t clock); |
66 | ||
63983207 | 67 | dual_timestamp* dual_timestamp_get(dual_timestamp *ts); |
871d7de4 | 68 | |
60918275 LP |
69 | usec_t timespec_load(const struct timespec *ts); |
70 | struct timespec *timespec_store(struct timespec *ts, usec_t u); | |
71 | ||
72 | usec_t timeval_load(const struct timeval *tv); | |
73 | struct timeval *timeval_store(struct timeval *tv, usec_t u); | |
74 | ||
75 | #define streq(a,b) (strcmp((a),(b)) == 0) | |
76 | ||
e05797fb LP |
77 | bool streq_ptr(const char *a, const char *b); |
78 | ||
60918275 LP |
79 | #define new(t, n) ((t*) malloc(sizeof(t)*(n))) |
80 | ||
81 | #define new0(t, n) ((t*) calloc((n), sizeof(t))) | |
82 | ||
83 | #define malloc0(n) (calloc((n), 1)) | |
84 | ||
85 | static inline const char* yes_no(bool b) { | |
86 | return b ? "yes" : "no"; | |
87 | } | |
88 | ||
89 | static inline const char* strempty(const char *s) { | |
90 | return s ? s : ""; | |
91 | } | |
92 | ||
93 | static inline const char* strnull(const char *s) { | |
94 | return s ? s : "(null)"; | |
95 | } | |
96 | ||
04fd6fe4 LP |
97 | static inline const char *strna(const char *s) { |
98 | return s ? s : "n/a"; | |
99 | } | |
100 | ||
101 | static inline bool is_path_absolute(const char *p) { | |
102 | return *p == '/'; | |
103 | } | |
104 | ||
60918275 LP |
105 | bool endswith(const char *s, const char *postfix); |
106 | bool startswith(const char *s, const char *prefix); | |
3177a7fa | 107 | bool startswith_no_case(const char *s, const char *prefix); |
60918275 | 108 | |
79d6d816 LP |
109 | bool first_word(const char *s, const char *word); |
110 | ||
42f4e3c4 | 111 | int close_nointr(int fd); |
85f136b5 | 112 | void close_nointr_nofail(int fd); |
5b6319dc | 113 | void close_many(const int fds[], unsigned n_fd); |
60918275 | 114 | |
85261803 | 115 | int parse_boolean(const char *v); |
24a6e4a4 | 116 | int parse_usec(const char *t, usec_t *usec); |
3ba686c1 | 117 | int parse_pid(const char *s, pid_t* ret_pid); |
85261803 LP |
118 | |
119 | int safe_atou(const char *s, unsigned *ret_u); | |
120 | int safe_atoi(const char *s, int *ret_i); | |
121 | ||
a838e6a1 LP |
122 | static inline int safe_atou32(const char *s, uint32_t *ret_u) { |
123 | assert_cc(sizeof(uint32_t) == sizeof(unsigned)); | |
124 | return safe_atou(s, (unsigned*) ret_u); | |
125 | } | |
126 | ||
127 | static inline int safe_atoi32(const char *s, int32_t *ret_u) { | |
128 | assert_cc(sizeof(int32_t) == sizeof(int)); | |
129 | return safe_atoi(s, (int*) ret_u); | |
130 | } | |
131 | ||
034c6ed7 LP |
132 | int safe_atolu(const char *s, unsigned long *ret_u); |
133 | int safe_atoli(const char *s, long int *ret_i); | |
134 | ||
135 | int safe_atollu(const char *s, unsigned long long *ret_u); | |
136 | int safe_atolli(const char *s, long long int *ret_i); | |
137 | ||
65d2ebdc | 138 | char *split(const char *c, size_t *l, const char *separator, char **state); |
034c6ed7 | 139 | char *split_quoted(const char *c, size_t *l, char **state); |
a41e8209 | 140 | |
034c6ed7 | 141 | #define FOREACH_WORD(word, length, s, state) \ |
f62c0e4f | 142 | for ((state) = NULL, (word) = split((s), &(length), WHITESPACE, &(state)); (word); (word) = split((s), &(length), WHITESPACE, &(state))) |
65d2ebdc LP |
143 | |
144 | #define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \ | |
f62c0e4f | 145 | for ((state) = NULL, (word) = split((s), &(length), (separator), &(state)); (word); (word) = split((s), &(length), (separator), &(state))) |
a41e8209 | 146 | |
034c6ed7 | 147 | #define FOREACH_WORD_QUOTED(word, length, s, state) \ |
f62c0e4f | 148 | for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state))) |
034c6ed7 | 149 | |
65d2ebdc | 150 | char **split_path_and_make_absolute(const char *p); |
82919e3d | 151 | |
034c6ed7 LP |
152 | pid_t get_parent_of_pid(pid_t pid, pid_t *ppid); |
153 | ||
154 | int write_one_line_file(const char *fn, const char *line); | |
155 | int read_one_line_file(const char *fn, char **line); | |
156 | ||
44d8db9e LP |
157 | char *strappend(const char *s, const char *suffix); |
158 | ||
87f0e418 | 159 | int readlink_malloc(const char *p, char **r); |
2c7108c4 | 160 | int readlink_and_make_absolute(const char *p, char **r); |
87f0e418 LP |
161 | |
162 | char *file_name_from_path(const char *p); | |
0301abf4 LP |
163 | bool is_path(const char *p); |
164 | ||
165 | bool path_is_absolute(const char *p); | |
166 | char *path_make_absolute(const char *p, const char *prefix); | |
65d2ebdc | 167 | char *path_make_absolute_cwd(const char *p); |
c3f6d675 | 168 | |
65d2ebdc | 169 | char **strv_path_make_absolute_cwd(char **l); |
c3f6d675 | 170 | char **strv_path_canonicalize(char **l); |
87f0e418 | 171 | |
2a987ee8 LP |
172 | int reset_all_signal_handlers(void); |
173 | ||
4a72ff34 | 174 | char *strstrip(char *s); |
ee9b5e01 | 175 | char *delete_chars(char *s, const char *bad); |
7072ced8 | 176 | char *truncate_nl(char *s); |
ee9b5e01 | 177 | |
4a72ff34 | 178 | char *file_in_same_dir(const char *path, const char *filename); |
8c6db833 | 179 | int safe_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid); |
a9f5d454 | 180 | int mkdir_parents(const char *path, mode_t mode); |
bbd67135 | 181 | int mkdir_p(const char *path, mode_t mode); |
4a72ff34 | 182 | |
c32dd69b LP |
183 | int rmdir_parents(const char *path, const char *stop); |
184 | ||
7072ced8 | 185 | int get_process_name(pid_t pid, char **name); |
c59760ee | 186 | int get_process_cmdline(pid_t pid, size_t max_length, char **line); |
7072ced8 | 187 | |
fb624d04 | 188 | char hexchar(int x); |
4fe88d28 LP |
189 | int unhexchar(char c); |
190 | char octchar(int x); | |
191 | int unoctchar(char c); | |
5af98f82 LP |
192 | char decchar(int x); |
193 | int undecchar(char c); | |
4fe88d28 LP |
194 | |
195 | char *cescape(const char *s); | |
196 | char *cunescape(const char *s); | |
197 | ||
198 | char *path_kill_slashes(char *path); | |
199 | ||
200 | bool path_startswith(const char *path, const char *prefix); | |
15ae422b | 201 | bool path_equal(const char *a, const char *b); |
4fe88d28 LP |
202 | |
203 | char *ascii_strlower(char *path); | |
204 | ||
205 | char *xescape(const char *s, const char *bad); | |
fb624d04 | 206 | |
ea430986 LP |
207 | char *bus_path_escape(const char *s); |
208 | char *bus_path_unescape(const char *s); | |
209 | ||
c85dc17b LP |
210 | bool ignore_file(const char *filename); |
211 | ||
db12775d LP |
212 | bool chars_intersect(const char *a, const char *b); |
213 | ||
8b6c7120 | 214 | char *format_timestamp(char *buf, size_t l, usec_t t); |
871d7de4 | 215 | char *format_timespan(char *buf, size_t l, usec_t t); |
8b6c7120 | 216 | |
843d2643 LP |
217 | int make_stdio(int fd); |
218 | ||
cb8a8f78 LP |
219 | bool is_clean_exit(int code, int status); |
220 | ||
d3782d60 LP |
221 | unsigned long long random_ull(void); |
222 | ||
1dccbe19 LP |
223 | #define DEFINE_STRING_TABLE_LOOKUP(name,type) \ |
224 | const char *name##_to_string(type i) { \ | |
225 | if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \ | |
226 | return NULL; \ | |
227 | return name##_table[i]; \ | |
228 | } \ | |
229 | type name##_from_string(const char *s) { \ | |
230 | type i; \ | |
a7610064 | 231 | unsigned u = 0; \ |
1dccbe19 LP |
232 | assert(s); \ |
233 | for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \ | |
4fd5948e LP |
234 | if (name##_table[i] && \ |
235 | streq(name##_table[i], s)) \ | |
1dccbe19 | 236 | return i; \ |
d3725859 LP |
237 | if (safe_atou(s, &u) >= 0 && \ |
238 | u < ELEMENTSOF(name##_table)) \ | |
239 | return (type) u; \ | |
1dccbe19 LP |
240 | return (type) -1; \ |
241 | } \ | |
242 | struct __useless_struct_to_allow_trailing_semicolon__ | |
243 | ||
244 | ||
3a0ecb08 LP |
245 | int fd_nonblock(int fd, bool nonblock); |
246 | int fd_cloexec(int fd, bool cloexec); | |
247 | ||
a0d40ac5 LP |
248 | int close_all_fds(const int except[], unsigned n_except); |
249 | ||
42856c10 LP |
250 | bool fstype_is_network(const char *fstype); |
251 | ||
601f6a1e LP |
252 | int chvt(int vt); |
253 | ||
80876c20 LP |
254 | int read_one_char(FILE *f, char *ret, bool *need_nl); |
255 | int ask(char *ret, const char *replies, const char *text, ...); | |
256 | ||
257 | int reset_terminal(int fd); | |
258 | int open_terminal(const char *name, int mode); | |
21de3988 | 259 | int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocstty_eperm); |
80876c20 LP |
260 | int release_terminal(void); |
261 | ||
262 | int flush_fd(int fd); | |
263 | ||
9a34ec5f LP |
264 | int ignore_signals(int sig, ...); |
265 | int default_signals(int sig, ...); | |
266 | int sigaction_many(const struct sigaction *sa, ...); | |
a337c6fc | 267 | |
8d567588 LP |
268 | int close_pipe(int p[]); |
269 | ||
eb22ac37 LP |
270 | ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll); |
271 | ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll); | |
8d567588 LP |
272 | |
273 | int path_is_mount_point(const char *path); | |
274 | ||
8407a5d0 LP |
275 | bool is_device_path(const char *path); |
276 | ||
01f78473 LP |
277 | int dir_is_empty(const char *path); |
278 | ||
5b6319dc | 279 | void rename_process(const char name[8]); |
2d368c14 | 280 | |
7d793605 LP |
281 | void sigset_add_many(sigset_t *ss, ...); |
282 | ||
ef2f1067 LP |
283 | char* gethostname_malloc(void); |
284 | char* getlogname_malloc(void); | |
8c6db833 LP |
285 | int getttyname_malloc(char **r); |
286 | int getmachineid_malloc(char **r); | |
287 | ||
288 | int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid); | |
289 | ||
290 | int rm_rf(const char *path, bool only_dirs, bool delete_root); | |
ef2f1067 | 291 | |
82c121a4 LP |
292 | cpu_set_t* cpu_set_malloc(unsigned *ncpus); |
293 | ||
9e58ff9c | 294 | void status_vprintf(const char *format, va_list ap); |
c846ff47 LP |
295 | void status_printf(const char *format, ...); |
296 | void status_welcome(void); | |
9e58ff9c | 297 | |
1dccbe19 LP |
298 | const char *ioprio_class_to_string(int i); |
299 | int ioprio_class_from_string(const char *s); | |
300 | ||
301 | const char *sigchld_code_to_string(int i); | |
302 | int sigchld_code_from_string(const char *s); | |
303 | ||
304 | const char *log_facility_to_string(int i); | |
305 | int log_facility_from_string(const char *s); | |
306 | ||
307 | const char *log_level_to_string(int i); | |
308 | int log_level_from_string(const char *s); | |
309 | ||
310 | const char *sched_policy_to_string(int i); | |
311 | int sched_policy_from_string(const char *s); | |
312 | ||
313 | const char *rlimit_to_string(int i); | |
314 | int rlimit_from_string(const char *s); | |
315 | ||
4fd5948e LP |
316 | const char *ip_tos_to_string(int i); |
317 | int ip_tos_from_string(const char *s); | |
318 | ||
60918275 | 319 | #endif |