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