1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
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
13 (at your option) any later version.
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
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
35 #include <sys/types.h>
38 #include <sys/resource.h>
45 #include "time-util.h"
47 union dirent_storage {
49 uint8_t storage[offsetof(struct dirent, d_name) +
50 ((NAME_MAX + 1 + sizeof(long)) & ~(sizeof(long) - 1))];
53 /* What is interpreted as whitespace? */
54 #define WHITESPACE " \t\n\r"
55 #define NEWLINE "\n\r"
59 #define FORMAT_BYTES_MAX 8
61 #define ANSI_HIGHLIGHT_ON "\x1B[1;39m"
62 #define ANSI_RED_ON "\x1B[31m"
63 #define ANSI_HIGHLIGHT_RED_ON "\x1B[1;31m"
64 #define ANSI_GREEN_ON "\x1B[32m"
65 #define ANSI_HIGHLIGHT_GREEN_ON "\x1B[1;32m"
66 #define ANSI_HIGHLIGHT_YELLOW_ON "\x1B[1;33m"
67 #define ANSI_HIGHLIGHT_OFF "\x1B[0m"
68 #define ANSI_ERASE_TO_END_OF_LINE "\x1B[K"
70 size_t page_size(void);
71 #define PAGE_ALIGN(l) ALIGN_TO((l), page_size())
73 #define streq(a,b) (strcmp((a),(b)) == 0)
74 #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0)
75 #define strcaseeq(a,b) (strcasecmp((a),(b)) == 0)
76 #define strncaseeq(a, b, n) (strncasecmp((a), (b), (n)) == 0)
78 bool streq_ptr(const char *a, const char *b) _pure_;
80 #define new(t, n) ((t*) malloc_multiply(sizeof(t), (n)))
82 #define new0(t, n) ((t*) calloc((n), sizeof(t)))
84 #define newa(t, n) ((t*) alloca(sizeof(t)*(n)))
86 #define newdup(t, p, n) ((t*) memdup_multiply(p, sizeof(t), (n)))
88 #define malloc0(n) (calloc((n), 1))
90 static inline const char* yes_no(bool b) {
91 return b ? "yes" : "no";
94 static inline const char* strempty(const char *s) {
98 static inline const char* strnull(const char *s) {
99 return s ? s : "(null)";
102 static inline const char *strna(const char *s) {
103 return s ? s : "n/a";
106 static inline bool isempty(const char *p) {
110 static inline const char *startswith(const char *s, const char *prefix) {
111 if (strncmp(s, prefix, strlen(prefix)) == 0)
112 return s + strlen(prefix);
116 static inline const char *startswith_no_case(const char *s, const char *prefix) {
117 if (strncasecmp(s, prefix, strlen(prefix)) == 0)
118 return s + strlen(prefix);
122 char *endswith(const char *s, const char *postfix) _pure_;
124 bool first_word(const char *s, const char *word) _pure_;
126 int close_nointr(int fd);
127 void close_nointr_nofail(int fd);
128 void close_many(const int fds[], unsigned n_fd);
130 int parse_boolean(const char *v) _pure_;
131 int parse_bytes(const char *t, off_t *bytes);
132 int parse_pid(const char *s, pid_t* ret_pid);
133 int parse_uid(const char *s, uid_t* ret_uid);
134 #define parse_gid(s, ret_uid) parse_uid(s, ret_uid)
136 int safe_atou(const char *s, unsigned *ret_u);
137 int safe_atoi(const char *s, int *ret_i);
139 int safe_atollu(const char *s, unsigned long long *ret_u);
140 int safe_atolli(const char *s, long long int *ret_i);
142 int safe_atod(const char *s, double *ret_d);
145 static inline int safe_atolu(const char *s, unsigned long *ret_u) {
146 assert_cc(sizeof(unsigned long) == sizeof(unsigned));
147 return safe_atou(s, (unsigned*) ret_u);
149 static inline int safe_atoli(const char *s, long int *ret_u) {
150 assert_cc(sizeof(long int) == sizeof(int));
151 return safe_atoi(s, (int*) ret_u);
154 static inline int safe_atolu(const char *s, unsigned long *ret_u) {
155 assert_cc(sizeof(unsigned long) == sizeof(unsigned long long));
156 return safe_atollu(s, (unsigned long long*) ret_u);
158 static inline int safe_atoli(const char *s, long int *ret_u) {
159 assert_cc(sizeof(long int) == sizeof(long long int));
160 return safe_atolli(s, (long long int*) ret_u);
164 static inline int safe_atou32(const char *s, uint32_t *ret_u) {
165 assert_cc(sizeof(uint32_t) == sizeof(unsigned));
166 return safe_atou(s, (unsigned*) ret_u);
169 static inline int safe_atoi32(const char *s, int32_t *ret_i) {
170 assert_cc(sizeof(int32_t) == sizeof(int));
171 return safe_atoi(s, (int*) ret_i);
174 static inline int safe_atou64(const char *s, uint64_t *ret_u) {
175 assert_cc(sizeof(uint64_t) == sizeof(unsigned long long));
176 return safe_atollu(s, (unsigned long long*) ret_u);
179 static inline int safe_atoi64(const char *s, int64_t *ret_i) {
180 assert_cc(sizeof(int64_t) == sizeof(long long int));
181 return safe_atolli(s, (long long int*) ret_i);
184 char *split(const char *c, size_t *l, const char *separator, char **state);
185 char *split_quoted(const char *c, size_t *l, char **state);
187 #define FOREACH_WORD(word, length, s, state) \
188 for ((state) = NULL, (word) = split((s), &(length), WHITESPACE, &(state)); (word); (word) = split((s), &(length), WHITESPACE, &(state)))
190 #define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \
191 for ((state) = NULL, (word) = split((s), &(length), (separator), &(state)); (word); (word) = split((s), &(length), (separator), &(state)))
193 #define FOREACH_WORD_QUOTED(word, length, s, state) \
194 for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state)))
196 pid_t get_parent_of_pid(pid_t pid, pid_t *ppid);
197 int get_starttime_of_pid(pid_t pid, unsigned long long *st);
199 char *strappend(const char *s, const char *suffix);
200 char *strnappend(const char *s, const char *suffix, size_t length);
202 char *replace_env(const char *format, char **env);
203 char **replace_env_argv(char **argv, char **env);
205 int readlink_malloc(const char *p, char **r);
206 int readlink_and_make_absolute(const char *p, char **r);
207 int readlink_and_canonicalize(const char *p, char **r);
209 int reset_all_signal_handlers(void);
211 char *strstrip(char *s);
212 char *delete_chars(char *s, const char *bad);
213 char *truncate_nl(char *s);
215 char *file_in_same_dir(const char *path, const char *filename);
217 int rmdir_parents(const char *path, const char *stop);
219 int get_process_comm(pid_t pid, char **name);
220 int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line);
221 int get_process_exe(pid_t pid, char **name);
222 int get_process_uid(pid_t pid, uid_t *uid);
223 int get_process_gid(pid_t pid, gid_t *gid);
224 int get_process_capeff(pid_t pid, char **capeff);
226 char hexchar(int x) _const_;
227 int unhexchar(char c) _const_;
228 char octchar(int x) _const_;
229 int unoctchar(char c) _const_;
230 char decchar(int x) _const_;
231 int undecchar(char c) _const_;
233 char *cescape(const char *s);
234 char *cunescape(const char *s);
235 char *cunescape_length(const char *s, size_t length);
236 char *cunescape_length_with_prefix(const char *s, size_t length, const char *prefix);
238 char *xescape(const char *s, const char *bad);
240 char *ascii_strlower(char *path);
242 bool dirent_is_file(const struct dirent *de) _pure_;
243 bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) _pure_;
245 bool ignore_file(const char *filename) _pure_;
247 bool chars_intersect(const char *a, const char *b) _pure_;
249 int make_stdio(int fd);
250 int make_null_stdio(void);
251 int make_console_stdio(void);
253 unsigned long long random_ull(void);
254 unsigned random_u(void);
256 /* For basic lookup tables with strictly enumerated entries */
257 #define __DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \
258 scope const char *name##_to_string(type i) { \
259 if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \
261 return name##_table[i]; \
263 scope type name##_from_string(const char *s) { \
266 for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \
267 if (name##_table[i] && \
268 streq(name##_table[i], s)) \
272 struct __useless_struct_to_allow_trailing_semicolon__
274 #define DEFINE_STRING_TABLE_LOOKUP(name,type) __DEFINE_STRING_TABLE_LOOKUP(name,type,)
275 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) __DEFINE_STRING_TABLE_LOOKUP(name,type,static)
277 /* For string conversions where numbers are also acceptable */
278 #define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \
279 int name##_to_string_alloc(type i, char **str) { \
282 if (i < 0 || i > max) \
284 if (i < (type) ELEMENTSOF(name##_table)) { \
285 s = strdup(name##_table[i]); \
289 r = asprintf(&s, "%u", i); \
296 type name##_from_string(const char *s) { \
300 for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \
301 if (name##_table[i] && \
302 streq(name##_table[i], s)) \
304 if (safe_atou(s, &u) >= 0 && u <= max) \
308 struct __useless_struct_to_allow_trailing_semicolon__
310 int fd_nonblock(int fd, bool nonblock);
311 int fd_cloexec(int fd, bool cloexec);
313 int close_all_fds(const int except[], unsigned n_except);
315 bool fstype_is_network(const char *fstype);
319 int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl);
320 int ask(char *ret, const char *replies, const char *text, ...) _printf_(3, 4);
322 int reset_terminal_fd(int fd, bool switch_to_text);
323 int reset_terminal(const char *name);
325 int open_terminal(const char *name, int mode);
326 int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocstty_eperm, usec_t timeout);
327 int release_terminal(void);
329 int flush_fd(int fd);
331 int ignore_signals(int sig, ...);
332 int default_signals(int sig, ...);
333 int sigaction_many(const struct sigaction *sa, ...);
335 int close_pipe(int p[]);
336 int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
338 ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll);
339 ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll);
341 bool is_device_path(const char *path);
343 int dir_is_empty(const char *path);
344 char* dirname_malloc(const char *path);
346 void rename_process(const char name[8]);
348 void sigset_add_many(sigset_t *ss, ...);
350 bool hostname_is_set(void);
352 char* gethostname_malloc(void);
353 char* getlogname_malloc(void);
354 char* getusername_malloc(void);
356 int getttyname_malloc(int fd, char **r);
357 int getttyname_harder(int fd, char **r);
359 int get_ctty_devnr(pid_t pid, dev_t *d);
360 int get_ctty(pid_t, dev_t *_devnr, char **r);
362 int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid);
363 int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid);
365 int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev);
366 int rm_rf_children_dangerous(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev);
367 int rm_rf(const char *path, bool only_dirs, bool delete_root, bool honour_sticky);
368 int rm_rf_dangerous(const char *path, bool only_dirs, bool delete_root, bool honour_sticky);
370 int pipe_eof(int fd);
372 cpu_set_t* cpu_set_malloc(unsigned *ncpus);
374 int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) _printf_(4,0);
375 int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...) _printf_(4,5);
376 int status_welcome(void);
378 int fd_columns(int fd);
379 unsigned columns(void);
380 int fd_lines(int fd);
381 unsigned lines(void);
382 void columns_lines_cache_reset(int _unused_ signum);
386 static inline const char *ansi_highlight(void) {
387 return on_tty() ? ANSI_HIGHLIGHT_ON : "";
390 static inline const char *ansi_highlight_red(void) {
391 return on_tty() ? ANSI_HIGHLIGHT_RED_ON : "";
394 static inline const char *ansi_highlight_green(void) {
395 return on_tty() ? ANSI_HIGHLIGHT_GREEN_ON : "";
398 static inline const char *ansi_highlight_yellow(void) {
399 return on_tty() ? ANSI_HIGHLIGHT_YELLOW_ON : "";
402 static inline const char *ansi_highlight_off(void) {
403 return on_tty() ? ANSI_HIGHLIGHT_OFF : "";
406 int running_in_chroot(void);
408 char *ellipsize(const char *s, size_t length, unsigned percent);
410 char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent);
412 int touch(const char *path);
414 char *unquote(const char *s, const char *quotes);
415 char *normalize_env_assignment(const char *s);
417 int wait_for_terminate(pid_t pid, siginfo_t *status);
418 int wait_for_terminate_and_warn(const char *name, pid_t pid);
420 _noreturn_ void freeze(void);
422 bool null_or_empty(struct stat *st) _pure_;
423 int null_or_empty_path(const char *fn);
425 DIR *xopendirat(int dirfd, const char *name, int flags);
427 char *fstab_node_to_udev_node(const char *p);
429 char *resolve_dev_console(char **active);
430 bool tty_is_vc(const char *tty);
431 bool tty_is_vc_resolve(const char *tty);
432 bool tty_is_console(const char *tty) _pure_;
433 int vtnr_from_tty(const char *tty);
434 const char *default_term_for_tty(const char *tty);
436 void execute_directory(const char *directory, DIR *_d, char *argv[]);
438 int kill_and_sigcont(pid_t pid, int sig);
440 bool nulstr_contains(const char*nulstr, const char *needle);
442 bool plymouth_running(void);
444 bool hostname_is_valid(const char *s) _pure_;
445 char* hostname_cleanup(char *s, bool lowercase);
447 char* strshorten(char *s, size_t l);
449 int terminal_vhangup_fd(int fd);
450 int terminal_vhangup(const char *name);
452 int vt_disallocate(const char *name);
454 int copy_file(const char *from, const char *to, int flags);
456 int symlink_atomic(const char *from, const char *to);
458 int fchmod_umask(int fd, mode_t mode);
460 bool display_is_local(const char *display) _pure_;
461 int socket_from_display(const char *display, char **path);
463 int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell);
464 int get_group_creds(const char **groupname, gid_t *gid);
466 int in_gid(gid_t gid);
467 int in_group(const char *name);
469 char* uid_to_name(uid_t uid);
470 char* gid_to_name(gid_t gid);
472 int glob_exists(const char *path);
473 int glob_extend(char ***strv, const char *path);
475 int dirent_ensure_type(DIR *d, struct dirent *de);
477 int in_search_path(const char *path, char **search);
478 int get_files_in_directory(const char *path, char ***list);
480 char *strjoin(const char *x, ...) _sentinel_;
482 bool is_main_thread(void);
484 bool in_charset(const char *s, const char* charset) _pure_;
486 int block_get_whole_disk(dev_t d, dev_t *ret);
488 int file_is_priv_sticky(const char *p);
490 int strdup_or_null(const char *a, char **b);
492 #define NULSTR_FOREACH(i, l) \
493 for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)
495 #define NULSTR_FOREACH_PAIR(i, j, l) \
496 for ((i) = (l), (j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i))
498 int ioprio_class_to_string_alloc(int i, char **s);
499 int ioprio_class_from_string(const char *s);
501 const char *sigchld_code_to_string(int i) _const_;
502 int sigchld_code_from_string(const char *s) _pure_;
504 int log_facility_unshifted_to_string_alloc(int i, char **s);
505 int log_facility_unshifted_from_string(const char *s);
507 int log_level_to_string_alloc(int i, char **s);
508 int log_level_from_string(const char *s);
510 int sched_policy_to_string_alloc(int i, char **s);
511 int sched_policy_from_string(const char *s);
513 const char *rlimit_to_string(int i) _const_;
514 int rlimit_from_string(const char *s) _pure_;
516 int ip_tos_to_string_alloc(int i, char **s);
517 int ip_tos_from_string(const char *s);
519 const char *signal_to_string(int i) _const_;
520 int signal_from_string(const char *s) _pure_;
522 int signal_from_string_try_harder(const char *s);
524 extern int saved_argc;
525 extern char **saved_argv;
527 bool kexec_loaded(void);
529 int prot_from_flags(int flags) _const_;
531 char *format_bytes(char *buf, size_t l, off_t t);
533 int fd_wait_for_event(int fd, int event, usec_t timeout);
535 void* memdup(const void *p, size_t l) _alloc_(2);
537 int is_kernel_thread(pid_t pid);
539 int fd_inc_sndbuf(int fd, size_t n);
540 int fd_inc_rcvbuf(int fd, size_t n);
542 int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...);
544 int setrlimit_closest(int resource, const struct rlimit *rlim);
546 int getenv_for_pid(pid_t pid, const char *field, char **_value);
548 bool is_valid_documentation_url(const char *url) _pure_;
550 bool in_initrd(void);
552 void warn_melody(void);
554 int get_home_dir(char **ret);
556 static inline void freep(void *p) {
560 #define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \
561 static inline void func##p(type *p) { \
565 struct __useless_struct_to_allow_trailing_semicolon__
567 static inline void closep(int *fd) {
569 close_nointr_nofail(*fd);
572 static inline void umaskp(mode_t *u) {
576 static inline void close_pipep(int (*p)[2]) {
580 DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, fclose);
581 DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose);
582 DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir);
583 DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
585 #define _cleanup_free_ _cleanup_(freep)
586 #define _cleanup_close_ _cleanup_(closep)
587 #define _cleanup_umask_ _cleanup_(umaskp)
588 #define _cleanup_globfree_ _cleanup_(globfree)
589 #define _cleanup_fclose_ _cleanup_(fclosep)
590 #define _cleanup_pclose_ _cleanup_(pclosep)
591 #define _cleanup_closedir_ _cleanup_(closedirp)
592 #define _cleanup_endmntent_ _cleanup_(endmntentp)
593 #define _cleanup_close_pipe_ _cleanup_(close_pipep)
595 _malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) {
596 if (_unlikely_(b == 0 || a > ((size_t) -1) / b))
599 return malloc(a * b);
602 _alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_t b) {
603 if (_unlikely_(b == 0 || a > ((size_t) -1) / b))
606 return memdup(p, a * b);
609 bool filename_is_safe(const char *p) _pure_;
610 bool path_is_safe(const char *p) _pure_;
611 bool string_is_safe(const char *p) _pure_;
612 bool string_has_cc(const char *p) _pure_;
614 void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
615 int (*compar) (const void *, const void *, void *),
618 bool is_locale_utf8(void);
620 typedef enum DrawSpecialChar {
625 DRAW_TRIANGULAR_BULLET,
627 _DRAW_SPECIAL_CHAR_MAX
629 const char *draw_special_char(DrawSpecialChar ch);
631 char *strreplace(const char *text, const char *old_string, const char *new_string);
633 char *strip_tab_ansi(char **p, size_t *l);
635 int on_ac_power(void);
637 int search_and_fopen(const char *path, const char *mode, const char **search, FILE **_f);
638 int search_and_fopen_nulstr(const char *path, const char *mode, const char *search, FILE **_f);
640 #define FOREACH_LINE(line, f, on_error) \
642 if (!fgets(line, sizeof(line), f)) { \
649 #define FOREACH_DIRENT(de, d, on_error) \
650 for (errno = 0, de = readdir(d);; errno = 0, de = readdir(d)) \
656 } else if (ignore_file((de)->d_name)) \
660 static inline void *mempset(void *s, int c, size_t n) {
662 return (uint8_t*)s + n;
665 char *hexmem(const void *p, size_t l);
666 void *unhexmem(const char *p, size_t l);
668 char *strextend(char **x, ...) _sentinel_;
669 char *strrep(const char *s, unsigned n);
671 void* greedy_realloc(void **p, size_t *allocated, size_t need);
672 void* greedy_realloc0(void **p, size_t *allocated, size_t need);
673 #define GREEDY_REALLOC(array, allocated, need) \
674 greedy_realloc((void**) &(array), &(allocated), sizeof((array)[0]) * (need))
675 #define GREEDY_REALLOC0(array, allocated, need) \
676 greedy_realloc0((void**) &(array), &(allocated), sizeof((array)[0]) * (need))
678 static inline void _reset_errno_(int *saved_errno) {
679 errno = *saved_errno;
682 #define PROTECT_ERRNO _cleanup_(_reset_errno_) __attribute__((unused)) int _saved_errno_ = errno
684 struct _umask_struct_ {
689 static inline void _reset_umask_(struct _umask_struct_ *s) {
693 #define RUN_WITH_UMASK(mask) \
694 for (_cleanup_(_reset_umask_) struct _umask_struct_ _saved_umask_ = { umask(mask), false }; \
695 !_saved_umask_.quit ; \
696 _saved_umask_.quit = true)
698 static inline unsigned u64log2(uint64_t n) {
699 return (n > 1) ? __builtin_clzll(n) ^ 63U : 0;
702 static inline bool logind_running(void) {
703 return access("/run/systemd/seats/", F_OK) >= 0;
706 #define DECIMAL_STR_WIDTH(x) \
708 typeof(x) _x_ = (x); \
715 int unlink_noerrno(const char *path);
721 _new_ = alloca(_len_); \
722 (void *) memset(_new_, 0, _len_); \
725 #define strappenda(a, b) \
727 const char *_a_ = (a), *_b_ = (b); \
732 _c_ = alloca(_x_ + _y_ + 1); \
733 strcpy(stpcpy(_c_, _a_), _b_); \
737 #define procfs_file_alloca(pid, field) \
739 pid_t _pid_ = (pid); \
741 _r_ = alloca(sizeof("/proc/") -1 + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \
742 sprintf(_r_, "/proc/%lu/" field, (unsigned long) _pid_); \
746 struct _locale_struct_ {
747 locale_t saved_locale;
752 static inline void _reset_locale_(struct _locale_struct_ *s) {
754 if (s->saved_locale != (locale_t) 0)
755 uselocale(s->saved_locale);
756 if (s->new_locale != (locale_t) 0)
757 freelocale(s->new_locale);
760 #define RUN_WITH_LOCALE(mask, loc) \
761 for (_cleanup_(_reset_locale_) struct _locale_struct_ _saved_locale_ = { (locale_t) 0, (locale_t) 0, false }; \
763 if (!_saved_locale_.quit) { \
765 _saved_locale_.new_locale = newlocale((mask), (loc), (locale_t) 0); \
766 if (_saved_locale_.new_locale != (locale_t) 0) \
767 _saved_locale_.saved_locale = uselocale(_saved_locale_.new_locale); \
769 !_saved_locale_.quit; }) ; \
770 _saved_locale_.quit = true)
772 bool id128_is_valid(const char *s) _pure_;
773 void parse_user_at_host(char *arg, char **user, char **host);
775 int split_pair(const char *s, const char *sep, char **l, char **r);
777 int shall_restore_state(void);
780 * Normal qsort requires base to be nonnull. Here were require
781 * that only if nmemb > 0.
783 static inline void qsort_safe(void *base, size_t nmemb, size_t size,
784 int (*compar)(const void *, const void *)) {
787 qsort(base, nmemb, size, compar);
791 int proc_cmdline(char **ret);