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 *bus_path_escape(const char *s);
241 char *bus_path_unescape(const char *s);
243 char *ascii_strlower(char *path);
245 bool dirent_is_file(const struct dirent *de) _pure_;
246 bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) _pure_;
248 bool ignore_file(const char *filename) _pure_;
250 bool chars_intersect(const char *a, const char *b) _pure_;
252 int make_stdio(int fd);
253 int make_null_stdio(void);
254 int make_console_stdio(void);
256 unsigned long long random_ull(void);
257 unsigned random_u(void);
259 /* For basic lookup tables with strictly enumerated entries */
260 #define __DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \
261 scope const char *name##_to_string(type i) { \
262 if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \
264 return name##_table[i]; \
266 scope type name##_from_string(const char *s) { \
269 for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \
270 if (name##_table[i] && \
271 streq(name##_table[i], s)) \
275 struct __useless_struct_to_allow_trailing_semicolon__
277 #define DEFINE_STRING_TABLE_LOOKUP(name,type) __DEFINE_STRING_TABLE_LOOKUP(name,type,)
278 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) __DEFINE_STRING_TABLE_LOOKUP(name,type,static)
280 /* For string conversions where numbers are also acceptable */
281 #define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \
282 int name##_to_string_alloc(type i, char **str) { \
285 if (i < 0 || i > max) \
287 if (i < (type) ELEMENTSOF(name##_table)) { \
288 s = strdup(name##_table[i]); \
292 r = asprintf(&s, "%u", i); \
299 type name##_from_string(const char *s) { \
303 for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \
304 if (name##_table[i] && \
305 streq(name##_table[i], s)) \
307 if (safe_atou(s, &u) >= 0 && u <= max) \
311 struct __useless_struct_to_allow_trailing_semicolon__
313 int fd_nonblock(int fd, bool nonblock);
314 int fd_cloexec(int fd, bool cloexec);
316 int close_all_fds(const int except[], unsigned n_except);
318 bool fstype_is_network(const char *fstype);
322 int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl);
323 int ask(char *ret, const char *replies, const char *text, ...) _printf_attr_(3, 4);
325 int reset_terminal_fd(int fd, bool switch_to_text);
326 int reset_terminal(const char *name);
328 int open_terminal(const char *name, int mode);
329 int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocstty_eperm, usec_t timeout);
330 int release_terminal(void);
332 int flush_fd(int fd);
334 int ignore_signals(int sig, ...);
335 int default_signals(int sig, ...);
336 int sigaction_many(const struct sigaction *sa, ...);
338 int close_pipe(int p[]);
339 int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
341 ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll);
342 ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll);
344 bool is_device_path(const char *path);
346 int dir_is_empty(const char *path);
347 char* dirname_malloc(const char *path);
349 void rename_process(const char name[8]);
351 void sigset_add_many(sigset_t *ss, ...);
353 bool hostname_is_set(void);
355 char* gethostname_malloc(void);
356 char* getlogname_malloc(void);
357 char* getusername_malloc(void);
359 int getttyname_malloc(int fd, char **r);
360 int getttyname_harder(int fd, char **r);
362 int get_ctty_devnr(pid_t pid, dev_t *d);
363 int get_ctty(pid_t, dev_t *_devnr, char **r);
365 int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid);
366 int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid);
368 int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev);
369 int rm_rf_children_dangerous(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev);
370 int rm_rf(const char *path, bool only_dirs, bool delete_root, bool honour_sticky);
371 int rm_rf_dangerous(const char *path, bool only_dirs, bool delete_root, bool honour_sticky);
373 int pipe_eof(int fd);
375 cpu_set_t* cpu_set_malloc(unsigned *ncpus);
377 int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) _printf_attr_(4,0);
378 int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...) _printf_attr_(4,5);
379 int status_welcome(void);
381 int fd_columns(int fd);
382 unsigned columns(void);
383 int fd_lines(int fd);
384 unsigned lines(void);
385 void columns_lines_cache_reset(int _unused_ signum);
389 static inline const char *ansi_highlight(void) {
390 return on_tty() ? ANSI_HIGHLIGHT_ON : "";
393 static inline const char *ansi_highlight_red(void) {
394 return on_tty() ? ANSI_HIGHLIGHT_RED_ON : "";
397 static inline const char *ansi_highlight_green(void) {
398 return on_tty() ? ANSI_HIGHLIGHT_GREEN_ON : "";
401 static inline const char *ansi_highlight_off(void) {
402 return on_tty() ? ANSI_HIGHLIGHT_OFF : "";
405 int running_in_chroot(void);
407 char *ellipsize(const char *s, size_t length, unsigned percent);
409 char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent);
411 int touch(const char *path);
413 char *unquote(const char *s, const char *quotes);
414 char *normalize_env_assignment(const char *s);
416 int wait_for_terminate(pid_t pid, siginfo_t *status);
417 int wait_for_terminate_and_warn(const char *name, pid_t pid);
419 _noreturn_ void freeze(void);
421 bool null_or_empty(struct stat *st) _pure_;
422 int null_or_empty_path(const char *fn);
424 DIR *xopendirat(int dirfd, const char *name, int flags);
426 char *fstab_node_to_udev_node(const char *p);
428 char *resolve_dev_console(char **active);
429 bool tty_is_vc(const char *tty);
430 bool tty_is_vc_resolve(const char *tty);
431 bool tty_is_console(const char *tty) _pure_;
432 int vtnr_from_tty(const char *tty);
433 const char *default_term_for_tty(const char *tty);
435 void execute_directory(const char *directory, DIR *_d, char *argv[]);
437 int kill_and_sigcont(pid_t pid, int sig);
439 bool nulstr_contains(const char*nulstr, const char *needle);
441 bool plymouth_running(void);
443 bool hostname_is_valid(const char *s) _pure_;
444 char* hostname_cleanup(char *s, bool lowercase);
446 char* strshorten(char *s, size_t l);
448 int terminal_vhangup_fd(int fd);
449 int terminal_vhangup(const char *name);
451 int vt_disallocate(const char *name);
453 int copy_file(const char *from, const char *to, int flags);
455 int symlink_atomic(const char *from, const char *to);
457 int fchmod_umask(int fd, mode_t mode);
459 bool display_is_local(const char *display) _pure_;
460 int socket_from_display(const char *display, char **path);
462 int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell);
463 int get_group_creds(const char **groupname, gid_t *gid);
465 int in_gid(gid_t gid);
466 int in_group(const char *name);
468 char* uid_to_name(uid_t uid);
469 char* gid_to_name(gid_t gid);
471 int glob_exists(const char *path);
472 int glob_extend(char ***strv, const char *path);
474 int dirent_ensure_type(DIR *d, struct dirent *de);
476 int in_search_path(const char *path, char **search);
477 int get_files_in_directory(const char *path, char ***list);
479 char *strjoin(const char *x, ...) _sentinel_;
481 bool is_main_thread(void);
483 bool in_charset(const char *s, const char* charset) _pure_;
485 int block_get_whole_disk(dev_t d, dev_t *ret);
487 int file_is_priv_sticky(const char *p);
489 int strdup_or_null(const char *a, char **b);
491 #define NULSTR_FOREACH(i, l) \
492 for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)
494 #define NULSTR_FOREACH_PAIR(i, j, l) \
495 for ((i) = (l), (j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i))
497 int ioprio_class_to_string_alloc(int i, char **s);
498 int ioprio_class_from_string(const char *s);
500 const char *sigchld_code_to_string(int i) _const_;
501 int sigchld_code_from_string(const char *s) _pure_;
503 int log_facility_unshifted_to_string_alloc(int i, char **s);
504 int log_facility_unshifted_from_string(const char *s);
506 int log_level_to_string_alloc(int i, char **s);
507 int log_level_from_string(const char *s);
509 int sched_policy_to_string_alloc(int i, char **s);
510 int sched_policy_from_string(const char *s);
512 const char *rlimit_to_string(int i) _const_;
513 int rlimit_from_string(const char *s) _pure_;
515 int ip_tos_to_string_alloc(int i, char **s);
516 int ip_tos_from_string(const char *s);
518 const char *signal_to_string(int i) _const_;
519 int signal_from_string(const char *s) _pure_;
521 int signal_from_string_try_harder(const char *s);
523 extern int saved_argc;
524 extern char **saved_argv;
526 bool kexec_loaded(void);
528 int prot_from_flags(int flags) _const_;
530 char *format_bytes(char *buf, size_t l, off_t t);
532 int fd_wait_for_event(int fd, int event, usec_t timeout);
534 void* memdup(const void *p, size_t l) _alloc_(2);
536 int is_kernel_thread(pid_t pid);
538 int fd_inc_sndbuf(int fd, size_t n);
539 int fd_inc_rcvbuf(int fd, size_t n);
541 int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...);
543 int setrlimit_closest(int resource, const struct rlimit *rlim);
545 int getenv_for_pid(pid_t pid, const char *field, char **_value);
547 bool is_valid_documentation_url(const char *url) _pure_;
549 bool in_initrd(void);
551 void warn_melody(void);
553 int get_home_dir(char **ret);
555 static inline void freep(void *p) {
559 #define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \
560 static inline void func##p(type *p) { \
564 struct __useless_struct_to_allow_trailing_semicolon__
566 static inline void closep(int *fd) {
568 close_nointr_nofail(*fd);
571 static inline void umaskp(mode_t *u) {
575 DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, fclose);
576 DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose);
577 DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir);
578 DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
580 #define _cleanup_free_ _cleanup_(freep)
581 #define _cleanup_close_ _cleanup_(closep)
582 #define _cleanup_umask_ _cleanup_(umaskp)
583 #define _cleanup_globfree_ _cleanup_(globfree)
584 #define _cleanup_fclose_ _cleanup_(fclosep)
585 #define _cleanup_pclose_ _cleanup_(pclosep)
586 #define _cleanup_closedir_ _cleanup_(closedirp)
587 #define _cleanup_endmntent_ _cleanup_(endmntentp)
589 _malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) {
590 if (_unlikely_(b == 0 || a > ((size_t) -1) / b))
593 return malloc(a * b);
596 _alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_t b) {
597 if (_unlikely_(b == 0 || a > ((size_t) -1) / b))
600 return memdup(p, a * b);
603 bool filename_is_safe(const char *p) _pure_;
604 bool path_is_safe(const char *p) _pure_;
605 bool string_is_safe(const char *p) _pure_;
606 bool string_has_cc(const char *p) _pure_;
608 void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
609 int (*compar) (const void *, const void *, void *),
612 bool is_locale_utf8(void);
614 typedef enum DrawSpecialChar {
619 DRAW_TRIANGULAR_BULLET,
620 _DRAW_SPECIAL_CHAR_MAX
622 const char *draw_special_char(DrawSpecialChar ch);
624 char *strreplace(const char *text, const char *old_string, const char *new_string);
626 char *strip_tab_ansi(char **p, size_t *l);
628 int on_ac_power(void);
630 int search_and_fopen(const char *path, const char *mode, const char **search, FILE **_f);
631 int search_and_fopen_nulstr(const char *path, const char *mode, const char *search, FILE **_f);
632 int create_tmp_dir(char template[], char** dir_name);
634 #define FOREACH_LINE(line, f, on_error) \
636 if (!fgets(line, sizeof(line), f)) { \
643 #define FOREACH_DIRENT(de, d, on_error) \
644 for (errno = 0, de = readdir(d);; errno = 0, de = readdir(d)) \
650 } else if (ignore_file((de)->d_name)) \
654 static inline void *mempset(void *s, int c, size_t n) {
656 return (uint8_t*)s + n;
659 char *hexmem(const void *p, size_t l);
660 void *unhexmem(const char *p, size_t l);
662 char *strextend(char **x, ...) _sentinel_;
663 char *strrep(const char *s, unsigned n);
665 void* greedy_realloc(void **p, size_t *allocated, size_t need);
666 #define GREEDY_REALLOC(array, allocated, need) \
667 greedy_realloc((void**) &(array), &(allocated), sizeof((array)[0]) * (need))
669 static inline void _reset_errno_(int *saved_errno) {
670 errno = *saved_errno;
673 #define PROTECT_ERRNO _cleanup_(_reset_errno_) __attribute__((unused)) int _saved_errno_ = errno
675 struct _umask_struct_ {
680 static inline void _reset_umask_(struct _umask_struct_ *s) {
684 #define RUN_WITH_UMASK(mask) \
685 for (_cleanup_(_reset_umask_) struct _umask_struct_ _saved_umask_ = { umask(mask), false }; \
686 !_saved_umask_.quit ; \
687 _saved_umask_.quit = true)
689 static inline unsigned u64log2(uint64_t n) {
690 return (n > 1) ? __builtin_clzll(n) ^ 63U : 0;
693 static inline bool logind_running(void) {
694 return access("/run/systemd/seats/", F_OK) >= 0;
697 #define DECIMAL_STR_WIDTH(x) \
699 typeof(x) _x_ = (x); \
706 int unlink_noerrno(const char *path);
712 _new_ = alloca(_len_); \
713 (void *) memset(_new_, 0, _len_); \
716 #define strappenda(a, b) \
718 const char *_a_ = (a), *_b_ = (b); \
723 _c_ = alloca(_x_ + _y_ + 1); \
724 strcpy(stpcpy(_c_, _a_), _b_); \
728 #define procfs_file_alloca(pid, field) \
730 pid_t _pid_ = (pid); \
732 _r_ = alloca(sizeof("/proc/") -1 + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \
733 sprintf(_r_, "/proc/%lu/" field, (unsigned long) _pid_); \
737 struct _locale_struct_ {
738 locale_t saved_locale;
743 static inline void _reset_locale_(struct _locale_struct_ *s) {
745 if (s->saved_locale != (locale_t) 0)
746 uselocale(s->saved_locale);
747 if (s->new_locale != (locale_t) 0)
748 freelocale(s->new_locale);
751 #define RUN_WITH_LOCALE(mask, loc) \
752 for (_cleanup_(_reset_locale_) struct _locale_struct_ _saved_locale_ = { (locale_t) 0, (locale_t) 0, false }; \
754 if (!_saved_locale_.quit) { \
756 _saved_locale_.new_locale = newlocale((mask), (loc), (locale_t) 0); \
757 if (_saved_locale_.new_locale != (locale_t) 0) \
758 _saved_locale_.saved_locale = uselocale(_saved_locale_.new_locale); \
760 !_saved_locale_.quit; }) ; \
761 _saved_locale_.quit = true)
763 bool id128_is_valid(const char *s) _pure_;
764 void parse_user_at_host(char *arg, char **user, char **host);
766 int split_pair(const char *s, const char *sep, char **l, char **r);
769 * Normal qsort requires base to be nonnull. Here were require
770 * that only if nmemb > 0.
772 static inline void qsort_safe(void *base, size_t nmemb, size_t size,
773 int (*compar)(const void *, const void *)) {
776 qsort(base, nmemb, size, compar);