This source file includes following definitions.
- streq_ptr
- true_false
- strempty
- strnull
- strna
- isempty
- startswith
- startswith_no_case
- endswith
- safe_atoli
- safe_atolu
- safe_atoli
- safe_atou32
- safe_atoi32
- safe_atou64
- safe_atoi64
- hexchar
- random_u32
- ask_char
- ansi_highlight_red
- ansi_highlight_green
- ansi_highlight_yellow
- ansi_highlight_blue
- ansi_highlight_off
- null_or_empty
- sigchld_code_to_string
- closep
- umaskp
- close_pairp
- _alloc_
- _alloc_
- _alloc_
- filename_is_safe
- mempset
- strextend
- _reset_umask_
- u64log2
- u32ctz
- log2i
- logind_running
- _reset_locale_
- id128_is_valid
- unquote_many_words
#pragma once
#include <alloca.h>
#include <fcntl.h>
#include <inttypes.h>
#include <time.h>
#include <sys/time.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <sched.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <sys/resource.h>
#include <stddef.h>
#include <unistd.h>
#include <locale.h>
#include <mntent.h>
#include <sys/socket.h>
#if SIZEOF_PID_T == 4
# define PID_FMT "%" PRIu32
#elif SIZEOF_PID_T == 2
# define PID_FMT "%" PRIu16
#else
# error Unknown pid_t size
#endif
#if SIZEOF_UID_T == 4
# define UID_FMT "%" PRIu32
#elif SIZEOF_UID_T == 2
# define UID_FMT "%" PRIu16
#else
# error Unknown uid_t size
#endif
#if SIZEOF_GID_T == 4
# define GID_FMT "%" PRIu32
#elif SIZEOF_GID_T == 2
# define GID_FMT "%" PRIu16
#else
# error Unknown gid_t size
#endif
#if SIZEOF_TIME_T == 8
# define PRI_TIME PRIu64
#elif SIZEOF_TIME_T == 4
# define PRI_TIME PRIu32
#else
# error Unknown time_t size
#endif
#if SIZEOF_RLIM_T == 8
# define RLIM_FMT "%" PRIu64
#elif SIZEOF_RLIM_T == 4
# define RLIM_FMT "%" PRIu32
#else
# error Unknown rlim_t size
#endif
#include "macro.h"
#include "missing.h"
#include "time-util.h"
#define WHITESPACE " \t\n\r"
#define NEWLINE "\n\r"
#define QUOTES "\"\'"
#define COMMENTS "#;"
#define GLOB_CHARS "*?["
#define SHELL_NEED_ESCAPE "\"\\`$"
#define SHELL_NEED_QUOTES SHELL_NEED_ESCAPE GLOB_CHARS "'()<>|&;"
#define FORMAT_BYTES_MAX 8
#define ANSI_HIGHLIGHT_ON "\x1B[1;39m"
#define ANSI_RED_ON "\x1B[31m"
#define ANSI_HIGHLIGHT_RED_ON "\x1B[1;31m"
#define ANSI_GREEN_ON "\x1B[32m"
#define ANSI_HIGHLIGHT_GREEN_ON "\x1B[1;32m"
#define ANSI_HIGHLIGHT_YELLOW_ON "\x1B[1;33m"
#define ANSI_HIGHLIGHT_BLUE_ON "\x1B[1;34m"
#define ANSI_HIGHLIGHT_OFF "\x1B[0m"
#define ANSI_ERASE_TO_END_OF_LINE "\x1B[K"
size_t page_size(void);
#define PAGE_ALIGN(l) ALIGN_TO((l), page_size())
#define streq(a,b) (strcmp((a),(b)) == 0)
#define strneq(a, b, n) (strncmp((a), (b), (n)) == 0)
#define strcaseeq(a,b) (strcasecmp((a),(b)) == 0)
#define strncaseeq(a, b, n) (strncasecmp((a), (b), (n)) == 0)
bool streq_ptr(const char *a, const char *b) _pure_;
#define new(t, n) ((t*) malloc_multiply(sizeof(t), (n)))
#define new0(t, n) ((t*) calloc((n), sizeof(t)))
#define newa(t, n) ((t*) alloca(sizeof(t)*(n)))
#define newa0(t, n) ((t*) alloca0(sizeof(t)*(n)))
#define newdup(t, p, n) ((t*) memdup_multiply(p, sizeof(t), (n)))
#define malloc0(n) (calloc((n), 1))
static inline const char* yes_no(bool b) {
return b ? "yes" : "no";
}
static inline const char* true_false(bool b) {
return b ? "true" : "false";
}
static inline const char* strempty(const char *s) {
return s ? s : "";
}
static inline const char* strnull(const char *s) {
return s ? s : "(null)";
}
static inline const char *strna(const char *s) {
return s ? s : "n/a";
}
static inline bool isempty(const char *p) {
return !p || !p[0];
}
static inline char *startswith(const char *s, const char *prefix) {
size_t l;
l = strlen(prefix);
if (strncmp(s, prefix, l) == 0)
return (char*) s + l;
return NULL;
}
static inline char *startswith_no_case(const char *s, const char *prefix) {
size_t l;
l = strlen(prefix);
if (strncasecmp(s, prefix, l) == 0)
return (char*) s + l;
return NULL;
}
char *endswith(const char *s, const char *postfix) _pure_;
char *first_word(const char *s, const char *word) _pure_;
int close_nointr(int fd);
int safe_close(int fd);
void safe_close_pair(int p[]);
void close_many(const int fds[], unsigned n_fd);
int parse_size(const char *t, off_t base, off_t *size);
int parse_boolean(const char *v) _pure_;
int parse_pid(const char *s, pid_t* ret_pid);
int parse_uid(const char *s, uid_t* ret_uid);
#define parse_gid(s, ret_uid) parse_uid(s, ret_uid)
int safe_atou(const char *s, unsigned *ret_u);
int safe_atoi(const char *s, int *ret_i);
int safe_atollu(const char *s, unsigned long long *ret_u);
int safe_atolli(const char *s, long long int *ret_i);
int safe_atod(const char *s, double *ret_d);
int safe_atou8(const char *s, uint8_t *ret);
#if LONG_MAX == INT_MAX
static inline int safe_atolu(const char *s, unsigned long *ret_u) {
assert_cc(sizeof(unsigned long) == sizeof(unsigned));
return safe_atou(s, (unsigned*) ret_u);
}
static inline int safe_atoli(const char *s, long int *ret_u) {
assert_cc(sizeof(long int) == sizeof(int));
return safe_atoi(s, (int*) ret_u);
}
#else
static inline int safe_atolu(const char *s, unsigned long *ret_u) {
assert_cc(sizeof(unsigned long) == sizeof(unsigned long long));
return safe_atollu(s, (unsigned long long*) ret_u);
}
static inline int safe_atoli(const char *s, long int *ret_u) {
assert_cc(sizeof(long int) == sizeof(long long int));
return safe_atolli(s, (long long int*) ret_u);
}
#endif
static inline int safe_atou32(const char *s, uint32_t *ret_u) {
assert_cc(sizeof(uint32_t) == sizeof(unsigned));
return safe_atou(s, (unsigned*) ret_u);
}
static inline int safe_atoi32(const char *s, int32_t *ret_i) {
assert_cc(sizeof(int32_t) == sizeof(int));
return safe_atoi(s, (int*) ret_i);
}
static inline int safe_atou64(const char *s, uint64_t *ret_u) {
assert_cc(sizeof(uint64_t) == sizeof(unsigned long long));
return safe_atollu(s, (unsigned long long*) ret_u);
}
static inline int safe_atoi64(const char *s, int64_t *ret_i) {
assert_cc(sizeof(int64_t) == sizeof(long long int));
return safe_atolli(s, (long long int*) ret_i);
}
const char* split(const char **state, size_t *l, const char *separator, bool quoted);
#define FOREACH_WORD(word, length, s, state) \
_FOREACH_WORD(word, length, s, WHITESPACE, false, state)
#define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \
_FOREACH_WORD(word, length, s, separator, false, state)
#define FOREACH_WORD_QUOTED(word, length, s, state) \
_FOREACH_WORD(word, length, s, WHITESPACE, true, state)
#define _FOREACH_WORD(word, length, s, separator, quoted, state) \
for ((state) = (s), (word) = split(&(state), &(length), (separator), (quoted)); (word); (word) = split(&(state), &(length), (separator), (quoted)))
pid_t get_parent_of_pid(pid_t pid, pid_t *ppid);
int get_starttime_of_pid(pid_t pid, unsigned long long *st);
char *strappend(const char *s, const char *suffix);
char *strnappend(const char *s, const char *suffix, size_t length);
char *replace_env(const char *format, char **env);
char **replace_env_argv(char **argv, char **env);
int readlinkat_malloc(int fd, const char *p, char **ret);
int readlink_malloc(const char *p, char **r);
int readlink_and_make_absolute(const char *p, char **r);
int readlink_and_canonicalize(const char *p, char **r);
int reset_all_signal_handlers(void);
int reset_signal_mask(void);
char *strstrip(char *s);
char *delete_chars(char *s, const char *bad);
char *truncate_nl(char *s);
char *file_in_same_dir(const char *path, const char *filename);
int rmdir_parents(const char *path, const char *stop);
int get_process_state(pid_t pid);
int get_process_comm(pid_t pid, char **name);
int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line);
int get_process_exe(pid_t pid, char **name);
int get_process_uid(pid_t pid, uid_t *uid);
int get_process_gid(pid_t pid, gid_t *gid);
int get_process_capeff(pid_t pid, char **capeff);
char hexchar(int x) _const_;
int unhexchar(char c) _const_;
char octchar(int x) _const_;
int unoctchar(char c) _const_;
char decchar(int x) _const_;
int undecchar(char c) _const_;
char *cescape(const char *s);
char *cunescape(const char *s);
char *cunescape_length(const char *s, size_t length);
char *cunescape_length_with_prefix(const char *s, size_t length, const char *prefix);
char *xescape(const char *s, const char *bad);
char *ascii_strlower(char *path);
bool dirent_is_file(const struct dirent *de) _pure_;
bool dirent_is_file_with_suffix(const struct dirent *de, const char *suffix) _pure_;
bool ignore_file(const char *filename) _pure_;
bool chars_intersect(const char *a, const char *b) _pure_;
int make_stdio(int fd);
int make_null_stdio(void);
int make_console_stdio(void);
int dev_urandom(void *p, size_t n);
void random_bytes(void *p, size_t n);
static inline uint64_t random_u64(void) {
uint64_t u;
random_bytes(&u, sizeof(u));
return u;
}
static inline uint32_t random_u32(void) {
uint32_t u;
random_bytes(&u, sizeof(u));
return u;
}
#define __DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \
scope const char *name##_to_string(type i) { \
if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \
return NULL; \
return name##_table[i]; \
} \
scope type name##_from_string(const char *s) { \
type i; \
if (!s) \
return (type) -1; \
for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \
if (name##_table[i] && \
streq(name##_table[i], s)) \
return i; \
return (type) -1; \
} \
struct __useless_struct_to_allow_trailing_semicolon__
#define DEFINE_STRING_TABLE_LOOKUP(name,type) __DEFINE_STRING_TABLE_LOOKUP(name,type,)
#define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) __DEFINE_STRING_TABLE_LOOKUP(name,type,static)
#define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \
int name##_to_string_alloc(type i, char **str) { \
char *s; \
int r; \
if (i < 0 || i > max) \
return -ERANGE; \
if (i < (type) ELEMENTSOF(name##_table)) { \
s = strdup(name##_table[i]); \
if (!s) \
return log_oom(); \
} else { \
r = asprintf(&s, "%u", i); \
if (r < 0) \
return log_oom(); \
} \
*str = s; \
return 0; \
} \
type name##_from_string(const char *s) { \
type i; \
unsigned u = 0; \
assert(s); \
for (i = 0; i < (type)ELEMENTSOF(name##_table); i++) \
if (name##_table[i] && \
streq(name##_table[i], s)) \
return i; \
if (safe_atou(s, &u) >= 0 && u <= max) \
return (type) u; \
return (type) -1; \
} \
struct __useless_struct_to_allow_trailing_semicolon__
int fd_nonblock(int fd, bool nonblock);
int fd_cloexec(int fd, bool cloexec);
int close_all_fds(const int except[], unsigned n_except);
bool fstype_is_network(const char *fstype);
int chvt(int vt);
int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl);
int ask_char(char *ret, const char *replies, const char *text, ...) _printf_(3, 4);
int ask_string(char **ret, const char *text, ...) _printf_(2, 3);
int reset_terminal_fd(int fd, bool switch_to_text);
int reset_terminal(const char *name);
int open_terminal(const char *name, int mode);
int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocstty_eperm, usec_t timeout);
int release_terminal(void);
int flush_fd(int fd);
int ignore_signals(int sig, ...);
int default_signals(int sig, ...);
int sigaction_many(const struct sigaction *sa, ...);
int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll);
ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll);
bool is_device_path(const char *path);
int dir_is_empty(const char *path);
char* dirname_malloc(const char *path);
void rename_process(const char name[8]);
void sigset_add_many(sigset_t *ss, ...);
int sigprocmask_many(int how, ...);
bool hostname_is_set(void);
char* lookup_uid(uid_t uid);
char* gethostname_malloc(void);
char* getlogname_malloc(void);
char* getusername_malloc(void);
int getttyname_malloc(int fd, char **r);
int getttyname_harder(int fd, char **r);
int get_ctty_devnr(pid_t pid, dev_t *d);
int get_ctty(pid_t, dev_t *_devnr, char **r);
int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid);
int fchmod_and_fchown(int fd, mode_t mode, uid_t uid, gid_t gid);
int rm_rf_children(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev);
int rm_rf_children_dangerous(int fd, bool only_dirs, bool honour_sticky, struct stat *root_dev);
int rm_rf(const char *path, bool only_dirs, bool delete_root, bool honour_sticky);
int rm_rf_dangerous(const char *path, bool only_dirs, bool delete_root, bool honour_sticky);
int pipe_eof(int fd);
cpu_set_t* cpu_set_malloc(unsigned *ncpus);
int status_vprintf(const char *status, bool ellipse, bool ephemeral, const char *format, va_list ap) _printf_(4,0);
int status_printf(const char *status, bool ellipse, bool ephemeral, const char *format, ...) _printf_(4,5);
int fd_columns(int fd);
unsigned columns(void);
int fd_lines(int fd);
unsigned lines(void);
void columns_lines_cache_reset(int _unused_ signum);
bool on_tty(void);
static inline const char *ansi_highlight(void) {
return on_tty() ? ANSI_HIGHLIGHT_ON : "";
}
static inline const char *ansi_highlight_red(void) {
return on_tty() ? ANSI_HIGHLIGHT_RED_ON : "";
}
static inline const char *ansi_highlight_green(void) {
return on_tty() ? ANSI_HIGHLIGHT_GREEN_ON : "";
}
static inline const char *ansi_highlight_yellow(void) {
return on_tty() ? ANSI_HIGHLIGHT_YELLOW_ON : "";
}
static inline const char *ansi_highlight_blue(void) {
return on_tty() ? ANSI_HIGHLIGHT_BLUE_ON : "";
}
static inline const char *ansi_highlight_off(void) {
return on_tty() ? ANSI_HIGHLIGHT_OFF : "";
}
int files_same(const char *filea, const char *fileb);
int running_in_chroot(void);
char *ellipsize(const char *s, size_t length, unsigned percent);
char *ellipsize_mem(const char *s, size_t old_length, size_t new_length, unsigned percent);
int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode);
int touch(const char *path);
char *unquote(const char *s, const char *quotes);
char *normalize_env_assignment(const char *s);
int wait_for_terminate(pid_t pid, siginfo_t *status);
int wait_for_terminate_and_warn(const char *name, pid_t pid, bool check_exit_code);
noreturn void freeze(void);
bool null_or_empty(struct stat *st) _pure_;
int null_or_empty_path(const char *fn);
int null_or_empty_fd(int fd);
DIR *xopendirat(int dirfd, const char *name, int flags);
char *fstab_node_to_udev_node(const char *p);
char *resolve_dev_console(char **active);
bool tty_is_vc(const char *tty);
bool tty_is_vc_resolve(const char *tty);
bool tty_is_console(const char *tty) _pure_;
int vtnr_from_tty(const char *tty);
const char *default_term_for_tty(const char *tty);
void execute_directory(const char *directory, DIR *_d, usec_t timeout, char *argv[]);
int kill_and_sigcont(pid_t pid, int sig);
bool nulstr_contains(const char*nulstr, const char *needle);
bool plymouth_running(void);
bool hostname_is_valid(const char *s) _pure_;
char* hostname_cleanup(char *s, bool lowercase);
bool machine_name_is_valid(const char *s) _pure_;
char* strshorten(char *s, size_t l);
int terminal_vhangup_fd(int fd);
int terminal_vhangup(const char *name);
int vt_disallocate(const char *name);
int symlink_atomic(const char *from, const char *to);
int mknod_atomic(const char *path, mode_t mode, dev_t dev);
int mkfifo_atomic(const char *path, mode_t mode);
int fchmod_umask(int fd, mode_t mode);
bool display_is_local(const char *display) _pure_;
int socket_from_display(const char *display, char **path);
int get_user_creds(const char **username, uid_t *uid, gid_t *gid, const char **home, const char **shell);
int get_group_creds(const char **groupname, gid_t *gid);
int in_gid(gid_t gid);
int in_group(const char *name);
char* uid_to_name(uid_t uid);
char* gid_to_name(gid_t gid);
int glob_exists(const char *path);
int glob_extend(char ***strv, const char *path);
int dirent_ensure_type(DIR *d, struct dirent *de);
int get_files_in_directory(const char *path, char ***list);
char *strjoin(const char *x, ...) _sentinel_;
bool is_main_thread(void);
static inline bool _pure_ in_charset(const char *s, const char* charset) {
assert(s);
assert(charset);
return s[strspn(s, charset)] == '\0';
}
int block_get_whole_disk(dev_t d, dev_t *ret);
int file_is_priv_sticky(const char *p);
#define NULSTR_FOREACH(i, l) \
for ((i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)
#define NULSTR_FOREACH_PAIR(i, j, l) \
for ((i) = (l), (j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i))
int ioprio_class_to_string_alloc(int i, char **s);
int ioprio_class_from_string(const char *s);
const char *sigchld_code_to_string(int i) _const_;
int sigchld_code_from_string(const char *s) _pure_;
int log_facility_unshifted_to_string_alloc(int i, char **s);
int log_facility_unshifted_from_string(const char *s);
int log_level_to_string_alloc(int i, char **s);
int log_level_from_string(const char *s);
int sched_policy_to_string_alloc(int i, char **s);
int sched_policy_from_string(const char *s);
const char *rlimit_to_string(int i) _const_;
int rlimit_from_string(const char *s) _pure_;
int ip_tos_to_string_alloc(int i, char **s);
int ip_tos_from_string(const char *s);
const char *signal_to_string(int i) _const_;
int signal_from_string(const char *s) _pure_;
int signal_from_string_try_harder(const char *s);
extern int saved_argc;
extern char **saved_argv;
bool kexec_loaded(void);
int prot_from_flags(int flags) _const_;
char *format_bytes(char *buf, size_t l, off_t t);
int fd_wait_for_event(int fd, int event, usec_t timeout);
void* memdup(const void *p, size_t l) _alloc_(2);
int is_kernel_thread(pid_t pid);
int fd_inc_sndbuf(int fd, size_t n);
int fd_inc_rcvbuf(int fd, size_t n);
int fork_agent(pid_t *pid, const int except[], unsigned n_except, const char *path, ...);
int setrlimit_closest(int resource, const struct rlimit *rlim);
int getenv_for_pid(pid_t pid, const char *field, char **_value);
bool is_valid_documentation_url(const char *url) _pure_;
bool in_initrd(void);
void warn_melody(void);
int get_home_dir(char **ret);
int get_shell(char **_ret);
static inline void freep(void *p) {
free(*(void**) p);
}
#define DEFINE_TRIVIAL_CLEANUP_FUNC(type, func) \
static inline void func##p(type *p) { \
if (*p) \
func(*p); \
} \
struct __useless_struct_to_allow_trailing_semicolon__
static inline void closep(int *fd) {
safe_close(*fd);
}
static inline void umaskp(mode_t *u) {
umask(*u);
}
static inline void close_pairp(int (*p)[2]) {
safe_close_pair(*p);
}
DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, fclose);
DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose);
DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir);
DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, endmntent);
#define _cleanup_free_ _cleanup_(freep)
#define _cleanup_close_ _cleanup_(closep)
#define _cleanup_umask_ _cleanup_(umaskp)
#define _cleanup_globfree_ _cleanup_(globfree)
#define _cleanup_fclose_ _cleanup_(fclosep)
#define _cleanup_pclose_ _cleanup_(pclosep)
#define _cleanup_closedir_ _cleanup_(closedirp)
#define _cleanup_endmntent_ _cleanup_(endmntentp)
#define _cleanup_close_pair_ _cleanup_(close_pairp)
_malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) {
if (_unlikely_(b != 0 && a > ((size_t) -1) / b))
return NULL;
return malloc(a * b);
}
_alloc_(2, 3) static inline void *realloc_multiply(void *p, size_t a, size_t b) {
if (_unlikely_(b != 0 && a > ((size_t) -1) / b))
return NULL;
return realloc(p, a * b);
}
_alloc_(2, 3) static inline void *memdup_multiply(const void *p, size_t a, size_t b) {
if (_unlikely_(b != 0 && a > ((size_t) -1) / b))
return NULL;
return memdup(p, a * b);
}
bool filename_is_safe(const char *p) _pure_;
bool path_is_safe(const char *p) _pure_;
bool string_is_safe(const char *p) _pure_;
bool string_has_cc(const char *p, const char *ok) _pure_;
_pure_ static inline bool string_is_glob(const char *p) {
return !!strpbrk(p, GLOB_CHARS);
}
void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
int (*compar) (const void *, const void *, void *),
void *arg);
bool is_locale_utf8(void);
typedef enum DrawSpecialChar {
DRAW_TREE_VERTICAL,
DRAW_TREE_BRANCH,
DRAW_TREE_RIGHT,
DRAW_TREE_SPACE,
DRAW_TRIANGULAR_BULLET,
DRAW_BLACK_CIRCLE,
DRAW_ARROW,
DRAW_DASH,
_DRAW_SPECIAL_CHAR_MAX
} DrawSpecialChar;
const char *draw_special_char(DrawSpecialChar ch);
char *strreplace(const char *text, const char *old_string, const char *new_string);
char *strip_tab_ansi(char **p, size_t *l);
int on_ac_power(void);
int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f);
int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f);
#define FOREACH_LINE(line, f, on_error) \
for (;;) \
if (!fgets(line, sizeof(line), f)) { \
if (ferror(f)) { \
on_error; \
} \
break; \
} else
#define FOREACH_DIRENT(de, d, on_error) \
for (errno = 0, de = readdir(d);; errno = 0, de = readdir(d)) \
if (!de) { \
if (errno > 0) { \
on_error; \
} \
break; \
} else if (ignore_file((de)->d_name)) \
continue; \
else
static inline void *mempset(void *s, int c, size_t n) {
memset(s, c, n);
return (uint8_t*)s + n;
}
char *hexmem(const void *p, size_t l);
void *unhexmem(const char *p, size_t l);
char *strextend(char **x, ...) _sentinel_;
char *strrep(const char *s, unsigned n);
void* greedy_realloc(void **p, size_t *allocated, size_t need, size_t size);
void* greedy_realloc0(void **p, size_t *allocated, size_t need, size_t size);
#define GREEDY_REALLOC(array, allocated, need) \
greedy_realloc((void**) &(array), &(allocated), (need), sizeof((array)[0]))
#define GREEDY_REALLOC0(array, allocated, need) \
greedy_realloc0((void**) &(array), &(allocated), (need), sizeof((array)[0]))
static inline void _reset_errno_(int *saved_errno) {
errno = *saved_errno;
}
#define PROTECT_ERRNO _cleanup_(_reset_errno_) __attribute__((unused)) int _saved_errno_ = errno
struct _umask_struct_ {
mode_t mask;
bool quit;
};
static inline void _reset_umask_(struct _umask_struct_ *s) {
umask(s->mask);
};
#define RUN_WITH_UMASK(mask) \
for (_cleanup_(_reset_umask_) struct _umask_struct_ _saved_umask_ = { umask(mask), false }; \
!_saved_umask_.quit ; \
_saved_umask_.quit = true)
static inline unsigned u64log2(uint64_t n) {
#if __SIZEOF_LONG_LONG__ == 8
return (n > 1) ? (unsigned) __builtin_clzll(n) ^ 63U : 0;
#else
#error "Wut?"
#endif
}
static inline unsigned u32ctz(uint32_t n) {
#if __SIZEOF_INT__ == 4
return __builtin_ctz(n);
#else
#error "Wut?"
#endif
}
static inline int log2i(int x) {
assert(x > 0);
return __SIZEOF_INT__ * 8 - __builtin_clz(x) - 1;
}
static inline bool logind_running(void) {
return access("/run/systemd/seats/", F_OK) >= 0;
}
#define DECIMAL_STR_WIDTH(x) \
({ \
typeof(x) _x_ = (x); \
unsigned ans = 1; \
while (_x_ /= 10) \
ans++; \
ans; \
})
int unlink_noerrno(const char *path);
#define alloca0(n) \
({ \
char *_new_; \
size_t _len_ = n; \
_new_ = alloca(_len_); \
(void *) memset(_new_, 0, _len_); \
})
#define alloca_align(size, align) \
({ \
void *_ptr_; \
size_t _mask_ = (align) - 1; \
_ptr_ = alloca((size) + _mask_); \
(void*)(((uintptr_t)_ptr_ + _mask_) & ~_mask_); \
})
#define alloca0_align(size, align) \
({ \
void *_new_; \
size_t _size_ = (size); \
_new_ = alloca_align(_size_, (align)); \
(void*)memset(_new_, 0, _size_); \
})
#define strappenda(a, ...) \
({ \
int _len = strlen(a); \
unsigned _i; \
char *_d_, *_p_; \
const char *_appendees_[] = { __VA_ARGS__ }; \
for (_i = 0; _i < ELEMENTSOF(_appendees_); _i++) \
_len += strlen(_appendees_[_i]); \
_d_ = alloca(_len + 1); \
_p_ = stpcpy(_d_, a); \
for (_i = 0; _i < ELEMENTSOF(_appendees_); _i++) \
_p_ = stpcpy(_p_, _appendees_[_i]); \
_d_; \
})
#define procfs_file_alloca(pid, field) \
({ \
pid_t _pid_ = (pid); \
const char *_r_; \
if (_pid_ == 0) { \
_r_ = ("/proc/self/" field); \
} else { \
_r_ = alloca(strlen("/proc/") + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \
sprintf((char*) _r_, "/proc/"PID_FMT"/" field, _pid_); \
} \
_r_; \
})
struct _locale_struct_ {
locale_t saved_locale;
locale_t new_locale;
bool quit;
};
static inline void _reset_locale_(struct _locale_struct_ *s) {
PROTECT_ERRNO;
if (s->saved_locale != (locale_t) 0)
uselocale(s->saved_locale);
if (s->new_locale != (locale_t) 0)
freelocale(s->new_locale);
}
#define RUN_WITH_LOCALE(mask, loc) \
for (_cleanup_(_reset_locale_) struct _locale_struct_ _saved_locale_ = { (locale_t) 0, (locale_t) 0, false }; \
({ \
if (!_saved_locale_.quit) { \
PROTECT_ERRNO; \
_saved_locale_.new_locale = newlocale((mask), (loc), (locale_t) 0); \
if (_saved_locale_.new_locale != (locale_t) 0) \
_saved_locale_.saved_locale = uselocale(_saved_locale_.new_locale); \
} \
!_saved_locale_.quit; }) ; \
_saved_locale_.quit = true)
bool id128_is_valid(const char *s) _pure_;
int split_pair(const char *s, const char *sep, char **l, char **r);
int shall_restore_state(void);
static inline void qsort_safe(void *base, size_t nmemb, size_t size,
int (*compar)(const void *, const void *)) {
if (nmemb) {
assert(base);
qsort(base, nmemb, size, compar);
}
}
int proc_cmdline(char **ret);
int parse_proc_cmdline(int (*parse_word)(const char *key, const char *value));
int container_get_leader(const char *machine, pid_t *pid);
int namespace_open(pid_t pid, int *pidns_fd, int *mntns_fd, int *netns_fd, int *root_fd);
int namespace_enter(int pidns_fd, int mntns_fd, int netns_fd, int root_fd);
bool pid_is_alive(pid_t pid);
bool pid_is_unwaited(pid_t pid);
int getpeercred(int fd, struct ucred *ucred);
int getpeersec(int fd, char **ret);
int writev_safe(int fd, const struct iovec *w, int j);
int mkostemp_safe(char *pattern, int flags);
int open_tmpfile(const char *path, int flags);
int fd_warn_permissions(const char *path, int fd);
unsigned long personality_from_string(const char *p);
const char *personality_to_string(unsigned long);
uint64_t physical_memory(void);
void hexdump(FILE *f, const void *p, size_t s);
union file_handle_union {
struct file_handle handle;
char padding[sizeof(struct file_handle) + MAX_HANDLE_SZ];
};
int update_reboot_param_file(const char *param);
int umount_recursive(const char *target, int flags);
int bind_remount_recursive(const char *prefix, bool ro);
int fflush_and_check(FILE *f);
char *tempfn_xxxxxx(const char *p);
char *tempfn_random(const char *p);
bool is_localhost(const char *hostname);
int take_password_lock(const char *root);
int is_symlink(const char *path);
int is_dir(const char *path, bool follow);
int unquote_first_word(const char **p, char **ret);
int unquote_many_words(const char **p, ...) _sentinel_;
int free_and_strdup(char **p, const char *s);
int sethostname_idempotent(const char *s);
#define RLIMIT_MAKE_CONST(lim) ((struct rlimit) { lim, lim })
#define laccess(path, mode) faccessat(AT_FDCWD, (path), (mode), AT_SYMLINK_NOFOLLOW)