| /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| |
| #ifndef fooutilhfoo |
| #define fooutilhfoo |
| |
| /*** |
| This file is part of systemd. |
| |
| Copyright 2010 Lennart Poettering |
| |
| systemd is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| systemd is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with systemd; If not, see <http://www.gnu.org/licenses/>. |
| ***/ |
| |
| #include <inttypes.h> |
| #include <time.h> |
| #include <sys/time.h> |
| #include <stdbool.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <signal.h> |
| #include <sched.h> |
| #include <limits.h> |
| #include <sys/stat.h> |
| #include <dirent.h> |
| |
| #include "macro.h" |
| |
| typedef uint64_t usec_t; |
| |
| typedef struct dual_timestamp { |
| usec_t realtime; |
| usec_t monotonic; |
| } dual_timestamp; |
| |
| #define MSEC_PER_SEC 1000ULL |
| #define USEC_PER_SEC 1000000ULL |
| #define USEC_PER_MSEC 1000ULL |
| #define NSEC_PER_SEC 1000000000ULL |
| #define NSEC_PER_MSEC 1000000ULL |
| #define NSEC_PER_USEC 1000ULL |
| |
| #define USEC_PER_MINUTE (60ULL*USEC_PER_SEC) |
| #define USEC_PER_HOUR (60ULL*USEC_PER_MINUTE) |
| #define USEC_PER_DAY (24ULL*USEC_PER_HOUR) |
| #define USEC_PER_WEEK (7ULL*USEC_PER_DAY) |
| #define USEC_PER_MONTH (2629800ULL*USEC_PER_SEC) |
| #define USEC_PER_YEAR (31557600ULL*USEC_PER_SEC) |
| |
| /* What is interpreted as whitespace? */ |
| #define WHITESPACE " \t\n\r" |
| #define NEWLINE "\n\r" |
| #define QUOTES "\"\'" |
| #define COMMENTS "#;\n" |
| |
| #define FORMAT_TIMESTAMP_MAX 64 |
| #define FORMAT_TIMESTAMP_PRETTY_MAX 256 |
| #define FORMAT_TIMESPAN_MAX 64 |
| |
| #define ANSI_HIGHLIGHT_ON "\x1B[1;31m" |
| #define ANSI_HIGHLIGHT_GREEN_ON "\x1B[1;32m" |
| #define ANSI_HIGHLIGHT_OFF "\x1B[0m" |
| |
| usec_t now(clockid_t clock); |
| |
| dual_timestamp* dual_timestamp_get(dual_timestamp *ts); |
| |
| #define dual_timestamp_is_set(ts) ((ts)->realtime > 0) |
| |
| usec_t timespec_load(const struct timespec *ts); |
| struct timespec *timespec_store(struct timespec *ts, usec_t u); |
| |
| usec_t timeval_load(const struct timeval *tv); |
| struct timeval *timeval_store(struct timeval *tv, usec_t u); |
| |
| #define streq(a,b) (strcmp((a),(b)) == 0) |
| #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) |
| |
| bool streq_ptr(const char *a, const char *b); |
| |
| #define new(t, n) ((t*) malloc(sizeof(t)*(n))) |
| |
| #define new0(t, n) ((t*) calloc((n), sizeof(t))) |
| |
| #define malloc0(n) (calloc((n), 1)) |
| |
| static inline const char* yes_no(bool b) { |
| return b ? "yes" : "no"; |
| } |
| |
| 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 is_path_absolute(const char *p) { |
| return *p == '/'; |
| } |
| |
| bool endswith(const char *s, const char *postfix); |
| bool startswith(const char *s, const char *prefix); |
| bool startswith_no_case(const char *s, const char *prefix); |
| |
| bool first_word(const char *s, const char *word); |
| |
| int close_nointr(int fd); |
| void close_nointr_nofail(int fd); |
| void close_many(const int fds[], unsigned n_fd); |
| |
| int parse_boolean(const char *v); |
| int parse_usec(const char *t, usec_t *usec); |
| int parse_pid(const char *s, pid_t* ret_pid); |
| |
| 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); |
| |
| #if __WORDSIZE == 32 |
| 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); |
| } |
| |
| char *split(const char *c, size_t *l, const char *separator, char **state); |
| char *split_quoted(const char *c, size_t *l, char **state); |
| |
| #define FOREACH_WORD(word, length, s, state) \ |
| for ((state) = NULL, (word) = split((s), &(length), WHITESPACE, &(state)); (word); (word) = split((s), &(length), WHITESPACE, &(state))) |
| |
| #define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \ |
| for ((state) = NULL, (word) = split((s), &(length), (separator), &(state)); (word); (word) = split((s), &(length), (separator), &(state))) |
| |
| #define FOREACH_WORD_QUOTED(word, length, s, state) \ |
| for ((state) = NULL, (word) = split_quoted((s), &(length), &(state)); (word); (word) = split_quoted((s), &(length), &(state))) |
| |
| char **split_path_and_make_absolute(const char *p); |
| |
| pid_t get_parent_of_pid(pid_t pid, pid_t *ppid); |
| |
| int write_one_line_file(const char *fn, const char *line); |
| int read_one_line_file(const char *fn, char **line); |
| int read_full_file(const char *fn, char **contents); |
| |
| int parse_env_file(const char *fname, const char *separator, ...) _sentinel_; |
| |
| 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 readlink_malloc(const char *p, char **r); |
| int readlink_and_make_absolute(const char *p, char **r); |
| |
| char *file_name_from_path(const char *p); |
| bool is_path(const char *p); |
| |
| bool path_is_absolute(const char *p); |
| char *path_make_absolute(const char *p, const char *prefix); |
| char *path_make_absolute_cwd(const char *p); |
| |
| char **strv_path_make_absolute_cwd(char **l); |
| char **strv_path_canonicalize(char **l); |
| |
| int reset_all_signal_handlers(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 safe_mkdir(const char *path, mode_t mode, uid_t uid, gid_t gid); |
| int mkdir_parents(const char *path, mode_t mode); |
| int mkdir_p(const char *path, mode_t mode); |
| |
| int parent_of_path(const char *path, char **parent); |
| |
| int rmdir_parents(const char *path, const char *stop); |
| |
| int get_process_name(pid_t pid, char **name); |
| int get_process_cmdline(pid_t pid, size_t max_length, char **line); |
| |
| char hexchar(int x); |
| int unhexchar(char c); |
| char octchar(int x); |
| int unoctchar(char c); |
| char decchar(int x); |
| int undecchar(char c); |
| |
| char *cescape(const char *s); |
| char *cunescape(const char *s); |
| char *cunescape_length(const char *s, size_t length); |
| |
| char *xescape(const char *s, const char *bad); |
| |
| char *bus_path_escape(const char *s); |
| char *bus_path_unescape(const char *s); |
| |
| char *path_kill_slashes(char *path); |
| |
| bool path_startswith(const char *path, const char *prefix); |
| bool path_equal(const char *a, const char *b); |
| |
| char *ascii_strlower(char *path); |
| |
| bool ignore_file(const char *filename); |
| |
| bool chars_intersect(const char *a, const char *b); |
| |
| char *format_timestamp(char *buf, size_t l, usec_t t); |
| char *format_timestamp_pretty(char *buf, size_t l, usec_t t); |
| char *format_timespan(char *buf, size_t l, usec_t t); |
| |
| int make_stdio(int fd); |
| int make_null_stdio(void); |
| |
| bool is_clean_exit(int code, int status); |
| bool is_clean_exit_lsb(int code, int status); |
| |
| unsigned long long random_ull(void); |
| |
| #define DEFINE_STRING_TABLE_LOOKUP(name,type) \ |
| const char *name##_to_string(type i) { \ |
| if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \ |
| return NULL; \ |
| return name##_table[i]; \ |
| } \ |
| 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 < ELEMENTSOF(name##_table)) \ |
| 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, bool *need_nl); |
| int ask(char *ret, const char *replies, const char *text, ...); |
| |
| int reset_terminal(int fd); |
| int open_terminal(const char *name, int mode); |
| int acquire_terminal(const char *name, bool fail, bool force, bool ignore_tiocstty_eperm); |
| 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 close_pipe(int p[]); |
| |
| 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); |
| |
| int path_is_mount_point(const char *path); |
| |
| bool is_device_path(const char *path); |
| |
| int dir_is_empty(const char *path); |
| |
| void rename_process(const char name[8]); |
| |
| void sigset_add_many(sigset_t *ss, ...); |
| |
| char* gethostname_malloc(void); |
| char* getlogname_malloc(void); |
| int getttyname_malloc(char **r); |
| |
| int chmod_and_chown(const char *path, mode_t mode, uid_t uid, gid_t gid); |
| |
| int rm_rf(const char *path, bool only_dirs, bool delete_root); |
| |
| cpu_set_t* cpu_set_malloc(unsigned *ncpus); |
| |
| void status_vprintf(const char *format, va_list ap); |
| void status_printf(const char *format, ...); |
| void status_welcome(void); |
| |
| int columns(void); |
| |
| int running_in_chroot(void); |
| |
| char *ellipsize(const char *s, unsigned length, unsigned percent); |
| |
| int touch(const char *path); |
| |
| char *unquote(const char *s, const char *quotes); |
| |
| int wait_for_terminate(pid_t pid, siginfo_t *status); |
| int wait_for_terminate_and_warn(const char *name, pid_t pid); |
| |
| _noreturn_ void freeze(void); |
| |
| bool null_or_empty(struct stat *st); |
| |
| DIR *xopendirat(int dirfd, const char *name); |
| |
| void dual_timestamp_serialize(FILE *f, const char *name, dual_timestamp *t); |
| void dual_timestamp_deserialize(const char *value, dual_timestamp *t); |
| |
| char *fstab_node_to_udev_node(const char *p); |
| |
| void filter_environ(const char *prefix); |
| |
| const char *default_term_for_tty(const char *tty); |
| |
| #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)) |
| |
| const char *ioprio_class_to_string(int i); |
| int ioprio_class_from_string(const char *s); |
| |
| const char *sigchld_code_to_string(int i); |
| int sigchld_code_from_string(const char *s); |
| |
| const char *log_facility_to_string(int i); |
| int log_facility_from_string(const char *s); |
| |
| const char *log_level_to_string(int i); |
| int log_level_from_string(const char *s); |
| |
| const char *sched_policy_to_string(int i); |
| int sched_policy_from_string(const char *s); |
| |
| const char *rlimit_to_string(int i); |
| int rlimit_from_string(const char *s); |
| |
| const char *ip_tos_to_string(int i); |
| int ip_tos_from_string(const char *s); |
| |
| const char *signal_to_string(int i); |
| int signal_from_string(const char *s); |
| |
| int signal_from_string_try_harder(const char *s); |
| |
| #endif |