+
+bool chars_intersect(const char *a, const char *b) {
+ const char *p;
+
+ /* Returns true if any of the chars in a are in b. */
+ for (p = a; *p; p++)
+ if (strchr(b, *p))
+ return true;
+
+ return false;
+}
+
+char *format_timestamp(char *buf, size_t l, usec_t t) {
+ struct tm tm;
+ time_t sec;
+
+ assert(buf);
+ assert(l > 0);
+
+ if (t <= 0)
+ return NULL;
+
+ sec = (time_t) t / USEC_PER_SEC;
+
+ if (strftime(buf, l, "%a, %d %b %Y %H:%M:%S %z", localtime_r(&sec, &tm)) <= 0)
+ return NULL;
+
+ return buf;
+}
+
+bool fstype_is_network(const char *fstype) {
+ static const char * const table[] = {
+ "cifs",
+ "smbfs",
+ "ncpfs",
+ "nfs",
+ "nfs4"
+ };
+
+ unsigned i;
+
+ for (i = 0; i < ELEMENTSOF(table); i++)
+ if (streq(table[i], fstype))
+ return true;
+
+ return false;
+}
+
+int chvt(int vt) {
+ int fd, r = 0;
+
+ if ((fd = open("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC)) < 0)
+ return -errno;
+
+ if (vt < 0) {
+ int tiocl[2] = {
+ TIOCL_GETKMSGREDIRECT,
+ 0
+ };
+
+ if (ioctl(fd, TIOCLINUX, tiocl) < 0)
+ return -errno;
+
+ vt = tiocl[0] <= 0 ? 1 : tiocl[0];
+ }
+
+ if (ioctl(fd, VT_ACTIVATE, vt) < 0)
+ r = -errno;
+
+ close_nointr(r);
+ return r;
+}
+
+static const char *const ioprio_class_table[] = {
+ [IOPRIO_CLASS_NONE] = "none",
+ [IOPRIO_CLASS_RT] = "realtime",
+ [IOPRIO_CLASS_BE] = "best-effort",
+ [IOPRIO_CLASS_IDLE] = "idle"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(ioprio_class, int);
+
+static const char *const sigchld_code_table[] = {
+ [CLD_EXITED] = "exited",
+ [CLD_KILLED] = "killed",
+ [CLD_DUMPED] = "dumped",
+ [CLD_TRAPPED] = "trapped",
+ [CLD_STOPPED] = "stopped",
+ [CLD_CONTINUED] = "continued",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(sigchld_code, int);
+
+static const char *const log_facility_table[LOG_NFACILITIES] = {
+ [LOG_FAC(LOG_KERN)] = "kern",
+ [LOG_FAC(LOG_USER)] = "user",
+ [LOG_FAC(LOG_MAIL)] = "mail",
+ [LOG_FAC(LOG_DAEMON)] = "daemon",
+ [LOG_FAC(LOG_AUTH)] = "auth",
+ [LOG_FAC(LOG_SYSLOG)] = "syslog",
+ [LOG_FAC(LOG_LPR)] = "lpr",
+ [LOG_FAC(LOG_NEWS)] = "news",
+ [LOG_FAC(LOG_UUCP)] = "uucp",
+ [LOG_FAC(LOG_CRON)] = "cron",
+ [LOG_FAC(LOG_AUTHPRIV)] = "authpriv",
+ [LOG_FAC(LOG_FTP)] = "ftp",
+ [LOG_FAC(LOG_LOCAL0)] = "local0",
+ [LOG_FAC(LOG_LOCAL1)] = "local1",
+ [LOG_FAC(LOG_LOCAL2)] = "local2",
+ [LOG_FAC(LOG_LOCAL3)] = "local3",
+ [LOG_FAC(LOG_LOCAL4)] = "local4",
+ [LOG_FAC(LOG_LOCAL5)] = "local5",
+ [LOG_FAC(LOG_LOCAL6)] = "local6",
+ [LOG_FAC(LOG_LOCAL7)] = "local7"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(log_facility, int);
+
+static const char *const log_level_table[] = {
+ [LOG_EMERG] = "emerg",
+ [LOG_ALERT] = "alert",
+ [LOG_CRIT] = "crit",
+ [LOG_ERR] = "err",
+ [LOG_WARNING] = "warning",
+ [LOG_NOTICE] = "notice",
+ [LOG_INFO] = "info",
+ [LOG_DEBUG] = "debug"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(log_level, int);
+
+static const char* const sched_policy_table[] = {
+ [SCHED_OTHER] = "other",
+ [SCHED_BATCH] = "batch",
+ [SCHED_IDLE] = "idle",
+ [SCHED_FIFO] = "fifo",
+ [SCHED_RR] = "rr"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(sched_policy, int);
+
+static const char* const rlimit_table[] = {
+ [RLIMIT_CPU] = "LimitCPU",
+ [RLIMIT_FSIZE] = "LimitFSIZE",
+ [RLIMIT_DATA] = "LimitDATA",
+ [RLIMIT_STACK] = "LimitSTACK",
+ [RLIMIT_CORE] = "LimitCORE",
+ [RLIMIT_RSS] = "LimitRSS",
+ [RLIMIT_NOFILE] = "LimitNOFILE",
+ [RLIMIT_AS] = "LimitAS",
+ [RLIMIT_NPROC] = "LimitNPROC",
+ [RLIMIT_MEMLOCK] = "LimitMEMLOCK",
+ [RLIMIT_LOCKS] = "LimitLOCKS",
+ [RLIMIT_SIGPENDING] = "LimitSIGPENDING",
+ [RLIMIT_MSGQUEUE] = "LimitMSGQUEUE",
+ [RLIMIT_NICE] = "LimitNICE",
+ [RLIMIT_RTPRIO] = "LimitRTPRIO",
+ [RLIMIT_RTTIME] = "LimitRTTIME"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(rlimit, int);