static bool
lgtd_jsonrpc_type_null(const jsmntok_t *t, const char *json)
{
return memcmp(
&json[t->start], "null", LGTD_MIN(t->size, (int)sizeof("null"))
);
}
void
test_label(struct lgtd_lifx_bulb *bulb,
const char *bulb_label,
const char *label,
bool expected)
{
memcpy(bulb->state.label, bulb_label, LGTD_MIN(
strlen(bulb_label) + 1, LGTD_LIFX_LABEL_SIZE
));
bool rv = lgtd_lifx_bulb_has_label(bulb, label);
if (rv != expected) {
errx(
1, "bulb_has_label(%s, %s) -> %s (expected %s)",
bulb_label, label,
rv ? "true" : "false",
expected ? "true" : "false"
);
}
}
char *
lgtd_print_duration(uint64_t secs, char *buf, int bufsz)
{
assert(buf);
assert(bufsz > 0);
int days = secs / (60 * 60 * 24);
int minutes = secs / 60;
int hours = minutes / 60;
hours = hours % 24;
minutes = minutes % 60;
int i = 0;
if (days) {
int n = snprintf(buf, bufsz, "%d days ", days);
i = LGTD_MIN(i + n, bufsz);
}
snprintf(&buf[i], bufsz - i, "%02d:%02d", hours, minutes);
return buf;
}
int
main(int argc, char *argv[], char *envp[])
{
char progname[32] = { 0 };
memcpy(progname, argv[0], LGTD_MIN(sizeof(progname) - 1, strlen(argv[0])));
lgtd_daemon_setup_proctitle(argc, argv, envp);
lgtd_configure_libevent();
lgtd_setup_signal_handling();
static const struct option long_opts[] = {
{"listen", required_argument, NULL, 'l'},
{"command-pipe", required_argument, NULL, 'c'},
{"socket", required_argument, NULL, 's'},
{"foreground", no_argument, NULL, 'f'},
{"daemonize", no_argument, NULL, 'd'},
{"pidfile", required_argument, NULL, 'p'},
{"user", required_argument, NULL, 'u'},
{"group", required_argument, NULL, 'g'},
{"syslog", no_argument, NULL, 'S'},
{"syslog-facility", required_argument, NULL, 'F'},
{"syslog-ident", required_argument, NULL, 'I'},
{"no-timestamps", no_argument, NULL, 't'},
{"help", no_argument, NULL, 'h'},
{"verbosity", required_argument, NULL, 'v'},
{"version", no_argument, NULL, 'V'},
{"prefix", no_argument, NULL, 'P'},
{"rundir", no_argument, NULL, 'r'},
{NULL, 0, NULL, 0}
};
const char short_opts[] = "l:c:s:fdp:u:g:SF:I:thv:V";
if (argc == 1) {
lgtd_usage(progname);
}
for (int rv = getopt_long(argc, argv, short_opts, long_opts, NULL);
rv != -1;
rv = getopt_long(argc, argv, short_opts, long_opts, NULL)) {
switch (rv) {
case 'l':
(void)0;
char *sep = strrchr(optarg, ':');
if (!sep || !sep[1]) {
lgtd_usage(progname);
}
*sep = '\0';
if (!lgtd_listen_open(optarg, sep + 1)) {
exit(1);
}
break;
case 'c':
if (!lgtd_command_pipe_open(optarg)) {
exit(1);
}
break;
case 's':
if (!lgtd_listen_unix_open(optarg)) {
exit(1);
}
break;
case 'f':
lgtd_opts.foreground = true;
break;
case 'd':
lgtd_opts.foreground = false;
break;
case 'p':
lgtd_opts.pidfile = optarg;
break;
case 'u':
lgtd_opts.user = optarg;
break;
case 'g':
lgtd_opts.group = optarg;
break;
case 'S':
lgtd_opts.syslog = true;
break;
case 'F':
lgtd_opts.syslog_facility = lgtd_daemon_syslog_facilitytoi(optarg);
break;
case 'I':
lgtd_opts.syslog_ident = optarg;
break;
case 't':
lgtd_opts.log_timestamps = false;
break;
case 'h':
lgtd_usage(progname);
case 'v':
for (int i = 0;;) {
const char *verbose_levels[] = {
"debug", "info", "warning", "error"
};
if (!strcasecmp(optarg, verbose_levels[i])) {
lgtd_opts.verbosity = i;
break;
}
if (++i == LGTD_ARRAY_SIZE(verbose_levels)) {
lgtd_errx(1, "Unknown verbosity level: %s", optarg);
}
}
break;
case 'V':
printf("%s %s\n", progname, LGTD_VERSION);
lgtd_cleanup();
return 0;
case 'P':
printf(
"%s%s\n", LGTD_INSTALL_PREFIX, LGTD_INSTALL_PREFIX[
LGTD_ARRAY_SIZE(LGTD_INSTALL_PREFIX) - 1
] != '/' ? "/" : ""
);
return 0;
case 'r':
printf(
"%s%s\n", LGTD_RUNTIME_DIRECTORY, LGTD_RUNTIME_DIRECTORY[
LGTD_ARRAY_SIZE(LGTD_RUNTIME_DIRECTORY) - 1
] != '/' ? "/" : ""
);
return 0;
default:
lgtd_usage(progname);
}
}
argc -= optind;
argv += optind;
// Ideally we should parse the syslog relation options first and call that
// before anything can be logged:
lgtd_log_setup();
if (lgtd_opts.user) {
lgtd_daemon_set_user(lgtd_opts.user);
lgtd_daemon_set_group(lgtd_opts.group);
// create the pidfile before we drop privileges:
if (lgtd_opts.pidfile
&& !lgtd_daemon_write_pidfile(lgtd_opts.pidfile)) {
lgtd_warn("couldn't write pidfile at %s", lgtd_opts.pidfile);
}
lgtd_daemon_drop_privileges();
} else if (lgtd_opts.group) {
lgtd_errx(1, "please, specify an user with the -u option");
}
lgtd_daemon_die_if_running_as_root_unless_requested(lgtd_opts.user);
lgtd_lifx_wire_setup();
if (!lgtd_lifx_discovery_setup() || !lgtd_lifx_broadcast_setup()) {
lgtd_err(1, "can't setup lightsd");
}
if (!lgtd_opts.foreground) {
lgtd_info("forking into the background now...");
if (!lgtd_daemon_unleash()) {
lgtd_err(1, "can't fork to the background");
}
}
// update the pidfile after we've forked:
if (lgtd_opts.pidfile && !lgtd_daemon_write_pidfile(lgtd_opts.pidfile)) {
lgtd_warn("couldn't write pidfile at %s", lgtd_opts.pidfile);
}
lgtd_lifx_discovery_start();
// update at least once: so that if no bulbs are discovered we still get a
// clear status line.
lgtd_daemon_update_proctitle();
event_base_dispatch(lgtd_ev_base);
if (lgtd_last_signal_received) {
lgtd_info(
"received signal %d (%s), exiting...",
lgtd_last_signal_received, strsignal(lgtd_last_signal_received)
);
}
lgtd_cleanup();
return 0;
}
void
lgtd_jsonrpc_uint16_range_to_float_string(uint16_t encoded, int start, int stop,
char *out, int size)
{
assert(out);
assert(size > 1);
assert(start < stop);
if (size < 2) {
if (size) {
*out = '\0';
}
return;
}
int range;
range = stop * LGTD_JSONRPC_FLOAT_PREC - start * LGTD_JSONRPC_FLOAT_PREC;
int value = (uint64_t)encoded * (uint64_t)range / UINT16_MAX;
if (!value) {
out[0] = '0';
out[1] = '\0';
return;
}
int multiplier = 1;
while (value / (multiplier * 10)) {
multiplier *= 10;
}
int i = 0;
if (LGTD_JSONRPC_FLOAT_PREC / 10 > multiplier) {
out[i++] = '0';
if (i != size) {
out[i++] = '.';
}
for (int divider = 10;
LGTD_JSONRPC_FLOAT_PREC / divider > multiplier && i != size;
divider *= 10) {
out[i++] = '0';
}
}
do {
if (multiplier == LGTD_JSONRPC_FLOAT_PREC / 10) {
if (i == 0) {
out[i++] = '0';
}
if (i != size) {
out[i++] = '.';
}
}
if (i != size) {
out[i++] = '0' + value / multiplier;
}
value -= value / multiplier * multiplier;
multiplier /= 10;
} while ((value || multiplier >= LGTD_JSONRPC_FLOAT_PREC)
&& multiplier && i != size);
out[LGTD_MIN(i, size - 1)] = '\0';
assert(i <= size);
}
