+
+//usage:#define svok_trivial_usage
+//usage: "SERVICE_DIR"
+//usage:#define svok_full_usage "\n\n"
+//usage: "Check whether runsv supervisor is running.\n"
+//usage: "Exit code is 0 if it does, 100 if it does not,\n"
+//usage: "111 (with error message) if SERVICE_DIR does not exist."
+#if ENABLE_SVOK
+int svok_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int svok_main(int argc UNUSED_PARAM, char **argv)
+{
+ const char *dir = argv[1];
+
+ if (!dir)
+ bb_show_usage();
+
+ xfunc_error_retval = 111;
+
+ /*
+ * daemontools has no concept of "default service dir", runit does.
+ * Let's act as runit.
+ */
+ if (dir[0] != '/' && dir[0] != '.'
+ && !last_char_is(dir, '/')
+ ) {
+ xchdir(CONFIG_SV_DEFAULT_SERVICE_DIR);
+ }
+
+ xchdir(dir);
+ if (open("supervise/ok", O_WRONLY) < 0) {
+ if (errno == ENOENT || errno == ENXIO)
+ return 100;
+ bb_perror_msg_and_die("can't open '%s'", "supervise/ok");
+ }
+
+ return 0;
+}
+#endif