assert(argc >= 1);
assert(argv);
- while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0)
+ /* "-" prevents getopt from permuting argv[] and moving the verb away
+ * from argv[1]. Our interface to initrd promises it'll be there. */
+ while ((c = getopt_long(argc, argv, "-", options, NULL)) >= 0)
switch (c) {
case ARG_LOG_LEVEL:
break;
+ case '\001':
+ if (!arg_verb)
+ arg_verb = optarg;
+ else
+ log_error("Excess arguments, ignoring");
+ break;
+
case '?':
return -EINVAL;
assert_not_reached("Unhandled option code.");
}
- if (optind >= argc) {
+ if (!arg_verb) {
log_error("Verb argument missing.");
return -EINVAL;
}
- arg_verb = argv[optind];
-
- if (optind + 1 < argc)
- log_error("Excess arguments, ignoring");
return 0;
}
static int switch_root_initramfs(void) {
- if (mount("/run/initramfs", "/run/initramfs", NULL, MS_BIND, NULL) < 0) {
- log_error("Failed to mount bind /run/initramfs on /run/initramfs: %m");
- return -errno;
- }
+ if (mount("/run/initramfs", "/run/initramfs", NULL, MS_BIND, NULL) < 0)
+ return log_error_errno(errno, "Failed to mount bind /run/initramfs on /run/initramfs: %m");
- if (mount(NULL, "/run/initramfs", NULL, MS_PRIVATE, NULL) < 0) {
- log_error("Failed to make /run/initramfs private mount: %m");
- return -errno;
- }
+ if (mount(NULL, "/run/initramfs", NULL, MS_PRIVATE, NULL) < 0)
+ return log_error_errno(errno, "Failed to make /run/initramfs private mount: %m");
/* switch_root with MS_BIND, because there might still be processes lurking around, which have open file desriptors.
* /run/initramfs/shutdown will take care of these.
goto error;
/* journald will die if not gone yet. The log target defaults
- * to console, but may have been changed by commandline options. */
+ * to console, but may have been changed by command line options. */
log_close_console(); /* force reopen of /dev/console */
log_open();
in_container = detect_container(NULL) > 0;
- need_umount = true;
+ need_umount = !in_container;
need_swapoff = !in_container;
need_loop_detach = !in_container;
need_dm_detach = !in_container;
} else if (r > 0)
log_info("Not all file systems unmounted, %d left.", r);
else
- log_error("Failed to unmount file systems: %s", strerror(-r));
+ log_error_errno(r, "Failed to unmount file systems: %m");
}
if (need_swapoff) {
} else if (r > 0)
log_info("Not all swaps deactivated, %d left.", r);
else
- log_error("Failed to deactivate swaps: %s", strerror(-r));
+ log_error_errno(r, "Failed to deactivate swaps: %m");
}
if (need_loop_detach) {
} else if (r > 0)
log_info("Not all loop devices detached, %d left.", r);
else
- log_error("Failed to detach loop devices: %s", strerror(-r));
+ log_error_errno(r, "Failed to detach loop devices: %m");
}
if (need_dm_detach) {
} else if (r > 0)
log_info("Not all DM devices detached, %d left.", r);
else
- log_error("Failed to detach DM devices: %s", strerror(-r));
+ log_error_errno(r, "Failed to detach DM devices: %m");
}
if (!need_umount && !need_swapoff && !need_loop_detach && !need_dm_detach) {
"Returning to initrd...");
execv("/shutdown", argv);
- log_error("Failed to execute shutdown binary: %m");
+ log_error_errno(errno, "Failed to execute shutdown binary: %m");
} else
- log_error("Failed to switch root to \"/run/initramfs\": %s", strerror(-r));
+ log_error_errno(r, "Failed to switch root to \"/run/initramfs\": %m");
}
pid = fork();
if (pid < 0)
- log_error("Failed to fork: %m");
+ log_error_errno(errno, "Failed to fork: %m");
else if (pid == 0) {
const char * const args[] = {
execv(args[0], (char * const *) args);
_exit(EXIT_FAILURE);
} else
- wait_for_terminate_and_warn("kexec", pid);
+ wait_for_terminate_and_warn("kexec", pid, true);
}
cmd = RB_AUTOBOOT;
exit(0);
}
- log_error("Failed to invoke reboot(): %m");
+ log_error_errno(errno, "Failed to invoke reboot(): %m");
r = -errno;
error:
- log_error("Critical error while doing system shutdown: %s", strerror(-r));
+ log_emergency_errno(r, "Critical error while doing system shutdown: %m");
freeze();
}