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-rw-r--r--src/boot/boot-check-no-failures.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/src/boot/boot-check-no-failures.c b/src/boot/boot-check-no-failures.c
new file mode 100644
index 0000000..3284a04
--- /dev/null
+++ b/src/boot/boot-check-no-failures.c
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "sd-bus.h"
+
+#include "alloc-util.h"
+#include "bus-error.h"
+#include "log.h"
+#include "main-func.h"
+#include "util.h"
+
+static int help(void) {
+
+ printf("%s [COMMAND] [OPTIONS...]\n"
+ "\n"
+ "Verify system operational state.\n\n"
+ " -h --help Show this help\n"
+ " --version Print version\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+ enum {
+ ARG_PATH = 0x100,
+ ARG_VERSION,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ {}
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_VERSION:
+ return version();
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ assert_not_reached("Unknown option");
+ }
+
+ return 1;
+}
+
+static int run(int argc, char *argv[]) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+ uint32_t n;
+ int r;
+
+ log_parse_environment();
+ log_open();
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ return r;
+
+ r = sd_bus_open_system(&bus);
+ if (r < 0)
+ return log_error_errno(r, "Failed to connect to system bus: %m");
+
+ r = sd_bus_get_property_trivial(
+ bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "NFailedUnits",
+ &error,
+ 'u',
+ &n);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get failed units counter: %s", bus_error_message(&error, r));
+
+ if (n > 0)
+ log_notice("Health check: %" PRIu32 " units have failed.", n);
+ else
+ log_info("Health check: no failed units.");
+
+ return n > 0;
+}
+
+DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);