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f876f537 LP |
1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
2 | ||
3 | #include <errno.h> | |
4 | #include <getopt.h> | |
5 | #include <stdio.h> | |
6 | #include <stdlib.h> | |
7 | ||
8 | #include "sd-bus.h" | |
9 | ||
10 | #include "alloc-util.h" | |
11 | #include "bus-error.h" | |
12 | #include "log.h" | |
5e332028 | 13 | #include "main-func.h" |
353b2baa LP |
14 | #include "pretty-print.h" |
15 | #include "terminal-util.h" | |
f876f537 LP |
16 | #include "util.h" |
17 | ||
18 | static int help(void) { | |
353b2baa LP |
19 | _cleanup_free_ char *link = NULL; |
20 | int r; | |
f876f537 | 21 | |
353b2baa LP |
22 | r = terminal_urlify_man("systemd-boot-check-no-failures.service", "8", &link); |
23 | if (r < 0) | |
24 | return log_oom(); | |
25 | ||
26 | printf("%s [OPTIONS...]\n" | |
27 | "\n%sVerify system operational state.%s\n\n" | |
f876f537 | 28 | " -h --help Show this help\n" |
353b2baa LP |
29 | " --version Print version\n" |
30 | "\nSee the %s for details.\n" | |
31 | , program_invocation_short_name | |
32 | , ansi_highlight() | |
33 | , ansi_normal() | |
34 | , link | |
35 | ); | |
f876f537 LP |
36 | |
37 | return 0; | |
38 | } | |
39 | ||
40 | static int parse_argv(int argc, char *argv[]) { | |
41 | enum { | |
42 | ARG_PATH = 0x100, | |
43 | ARG_VERSION, | |
44 | }; | |
45 | ||
46 | static const struct option options[] = { | |
47 | { "help", no_argument, NULL, 'h' }, | |
48 | { "version", no_argument, NULL, ARG_VERSION }, | |
49 | {} | |
50 | }; | |
51 | ||
52 | int c; | |
53 | ||
54 | assert(argc >= 0); | |
55 | assert(argv); | |
56 | ||
57 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) | |
58 | switch (c) { | |
59 | ||
60 | case 'h': | |
61 | help(); | |
62 | return 0; | |
63 | ||
64 | case ARG_VERSION: | |
65 | return version(); | |
66 | ||
67 | case '?': | |
68 | return -EINVAL; | |
69 | ||
70 | default: | |
71 | assert_not_reached("Unknown option"); | |
72 | } | |
73 | ||
74 | return 1; | |
75 | } | |
76 | ||
02434ea2 | 77 | static int run(int argc, char *argv[]) { |
f876f537 LP |
78 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
79 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
80 | uint32_t n; | |
81 | int r; | |
82 | ||
83 | log_parse_environment(); | |
84 | log_open(); | |
85 | ||
86 | r = parse_argv(argc, argv); | |
87 | if (r <= 0) | |
02434ea2 | 88 | return r; |
f876f537 LP |
89 | |
90 | r = sd_bus_open_system(&bus); | |
02434ea2 ZJS |
91 | if (r < 0) |
92 | return log_error_errno(r, "Failed to connect to system bus: %m"); | |
f876f537 LP |
93 | |
94 | r = sd_bus_get_property_trivial( | |
95 | bus, | |
96 | "org.freedesktop.systemd1", | |
97 | "/org/freedesktop/systemd1", | |
98 | "org.freedesktop.systemd1.Manager", | |
99 | "NFailedUnits", | |
100 | &error, | |
101 | 'u', | |
102 | &n); | |
02434ea2 ZJS |
103 | if (r < 0) |
104 | return log_error_errno(r, "Failed to get failed units counter: %s", bus_error_message(&error, r)); | |
f876f537 LP |
105 | |
106 | if (n > 0) | |
107 | log_notice("Health check: %" PRIu32 " units have failed.", n); | |
108 | else | |
109 | log_info("Health check: no failed units."); | |
110 | ||
02434ea2 | 111 | return n > 0; |
f876f537 | 112 | } |
02434ea2 ZJS |
113 | |
114 | DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run); |