]>
Commit | Line | Data |
---|---|---|
0d1d512f ZJS |
1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
2 | ||
3 | #include <getopt.h> | |
4 | #include <stdio.h> | |
5 | ||
6 | #include "alloc-util.h" | |
7 | #include "id128-print.h" | |
5e332028 | 8 | #include "main-func.h" |
294bf0c3 | 9 | #include "pretty-print.h" |
0d1d512f ZJS |
10 | #include "util.h" |
11 | #include "verbs.h" | |
12 | ||
13 | static bool arg_pretty = false; | |
14 | static sd_id128_t arg_app = {}; | |
15 | ||
16 | static int verb_new(int argc, char **argv, void *userdata) { | |
17 | return id128_print_new(arg_pretty); | |
18 | } | |
19 | ||
20 | static int verb_machine_id(int argc, char **argv, void *userdata) { | |
21 | sd_id128_t id; | |
22 | int r; | |
23 | ||
24 | if (sd_id128_is_null(arg_app)) | |
25 | r = sd_id128_get_machine(&id); | |
26 | else | |
27 | r = sd_id128_get_machine_app_specific(arg_app, &id); | |
28 | if (r < 0) | |
29 | return log_error_errno(r, "Failed to get %smachine-ID: %m", | |
30 | sd_id128_is_null(arg_app) ? "" : "app-specific "); | |
31 | ||
32 | return id128_pretty_print(id, arg_pretty); | |
33 | } | |
34 | ||
35 | static int verb_boot_id(int argc, char **argv, void *userdata) { | |
36 | sd_id128_t id; | |
37 | int r; | |
38 | ||
39 | if (sd_id128_is_null(arg_app)) | |
40 | r = sd_id128_get_boot(&id); | |
41 | else | |
42 | r = sd_id128_get_boot_app_specific(arg_app, &id); | |
43 | if (r < 0) | |
44 | return log_error_errno(r, "Failed to get %sboot-ID: %m", | |
45 | sd_id128_is_null(arg_app) ? "" : "app-specific "); | |
46 | ||
47 | return id128_pretty_print(id, arg_pretty); | |
48 | } | |
49 | ||
50 | static int verb_invocation_id(int argc, char **argv, void *userdata) { | |
51 | sd_id128_t id; | |
52 | int r; | |
53 | ||
54 | if (!sd_id128_is_null(arg_app)) | |
886cf317 ZJS |
55 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
56 | "Verb \"invocation-id\" cannot be combined with --app-specific=."); | |
0d1d512f ZJS |
57 | |
58 | r = sd_id128_get_invocation(&id); | |
59 | if (r < 0) | |
60 | return log_error_errno(r, "Failed to get invocation-ID: %m"); | |
61 | ||
62 | return id128_pretty_print(id, arg_pretty); | |
63 | } | |
64 | ||
65 | static int help(void) { | |
66 | _cleanup_free_ char *link = NULL; | |
67 | int r; | |
68 | ||
69 | r = terminal_urlify_man("systemd-id128", "1", &link); | |
70 | if (r < 0) | |
71 | return log_oom(); | |
72 | ||
73 | printf("%s [OPTIONS...] {COMMAND} ...\n\n" | |
74 | "Generate and print id128 strings.\n\n" | |
20a51f6a YW |
75 | " -h --help Show this help\n" |
76 | " -p --pretty Generate samples of program code\n" | |
77 | " -a --app-specific=ID Generate app-specific IDs\n" | |
78 | "\nCommands:\n" | |
0d1d512f ZJS |
79 | " new Generate a new id128 string\n" |
80 | " machine-id Print the ID of current machine\n" | |
81 | " boot-id Print the ID of current boot\n" | |
82 | " invocation-id Print the ID of current invocation\n" | |
83 | " help Show this help\n" | |
84 | "\nSee the %s for details.\n" | |
85 | , program_invocation_short_name | |
86 | , link | |
87 | ); | |
88 | ||
89 | return 0; | |
90 | } | |
91 | ||
92 | static int verb_help(int argc, char **argv, void *userdata) { | |
93 | return help(); | |
94 | } | |
95 | ||
96 | static int parse_argv(int argc, char *argv[]) { | |
97 | enum { | |
98 | ARG_VERSION = 0x100, | |
99 | }; | |
100 | ||
101 | static const struct option options[] = { | |
102 | { "help", no_argument, NULL, 'h' }, | |
103 | { "version", no_argument, NULL, ARG_VERSION }, | |
104 | { "app-specific", required_argument, NULL, 'a' }, | |
105 | {}, | |
106 | }; | |
107 | ||
108 | int c, r; | |
109 | ||
110 | assert(argc >= 0); | |
111 | assert(argv); | |
112 | ||
113 | while ((c = getopt_long(argc, argv, "hpa:", options, NULL)) >= 0) | |
114 | switch (c) { | |
115 | ||
116 | case 'h': | |
117 | return help(); | |
118 | ||
119 | case ARG_VERSION: | |
120 | return version(); | |
121 | ||
122 | case 'p': | |
123 | arg_pretty = true; | |
124 | break; | |
125 | ||
126 | case 'a': | |
127 | r = sd_id128_from_string(optarg, &arg_app); | |
128 | if (r < 0) | |
129 | return log_error_errno(r, "Failed to parse \"%s\" as application-ID: %m", optarg); | |
130 | break; | |
131 | ||
132 | case '?': | |
133 | return -EINVAL; | |
134 | ||
135 | default: | |
136 | assert_not_reached("Unhandled option"); | |
137 | } | |
138 | ||
139 | return 1; | |
140 | } | |
141 | ||
142 | static int id128_main(int argc, char *argv[]) { | |
143 | static const Verb verbs[] = { | |
144 | { "new", VERB_ANY, 1, 0, verb_new }, | |
145 | { "machine-id", VERB_ANY, 1, 0, verb_machine_id }, | |
146 | { "boot-id", VERB_ANY, 1, 0, verb_boot_id }, | |
147 | { "invocation-id", VERB_ANY, 1, 0, verb_invocation_id }, | |
148 | { "help", VERB_ANY, VERB_ANY, 0, verb_help }, | |
149 | {} | |
150 | }; | |
151 | ||
152 | return dispatch_verb(argc, argv, verbs, NULL); | |
153 | } | |
154 | ||
3c79f0b3 | 155 | static int run(int argc, char *argv[]) { |
0d1d512f ZJS |
156 | int r; |
157 | ||
158 | log_parse_environment(); | |
159 | log_open(); | |
160 | ||
161 | r = parse_argv(argc, argv); | |
162 | if (r <= 0) | |
3c79f0b3 | 163 | return r; |
0d1d512f | 164 | |
3c79f0b3 | 165 | return id128_main(argc, argv); |
0d1d512f | 166 | } |
3c79f0b3 ZJS |
167 | |
168 | DEFINE_MAIN_FUNCTION(run); |