0c69794138
These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
130 lines
3.5 KiB
C
130 lines
3.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <errno.h>
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#include <getopt.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "id128-util.h"
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#include "log.h"
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#include "machine-id-setup.h"
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#include "path-util.h"
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#include "util.h"
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static char *arg_root = NULL;
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static bool arg_commit = false;
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static bool arg_print = false;
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static void help(void) {
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printf("%s [OPTIONS...]\n\n"
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"Initialize /etc/machine-id from a random source.\n\n"
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" -h --help Show this help\n"
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" --version Show package version\n"
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" --root=ROOT Filesystem root\n"
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" --commit Commit transient ID\n"
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" --print Print used machine ID\n"
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, program_invocation_short_name);
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}
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static int parse_argv(int argc, char *argv[]) {
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enum {
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ARG_VERSION = 0x100,
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ARG_ROOT,
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ARG_COMMIT,
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ARG_PRINT,
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};
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static const struct option options[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "version", no_argument, NULL, ARG_VERSION },
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{ "root", required_argument, NULL, ARG_ROOT },
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{ "commit", no_argument, NULL, ARG_COMMIT },
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{ "print", no_argument, NULL, ARG_PRINT },
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{}
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};
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int c, r;
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assert(argc >= 0);
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assert(argv);
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while ((c = getopt_long(argc, argv, "hqcv", options, NULL)) >= 0)
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switch (c) {
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case 'h':
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help();
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return 0;
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case ARG_VERSION:
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return version();
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case ARG_ROOT:
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r = parse_path_argument_and_warn(optarg, true, &arg_root);
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if (r < 0)
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return r;
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break;
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case ARG_COMMIT:
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arg_commit = true;
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break;
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case ARG_PRINT:
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arg_print = true;
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break;
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case '?':
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return -EINVAL;
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default:
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assert_not_reached("Unhandled option");
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}
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if (optind < argc) {
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log_error("Extraneous arguments");
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return -EINVAL;
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}
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return 1;
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}
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int main(int argc, char *argv[]) {
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char buf[SD_ID128_STRING_MAX];
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sd_id128_t id;
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int r;
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log_parse_environment();
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log_open();
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r = parse_argv(argc, argv);
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if (r <= 0)
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goto finish;
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if (arg_commit) {
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const char *etc_machine_id;
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r = machine_id_commit(arg_root);
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if (r < 0)
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goto finish;
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etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
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r = id128_read(etc_machine_id, ID128_PLAIN, &id);
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if (r < 0) {
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log_error_errno(r, "Failed to read machine ID back: %m");
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goto finish;
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}
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} else {
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r = machine_id_setup(arg_root, SD_ID128_NULL, &id);
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if (r < 0)
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goto finish;
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}
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if (arg_print)
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puts(sd_id128_to_string(id, buf));
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finish:
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free(arg_root);
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return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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