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https://github.com/systemd/systemd
synced 2024-10-15 12:34:37 +00:00
machine-id-setup: add new --print switch
If specified we'll simply output the used machine ID.
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parent
4b1afed01f
commit
487ddeb8bc
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@ -151,6 +151,12 @@
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early boot service.</para></listitem>
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early boot service.</para></listitem>
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</varlistentry>
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</varlistentry>
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<varlistentry>
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<term><option>--print</option></term>
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<listitem><para>Print the machine ID generated or commited after the operation is complete.</para></listitem>
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</varlistentry>
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<xi:include href="standard-options.xml" xpointer="help" />
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<xi:include href="standard-options.xml" xpointer="help" />
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<xi:include href="standard-options.xml" xpointer="version" />
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<xi:include href="standard-options.xml" xpointer="version" />
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</variablelist>
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</variablelist>
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@ -29,6 +29,7 @@
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static char *arg_root = NULL;
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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_commit = false;
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static bool arg_print = false;
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static void help(void) {
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static void help(void) {
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printf("%s [OPTIONS...]\n\n"
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printf("%s [OPTIONS...]\n\n"
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@ -37,6 +38,7 @@ static void help(void) {
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" --version Show package version\n"
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" --version Show package version\n"
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" --root=ROOT Filesystem root\n"
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" --root=ROOT Filesystem root\n"
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" --commit Commit transient ID\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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, program_invocation_short_name);
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}
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}
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@ -46,6 +48,7 @@ static int parse_argv(int argc, char *argv[]) {
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ARG_VERSION = 0x100,
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ARG_VERSION = 0x100,
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ARG_ROOT,
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ARG_ROOT,
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ARG_COMMIT,
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ARG_COMMIT,
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ARG_PRINT,
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};
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};
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static const struct option options[] = {
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static const struct option options[] = {
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@ -53,6 +56,7 @@ static int parse_argv(int argc, char *argv[]) {
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{ "version", no_argument, NULL, ARG_VERSION },
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{ "version", no_argument, NULL, ARG_VERSION },
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{ "root", required_argument, NULL, ARG_ROOT },
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{ "root", required_argument, NULL, ARG_ROOT },
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{ "commit", no_argument, NULL, ARG_COMMIT },
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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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};
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};
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@ -82,6 +86,10 @@ static int parse_argv(int argc, char *argv[]) {
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arg_commit = true;
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arg_commit = true;
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break;
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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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case '?':
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return -EINVAL;
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return -EINVAL;
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@ -98,6 +106,8 @@ static int parse_argv(int argc, char *argv[]) {
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}
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}
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int main(int argc, char *argv[]) {
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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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int r;
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log_parse_environment();
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log_parse_environment();
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@ -107,10 +117,24 @@ int main(int argc, char *argv[]) {
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if (r <= 0)
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if (r <= 0)
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goto finish;
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goto finish;
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if (arg_commit)
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if (arg_commit) {
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r = machine_id_commit(arg_root);
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r = machine_id_commit(arg_root);
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else
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if (r < 0)
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r = machine_id_setup(arg_root, SD_ID128_NULL, NULL);
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goto finish;
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r = sd_id128_get_machine(&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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finish:
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free(arg_root);
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free(arg_root);
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