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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <errno.h>
#include <getopt.h>
#include <stddef.h>
#include <stdio.h>
#include "alloc-util.h"
#include "main-func.h"
#include "pretty-print.h"
#include "process-util.h"
#include "selinux-util.h"
#include "string-util.h"
#include "udev-util.h"
#include "udevadm.h"
#include "udevd.h"
#include "util.h"
#include "verbs.h"
static int help(void) {
static const char *const short_descriptions[][2] = {
{ "info", "Query sysfs or the udev database" },
{ "trigger", "Request events from the kernel" },
{ "settle", "Wait for pending udev events" },
{ "control", "Control the udev daemon" },
{ "monitor", "Listen to kernel and udev events" },
{ "test", "Test an event run" },
{ "test-builtin", "Test a built-in command" },
{ "wait", "Wait for device or device symlink" },
{ "lock", "Lock a block device" },
};
_cleanup_free_ char *link = NULL;
size_t i;
int r;
r = terminal_urlify_man("udevadm", "8", &link);
if (r < 0)
return log_oom();
printf("%s [--help] [--version] [--debug] COMMAND [COMMAND OPTIONS]\n\n"
"Send control commands or test the device manager.\n\n"
"Commands:\n",
program_invocation_short_name);
for (i = 0; i < ELEMENTSOF(short_descriptions); i++)
printf(" %-12s %s\n", short_descriptions[i][0], short_descriptions[i][1]);
printf("\nSee the %s for details.\n", link);
return 0;
}
static int parse_argv(int argc, char *argv[]) {
static const struct option options[] = {
{ "debug", no_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{}
};
int c;
assert(argc >= 0);
assert(argv);
/* Resetting to 0 forces the invocation of an internal initialization routine of getopt_long()
* that checks for GNU extensions in optstring ('-' or '+' at the beginning). */
optind = 0;
while ((c = getopt_long(argc, argv, "+dhV", options, NULL)) >= 0)
switch (c) {
case 'd':
log_set_max_level(LOG_DEBUG);
break;
case 'h':
return help();
case 'V':
return print_version();
case '?':
return -EINVAL;
default:
assert_not_reached();
}
return 1; /* work to do */
}
static int version_main(int argc, char *argv[], void *userdata) {
return print_version();
}
static int help_main(int argc, char *argv[], void *userdata) {
return help();
}
static int udevadm_main(int argc, char *argv[]) {
static const Verb verbs[] = {
{ "info", VERB_ANY, VERB_ANY, 0, info_main },
{ "trigger", VERB_ANY, VERB_ANY, 0, trigger_main },
{ "settle", VERB_ANY, VERB_ANY, 0, settle_main },
{ "control", VERB_ANY, VERB_ANY, 0, control_main },
{ "monitor", VERB_ANY, VERB_ANY, 0, monitor_main },
{ "hwdb", VERB_ANY, VERB_ANY, 0, hwdb_main },
{ "test", VERB_ANY, VERB_ANY, 0, test_main },
{ "test-builtin", VERB_ANY, VERB_ANY, 0, builtin_main },
{ "wait", VERB_ANY, VERB_ANY, 0, wait_main },
{ "lock", VERB_ANY, VERB_ANY, 0, lock_main },
{ "version", VERB_ANY, VERB_ANY, 0, version_main },
{ "help", VERB_ANY, VERB_ANY, 0, help_main },
{}
};
return dispatch_verb(argc, argv, verbs, NULL);
}
static int run(int argc, char *argv[]) {
int r;
if (invoked_as(argv, "udevd"))
return run_udevd(argc, argv);
udev_parse_config();
log_parse_environment();
log_open();
r = parse_argv(argc, argv);
if (r <= 0)
return r;
r = mac_selinux_init();
if (r < 0)
return r;
return udevadm_main(argc, argv);
}
DEFINE_MAIN_FUNCTION(run);
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