diff options
Diffstat (limited to 'src/udev/udevadm.c')
-rw-r--r-- | src/udev/udevadm.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/udev/udevadm.c b/src/udev/udevadm.c new file mode 100644 index 0000000..28a16db --- /dev/null +++ b/src/udev/udevadm.c @@ -0,0 +1,140 @@ +/* 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); |