diff options
Diffstat (limited to 'src/udev/udevadm.c')
| -rw-r--r-- | src/udev/udevadm.c | 170 |
1 files changed, 84 insertions, 86 deletions
diff --git a/src/udev/udevadm.c b/src/udev/udevadm.c index 0b79d2f91d..1125c54b9f 100644 --- a/src/udev/udevadm.c +++ b/src/udev/udevadm.c @@ -1,90 +1,62 @@ /* SPDX-License-Identifier: GPL-2.0+ */ -/* - * - */ #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 "selinux-util.h" #include "string-util.h" -#include "udev.h" +#include "udevadm.h" #include "udev-util.h" +#include "verbs.h" +#include "util.h" + +static int help(void) { + static const char * 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" }, + }; -static int adm_version(struct udev *udev, int argc, char *argv[]) { - printf("%s\n", PACKAGE_VERSION); - return 0; -} + _cleanup_free_ char *link = NULL; + size_t i; + int r; -static const struct udevadm_cmd udevadm_version = { - .name = "version", - .cmd = adm_version, -}; - -static int adm_help(struct udev *udev, int argc, char *argv[]); - -static const struct udevadm_cmd udevadm_help = { - .name = "help", - .cmd = adm_help, -}; - -static const struct udevadm_cmd *udevadm_cmds[] = { - &udevadm_info, - &udevadm_trigger, - &udevadm_settle, - &udevadm_control, - &udevadm_monitor, - &udevadm_hwdb, - &udevadm_test, - &udevadm_test_builtin, - &udevadm_version, - &udevadm_help, -}; - -static int adm_help(struct udev *udev, int argc, char *argv[]) { - unsigned int i; + 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(udevadm_cmds); i++) - if (udevadm_cmds[i]->help != NULL) - printf(" %-12s %s\n", udevadm_cmds[i]->name, udevadm_cmds[i]->help); - return 0; -} + for (i = 0; i < ELEMENTSOF(short_descriptions); i++) + printf(" %-12s %s\n", short_descriptions[i][0], short_descriptions[i][1]); -static int run_command(struct udev *udev, const struct udevadm_cmd *cmd, int argc, char *argv[]) { - if (cmd->debug) - log_set_max_level(LOG_DEBUG); - log_debug("calling: %s", cmd->name); - return cmd->cmd(udev, argc, argv); + printf("\nSee the %s for details.\n", link); + return 0; } -int main(int argc, char *argv[]) { - struct udev *udev; +static int parse_argv(int argc, char *argv[]) { static const struct option options[] = { - { "debug", no_argument, NULL, 'd' }, - { "help", no_argument, NULL, 'h' }, + { "debug", no_argument, NULL, 'd' }, + { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, 'V' }, {} }; - const char *command; - unsigned int i; - int rc = 1, c; - - udev_parse_config(); - log_parse_environment(); - log_open(); - - mac_selinux_init(); + int c; - udev = udev_new(); - if (udev == NULL) - goto out; + assert(argc >= 0); + assert(argv); while ((c = getopt_long(argc, argv, "+dhV", options, NULL)) >= 0) switch (c) { @@ -94,35 +66,61 @@ int main(int argc, char *argv[]) { break; case 'h': - rc = adm_help(udev, argc, argv); - goto out; + return help(); case 'V': - rc = adm_version(udev, argc, argv); - goto out; + return print_version(); + + case '?': + return -EINVAL; default: - goto out; + assert_not_reached("Unhandled option"); } - command = argv[optind]; - - if (command != NULL) - for (i = 0; i < ELEMENTSOF(udevadm_cmds); i++) - if (streq(udevadm_cmds[i]->name, command)) { - argc -= optind; - argv += optind; - /* we need '0' here to reset the internal state */ - optind = 0; - rc = run_command(udev, udevadm_cmds[i], argc, argv); - goto out; - } - - fprintf(stderr, "%s: missing or unknown command\n", program_invocation_short_name); - rc = 2; -out: - mac_selinux_finish(); - udev_unref(udev); - log_close(); - return rc; + 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 }, + { "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; + + udev_parse_config(); + log_parse_environment(); + log_open(); + log_set_max_level_realm(LOG_REALM_SYSTEMD, log_get_max_level()); + + r = parse_argv(argc, argv); + if (r <= 0) + return r; + + mac_selinux_init(); + return udevadm_main(argc, argv); } + +DEFINE_MAIN_FUNCTION(run); |