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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <getopt.h>
#include "alloc-util.h"
#include "pretty-print.h"
#include "systemctl-compat-shutdown.h"
#include "systemctl-sysv-compat.h"
#include "systemctl.h"
#include "terminal-util.h"
static int shutdown_help(void) {
_cleanup_free_ char *link = NULL;
int r;
r = terminal_urlify_man("shutdown", "8", &link);
if (r < 0)
return log_oom();
printf("%s [OPTIONS...] [TIME] [WALL...]\n"
"\n%sShut down the system.%s\n"
"\nOptions:\n"
" --help Show this help\n"
" -H --halt Halt the machine\n"
" -P --poweroff Power-off the machine\n"
" -r --reboot Reboot the machine\n"
" -h Equivalent to --poweroff, overridden by --halt\n"
" -k Don't halt/power-off/reboot, just send warnings\n"
" --no-wall Don't send wall message before halt/power-off/reboot\n"
" -c Cancel a pending shutdown\n"
"\nSee the %s for details.\n",
program_invocation_short_name,
ansi_highlight(),
ansi_normal(),
link);
return 0;
}
int shutdown_parse_argv(int argc, char *argv[]) {
enum {
ARG_HELP = 0x100,
ARG_NO_WALL
};
static const struct option options[] = {
{ "help", no_argument, NULL, ARG_HELP },
{ "halt", no_argument, NULL, 'H' },
{ "poweroff", no_argument, NULL, 'P' },
{ "reboot", no_argument, NULL, 'r' },
{ "kexec", no_argument, NULL, 'K' }, /* not documented extension */
{ "no-wall", no_argument, NULL, ARG_NO_WALL },
{}
};
char **wall = NULL;
int c, r;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "HPrhkKat:fFc", options, NULL)) >= 0)
switch (c) {
case ARG_HELP:
return shutdown_help();
case 'H':
arg_action = ACTION_HALT;
break;
case 'P':
arg_action = ACTION_POWEROFF;
break;
case 'r':
if (kexec_loaded())
arg_action = ACTION_KEXEC;
else
arg_action = ACTION_REBOOT;
break;
case 'K':
arg_action = ACTION_KEXEC;
break;
case 'h':
if (arg_action != ACTION_HALT)
arg_action = ACTION_POWEROFF;
break;
case 'k':
arg_dry_run = true;
break;
case ARG_NO_WALL:
arg_no_wall = true;
break;
case 'a':
case 't': /* Note that we also ignore any passed argument to -t, not just the -t itself */
case 'f':
case 'F':
/* Compatibility nops */
break;
case 'c':
arg_action = ACTION_CANCEL_SHUTDOWN;
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
if (argc > optind && arg_action != ACTION_CANCEL_SHUTDOWN) {
r = parse_shutdown_time_spec(argv[optind], &arg_when);
if (r < 0) {
log_error("Failed to parse time specification: %s", argv[optind]);
return r;
}
} else
arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE;
if (argc > optind && arg_action == ACTION_CANCEL_SHUTDOWN)
/* No time argument for shutdown cancel */
wall = argv + optind;
else if (argc > optind + 1)
/* We skip the time argument */
wall = argv + optind + 1;
if (wall) {
char **copy = strv_copy(wall);
if (!copy)
return log_oom();
strv_free_and_replace(arg_wall, copy);
}
optind = argc;
return 1;
}
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