af229d7a5b
This usually is very annoying to users who then cannot log in, so
make sure we always warn if that happens (selinux, or whatever other reason).
This reverts a790812cb3.
70 lines
2 KiB
C
70 lines
2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <unistd.h>
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#include "fileio.h"
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#include "fileio-label.h"
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#include "fs-util.h"
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#include "log.h"
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#include "selinux-util.h"
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#include "string-util.h"
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#include "util.h"
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int main(int argc, char*argv[]) {
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int r, k;
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if (argc != 2) {
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log_error("This program requires one argument.");
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return EXIT_FAILURE;
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}
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log_set_target(LOG_TARGET_AUTO);
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log_parse_environment();
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log_open();
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umask(0022);
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mac_selinux_init();
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if (streq(argv[1], "start")) {
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r = unlink_or_warn("/run/nologin");
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k = unlink_or_warn("/etc/nologin");
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if (r < 0 || k < 0)
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return EXIT_FAILURE;
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} else if (streq(argv[1], "stop")) {
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r = write_string_file_atomic_label("/run/nologin", "System is going down.");
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if (r < 0) {
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log_error_errno(r, "Failed to create /run/nologin: %m");
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return EXIT_FAILURE;
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}
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} else {
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log_error("Unknown verb %s.", argv[1]);
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return EXIT_FAILURE;
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}
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mac_selinux_finish();
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return EXIT_SUCCESS;
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}
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