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https://github.com/pygos/init.git
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52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* Copyright (C) 2018 - David Oberhollenzer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include "init.h"
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int sigsetup(void)
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{
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sigset_t mask;
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int sfd;
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sigfillset(&mask);
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if (sigprocmask(SIG_SETMASK, &mask, NULL) == -1) {
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perror("sigprocmask");
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return -1;
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}
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sfd = signalfd(-1, &mask, SFD_CLOEXEC);
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if (sfd == -1) {
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perror("signalfd");
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return -1;
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}
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if (reboot(LINUX_REBOOT_CMD_CAD_OFF))
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perror("cannot disable CTRL+ALT+DEL");
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return sfd;
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}
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void sigreset(void)
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{
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sigset_t mask;
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sigemptyset(&mask);
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sigprocmask(SIG_SETMASK, &mask, NULL);
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}
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