mirror of https://github.com/pygos/init.git
41 lines
638 B
C
41 lines
638 B
C
/* SPDX-License-Identifier: ISC */
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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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sigemptyset(&mask);
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sigaddset(&mask, SIGCHLD);
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sigaddset(&mask, SIGINT);
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sigaddset(&mask, SIGTERM);
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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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