ubase/ctrlaltdel.c

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/* See LICENSE file for copyright and license details. */
#include <sys/syscall.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "reboot.h"
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s -h | -s\n", argv0);
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}
int
main(int argc, char *argv[])
{
int hflag = 0, sflag = 0, cmd;
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ARGBEGIN {
case 'h':
hflag = 1;
break;
case 's':
sflag = 1;
break;
default:
usage();
} ARGEND;
if (argc || !(hflag ^ sflag))
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usage();
cmd = hflag ? LINUX_REBOOT_CMD_CAD_ON : LINUX_REBOOT_CMD_CAD_OFF;
if (syscall(__NR_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
cmd, NULL) < 0)
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eprintf("reboot:");
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return 0;
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}