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sortix--sortix/utils/reboot.c
2022-10-20 23:28:48 +02:00

50 lines
1.4 KiB
C

/*
* Copyright (c) 2021, 2022 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* reboot.c
* Reboots the computer.
*/
#include <sys/types.h>
#include <err.h>
#include <getopt.h>
#include <signal.h>
#include <stdlib.h>
int main(int argc, char* argv[])
{
int opt;
while ( (opt = getopt(argc, argv, "")) != -1 )
{
switch ( opt )
{
default: return 1;
}
}
if ( optind < argc )
errx(1, "extra operand: %s", argv[optind]);
pid_t init_pid = 1;
// TODO: Use a more reliable getinit() approach that also works in sshd.
if ( getenv("INIT_PID") )
init_pid = atoll(getenv("INIT_PID"));
if ( kill(init_pid, SIGINT) < 0 )
err(1, "kill: %" PRIdPID, init_pid);
return 0;
}