From 142c2f03d9b2b5264112dddd36c658954cf877b8 Mon Sep 17 00:00:00 2001
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From: Jeffy Chen <jeffy.chen@rock-chips.com>
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Date: Mon, 16 Jul 2018 09:53:40 +0800
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Subject: [PATCH] Support rebooting with arg
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Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
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---
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src/halt.c | 19 +++++++++++++++++--
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1 file changed, 17 insertions(+), 2 deletions(-)
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diff --git a/src/halt.c b/src/halt.c
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index 499e973..26e6c86 100644
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--- a/src/halt.c
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+++ b/src/halt.c
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@@ -58,6 +58,9 @@
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#include <getopt.h>
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#include "reboot.h"
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+#include <linux/reboot.h>
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+#include <sys/syscall.h>
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+
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char *Version = "@(#)halt 2.86 31-Jul-2004 miquels@cistron.nl";
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char *progname;
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@@ -184,6 +187,7 @@ int main(int argc, char **argv)
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int do_poweroff = 0;
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int c;
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char *tm = NULL;
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+ char *extra_arg = NULL;
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/*
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* Find out who we are
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@@ -232,7 +236,8 @@ int main(int argc, char **argv)
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usage();
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}
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}
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- if (argc != optind) usage();
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+ if (argc != optind)
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+ extra_arg = argv[optind];
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if (geteuid() != 0) {
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fprintf(stderr, "%s: must be superuser.\n", progname);
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@@ -241,7 +246,7 @@ int main(int argc, char **argv)
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(void)chdir("/");
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- if (!do_hard && !do_nothing) {
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+ if (!do_hard && !do_nothing && !extra_arg) {
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/*
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* See if we are in runlevel 0 or 6.
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*/
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@@ -277,6 +282,16 @@ int main(int argc, char **argv)
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if (do_nothing) exit(0);
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if (do_reboot) {
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+ if (extra_arg) {
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+ if (!do_sync)
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+ sync();
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+ printf("rebooting with arg(%s)", extra_arg);
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+ syscall(__NR_reboot, LINUX_REBOOT_MAGIC1,
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+ LINUX_REBOOT_MAGIC2,
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+ LINUX_REBOOT_CMD_RESTART2, extra_arg);
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+ exit(0);
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+ }
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+
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init_reboot(BMAGIC_REBOOT);
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} else {
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/*
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--
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2.11.0
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