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/*
* Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2013 John Crispin <blogic@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <sys/reboot.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <libubox/uloop.h>
#include "../watchdog.h"
static struct uloop_process upgrade_proc;
unsigned int debug = 2;
static void upgrade_proc_cb(struct uloop_process *proc, int ret)
{
if (ret)
fprintf(stderr, "sysupgrade aborted with return code: %d\n", ret);
uloop_end();
}
static void sysupgarde(char *folder)
{
char *args[] = { "/sbin/sysupgrade", "nand", NULL, NULL };
args[2] = folder;
upgrade_proc.cb = upgrade_proc_cb;
upgrade_proc.pid = fork();
if (!upgrade_proc.pid) {
execvp(args[0], args);
fprintf(stderr, "Failed to fork sysupgrade\n");
exit(-1);
}
if (upgrade_proc.pid <= 0) {
fprintf(stderr, "Failed to start sysupgarde\n");
uloop_end();
}
}
int main(int argc, char **argv)
{
pid_t p = getpid();
if (p != 1) {
fprintf(stderr, "this tool needs to run as pid 1\n");
return -1;
}
if (chdir("/tmp") == -1) {
fprintf(stderr, "failed to chdir to /tmp: %s\n", strerror(errno));
return -1;
}
if (argc != 2) {
fprintf(stderr, "sysupgrade stage 2 failed, no folder specified\n");
return -1;
}
uloop_init();
watchdog_init(0);
sysupgarde(argv[1]);
uloop_run();
reboot(RB_AUTOBOOT);
return 0;
}
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