system: return ubus error when sysupgrade_exec_upgraded() has failed
[project/procd.git] / utils / askfirst.c
1 /*
2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License version 2.1
7 * as published by the Free Software Foundation
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15 #include <sys/types.h>
16 #include <sys/stat.h>
17
18 #include <stdio.h>
19 #include <unistd.h>
20 #include <fcntl.h>
21
22 int main(int argc, char **argv)
23 {
24 int c;
25
26 printf("Please press Enter to activate this console.\n");
27 do {
28 c = getchar();
29 if (c == EOF)
30 return -1;
31 }
32 while (c != 0xA);
33
34 if (argc < 2) {
35 printf("%s needs to be called with at least 1 parameter\n", argv[0]);
36 return -1;
37 }
38
39 execvp(argv[1], &argv[1]);
40 printf("Failed to execute %s\n", argv[1]);
41
42 return -1;
43 }