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-rw-r--r--miscutils/setsid.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/miscutils/setsid.c b/miscutils/setsid.c
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1/* vi: set sw=4 ts=4: */
2/*
3 * setsid.c -- execute a command in a new session
4 * Rick Sladkey <jrs@world.std.com>
5 * In the public domain.
6 *
7 * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
8 * - added Native Language Support
9 *
10 * 2001-01-18 John Fremlin <vii@penguinpowered.com>
11 * - fork in case we are process group leader
12 *
13 * 2004-11-12 Paul Fox
14 * - busyboxed
15 */
16
17#include "busybox.h"
18#include <stdio.h>
19#include <unistd.h>
20#include <stdlib.h>
21
22int setsid_main(int argc, char *argv[])
23{
24 if (argc < 2)
25 bb_show_usage();
26
27 if (getpgrp() == getpid()) {
28 switch (fork()){
29 case -1:
30 bb_perror_msg_and_die("fork");
31 case 0:
32 break;
33 default: /* parent */
34 exit(0);
35 }
36 /* child falls through */
37 }
38
39 setsid(); /* no error possible */
40
41 execvp(argv[1], argv + 1);
42
43 bb_perror_msg_and_die("%s", argv[1]);
44}