diff options
Diffstat (limited to 'miscutils/setsid.c')
-rw-r--r-- | miscutils/setsid.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/miscutils/setsid.c b/miscutils/setsid.c new file mode 100644 index 000000000..7df35be3b --- /dev/null +++ b/miscutils/setsid.c | |||
@@ -0,0 +1,46 @@ | |||
1 | /* | ||
2 | * setsid.c -- execute a command in a new session | ||
3 | * Rick Sladkey <jrs@world.std.com> | ||
4 | * In the public domain. | ||
5 | * | ||
6 | * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL> | ||
7 | * - added Native Language Support | ||
8 | * | ||
9 | * 2001-01-18 John Fremlin <vii@penguinpowered.com> | ||
10 | * - fork in case we are process group leader | ||
11 | * | ||
12 | * 2004-11-12 Paul Fox | ||
13 | * - busyboxed | ||
14 | */ | ||
15 | |||
16 | #include <stdio.h> | ||
17 | #include <unistd.h> | ||
18 | #include <stdlib.h> | ||
19 | #include "busybox.h" | ||
20 | |||
21 | int | ||
22 | setsid_main(int argc, char *argv[]) { | ||
23 | |||
24 | if (argc < 2) { | ||
25 | bb_show_usage(); | ||
26 | } | ||
27 | |||
28 | if (getpgrp() == getpid()) { | ||
29 | switch(fork()){ | ||
30 | case -1: | ||
31 | bb_perror_msg_and_die("fork"); | ||
32 | case 0: | ||
33 | break; | ||
34 | default: /* parent */ | ||
35 | exit(0); | ||
36 | } | ||
37 | /* child falls through */ | ||
38 | } | ||
39 | |||
40 | setsid(); /* no error possible */ | ||
41 | |||
42 | execvp(argv[1], argv + 1); | ||
43 | |||
44 | bb_perror_msg_and_die(argv[1]); | ||
45 | |||
46 | } | ||