Bernhard Reutner-Fischer | c89982d | 2006-06-03 19:49:21 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Paul Fox | 4240364 | 2005-08-01 22:52:09 +0000 | [diff] [blame] | 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 | |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 17 | #include "libbb.h" |
Paul Fox | 4240364 | 2005-08-01 22:52:09 +0000 | [diff] [blame] | 18 | |
Denis Vlasenko | 9b49a5e | 2007-10-11 10:05:36 +0000 | [diff] [blame] | 19 | int setsid_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
Bernhard Reutner-Fischer | febe3c4 | 2007-04-04 20:52:03 +0000 | [diff] [blame] | 20 | int setsid_main(int argc, char **argv) |
Mike Frysinger | e1d41b3 | 2006-03-23 02:07:41 +0000 | [diff] [blame] | 21 | { |
| 22 | if (argc < 2) |
Paul Fox | 4240364 | 2005-08-01 22:52:09 +0000 | [diff] [blame] | 23 | bb_show_usage(); |
Paul Fox | 4240364 | 2005-08-01 22:52:09 +0000 | [diff] [blame] | 24 | |
Denis Vlasenko | 53091ec | 2007-03-26 13:35:09 +0000 | [diff] [blame] | 25 | /* Comment why is this necessary? */ |
| 26 | if (getpgrp() == getpid()) |
| 27 | forkexit_or_rexec(argv); |
Paul Fox | 4240364 | 2005-08-01 22:52:09 +0000 | [diff] [blame] | 28 | |
| 29 | setsid(); /* no error possible */ |
| 30 | |
Denis Vlasenko | 1d76f43 | 2007-02-06 01:20:12 +0000 | [diff] [blame] | 31 | BB_EXECVP(argv[1], argv + 1); |
Denis Vlasenko | 0c97c9d | 2007-10-01 11:58:38 +0000 | [diff] [blame] | 32 | bb_simple_perror_msg_and_die(argv[1]); |
Paul Fox | 4240364 | 2005-08-01 22:52:09 +0000 | [diff] [blame] | 33 | } |