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/* vi: set sw=4 ts=4: */
/*
* setsid.c -- execute a command in a new session
* Rick Sladkey <jrs@world.std.com>
* In the public domain.
*
* 1999-02-22 Arkadiusz Mickiewicz <misiek@pld.ORG.PL>
* - added Native Language Support
*
* 2001-01-18 John Fremlin <vii@penguinpowered.com>
* - fork in case we are process group leader
*
* 2004-11-12 Paul Fox
* - busyboxed
*/
#include "libbb.h"
int setsid_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int setsid_main(int argc ATTRIBUTE_UNUSED, char **argv)
{
if (!argv[1])
bb_show_usage();
/* setsid() is allowed only when we are not a process group leader.
* Otherwise our PID serves as PGID of some existing process group
* and cannot be used as PGID of a new process group. */
if (getpgrp() == getpid())
forkexit_or_rexec(argv);
setsid(); /* no error possible */
BB_EXECVP(argv[1], argv + 1);
bb_simple_perror_msg_and_die(argv[1]);
}
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