busybox/miscutils/setsid.c
Denis Vlasenko 9af7c9d6b6 openvt,getty,vfork_daemon_rexec,mount: tighten up fd cleanup code
(will close all fd's > 2 on daemonization now)
getty: fix "getty -" support, and also do not try to chown/chmod "-"
telnetd: fix "lost ctty" bug
Yet another attempt on saner function names:
bb_sanitize_server_stdio(0/1) -> bb_sanitize_stdio() + bb_daemonize();
2007-01-19 21:19:35 +00:00

42 lines
757 B
C

/* 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 Mi¶kiewicz <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 "busybox.h"
int setsid_main(int argc, char *argv[])
{
if (argc < 2)
bb_show_usage();
if (getpgrp() == getpid()) {
switch (fork()) {
case -1:
bb_perror_msg_and_die("fork");
case 0:
break;
default: /* parent */
exit(0);
}
}
/* child */
setsid(); /* no error possible */
execvp(argv[1], argv + 1);
bb_perror_msg_and_die("%s", argv[1]);
}