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grep: support -z find: support --mindepth together +45 bytes cpio: support -p (configurable, +230 bytes) libbb: tweaks for cpio
37 lines
949 B
C
37 lines
949 B
C
/* vi: set sw=4 ts=4: */
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/*
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* setsid.c -- execute a command in a new session
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* Rick Sladkey <jrs@world.std.com>
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* In the public domain.
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*
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* 1999-02-22 Arkadiusz Mickiewicz <misiek@pld.ORG.PL>
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* - added Native Language Support
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*
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* 2001-01-18 John Fremlin <vii@penguinpowered.com>
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* - fork in case we are process group leader
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*
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* 2004-11-12 Paul Fox
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* - busyboxed
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*/
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#include "libbb.h"
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int setsid_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int setsid_main(int argc UNUSED_PARAM, char **argv)
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{
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if (!argv[1])
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bb_show_usage();
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/* setsid() is allowed only when we are not a process group leader.
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* Otherwise our PID serves as PGID of some existing process group
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* and cannot be used as PGID of a new process group. */
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if (getpgrp() == getpid())
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if (fork_or_rexec(argv))
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exit(EXIT_SUCCESS); /* parent */
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setsid(); /* no error possible */
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BB_EXECVP(argv[1], argv + 1);
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bb_simple_perror_msg_and_die(argv[1]);
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}
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