/*-
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)daemon.c	5.5 (Berkeley) 04/27/93";
#endif /* LIBC_SCCS and not lint */

#include <fcntl.h>
#include <paths.h>
#include <unistd.h>

int
daemon(nochdir, noclose)
	int nochdir, noclose;
{
	int fd;

	switch (fork()) {
	case -1:
		return (-1);
	case 0:
		break;
	default:
		_exit(0);
	}

	if (setsid() == -1)
		return (-1);

	if (!nochdir)
		(void)chdir("/");

	if (!noclose && (fd = open(_PATH_DEVNULL, O_RDWR, 0)) != -1) {
		(void)dup2(fd, STDIN_FILENO);
		(void)dup2(fd, STDOUT_FILENO);
		(void)dup2(fd, STDERR_FILENO);
		if (fd > 2)
			(void)close (fd);
	}
	return (0);
}