libutil.h   [plain text]


/*
 * Copyright (c) 1996  Peter Wemm <peter@FreeBSD.org>.
 * All rights reserved.
 * Copyright (c) 2002 Networks Associates Technology, Inc.
 * All rights reserved.
 *
 * Portions of this software were developed for the FreeBSD Project by
 * ThinkSec AS and NAI Labs, the Security Research Division of Network
 * Associates, Inc.  under DARPA/SPAWAR contract N66001-01-C-8035
 * ("CBOSS"), as part of the DARPA CHATS research program.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/lib/libutil/libutil.h,v 1.42 2006/02/18 11:25:28 des Exp $
 */

#ifndef _LIBUTIL_H_
#define	_LIBUTIL_H_

#include <unistd.h>
#include <stdbool.h>

#ifdef _SYS_PARAM_H_
/* for pidfile.c */
struct pidfh {
	int	pf_fd;
	char	pf_path[MAXPATHLEN + 1];
	dev_t	pf_dev;
	ino_t	pf_ino;
};
#endif

struct in_addr;
struct sockaddr;

__BEGIN_DECLS
int	humanize_number(char *_buf, size_t _len, int64_t _number,
	    const char *_suffix, int _scale, int _flags);

int	realhostname(char *host, size_t hsize, const struct in_addr *ip);
int	realhostname_sa(char *host, size_t hsize, struct sockaddr *addr,
			     int addrlen);

#ifdef _SYS_PARAM_H_
struct pidfh *pidfile_open(const char *path, mode_t mode, pid_t *pidptr);
int pidfile_write(struct pidfh *pfh);
int pidfile_close(struct pidfh *pfh);
int pidfile_remove(struct pidfh *pfh);
#endif

int reexec_to_match_kernel(void);
int reexec_to_match_lp64ness(bool isLP64);

__END_DECLS

/* return values from realhostname() */
#define HOSTNAME_FOUND		(0)
#define HOSTNAME_INCORRECTNAME	(1)
#define HOSTNAME_INVALIDADDR	(2)
#define HOSTNAME_INVALIDNAME	(3)

/* humanize_number(3) */
#define HN_DECIMAL		0x01
#define HN_NOSPACE		0x02
#define HN_B			0x04
#define HN_DIVISOR_1000		0x08

#define HN_GETSCALE		0x10
#define HN_AUTOSCALE		0x20

#endif /* !_LIBUTIL_H_ */