freebsd-dev/lib/libutil/libutil.h

/*
 * 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.
 *
 * $FreeBSD$
 */

#ifndef _LIBUTIL_H_
#define	_LIBUTIL_H_

#define PROPERTY_MAX_NAME	64
#define PROPERTY_MAX_VALUE	512

/* for properties.c */
typedef struct _property {
	struct _property *next;
	char *name;
	char *value;
} *properties;

#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

/* Avoid pulling in all the include files for no need */
struct termios;
struct winsize;
struct utmp;
struct in_addr;

__BEGIN_DECLS
void	clean_environment(const char * const *_white,
	    const char * const *_more_white);
int	extattr_namespace_to_string(int _attrnamespace, char **_string);
int	extattr_string_to_namespace(const char *_string, int *_attrnamespace);
int	flopen(const char *_path, int _flags, ...);
void	login(struct utmp *_ut);
int	login_tty(int _fd);
int	logout(const char *_line);
void	logwtmp(const char *_line, const char *_name, const char *_host);
void	trimdomain(char *_fullhost, int _hostsize);
int	openpty(int *_amaster, int *_aslave, char *_name,
		     struct termios *_termp, struct winsize *_winp);
int	forkpty(int *_amaster, char *_name,
		     struct termios *_termp, struct winsize *_winp);
int	humanize_number(char *_buf, size_t _len, int64_t _number,
	    const char *_suffix, int _scale, int _flags);
int	expand_number(const char *_buf, int64_t *_num);
const char *uu_lockerr(int _uu_lockresult);
int	uu_lock(const char *_ttyname);
int	uu_unlock(const char *_ttyname);
int	uu_lock_txfr(const char *_ttyname, pid_t _pid);
int	_secure_path(const char *_path, uid_t _uid, gid_t _gid);
properties properties_read(int fd);
void	properties_free(properties list);
char	*property_find(properties list, const char *name);
char	*auth_getval(const char *name);
int	realhostname(char *host, size_t hsize, const struct in_addr *ip);
struct sockaddr;
int	realhostname_sa(char *host, size_t hsize, struct sockaddr *addr,
			     int addrlen);

int	kld_isloaded(const char *name);
int	kld_load(const char *name);

#ifdef _STDIO_H_	/* avoid adding new includes */
char   *fparseln(FILE *, size_t *, size_t *, const char[3], int);
#endif

#ifdef _PWD_H_
int	pw_copy(int _ffd, int _tfd, const struct passwd *_pw, struct passwd *_old_pw);
struct passwd *pw_dup(const struct passwd *_pw);
int	pw_edit(int _notsetuid);
int	pw_equal(const struct passwd *_pw1, const struct passwd *_pw2);
void	pw_fini(void);
int	pw_init(const char *_dir, const char *_master);
char	*pw_make(const struct passwd *_pw);
int	pw_mkdb(const char *_user);
int	pw_lock(void);
struct passwd *pw_scan(const char *_line, int _flags);
const char *pw_tempname(void);
int	pw_tmp(int _mfd);
#endif

#ifdef _GRP_H_
int	gr_equal(const struct group *gr1, const struct group *gr2);
char	*gr_make(const struct group *gr);
struct group *gr_dup(const struct group *gr);
struct group *gr_scan(const char *line);
#endif

#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

__END_DECLS

#define UU_LOCK_INUSE (1)
#define UU_LOCK_OK (0)
#define UU_LOCK_OPEN_ERR (-1)
#define UU_LOCK_READ_ERR (-2)
#define UU_LOCK_CREAT_ERR (-3)
#define UU_LOCK_WRITE_ERR (-4)
#define UU_LOCK_LINK_ERR (-5)
#define UU_LOCK_TRY_ERR (-6)
#define UU_LOCK_OWNER_ERR (-7)

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

/* fparseln(3) */
#define	FPARSELN_UNESCESC	0x01
#define	FPARSELN_UNESCCONT	0x02
#define	FPARSELN_UNESCCOMM	0x04
#define	FPARSELN_UNESCREST	0x08
#define	FPARSELN_UNESCALL	0x0f

/* pw_scan() */
#define PWSCAN_MASTER		0x01
#define PWSCAN_WARN		0x02

/* 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_ */