/*
 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
 * Copyright (c) 1996,1999 by Internet Software Consortium.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * $Id: irs.h,v 8.10 2004/01/16 02:01:26 vixie Exp $
 */

#ifndef _IRS_H_INCLUDED
#define _IRS_H_INCLUDED

#include <sys/types.h>

#include <arpa/nameser.h>

#include <grp.h>
#include <netdb.h>
#include <resolv.h>
#include <pwd.h>

/*
 * This is the group map class.
 */
struct irs_gr {
	void *		private;
	void		(*close) __P((struct irs_gr *));
	struct group *	(*next) __P((struct irs_gr *));
	struct group *	(*byname) __P((struct irs_gr *, const char *));
	struct group *	(*bygid) __P((struct irs_gr *, gid_t));
	int		(*list) __P((struct irs_gr *, const char *,
				     gid_t, gid_t *, int *));
	void		(*rewind) __P((struct irs_gr *));
	void		(*minimize) __P((struct irs_gr *));
	struct __res_state * (*res_get) __P((struct irs_gr *));
	void		(*res_set) __P((struct irs_gr *, res_state,
					void (*)(void *)));
};

/*
 * This is the password map class.
 */
struct irs_pw {
	void *		private;
	void		(*close) __P((struct irs_pw *));
	struct passwd *	(*next) __P((struct irs_pw *));
	struct passwd *	(*byname) __P((struct irs_pw *, const char *));
	struct passwd *	(*byuid) __P((struct irs_pw *, uid_t));
	void		(*rewind) __P((struct irs_pw *));
	void		(*minimize) __P((struct irs_pw *));
	struct __res_state * (*res_get) __P((struct irs_pw *));
	void		(*res_set) __P((struct irs_pw *, res_state,
					void (*)(void *)));
};

/*
 * This is the service map class.
 */
struct irs_sv {
	void *		private;
	void		(*close) __P((struct irs_sv *));
	struct servent *(*byname) __P((struct irs_sv *,
				       const char *, const char *));
	struct servent *(*byport) __P((struct irs_sv *, int, const char *));
	struct servent *(*next) __P((struct irs_sv *));
	void		(*rewind) __P((struct irs_sv *));
	void		(*minimize) __P((struct irs_sv *));
	struct __res_state * (*res_get) __P((struct irs_sv *));
	void		(*res_set) __P((struct irs_sv *, res_state,
					void (*)(void *)));
};

/*
 * This is the protocols map class.
 */
struct irs_pr {
	void *		private;
	void		(*close) __P((struct irs_pr *));
	struct protoent	*(*byname) __P((struct irs_pr *, const char *));
	struct protoent	*(*bynumber) __P((struct irs_pr *, int));
	struct protoent	*(*next) __P((struct irs_pr *));
	void		(*rewind) __P((struct irs_pr *));
	void		(*minimize) __P((struct irs_pr *));
	struct __res_state * (*res_get) __P((struct irs_pr *));
	void		(*res_set) __P((struct irs_pr *, res_state,
					void (*)(void *)));
};

/*
 * This is the hosts map class.
 */
struct irs_ho {
	void *		private;
	void		(*close) __P((struct irs_ho *));
	struct hostent *(*byname) __P((struct irs_ho *, const char *));
	struct hostent *(*byname2) __P((struct irs_ho *, const char *, int));
	struct hostent *(*byaddr) __P((struct irs_ho *,
				       const void *, int, int));
	struct hostent *(*next) __P((struct irs_ho *));
	void		(*rewind) __P((struct irs_ho *));
	void		(*minimize) __P((struct irs_ho *));
	struct __res_state * (*res_get) __P((struct irs_ho *));
	void		(*res_set) __P((struct irs_ho *, res_state,
					void (*)(void *)));
	struct addrinfo *(*addrinfo) __P((struct irs_ho *, const char *,
					  const struct addrinfo *));
};

/*
 * This is the networks map class.
 */
struct irs_nw {
	void *		private;
	void		(*close) __P((struct irs_nw *));
	struct nwent *	(*byname) __P((struct irs_nw *, const char *, int));
	struct nwent *	(*byaddr) __P((struct irs_nw *, void *, int, int));
	struct nwent *	(*next) __P((struct irs_nw *));
	void		(*rewind) __P((struct irs_nw *));
	void		(*minimize) __P((struct irs_nw *));
	struct __res_state * (*res_get) __P((struct irs_nw *));
	void		(*res_set) __P((struct irs_nw *, res_state,
					void (*)(void *)));
};

/*
 * This is the netgroups map class.
 */
struct irs_ng {
	void *		private;
	void		(*close) __P((struct irs_ng *));
	int		(*next) __P((struct irs_ng *, const char **,
				     const char **, const char **));
	int		(*test) __P((struct irs_ng *, const char *,
				     const char *, const char *,
				     const char *));
	void		(*rewind) __P((struct irs_ng *, const char *));
	void		(*minimize) __P((struct irs_ng *));
};

/*
 * This is the generic map class, which copies the front of all others.
 */
struct irs_map {
	void *		private;
	void		(*close) __P((void *));
};

/*
 * This is the accessor class.  It contains pointers to all of the
 * initializers for the map classes for a particular accessor.
 */
struct irs_acc {
	void *		private;
	void		(*close) __P((struct irs_acc *));
	struct irs_gr *	(*gr_map) __P((struct irs_acc *));
	struct irs_pw *	(*pw_map) __P((struct irs_acc *));
	struct irs_sv *	(*sv_map) __P((struct irs_acc *));
	struct irs_pr *	(*pr_map) __P((struct irs_acc *));
	struct irs_ho *	(*ho_map) __P((struct irs_acc *));
	struct irs_nw *	(*nw_map) __P((struct irs_acc *));
	struct irs_ng *	(*ng_map) __P((struct irs_acc *));
	struct __res_state * (*res_get) __P((struct irs_acc *));
	void		(*res_set) __P((struct irs_acc *, res_state,
					void (*)(void *)));
};

/*
 * This is because the official definition of "struct netent" has no
 * concept of CIDR even though it allows variant address families (on
 * output but not input).  The compatibility stubs convert the structs
 * below into "struct netent"'s.
 */
struct nwent {
	char		*n_name;	/* official name of net */
	char		**n_aliases;	/* alias list */
	int		n_addrtype;	/* net address type */
	void		*n_addr;	/* network address */
	int		n_length;	/* address length, in bits */
};

/*
 * Hide external function names from POSIX.
 */
#define	irs_gen_acc	__irs_gen_acc
#define	irs_lcl_acc	__irs_lcl_acc
#define	irs_dns_acc	__irs_dns_acc
#define	irs_nis_acc	__irs_nis_acc
#define	irs_irp_acc	__irs_irp_acc
#define	irs_destroy	__irs_destroy
#define	irs_dns_gr	__irs_dns_gr
#define	irs_dns_ho	__irs_dns_ho
#define	irs_dns_nw	__irs_dns_nw
#define	irs_dns_pr	__irs_dns_pr
#define	irs_dns_pw	__irs_dns_pw
#define	irs_dns_sv	__irs_dns_sv
#define	irs_gen_gr	__irs_gen_gr
#define	irs_gen_ho	__irs_gen_ho
#define	irs_gen_ng	__irs_gen_ng
#define	irs_gen_nw	__irs_gen_nw
#define	irs_gen_pr	__irs_gen_pr
#define	irs_gen_pw	__irs_gen_pw
#define	irs_gen_sv	__irs_gen_sv
#define	irs_irp_get_full_response	__irs_irp_get_full_response
#define	irs_irp_gr	__irs_irp_gr
#define	irs_irp_ho	__irs_irp_ho
#define	irs_irp_is_connected	__irs_irp_is_connected
#define	irs_irp_ng	__irs_irp_ng
#define	irs_irp_nw	__irs_irp_nw
#define	irs_irp_pr	__irs_irp_pr
#define	irs_irp_pw	__irs_irp_pw
#define	irs_irp_read_line	__irs_irp_read_line
#define	irs_irp_sv	__irs_irp_sv
#define	irs_lcl_gr	__irs_lcl_gr
#define	irs_lcl_ho	__irs_lcl_ho
#define	irs_lcl_ng	__irs_lcl_ng
#define	irs_lcl_nw	__irs_lcl_nw
#define	irs_lcl_pr	__irs_lcl_pr
#define	irs_lcl_pw	__irs_lcl_pw
#define	irs_lcl_sv	__irs_lcl_sv
#define	irs_nis_gr	__irs_nis_gr
#define	irs_nis_ho	__irs_nis_ho
#define	irs_nis_ng	__irs_nis_ng
#define	irs_nis_nw	__irs_nis_nw
#define	irs_nis_pr	__irs_nis_pr
#define	irs_nis_pw	__irs_nis_pw
#define	irs_nis_sv	__irs_nis_sv
#define	net_data_create	__net_data_create
#define	net_data_destroy	__net_data_destroy
#define	net_data_minimize	__net_data_minimize

/*
 * Externs.
 */
extern struct irs_acc *	irs_gen_acc __P((const char *, const char *));
extern struct irs_acc *	irs_lcl_acc __P((const char *));
extern struct irs_acc *	irs_dns_acc __P((const char *));
extern struct irs_acc *	irs_nis_acc __P((const char *));
extern struct irs_acc *	irs_irp_acc __P((const char *));

extern void		irs_destroy __P((void));

/*
 * These forward declarations are for the semi-private functions in
 * the get*.c files. Each of these funcs implements the real get*
 * functionality and the standard versions are just wrappers that
 * call these. Apart from the wrappers, only irpd is expected to
 * call these directly, hence these decls are put here and not in
 * the /usr/include replacements.
 */

struct net_data;			/* forward */

/*
 * net_data_create gets a singleton net_data object.  net_data_init
 * creates as many net_data objects as times it is called.  Clients using
 * the default interface will use net_data_create by default.  Servers will
 * probably want net_data_init (one call per client)
 */
struct net_data *net_data_create __P((const char *));
struct net_data *net_data_init __P((const char *));
void		net_data_destroy __P((void *));
	
extern struct group    *getgrent_p __P((struct net_data *));
extern struct group    *getgrnam_p __P((const char *, struct net_data *));
extern struct group    *getgrgid_p __P((gid_t, struct net_data *));
extern int 		setgroupent_p __P((int, struct net_data *));
extern void 		endgrent_p __P((struct net_data *));
extern int		getgrouplist_p __P((const char *, gid_t, gid_t *, int *,
					    struct net_data *));

#ifdef SETGRENT_VOID
extern void 		setgrent_p __P((struct net_data *));
#else
extern int 		setgrent_p __P((struct net_data *));
#endif

extern struct hostent 	*gethostbyname_p __P((const char *,
					      struct net_data *));
extern struct hostent 	*gethostbyname2_p __P((const char *, int,
					       struct net_data *));
extern struct hostent 	*gethostbyaddr_p __P((const char *, int, int,
					      struct net_data *));
extern struct hostent 	*gethostent_p __P((struct net_data *));
extern void 		sethostent_p __P((int, struct net_data *));
extern void 		endhostent_p __P((struct net_data *));
extern struct hostent 	*getipnodebyname_p __P((const char *, int, int, int *,
					       struct net_data *));
extern struct hostent 	*getipnodebyaddr_p __P((const void *, size_t,
					      int, int *, struct net_data *));

extern struct netent 	*getnetent_p __P((struct net_data *));
extern struct netent 	*getnetbyname_p __P((const char *, struct net_data *));
extern struct netent 	*getnetbyaddr_p __P((unsigned long, int,
					     struct net_data *));
extern void		setnetent_p __P((int, struct net_data *));
extern void		endnetent_p __P((struct net_data *));

extern void		setnetgrent_p __P((const char *, struct net_data *));
extern void		endnetgrent_p __P((struct net_data *));
extern int		innetgr_p __P((const char *, const char *, const char *,
				       const char *, struct net_data *));
extern int		getnetgrent_p __P((const char **, const char **,
					   const char **, struct net_data *));

extern struct protoent  *getprotoent_p __P((struct net_data *));
extern struct protoent  *getprotobyname_p __P((const char *,
					       struct net_data *));
extern struct protoent	*getprotobynumber_p __P((int, struct net_data *));
extern void		setprotoent_p __P((int, struct net_data *));
extern void		endprotoent_p __P((struct net_data *));


extern struct passwd 	*getpwent_p __P((struct net_data *));
extern struct passwd 	*getpwnam_p __P((const char *, struct net_data *));
extern struct passwd 	*getpwuid_p __P((uid_t, struct net_data *));
extern int		setpassent_p __P((int, struct net_data *));
extern void		endpwent_p __P((struct net_data *));

#ifdef SETPWENT_VOID
extern void		setpwent_p __P((struct net_data *));
#else
extern int		setpwent_p __P((struct net_data *));
#endif

extern struct servent 	*getservent_p __P((struct net_data *));
extern struct servent 	*getservbyname_p __P((const char *, const char *,
					      struct net_data *));
extern struct servent 	*getservbyport_p __P((int, const char *,
					      struct net_data *));
extern void		setservent_p __P((int, struct net_data *));
extern void		endservent_p __P((struct net_data *));

#endif /*_IRS_H_INCLUDED*/
