/*      $NetBSD: yplib.c,v 1.5 2003/12/10 12:06:25 agc Exp $    */

/*
 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt@fsa.ca>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
 */

/*
 * This file provides "stubs" for all the YP library functions.
 * It is not needed unless you pull in things that call YP, and
 * if you use all the get* files here then the YP stuff should
 * not get dragged in.  But if it does, one can use this.
 *
 * This was copied from:
 *      lib/libc/yp/yplib.c
 * (and then completely gutted! 8^)
 */
#include <sys/cdefs.h>

#ifdef __weak_alias
#define yp_all                  _yp_all
#define yp_bind                 _yp_bind
#define yp_first                _yp_first
#define yp_get_default_domain   _yp_get_default_domain
#define yp_maplist              _yp_maplist
#define yp_master               _yp_master
#define yp_match                _yp_match
#define yp_next                 _yp_next
#define yp_order                _yp_order
#define yp_unbind               _yp_unbind
#define yperr_string            _yperr_string
#define ypprot_err              _ypprot_err
#endif

#include <sys/types.h>

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <rpc/rpc.h>
#include <rpc/xdr.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>

struct dom_binding *_ypbindlist;
char _yp_domain[256];

#define YPLIB_TIMEOUT           10
#define YPLIB_RPC_RETRIES       4

struct timeval _yplib_timeout = { YPLIB_TIMEOUT, 0 };
struct timeval _yplib_rpc_timeout = { YPLIB_TIMEOUT / YPLIB_RPC_RETRIES,
        1000000 * (YPLIB_TIMEOUT % YPLIB_RPC_RETRIES) / YPLIB_RPC_RETRIES };
int _yplib_nerrs = 5;


#ifdef __weak_alias
__weak_alias(yp_all,_yp_all);
__weak_alias(yp_bind, _yp_bind);
__weak_alias(yp_first,_yp_first);
__weak_alias(yp_get_default_domain, _yp_get_default_domain);
__weak_alias(yp_maplist,_yp_maplist);
__weak_alias(yp_master,_yp_master);
__weak_alias(yp_match,_yp_match);
__weak_alias(yp_next,_yp_next);
__weak_alias(yp_order,_yp_order);
__weak_alias(yp_unbind, _yp_unbind);
__weak_alias(yperr_string,_yperr_string);
__weak_alias(ypprot_err,_ypprot_err);
#endif

void __yp_unbind __P((struct dom_binding *));
int _yp_invalid_domain __P((const char *));

int
_yp_dobind(dom, ypdb)
        const char *dom;
        struct dom_binding **ypdb;
{
        return YPERR_YPBIND;
}

void
__yp_unbind(ypb)
        struct dom_binding *ypb;
{
}

int
yp_bind(dom)
        const char     *dom;
{
        return _yp_dobind(dom, NULL);
}

void
yp_unbind(dom)
        const char     *dom;
{
}

int
yp_get_default_domain(domp)
        char **domp;
{
        *domp = NULL;
        if (_yp_domain[0] == '\0')
                if (getdomainname(_yp_domain, sizeof(_yp_domain)))
                        return YPERR_NODOM;
        *domp = _yp_domain;
        return 0;
}

int
_yp_check(dom)
        char          **dom;
{
        char           *unused;

        if (_yp_domain[0] == '\0')
                if (yp_get_default_domain(&unused))
                        return 0;

        if (dom)
                *dom = _yp_domain;

        if (yp_bind(_yp_domain) == 0)
                return 1;
        return 0;
}

int
_yp_invalid_domain(dom)
        const char *dom;
{
        if (dom == NULL || *dom == '\0')
                return 1;

        if (strlen(dom) > YPMAXDOMAIN)
                return 1;

        if (strchr(dom, '/') != NULL)
                return 1;

        return 0;
}

int
yp_match(indomain, inmap, inkey, inkeylen, outval, outvallen)
        const char     *indomain;
        const char     *inmap;
        const char     *inkey;
        int             inkeylen;
        char          **outval;
        int            *outvallen;
{
        *outval = NULL;
        *outvallen = 0;

        return YPERR_DOMAIN;
}

int
yp_first(indomain, inmap, outkey, outkeylen, outval, outvallen)
        const char     *indomain;
        const char     *inmap;
        char          **outkey;
        int            *outkeylen;
        char          **outval;
        int            *outvallen;
{

        *outkey = *outval = NULL;
        *outkeylen = *outvallen = 0;

        return YPERR_DOMAIN;
}

int
yp_next(indomain, inmap, inkey, inkeylen, outkey, outkeylen, outval, outvallen)
        const char     *indomain;
        const char     *inmap;
        const char     *inkey;
        int             inkeylen;
        char          **outkey;
        int            *outkeylen;
        char          **outval;
        int            *outvallen;
{
        *outkey = *outval = NULL;
        *outkeylen = *outvallen = 0;

        return YPERR_DOMAIN;
}

int
yp_all(indomain, inmap, incallback)
        const char     *indomain;
        const char     *inmap;
        struct ypall_callback *incallback;
{
        return YPERR_DOMAIN;
}

int
yp_order(indomain, inmap, outorder)
        const char     *indomain;
        const char     *inmap;
        int            *outorder;
{
        return YPERR_DOMAIN;
}

int
yp_master(indomain, inmap, outname)
        const char     *indomain;
        const char     *inmap;
        char          **outname;
{
        return YPERR_DOMAIN;
}

int
yp_maplist(indomain, outmaplist)
        const char     *indomain;
        struct ypmaplist **outmaplist;
{
        return YPERR_DOMAIN;
}

char *
yperr_string(incode)
        int             incode;
{
        static char     err[80];

        if (incode == 0)
                return "Success";

        snprintf(err, sizeof(err), "YP FAKE error %d\n", incode);
        return err;
}

int
ypprot_err(incode)
        unsigned int    incode;
{
        switch (incode) {
        case YP_TRUE:   /* success */
                return 0;
        case YP_FALSE:  /* failure */
                return YPERR_YPBIND;
        }
        return YPERR_YPERR;
}