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/*
* Copyright (c) 1995, 1996
* Bill Paul <wpaul@ctr.columbia.edu>. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul 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.
*
* ypupdate client-side library function.
*
* Written by Bill Paul <wpaul@ctr.columbia.edu>
* Center for Telecommunications Research
* Columbia University, New York City
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stdlib.h>
#include <rpc/rpc.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>
#include <rpcsvc/ypupdate_prot.h>
#include <rpc/key_prot.h>
#ifndef WINDOW
#define WINDOW (60*60)
#endif
#ifndef TIMEOUT
#define TIMEOUT 300
#endif
int
yp_update(char *domain, char *map, unsigned int ypop, char *key, int keylen,
char *data, int datalen)
{
char *master;
int rval;
unsigned int res;
struct ypupdate_args upargs;
struct ypdelete_args delargs;
CLIENT *clnt;
char netname[MAXNETNAMELEN+1];
des_block des_key;
struct timeval timeout;
/* Get the master server name for 'domain.' */
if ((rval = yp_master(domain, map, &master)))
return(rval);
/* Check that ypupdated is running there. */
if (getrpcport(master, YPU_PROG, YPU_VERS, ypop))
return(YPERR_DOMAIN);
/* Get a handle. */
if ((clnt = clnt_create(master, YPU_PROG, YPU_VERS, "tcp")) == NULL)
return(YPERR_RPC);
/*
* Assemble netname of server.
* NOTE: It's difficult to discern from the documentation, but
* when you make a Secure RPC call, the netname you pass should
* be the netname of the guy on the other side, not your own
* netname. This is how the client side knows what public key
* to use for the initial exchange. Passing your own netname
* only works if the server on the other side is running under
* your UID.
*/
if (!host2netname(netname, master, domain)) {
clnt_destroy(clnt);
return(YPERR_BADARGS);
}
/* Make up a DES session key. */
key_gendes(&des_key);
/* Set up DES authentication. */
if ((clnt->cl_auth = (AUTH *)authdes_create(netname, WINDOW, NULL,
&des_key)) == NULL) {
clnt_destroy(clnt);
return(YPERR_RESRC);
}
/* Set a timeout for clnt_call(). */
timeout.tv_usec = 0;
timeout.tv_sec = TIMEOUT;
/*
* Make the call. Note that we use clnt_call() here rather than
* the rpcgen-erated client stubs. We could use those stubs, but
* then we'd have to do some gymnastics to get at the error
* information to figure out what error code to send back to the
* caller. With clnt_call(), we get the error status returned to
* us right away, and we only have to exert a small amount of
* extra effort.
*/
switch (ypop) {
case YPOP_CHANGE:
upargs.mapname = map;
upargs.key.yp_buf_len = keylen;
upargs.key.yp_buf_val = key;
upargs.datum.yp_buf_len = datalen;
upargs.datum.yp_buf_val = data;
if ((rval = clnt_call(clnt, YPU_CHANGE,
(xdrproc_t)xdr_ypupdate_args, &upargs,
(xdrproc_t)xdr_u_int, &res, timeout)) != RPC_SUCCESS) {
if (rval == RPC_AUTHERROR)
res = YPERR_ACCESS;
else
res = YPERR_RPC;
}
break;
case YPOP_INSERT:
upargs.mapname = map;
upargs.key.yp_buf_len = keylen;
upargs.key.yp_buf_val = key;
upargs.datum.yp_buf_len = datalen;
upargs.datum.yp_buf_val = data;
if ((rval = clnt_call(clnt, YPU_INSERT,
(xdrproc_t)xdr_ypupdate_args, &upargs,
(xdrproc_t)xdr_u_int, &res, timeout)) != RPC_SUCCESS) {
if (rval == RPC_AUTHERROR)
res = YPERR_ACCESS;
else
res = YPERR_RPC;
}
break;
case YPOP_DELETE:
delargs.mapname = map;
delargs.key.yp_buf_len = keylen;
delargs.key.yp_buf_val = key;
if ((rval = clnt_call(clnt, YPU_DELETE,
(xdrproc_t)xdr_ypdelete_args, &delargs,
(xdrproc_t)xdr_u_int, &res, timeout)) != RPC_SUCCESS) {
if (rval == RPC_AUTHERROR)
res = YPERR_ACCESS;
else
res = YPERR_RPC;
}
break;
case YPOP_STORE:
upargs.mapname = map;
upargs.key.yp_buf_len = keylen;
upargs.key.yp_buf_val = key;
upargs.datum.yp_buf_len = datalen;
upargs.datum.yp_buf_val = data;
if ((rval = clnt_call(clnt, YPU_STORE,
(xdrproc_t)xdr_ypupdate_args, &upargs,
(xdrproc_t)xdr_u_int, &res, timeout)) != RPC_SUCCESS) {
if (rval == RPC_AUTHERROR)
res = YPERR_ACCESS;
else
res = YPERR_RPC;
}
break;
default:
res = YPERR_BADARGS;
break;
}
/* All done: tear down the connection. */
auth_destroy(clnt->cl_auth);
clnt_destroy(clnt);
free(master);
return(res);
}
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