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Diffstat (limited to 'lib/librpcsvc/yp_update.c')
| -rw-r--r-- | lib/librpcsvc/yp_update.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/lib/librpcsvc/yp_update.c b/lib/librpcsvc/yp_update.c new file mode 100644 index 0000000..ba49c0c --- /dev/null +++ b/lib/librpcsvc/yp_update.c @@ -0,0 +1,204 @@ +/* + * 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 + * + * $FreeBSD$ + */ + +#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 lint +static const char rcsid[] = "$FreeBSD$"; +#endif + +#ifndef WINDOW +#define WINDOW (60*60) +#endif + +#ifndef TIMEOUT +#define TIMEOUT 300 +#endif + +int +yp_update(domain, map, ypop, key, keylen, data, datalen) + 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, xdr_ypupdate_args, + &upargs, 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, xdr_ypupdate_args, + &upargs, 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, xdr_ypdelete_args, + &delargs, 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, xdr_ypupdate_args, + &upargs, 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); +} |
