| /* |
| * Copyright (c) 2009, Sun Microsystems, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * - Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * - 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. |
| * - Neither the name of Sun Microsystems, Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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. |
| */ |
| |
| /* |
| * pmap_rmt.c |
| * Client interface to pmap rpc service. |
| * remote call and broadcast service |
| * |
| * Copyright (C) 1984, Sun Microsystems, Inc. |
| */ |
| |
| #include <config.h> |
| #include <sys/types.h> |
| #include <sys/ioctl.h> |
| #include <sys/poll.h> |
| #include <sys/socket.h> |
| |
| #include <net/if.h> |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| |
| #include <assert.h> |
| #include <err.h> |
| #include <errno.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <rpc/rpc.h> |
| #include <rpc/pmap_prot.h> |
| #include <rpc/pmap_clnt.h> |
| #include <rpc/pmap_rmt.h> |
| |
| /* For the clnttcp_create function |
| * #include <clnt_soc.h> */ |
| |
| static const struct timeval timeout = { 3, 0 }; |
| |
| /* |
| * pmapper remote-call-service interface. |
| * This routine is used to call the pmapper remote call service |
| * which will look up a service program in the port maps, and then |
| * remotely call that routine with the given parameters. This allows |
| * programs to do a lookup and call in one step. |
| */ |
| enum clnt_stat |
| pmap_rmtcall(struct sockaddr_in *addr, u_long prog, u_long vers, |
| u_long proc, xdrproc_t xdrargs, caddr_t argsp, |
| xdrproc_t xdrres, caddr_t resp, struct timeval tout, |
| u_long *port_ptr) |
| { |
| int sock = -1; |
| CLIENT *client; |
| AUTH *auth; |
| struct rmtcallargs a; |
| struct rmtcallres r; |
| enum clnt_stat stat; |
| |
| assert(addr != NULL); |
| assert(port_ptr != NULL); |
| |
| addr->sin_port = htons(PMAPPORT); |
| client = clntudp_ncreate(addr, PMAPPROG, PMAPVERS, timeout, &sock); |
| if (client != NULL) { |
| auth = authnone_create(); |
| a.prog = prog; |
| a.vers = vers; |
| a.proc = proc; |
| a.args_ptr = argsp; |
| a.xdr_args = xdrargs; |
| r.port_ptr = port_ptr; |
| r.results_ptr = resp; |
| r.xdr_results = xdrres; |
| stat = |
| CLNT_CALL(client, auth, (rpcproc_t) PMAPPROC_CALLIT, |
| (xdrproc_t) xdr_rmtcall_args, &a, |
| (xdrproc_t) xdr_rmtcallres, &r, tout); |
| CLNT_DESTROY(client); |
| } else { |
| stat = RPC_FAILED; |
| } |
| addr->sin_port = 0; |
| return (stat); |
| } |
| |
| /* |
| * XDR remote call arguments |
| * written for XDR_ENCODE direction only |
| */ |
| bool |
| xdr_rmtcall_args(XDR *xdrs, struct rmtcallargs *cap) |
| { |
| u_int lenposition, argposition, position; |
| |
| assert(xdrs != NULL); |
| assert(cap != NULL); |
| |
| if (xdr_u_long(xdrs, &(cap->prog)) && xdr_u_long(xdrs, &(cap->vers)) |
| && xdr_u_long(xdrs, &(cap->proc))) { |
| lenposition = XDR_GETPOS(xdrs); |
| if (!xdr_u_long(xdrs, &(cap->arglen))) |
| return (false); |
| argposition = XDR_GETPOS(xdrs); |
| if (!(*(cap->xdr_args)) (xdrs, cap->args_ptr)) |
| return (false); |
| position = XDR_GETPOS(xdrs); |
| cap->arglen = (u_long) position - (u_long) argposition; |
| XDR_SETPOS(xdrs, lenposition); |
| if (!xdr_u_long(xdrs, &(cap->arglen))) |
| return (false); |
| XDR_SETPOS(xdrs, position); |
| return (true); |
| } |
| return (false); |
| } |
| |
| /* |
| * XDR remote call results |
| * written for XDR_DECODE direction only |
| */ |
| bool |
| xdr_rmtcallres(XDR *xdrs, struct rmtcallres *crp) |
| { |
| caddr_t port_ptr; |
| |
| assert(xdrs != NULL); |
| assert(crp != NULL); |
| |
| port_ptr = (caddr_t) (void *)crp->port_ptr; |
| if (xdr_reference |
| (xdrs, &port_ptr, sizeof(u_long), (xdrproc_t) xdr_u_long) |
| && xdr_u_long(xdrs, &crp->resultslen)) { |
| crp->port_ptr = (u_long *) (void *)port_ptr; |
| return ((*(crp->xdr_results)) (xdrs, crp->results_ptr)); |
| } |
| return (false); |
| } |