reactos/dll/3rdparty/libtirpc/src/pmap_rmt.c

   1 /*
   2  * Copyright (c) 2009, Sun Microsystems, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are met:
   7  * - Redistributions of source code must retain the above copyright notice,
   8  *   this list of conditions and the following disclaimer.
   9  * - Redistributions in binary form must reproduce the above copyright notice,
  10  *   this list of conditions and the following disclaimer in the documentation
  11  *   and/or other materials provided with the distribution.
  12  * - Neither the name of Sun Microsystems, Inc. nor the names of its
  13  *   contributors may be used to endorse or promote products derived
  14  *   from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /*
  30  * pmap_rmt.c
  31  * Client interface to pmap rpc service.
  32  * remote call and broadcast service
  33  *
  34  * Copyright (C) 1984, Sun Microsystems, Inc.
  35  */
  36
  37 #include <wintirpc.h>
  38 #include <sys/types.h>
  39 //#include <sys/ioctl.h>
  40 //#include <sys/poll.h>
  41 //#include <sys/socket.h>
  42
  43 //#include <net/if.h>
  44 //#include <netinet/in.h>
  45 //#include <arpa/inet.h>
  46
  47 #include <assert.h>
  48 //#include <err.h>
  49 #include <errno.h>
  50 #include <stdio.h>
  51 #include <string.h>
  52 //#include <unistd.h>
  53
  54 #include <rpc/rpc.h>
  55 #include <rpc/pmap_prot.h>
  56 #include <rpc/pmap_clnt.h>
  57 #include <rpc/pmap_rmt.h>
  58
  59 // For the clnttcp_create function
  60 //#include <clnt_soc.h>
  61
  62
  63 static const struct timeval timeout = { 3, 0 };
  64
  65 /*
  66  * pmapper remote-call-service interface.
  67  * This routine is used to call the pmapper remote call service
  68  * which will look up a service program in the port maps, and then
  69  * remotely call that routine with the given parameters.  This allows
  70  * programs to do a lookup and call in one step.
  71 */
  72 enum clnt_stat
  73 pmap_rmtcall(addr, prog, vers, proc, xdrargs, argsp, xdrres, resp, tout,
  74     port_ptr)
  75         struct sockaddr_in *addr;
  76         u_long prog, vers, proc;
  77         xdrproc_t xdrargs, xdrres;
  78         caddr_t argsp, resp;
  79         struct timeval tout;
  80         u_long *port_ptr;
  81 {
  82         int sock = -1;
  83         CLIENT *client;
  84         struct rmtcallargs a;
  85         struct rmtcallres r;
  86         enum clnt_stat stat;
  87
  88         assert(addr != NULL);
  89         assert(port_ptr != NULL);
  90
  91         addr->sin_port = htons(PMAPPORT);
  92         client = clntudp_create(addr, PMAPPROG, PMAPVERS, timeout, &sock);
  93         if (client != NULL) {
  94                 a.prog = prog;
  95                 a.vers = vers;
  96                 a.proc = proc;
  97                 a.args_ptr = argsp;
  98                 a.xdr_args = xdrargs;
  99                 r.port_ptr = port_ptr;
 100                 r.results_ptr = resp;
 101                 r.xdr_results = xdrres;
 102                 stat = CLNT_CALL(client, (rpcproc_t)PMAPPROC_CALLIT,
 103                     (xdrproc_t)xdr_rmtcall_args, &a, (xdrproc_t)xdr_rmtcallres,
 104                     &r, tout);
 105                 CLNT_DESTROY(client);
 106         } else {
 107                 stat = RPC_FAILED;
 108         }
 109         addr->sin_port = 0;
 110         return (stat);
 111 }
 112
 113
 114 /*
 115  * XDR remote call arguments
 116  * written for XDR_ENCODE direction only
 117  */
 118 bool_t
 119 xdr_rmtcall_args(xdrs, cap)
 120         XDR *xdrs;
 121         struct rmtcallargs *cap;
 122 {
 123         u_int lenposition, argposition, position;
 124
 125         assert(xdrs != NULL);
 126         assert(cap != NULL);
 127
 128         if (xdr_u_long(xdrs, &(cap->prog)) &&
 129             xdr_u_long(xdrs, &(cap->vers)) &&
 130             xdr_u_long(xdrs, &(cap->proc))) {
 131                 lenposition = XDR_GETPOS(xdrs);
 132                 if (! xdr_u_long(xdrs, &(cap->arglen)))
 133                     return (FALSE);
 134                 argposition = XDR_GETPOS(xdrs);
 135                 if (! (*(cap->xdr_args))(xdrs, cap->args_ptr))
 136                     return (FALSE);
 137                 position = XDR_GETPOS(xdrs);
 138                 cap->arglen = (u_long)position - (u_long)argposition;
 139                 XDR_SETPOS(xdrs, lenposition);
 140                 if (! xdr_u_long(xdrs, &(cap->arglen)))
 141                     return (FALSE);
 142                 XDR_SETPOS(xdrs, position);
 143                 return (TRUE);
 144         }
 145         return (FALSE);
 146 }
 147
 148 /*
 149  * XDR remote call results
 150  * written for XDR_DECODE direction only
 151  */
 152 bool_t
 153 xdr_rmtcallres(xdrs, crp)
 154         XDR *xdrs;
 155         struct rmtcallres *crp;
 156 {
 157         caddr_t port_ptr;
 158
 159         assert(xdrs != NULL);
 160         assert(crp != NULL);
 161
 162         port_ptr = (caddr_t)(void *)crp->port_ptr;
 163         if (xdr_reference(xdrs, &port_ptr, sizeof (u_long),
 164             (xdrproc_t)xdr_u_long) && xdr_u_long(xdrs, &crp->resultslen)) {
 165                 crp->port_ptr = (u_long *)(void *)port_ptr;
 166                 return ((*(crp->xdr_results))(xdrs, crp->results_ptr));
 167         }
 168         return (FALSE);
 169 }