tools/libsrpc/rpc_main.c

   1 /*
   2  * Copyright 2008, Google 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
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32
  33 /*
  34  * NaCl simple rpc dispatcher
  35  */
  36
  37 #include "nacl_srpc.h"
  38 #include "nacl_srpc_internal.h"
  39
  40 int __NaClSrpcMain(unsigned int         rpc_num,
  41                    NaClSrpcHandlerDesc* rpc_desc,
  42                    unsigned int         num_rpcs,
  43                    NaClSrpcChannel*     channel,
  44                    struct NaClSrpcArg   **in_args,
  45                    struct NaClSrpcArg   **out_args)
  46 {
  47   const char* entry_format;
  48
  49   if (rpc_num >= num_rpcs) {
  50     return NACL_SRPC_RESULT_BAD_RPC_NUMBER;
  51   }
  52
  53   entry_format = rpc_desc[rpc_num].entry_fmt;
  54   if (!NaClSrpcTypeCheckArgs(entry_format, in_args, out_args)) {
  55     /*
  56      * the service runtime should have perform type checks already,
  57      * and this code should be redundant.
  58      */
  59     return NACL_SRPC_RESULT_INTERNAL;
  60   }
  61
  62   /* TODO convert this to use the proper API. */
  63   return (*rpc_desc[rpc_num].handler)(channel, in_args, out_args);
  64 }