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Annotation of mstools/samples/rpc/hello2/client.c, revision 1.1

1.1     ! root        1: /****************************************************************************
        !             2:                        Microsoft RPC Version 1.0 Alpha
        !             3:                                 October 1991
        !             4:                                Hello2 Example
        !             5: 
        !             6:     FILE:       hello2\client.c
        !             7:     USAGE:      client <servername>
        !             8:                 where  <servername> is the name of the server running the
        !             9:                 server side of the distributed application
        !            10:     PURPOSE:    Client side of RPC distributed application hello2
        !            11:     FUNCTIONS:  main() - calls remote procedure HelloProc2
        !            12:     COMMENTS:
        !            13:     This version of the distributed application that prints
        !            14:     "hello, world" on the server features a client that
        !            15:     manages its connection to the server. It uses the binding
        !            16:     handle hRpcHello that is defined in the file hello2.h.
        !            17: 
        !            18: ****************************************************************************/
        !            19: #include <stdio.h>
        !            20: #include <string.h>
        !            21: #include <stdlib.h>
        !            22: #include <rpc.h>       // RPC API functions, types
        !            23: #include "hello2.h"    // RPC data for this interface
        !            24: 
        !            25: #define MAXPATH 300    // arbitrary large size for server, pipe path
        !            26: 
        !            27: void main(int argc, char **argv)
        !            28: {
        !            29:     RPC_STATUS status;             // returned by RPC API function
        !            30:     char * pszRpcPort = "hello2";
        !            31:     char szServerPath[MAXPATH];          // complete path
        !            32: 
        !            33: /*  Select named pipes as the transport type and provide the    */
        !            34: /*  path to the server and named pipe that is used for RPC.     */
        !            35: /*  The client specifies the local pipe name in the form:       */
        !            36: /*     \device\namedpipe\pipename                               */
        !            37: /*  The client specifies the remote pipe name in the form:      */
        !            38: /*     \device\lanmanredirector\servername\pipe\pipename        */
        !            39: /*  In this example, the pipename is "hello2"                   */
        !            40: 
        !            41:     if (argc == 2) {
        !            42:         strcpy(szServerPath, "\\device\\lanmanredirector\\");
        !            43:         strcat(szServerPath, argv[1]);      // servername
        !            44:         strcat(szServerPath, "\\pipe\\");
        !            45:         strcat(szServerPath, pszRpcPort);
        !            46:     }
        !            47:     else {
        !            48:         strcpy(szServerPath, "\\device\\namedpipe\\");
        !            49:         strcat(szServerPath, pszRpcPort);
        !            50:     }
        !            51: 
        !            52:     hello2_ProtocolStack.TransportType = RPC_TRANSPORT_NAMEPIPE;
        !            53:     hello2_ProtocolStack.TransportInfo = szServerPath;
        !            54:     hello2_ProtocolStack.TransportInfoLength = \
        !            55:         strlen(szServerPath) + 1;   // add 1 for terminating null 
        !            56: 
        !            57: /*  Call the Microsoft RPC V1.0 Alpha API function that lets     */
        !            58: /*  the client establish a connection with the server.           */
        !            59: /*  NOTE:  This API function will be replaced in future          */
        !            60: /*  releases by the standard DCE RPC function.                   */
        !            61: 
        !            62:     status = RpcBindToInterface(&hello2_ProtocolStack,
        !            63:                                 0L,
        !            64:                                 &hrpcHello);
        !            65:     if (status) {
        !            66:         printf("RpcBindToInterface returned 0x%x\n", status);
        !            67:         printf("%s length = %d\n", hello2_ProtocolStack.TransportInfo,
        !            68:                 hello2_ProtocolStack.TransportInfoLength);
        !            69:         exit(2);
        !            70:     }
        !            71: 
        !            72:     HelloProc2();     // call the remote procedure
        !            73: 
        !            74:     status = RpcUnbind(hrpcHello);  // remote calls done; unbind
        !            75:     if (status) {
        !            76:         printf("RpcUnbind returned 0x%x\n", status);
        !            77:         exit(2);
        !            78:     }
        !            79:     exit(0);
        !            80: } /* end \hello2\client.c */

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