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Annotation of mstools/samples/rpc/handles/cxhndl/cxhndlc.c, revision 1.1

1.1     ! root        1: /****************************************************************************
        !             2:                          Microsoft RPC Version 1.0
        !             3:                        Copyright Microsoft Corp. 1992
        !             4:                               cxhndl Example
        !             5: 
        !             6:     FILE:      cxhndlc.c
        !             7:     USAGE:     cxhndlc  -n network_address
        !             8:                         -p protocol_sequence
        !             9:                         -e endpoint
        !            10:                         -o options
        !            11:                         -u uuid
        !            12:                         -f filename
        !            13: 
        !            14:     PURPOSE:   Client side of RPC distributed application
        !            15:     FUNCTIONS: main() - binds to server and calls remote procedure
        !            16:     COMMENTS:
        !            17: 
        !            18: ****************************************************************************/
        !            19: #include <stdio.h>
        !            20: #include <string.h>
        !            21: #include <stdlib.h>
        !            22: #include <rpc.h>       // RPC API functions, types
        !            23: #include "cxhndl.h"   // header file generated by MIDL compiler
        !            24: 
        !            25: 
        !            26: #define PURPOSE \
        !            27: "This Microsoft RPC Version 1.0 sample program demonstrates\n\
        !            28: the use of the [context_handle] attribute. For more information\n\
        !            29: about attributes and RPC API functions, see the RPC programming\n\
        !            30: guide and reference.\n\n"
        !            31: 
        !            32: #define BUFSIZE 1024
        !            33: 
        !            34: void Usage(char * pszProgramName)
        !            35: {
        !            36:     fprintf(stderr, "%s", PURPOSE);
        !            37:     fprintf(stderr, "Usage:  %s\n", pszProgramName);
        !            38:     fprintf(stderr, " -p protocol_sequence\n");
        !            39:     fprintf(stderr, " -n network_address\n");
        !            40:     fprintf(stderr, " -e endpoint\n");
        !            41:     fprintf(stderr, " -o options\n");
        !            42:     fprintf(stderr, " -u uuid\n");
        !            43:     fprintf(stderr, " -f filename\n");
        !            44:     exit(1);
        !            45: }
        !            46: 
        !            47: void main(int argc, char **argv)
        !            48: {
        !            49:     RPC_STATUS status;            // returned by RPC API function
        !            50:     PCONTEXT_HANDLE_TYPE phContext = NULL;
        !            51: 
        !            52:     char * pbBuf = NULL;
        !            53:     short cbRead;  /* count of bytes read */
        !            54: 
        !            55:     unsigned char * pszUuid = "12345678-1234-1234-1234-123456789ABC";
        !            56:     unsigned char * pszProtocolSequence = "ncacn_np";
        !            57:     unsigned char * pszNetworkAddress   = NULL;
        !            58:     unsigned char * pszEndpoint        = "\\pipe\\context";
        !            59:     unsigned char * pszOptions          = NULL;
        !            60:     unsigned char * pszStringBinding   = NULL;
        !            61:     unsigned char * pszFileName                = "readme.cxh";
        !            62:     int i;
        !            63: 
        !            64:     // allow the user to override settings with command line switches
        !            65:     for (i = 1; i < argc; i++) {
        !            66:        if ((*argv[i] == '-') || (*argv[i] == '/')) {
        !            67:            switch (tolower(*(argv[i]+1))) {
        !            68:                case 'p':  // protocol sequence
        !            69:                    pszProtocolSequence = argv[++i];
        !            70:                    break;
        !            71:                case 'n':  // network address
        !            72:                    pszNetworkAddress = argv[++i];
        !            73:                    break;
        !            74:                case 'e':
        !            75:                    pszEndpoint = argv[++i];
        !            76:                    break;
        !            77:                case 'o':
        !            78:                    pszOptions = argv[++i];
        !            79:                    break;
        !            80:                case 'u':
        !            81:                    pszUuid = argv[++i];
        !            82:                    break;
        !            83:                case 'f':
        !            84:                    pszFileName = argv[++i];
        !            85:                    break;
        !            86:                case 'h':
        !            87:                case '?':
        !            88:                default:
        !            89:                    Usage(argv[0]);
        !            90:            }
        !            91:        }
        !            92:        else
        !            93:            Usage(argv[0]);
        !            94:     }
        !            95: 
        !            96:     pbBuf = (char *) malloc(BUFSIZE * sizeof(char));
        !            97: 
        !            98: /* Use a convenience function to concatenate the elements of  */
        !            99: /* the string binding into the proper sequence.              */
        !           100: 
        !           101:     status = RpcStringBindingCompose(pszUuid,
        !           102:                                      pszProtocolSequence,
        !           103:                                      pszNetworkAddress,
        !           104:                                      pszEndpoint,
        !           105:                                      pszOptions,
        !           106:                                      &pszStringBinding);
        !           107:     printf("RpcStringBindingCompose returned 0x%x\n", status);
        !           108:     printf("pszStringBinding = %s\n", pszStringBinding);
        !           109:     if (status)
        !           110:        exit(2);
        !           111: 
        !           112: /* Set the binding handle that will be used to bind to the server. */
        !           113: 
        !           114:     status = RpcBindingFromStringBinding(pszStringBinding,
        !           115:                                         &hStarter);
        !           116:     printf("RpcBindingFromStringBinding returned 0x%x\n", status);
        !           117:     if (status)
        !           118:         exit(2);
        !           119: 
        !           120:     printf("Calling the remote procedure RemoteOpen\n");
        !           121:     if (RemoteOpen(&phContext, pszFileName) < 0) {
        !           122:        printf("Unable to open %s\n", pszFileName);
        !           123:        Shutdown();
        !           124:        exit(2);
        !           125:     }
        !           126: 
        !           127:     /* now the context handle also manages the binding */
        !           128: 
        !           129:     status = RpcBindingFree(&hStarter);
        !           130:     printf("RpcBindingFree returned 0x%x\n", status);
        !           131:     if (status)
        !           132:        exit(2);
        !           133: 
        !           134:     printf("Calling the remote procedure RemoteRead\n");
        !           135:     while (RemoteRead(&phContext, pbBuf, &cbRead) > 0) {
        !           136:        for (i = 0; i < cbRead; i++)
        !           137:            putchar(*(pbBuf+i));
        !           138:     }
        !           139: 
        !           140:     printf("Calling the remote procedure RemoteClose\n");
        !           141:     if (RemoteClose(&phContext) < 0 ) {
        !           142:        printf("Close failed on %s\n", pszFileName);
        !           143:        exit(2);
        !           144:     }
        !           145: 
        !           146: /*  The calls to the remote procedures are complete. */
        !           147: /*  Free the string and the binding handle          */
        !           148: 
        !           149: 
        !           150:     status = RpcStringFree(&pszStringBinding); // remote calls done; unbind
        !           151:     printf("RpcStringFree returned 0x%x\n", status);
        !           152:     if (status)
        !           153:        exit(2);
        !           154: 
        !           155:     exit(0);
        !           156: 
        !           157: }
        !           158: 
        !           159: void * MIDL_user_allocate(size_t len)
        !           160: {
        !           161:     return(malloc(len));
        !           162: }
        !           163: 
        !           164: void MIDL_user_free(void * ptr)
        !           165: {
        !           166:     free(ptr);
        !           167: }
        !           168: 
        !           169: /* end cxhndlc.c */

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