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- /****************************************************************************
- Microsoft RPC Version 2.0
- Copyright Microsoft Corp. 1992, 1993, 1994- 1996
- Doctor Example
-
- FILE: doctorc.c
-
- USAGE: doctorc -n network_address
- -p protocol_sequence
- -e endpoint
- -o options
-
- PURPOSE: Client side of RPC distributed application
-
- FUNCTIONS: main() - binds to server and calls remote procedure
-
- COMMENTS: This version of the distributed application prints
- strings from the Doctor server. Doctor is an Eliza-like
- personal therapist program that works by simple
- pattern-matching.
-
- ****************************************************************************/
-
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <ctype.h>
- #include "doctor.h" // header file generated by MIDL compiler
-
- #define PURPOSE \
- "This Microsoft RPC Version 2.0 sample program demonstrates\n\
- the use of the [string] and [size_is] attributes. For more\n\
- information about attributes and RPC API functions, see the\n\
- RPC programming guide and reference.\n\n"
-
- #define GREETING \
- "The doctor is in.\n\
- I am at your service; just tell me anything that troubles\n\
- or concerns you. Please end your sentences with a period,\n\
- a question mark, or an exclamation point, and then press\n\
- the RETURN or ENTER key. When you are ready to quit our\n\
- session, just enter \"bye\" and press RETURN or ENTER.\n\n\
- What is your name? >"
-
- #define FAREWELL \
- "I hope I have been of some service to you.\n\
- Let's get together again some time.\n\n"
-
-
- void Usage(char * pszProgramName)
- {
- fprintf(stderr, "%s", PURPOSE);
- fprintf(stderr, "Usage: %s\n", pszProgramName);
- fprintf(stderr, " -p protocol_sequence\n");
- fprintf(stderr, " -n network_address\n");
- fprintf(stderr, " -e endpoint\n");
- fprintf(stderr, " -o options\n");
- exit(1);
- }
-
- void _CRTAPI1 main(int argc, char **argv)
- {
- RPC_STATUS status; // returned by RPC API function
- unsigned char pszName[STRSIZE]; // patient name
- unsigned char achIn[STRSIZE]; // patient input
-
- unsigned char * pszUuid = NULL;
- unsigned char * pszProtocolSequence = "ncacn_np";
- unsigned char * pszNetworkAddress = NULL;
- unsigned char * pszEndpoint = "\\pipe\\doctor";
- unsigned char * pszOptions = NULL;
- unsigned char * pszStringBinding = NULL;
- int i;
-
- /* allow the user to override settings with command line switches */
- for (i = 1; i < argc; i++) {
- if ((*argv[i] == '-') || (*argv[i] == '/')) {
- switch (tolower(*(argv[i]+1))) {
- case 'p': // protocol sequence
- pszProtocolSequence = argv[++i];
- break;
- case 'n': // network address
- pszNetworkAddress = argv[++i];
- break;
- case 'e':
- pszEndpoint = argv[++i];
- break;
- case 'o':
- pszOptions = argv[++i];
- break;
- case 'h':
- case '?':
- default:
- Usage(argv[0]);
- }
- }
- else
- Usage(argv[0]);
- }
-
- /* Use a convenience function to concatenate the elements of */
- /* the string binding into the proper sequence. */
- status = RpcStringBindingCompose(pszUuid,
- pszProtocolSequence,
- pszNetworkAddress,
- pszEndpoint,
- pszOptions,
- &pszStringBinding);
- if (status) {
- printf("RpcStringBindingCompose returned 0x%x\n", status);
- printf("pszStringBinding = %s\n", pszStringBinding);
- exit(status);
- }
-
- /* Set the binding handle that will be used to bind to the server. */
- status = RpcBindingFromStringBinding(pszStringBinding,
- &doctor_IfHandle);
- if (status) {
- printf("RpcBindingFromStringBinding returned 0x%x\n", status);
- exit(status);
- }
-
- /* RPC is now initialized. Call remote procedures as if */
- /* they were local procedures. */
-
- /* The doctor program consists of patient statements and doctor */
- /* responses. The patient string is transmitted to the server, */
- /* and all processing is performed on the server. */
-
- printf("%s", GREETING);
- gets(pszName);
- printf("\n%s>", pszName);
-
- while (gets(achIn)) {
- if (strncmp(achIn, "bye", 3) == 0) // end of session?
- break;
- RpcTryExcept {
- Analyze(&achIn[0]);
- }
- RpcExcept(1) {
- printf("Runtime reported exception %ld\n", RpcExceptionCode() );
- break;
- }
- RpcEndExcept
-
- printf("%s%s>", achIn, pszName); // no, continue
- }
-
- RpcTryExcept {
- Shutdown(); // yes, shutdown the server
- }
- RpcExcept(1) {
- printf("Runtime reported exception %ld\n", RpcExceptionCode() );
- }
- RpcEndExcept
-
- /* The calls to the remote procedure are complete. */
- /* Free the binding handle. */
- status = RpcBindingFree(&doctor_IfHandle); // remote calls done; unbind
- if (status) {
- printf("RpcBindingFree returned 0x%x\n", status);
- exit(status);
- }
-
- printf("%s", FAREWELL);
-
- exit(0);
-
- } // end main()
-
-
- /*********************************************************************/
- /* MIDL allocate and free */
- /*********************************************************************/
-
- void __RPC_FAR * __RPC_USER midl_user_allocate(size_t len)
- {
- return(malloc(len));
- }
-
- void __RPC_USER midl_user_free(void __RPC_FAR * ptr)
- {
- free(ptr);
- }
-
- /* end file doctorc.c */
-