CLIENT.C

// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF 
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO 
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A 
// PARTICULAR PURPOSE. 
// 
// Copyright 1993 - 1998 Microsoft Corporation.  All Rights Reserved. 
// 
//  MODULE:   client.c 
// 
//  PURPOSE:  This program is a command line oriented 
//            demonstration of the Simple service sample. 
// 
//  FUNCTIONS: 
//    main(int argc, char **argv); 
// 
//  COMMENTS: 
// 
// 
#include <windows.h> 
#include <stdio.h> 
#include <stdlib.h> 
#include <string.h> 
 
VOID _CRTAPI1 main(int argc, char *argv[]) 
{ 
    char    inbuf[80]; 
    char    outbuf[80]; 
    DWORD   bytesRead; 
    BOOL    ret; 
    LPSTR   lpszPipeName = "\\\\.\\pipe\\simple"; 
    LPSTR   lpszString = "World"; 
    int     ndx; 
 
    // allow user to define pipe name 
    for ( ndx = 1; ndx < argc-1; ndx++ ) 
    { 
        if ( (*argv[ndx] == '-') || (*argv[ndx] == '/') ) 
        { 
            if ( stricmp( "pipe", argv[ndx]+1 ) == 0 ) 
            { 
                lpszPipeName = argv[++ndx]; 
            } 
            else if ( stricmp( "string", argv[ndx]+1 ) == 0 ) 
            { 
                lpszString = argv[++ndx]; 
            } 
            else 
            { 
                printf("usage: client [-pipe <pipename>] [-string <string>]\n"); 
                exit(1); 
            } 
        } 
        else 
        { 
            printf("usage: client [-pipe <pipename>] [-string <string>]\n"); 
            exit(1); 
        } 
 
    } 
 
    strcpy( outbuf, lpszString ); 
 
    ret = CallNamedPipeA(lpszPipeName, 
                         outbuf, sizeof(outbuf), 
                         inbuf, sizeof(inbuf), 
                         &bytesRead, NMPWAIT_WAIT_FOREVER); 
 
    if (!ret) { 
        printf("client: CallNamedPipe failed, GetLastError = %d\n", GetLastError()); 
        exit(1); 
    } 
 
    printf("client: received: %s\n", inbuf); 
}