creport.c

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/*
 * reactos/apps/lpc/creport.c
 *
 * To be run in a real WNT 4.0 system to
 * create an LPC named port.
 *
 * Use Russinovich' HandleEx to verify
 * creport.exe owns the named LPC port
 * you asked to create.
 */
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#define PROTO_LPC
#include <ddk/ntddk.h>
#include "dumpinfo.h"

#define LPC_CONNECT_FLAG1 0x00000001
#define LPC_CONNECT_FLAG2 0x00000010
#define LPC_CONNECT_FLAG3 0x00000100
#define LPC_CONNECT_FLAG4 0x00001000
#define LPC_CONNECT_FLAG5 0x00010000

NTSTATUS
(WINAPI * CreatePort)(
    /*OUT   PHANDLE         PortHandle,*/
    PVOID   Buffer,
    IN  POBJECT_ATTRIBUTES  PortAttributes  OPTIONAL,
    IN  ACCESS_MASK     DesiredAccess,
    IN  DWORD           Unknown3,
    IN  ULONG           Flags
    );

NTSTATUS
(WINAPI * QueryObject)(
    IN  HANDLE  ObjectHandle,
    IN  CINT    ObjectInformationClass,
    OUT PVOID   ObjectInformation,
    IN  ULONG   Length,
    OUT PULONG  ResultLength
    );

NTSTATUS
(WINAPI * YieldExecution)(VOID);

#define BUF_SIZE 1024
#define MAXARG   5000000


VOID
TryCreatePort(char *port_name)
{
    DWORD           Status = 0;
    HANDLE          Port = 0;
    int         i;
    UNICODE_STRING      PortName;
    OBJECT_ATTRIBUTES   ObjectAttributes;
    WORD            Name [BUF_SIZE] = {0};
    int         dwx = 0;
    char            * port_name_save = port_name;

    /*
     * Convert the port's name to Unicode.
     */
    for (
        PortName.Length = 0;
        (   *port_name
            && (PortName.Length < BUF_SIZE)
            );
        )
    {
        Name[PortName.Length++] = (WORD) *port_name++;
    }
    Name[PortName.Length] = 0;

    PortName.Length = PortName.Length * sizeof (WORD);
    PortName.MaximumLength = PortName.Length + sizeof (WORD);
    PortName.Buffer = (PWSTR) Name;
    /*
     * Prepare the port object attributes.
     */
    ObjectAttributes.Length =
        sizeof (OBJECT_ATTRIBUTES);
    ObjectAttributes.RootDirectory =
        NULL;
    ObjectAttributes.ObjectName =
        & PortName;
    ObjectAttributes.Attributes =
        0; //OBJ_CASE_INSENSITIVE --> STATUS_INVALID_PARAMETER ==> case sensitive!;
    ObjectAttributes.SecurityDescriptor =
        NULL;
    ObjectAttributes.SecurityQualityOfService =
        NULL;
    /*
     * Try to issue a connection request.
     */
    Port = 0;
    Status = CreatePort(
            & Port,
            & ObjectAttributes,
            0, /* ACCESS_MASK? */
            0, /* Unknown3 */
            LPC_CONNECT_FLAG5
            );
    if (Status == STATUS_SUCCESS)
    {
        DumpInfo(
            Name,
            Status,
            "created",
            Port
            );
        /* Hot waiting */
        for (dwx=0; dwx<MAXARG; ++dwx)
        {
            YieldExecution();
        }
        if (FALSE == CloseHandle(Port))
        {
            printf(
                "Could not close the port handle %08X.\n",
                Port
                );
        }
        return;
    }
    printf(
        "Creating port \"%s\" failed (Status = %08X).\n",
        port_name_save,
        Status
        );
}


main( int argc, char * argv[] )
{
    HINSTANCE ntdll;

    if (argc != 2)
    {
        printf("WNT LPC Port Creator\n");
        printf("Usage: %s [port_name]\n",argv[0]);
        exit(EXIT_FAILURE);
    }
    printf("LoadLibrary(NTDLL)\n");
    ntdll = LoadLibrary("NTDLL");
    if (ntdll == NULL)
    {
        printf("Could not load NTDLL\n");
        return EXIT_FAILURE;
    }
    printf("GetProcAddress(NTDLL.NtCreatePort)\n");
    CreatePort = (VOID*) GetProcAddress(
                    ntdll,
                    "NtCreatePort"
                    );
    if (CreatePort == NULL)
    {
        FreeLibrary(ntdll);
        printf("Could not find NTDLL.NtCreatePort\n");
        return EXIT_FAILURE;
    }
    printf("GetProcAddress(NTDLL.NtQueryObject)\n");
    QueryObject = (VOID*) GetProcAddress(
                    ntdll,
                    "NtQueryObject"
                    );
    if (QueryObject == NULL)
    {
        FreeLibrary(ntdll);
        printf("Could not find NTDLL.NtQueryObject\n");
        return EXIT_FAILURE;
    }
    printf("GetProcAddress(NTDLL.NtYieldExecution)\n");
    YieldExecution = (VOID*) GetProcAddress(
                    ntdll,
                    "NtYieldExecution"
                    );
    if (YieldExecution == NULL)
    {
        FreeLibrary(ntdll);
        printf("Could not find NTDLL.NtYieldExecution\n");
        return EXIT_FAILURE;
    }
    printf("TryCreatePort(%s)\n",argv[1]);
    TryCreatePort(argv[1]);
    printf("Done\n");
    return EXIT_SUCCESS;
}

/* EOF */