reactos/rosapps/tests/lpc/conport.c

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/* $Id$
*
* reactos/apps/lpc/conport.c
*
* To be run in a real WNT 4.0 system with
* "\SmApiPort" as argument. Do not try to
* connect to "\Windows\ApiPort" since that
* reboots immeditely.
*
* Use Russinovich' HandleEx to verify
* conport.exe owns two unnamed LPC ports:
* the one created by kernel32.dll connecting
* to csrss.exe, and one connected to here.
*
* 19990627 (Emanuele Aliberti)
* Initial implementation.
* 19990704 (EA)
* Dump object's attributes moved in dumpinfo.c.
*/
#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
(STDCALL * ConnectPort)(
OUT PHANDLE PortHandle,
IN PUNICODE_STRING PortName,
IN POBJECT_ATTRIBUTES ObjectAttributes,
IN DWORD Unknown3,
IN DWORD Unknown4,
IN DWORD Unknown5,
IN DWORD Unknown6,
IN ULONG Flags
);
NTSTATUS
(STDCALL * QueryObject)(
IN HANDLE ObjectHandle,
IN CINT ObjectInformationClass,
OUT PVOID ObjectInformation,
IN ULONG Length,
OUT PULONG ResultLength
);
NTSTATUS
(STDCALL * YieldExecution)(VOID);
#define BUF_SIZE 1024
#define MAXARG 1000000
VOID
TryConnectPort(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 =
NULL /*& PortName */;
ObjectAttributes.Attributes =
OBJ_CASE_INSENSITIVE;
ObjectAttributes.SecurityDescriptor =
NULL;
ObjectAttributes.SecurityQualityOfService =
NULL;
/*
* Try to issue a connection request.
*/
Port = 0;
Status = ConnectPort(
& Port, /* & PortHandle */
& PortName, /* & PortName */
& ObjectAttributes, /* & PortAttributes */
NULL, /* & SecurityQos */
NULL, /* & SectionInfo */
NULL, /* & MapInfo */
NULL, /* & MaxMessageSize */
LPC_CONNECT_FLAG5 /* & ConnectInfoLength */
);
if (Status == STATUS_SUCCESS)
{
DumpInfo(
Name,
Status,
"connected",
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(
"Connection to port \"%s\" failed (Status = %08X).\n",
port_name_save,
Status
);
}
main( int argc, char * argv[] )
{
HINSTANCE ntdll;
if (argc != 2)
{
printf("WNT LPC Port Connector\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.NtConnectPort)\n");
ConnectPort = (VOID*) GetProcAddress(
ntdll,
"NtConnectPort"
);
if (ConnectPort == NULL)
{
FreeLibrary(ntdll);
printf("Could not find NTDLL.NtConnectPort\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("TryConnectPort(%s)\n",argv[1]);
TryConnectPort(argv[1]);
printf("Done\n");
return EXIT_SUCCESS;
}
/* EOF */