mirror of
https://github.com/reactos/reactos.git
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205 lines
4.2 KiB
C
205 lines
4.2 KiB
C
/*
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* reactos/apps/lpc/conport.c
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*
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* To be run in a real WNT 4.0 system with
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* "\SmApiPort" as argument. Do not try to
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* connect to "\Windows\ApiPort" since that
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* reboots immeditely.
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*
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* Use Russinovich' HandleEx to verify
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* conport.exe owns two unnamed LPC ports:
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* the one created by kernel32.dll connecting
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* to csrss.exe, and one connected to here.
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*
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* 19990627 (Emanuele Aliberti)
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* Initial implementation.
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* 19990704 (EA)
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* Dump object's attributes moved in dumpinfo.c.
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*/
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#include <windows.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define PROTO_LPC
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#include <ddk/ntddk.h>
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#include "dumpinfo.h"
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#define LPC_CONNECT_FLAG1 0x00000001
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#define LPC_CONNECT_FLAG2 0x00000010
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#define LPC_CONNECT_FLAG3 0x00000100
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#define LPC_CONNECT_FLAG4 0x00001000
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#define LPC_CONNECT_FLAG5 0x00010000
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NTSTATUS
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(WINAPI * ConnectPort)(
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OUT PHANDLE PortHandle,
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IN PUNICODE_STRING PortName,
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IN POBJECT_ATTRIBUTES ObjectAttributes,
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IN DWORD Unknown3,
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IN DWORD Unknown4,
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IN DWORD Unknown5,
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IN DWORD Unknown6,
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IN ULONG Flags
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);
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NTSTATUS
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(WINAPI * QueryObject)(
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IN HANDLE ObjectHandle,
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IN CINT ObjectInformationClass,
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OUT PVOID ObjectInformation,
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IN ULONG Length,
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OUT PULONG ResultLength
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);
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NTSTATUS
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(WINAPI * YieldExecution)(VOID);
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#define BUF_SIZE 1024
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#define MAXARG 1000000
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VOID
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TryConnectPort(char *port_name)
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{
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DWORD Status = 0;
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HANDLE Port = 0;
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int i;
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UNICODE_STRING PortName;
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OBJECT_ATTRIBUTES ObjectAttributes;
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WORD Name [BUF_SIZE] = {0};
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int dwx = 0;
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char * port_name_save = port_name;
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/*
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* Convert the port's name to Unicode.
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*/
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for (
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PortName.Length = 0;
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( *port_name
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&& (PortName.Length < BUF_SIZE)
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);
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)
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{
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Name[PortName.Length++] = (WORD) *port_name++;
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}
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Name[PortName.Length] = 0;
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PortName.Length = PortName.Length * sizeof (WORD);
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PortName.MaximumLength = PortName.Length + sizeof (WORD);
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PortName.Buffer = (PWSTR) Name;
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/*
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* Prepare the port object attributes.
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*/
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ObjectAttributes.Length =
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sizeof (OBJECT_ATTRIBUTES);
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ObjectAttributes.RootDirectory =
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NULL;
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ObjectAttributes.ObjectName =
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NULL /*& PortName */;
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ObjectAttributes.Attributes =
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OBJ_CASE_INSENSITIVE;
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ObjectAttributes.SecurityDescriptor =
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NULL;
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ObjectAttributes.SecurityQualityOfService =
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NULL;
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/*
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* Try to issue a connection request.
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*/
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Port = 0;
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Status = ConnectPort(
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& Port, /* & PortHandle */
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& PortName, /* & PortName */
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& ObjectAttributes, /* & PortAttributes */
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NULL, /* & SecurityQos */
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NULL, /* & SectionInfo */
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NULL, /* & MapInfo */
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NULL, /* & MaxMessageSize */
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LPC_CONNECT_FLAG5 /* & ConnectInfoLength */
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);
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if (Status == STATUS_SUCCESS)
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{
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DumpInfo(
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Name,
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Status,
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"connected",
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Port
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);
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/* Hot waiting */
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for (dwx=0; dwx<MAXARG; ++dwx)
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{
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YieldExecution();
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}
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if (FALSE == CloseHandle(Port))
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{
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printf(
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"Could not close the port handle %08X.\n",
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Port
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);
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}
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return;
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}
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printf(
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"Connection to port \"%s\" failed (Status = %08X).\n",
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port_name_save,
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Status
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);
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}
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main( int argc, char * argv[] )
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{
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HINSTANCE ntdll;
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if (argc != 2)
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{
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printf("WNT LPC Port Connector\n");
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printf("Usage: %s [port_name]\n",argv[0]);
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exit(EXIT_FAILURE);
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}
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printf("LoadLibrary(NTDLL)\n");
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ntdll = LoadLibrary("NTDLL");
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if (ntdll == NULL)
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{
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printf("Could not load NTDLL\n");
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return EXIT_FAILURE;
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}
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printf("GetProcAddress(NTDLL.NtConnectPort)\n");
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ConnectPort = (VOID*) GetProcAddress(
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ntdll,
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"NtConnectPort"
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);
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if (ConnectPort == NULL)
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{
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FreeLibrary(ntdll);
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printf("Could not find NTDLL.NtConnectPort\n");
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return EXIT_FAILURE;
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}
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printf("GetProcAddress(NTDLL.NtQueryObject)\n");
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QueryObject = (VOID*) GetProcAddress(
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ntdll,
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"NtQueryObject"
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);
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if (QueryObject == NULL)
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{
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FreeLibrary(ntdll);
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printf("Could not find NTDLL.NtQueryObject\n");
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return EXIT_FAILURE;
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}
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printf("GetProcAddress(NTDLL.NtYieldExecution)\n");
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YieldExecution = (VOID*) GetProcAddress(
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ntdll,
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"NtYieldExecution"
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);
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if (YieldExecution == NULL)
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{
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FreeLibrary(ntdll);
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printf("Could not find NTDLL.NtYieldExecution\n");
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return EXIT_FAILURE;
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}
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printf("TryConnectPort(%s)\n",argv[1]);
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TryConnectPort(argv[1]);
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printf("Done\n");
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return EXIT_SUCCESS;
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}
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/* EOF */
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