335 lines
9.3 KiB
C
335 lines
9.3 KiB
C
/*
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* PSAPI library
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*
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* Copyright 1998 Patrik Stridvall
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* Copyright 2003 Eric Pouech
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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#include "winnls.h"
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#include "winternl.h"
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#include "psapi.h"
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WINE_DEFAULT_DEBUG_CHANNEL(psapi);
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typedef struct
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{
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HANDLE hProcess;
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PLIST_ENTRY pHead, pCurrent;
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LDR_MODULE LdrModule;
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} MODULE_ITERATOR;
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/***********************************************************************
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* PSAPI_ModuleIteratorInit [internal]
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*
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* Prepares to iterate through the loaded modules of the given process.
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*
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* RETURNS
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* Success: TRUE
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* Failure: FALSE
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*/
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static BOOL PSAPI_ModuleIteratorInit(MODULE_ITERATOR *iter, HANDLE hProcess)
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{
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PROCESS_BASIC_INFORMATION pbi;
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PPEB_LDR_DATA pLdrData;
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NTSTATUS status;
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/* Get address of PEB */
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status = NtQueryInformationProcess(hProcess, ProcessBasicInformation,
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&pbi, sizeof(pbi), NULL);
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if (status != STATUS_SUCCESS)
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{
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SetLastError(RtlNtStatusToDosError(status));
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return FALSE;
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}
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/* Read address of LdrData from PEB */
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if (!ReadProcessMemory(hProcess, &pbi.PebBaseAddress->LdrData,
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&pLdrData, sizeof(pLdrData), NULL))
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return FALSE;
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/* Read address of first module from LdrData */
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if (!ReadProcessMemory(hProcess,
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&pLdrData->InLoadOrderModuleList.Flink,
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&iter->pCurrent, sizeof(iter->pCurrent), NULL))
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return FALSE;
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iter->pHead = &pLdrData->InLoadOrderModuleList;
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iter->hProcess = hProcess;
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return TRUE;
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}
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/***********************************************************************
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* PSAPI_ModuleIteratorNext [internal]
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*
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* Iterates to the next module.
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*
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* RETURNS
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* 1 : Success
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* 0 : No more modules
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* -1 : Failure
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*
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* NOTES
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* Every function which uses this routine suffers from a race condition
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* when a module is unloaded during the enumeration which can cause the
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* function to fail. As there is no way to lock the loader of another
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* process we can't avoid that.
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*/
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static INT PSAPI_ModuleIteratorNext(MODULE_ITERATOR *iter)
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{
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if (iter->pCurrent == iter->pHead)
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return 0;
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if (!ReadProcessMemory(iter->hProcess, CONTAINING_RECORD(iter->pCurrent,
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LDR_MODULE, InLoadOrderModuleList),
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&iter->LdrModule, sizeof(iter->LdrModule), NULL))
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return -1;
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else
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iter->pCurrent = iter->LdrModule.InLoadOrderModuleList.Flink;
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return 1;
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}
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/***********************************************************************
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* PSAPI_GetLdrModule [internal]
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*
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* Reads the LDR_MODULE structure of the given module.
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*
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* RETURNS
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* Success: TRUE
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* Failure: FALSE
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*/
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static BOOL PSAPI_GetLdrModule(HANDLE hProcess, HMODULE hModule,
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LDR_MODULE *pLdrModule)
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{
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MODULE_ITERATOR iter;
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INT ret;
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if (!PSAPI_ModuleIteratorInit(&iter, hProcess))
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return FALSE;
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while ((ret = PSAPI_ModuleIteratorNext(&iter)) > 0)
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/* When hModule is NULL we return the process image - which will be
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* the first module since our iterator uses InLoadOrderModuleList */
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if (!hModule || hModule == iter.LdrModule.BaseAddress)
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{
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*pLdrModule = iter.LdrModule;
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return TRUE;
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}
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if (ret == 0)
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SetLastError(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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/***********************************************************************
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* EnumDeviceDrivers (PSAPI.@)
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*/
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BOOL WINAPI EnumDeviceDrivers(LPVOID *lpImageBase, DWORD cb, LPDWORD lpcbNeeded)
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{
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FIXME("(%p, %d, %p): stub\n", lpImageBase, cb, lpcbNeeded);
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if (lpcbNeeded)
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*lpcbNeeded = 0;
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return TRUE;
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}
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/***********************************************************************
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* EnumPageFilesA (PSAPI.@)
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*/
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BOOL WINAPI EnumPageFilesA( PENUM_PAGE_FILE_CALLBACKA callback, LPVOID context )
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{
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FIXME("(%p, %p) stub\n", callback, context );
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return FALSE;
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}
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/***********************************************************************
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* EnumPageFilesW (PSAPI.@)
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*/
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BOOL WINAPI EnumPageFilesW( PENUM_PAGE_FILE_CALLBACKW callback, LPVOID context )
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{
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FIXME("(%p, %p) stub\n", callback, context );
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return FALSE;
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}
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/***********************************************************************
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* GetDeviceDriverBaseNameA (PSAPI.@)
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*/
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DWORD WINAPI GetDeviceDriverBaseNameA(LPVOID ImageBase, LPSTR lpBaseName,
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DWORD nSize)
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{
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FIXME("(%p, %p, %d): stub\n", ImageBase, lpBaseName, nSize);
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if (lpBaseName && nSize)
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lpBaseName[0] = '\0';
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return 0;
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}
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/***********************************************************************
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* GetDeviceDriverBaseNameW (PSAPI.@)
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*/
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DWORD WINAPI GetDeviceDriverBaseNameW(LPVOID ImageBase, LPWSTR lpBaseName,
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DWORD nSize)
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{
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FIXME("(%p, %p, %d): stub\n", ImageBase, lpBaseName, nSize);
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if (lpBaseName && nSize)
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lpBaseName[0] = '\0';
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return 0;
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}
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/***********************************************************************
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* GetDeviceDriverFileNameA (PSAPI.@)
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*/
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DWORD WINAPI GetDeviceDriverFileNameA(LPVOID ImageBase, LPSTR lpFilename,
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DWORD nSize)
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{
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FIXME("(%p, %p, %d): stub\n", ImageBase, lpFilename, nSize);
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if (lpFilename && nSize)
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lpFilename[0] = '\0';
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return 0;
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}
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/***********************************************************************
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* GetDeviceDriverFileNameW (PSAPI.@)
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*/
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DWORD WINAPI GetDeviceDriverFileNameW(LPVOID ImageBase, LPWSTR lpFilename,
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DWORD nSize)
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{
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FIXME("(%p, %p, %d): stub\n", ImageBase, lpFilename, nSize);
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if (lpFilename && nSize)
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lpFilename[0] = '\0';
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return 0;
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}
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/***********************************************************************
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* GetMappedFileNameA (PSAPI.@)
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*/
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DWORD WINAPI GetMappedFileNameA(HANDLE hProcess, LPVOID lpv, LPSTR lpFilename,
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DWORD nSize)
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{
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FIXME("(%p, %p, %p, %d): stub\n", hProcess, lpv, lpFilename, nSize);
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if (lpFilename && nSize)
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lpFilename[0] = '\0';
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return 0;
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}
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/***********************************************************************
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* GetMappedFileNameW (PSAPI.@)
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*/
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DWORD WINAPI GetMappedFileNameW(HANDLE hProcess, LPVOID lpv, LPWSTR lpFilename,
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DWORD nSize)
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{
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FIXME("(%p, %p, %p, %d): stub\n", hProcess, lpv, lpFilename, nSize);
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if (lpFilename && nSize)
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lpFilename[0] = '\0';
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return 0;
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}
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/***********************************************************************
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* GetModuleInformation (PSAPI.@)
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*/
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BOOL WINAPI GetModuleInformation(HANDLE hProcess, HMODULE hModule,
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LPMODULEINFO lpmodinfo, DWORD cb)
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{
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LDR_MODULE LdrModule;
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if (cb < sizeof(MODULEINFO))
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{
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SetLastError(ERROR_INSUFFICIENT_BUFFER);
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return FALSE;
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}
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if (!PSAPI_GetLdrModule(hProcess, hModule, &LdrModule))
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return FALSE;
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lpmodinfo->lpBaseOfDll = LdrModule.BaseAddress;
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lpmodinfo->SizeOfImage = LdrModule.SizeOfImage;
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lpmodinfo->EntryPoint = LdrModule.EntryPoint;
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return TRUE;
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}
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/***********************************************************************
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* GetPerformanceInfo (PSAPI.@)
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*/
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BOOL WINAPI GetPerformanceInfo( PPERFORMANCE_INFORMATION info, DWORD size )
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{
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NTSTATUS status;
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TRACE( "(%p, %d)\n", info, size );
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status = NtQuerySystemInformation( SystemPerformanceInformation, info, size, NULL );
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if (status)
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{
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SetLastError( RtlNtStatusToDosError( status ) );
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return FALSE;
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}
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return TRUE;
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}
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/***********************************************************************
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* GetWsChanges (PSAPI.@)
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*/
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BOOL WINAPI GetWsChanges( HANDLE process, PPSAPI_WS_WATCH_INFORMATION watchinfo, DWORD size )
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{
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NTSTATUS status;
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TRACE( "(%p, %p, %d)\n", process, watchinfo, size );
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status = NtQueryInformationProcess( process, ProcessWorkingSetWatch, watchinfo, size, NULL );
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if (status)
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{
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SetLastError( RtlNtStatusToDosError( status ) );
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return FALSE;
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}
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return TRUE;
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}
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/***********************************************************************
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* InitializeProcessForWsWatch (PSAPI.@)
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*/
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BOOL WINAPI InitializeProcessForWsWatch(HANDLE hProcess)
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{
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FIXME("(hProcess=%p): stub\n", hProcess);
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return TRUE;
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}
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