mirror of
https://github.com/reactos/reactos.git
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108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/*
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* PROJECT: ReactOS Services
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: base/applications/sc/sdshow.c
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* PURPOSE: Show a service security descriptor
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* COPYRIGHT: Copyright 2016 Eric Kohl
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*
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*/
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#include "sc.h"
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BOOL SdShow(LPCTSTR ServiceName)
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{
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SC_HANDLE hManager = NULL;
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SC_HANDLE hService = NULL;
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BOOL bResult = TRUE;
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DWORD cbBytesNeeded = 0;
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PSECURITY_DESCRIPTOR pSecurityDescriptor = NULL;
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LPTSTR pStringBuffer = NULL;
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#ifdef SCDBG
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_tprintf(_T("service to show sd - %s\n\n"), ServiceName);
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#endif
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hManager = OpenSCManager(NULL,
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NULL,
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SC_MANAGER_CONNECT);
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if (hManager == NULL)
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{
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_tprintf(_T("[SC] OpenSCManager FAILED %lu:\n\n"), GetLastError());
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bResult = FALSE;
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goto done;
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}
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hService = OpenService(hManager, ServiceName, READ_CONTROL);
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if (hService == NULL)
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{
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_tprintf(_T("[SC] OpenService FAILED %lu:\n\n"), GetLastError());
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bResult = FALSE;
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goto done;
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}
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if (!QueryServiceObjectSecurity(hService,
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DACL_SECURITY_INFORMATION,
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(PSECURITY_DESCRIPTOR)&pSecurityDescriptor,
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sizeof(PSECURITY_DESCRIPTOR),
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&cbBytesNeeded))
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{
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if (cbBytesNeeded == 0)
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{
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_tprintf(_T("[SC] QueryServiceObjectSecurity FAILED %lu:\n\n"), GetLastError());
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bResult = FALSE;
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goto done;
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}
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}
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pSecurityDescriptor = HeapAlloc(GetProcessHeap(), 0, cbBytesNeeded);
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if (pSecurityDescriptor == NULL)
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{
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SetLastError(ERROR_OUTOFMEMORY);
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_tprintf(_T("[SC] HeapAlloc FAILED %lu:\n\n"), GetLastError());
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bResult = FALSE;
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goto done;
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}
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if (!QueryServiceObjectSecurity(hService,
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DACL_SECURITY_INFORMATION,
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pSecurityDescriptor,
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cbBytesNeeded,
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&cbBytesNeeded))
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{
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_tprintf(_T("[SC] QueryServiceObjectSecurity FAILED %lu:\n\n"), GetLastError());
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bResult = FALSE;
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goto done;
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}
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if (!ConvertSecurityDescriptorToStringSecurityDescriptor(pSecurityDescriptor,
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SDDL_REVISION_1,
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DACL_SECURITY_INFORMATION,
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&pStringBuffer,
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NULL))
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{
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_tprintf(_T("[SC] ConvertSecurityDescriptorToStringSecurityDescriptor FAILED %lu:\n\n"), GetLastError());
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bResult = FALSE;
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goto done;
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}
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_tprintf(_T("\n%s\n"), pStringBuffer);
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done:
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if (bResult == FALSE)
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ReportLastError();
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if (pStringBuffer != NULL)
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LocalFree(pStringBuffer);
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if (pSecurityDescriptor != NULL)
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HeapFree(GetProcessHeap(), 0, pSecurityDescriptor);
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if (hService)
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CloseServiceHandle(hService);
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if (hManager)
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CloseServiceHandle(hManager);
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return bResult;
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}
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