mirror of
https://github.com/reactos/reactos.git
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100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/*
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* ReactOS kernel
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* Copyright (C) 2002 ReactOS Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id$
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS text-mode setup
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* FILE: subsys/system/usetup/drivesup.c
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* PURPOSE: Drive support functions
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* PROGRAMMER: Eric Kohl
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*/
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/* INCLUDES *****************************************************************/
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#include "usetup.h"
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ****************************************************************/
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NTSTATUS
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GetSourcePaths(PUNICODE_STRING SourcePath,
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PUNICODE_STRING SourceRootPath,
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PUNICODE_STRING SourceRootDir)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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UNICODE_STRING LinkName;
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UNICODE_STRING SourceName;
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WCHAR SourceBuffer[MAX_PATH] = {L'\0'};
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HANDLE Handle;
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NTSTATUS Status;
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ULONG Length;
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PWCHAR Ptr;
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RtlInitUnicodeString(&LinkName,
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L"\\SystemRoot");
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InitializeObjectAttributes(&ObjectAttributes,
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&LinkName,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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Status = NtOpenSymbolicLinkObject(&Handle,
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SYMBOLIC_LINK_ALL_ACCESS,
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&ObjectAttributes);
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if (!NT_SUCCESS(Status))
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return(Status);
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SourceName.Length = 0;
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SourceName.MaximumLength = MAX_PATH * sizeof(WCHAR);
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SourceName.Buffer = SourceBuffer;
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Status = NtQuerySymbolicLinkObject(Handle,
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&SourceName,
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&Length);
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NtClose(Handle);
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if (NT_SUCCESS(Status))
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{
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RtlCreateUnicodeString(SourcePath,
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SourceName.Buffer);
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/* strip trailing directory */
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Ptr = wcsrchr(SourceName.Buffer, L'\\');
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if (Ptr)
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{
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RtlCreateUnicodeString(SourceRootDir, Ptr);
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*Ptr = 0;
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}
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else
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RtlCreateUnicodeString(SourceRootDir, L"");
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RtlCreateUnicodeString(SourceRootPath,
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SourceName.Buffer);
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}
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NtClose(Handle);
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return(STATUS_SUCCESS);
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}
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/* EOF */
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