mirror of
https://github.com/reactos/wine.git
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257 lines
7.7 KiB
C
257 lines
7.7 KiB
C
/*
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* Copyright 2008 Juan Lang
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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 "config.h"
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wincrypt.h"
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#include "mssip.h"
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#define COBJMACROS
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#include "objbase.h"
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#include "initguid.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(msisip);
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BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
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{
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TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
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switch (fdwReason)
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{
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case DLL_WINE_PREATTACH:
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return FALSE; /* prefer native version */
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case DLL_PROCESS_ATTACH:
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DisableThreadLibraryCalls(hinstDLL);
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break;
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case DLL_PROCESS_DETACH:
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break;
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default:
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break;
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}
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return TRUE;
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}
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static GUID mySubject = { 0x000c10f1, 0x0000, 0x0000,
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{ 0xc0,0x00,0x00,0x00,0x00,0x00,0x00,0x46 }};
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/***********************************************************************
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* DllRegisterServer (MSISIP.@)
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*/
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HRESULT WINAPI DllRegisterServer(void)
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{
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static WCHAR msisip[] = { 'M','S','I','S','I','P','.','D','L','L',0 };
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static WCHAR getSignedDataMsg[] = { 'M','s','i','S','I','P','G','e','t',
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'S','i','g','n','e','d','D','a','t','a','M','s','g',0 };
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static WCHAR putSignedDataMsg[] = { 'M','s','i','S','I','P','P','u','t',
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'S','i','g','n','e','d','D','a','t','a','M','s','g',0 };
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static WCHAR createIndirectData[] = { 'M','s','i','S','I','P',
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'C','r','e','a','t','e','I','n','d','i','r','e','c','t','D','a','t','a',
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0 };
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static WCHAR verifyIndirectData[] = { 'M','s','i','S','I','P',
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'V','e','r','i','f','y','I','n','d','i','r','e','c','t','D','a','t','a',
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0 };
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static WCHAR removeSignedDataMsg[] = { 'M','s','i','S','I','P','R','e','m',
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'o','v','e','S','i','g','n','e','d','D','a','t','a','M','s','g', 0 };
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static WCHAR isMyTypeOfFile[] = { 'M','s','i','S','I','P',
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'I','s','M','y','T','y','p','e','O','f','F','i','l','e',0 };
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SIP_ADD_NEWPROVIDER prov;
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memset(&prov, 0, sizeof(prov));
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prov.cbStruct = sizeof(prov);
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prov.pwszDLLFileName = msisip;
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prov.pgSubject = &mySubject;
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prov.pwszGetFuncName = getSignedDataMsg;
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prov.pwszPutFuncName = putSignedDataMsg;
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prov.pwszCreateFuncName = createIndirectData;
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prov.pwszVerifyFuncName = verifyIndirectData;
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prov.pwszRemoveFuncName = removeSignedDataMsg;
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prov.pwszIsFunctionNameFmt2 = isMyTypeOfFile;
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return CryptSIPAddProvider(&prov) ? S_OK : S_FALSE;
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}
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/***********************************************************************
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* DllUnregisterServer (MSISIP.@)
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*/
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HRESULT WINAPI DllUnregisterServer(void)
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{
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CryptSIPRemoveProvider(&mySubject);
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return S_OK;
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}
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/***********************************************************************
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* MsiSIPGetSignedDataMsg (MSISIP.@)
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*/
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BOOL WINAPI MsiSIPGetSignedDataMsg(SIP_SUBJECTINFO *pSubjectInfo,
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DWORD *pdwEncodingType, DWORD dwIndex, DWORD *pcbSignedDataMsg,
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BYTE *pbSignedDataMsg)
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{
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static const WCHAR digitalSig[] = { 5,'D','i','g','i','t','a','l',
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'S','i','g','n','a','t','u','r','e',0 };
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BOOL ret = FALSE;
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IStorage *stg = NULL;
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HRESULT r;
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IStream *stm = NULL;
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BYTE hdr[2], len[sizeof(DWORD)];
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DWORD count, lenBytes, dataBytes;
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TRACE("(%p %p %d %p %p)\n", pSubjectInfo, pdwEncodingType, dwIndex,
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pcbSignedDataMsg, pbSignedDataMsg);
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r = StgOpenStorage(pSubjectInfo->pwsFileName, NULL,
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STGM_DIRECT|STGM_READ|STGM_SHARE_DENY_WRITE, NULL, 0, &stg);
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if (FAILED(r))
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{
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TRACE("couldn't open %s\n", debugstr_w(pSubjectInfo->pwsFileName));
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goto end;
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}
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r = IStorage_OpenStream(stg, digitalSig, 0,
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STGM_READ|STGM_SHARE_EXCLUSIVE, 0, &stm);
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if (FAILED(r))
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{
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TRACE("couldn't find digital signature stream\n");
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goto freestorage;
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}
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r = IStream_Read(stm, hdr, sizeof(hdr), &count);
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if (FAILED(r) || count != sizeof(hdr))
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goto freestream;
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if (hdr[0] != 0x30)
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{
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WARN("unexpected data in digital sig: 0x%02x%02x\n", hdr[0], hdr[1]);
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goto freestream;
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}
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/* Read the asn.1 length from the stream. Only supports definite-length
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* values, which DER-encoded signatures should be.
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*/
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if (hdr[1] == 0x80)
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{
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WARN("indefinite-length encoding not supported!\n");
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goto freestream;
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}
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else if (hdr[1] & 0x80)
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{
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DWORD temp;
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LPBYTE ptr;
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lenBytes = hdr[1] & 0x7f;
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if (lenBytes > sizeof(DWORD))
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{
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WARN("asn.1 length too long (%d)\n", lenBytes);
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goto freestream;
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}
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r = IStream_Read(stm, len, lenBytes, &count);
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if (FAILED(r) || count != lenBytes)
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goto freestream;
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dataBytes = 0;
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temp = lenBytes;
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ptr = len;
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while (temp--)
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{
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dataBytes <<= 8;
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dataBytes |= *ptr++;
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}
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}
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else
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{
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lenBytes = 0;
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dataBytes = hdr[1];
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}
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if (!pbSignedDataMsg)
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{
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*pcbSignedDataMsg = 2 + lenBytes + dataBytes;
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ret = TRUE;
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}
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else if (*pcbSignedDataMsg < 2 + lenBytes + dataBytes)
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{
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SetLastError(ERROR_INSUFFICIENT_BUFFER);
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*pcbSignedDataMsg = 2 + lenBytes + dataBytes;
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}
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else
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{
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LPBYTE ptr = pbSignedDataMsg;
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memcpy(ptr, hdr, sizeof(hdr));
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ptr += sizeof(hdr);
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if (lenBytes)
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{
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memcpy(ptr, len, lenBytes);
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ptr += lenBytes;
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}
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r = IStream_Read(stm, ptr, dataBytes, &count);
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if (SUCCEEDED(r) && count == dataBytes)
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{
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*pdwEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
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*pcbSignedDataMsg = 2 + lenBytes + dataBytes;
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ret = TRUE;
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}
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}
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freestream:
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IStream_Release(stm);
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freestorage:
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IStorage_Release(stg);
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end:
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TRACE("returning %d\n", ret);
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return ret;
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}
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DEFINE_GUID(CLSID_MsiTransform, 0x000c1082,0x0000,0x0000,0xc0,0x00,0x00,0x00,0x00,0x00,0x00,0x46);
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DEFINE_GUID(CLSID_MsiDatabase, 0x000c1084,0x0000,0x0000,0xc0,0x00,0x00,0x00,0x00,0x00,0x00,0x46);
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DEFINE_GUID(CLSID_MsiPatch, 0x000c1086,0x0000,0x0000,0xc0,0x00,0x00,0x00,0x00,0x00,0x00,0x46);
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/***********************************************************************
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* MsiSIPIsMyTypeOfFile (MSISIP.@)
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*/
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BOOL WINAPI MsiSIPIsMyTypeOfFile(WCHAR *name, GUID *subject)
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{
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BOOL ret = FALSE;
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IStorage *stg = NULL;
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HRESULT r;
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TRACE("(%s, %p)\n", debugstr_w(name), subject);
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r = StgOpenStorage(name, NULL, STGM_DIRECT|STGM_READ|STGM_SHARE_DENY_WRITE,
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NULL, 0, &stg);
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if (SUCCEEDED(r))
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{
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STATSTG stat;
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r = IStorage_Stat(stg, &stat, STATFLAG_NONAME);
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if (SUCCEEDED(r))
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{
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if (IsEqualGUID(&stat.clsid, &CLSID_MsiDatabase) ||
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IsEqualGUID(&stat.clsid, &CLSID_MsiPatch) ||
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IsEqualGUID(&stat.clsid, &CLSID_MsiTransform))
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{
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ret = TRUE;
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*subject = mySubject;
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}
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}
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IStorage_Release(stg);
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}
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return ret;
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}
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