Juan Lang : msisip: Implement MsiSIPGetSignedDataMsg.
Alexandre Julliard
julliard at winehq.org
Fri Aug 1 05:33:54 CDT 2008
Module: wine
Branch: master
Commit: 7c97132cbf1c70fd1f8b419983df3bfa1104c9a7
URL: http://source.winehq.org/git/wine.git/?a=commit;h=7c97132cbf1c70fd1f8b419983df3bfa1104c9a7
Author: Juan Lang <juan.lang at gmail.com>
Date: Thu Jul 31 15:50:18 2008 -0700
msisip: Implement MsiSIPGetSignedDataMsg.
---
dlls/msisip/main.c | 121 +++++++++++++++++++++++++++++++++++++++++++++++
dlls/msisip/msisip.spec | 2 +-
2 files changed, 122 insertions(+), 1 deletions(-)
diff --git a/dlls/msisip/main.c b/dlls/msisip/main.c
index e47c297..cea0398 100644
--- a/dlls/msisip/main.c
+++ b/dlls/msisip/main.c
@@ -97,6 +97,127 @@ HRESULT WINAPI DllUnregisterServer(void)
}
/***********************************************************************
+ * MsiSIPGetSignedDataMsg (MSISIP.@)
+ */
+BOOL WINAPI MsiSIPGetSignedDataMsg(SIP_SUBJECTINFO *pSubjectInfo,
+ DWORD *pdwEncodingType, DWORD dwIndex, DWORD *pcbSignedDataMsg,
+ BYTE *pbSignedDataMsg)
+{
+ static const WCHAR digitalSig[] = { 5,'D','i','g','i','t','a','l',
+ 'S','i','g','n','a','t','u','r','e',0 };
+ BOOL ret = FALSE;
+ IStorage *stg = NULL;
+ HRESULT r;
+ IStream *stm = NULL;
+ BYTE hdr[2], len[sizeof(DWORD)];
+ DWORD count, lenBytes, dataBytes;
+
+ TRACE("(%p %p %d %p %p)\n", pSubjectInfo, pdwEncodingType, dwIndex,
+ pcbSignedDataMsg, pbSignedDataMsg);
+
+ r = StgOpenStorage(pSubjectInfo->pwsFileName, NULL,
+ STGM_DIRECT|STGM_READ|STGM_SHARE_DENY_WRITE, NULL, 0, &stg);
+ if (FAILED(r))
+ {
+ TRACE("couldn't open %s\n", debugstr_w(pSubjectInfo->pwsFileName));
+ goto end;
+ }
+
+ r = IStorage_OpenStream(stg, digitalSig, 0,
+ STGM_READ|STGM_SHARE_EXCLUSIVE, 0, &stm);
+ if (FAILED(r))
+ {
+ TRACE("couldn't find digital signature stream\n");
+ goto freestorage;
+ }
+
+ r = IStream_Read(stm, hdr, sizeof(hdr), &count);
+ if (FAILED(r) || count != sizeof(hdr))
+ goto freestream;
+ if (hdr[0] != 0x30)
+ {
+ WARN("unexpected data in digital sig: 0x%02x%02x\n", hdr[0], hdr[1]);
+ goto freestream;
+ }
+
+ /* Read the asn.1 length from the stream. Only supports definite-length
+ * values, which DER-encoded signatures should be.
+ */
+ if (hdr[1] == 0x80)
+ {
+ WARN("indefinite-length encoding not supported!\n");
+ goto freestream;
+ }
+ else if (hdr[1] & 0x80)
+ {
+ DWORD temp;
+ LPBYTE ptr;
+
+ lenBytes = hdr[1] & 0x7f;
+ if (lenBytes > sizeof(DWORD))
+ {
+ WARN("asn.1 length too long (%d)\n", lenBytes);
+ goto freestream;
+ }
+ r = IStream_Read(stm, len, lenBytes, &count);
+ if (FAILED(r) || count != lenBytes)
+ goto freestream;
+ dataBytes = 0;
+ temp = lenBytes;
+ ptr = len;
+ while (temp--)
+ {
+ dataBytes <<= 8;
+ dataBytes |= *ptr++;
+ }
+ }
+ else
+ {
+ lenBytes = 0;
+ dataBytes = hdr[1];
+ }
+
+ if (!pbSignedDataMsg)
+ {
+ *pcbSignedDataMsg = 2 + lenBytes + dataBytes;
+ ret = TRUE;
+ }
+ else if (*pcbSignedDataMsg < 2 + lenBytes + dataBytes)
+ {
+ SetLastError(ERROR_INSUFFICIENT_BUFFER);
+ *pcbSignedDataMsg = 2 + lenBytes + dataBytes;
+ }
+ else
+ {
+ LPBYTE ptr = pbSignedDataMsg;
+
+ memcpy(ptr, hdr, sizeof(hdr));
+ ptr += sizeof(hdr);
+ if (lenBytes)
+ {
+ memcpy(ptr, len, lenBytes);
+ ptr += lenBytes;
+ }
+ r = IStream_Read(stm, ptr, dataBytes, &count);
+ if (SUCCEEDED(r) && count == dataBytes)
+ {
+ *pdwEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
+ *pcbSignedDataMsg = 2 + lenBytes + dataBytes;
+ ret = TRUE;
+ }
+ }
+
+freestream:
+ IStream_Release(stm);
+freestorage:
+ IStorage_Release(stg);
+end:
+
+ TRACE("returning %d\n", ret);
+ return ret;
+}
+
+/***********************************************************************
* MsiSIPIsMyTypeOfFile (MSISIP.@)
*/
BOOL WINAPI MsiSIPIsMyTypeOfFile(WCHAR *name, GUID *subject)
diff --git a/dlls/msisip/msisip.spec b/dlls/msisip/msisip.spec
index 1e1f444..cfe8292 100644
--- a/dlls/msisip/msisip.spec
+++ b/dlls/msisip/msisip.spec
@@ -1,5 +1,5 @@
5 stdcall MsiSIPIsMyTypeOfFile(wstr ptr)
-6 stub MsiSIPGetSignedDataMsg
+6 stdcall MsiSIPGetSignedDataMsg(ptr ptr long ptr ptr)
7 stub MsiSIPPutSignedDataMsg
8 stub MsiSIPRemoveSignedDataMsg
9 stub MsiSIPCreateIndirectData
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