Juan Lang : crypt32: Explicitly pass array pointer when decoding name constraints' permitted subtrees rather than assuming a particular alignment.
Alexandre Julliard
julliard at winehq.org
Thu Oct 15 08:54:31 CDT 2009
Module: wine
Branch: master
Commit: ab1376ad6c8aec546b81c8f4ffb2df96315e88fb
URL: http://source.winehq.org/git/wine.git/?a=commit;h=ab1376ad6c8aec546b81c8f4ffb2df96315e88fb
Author: Juan Lang <juan.lang at gmail.com>
Date: Wed Oct 14 12:49:13 2009 -0700
crypt32: Explicitly pass array pointer when decoding name constraints' permitted subtrees rather than assuming a particular alignment.
---
dlls/crypt32/decode.c | 39 ++++++++++++++++++++++++++++++++++++++-
1 files changed, 38 insertions(+), 1 deletions(-)
diff --git a/dlls/crypt32/decode.c b/dlls/crypt32/decode.c
index 02f700e..084b149 100644
--- a/dlls/crypt32/decode.c
+++ b/dlls/crypt32/decode.c
@@ -5163,6 +5163,41 @@ static BOOL CRYPT_AsnDecodeSubtree(const BYTE *pbEncoded,
return ret;
}
+static BOOL CRYPT_AsnDecodePermittedSubtree(const BYTE *pbEncoded,
+ DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, DWORD *pcbStructInfo,
+ DWORD *pcbDecoded)
+{
+ BOOL ret = TRUE;
+ struct AsnArrayDescriptor arrayDesc = { 0,
+ CRYPT_AsnDecodeSubtree, sizeof(CERT_GENERAL_SUBTREE), TRUE,
+ offsetof(CERT_GENERAL_SUBTREE, Base.u.pwszURL) };
+ DWORD bytesNeeded;
+
+ TRACE("%p, %d, %08x, %p, %d, %p\n", pbEncoded, cbEncoded, dwFlags,
+ pvStructInfo, *pcbStructInfo, pcbDecoded);
+
+ if ((ret = CRYPT_AsnDecodeArrayNoAlloc(&arrayDesc, pbEncoded, cbEncoded,
+ NULL, NULL, &bytesNeeded, pcbDecoded)))
+ {
+ bytesNeeded += MEMBERSIZE(CERT_NAME_CONSTRAINTS_INFO,
+ cPermittedSubtree, cExcludedSubtree);
+ if (!pvStructInfo)
+ *pcbStructInfo = bytesNeeded;
+ else if ((ret = CRYPT_DecodeEnsureSpace(0, NULL, pvStructInfo,
+ pcbStructInfo, bytesNeeded)))
+ {
+ CERT_NAME_CONSTRAINTS_INFO *info = (CERT_NAME_CONSTRAINTS_INFO *)
+ ((BYTE *)pvStructInfo -
+ offsetof(CERT_NAME_CONSTRAINTS_INFO, cPermittedSubtree));
+
+ ret = CRYPT_AsnDecodeArrayNoAlloc(&arrayDesc, pbEncoded, cbEncoded,
+ &info->cPermittedSubtree, info->rgPermittedSubtree, &bytesNeeded,
+ pcbDecoded);
+ }
+ }
+ return ret;
+}
+
static BOOL CRYPT_AsnDecodeSubtreeArray(const BYTE *pbEncoded,
DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, DWORD *pcbStructInfo,
DWORD *pcbDecoded)
@@ -5197,7 +5232,9 @@ static BOOL WINAPI CRYPT_AsnDecodeNameConstraints(DWORD dwCertEncodingType,
struct AsnDecodeSequenceItem items[] = {
{ ASN_CONTEXT | ASN_CONSTRUCTOR | 0,
offsetof(CERT_NAME_CONSTRAINTS_INFO, cPermittedSubtree),
- CRYPT_AsnDecodeSubtreeArray, sizeof(struct GenericArray), TRUE, TRUE,
+ CRYPT_AsnDecodePermittedSubtree,
+ MEMBERSIZE(CERT_NAME_CONSTRAINTS_INFO, cPermittedSubtree,
+ cExcludedSubtree), TRUE, TRUE,
offsetof(CERT_NAME_CONSTRAINTS_INFO, rgPermittedSubtree), 0 },
{ ASN_CONTEXT | ASN_CONSTRUCTOR | 1,
offsetof(CERT_NAME_CONSTRAINTS_INFO, cExcludedSubtree),
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