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crypt32: Explicitly pass array pointer when decoding CMS message certs rather than assuming a particular alignment.

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This commit is contained in:
Juan Lang 2009-10-14 12:48:03 -07:00 committed by Alexandre Julliard
parent 65296a476d
commit 8c52850102
1 changed files with 34 additions and 2 deletions
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36
dlls/crypt32/decode.c
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@ -5346,6 +5346,38 @@ static BOOL WINAPI CRYPT_AsnDecodePKCSSignerInfo(DWORD dwCertEncodingType,
return ret;
}
static BOOL CRYPT_AsnDecodeCMSCertEncoded(const BYTE *pbEncoded,
DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, DWORD *pcbStructInfo,
DWORD *pcbDecoded)
{
BOOL ret;
struct AsnArrayDescriptor arrayDesc = { 0, CRYPT_AsnDecodeCopyBytes,
sizeof(CRYPT_DER_BLOB), TRUE, offsetof(CRYPT_DER_BLOB, pbData) };
DWORD bytesNeeded;
TRACE("%p, %d, %08x, %p, %d, %p\n", pbEncoded, cbEncoded, dwFlags,
pvStructInfo, pvStructInfo ? *pcbStructInfo : 0, pcbDecoded);
if ((ret = CRYPT_AsnDecodeArrayNoAlloc(&arrayDesc, pbEncoded, cbEncoded,
NULL, NULL, &bytesNeeded, pcbDecoded)))
{
bytesNeeded += MEMBERSIZE(CRYPT_SIGNED_INFO, cCertEncoded, cCrlEncoded);
if (!pvStructInfo)
*pcbStructInfo = bytesNeeded;
else if ((ret = CRYPT_DecodeEnsureSpace(0, NULL, pvStructInfo,
pcbStructInfo, bytesNeeded)))
{
CRYPT_SIGNED_INFO *info = (CRYPT_SIGNED_INFO *)
((BYTE *)pvStructInfo - offsetof(CRYPT_SIGNED_INFO, cCertEncoded));
ret = CRYPT_AsnDecodeArrayNoAlloc(&arrayDesc, pbEncoded, cbEncoded,
&info->cCertEncoded, info->rgCertEncoded, &bytesNeeded,
pcbDecoded);
}
}
return ret;
}
static BOOL CRYPT_AsnDecodeCMSSignerId(const BYTE *pbEncoded,
DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, DWORD *pcbStructInfo,
DWORD *pcbDecoded)
@ -5504,8 +5536,8 @@ BOOL CRYPT_AsnDecodeCMSSignedInfo(const BYTE *pbEncoded, DWORD cbEncoded,
CRYPT_AsnDecodePKCSContentInfoInternal, sizeof(CRYPT_CONTENT_INFO),
FALSE, TRUE, offsetof(CRYPT_SIGNED_INFO, content.pszObjId), 0 },
{ ASN_CONSTRUCTOR | ASN_CONTEXT | 0,
offsetof(CRYPT_SIGNED_INFO, cCertEncoded),
CRYPT_DecodeDERArray, sizeof(struct GenericArray), TRUE, TRUE,
offsetof(CRYPT_SIGNED_INFO, cCertEncoded), CRYPT_AsnDecodeCMSCertEncoded,
MEMBERSIZE(CRYPT_SIGNED_INFO, cCertEncoded, cCrlEncoded), TRUE, TRUE,
offsetof(CRYPT_SIGNED_INFO, rgCertEncoded), 0 },
{ ASN_CONSTRUCTOR | ASN_CONTEXT | 1,
offsetof(CRYPT_SIGNED_INFO, cCrlEncoded), CRYPT_DecodeDERArray,