HRESULT assembly_get_version(ASSEMBLY *assembly, LPWSTR *version)
{
static const WCHAR format[] = {'%','u','.','%','u','.','%','u','.','%','u',0};
ASSEMBLYTABLE *asmtbl;
LONG offset;
*version = NULL;
offset = assembly->tables[TableFromToken(mdtAssembly)].offset;
if (offset == -1)
return E_FAIL;
asmtbl = assembly_data_offset(assembly, offset);
if (!asmtbl)
return E_FAIL;
*version = HeapAlloc(GetProcessHeap(), 0, sizeof(format) + 4 * strlen("65535") * sizeof(WCHAR));
if (!*version)
return E_OUTOFMEMORY;
sprintfW(*version, format, asmtbl->MajorVersion, asmtbl->MinorVersion,
asmtbl->BuildNumber, asmtbl->RevisionNumber);
return S_OK;
}
HRESULT assembly_get_name(ASSEMBLY *assembly, LPWSTR *name)
{
BYTE *ptr;
LONG offset;
DWORD stridx;
offset = assembly->tables[TableFromToken(mdtAssembly)].offset;
if (offset == -1)
return E_FAIL;
ptr = assembly_data_offset(assembly, offset);
if (!ptr)
return E_FAIL;
ptr += FIELD_OFFSET(ASSEMBLYTABLE, PublicKey) + assembly->blobsz;
if (assembly->stringsz == sizeof(DWORD))
stridx = *(DWORD *)ptr;
else
stridx = *(WORD *)ptr;
*name = assembly_dup_str(assembly, stridx);
if (!*name)
return E_OUTOFMEMORY;
return S_OK;
}
static HRESULT parse_clr_tables(ASSEMBLY *assembly, ULONG offset)
{
DWORD i, count;
ULONG currofs;
ULONGLONG mask;
currofs = offset;
assembly->tableshdr = assembly_data_offset(assembly, currofs);
if (!assembly->tableshdr)
return E_FAIL;
assembly->stringsz = (assembly->tableshdr->HeapOffsetSizes & MD_STRINGS_BIT) ?
sizeof(DWORD) : sizeof(WORD);
assembly->guidsz = (assembly->tableshdr->HeapOffsetSizes & MD_GUIDS_BIT) ?
sizeof(DWORD) : sizeof(WORD);
assembly->blobsz = (assembly->tableshdr->HeapOffsetSizes & MD_BLOBS_BIT) ?
sizeof(DWORD) : sizeof(WORD);
currofs += sizeof(METADATATABLESHDR);
assembly->numrows = assembly_data_offset(assembly, currofs);
if (!assembly->numrows)
return E_FAIL;
memset(assembly->tables, -1, MAX_CLR_TABLES * sizeof(CLRTABLE));
for (i = count = 0, mask = 1; i < MAX_CLR_TABLES; i++, mask <<= 1)
{
if (assembly->tableshdr->MaskValid.QuadPart & mask)
assembly->tables[i].rows = assembly->numrows[count++];
}
assembly->numtables = count;
currofs += assembly->numtables * sizeof(DWORD);
for (i = 0, mask = 1; i < MAX_CLR_TABLES; i++, mask <<= 1)
{
if (assembly->tableshdr->MaskValid.QuadPart & mask)
{
assembly->tables[i].offset = currofs;
currofs += get_table_size(assembly, i) * assembly->tables[i].rows;
}
}
return S_OK;
}
static HRESULT parse_clr_metadata(ASSEMBLY *assembly)
{
METADATASTREAMHDR *streamhdr;
ULONG rva, i, ofs;
LPSTR stream;
HRESULT hr;
DWORD hdrsz;
BYTE *ptr;
hr = parse_metadata_header(assembly, &hdrsz);
if (FAILED(hr))
return hr;
rva = assembly->corhdr->MetaData.VirtualAddress;
ptr = ImageRvaToVa(assembly->nthdr, assembly->data, rva + hdrsz, NULL);
if (!ptr)
return E_FAIL;
for (i = 0; i < assembly->metadatahdr->Streams; i++)
{
streamhdr = (METADATASTREAMHDR *)ptr;
ofs = rva_to_offset(assembly->nthdr, rva + streamhdr->Offset);
ptr += sizeof(METADATASTREAMHDR);
stream = (LPSTR)ptr;
if (!lstrcmpA(stream, "#~"))
{
hr = parse_clr_tables(assembly, ofs);
if (FAILED(hr))
return hr;
}
else if (!lstrcmpA(stream, "#Strings") || !lstrcmpA(stream, "Strings"))
assembly->strings = assembly_data_offset(assembly, ofs);
else if (!lstrcmpA(stream, "#Blob") || !lstrcmpA(stream, "Blob"))
assembly->blobs = assembly_data_offset(assembly, ofs);
ptr += lstrlenA(stream) + 1;
ptr = (BYTE *)(((UINT_PTR)ptr + 3) & ~3); /* align on DWORD boundary */
}
return S_OK;
}
HRESULT assembly_get_external_files(ASSEMBLY *assembly, LPWSTR **files, DWORD *count)
{
LONG offset;
INT i, num_rows;
WCHAR **ret;
BYTE *ptr;
DWORD idx;
*count = 0;
offset = assembly->tables[TableFromToken(mdtFile)].offset;
if (offset == -1)
return S_OK;
ptr = assembly_data_offset(assembly, offset);
if (!ptr)
return S_OK;
num_rows = assembly->tables[TableFromToken(mdtFile)].rows;
if (num_rows <= 0)
return S_OK;
ret = HeapAlloc(GetProcessHeap(), 0, num_rows * sizeof(WCHAR *));
if (!ret)
return E_OUTOFMEMORY;
for (i = 0; i < num_rows; i++)
{
ptr += sizeof(DWORD); /* skip Flags field */
if (assembly->stringsz == sizeof(DWORD))
idx = *(DWORD *)ptr;
else
idx = *(WORD *)ptr;
ret[i] = assembly_dup_str(assembly, idx);
if (!ret[i])
{
for (; i >= 0; i--) HeapFree(GetProcessHeap(), 0, ret[i]);
HeapFree(GetProcessHeap(), 0, ret);
return E_OUTOFMEMORY;
}
ptr += assembly->stringsz; /* skip Name field */
ptr += assembly->blobsz; /* skip Hash field */
}
*count = num_rows;
*files = ret;
return S_OK;
}
HRESULT assembly_get_pubkey_token(ASSEMBLY *assembly, LPWSTR *token)
{
ULONG i, size;
LONG offset;
BYTE *hashdata, *pubkey, *ptr;
HCRYPTPROV crypt;
HCRYPTHASH hash;
BYTE tokbytes[BYTES_PER_TOKEN];
HRESULT hr = E_FAIL;
LPWSTR tok;
DWORD idx;
*token = NULL;
offset = assembly->tables[TableFromToken(mdtAssembly)].offset;
if (offset == -1)
return E_FAIL;
ptr = assembly_data_offset(assembly, offset);
if (!ptr)
return E_FAIL;
ptr += FIELD_OFFSET(ASSEMBLYTABLE, PublicKey);
if (assembly->blobsz == sizeof(DWORD))
idx = *(DWORD *)ptr;
else
idx = *(WORD *)ptr;
pubkey = assembly_get_blob(assembly, idx, &size);
if (!CryptAcquireContextA(&crypt, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT))
return E_FAIL;
if (!CryptCreateHash(crypt, CALG_SHA1, 0, 0, &hash))
return E_FAIL;
if (!CryptHashData(hash, pubkey, size, 0))
return E_FAIL;
size = 0;
if (!CryptGetHashParam(hash, HP_HASHVAL, NULL, &size, 0))
return E_FAIL;
hashdata = HeapAlloc(GetProcessHeap(), 0, size);
if (!hashdata)
{
hr = E_OUTOFMEMORY;
goto done;
}
if (!CryptGetHashParam(hash, HP_HASHVAL, hashdata, &size, 0))
goto done;
for (i = size - 1; i >= size - 8; i--)
tokbytes[size - i - 1] = hashdata[i];
tok = HeapAlloc(GetProcessHeap(), 0, (TOKEN_LENGTH + 1) * sizeof(WCHAR));
if (!tok)
{
hr = E_OUTOFMEMORY;
goto done;
}
token_to_str(tokbytes, tok);
*token = tok;
hr = S_OK;
done:
HeapFree(GetProcessHeap(), 0, hashdata);
CryptDestroyHash(hash);
CryptReleaseContext(crypt, 0);
return hr;
}
