[PATCH] crypt32: Add support for CRYPT_STRING_HEX to CryptBinaryToStringW.
This is a resend, is there anything that could be improved to make this patch accepted? Signed-off-by: Dmitry Timoshkov <dmitry(a)baikal.ru> --- dlls/crypt32/base64.c | 79 ++++++++++++++++++++++++- dlls/crypt32/tests/base64.c | 113 +++++++++++++++++++++++++++++++++++- 2 files changed, 189 insertions(+), 3 deletions(-) diff --git a/dlls/crypt32/base64.c b/dlls/crypt32/base64.c index 1fd4dc136e..2ffb247180 100644 --- a/dlls/crypt32/base64.c +++ b/dlls/crypt32/base64.c @@ -460,7 +460,7 @@ static BOOL BinaryToBase64W(const BYTE *pbBinary, return ret; } -static BOOL BinaryToHexW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, DWORD *nstr) +static BOOL BinaryToHexRawW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, DWORD *nstr) { static const WCHAR hex[] = L"0123456789abcdef"; DWORD needed; @@ -506,6 +506,79 @@ static BOOL BinaryToHexW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, D return TRUE; } +static BOOL binary_to_hexW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, DWORD *nstr) +{ + static const WCHAR hex[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'}; + DWORD needed, i; + + needed = nbin * 3; /* spaces + terminating \0 */ + + if (flags & CRYPT_STRING_NOCR) + { + needed += (nbin + 7) / 16; /* space every 16 characters */ + needed += 1; /* terminating \n */ + } + else if (!(flags & CRYPT_STRING_NOCRLF)) + { + needed += (nbin + 7) / 16; /* space every 16 characters */ + needed += nbin / 16 + 1; /* LF every 16 characters + terminating \r */ + + if (nbin % 16) + needed += 1; /* terminating \n */ + } + + if (!str) + { + *nstr = needed; + return TRUE; + } + + if (needed > *nstr) + { + SetLastError(ERROR_MORE_DATA); + return FALSE; + } + + for (i = 0; i < nbin; i++) + { + *str++ = hex[(bin[i] >> 4) & 0xf]; + *str++ = hex[bin[i] & 0xf]; + + if (i >= nbin - 1) break; + + if (i && !(flags & CRYPT_STRING_NOCRLF)) + { + if (i >= 15 && !((i + 1) % 16)) + { + if (flags & CRYPT_STRING_NOCR) + *str++ = '\n'; + else + { + *str++ = '\r'; + *str++ = '\n'; + } + continue; + } + else if (i >= 7 && !((i + 1) % 8)) + *str++ = ' '; + } + + *str++ = ' '; + } + + if (flags & CRYPT_STRING_NOCR) + *str++ = '\n'; + else if (!(flags & CRYPT_STRING_NOCRLF)) + { + *str++ = '\r'; + *str++ = '\n'; + } + + *str = 0; + *nstr = needed - 1; + return TRUE; +} + BOOL WINAPI CryptBinaryToStringW(const BYTE *pbBinary, DWORD cbBinary, DWORD dwFlags, LPWSTR pszString, DWORD *pcchString) { @@ -537,9 +610,11 @@ BOOL WINAPI CryptBinaryToStringW(const BYTE *pbBinary, encoder = BinaryToBase64W; break; case CRYPT_STRING_HEXRAW: - encoder = BinaryToHexW; + encoder = BinaryToHexRawW; break; case CRYPT_STRING_HEX: + encoder = binary_to_hexW; + break; case CRYPT_STRING_HEXASCII: case CRYPT_STRING_HEXADDR: case CRYPT_STRING_HEXASCIIADDR: diff --git a/dlls/crypt32/tests/base64.c b/dlls/crypt32/tests/base64.c index a48f0a5c44..a17267c702 100644 --- a/dlls/crypt32/tests/base64.c +++ b/dlls/crypt32/tests/base64.c @@ -236,12 +236,36 @@ static void encode_compare_base64_W(const BYTE *toEncode, DWORD toEncodeLen, DWO heap_free(trailerW); } +static DWORD binary_to_hex_len(DWORD binary_len, DWORD flags) +{ + DWORD strLen2; + + strLen2 = binary_len * 3; /* spaces + terminating \0 */ + + if (flags & CRYPT_STRING_NOCR) + { + strLen2 += (binary_len + 7) / 16; /* space every 16 characters */ + strLen2 += 1; /* terminating \n */ + } + else if (!(flags & CRYPT_STRING_NOCRLF)) + { + strLen2 += (binary_len + 7) / 16; /* space every 16 characters */ + strLen2 += binary_len / 16 + 1; /* LF every 16 characters + terminating \r */ + + if (binary_len % 16) + strLen2 += 1; /* terminating \n */ + } + + return strLen2; +} + static void test_CryptBinaryToString(void) { static const DWORD flags[] = { 0, CRYPT_STRING_NOCR, CRYPT_STRING_NOCRLF }; + static const DWORD sizes[] = { 3, 4, 7, 8, 12, 15, 16, 17, 256 }; static const WCHAR hexdig[] = L"0123456789abcdef"; BYTE input[256 * sizeof(WCHAR)]; - DWORD strLen, strLen2, i, j; + DWORD strLen, strLen2, i, j, k; WCHAR *hex, *cmp, *ptr; BOOL ret; @@ -444,6 +468,93 @@ static void test_CryptBinaryToString(void) heap_free(hex); heap_free(cmp); } + + for (k = 0; k < ARRAY_SIZE(sizes); k++) + for (i = 0; i < ARRAY_SIZE(flags); i++) + { + strLen = 0; + ret = CryptBinaryToStringW(input, sizes[k], CRYPT_STRING_HEX | flags[i], NULL, &strLen); + ok(ret, "CryptBinaryToStringW failed: %d\n", GetLastError()); + ok(strLen > 0, "Unexpected string length.\n"); + + strLen = ~0; + ret = CryptBinaryToStringW(input, sizes[k], CRYPT_STRING_HEX | flags[i], NULL, &strLen); + ok(ret, "CryptBinaryToStringW failed: %d\n", GetLastError()); + strLen2 = binary_to_hex_len(sizes[k], CRYPT_STRING_HEX | flags[i]); + ok(strLen == strLen2, "%u: Expected length %d, got %d\n", i, strLen2, strLen); + + hex = heap_alloc(strLen * sizeof(WCHAR) + 256); + memset(hex, 0xcc, strLen * sizeof(WCHAR)); + + ptr = cmp = heap_alloc(strLen * sizeof(WCHAR) + 256); + for (j = 0; j < sizes[k]; j++) + { + *ptr++ = hexdig[(input[j] >> 4) & 0xf]; + *ptr++ = hexdig[input[j] & 0xf]; + + if (j >= sizes[k] - 1) break; + + if (j && !(flags[i] & CRYPT_STRING_NOCRLF)) + { + + if (j >= 15 && !((j + 1) % 16)) + { + if (flags[i] & CRYPT_STRING_NOCR) + { + *ptr++ = '\n'; + } + else + { + *ptr++ = '\r'; + *ptr++ = '\n'; + } + continue; + } + else if (j >= 7 && !((j + 1) % 8)) + *ptr++ = ' '; + } + + *ptr++ = ' '; + } + + if (flags[i] & CRYPT_STRING_NOCR) + { + *ptr++ = '\n'; + } + else if (!(flags[i] & CRYPT_STRING_NOCRLF)) + { + *ptr++ = '\r'; + *ptr++ = '\n'; + } + *ptr++ = 0; + + ret = CryptBinaryToStringW(input, sizes[k], CRYPT_STRING_HEX | flags[i], hex, &strLen); + ok(ret, "CryptBinaryToStringW failed: %d\n", GetLastError()); + strLen2--; + ok(strLen == strLen2, "%u: Expected length %d, got %d\n", i, strLen, strLen2); + ok(!memcmp(hex, cmp, strLen * sizeof(WCHAR)), "%u: got %s\n", i, wine_dbgstr_wn(hex, strLen)); + + /* adjusts size if buffer too big */ + strLen *= 2; + ret = CryptBinaryToStringW(input, sizes[k], CRYPT_STRING_HEX | flags[i], hex, &strLen); + ok(ret, "CryptBinaryToStringW failed: %d\n", GetLastError()); + ok(strLen == strLen2, "%u: Expected length %d, got %d\n", i, strLen, strLen2); + + /* no writes if buffer too small */ + strLen /= 2; + strLen2 /= 2; + memset(hex, 0xcc, strLen * sizeof(WCHAR)); + memset(cmp, 0xcc, strLen * sizeof(WCHAR)); + SetLastError(0xdeadbeef); + ret = CryptBinaryToStringW(input, sizes[k], CRYPT_STRING_HEX | flags[i], hex, &strLen); + ok(!ret && GetLastError() == ERROR_MORE_DATA,"Expected ERROR_MORE_DATA, got ret=%d le=%u\n", + ret, GetLastError()); + ok(strLen == strLen2, "%u: Expected length %d, got %d\n", i, strLen, strLen2); + ok(!memcmp(hex, cmp, strLen * sizeof(WCHAR)), "%u: got %s\n", i, wine_dbgstr_wn(hex, strLen)); + + heap_free(hex); + heap_free(cmp); + } } static void decodeAndCompareBase64_A(LPCSTR toDecode, LPCSTR header, -- 2.29.2
On Wed, Dec 2, 2020 at 6:56 AM Dmitry Timoshkov <dmitry(a)baikal.ru> wrote:
+static BOOL BinaryToHexRawW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, DWORD *nstr) { static const WCHAR hex[] = L"0123456789abcdef"; DWORD needed; @@ -506,6 +506,79 @@ static BOOL BinaryToHexW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, D return TRUE; }
+static BOOL binary_to_hexW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, DWORD *nstr) +{ + static const WCHAR hex[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
This can be an L-string now. In fact, you can just move the declaration from BinaryToHexRawW outside of the function and use it in both BinaryToHexRawW and binary_to_hexW. -Alex
Alex Henrie <alexhenrie24(a)gmail.com> wrote:
On Wed, Dec 2, 2020 at 6:56 AM Dmitry Timoshkov <dmitry(a)baikal.ru> wrote:
+static BOOL BinaryToHexRawW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, DWORD *nstr) { static const WCHAR hex[] = L"0123456789abcdef"; DWORD needed; @@ -506,6 +506,79 @@ static BOOL BinaryToHexW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, D return TRUE; }
+static BOOL binary_to_hexW(const BYTE *bin, DWORD nbin, DWORD flags, LPWSTR str, DWORD *nstr) +{ + static const WCHAR hex[] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
This can be an L-string now. In fact, you can just move the declaration from BinaryToHexRawW outside of the function and use it in both BinaryToHexRawW and binary_to_hexW.
Thanks for the suggestion, I missed this during resend. However there must be something else that prevented this patch to be accepted, since conversion to using wine-char string literals happend after this patch was sent first time. If there are no other requests (Alexandre?) I'll resubmit with this change. -- Dmitry.
participants (2)
-
Alex Henrie -
Dmitry Timoshkov