Juan Lang : crypt32: Partially implement CryptBinaryToStringW.
Alexandre Julliard
julliard at winehq.org
Tue Nov 3 15:37:15 CST 2009
Module: wine
Branch: master
Commit: 2d5ac92d9a6878785158301b90ace6a6d05ad1a5
URL: http://source.winehq.org/git/wine.git/?a=commit;h=2d5ac92d9a6878785158301b90ace6a6d05ad1a5
Author: Juan Lang <juan.lang at gmail.com>
Date: Thu Oct 29 15:13:29 2009 -0700
crypt32: Partially implement CryptBinaryToStringW.
---
dlls/crypt32/base64.c | 194 +++++++++++++++++++++++++++++++++++++++++++++
dlls/crypt32/crypt32.spec | 2 +-
2 files changed, 195 insertions(+), 1 deletions(-)
diff --git a/dlls/crypt32/base64.c b/dlls/crypt32/base64.c
index 17e05d9..d542db1 100644
--- a/dlls/crypt32/base64.c
+++ b/dlls/crypt32/base64.c
@@ -60,6 +60,8 @@ static const char b64[] =
typedef BOOL (*BinaryToStringAFunc)(const BYTE *pbBinary,
DWORD cbBinary, DWORD dwFlags, LPSTR pszString, DWORD *pcchString);
+typedef BOOL (*BinaryToStringWFunc)(const BYTE *pbBinary,
+ DWORD cbBinary, DWORD dwFlags, LPWSTR pszString, DWORD *pcchString);
static BOOL EncodeBinaryToBinaryA(const BYTE *pbBinary,
DWORD cbBinary, DWORD dwFlags, LPSTR pszString, DWORD *pcchString)
@@ -280,6 +282,198 @@ BOOL WINAPI CryptBinaryToStringA(const BYTE *pbBinary,
return encoder(pbBinary, cbBinary, dwFlags, pszString, pcchString);
}
+static LONG encodeBase64W(const BYTE *in_buf, int in_len, LPCWSTR sep,
+ WCHAR* out_buf, DWORD *out_len)
+{
+ int div, i;
+ const BYTE *d = in_buf;
+ int bytes = (in_len*8 + 5)/6, pad_bytes = (bytes % 4) ? 4 - (bytes % 4) : 0;
+ DWORD needed;
+ LPWSTR ptr;
+
+ TRACE("bytes is %d, pad bytes is %d\n", bytes, pad_bytes);
+ needed = bytes + pad_bytes + 1;
+ needed += (needed / 64 + 1) * strlenW(sep);
+
+ if (needed > *out_len)
+ {
+ *out_len = needed;
+ return ERROR_INSUFFICIENT_BUFFER;
+ }
+ else
+ *out_len = needed;
+
+ /* Three bytes of input give 4 chars of output */
+ div = in_len / 3;
+
+ ptr = out_buf;
+ i = 0;
+ while (div > 0)
+ {
+ if (i && i % 64 == 0)
+ {
+ strcpyW(ptr, sep);
+ ptr += strlenW(sep);
+ }
+ /* first char is the first 6 bits of the first byte*/
+ *ptr++ = b64[ ( d[0] >> 2) & 0x3f ];
+ /* second char is the last 2 bits of the first byte and the first 4
+ * bits of the second byte */
+ *ptr++ = b64[ ((d[0] << 4) & 0x30) | (d[1] >> 4 & 0x0f)];
+ /* third char is the last 4 bits of the second byte and the first 2
+ * bits of the third byte */
+ *ptr++ = b64[ ((d[1] << 2) & 0x3c) | (d[2] >> 6 & 0x03)];
+ /* fourth char is the remaining 6 bits of the third byte */
+ *ptr++ = b64[ d[2] & 0x3f];
+ i += 4;
+ d += 3;
+ div--;
+ }
+
+ switch(pad_bytes)
+ {
+ case 1:
+ /* first char is the first 6 bits of the first byte*/
+ *ptr++ = b64[ ( d[0] >> 2) & 0x3f ];
+ /* second char is the last 2 bits of the first byte and the first 4
+ * bits of the second byte */
+ *ptr++ = b64[ ((d[0] << 4) & 0x30) | (d[1] >> 4 & 0x0f)];
+ /* third char is the last 4 bits of the second byte padded with
+ * two zeroes */
+ *ptr++ = b64[ ((d[1] << 2) & 0x3c) ];
+ /* fourth char is a = to indicate one byte of padding */
+ *ptr++ = '=';
+ break;
+ case 2:
+ /* first char is the first 6 bits of the first byte*/
+ *ptr++ = b64[ ( d[0] >> 2) & 0x3f ];
+ /* second char is the last 2 bits of the first byte padded with
+ * four zeroes*/
+ *ptr++ = b64[ ((d[0] << 4) & 0x30)];
+ /* third char is = to indicate padding */
+ *ptr++ = '=';
+ /* fourth char is = to indicate padding */
+ *ptr++ = '=';
+ break;
+ }
+ strcpyW(ptr, sep);
+
+ return ERROR_SUCCESS;
+}
+
+static BOOL BinaryToBase64W(const BYTE *pbBinary,
+ DWORD cbBinary, DWORD dwFlags, LPWSTR pszString, DWORD *pcchString)
+{
+ static const WCHAR crlf[] = { '\r','\n',0 }, lf[] = { '\n',0 };
+ BOOL ret = TRUE;
+ LPCWSTR header = NULL, trailer = NULL, sep = NULL;
+ DWORD charsNeeded;
+
+ if (dwFlags & CRYPT_STRING_NOCR)
+ sep = lf;
+ else
+ sep = crlf;
+ switch (dwFlags & 0x7fffffff)
+ {
+ case CRYPT_STRING_BASE64:
+ /* no header or footer */
+ break;
+ case CRYPT_STRING_BASE64HEADER:
+ header = CERT_HEADER_W;
+ trailer = CERT_TRAILER_W;
+ break;
+ case CRYPT_STRING_BASE64REQUESTHEADER:
+ header = CERT_REQUEST_HEADER_W;
+ trailer = CERT_REQUEST_TRAILER_W;
+ break;
+ case CRYPT_STRING_BASE64X509CRLHEADER:
+ header = X509_HEADER_W;
+ trailer = X509_TRAILER_W;
+ break;
+ }
+
+ charsNeeded = 0;
+ encodeBase64W(pbBinary, cbBinary, sep, NULL, &charsNeeded);
+ charsNeeded += strlenW(sep);
+ if (header)
+ charsNeeded += strlenW(header) + strlenW(sep);
+ if (trailer)
+ charsNeeded += strlenW(trailer) + strlenW(sep);
+ if (charsNeeded <= *pcchString)
+ {
+ LPWSTR ptr = pszString;
+ DWORD size = charsNeeded;
+
+ if (header)
+ {
+ strcpyW(ptr, header);
+ ptr += strlenW(ptr);
+ strcpyW(ptr, sep);
+ ptr += strlenW(sep);
+ }
+ encodeBase64W(pbBinary, cbBinary, sep, ptr, &size);
+ ptr += size - 1;
+ if (trailer)
+ {
+ strcpyW(ptr, trailer);
+ ptr += strlenW(ptr);
+ strcpyW(ptr, sep);
+ ptr += strlenW(sep);
+ }
+ *pcchString = charsNeeded - 1;
+ }
+ else if (pszString)
+ {
+ *pcchString = charsNeeded;
+ SetLastError(ERROR_INSUFFICIENT_BUFFER);
+ ret = FALSE;
+ }
+ else
+ *pcchString = charsNeeded;
+ return ret;
+}
+
+BOOL WINAPI CryptBinaryToStringW(const BYTE *pbBinary,
+ DWORD cbBinary, DWORD dwFlags, LPWSTR pszString, DWORD *pcchString)
+{
+ BinaryToStringWFunc encoder = NULL;
+
+ TRACE("(%p, %d, %08x, %p, %p)\n", pbBinary, cbBinary, dwFlags, pszString,
+ pcchString);
+
+ if (!pbBinary)
+ {
+ SetLastError(ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
+ if (!pcchString)
+ {
+ SetLastError(ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
+
+ switch (dwFlags & 0x7fffffff)
+ {
+ case CRYPT_STRING_BASE64:
+ case CRYPT_STRING_BASE64HEADER:
+ case CRYPT_STRING_BASE64REQUESTHEADER:
+ case CRYPT_STRING_BASE64X509CRLHEADER:
+ encoder = BinaryToBase64W;
+ break;
+ case CRYPT_STRING_BINARY:
+ case CRYPT_STRING_HEX:
+ case CRYPT_STRING_HEXASCII:
+ case CRYPT_STRING_HEXADDR:
+ case CRYPT_STRING_HEXASCIIADDR:
+ FIXME("Unimplemented type %d\n", dwFlags & 0x7fffffff);
+ /* fall through */
+ default:
+ SetLastError(ERROR_INVALID_PARAMETER);
+ return FALSE;
+ }
+ return encoder(pbBinary, cbBinary, dwFlags, pszString, pcchString);
+}
+
static inline BYTE decodeBase64Byte(int c)
{
BYTE ret;
diff --git a/dlls/crypt32/crypt32.spec b/dlls/crypt32/crypt32.spec
index 534bee7..bcab030 100644
--- a/dlls/crypt32/crypt32.spec
+++ b/dlls/crypt32/crypt32.spec
@@ -98,7 +98,7 @@
@ stdcall CertVerifyValidityNesting(ptr ptr)
@ stdcall CreateFileU(wstr long long ptr long long ptr) kernel32.CreateFileW
@ stdcall CryptBinaryToStringA(ptr long long ptr ptr)
-@ stub CryptBinaryToStringW # (ptr long long ptr ptr)
+@ stdcall CryptBinaryToStringW(ptr long long ptr ptr)
@ stdcall CryptStringToBinaryA(str long long ptr ptr ptr ptr)
@ stdcall CryptStringToBinaryW (wstr long long ptr ptr ptr ptr)
@ stdcall CryptAcquireContextU(ptr wstr wstr long long) advapi32.CryptAcquireContextW
More information about the wine-cvs
mailing list