mirror of
https://github.com/reactos/wine.git
synced 2024-12-05 10:17:57 +00:00
580 lines
16 KiB
C
580 lines
16 KiB
C
/*
|
|
* base64 encoder/decoder
|
|
*
|
|
* Copyright 2005 by Kai Blin
|
|
* Copyright 2006 Juan Lang
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include <stdarg.h>
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "winerror.h"
|
|
#include "wincrypt.h"
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(crypt);
|
|
|
|
#define CERT_HEADER "-----BEGIN CERTIFICATE-----"
|
|
#define CERT_TRAILER "-----END CERTIFICATE-----"
|
|
#define CERT_REQUEST_HEADER "-----BEGIN NEW CERTIFICATE REQUEST-----"
|
|
#define CERT_REQUEST_TRAILER "-----END NEW CERTIFICATE REQUEST-----"
|
|
#define X509_HEADER "-----BEGIN X509 CRL-----"
|
|
#define X509_TRAILER "-----END X509 CRL-----"
|
|
|
|
static const char b64[] =
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
|
|
|
typedef BOOL (*BinaryToStringAFunc)(const BYTE *pbBinary,
|
|
DWORD cbBinary, DWORD dwFlags, LPSTR pszString, DWORD *pcchString);
|
|
|
|
static BOOL EncodeBinaryToBinaryA(const BYTE *pbBinary,
|
|
DWORD cbBinary, DWORD dwFlags, LPSTR pszString, DWORD *pcchString)
|
|
{
|
|
BOOL ret = TRUE;
|
|
|
|
if (*pcchString < cbBinary)
|
|
{
|
|
if (!pszString)
|
|
*pcchString = cbBinary;
|
|
else
|
|
{
|
|
SetLastError(ERROR_INSUFFICIENT_BUFFER);
|
|
*pcchString = cbBinary;
|
|
ret = FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (cbBinary)
|
|
memcpy(pszString, pbBinary, cbBinary);
|
|
*pcchString = cbBinary;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static LONG encodeBase64A(const BYTE *in_buf, int in_len, LPCSTR sep,
|
|
char* 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;
|
|
LPSTR ptr;
|
|
|
|
TRACE("bytes is %d, pad bytes is %d\n", bytes, pad_bytes);
|
|
needed = bytes + pad_bytes + 1;
|
|
needed += (needed / 64 + 1) * strlen(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)
|
|
{
|
|
strcpy(ptr, sep);
|
|
ptr += strlen(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;
|
|
}
|
|
strcpy(ptr, sep);
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
static BOOL BinaryToBase64A(const BYTE *pbBinary,
|
|
DWORD cbBinary, DWORD dwFlags, LPSTR pszString, DWORD *pcchString)
|
|
{
|
|
static const char crlf[] = "\r\n", lf[] = "\n";
|
|
BOOL ret = TRUE;
|
|
LPCSTR 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;
|
|
trailer = CERT_TRAILER;
|
|
break;
|
|
case CRYPT_STRING_BASE64REQUESTHEADER:
|
|
header = CERT_REQUEST_HEADER;
|
|
trailer = CERT_REQUEST_TRAILER;
|
|
break;
|
|
case CRYPT_STRING_BASE64X509CRLHEADER:
|
|
header = X509_HEADER;
|
|
trailer = X509_TRAILER;
|
|
break;
|
|
}
|
|
|
|
charsNeeded = 0;
|
|
encodeBase64A(pbBinary, cbBinary, sep, NULL, &charsNeeded);
|
|
charsNeeded += strlen(sep);
|
|
if (header)
|
|
charsNeeded += strlen(header) + strlen(sep);
|
|
if (trailer)
|
|
charsNeeded += strlen(trailer) + strlen(sep);
|
|
if (charsNeeded <= *pcchString)
|
|
{
|
|
LPSTR ptr = pszString;
|
|
DWORD size = charsNeeded;
|
|
|
|
if (header)
|
|
{
|
|
strcpy(ptr, header);
|
|
ptr += strlen(ptr);
|
|
strcpy(ptr, sep);
|
|
ptr += strlen(sep);
|
|
}
|
|
encodeBase64A(pbBinary, cbBinary, sep, ptr, &size);
|
|
ptr += size - 1;
|
|
if (trailer)
|
|
{
|
|
strcpy(ptr, trailer);
|
|
ptr += strlen(ptr);
|
|
strcpy(ptr, sep);
|
|
ptr += strlen(sep);
|
|
}
|
|
*pcchString = charsNeeded - 1;
|
|
}
|
|
else if (pszString)
|
|
{
|
|
*pcchString = charsNeeded;
|
|
SetLastError(ERROR_INSUFFICIENT_BUFFER);
|
|
ret = FALSE;
|
|
}
|
|
else
|
|
*pcchString = charsNeeded;
|
|
return ret;
|
|
}
|
|
|
|
BOOL WINAPI CryptBinaryToStringA(const BYTE *pbBinary,
|
|
DWORD cbBinary, DWORD dwFlags, LPSTR pszString, DWORD *pcchString)
|
|
{
|
|
BinaryToStringAFunc 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_BINARY:
|
|
encoder = EncodeBinaryToBinaryA;
|
|
break;
|
|
case CRYPT_STRING_BASE64:
|
|
case CRYPT_STRING_BASE64HEADER:
|
|
case CRYPT_STRING_BASE64REQUESTHEADER:
|
|
case CRYPT_STRING_BASE64X509CRLHEADER:
|
|
encoder = BinaryToBase64A;
|
|
break;
|
|
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(char c)
|
|
{
|
|
BYTE ret;
|
|
|
|
if (c >= 'A' && c <= 'Z')
|
|
ret = c - 'A';
|
|
else if (c >= 'a' && c <= 'z')
|
|
ret = c - 'a' + 26;
|
|
else if (c >= '0' && c <= '9')
|
|
ret = c - '0' + 52;
|
|
else if (c == '+')
|
|
ret = 62;
|
|
else if (c == '/')
|
|
ret = 63;
|
|
else
|
|
ret = 64;
|
|
return ret;
|
|
}
|
|
|
|
static LONG decodeBase64Block(const char *in_buf, int in_len,
|
|
const char **nextBlock, PBYTE out_buf, DWORD *out_len)
|
|
{
|
|
int len = in_len, i;
|
|
const char *d = in_buf;
|
|
int ip0, ip1, ip2, ip3;
|
|
|
|
if (len < 4)
|
|
return ERROR_INVALID_DATA;
|
|
|
|
i = 0;
|
|
if (d[2] == '=')
|
|
{
|
|
if ((ip0 = decodeBase64Byte(d[0])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
if ((ip1 = decodeBase64Byte(d[1])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
|
|
if (out_buf)
|
|
out_buf[i] = (ip0 << 2) | (ip1 >> 4);
|
|
i++;
|
|
}
|
|
else if (d[3] == '=')
|
|
{
|
|
if ((ip0 = decodeBase64Byte(d[0])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
if ((ip1 = decodeBase64Byte(d[1])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
if ((ip2 = decodeBase64Byte(d[2])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
|
|
if (out_buf)
|
|
{
|
|
out_buf[i + 0] = (ip0 << 2) | (ip1 >> 4);
|
|
out_buf[i + 1] = (ip1 << 4) | (ip2 >> 2);
|
|
}
|
|
i += 2;
|
|
}
|
|
else
|
|
{
|
|
if ((ip0 = decodeBase64Byte(d[0])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
if ((ip1 = decodeBase64Byte(d[1])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
if ((ip2 = decodeBase64Byte(d[2])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
if ((ip3 = decodeBase64Byte(d[3])) > 63)
|
|
return ERROR_INVALID_DATA;
|
|
|
|
if (out_buf)
|
|
{
|
|
out_buf[i + 0] = (ip0 << 2) | (ip1 >> 4);
|
|
out_buf[i + 1] = (ip1 << 4) | (ip2 >> 2);
|
|
out_buf[i + 2] = (ip2 << 6) | ip3;
|
|
}
|
|
i += 3;
|
|
}
|
|
if (len >= 6 && d[4] == '\r' && d[5] == '\n')
|
|
*nextBlock = d + 6;
|
|
else if (len >= 5 && d[4] == '\n')
|
|
*nextBlock = d + 5;
|
|
else if (len >= 4 && d[4])
|
|
*nextBlock = d + 4;
|
|
else
|
|
*nextBlock = NULL;
|
|
*out_len = i;
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
/* Unlike CryptStringToBinaryA, cchString is guaranteed to be the length of the
|
|
* string to convert.
|
|
*/
|
|
typedef LONG (*StringToBinaryAFunc)(LPCSTR pszString, DWORD cchString,
|
|
BYTE *pbBinary, DWORD *pcbBinary, DWORD *pdwSkip, DWORD *pdwFlags);
|
|
|
|
static LONG Base64ToBinaryA(LPCSTR pszString, DWORD cchString,
|
|
BYTE *pbBinary, DWORD *pcbBinary, DWORD *pdwSkip, DWORD *pdwFlags)
|
|
{
|
|
LONG ret = ERROR_SUCCESS;
|
|
const char *nextBlock;
|
|
DWORD outLen = 0;
|
|
|
|
nextBlock = pszString;
|
|
while (nextBlock && !ret)
|
|
{
|
|
DWORD len = 0;
|
|
|
|
ret = decodeBase64Block(nextBlock, cchString - (nextBlock - pszString),
|
|
&nextBlock, pbBinary ? pbBinary + outLen : NULL, &len);
|
|
if (!ret)
|
|
outLen += len;
|
|
if (cchString - (nextBlock - pszString) <= 0)
|
|
nextBlock = NULL;
|
|
}
|
|
*pcbBinary = outLen;
|
|
if (!ret)
|
|
{
|
|
if (pdwSkip)
|
|
*pdwSkip = 0;
|
|
if (pdwFlags)
|
|
*pdwFlags = CRYPT_STRING_BASE64;
|
|
}
|
|
else if (ret == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
if (!pbBinary)
|
|
ret = ERROR_SUCCESS;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static LONG Base64WithHeaderAndTrailerToBinaryA(LPCSTR pszString,
|
|
DWORD cchString, LPCSTR header, LPCSTR trailer, BYTE *pbBinary,
|
|
DWORD *pcbBinary, DWORD *pdwSkip)
|
|
{
|
|
LONG ret;
|
|
LPCSTR ptr;
|
|
|
|
if (cchString > strlen(header) + strlen(trailer)
|
|
&& (ptr = strstr(pszString, header)) != NULL)
|
|
{
|
|
LPCSTR trailerSpot = pszString + cchString - strlen(trailer);
|
|
|
|
if (pszString[cchString - 1] == '\n')
|
|
{
|
|
cchString--;
|
|
trailerSpot--;
|
|
}
|
|
if (pszString[cchString - 1] == '\r')
|
|
{
|
|
cchString--;
|
|
trailerSpot--;
|
|
}
|
|
if (!strncmp(trailerSpot, trailer, strlen(trailer)))
|
|
{
|
|
if (pdwSkip)
|
|
*pdwSkip = ptr - pszString;
|
|
ptr += strlen(header);
|
|
if (*ptr == '\r') ptr++;
|
|
if (*ptr == '\n') ptr++;
|
|
cchString -= ptr - pszString + strlen(trailer);
|
|
ret = Base64ToBinaryA(ptr, cchString, pbBinary, pcbBinary, NULL,
|
|
NULL);
|
|
}
|
|
else
|
|
ret = ERROR_INVALID_DATA;
|
|
}
|
|
else
|
|
ret = ERROR_INVALID_DATA;
|
|
return ret;
|
|
}
|
|
|
|
static LONG Base64HeaderToBinaryA(LPCSTR pszString, DWORD cchString,
|
|
BYTE *pbBinary, DWORD *pcbBinary, DWORD *pdwSkip, DWORD *pdwFlags)
|
|
{
|
|
LONG ret = Base64WithHeaderAndTrailerToBinaryA(pszString, cchString,
|
|
CERT_HEADER, CERT_TRAILER, pbBinary, pcbBinary, pdwSkip);
|
|
|
|
if (!ret && pdwFlags)
|
|
*pdwFlags = CRYPT_STRING_BASE64HEADER;
|
|
return ret;
|
|
}
|
|
|
|
static LONG Base64RequestHeaderToBinaryA(LPCSTR pszString, DWORD cchString,
|
|
BYTE *pbBinary, DWORD *pcbBinary, DWORD *pdwSkip, DWORD *pdwFlags)
|
|
{
|
|
LONG ret = Base64WithHeaderAndTrailerToBinaryA(pszString, cchString,
|
|
CERT_REQUEST_HEADER, CERT_REQUEST_TRAILER, pbBinary, pcbBinary, pdwSkip);
|
|
|
|
if (!ret && pdwFlags)
|
|
*pdwFlags = CRYPT_STRING_BASE64REQUESTHEADER;
|
|
return ret;
|
|
}
|
|
|
|
static LONG Base64X509HeaderToBinaryA(LPCSTR pszString, DWORD cchString,
|
|
BYTE *pbBinary, DWORD *pcbBinary, DWORD *pdwSkip, DWORD *pdwFlags)
|
|
{
|
|
LONG ret = Base64WithHeaderAndTrailerToBinaryA(pszString, cchString,
|
|
X509_HEADER, X509_TRAILER, pbBinary, pcbBinary, pdwSkip);
|
|
|
|
if (!ret && pdwFlags)
|
|
*pdwFlags = CRYPT_STRING_BASE64X509CRLHEADER;
|
|
return ret;
|
|
}
|
|
|
|
static LONG Base64AnyToBinaryA(LPCSTR pszString, DWORD cchString,
|
|
BYTE *pbBinary, DWORD *pcbBinary, DWORD *pdwSkip, DWORD *pdwFlags)
|
|
{
|
|
LONG ret;
|
|
|
|
ret = Base64HeaderToBinaryA(pszString, cchString, pbBinary, pcbBinary,
|
|
pdwSkip, pdwFlags);
|
|
if (ret == ERROR_INVALID_DATA)
|
|
ret = Base64ToBinaryA(pszString, cchString, pbBinary, pcbBinary,
|
|
pdwSkip, pdwFlags);
|
|
return ret;
|
|
}
|
|
|
|
static LONG DecodeBinaryToBinaryA(LPCSTR pszString, DWORD cchString,
|
|
BYTE *pbBinary, DWORD *pcbBinary, DWORD *pdwSkip, DWORD *pdwFlags)
|
|
{
|
|
LONG ret = ERROR_SUCCESS;
|
|
|
|
if (*pcbBinary < cchString)
|
|
{
|
|
if (!pbBinary)
|
|
*pcbBinary = cchString;
|
|
else
|
|
{
|
|
ret = ERROR_INSUFFICIENT_BUFFER;
|
|
*pcbBinary = cchString;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (cchString)
|
|
memcpy(pbBinary, pszString, cchString);
|
|
*pcbBinary = cchString;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static LONG DecodeAnyA(LPCSTR pszString, DWORD cchString,
|
|
BYTE *pbBinary, DWORD *pcbBinary, DWORD *pdwSkip, DWORD *pdwFlags)
|
|
{
|
|
LONG ret;
|
|
|
|
ret = Base64HeaderToBinaryA(pszString, cchString, pbBinary, pcbBinary,
|
|
pdwSkip, pdwFlags);
|
|
if (ret == ERROR_INVALID_DATA)
|
|
ret = Base64ToBinaryA(pszString, cchString, pbBinary, pcbBinary,
|
|
pdwSkip, pdwFlags);
|
|
if (ret == ERROR_INVALID_DATA)
|
|
ret = DecodeBinaryToBinaryA(pszString, cchString, pbBinary, pcbBinary,
|
|
pdwSkip, pdwFlags);
|
|
return ret;
|
|
}
|
|
|
|
BOOL WINAPI CryptStringToBinaryA(LPCSTR pszString,
|
|
DWORD cchString, DWORD dwFlags, BYTE *pbBinary, DWORD *pcbBinary,
|
|
DWORD *pdwSkip, DWORD *pdwFlags)
|
|
{
|
|
StringToBinaryAFunc decoder;
|
|
LONG ret;
|
|
|
|
TRACE("(%s, %d, %08x, %p, %p, %p, %p)\n", debugstr_a(pszString),
|
|
cchString, dwFlags, pbBinary, pcbBinary, pdwSkip, pdwFlags);
|
|
|
|
if (!pszString)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return FALSE;
|
|
}
|
|
/* Only the bottom byte contains valid types */
|
|
if (dwFlags & 0xfffffff0)
|
|
{
|
|
SetLastError(ERROR_INVALID_DATA);
|
|
return FALSE;
|
|
}
|
|
switch (dwFlags)
|
|
{
|
|
case CRYPT_STRING_BASE64_ANY:
|
|
decoder = Base64AnyToBinaryA;
|
|
break;
|
|
case CRYPT_STRING_BASE64:
|
|
decoder = Base64ToBinaryA;
|
|
break;
|
|
case CRYPT_STRING_BASE64HEADER:
|
|
decoder = Base64HeaderToBinaryA;
|
|
break;
|
|
case CRYPT_STRING_BASE64REQUESTHEADER:
|
|
decoder = Base64RequestHeaderToBinaryA;
|
|
break;
|
|
case CRYPT_STRING_BASE64X509CRLHEADER:
|
|
decoder = Base64X509HeaderToBinaryA;
|
|
break;
|
|
case CRYPT_STRING_BINARY:
|
|
decoder = DecodeBinaryToBinaryA;
|
|
break;
|
|
case CRYPT_STRING_ANY:
|
|
decoder = DecodeAnyA;
|
|
break;
|
|
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;
|
|
}
|
|
if (!cchString)
|
|
cchString = strlen(pszString);
|
|
ret = decoder(pszString, cchString, pbBinary, pcbBinary, pdwSkip, pdwFlags);
|
|
if (ret)
|
|
SetLastError(ret);
|
|
return (ret == ERROR_SUCCESS) ? TRUE : FALSE;
|
|
}
|