Leaked source code of windows server 2003
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/*++
Copyright (c) 1990 Microsoft Corporation
Module Name:
memory.c
Abstract:
This module provides all the memory management functions for all spooler
components
Author:
Krishna Ganugapati (KrishnaG) 03-Feb-1994
Revision History:
--*/
#define UNICODE
#define _UNICODE
#include "dswarn.h"
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <tchar.h>
#include <wchar.h>
#include <winldap.h>
#include <adserr.h>
#include "memory.h"
#define MAPHEXTODIGIT(x) ( x >= '0' && x <= '9' ? (x-'0') : \
x >= 'A' && x <= 'F' ? (x-'A'+10) : \
x >= 'a' && x <= 'f' ? (x-'a'+10) : 0 )
HRESULT
ADsEncodeBinaryData (
PBYTE pbSrcData,
DWORD dwSrcLen,
LPWSTR * ppszDestData
)
{
LPWSTR pszDest = NULL;
DWORD dwDestLen, dwDestSize = 0;
WCHAR wch;
if (!ppszDestData || (!pbSrcData && dwSrcLen))
return (E_ADS_BAD_PARAMETER);
*ppszDestData = NULL;
//
// figure out how long of a buffer we need.
//
dwDestLen = ldap_escape_filter_element (
(char *) pbSrcData,
dwSrcLen,
NULL,
0
);
if (dwDestLen == 0) {
return S_OK;
}
dwDestSize = dwDestLen * sizeof (WCHAR);
pszDest = (LPWSTR) AllocADsMem( dwDestSize );
if (pszDest == NULL)
return (E_OUTOFMEMORY );
dwDestLen = ldap_escape_filter_element (
(char *) pbSrcData,
dwSrcLen,
pszDest,
dwDestSize
);
if(dwDestLen)
{
if(pszDest)
{
FreeADsMem(pszDest);
}
return (E_FAIL);
}
*ppszDestData = pszDest;
return (S_OK);
}
HRESULT
ADsDecodeBinaryData (
LPWSTR szSrcData,
PBYTE *ppbDestData,
ULONG *pdwDestLen
)
{
HRESULT hr = S_OK;
ULONG dwDestLen = 0;
LPWSTR szSrc = NULL;
PBYTE pbDestData = NULL;
PBYTE pbDestDataCurrent = NULL;
WCHAR ch = 0;
if (szSrcData == NULL) {
return E_FAIL;
}
//
// Counting length of output binary string
//
szSrc = szSrcData;
while (*szSrc != L'\0') {
ch = *(szSrc++);
if (ch == L'\\') {
szSrc = szSrc + 2;
}
dwDestLen++;
}
//
// Allocating return binary string
//
pbDestData = (PBYTE) AllocADsMem(dwDestLen);
if (pbDestData == NULL) {
hr = E_OUTOFMEMORY;
return (hr);
}
//
// Decoding String
//
szSrc = szSrcData;
pbDestDataCurrent = pbDestData;
while (*szSrc != L'\0') {
ch = *szSrc ++;
if (ch == L'\\') {
*(pbDestDataCurrent++) = MAPHEXTODIGIT( *szSrc ) * 16 +
MAPHEXTODIGIT( *(szSrc+1) );
szSrc+=2;
}
else {
*(pbDestDataCurrent++) = (BYTE)ch;
}
}
*ppbDestData = pbDestData;
*pdwDestLen = dwDestLen;
return hr;
}