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; }
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