wine/dlls/netapi32/apibuf.c
Dimitrie O. Paun add6726c90 Fix NetApiBufferReallocate and add a few tests for the border cases
(thanks to Juan Lang for clarifications).
2003-12-04 01:42:34 +00:00

95 lines
2.7 KiB
C

/*
* Copyright 2002 Andriy Palamarchuk
*
* Net API buffer calls
*
* 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 2.1 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "lmcons.h"
#include "lmapibuf.h"
#include "lmerr.h"
#include "winerror.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(netapi32);
/************************************************************
* NetApiBufferAllocate (NETAPI32.@)
*/
NET_API_STATUS WINAPI NetApiBufferAllocate(DWORD ByteCount, LPVOID* Buffer)
{
TRACE("(%ld, %p)\n", ByteCount, Buffer);
*Buffer = HeapAlloc(GetProcessHeap(), 0, ByteCount);
if (*Buffer)
return NERR_Success;
else
return GetLastError();
}
/************************************************************
* NetApiBufferFree (NETAPI32.@)
*/
NET_API_STATUS WINAPI NetApiBufferFree(LPVOID Buffer)
{
TRACE("(%p)\n", Buffer);
HeapFree(GetProcessHeap(), 0, Buffer);
return NERR_Success;
}
/************************************************************
* NetApiBufferReallocate (NETAPI32.@)
*/
NET_API_STATUS WINAPI NetApiBufferReallocate(LPVOID OldBuffer, DWORD NewByteCount,
LPVOID* NewBuffer)
{
TRACE("(%p, %ld, %p)\n", OldBuffer, NewByteCount, NewBuffer);
if (NewByteCount)
{
*NewBuffer = HeapReAlloc(GetProcessHeap(), 0, OldBuffer, NewByteCount);
return *NewBuffer ? NERR_Success : GetLastError();
}
else
{
if (!HeapFree(GetProcessHeap(), 0, OldBuffer)) return GetLastError();
*NewBuffer = 0;
return NERR_Success;
}
}
/************************************************************
* NetApiBufferSize (NETAPI32.@)
*/
NET_API_STATUS WINAPI NetApiBufferSize(LPVOID Buffer, LPDWORD ByteCount)
{
DWORD dw;
TRACE("(%p, %p)\n", Buffer, ByteCount);
if (Buffer == NULL)
return ERROR_INVALID_PARAMETER;
dw = HeapSize(GetProcessHeap(), 0, Buffer);
TRACE("size: %ld\n", dw);
if (dw != 0xFFFFFFFF)
*ByteCount = dw;
else
*ByteCount = 0;
return NERR_Success;
}