reactos/dll/netapi32/apibuf.c

   1 /*
   2  * Copyright 2002 Andriy Palamarchuk
   3  *
   4  * Net API buffer calls
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "lmcons.h"
  26 #include "lmapibuf.h"
  27 #include "lmerr.h"
  28 #include "winerror.h"
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(netapi32);
  32
  33 /************************************************************
  34  *                NetApiBufferAllocate  (NETAPI32.@)
  35  */
  36 NET_API_STATUS WINAPI NetApiBufferAllocate(DWORD ByteCount, LPVOID* Buffer)
  37 {
  38     TRACE("(%ld, %p)\n", ByteCount, Buffer);
  39     *Buffer = HeapAlloc(GetProcessHeap(), 0, ByteCount);
  40     if (*Buffer)
  41         return NERR_Success;
  42     else
  43         return GetLastError();
  44 }
  45
  46 /************************************************************
  47  *                NetApiBufferFree  (NETAPI32.@)
  48  */
  49 NET_API_STATUS WINAPI NetApiBufferFree(LPVOID Buffer)
  50 {
  51     TRACE("(%p)\n", Buffer);
  52     HeapFree(GetProcessHeap(), 0, Buffer);
  53     return NERR_Success;
  54 }
  55
  56 /************************************************************
  57  *                NetApiBufferReallocate  (NETAPI32.@)
  58  */
  59 NET_API_STATUS WINAPI NetApiBufferReallocate(LPVOID OldBuffer, DWORD NewByteCount,
  60                                              LPVOID* NewBuffer)
  61 {
  62     TRACE("(%p, %ld, %p)\n", OldBuffer, NewByteCount, NewBuffer);
  63     if (NewByteCount)
  64     {
  65         if (OldBuffer)
  66             *NewBuffer = HeapReAlloc(GetProcessHeap(), 0, OldBuffer, NewByteCount);
  67         else
  68             *NewBuffer = HeapAlloc(GetProcessHeap(), 0, NewByteCount);
  69         return *NewBuffer ? NERR_Success : GetLastError();
  70     }
  71     else
  72     {
  73         if (!HeapFree(GetProcessHeap(), 0, OldBuffer)) return GetLastError();
  74         *NewBuffer = 0;
  75         return NERR_Success;
  76     }
  77 }
  78
  79 /************************************************************
  80  *                NetApiBufferSize  (NETAPI32.@)
  81  */
  82 NET_API_STATUS WINAPI NetApiBufferSize(LPVOID Buffer, LPDWORD ByteCount)
  83 {
  84     DWORD dw;
  85
  86     TRACE("(%p, %p)\n", Buffer, ByteCount);
  87     if (Buffer == NULL)
  88         return ERROR_INVALID_PARAMETER;
  89     dw = HeapSize(GetProcessHeap(), 0, Buffer);
  90     TRACE("size: %ld\n", dw);
  91     if (dw != 0xFFFFFFFF)
  92         *ByteCount = dw;
  93     else
  94         *ByteCount = 0;
  95
  96     return NERR_Success;
  97 }