reactos/dll/win32/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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("(%d, %p)\n", ByteCount, Buffer);
  39
  40     if (Buffer == NULL) return ERROR_INVALID_PARAMETER;
  41     *Buffer = HeapAlloc(GetProcessHeap(), 0, ByteCount);
  42     if (*Buffer)
  43         return NERR_Success;
  44     else
  45         return GetLastError();
  46 }
  47
  48 /************************************************************
  49  *                NetApiBufferFree  (NETAPI32.@)
  50  */
  51 NET_API_STATUS WINAPI NetApiBufferFree(LPVOID Buffer)
  52 {
  53     TRACE("(%p)\n", Buffer);
  54     HeapFree(GetProcessHeap(), 0, Buffer);
  55     return NERR_Success;
  56 }
  57
  58 /************************************************************
  59  *                NetApiBufferReallocate  (NETAPI32.@)
  60  */
  61 NET_API_STATUS WINAPI NetApiBufferReallocate(LPVOID OldBuffer, DWORD NewByteCount,
  62                                              LPVOID* NewBuffer)
  63 {
  64     TRACE("(%p, %d, %p)\n", OldBuffer, NewByteCount, NewBuffer);
  65     if (NewByteCount)
  66     {
  67         if (OldBuffer)
  68             *NewBuffer = HeapReAlloc(GetProcessHeap(), 0, OldBuffer, NewByteCount);
  69         else
  70             *NewBuffer = HeapAlloc(GetProcessHeap(), 0, NewByteCount);
  71         return *NewBuffer ? NERR_Success : GetLastError();
  72     }
  73     else
  74     {
  75         if (!HeapFree(GetProcessHeap(), 0, OldBuffer)) return GetLastError();
  76         *NewBuffer = 0;
  77         return NERR_Success;
  78     }
  79 }
  80
  81 /************************************************************
  82  *                NetApiBufferSize  (NETAPI32.@)
  83  */
  84 NET_API_STATUS WINAPI NetApiBufferSize(LPVOID Buffer, LPDWORD ByteCount)
  85 {
  86     DWORD dw;
  87
  88     TRACE("(%p, %p)\n", Buffer, ByteCount);
  89     if (Buffer == NULL)
  90         return ERROR_INVALID_PARAMETER;
  91     dw = HeapSize(GetProcessHeap(), 0, Buffer);
  92     TRACE("size: %d\n", dw);
  93     if (dw != 0xFFFFFFFF)
  94         *ByteCount = dw;
  95     else
  96         *ByteCount = 0;
  97
  98     return NERR_Success;
  99 }