src/WINNT/client_config/misc.cpp

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #include <winsock2.h>
  11 #include <ws2tcpip.h>
  12
  13 extern "C" {
  14 #include <afs/param.h>
  15 #include <afs/stds.h>
  16 }
  17
  18 #include "afs_config.h"
  19
  20
  21 /*
  22  * REALLOC ____________________________________________________________________
  23  *
  24  */
  25
  26 BOOL AfsConfigReallocFunction (LPVOID *ppTarget, size_t cbElement, size_t *pcTarget, size_t cReq, size_t cInc)
  27 {
  28    LPVOID pNew;
  29    size_t cNew;
  30
  31    if (cReq <= *pcTarget)
  32       return TRUE;
  33
  34    if ((cNew = cInc * ((cReq + cInc-1) / cInc)) <= 0)
  35       return FALSE;
  36
  37    if ((pNew = (LPVOID)Allocate (cbElement * cNew)) == NULL)
  38       return FALSE;
  39    memset (pNew, 0x00, cbElement * cNew);
  40
  41    if (*pcTarget != 0)
  42       {
  43       memcpy (pNew, *ppTarget, cbElement * (*pcTarget));
  44       Free (*ppTarget);
  45       }
  46
  47    *ppTarget = pNew;
  48    *pcTarget = cNew;
  49    return TRUE;
  50 }
  51