kbx/keybox-util.c

   1 /* keybox-util.c - Utility functions for Keybox
   2  *      Copyright (C) 2001 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG 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
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <config.h>
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24
  25 #include "keybox-defs.h"
  26
  27
  28 static void *(*alloc_func)(size_t n) = malloc;
  29 static void *(*realloc_func)(void *p, size_t n) = realloc;
  30 static void (*free_func)(void*) = free;
  31
  32
  33
  34 void
  35 keybox_set_malloc_hooks ( void *(*new_alloc_func)(size_t n),
  36                           void *(*new_realloc_func)(void *p, size_t n),
  37                           void (*new_free_func)(void*) )
  38 {
  39   alloc_func        = new_alloc_func;
  40   realloc_func      = new_realloc_func;
  41   free_func         = new_free_func;
  42 }
  43
  44 void *
  45 _keybox_malloc (size_t n)
  46 {
  47   return alloc_func (n);
  48 }
  49
  50 void *
  51 _keybox_realloc (void *a, size_t n)
  52 {
  53   return realloc_func (a, n);
  54 }
  55
  56 void *
  57 _keybox_calloc (size_t n, size_t m)
  58 {
  59   void *p = _keybox_malloc (n*m);
  60   if (p)
  61     memset (p, 0, n* m);
  62   return p;
  63 }
  64
  65 void
  66 _keybox_free (void *p)
  67 {
  68   if (p)
  69     free_func (p);
  70 }
  71