lib/gnutls_mem.h

   1 /*
   2  * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
   3  *
   4  * Author: Nikos Mavrogiannopoulos
   5  *
   6  * This file is part of GNUTLS.
   7  *
   8  * The GNUTLS library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public License
  10  * as published by the Free Software Foundation; either version 2.1 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  21  * USA
  22  *
  23  */
  24
  25 #ifndef GNUTLS_MEM_H
  26 # define GNUTLS_MEM_H
  27
  28 #ifdef USE_DMALLOC
  29 # include <dmalloc.h>
  30 #endif
  31
  32 typedef void svoid;             /* for functions that allocate using gnutls_secure_malloc */
  33
  34 /* Use gnutls_afree() when calling alloca, or
  35  * memory leaks may occur in systems which do not
  36  * support alloca.
  37  */
  38 #ifdef USE_EFENCE
  39 # define gnutls_alloca gnutls_malloc
  40 # define gnutls_afree gnutls_free
  41 #endif
  42
  43 #ifdef HAVE_ALLOCA
  44 # ifdef HAVE_ALLOCA_H
  45 #  include <alloca.h>
  46 # endif
  47 # ifndef gnutls_alloca
  48 #  define gnutls_alloca alloca
  49 #  define gnutls_afree(x)
  50 # endif
  51 #else
  52 # ifndef gnutls_alloca
  53 #  define gnutls_alloca gnutls_malloc
  54 #  define gnutls_afree gnutls_free
  55 # endif
  56 #endif /* HAVE_ALLOCA */
  57
  58 extern int (*_gnutls_is_secure_memory) (const void *);
  59
  60 /* this realloc function will return ptr if size==0, and
  61  * will free the ptr if the new allocation failed.
  62  */
  63 void *gnutls_realloc_fast (void *ptr, size_t size);
  64
  65 svoid *gnutls_secure_calloc (size_t nmemb, size_t size);
  66
  67 void *_gnutls_calloc (size_t nmemb, size_t size);
  68 char *_gnutls_strdup (const char *);
  69
  70 #endif /* GNUTLS_MEM_H */