| /* |
| * alloc.c |
| * |
| * memory allocation and deallocation |
| * |
| * David A. McGrew |
| * Cisco Systems, Inc. |
| */ |
| /* |
| * |
| * Copyright (c) 2001-2006 Cisco Systems, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * Neither the name of the Cisco Systems, Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include "alloc.h" |
| #include "crypto_kernel.h" |
| |
| /* the debug module for memory allocation */ |
| |
| srtp_debug_module_t mod_alloc = { |
| 0, /* debugging is off by default */ |
| "alloc" /* printable name for module */ |
| }; |
| |
| /* |
| * Nota bene: the debugging statements for srtp_crypto_alloc() and |
| * srtp_crypto_free() have identical prefixes, which include the addresses |
| * of the memory locations on which they are operating. This fact can |
| * be used to locate memory leaks, by turning on memory debugging, |
| * grepping for 'alloc', then matching alloc and free calls by |
| * address. |
| */ |
| |
| #if defined(HAVE_STDLIB_H) |
| |
| void * srtp_crypto_alloc(size_t size) { |
| void *ptr; |
| |
| ptr = malloc(size); |
| |
| if (ptr) { |
| debug_print(mod_alloc, "(location: %p) allocated", ptr); |
| } else { |
| debug_print(mod_alloc, "allocation failed (asked for %d bytes)\n", size); |
| } |
| |
| return ptr; |
| } |
| |
| void srtp_crypto_free(void *ptr) { |
| |
| debug_print(mod_alloc, "(location: %p) freed", ptr); |
| |
| free(ptr); |
| } |
| |
| #else /* we need to define our own memory allocation routines */ |
| |
| #error no memory allocation defined yet |
| |
| #endif |