/* * alloc.c * * memory allocation and deallocation * * David A. McGrew * Cisco Systems, Inc.
*/ /* * * Copyright (c) 2001-2017 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 srtp_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.
*/
#ifdefined(HAVE_STDLIB_H)
void *srtp_crypto_alloc(size_t size)
{ void *ptr;
if (!size) { return NULL;
}
ptr = calloc(1, size);
if (ptr) {
debug_print(srtp_mod_alloc, "(location: %p) allocated", ptr);
} else {
debug_print(srtp_mod_alloc, "allocation failed (asked for %zu bytes)\n",
size);
}
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